Attached files

file filename
EXCEL - IDEA: XBRL DOCUMENT - OSIRIS THERAPEUTICS, INC.Financial_Report.xls
10-K - 10-K - OSIRIS THERAPEUTICS, INC.a2223659z10-k.htm
EX-10.7 - EX-10.7 - OSIRIS THERAPEUTICS, INC.a2223659zex-10_7.htm
EX-10.9 - EX-10.9 - OSIRIS THERAPEUTICS, INC.a2223659zex-10_9.htm
EX-31.1.1 - EX-31.1.1 - OSIRIS THERAPEUTICS, INC.a2223659zex-31_11.htm
EX-32.1.1 - EX-32.1.1 - OSIRIS THERAPEUTICS, INC.a2223659zex-32_11.htm
EX-31.2.1 - EX-31.2.1 - OSIRIS THERAPEUTICS, INC.a2223659zex-31_21.htm

QuickLinks -- Click here to rapidly navigate through this document


Exhibit 23.1.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Osiris Therapeutics, Inc.
Columbia, Maryland

        We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-148750) and Forms S-8 (No. 333-167652, 333-137953, 333-184838 and 333-199132) of Osiris Therapeutics, Inc. of our reports dated March 20, 2015, relating to the financial statements and financial statement schedule, and the effectiveness of Osiris Therapeutics, Inc.'s internal control over financial reporting, which appear in this Form 10-K.

/s/ BDO USA, LLP

Bethesda, Maryland
March 20, 2015




QuickLinks

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM