ADVISORY, May 24, 2013 (GLOBE NEWSWIRE) -- What: Opexa Therapeutics, Inc. [OPXA], a biotechnology company developing Tcelna TM, a patient specific T-cell immunotherapy for the treatment of multiple sclerosis (MS), will visit the NASDAQ MarketSite in Times Square. In honor of World MS Day, Neil K. Warma, President & Chief Executive Officer will ring the Closing Bell. Where: NASDAQ MarketSite – 4 Times Square – 43 rd & Broadway – Broadcast Studio When: Tuesday, May 28, 2013 – 3:45 p.m. to 4:00 p.m. ET Contact : Camilla Zuckero (281) 775-0609 email@example.com NASDAQ MarketSite: Christine Barna (646) 441-5310 Christine.Barna@nasdaqomx.com Feed Information: Fiber Line (Encompass Waterfront): 4463 Gal 3C/06C 95.05 degrees West 18 mhz Lower DL 3811 Vertical FEC 3/4 SR 13.235 DR 18.295411 MOD 4:2:0 DVBS QPSK Facebook and Twitter: For multimedia features such as exclusive content, photo postings, status updates and video of bell ceremonies please visit our Facebook page at: http://www.facebook.com/NASDAQ . For news tweets, please visit our Twitter page at: http://twitter.com/nasdaqomx . Webcast: A live webcast of the NASDAQ Closing Bell will be available at: http://www.nasdaq.com/about/marketsitetowervideo.asx . Photos: To obtain a hi-resolution photograph of the Market Close, please go to http://www.nasdaq.com/reference/marketsite_events.stm and click on the market close of your choice. About Opexa Therapeutics, Inc. [OPXA]: Opexa's mission is to lead the field of Precision Immunotherapy™ by aligning the interests of patients, employees and share holders. The Company's leading therapy candidate, Tcelna™, is a personalized T-cell immunotherapy that is in a Phase IIb clinical development program (the Abili-T trial) for the treatment of Secondary Progressive Multiple Sclerosis. Tcelna is derived from T-cells isolated from the patient's peripheral blood, expanded ex vivo, and reintroduced into the patients via subcutaneous injections. This process triggers a potent immune response against specific subsets of autoreactive T-cells known to attack myelin.