SCHEDULE 14A INFORMATION

          PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES
                     EXCHANGE ACT OF 1934 (AMENDMENT NO. )

FILED BY REGISTRANT    /X/     FILED BY A PARTY OTHER THAN THE REGISTRANT  / /

-------------------------------------------------------------------------------

Check the appropriate box:
/ / Preliminary Proxy Statement
/X/ Definitive Proxy Statement
/ / Definitive Additional Materials
/ / Soliciting Materual Pursuant to sec.240.14a-11(c) or sec.240.14a-12
/ / Confidential, For Use of the Commission Only (as permitted by
    Rule 14a-6(e) (2))


                                 Diacrin, Inc.
                (Name of Registrant as Specified In Its Charter)

                                 Diacrin, Inc.
                   (Name of Person(s) Filing Proxy Statement)

PAYMENT OF FILING FEE (CHECK APPROPRIATE BOX):
/X/ No fee required.
/ / Fee computed on table below per Exchange Act Rules 14a-(6)i(4) and 0-11.

     1) Title of each class of securities to which transaction applies:

     2) Aggregate number of securities to which transaction applies:

     3) Per unit price of other underlying value of transaction computed
pursuant to Exchange Act Rule 0-11 (Set forth the amount on whic the filing fee
is calculated and state how it was determined):

     4) Proposed maximum aggregate value of transaction:

     5) Total fee paid:

/ / Fee paid previously with preliminary materials.

/ / Check box if any part of the fee is offset as provided by Exchange Act Rule
0-11(a)(2) and identify the filing for which the offsetting fee was paid
previously. Identify the previous filing by registration statement number,
or the Form or Schedule and the date of its filing.

     1) Amount Previously Paid:

     2) Form, Schedule or Registration Statement No.:

     3) Filing Party:

     4) Date Filed:

--------------------------------------------------------------------------------





                                  Diacrin, Inc.
                             Building 96 13th Street
                              Charlestown Navy Yard
                        Charlestown, Massachusetts 02129

                  Notice of 2001 Annual Meeting of Stockholders
                           To Be Held on July 31, 2001

         The  2001  Annual  Meeting  of  Stockholders  of  Diacrin,   Inc.  (the
"Company")  will be held at the offices of Hale and Dorr LLP,  60 State  Street,
Boston,  Massachusetts  on Tuesday,  July 31, 2001 at 10:00 a.m., local time, to
consider and act upon the following matters:

         1.   To elect six directors for a one-year term;

         2.   To ratify the  selection of Arthur  Andersen LLP as the  Company's
              independent auditors for fiscal 2001; and

         3.   To transact  such other  business as may properly  come before the
              meeting or any adjournment thereof.

         Stockholders of record at the close of business on June 6, 2001 will be
entitled to notice of and to vote at the meeting or any adjournment thereof. The
stock  transfer  books of the Company will remain open for the purchase and sale
of the Company's Common Stock.


                                            By Order of the Board of Directors,



                                                    Steven D. Singer, Secretary
Charlestown, Massachusetts
June 25, 2001






--------------------------------------------------------------------------------
         WHETHER OR NOT YOU EXPECT TO ATTEND THE MEETING,  PLEASE COMPLETE, DATE
AND SIGN THE  ENCLOSED  PROXY AND MAIL IT PROMPTLY IN THE  ENCLOSED  ENVELOPE IN
ORDER TO ENSURE REPRESENTATION OF YOUR SHARES AT THE MEETING. NO POSTAGE NEED BE
AFFIXED IF THE PROXY IS MAILED IN THE UNITED STATES.
--------------------------------------------------------------------------------






                                  Diacrin, Inc.
                             Building 96 13th Street
                              Charlestown Navy Yard
                        Charlestown, Massachusetts 02129

           Proxy Statement for the 2001 Annual Meeting of Stockholders
                           To Be Held on July 31, 2001

         This Proxy Statement is furnished in connection  with the  solicitation
of proxies by the Board of Directors of Diacrin, Inc. (the "Company") for use at
the Annual  Meeting of  Stockholders  to be held on July 31,  2001 (the  "Annual
Meeting") and at any  adjournment of that meeting.  All proxies will be voted in
accordance with the stockholders'  instructions,  and if no choice is specified,
the proxies will be voted in favor of the matters set forth in the  accompanying
Notice of Meeting.  Any proxy may be revoked by a stockholder at any time before
its exercise by delivery of a written  revocation or a subsequently  dated proxy
to the Secretary of the Company or by voting in person at the Annual Meeting.

         The Company's Annual Report for 2000 will be mailed to stockholders,
 along with these proxy materials, on or about June 29, 2001.

         A copy of the  Company's  Annual Report on Form 10-K for the year ended
December 31, 2000, as filed with the Securities and Exchange Commission,  except
for exhibits,  will be furnished  without charge to any stockholder upon written
request  of  Investor  Relations,  Diacrin,  Inc.,  Building  96,  13th  Street,
Charlestown Navy Yard, Charlestown, Massachusetts 02129.

Securities and Votes Required

         At the close of  business  on June 6,  2001,  the  record  date for the
determination of stockholders entitled to vote at the Annual Meeting, there were
outstanding  and entitled to vote 17,914,704  shares of common stock,  $0.01 par
value per share (the "Common Stock") (constituting all of the outstanding voting
stock of the  Company).  Each share of Common  Stock  entitles the holder to one
vote.

         Under the Company's By-laws, the holders of a majority of the shares of
Common Stock  issued,  outstanding  and  entitled to vote at the Annual  Meeting
shall constitute a quorum for the transaction of business at the Annual Meeting.
Shares of Common  Stock  present in person or  represented  by proxy  (including
shares  which  abstain or do not vote with respect to one or more of the matters
presented for stockholder  approval) will be counted for purposes of determining
whether a quorum is present at the Annual Meeting.

     If a quorum is present,  the affirmative vote of the holders of a plurality
of the  shares of  Common  Stock  present  (either  in  person or by proxy)  and
entitled  to vote is required  for the  election  of  directors.  If a quorum is
present,  the  affirmative  vote of the  holders of a majority  of the shares of
Common  Stock  present  (either in person or by proxy) and  entitled  to vote is
required  to ratify  the  selection  of  Arthur  Andersen  LLP as the  Company's
independent  auditors for the current year. For purposes of tabulating the vote,
abstentions will be treated as shares that are present and entitled to


                                     - 1 -




vote. Accordingly, an abstention will have the same effect as a vote against the
matter.  In  addition,  if a broker or nominee  holding  stock in "street  name"
indicates on the proxy that it does not have discretionary  authority to vote as
to a  particular  matter,  those  shares will not be  considered  as present and
entitled to vote with respect to that particular matter.  Accordingly, a "broker
non-vote"  on a matter  will have no effect on the outcome of the voting on such
matter.

Principal Stockholders

         The  following  table  sets  forth  the  beneficial  ownership  of  the
Company's Common Stock as of May 31, 2001 by:

     - each person who is known to beneficially own more than 5% of the
       Company's Common Stock;

     - each director or nominee for director of the Company;

     - each executive officer of the Company named in the Summary  Compensation
       Table under the heading "Executive  Compensation"; and

     - all executive officers and directors of the Company as a group.

         Unless  otherwise  noted,  each  person  or group has sole  voting  and
investment power of the shares listed.  The inclusion of any shares listed below
as beneficially  owned does not constitute an admission of beneficial  ownership
of those shares.

         The "Options"  column  reflects  shares of the  Company's  Common Stock
subject to options which are exercisable  within 60 days after May 31, 2001. The
shares of the Company's  Common Stock which are subject to options are deemed to
be  outstanding  for the purpose of computing the percentage of ownership of the
person holding such options,  but are not deemed to be outstanding for computing
the percentage of ownership of any other person.  As of May 31, 2001, there were
17,914,704 shares of Common Stock outstanding.






                                                        Number of Shares
                                                       Beneficially Owned              Percentage of
                                                     -----------------------            Common Stock
                  Name and Address                  Shares            Options           Outstanding
                                                                                 
HealthCare Ventures II, L.P. (1)...........       3,196,385             --                 17.8%
HealthCare Ventures III, L.P. (1)..........         994,078             --                  5.5
HealthCare Ventures IV, L.P. (1)...........         291,922             --                  1.6
State of Wisconsin Investment Board (2)....       2,658,200             --                 14.8
Rho Management Trust II (3)................       1,592,887             --                  8.9
Hudson Trust (4)...........................       1,342,680             --                  7.5
Thomas H. Fraser, Ph.D.....................         483,488          158,750                3.6
Zola P. Horovitz, Ph.D. ...................           4,000           19,500                 *
John W. Littlechild (1)....................       4,482,385           11,500               25.1
Stelios Papadopoulos, Ph.D.................         200,000           11,500                1.2
Joshua Ruch (5)............................       1,759,587           11,500                9.9
Henri A. Termeer...........................           7,750           44,500                 *
E. Michael Egan............................           4,169          162,495                1.0
All directors and executive officers as a
group (8 persons)..........................       6,941,379          429,245               40.2



-------------------------------------

*  Less than 1.0%

                                     - 2 -



(1)  John W.  Littlechild is a general  partner of HealthCare  Partners II, L.P.
     ("HCPII"), HealthCare Partners III, L.P. ("HCPIII") and HealthCare Partners
     IV, L.P.  ("HCPIV"),  the general  partner of HealthCare  Ventures II, L.P.
     ("HCVII"), HealthCare Ventures III, L.P. ("HCVIII") and HealthCare Ventures
     IV, L.P. ("HCVIV"),  respectively. Mr. Littlechild,  together with James H.
     Cavanaugh,  Harold R. Werner and William Crouse, the other general partners
     of HCPII,  HCPIII  and HCPIV,  share  voting and  investment  control  with
     respect  to shares  owned by HCVII,  HCVIII and  HCVIV,  respectively.  Mr.
     Littlechild  does not own any shares of the Company's  capital stock in his
     individual  capacity.  The address of  HealthCare  Ventures II, III and IV,
     L.P. is 44 Nassau Street, Princeton, New Jersey 08542.

(2)  The address of the State of  Wisconsin  Investment  Board is P.O. Box 7842,
     Madison, Wisconsin 53707.

(3)  Rho Management  Partners,  L.P. may be deemed the beneficial owner of these
     shares  pursuant to an  investment  advisory  agreement  that  confers sole
     voting and investment control over such shares to Rho Management  Partners,
     L.P. The address of Rho Management Trust II is c/o Rho Management  Company,
     Inc., 152 West 57th Street, New York, New York 10019.

(4)  The address of Hudson Trust is c/o Summit Asset  Management  Co.,  Inc., 47
     Hulfish Street, Suite 420, Princeton, New Jersey 08542.

(5)  Mr. Ruch is a controlling person of Rho Management  Partners,  L.P. and may
     be deemed the beneficial  owner of the shares held by Rho Management  Trust
     II. In addition,  Mr. Ruch exercises  investment and voting  authority over
     166,700  shares  directly  for his own  account,  for the account of family
     members or for the  account of other  clients of Rho  Management  Partners,
     L.P.


                       PROPOSAL ONE: ELECTION OF DIRECTORS

         The Company's By-Laws provide that the Board of Directors shall fix the
number of directors to  constitute  the Board.  The Board of Directors has fixed
the  number of  directors  at six to serve  until  the 2002  Annual  Meeting  of
Stockholders.

         The persons named in the enclosed proxy will vote to elect as directors
the six  nominees  named  below,  unless  the  proxy is marked  otherwise.  If a
stockholder returns a proxy without contrary instructions,  the persons named as
proxies will vote to elect as directors the nominees  named below,  each of whom
is currently a member of the Board of Directors of the Company.

         Each  director  will be elected to hold  office  until the 2002  Annual
Meeting of  Stockholders  and until his successor is duly elected and qualified.
The nominees have indicated their willingness to serve, if elected;  however, if
any nominee should be unable to serve, the shares of Common Stock represented by
proxies  may be  voted  for a  substitute  nominee  designated  by the  Board of
Directors.

