Abstract:
:Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) is a member of the TNF superfamily that exhibits specific tumoricidal activity against a variety of tumors. It is expressed on different cells of the immune system and plays a role in natural killer cell-mediated tumor surveillance. In allogeneic hematopoietic-cell transplantation, the reactivity of the donor T cell against malignant cells is essential for the graft-versus-tumor (GVT) effect. Cytolytic activity of T cells is primarily mediated through the Fas-Fas ligand and perforin-granzyme pathways. However, T cells deficient for both Fas ligand and perforin can still exert GVT activity in vivo in mouse models. To uncover a potential role for TRAIL in donor T cell-mediated GVT activity, we compared donor T cells from TRAIL-deficient and wild-type mice in clinically relevant mouse bone-marrow transplantation models. We found that alloreactive T cells can express TRAIL, but the absence of TRAIL had no effect on their proliferative and cytokine response to alloantigens. TRAIL-deficient T cells showed significantly lower GVT activity than did TRAIL-expressing T cells, but no important differences in graft-versus-host disease, a major complication of allogeneic hematopoietic cell transplantation, were observed. These data suggest that strategies to enhance TRAIL-mediated GVT activity could decrease relapse rates of malignancies after hematopoietic cell transplantation without exacerbation of graft-versus-host disease.
journal_name
Nat Medjournal_title
Nature medicineauthors
Schmaltz C,Alpdogan O,Kappel BJ,Muriglan SJ,Rotolo JA,Ongchin J,Willis LM,Greenberg AS,Eng JM,Crawford JM,Murphy GF,Yagita H,Walczak H,Peschon JJ,van den Brink MRdoi
10.1038/nm1202-797keywords:
subject
Has Abstractpub_date
2002-12-01 00:00:00pages
1433-7issue
12eissn
1078-8956issn
1546-170Xpii
nm797journal_volume
8pub_type
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