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                                                                   EXHIBIT 23.2

         CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


We hereby consent to the use in this Amendment No. 5 to the Registration
Statement on Form S-1 of our report dated April 27, 2004, relating to the
financial statements of TolerRx, Inc., which appears in such Registration
Statement. We also consent to the reference to us under the heading "Experts"
in such Registration Statement.

/s/ PricewaterhouseCoopers LLP

Boston, Massachusetts
June 10, 2004