         Set  forth  below is the name and age of each  member  of the  Board of
Directors,  the positions and offices held by him, his principal  occupation and
business experience during the past five years, the names of other publicly held
companies of which he serves as a director and the year of the  commencement  of
his term as a director of the Company. Information with respect to the number of
shares  of  Common  Stock  beneficially  owned  by each  director,  directly  or
indirectly,  as of May 31,  2001,  appears  above under the  heading  "Principal
Stockholders." There are no family  relationships  between or among any officers
or directors of the Company.

                                     - 3 -






                                     Year First          Principal Occupation or
                                      Became a         Employment During Past Five
       Name                  Age      Director       Years and Current Directorships
       ----                  ---      --------       --------------------------------
                                        
Thomas H. Fraser, Ph.D.      53         1990      President, Chief Executive Officer and
                                                  Director of the Company since 1990.

Zola P. Horovitz, Ph.D.      66         1994      Vice President, Business Development
                                                  and Planning from 1991 to 1994 of
                                                  Bristol-Myers Squibb Pharmaceutical
                                                  Group, a health and personal care
                                                  company; Chairman of hte Board of
                                                  Directors of Magainin Pharmaceuticals;
                                                  Director of Avigen Inc., BuiCryst
                                                  Pharmaceuticals, Palatin Technologies,
                                                  Paligent, Shire Pharmaceuticals and
                                                  Synaptic Pharmaceuticals, Inc.

John W. Littlechild          49         1992      Principal, HealthCare Ventures LLC, a
                                                  venture capital management company,
                                                  since 1992; Director of Orthofix
                                                  International N.V. and Dyax.



                                     - 4 -







                                     Year First          Principal Occupation or
                                      Became a         Employment During Past Five
       Name                  Age      Director       Years and Current Directorships
       ----                  ---      --------       --------------------------------
                                        
Stelios Papadopoulos, Ph.D.   52        1991      Managing Director at SG Cowen
                                                  Securities Corporation, a securties and
                                                  investment banking firm, since February
                                                  2000; employed as an investment banker
                                                  at PaineWebber Incorporated from 1987
                                                  to February 2000, most recently as
                                                  Chairman of PaineWebber Development
                                                  Corp., a subsidiary of PaineWebber
                                                  Incorporated engaged in investment
                                                  banking and securities brokerage.

Joshua Ruch                   51        1998      Chairman and Chief Executive Officer
                                                  of Rho Management Company, Inc., an
                                                  investment advisory firm with which he
                                                  has been affiliated since 1981; Director
                                                  of 3-Dimensional Pharmaceuticals, Inc.

Henri A. Termeer              55        1996      President and Director since 1983, Chief
                                                  Executive Officer since 1985 and
                                                  Chairman of the Board of Directors
                                                  since 1988 of Genzyme Corporation, a
                                                  biotechnology company; Director of
                                                  Abiomed, Inc., AutoImmune, Inc. and
                                                  Genzyme Transgenics Corporation;
                                                  trustee of Hambrecht & Quist
                                                  Healthcare Investors and of Hambrecht
                                                  & Quist Life Sciences Investors.




                                     - 5 -





Meetings of Board of Directors and Committees

         During 2000, the Board of Directors  held six meetings.  Each director,
other than Henri Termeer, attended at least 75% of the meetings of the Board and
of the committees on which he then served.

         The Company has a Compensation Committee composed entirely of directors
who are not employees of the Company. The Committee provides  recommendations to
the Board  regarding  compensation  programs  of the  Company,  administers  the
Company's stock option plans and is authorized to grant stock options under such
plans to officers  and  directors of the Company.  In addition,  this  Committee
approves the compensation  paid to the President and Chief Executive Officer and
other executive  officers of the Company.  The  Compensation  Committee met once
during  2000.  The current  members of the  Compensation  Committee  are Messrs.
Littlechild and Termeer and Dr.  Papadopoulos.  See "Report of the  Compensation
Committee" below.

         The Company has an Audit  Committee  which provides the opportunity for
direct contact between the Company's independent auditors and the Board, reviews
the  effectiveness  of the  auditors  during  the  annual  audit,  monitors  the
Company's  internal   accounting  control  policies  and  procedures,   oversees
financial   reporting  to   stockholders,   oversees  the  ethical  behavior  of
management,  and  considers  and  recommends  the  selection  of  the  Company's
independent  auditors.  The Audit  Committee  met once during 2000.  The current
members of the Audit Committee are Drs. Horovitz and Papadopoulos and Mr. Ruch.

         The Company does not have a Nominating Committee or a committee serving
similar  functions.  Nominations  are  made by and  through  the  full  Board of
Directors.

Director Compensation

         Dr. Horovitz  receives $2,000 plus expenses per board meeting  attended
plus an additional  $4,000  annually for consulting  work performed on behalf of
the Company.  No other directors  receive any cash  compensation for services on
the Board of Directors.

         On June 19, 2000, all non-employee  directors were granted an option to
purchase 6,000 shares of Common Stock under the Company's 1997 Stock Option Plan
at an  exercise  price of $7.88 per share.  The options  may be  exercised  on a
cumulative basis as to 25% of the shares on the first anniversary of the date of
grant and an additional 25% at the end of each one-year period thereafter.


                                     - 6 -







Executive Compensation

         Summary  Compensation  Table.  The  following  table sets forth certain
information  with respect to the annual and long-term  compensation  for each of
the last three fiscal years of the Company's Chief  Executive  Officer and Chief
Operating Officer (the "Named Officers"):




                                      Annual Compensation          Long-Term Compensation
                                                                            Awards
           Name and                                                 Securities Underlying
     Principal Position       Year    Salary($)(1)     Bonus($)(2)         Options(#)
                                                              
Thomas H. Fraser              2000      $270,000       $25,000             25,000
   President and Chief        1999       260,000        40,000             25,000
   Executive Officer          1998       250,000        35,000             25,000

E. Michael Egan               2000      $200,000       $20,000             20,000
   Chief Operating Officer    1999       190,000        30,000             20,000
                              1998       180,000        25,000             20,000



------------------------------
(1)  Amounts  shown include cash  compensation  earned and received by the Named
     Officers as well as amounts  earned but  deferred at the  election of these
     officers to the Company's 401(k) Plan.

(2)  Amounts  in this  column  represent  bonuses  paid  or  accrued  under  the
     Company's annual management bonus plan.


