Exhibit 23.1
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Consent of Independent Registered Public Accounting Firm
The Board of Directors
Aptose Biosciences Inc:
We consent to the use of our report dated July 29, 2014, with respect to the consolidated balance sheets of Aptose Biosciences Inc. as at May 31, 2014 and 2013, and the related consolidated statements of loss and comprehensive loss, changes in shareholders’ equity and cash flows for each of the years in the three-year period ended May 31, 2014, and notes, comprising a summary of significant accounting policies and other explanatory information, incorporated herein by reference and to the reference to our firm under the heading "Experts" in the prospectus.
Chartered Professional Accountants, Licensed Public Accountants
December 1, 2014
Toronto, Canada
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