CHIMERISM BACKGROUND

Pittsburgh, Dec. 18, 1998--Chimerism—the coexistence of donor and
recipient cells—is a major theme of scientific investigation at the University
of Pittsburgh Medical Center’s (UPMC) Thomas E. Starzl Transplantation
Institute. Under the direction of Thomas E. Starzl, M.D., Ph.D., research in
this area has offered significant contributions to the understanding of
transplant immunology. Having laid this groundwork, researchers are
continuing to work toward more scientific and clinical advancement.