                                     - 7 -





Option  Grants  Table.  The  following  table  sets  forth  certain  information
regarding  options granted during the fiscal year ended December 31, 2000 to the
Named Officers:





                                              Individual Grants
                    -----------------------------------------------------------
                                     Percent of                                     Potential Realizable Value
                     Number of          Total                                        at Assumed Annual Rates
                    Securities         Options                                     of Stock Price Appreciation
                    Underlying        Granted to     Exercise or                       for Option Term (2)
                      Options        Employees in     Base Price     Expiration    ----------------------------
      Name        Granted (#) (1)     Fiscal Year       ($/Sh)          Date          5% ($)         10% ($)
      ----        ---------------     -----------    -----------      ---------    ------------  --------------
                                                                                 
Thomas H. Fraser       25,000             16%           $4.69         12/27/10       $73,705       $186,785
E. Michael Egan        20,000             13%           $4.69         12/27/10       $58,964       $149,428




---------------
(1)  Options   granted  in  2000  become   exercisable   in  four  equal  annual
     installments, commencing 12 months after the date of grant.

(2)  Amounts  represent  hypothetical  gains  that  could  be  achieved  for the
     respective  options if exercised at the end of the option term. These gains
     are  based  on  assumed  rates of stock  price  appreciation  of 5% and 10%
     compounded  annually from the date the  respective  options were granted to
     their expiration date. Actual gains, if any, on stock option exercises will
     depend on the future performance of the Company's Common Stock and the date
     on which the options are exercised.

         Aggregated  Option  Exercises and Year-End Option Table.  The following
table sets forth certain information regarding aggregate option exercises during
the fiscal year ended  December 31, 2000 and the number and value of unexercised
stock options held as of December 31, 2000 by the Named Officers:



                                                                        Number of
                                                                   Securities Underlying       Value of Unexercised In-
                                                                   Unexercised Options at        the-Money Options at
                                                                     Fiscal Year-End (#)        Fiscal Year-End ($)(2)
                       Shares Acquired      Value Realized             Exercisable/                 Exercisable/
    Name                on Exercise (#)        ($)(1)                   Unexercisable                Unexercisable
   ------              ----------------     --------------         -----------------             -----------------
                                                                                       
Thomas H. Fraser                 -                -                 158,750 / 63,750                $299,375 / $7,799
E. Michael Egan                  -                -                 162,495 / 50,000                $395,482 / $6,240



--------------------
(1)  Represents the  difference  between the exercise price and the value of the
     Company's Common Stock on the date of exercise.

(2)  Based on the value of the  Company's  Common  Stock on  December  29,  2000
     ($5.00 per share), the last trading day of 2000, less the applicable option
     exercise price.


                                     - 8 -






Employment Agreements

         The Company has entered into a letter  agreement  with Dr. Fraser dated
February 6, 1990, providing for an annual salary plus bonus as determined by the
Board of  Directors.  The Company has agreed with Dr.  Fraser to continue to pay
his then  current  salary  for a  period  of six  months  if it  terminates  his
employment  without  cause.  Dr.  Fraser has also agreed not to compete with the
Company for one year following  termination of his employment.  At the Company's
election,  this  non-competition  provision  can be extended  for an  additional
two-year period upon the payment of additional consideration.

Section 16(a) Beneficial Ownership Reporting Compliance

         Section 16(a) of the  Securities  Exchange Act of 1934, as amended (the
"Exchange  Act"),  requires  the  Company's  directors,  executive  officers and
persons who own more than ten  percent of a  registered  class of the  Company's
equity  securities to file with the Securities and Exchange  Commission  initial
reports of  ownership  and reports of changes in  ownership  of Common Stock and
other equity securities of the Company. Officers, directors and greater than ten
percent beneficial owners are required to furnish the Company with copies of all
Section 16(a) forms that they file.

         Based  solely on its review of the copies of such  reports  received or
written  representations  that no  other  reports  were  required,  the  Company
believes  that,  during the fiscal year ended  December 31, 2000,  its officers,
directors and  ten-percent  stockholders  complied with all Section 16(a) filing
requirements applicable to such individuals.

Report of the Compensation Committee

         The Company's  executive  compensation  program is  administered by the
Compensation  Committee (the "Committee"),  which is composed of three directors
who are neither employees nor officers of the Company. The Committee reviews and
approves the salaries and incentive  compensation of the Chief Executive Officer
and the other executive officers of the Company.

         The objectives of the Company's executive  compensation  program are as
follows:

         - provide an  incentive  for the  achievement  of  strategic  goals and
           objectives of the Company;

         - support the pay-for-performance concept by tying executive
           compensation to the Committee's subjective  determination  of the
           quality of  performance  for the preceding fiscal year;

         - attract and retain key executives essential to the  long-term
           success  of the  Company;  and

         -  align  the  executive officers' interests with the long-term
            interests of the stockholders.

         The  Company's  executive   compensation   program  consists  of  three
principal  elements-- base salary, an annual management cash bonus and incentive
stock options.

         Given that the  Company is in the  process of  developing  its  initial
products,  the  Committee  does not believe  that the use of profit  levels as a
measure of the Company's  achievements or as a


                                     - 9 -





basis  for  compensation  decisions  is  appropriate.   However,  the  Committee
considers the ability to control losses without compromising the progress of the
Company's product development programs.

         The Chief Executive  Officer submits for the Committee's  consideration
at the end of the fiscal  year the amount of  proposed  compensation  (following
fiscal year base salary, current fiscal year cash bonus and stock option awards)
for  himself  and  for the  Company's  other  executive  officers.  The  factors
considered by the Chief Executive Officer in making his  recommendations  to the
Committee are the Board of Directors' prior evaluation of the Company's  success
in meeting its strategic  objectives  during the most recent fiscal year and the
Chief  Executive  Officer's  subjective  evaluation of each executive  officer's
individual  performance.  The Committee acts upon the recommendations  made with
respect  to the  executive  officers  after  weighing  the  Board of  Directors'
evaluation  of the  Company's  overall  achievements  for the  year,  the  Chief
Executive   Officer's   discussion  of  each  executive   officer's   individual
performance  for  the  year  and  each  executive  officer's  current  level  of
compensation.  The  Committee  members,  based  upon their  active  professional
involvement with other companies within the Company's industry, are also able to
assess whether proposed compensation levels are in keeping with industry norms.

