RT Book, Section A1 Thompson, Philip A. A1 Rezvani, Katayoun A1 Kebriaei, Partow A2 Kantarjian, Hagop M. A2 Wolff, Robert A. SR Print(0) ID 1126741412 T1 Cellular Therapy in Allogeneic Hematopoietic Cell Transplantation T2 The MD Anderson Manual of Medical Oncology, 3e YR 2016 FD 2016 PB McGraw-Hill Medical PP New York, NY SN 9780071847940 LK accessmedicine.mhmedical.com/content.aspx?aid=1126741412 RD 2024/04/20 AB The efficacy of allogeneic hematopoietic cell transplantation (HCT) in hematologic malignancies can in large part be attributed to a graft-versus-tumor (GVT) effect, by which the donor immune system achieves immunologic control of the tumor. As such, it is the prototype of cellular therapy. The human leukocyte antigen (HLA) system is fundamental to transplant biology. The HLAs are highly polymorphic proteins that have a key role in antigen presentation and immunoregulation. Class I HLAs are expressed on the surfaces of all nucleated cells; class II are expressed on specialized antigen-presenting cells (APCs), such as macrophages, dendritic cells, and B cells.