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Título: | Therapeutic implications of NK cell regulation of allogeneic CD8 T cell-mediated immune responses stimulated through the direct pathway of antigen presentation in transplantation |
Autor: | Rodríguez Barbosa, J. I.; Ferreras, Mª del Carmen CSIC ORCID ; Buhler, L.; Jones, N. D.; Sneider, P.; Pérez Simón, J. A.; Del Río, María Luisa | Palabras clave: | NK cells CD8 T cells Bm1 MHC class I skin graft Transplantation Graft rejection |
Fecha de publicación: | 2018 | Editor: | Taylor & Francis | Citación: | MABS, 10 (7): 1030-1044 (2018) | Resumen: | Natural killer (NK) cells are a population of innate type I lymphoid cells essential for early anti-viral responses and are known to modulate the course of humoral and cellular-mediated T cell responses. We assessed the role of NK cells in allogeneic CD8T cell-mediated responses in an immunocompetent mouse model across an MHC class I histocompatibility barrier to determine its impact in therapeutic clinical interventions with polyclonal or monoclonal antibodies (mAbs) targeting lymphoid cells in transplantation. The administration of an NK cell depleting antibody to either CD8T cell replete or CD8T cell-depleted naive C57BL/6 immunocompetent mice accelerated graft rejection. This accelerated rejection response was associated with an in vivo increased cytotoxic activity of CD8T cells against bm1 allogeneic hematopoietic cells and bm1 skin allografts. These findings show that NK cells were implicated in the control host anti-donor cytotoxic responses, likely by competing for common cell growth factors in both CD8T cell replete and CD8T cell-depleted mice, the latter reconstituting in response to lymphopenia. Our data calls for precaution in solid organ transplantation under tolerogenic protocols involving extensive depletion of lymphocytes. These pharmacological biologics with depleting properties over NK cells may accelerate graft rejection and promote aggressive CD8T cell cytotoxic alloresponses refractory to current immunosuppression. | Descripción: | 16 páginas, 7 figuras. | Versión del editor: | http://dx.doi.org/10.1080/19420862.2018.1502127 | URI: | http://hdl.handle.net/10261/174799 | DOI: | 10.1080/19420862.2018.1502127 | ISSN: | 1942-0862 | E-ISSN: | 1942-0870 |
Aparece en las colecciones: | (IGM) Artículos |
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