         The  Committee  applies  the same  criteria  in  evaluating  the  Chief
Executive  Officer's cash  compensation  as that applied to the other  executive
officers of the Company.  The base salary for fiscal 2000 of the  President  and
Chief Executive Officer of the Company was increased by $10,000 to $270,000.  On
December 27, 2000, the  Compensation  Committee  granted Dr. Fraser an option to
purchase  25,000 shares of Common Stock at a per share  exercise  price of $4.69
for his  performance  during the 2000 fiscal year.  The option was granted at an
exercise  price equal to the fair market value of the Company's  Common Stock on
the date of grant  and vests in four  annual  installments  commencing  one year
following  the date of  grant  as long as Dr.  Fraser  remains  employed  by the
Company.  In awarding  this option to Dr.  Fraser,  the  Committee  subjectively
considered the compensation criteria discussed above as well as its interests in
providing incentives for long-term performance, promoting retention of employees
and further  aligning the interests of the Chief Executive  Officer with that of
the stockholders.

         The  Company  does not  believe  that  section  162(m) of the  Internal
Revenue Code of 1986,  as amended,  which  disallows a tax deduction for certain
compensation  in  excess of $1  million,  will  generally  have an effect on the
Company.



By the Compensation Committee of the Board of Directors of Diacrin, Inc.


John W. Littlechild
Stelios Papadopoulos
Henri Termeer


                                     - 10 -





Compensation Committee Interlocks and Insider Participation

     Mr. Termeer,  a member of the Company's Board of Directors and Compensation
Committee,  is President,  Chief Executuve  Officer and Chairman of the Board of
Genzyme.  In September  1996,  the Company  formed a joint  venture with Genzyme
Corporation  to develop and  commercialize  the Company's  NeuroCell(TM)-PD  and
NeuroCell(TM)-HD  products  for  transplantation  into  patients  with  advanced
Parkinson's disease and Huntington's disease,  respectively.  Under the terms of
the joint venture agreement which was effective October 1, 1996,  Genzyme agreed
to provide 100% of the first $10 million in funding and 75% of the following $40
million  in  funding  for  the  development  and  commercialization  of the  two
products.  All costs  incurred in excess of $50 million are to be shared equally
between the Company and Genzyme in accordance  with the terms of the  agreement.
Any profits of the joint venture will be shared equally by the two parties.  The
Company  has  recorded  approximately  $14.5  million in revenue  from the joint
venture since it commenced,  $2,081,795 of which the Company  recognized  during
2000.  Revenues  recognized  from the joint  venture  and  funded by  Genzyme in
accordance  with the  terms of the  joint  venture  agreement  may  represent  a
substantial percentage of the Company's revenues in 2001.

Certain Relationships and Related Transactions

     HCVII,  HCVIII  and HCVIV  owned  17.8%,  5.5% and 1.6% of our  outstanding
capital  stock as of May 31,  2001,  respectively.  HCVII,  HCVIII and HCVIV are
limited  partnerships  which were formed to provide  capital to companies in the
health care fields. HCPII, HCPIII and HCPIV are limited partnerships which serve
as general partner of HCVII, HCVIII and HCVIV, respectively. John Littlechild, a
member of our board of  directors,  is a general  partner  of HCPII,  HCPIII and
HCPIV and Vice Chairman of Healthcare  Vetnures LLC, the management  company for
HCVII,  HCVIII and HCVIV. Mr.  Littlechild is an officer of HealthCare  Ventures
LLC. See "Principal Stockholders."

     Rho  Management  Trust II  ("Rho"),  which  owned  8.9% of our  outstanding
capital stock as of May 31, 2001,  also holds  approximately  18.9% and 54.3% of
the outstanding limited partnerships interests in HCVII and HCVIV, respectively.
An affiliate of Rho is also a limited partner of HCPII, HCPIII and HCPIV. Joshua
Ruch, a member of the board of directors,  is a  controlling  person of Rho. See
"Principal Stockholders."

     Hudson Trust,  which owned 7.5% of our outstanding  capital stock as of May
31, 2001, also holds  approximately  6.0% and 11.9% of the  outstanding  limited
partnership interests of HCVII and HCVIV,  respectively.  Hudson Trust is also a
limited partner of HCPII. See "Principal Stockholders."

Stock Performance Graph

         The following graph compares, for the period commencing August 12, 1996
(the date on which the Company's  Common Stock  commenced  trading on the Nasdaq
Stock Market) and ending on December 31, 2000, the total return of the Company's
Common Stock with the total  return of (i) the Nasdaq  Stock  Market  (U.S.) and
(ii) the Nasdaq Pharmaceuticals Index. This graph assumes the investment of $100
on August 12, 1996 in the Company's  Common Stock and each of the indices listed
above,  and  assumes  dividends  are  reinvested.  The  Company has not paid any
dividends on its Common Stock.


                                     - 11 -






                     COMPARISON OF CUMULATIVE TOTAL RETURN*
              AMONG DIACRIN, INC., THE NASDAQ STOCK MARKET-US INDEX
                      AND THE NASDAQ PHARMACEUTICALS INDEX



(Stock Performance Graph)



                                               Cumulative Total Return
                               ---------------------------------------------------------
                               8/12/96  12/31/96  12/31/97  12/31/98  12/31/99  12/31/00
                                                            
DIACRIN, INC.           DCRN    $100      $141     $140      $ 82      $ 90       $ 69
NASDAQ STOCK MARKET-US  NAS      100       113      139       195       353        219
NASDAQ PHARMACEUTICALS  NAP      100       109      112       144       267        335






         For the  period  from  February  12,  1996 (the  effective  date of the
Company's  initial public  offering)  until August 9, 1996, the Company's  Units
(each of which  consisted  of one share of Common  Stock  and one  Common  Stock
Purchase  Warrant)  traded on the Nasdaq Stock Market.  The trading range of the
Units during this six month period was between $8.00 and $14.75.  The Units were
offered  at $8.00 on  February  12,  1996 and closed at $10.50 on August 9, 1996
(the last trading  date before the Common  Stock and the Common  Stock  Purchase
Warrant began to trade separately).


