Attached files
Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the reference to our firm under the caption Experts and to the use of our report dated December 23, 2009 in the Registration Statement (Form S-1 No. 333-00000) and the related Prospectus of Tengion, Inc. for the registration of 000,000 shares of its common stock.
/s/ ERNST & YOUNG LLP
Philadelphia, Pennsylvania
December 23, 2009