Anti-ICOS mAb Targets Pathogenic IL-17A-expressing Cells in Canine Model of Chronic GVHD
- 1 May 2021
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Transplantation
- Vol. 105 (5), 1008-1016
- https://doi.org/10.1097/tp.0000000000003489
Abstract
Background: Chronic graft-versus-host disease (GVHD) is a significant cause of morbidity and mortality in transplant patients. We have previously shown that 3 doses of an anti-ICOS mAb transiently ameliorated symptoms and extended survival of dogs affected by chronic GVHD over that of control dogs. The purpose of this study was to specifically correlate changes in T-cell populations in the peripheral blood with anti-ICOS treatment and chronic GVHD progression and regression in order to reach a better understanding of the mechanism of the disease and prioritize future studies. Methods: Peripheral blood cells from canines transplanted with DLA-mismatched bone marrow and PBMC to generate chronic GVHD were analyzed by flow cytometry using a panel of antibodies specific to helper and cytolytic T cells. Results: Chronic GVHD was specifically associated with an increase in CD4+ICOS+ cells, ICOS+ cells expressing IL-17A, and CD8+ cells generating granzyme B. Treatment with anti-ICOS mAb at onset of chronic GVHD symptoms specifically targeted IL-17A+-expressing cells, transiently relieved symptoms, and lengthened survival but was unable to reduce the percentage of CD8+ T-cells expressing granzyme B. Conclusions: These studies suggested a role for both CD4+ and CD8+ T cells in pathogenesis of chronic GVHD in the canine model. We propose that future studies should focus on further extending survival by developing a treatment that would control both CD4+ and CD8+ T cells.This publication has 41 references indexed in Scilit:
- Decreased Levels of Circulating IL17-Producing CD161+CCR6+ T Cells Are Associated with Graft-versus-Host Disease after Allogeneic Stem Cell TransplantationPLOS ONE, 2012
- A Distinct Role of CD4+ Th17- and Th17-Stimulated CD8+ CTL in the Pathogenesis of Type 1 Diabetes and Experimental Autoimmune EncephalomyelitisJournal of Clinical Immunology, 2011
- Cutaneous GVHD is associated with the expansion of tissue-localized Th1 and not Th17 cellsBlood, 2010
- The Inducible Costimulator (ICOS) Is Critical for the Development of Human T H 17 CellsScience Translational Medicine, 2010
- Th17/Treg ratio in human graft-versus-host diseaseBlood, 2010
- Insufficient evidence for association of NOD2/CARD15 or other inflammatory bowel disease–associated markers on GVHD incidence or other adverse outcomes in T-replete, unrelated donor transplantationBlood, 2010
- In vitro–differentiated TH17 cells mediate lethal acute graft-versus-host disease with severe cutaneous and pulmonary pathologic manifestationsBlood, 2009
- IL-17 contributes to CD4-mediated graft-versus-host diseaseBlood, 2009
- STAT-3 and ERK 1/2 phosphorylation are critical for T-cell alloactivation and graft-versus-host diseaseBlood, 2008
- Relation of an interleukin-23 receptor gene polymorphism to graft-versus-host disease after hematopoietic-cell transplantationBone Marrow Transplantation, 2008