         PROPOSAL TWO: RATIFICATION OF SELECTION OF INDEPENDENT AUDITORS

         The Board of Directors has selected the firm of Arthur  Andersen LLP as
the Company's  independent auditors for the current fiscal year. Arthur Andersen
LLP has  served  as the  Company's  independent  auditors  since  the  Company's
inception. Although stockholder approval of the Board of Directors' selection of
Arthur Andersen LLP is not required by law, the Board of Directors believes that
it is advisable to give stockholders an opportunity to ratify this selection. If
this proposal is not approved at the Annual Meeting, the Board of Directors will
reconsider its selection of Arthur Andersen LLP.


                                     - 12 -



         Representatives  of Arthur  Andersen  LLP are expected to be present at
the Annual  Meeting to be available  to respond to  appropriate  questions  from
stockholders and to make a statement if they desire to do so.

Report of the Audit Committee

         The Audit  Committee of the Company's Board of Directors is composed of
three  members and acts under a written  charter  first  adopted and approved in
June 2000.  A copy of the Audit  Committee's  charter is  attached to this proxy
statement as Appendix A.

         Prior to June 11, 2001, the Audit  Committee was comprised of Thomas H.
Fraser,  Stelios Papadopoulos and Zola P. Horovitz.  On June 14, 2001, new rules
of the Nasdaq Stock Market governing audit committees became effective. In light
of these new rules, on June 11, 2001, the Board elected Joshua Ruch to the Audit
Committee in place of Dr. Fraser,  the Company's  President and Chief  Executive
Officer, who is not considered "independent" within the meaning of the new rules
of the Nasdaq Stock Market. The three current members of the Audit Committee are
each independent directors, as defined by the rules of the Nasdaq Stock Market.

         At an Audit  Committee  meeting  held on March 2, 2001 (the "March 2001
meeting"),   the  Audit  Committee  reviewed  the  Company's  audited  financial
statements  for the fiscal  year ended  December  31, 2000 and  discussed  these
financial statements with the Company's  management.  At the March 2001 meeting,
the Audit Committee also reviewed and discussed the audited financial statements
and the matters  required by Statement on Auditing  Standards 61  (Communication
with Audit  Committees)  with Arthur  Andersen  LLP, the  Company's  independent
auditors.

         At the March 2001  meeting,  the  Company's  independent  auditors also
provided  the  Audit  Committee  with the  written  disclosures  and the  letter
required  by   Independence   Standards   Board  Standard  No.  1  (Independence
Discussions  with Audit  Committees).  The Audit  Committee  discussed  with the
independent auditors the matters disclosed in this letter and their independence
from the Company.  The Audit Committee also  considered  whether the independent
auditors' provision of the other, non-audit related services to the Company that
are  referred to below under the heading  "Independent  Auditors  Fees and Other
Matters" is compatible with maintaining such auditors' independence.

         Based on its discussions with management and the independent  auditors,
and its review of the representations and information provided by management and
the  independent  auditors,  the  Audit  Committee  at the  March  2001  meeting
recommended  to the  Company's  Board of  Directors  that the audited  financial
statements be included in the Company's  Annual Report on Form 10-K for the year
ended December 31, 2000.



By the Audit Committee of the Board of Directors of Diacrin, Inc.

Thomas H. Fraser (audit  committee  member until June 11, 2001)
Zola P. Horovitz
Stelios Papadopoulos
Joshua Ruch (audit committee member since June 11, 2001)


                                     - 13 -



Independent Auditors Fees and Other Matters

Audit Fees

         Arthur  Andersen LLP billed the Company an aggregate of $45,000 in fees
for professional services rendered in connection with the audit of the Company's
financial  statements  for the most  recent  fiscal  year and the reviews of the
financial statements included in each of the Company's Quarterly Reports on Form
10-Q during the fiscal year ended December 31, 2000.

Financial Information Systems Design and Implementation Fees

         Arthur  Andersen  LLP did not bill  the  Company  for any  professional
services  rendered to the Company for the fiscal year ended December 31, 2000 in
connection  with financial  information  systems design or  implementation,  the
operation of the  Company's  information  system or the  management of its local
area network.

All Other Fees

         Arthur  Andersen LLP billed the Company an aggregate of $50,400 in fees
for other  services  rendered to the Company for the fiscal year ended  December
31, 2000.


                                  OTHER MATTERS

         The Board of  Directors  does not know of any other  matters  which may
come before the Annual  Meeting.  However,  if any other  matters  are  properly
presented to the Annual Meeting, it is the intention of the persons named in the
accompanying  proxy to vote, or otherwise act, in accordance with their judgment
on such matters.

         All costs of solicitation  of proxies will be borne by the Company.  In
addition  to  solicitations  by mail,  the  Company's  directors,  officers  and
employees, without additional remuneration, may solicit proxies by telephone, or
otherwise.  Brokers,  custodians  and  fiduciaries  will be requested to forward
proxy  soliciting  material to the owners of stock held in their names,  and, as
required  by  law,  the  Company  will  reimburse  them  for  their   reasonable
out-of-pocket expenses in this regard.


                                     - 14 -







Proposals for the 2002 Annual Meeting

         In order to be included in proxy  materials for the 2002 Annual Meeting
of Stockholders,  pursuant to Rule 14(a)-8 under the Exchange Act, stockholders'
proposed  resolutions  must be received by the Company at its offices,  Building
96, 13th Street,  Charlestown Navy Yard, Charlestown,  Massachusetts 02129 on or
before  March 2,  2002.  The  Company  suggests  that  proponents  submit  their
proposals  by  certified  mail,  return  receipt  requested,  addressed  to  the
Secretary of the Company.

         If a stockholder of the Company wishes to present a proposal before the
2002 Annual Meeting of Stockholders (other than a proposal to be included in the
proxy statement  pursuant to Rule 14(a)-8 as described in the prior  paragraph),
pursuant to Rule 14(a)-4  under the Exchange  Act,  such  stockholder  must give
written  notice to the Secretary of the Company at the address noted above.  The
Secretary must receive such notice at least 45 days prior to the  anniversary of
the mailing of this year's proxy  materials,  which would be May 15, 2002.  If a
stockholder  fails to provide timely notice of a proposal to be presented at the
2002 Annual  Meeting of  Stockholders,  the proxies  designated  by the Board of
Directors of the Company will have  discretionary  authority to vote on any such
proposal.






                                             By Order of the Board of Directors,




                                             Steven D. Singer, Secretary
June 25, 2001



--------------------------------------------------------------------------------
         THE BOARD OF DIRECTORS HOPES THAT STOCKHOLDERS WILL ATTEND THE MEETING.
WHETHER OR NOT YOU PLAN TO ATTEND,  YOU ARE URGED TO  COMPLETE,  DATE,  SIGN AND
RETURN THE ENCLOSED PROXY IN THE  ACCOMPANYING  ENVELOPE.  PROMPT  RESPONSE WILL
GREATLY  FACILITATE  ARRANGEMENTS  FOR  THE  MEETING  AND  YOUR  COOPERATION  IS
APPRECIATED. STOCKHOLDERS WHO ATTEND THE MEETING MAY VOTE THEIR STOCK PERSONALLY
EVEN THOUGH THEY HAVE SENT IN THEIR PROXIES.
--------------------------------------------------------------------------------

                                     - 15 -







                                                                      Appendix A

                             AUDIT COMMITTEE CHARTER


I.       Membership
A.   Number.  Effective June 14, 2001, the Audit  Committee  shall consist of at
     least  three  independent,  financially  literate  members  of the board of
     directors  meeting  the  requirements  set forth in  Sections  I.B and I.C.
     below.

B.   Independence.  A director is  independent if he or she is not an officer or
     employee  of  the  Company  or  its  subsidiaries,  if he  or  she  has  no
     relationship  which,  in the opinion of the  Company's  board of directors,
     would  interfere  with  his or her  exercise  of  independent  judgment  in
     carrying out the responsibilities of a director, and if he or she:

     1.   Has not  been an  employee  of the  Company  or any  affiliate  of the
          Company in the current year or in any of the past three years;

     2.   Has no immediate family member who has been employed by the Company or
          an  affiliate  of the  Company  in any of the  past  three  years  (an
          immediate family member includes a person's spouse, parents, children,
          siblings, mother-in-law, father-in-law, brother-in-law, sister-in-law,
          son-in-law,  daughter-in-law,  and  anyone  who  resides in a person's
          home);

     3.   Is not  employed as an  executive  of an entity other than the Company
          having a  compensation  committee  which includes any of the Company's
          executives;

     4.   Did not within the last  fiscal year  receive  from the Company or any
          affiliate of the Company  compensation  -- other than benefits under a
          tax qualified  retirement  plan,  compensation for director service or
          nondiscretionary compensation -- greater than $60,000; and

     5.   Has  not in any of  the  past  three  years  been  a  partner  in,  or
          controlling  shareholder  or  executive  of,  a  for  profit  business
          organization  to which the  Company  made or from  which  the  Company
          received  payment (other than payment arising solely from  investments
          in  the  Company's  securities)  that  exceeds  the  greater  of:  (i)
          $200,000;   or  (ii)  more  than  5%  of  the  Company's  or  business
          organization's consolidated gross revenues.


     Under  exceptional  and  limited  circumstances,  one  director  who  has a
relationship  making  him or  her  not  independent,  and  who is not a  Company
employee or an immediate family member of a Company  employee,  may serve on the
Audit  Committee  if the  board of  directors  determines  that  the  director's
membership  on the Audit  Committee  is  required by the best  interests  of the
Company and its  shareholders,  and discloses in the next annual proxy statement
after such  determination the nature of the relationship and the reasons for the
determination.

                                     - 16 -




C.   Financial Literacy. Each member of the Audit Committee must be able to read
     and understand  fundamental financial  statements,  including the Company's
     balance sheet,  income statement,  and cash flow statement,  or must become
     able to do so within a reasonable  time after his or her appointment to the
     Audit Committee.  At least one member of the Audit Committee must have past
     employment experience in finance or accounting,  professional certification
     in accounting, or other comparable experience or background which result in
     the member having financial  sophistication (such as being or having been a
     chief executive  officer,  chief financial  officer or other senior officer
     with financial oversight responsibilities).

D.   Chairman. Unless a Chairman is elected by the board of directors, the Audit
     Committee shall elect a Chairman by majority vote.


II.      Responsibilities of the Audit Committee


         The Audit  Committee  shall assist the board of directors in fulfilling
their  responsibilities to shareholders  concerning the Company's accounting and
reporting practices,  and shall facilitate open communication  between the Audit
Committee,  board of directors,  outside  auditors,  and  management.  The Audit
Committee shall discharge its responsibilities, and shall assess the information
provided by the Company's management and the outside auditor, in accordance with
its business judgment.  The  responsibilities set forth herein do not reflect or
create any duty or obligation of the Audit Committee to plan,  conduct,  oversee
or  determine  the  appropriate  scope of any audit,  or to  determine  that the
Company's financial statements are complete,  accurate,  fairly presented, or in
accordance with Generally Accepted  Accounting  Principles or applicable law. In
exercising  its  business  judgment,  the  Audit  Committee  shall  rely  on the
information and advice provided by the Company's  management  and/or its outside
auditor.



A.   The Audit  Committee shall review and reassess the adequacy of this charter
     at least annually.

B.   The outside  auditor shall be  accountable  to the Audit  Committee and the
     board of directors,  which together  shall have the ultimate  authority and
     responsibility   to  nominate  the  outside  auditor  to  be  proposed  for
     shareholder approval in any proxy statement,  and to select,  evaluate, and
     (where appropriate) replace the outside auditor.

C.   The Audit Committee shall ensure that they receive from the outside auditor
     the written  disclosures  and letter from the outside  auditor  required by
     Independence Standards Board Standard No. 1.

D.   The  Audit   Committee   shall   discuss  with  the  outside   auditor  its
     independence,  and shall  actively  engage in a dialogue  with the  outside
     auditor regarding any disclosed relationships or services that might impact
     the objectivity and independence of the auditor.  The Audit Committee shall
     take,  or  recommend  that the full board of  directors  take,  appropriate
     action to oversee the independence of the outside auditor.

