 CLEVELAND--BUSINESS WIRE--Athersys, Inc. NASDAQ: ATHX, a regenerative medicine company developing MultiStem invimestrocel for critical care indications, announced today their participation in two October conferences, the 2022 Cell Gene Meeting on the Mesa on October 11-13, 2022 and the 14th World Stroke Congress on October 26-29, 2022. Dr. Robert W. Mays, Executive Vice President and Head of Regenerative Medicine Neuroscience, will present live at the 2022 Cell Gene Mee 