MOUNTAIN VIEW, Calif., June 7, 2012 (GLOBE NEWSWIRE) -- ChemoCentryx, Inc. (Nasdaq:CCXI) announced today that James L. Tyree has been appointed to the Company’s Board of Directors, effective immediately and that it has increased the size of its board from six to seven. Mr. Tyree is a former Executive Vice President of Abbott Laboratories and brings to the ChemoCentryx Board extensive senior leadership and operational experience in the pharmaceutical and biotechnology industries.