                                     - 17 -



E.   The Audit Committee shall review and discuss with the Company's  management
     the Company's audited financial statements.

F.   The Audit  Committee  shall  discuss  with the outside  auditor the matters
     about which Statement on Auditing Standards No. 61 requires discussion.

G.   Based upon its discharge of its responsibilities  pursuant to Sections II.C
     through II.F and any other  information,  discussion or communication  that
     the Audit  Committee in its business  judgment  deems  relevant,  the Audit
     Committee  shall  consider  whether  they  will  recommend  to the board of
     directors that the Company's  audited  financial  statements be included in
     the Company's annual reports on Forms 10-K.

H.   The Audit  Committee shall prepare for inclusion where necessary in a proxy
     or  information  statement of the Company  relating to an annual meeting of
     security  holders at which  directors are to be elected (or special meeting
     or written consents in lieu of such meeting),  the report described in Item
     306 of Regulation S-K.

I.   The  Audit  Committee  shall  annually  inform  the  outside  auditor,  the
     Controller, the Chief Financial Officer (if any), and the most senior other
     person (if any)  responsible for the internal audit  activities,  that they
     should  promptly  contact the Audit  Committee  or its  Chairman  about any
     significant  issue or  disagreement  concerning  the  Company's  accounting
     practices   or  financial   statements   that  is  not  resolved  to  their
     satisfaction. Where such communications are made to the Chairman, he or she
     shall confer with the outside auditor  concerning any such  communications,
     and  shall  notify  the  other  members  of  the  Audit  Committee  of  any
     communications which the outside auditor or the Chairman in the exercise of
     his or her business  judgment  believes  should be  considered by the Audit
     Committee prior to its next scheduled meeting.

J.   The Audit  Committee  shall  direct  the  outside  auditor  to use its best
     efforts to perform all reviews of interim  financial  information  prior to
     disclosure by the Company of such information, and to discuss promptly with
     the Chairman of the Audit  Committee,  the Controller  and Chief  Financial
     Officer (if any) any matters  identified in  connection  with the auditor's
     review of interim financial  information which are required to be discussed
     by  Statement  on  Auditing  Standards  No. 61. The  Chairman  of the Audit
     Committee  shall  discuss any such  matters with the outside  auditor,  and
     shall notify the other  members of the Audit  Committee of any  discussions
     which the outside  auditor or the  Chairman  in the  exercise of his or her
     business  judgment  believes  should be considered  by the Audit  Committee
     prior to disclosure or filing of the interim financial information,  or the
     Audit Committee's next scheduled meeting.

K.   The Audit Committee  shall direct  management to advise the Audit Committee
     in the  event  that  the  Company  proposes  to  disclose  or file  interim
     financial information prior to completion of review by the outside auditor.

L.   The Audit  Committee  shall meet privately at least once per year with: (i)
     the outside auditor; (ii) the Controller; (iii) the Chief Financial Officer
     (if any);  and (iv) the most  senior  person (if any)  responsible  for the
     internal audit activities of the Company.

                                     - 18 -





                                                                      Appendix B



PROXY
                                  DIACRIN, INC.
                  PROXY FOR THE ANNUAL MEETING OF STOCKHOLDERS
                            To be held July 31, 2001

   THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF THE COMPANY

The undersigned,  having received notice of the meeting and  management's  proxy
statement therefor, and revoking all prior proxies,  hereby appoint(s) Thomas H.
Fraser,  Kevin Kerrigan and Steven D. Singer,  and each of them, with full power
of  substitution,  as proxies to  represent  and vote as  designated  herein all
shares of stock of Diacrin,  Inc. (the "Company") which the undersigned would be
entitled to vote if personally  present at the Annual Meeting of Stockholders of
the  Company to be held at the  offices of Hale and Dorr LLP,  60 State  Street,
Boston,  MA 02109 on Tuesday,  July 31, 2001 at 10:00 a.m.,  local time, and at
any adjournment thereof.

In their discretion,  the proxies are authorized to vote upon such other matters
as may properly come before the meeting or any adjournment thereof.

THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED HEREIN BY
THE UNDERSIGNED STOCKHOLDER.  IF NO DIRECTION IS GIVEN, THIS PROXY WILL BE VOTED
FOR PROPOSALS 1, 2 AND 3. ANY PROXY MAY BE REVOKED BY A STOCKHOLDER  AT ANY TIME
BEFORE ITS EXERCISE BY DELIVERY OF A WRITTEN  REVOCATION OR A SUBSEQUENTLY DATED
PROXY TO THE  SECRETARY  OF THE  COMPANY  OR BY VOTING  IN PERSON AT THE  ANNUAL
MEETING.  WHETHER OR NOT YOU PLAN TO ATTEND THE ANNUAL MEETING, YOU ARE URGED TO
COMPLETE, DATE, SIGN AND RETURN THIS PROXY IN THE ACCOMPANYING ENVELOPE.

1. Election of Directors                 Nominees:         Thomas H. Fraser
[   ]             FOR all nominees                         Zola P. Horovitz
                  (except as marked below)                 John W. Littlechild
                                                           Stelios Papadopoulos
[   ]             WITHHELD from all nominees               Joshua Ruch
                                                           Henri A. Termeer

INSTRUCTIONS:  To withhold authority to vote for individual monimee(s), mark the
box labeled "FOR" and strike a line through such  nominee(s) name in the list at
right.

2.   To ratify  the  selection  of Arthur  Andersen  LLP as the  Company's
     independent auditors for fiscal 2001.
               For  [  ]   Against  [  ]   Abstain  [  ]

3.   To transact such other  business as may properly come before the meeting or
     any adjournment thereof.
               For  [  ]   Against  [  ]   Abstain  [  ]


Signature________________________________    Date ___________________

Signature________________________________    Date ___________________

NOTE: Please sign exactly as name appears hereon.  When shares are held by joint
owners,  both should sign.  When signing as attorney,  executor,  administrator,
trustee or guardian  please give full title as such.  If a  corporation,  please
sign in full  corporate  name by President  or other  authorized  officer.  If a
partnership, please sign in partnership name by authorized person.