THE WOODLANDS, Texas--(BUSINESS WIRE)--Opexa Therapeutics, Inc. (NASDAQ: OPXA), a company developing Tovaxin®, a personalized T-cell immunotherapy for multiple sclerosis (MS), today announced that Neil K. Warma, Opexa’s President and Chief Executive Officer, is the invited Keynote speaker at the 6th annual Cell Therapy Conference to be held in Beijing, China February 25-26, 2011.