2594: In vitro and in vivo characterization of human hematopoietic chimeric cells - A novel strategy to induce tolerance in transplantation

2594: In vitro and in vivo characterization of human hematopoietic chimeric cells A novel strategy to induce tolerance in transplantation Ewa Bryndza Tfaily, PhD, Malgorzata Cyran, MD, Rafal Gendek, MD, PhD, Erzsebet Szilagyi, MD, PhD, Jason Le, MD, Anna Domaszewska-Szostek, PhD, Joanna Cwykiel, MSc, and Maria Siemionow, MD, PhD, DSc University of Illinois at Chicago, Chicago, IL, USA; Polish Academy of Science, Warszawa, Poland Background Cell-based therapies represent a new promising approach for tolerance induction in transplantation One of the methods for immune response modulation in solid organ and vascularized composite allograft (VCA) recipients is donor bone marrow (BM) transplantation We propose a new cellular therapy based on application of the ex vivo created donor-recipient chimeric cells as an alternative approach to BM-based therapies in support of solid organ and VCA transplantation The aim of this study was further characterization of human hematopoietic chimeric cells (HHCC).