Cohen completed his medical studies at Washington University (St Louis). Postdoctoral studies were at the University of Chicago, the NIH and the
University of Colorado. He has been a member of the faculty of Rutgers University, the University of Chicago and, most recently, the University
of Illinois. Cohen has published more than 135 peer-reviewed papers, in the field of tumor immunology, numerous reviews and book chapters.
Currently, Cohen is the CEO of Immune Cell Therapy, Inc., a tumor vaccine company