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OverviewNasopharyngeal carcinomas (NPC) are human epithelial tumors constantly associated with the Epstein-Barr virus. However it was known that these cells were producing in vitro exosomes carrying the galectin 9 protein. Galectin 9 is an agonist of the Tim-3 receptor, a pro-apoptotic receptor carried by the mature CD4 + Th1 lymphocytes. Our data show that NPC exosomes carrying galectin 9 behave as agonists of the Tim-3 receptor. They are selectively detected in the plasma of xenografted mice or patients with NPC. In vitro they induce massive apoptosis of cells derived from CD4 + Th1 lymphocyte clones expressing Tim-3 and used as a model of cellular targets. This effect is inhibited by pre-incubating either the target cells with an anti-Tim-3 blocking antibody or the exosomes with an anti-galectin 9 antibody. Overall, our work suggests that NPC exosomes carrying galectin 9 play an important role as a factor of immunosuppression in NPC patients. Patient treatment with anti-galectin 9 antibodies might be beneficial in combination with some protocols of adoptive immunotherapy. Full Product DetailsAuthor: Klibi JihenePublisher: Editions Universitaires Europeennes Imprint: Editions Universitaires Europeennes Dimensions: Width: 22.90cm , Height: 0.80cm , Length: 15.20cm Weight: 0.209kg ISBN: 9786131544248ISBN 10: 6131544247 Pages: 136 Publication Date: 03 November 2010 Audience: General/trade , General Format: Paperback Publisher's Status: Active Availability: In Print  This item will be ordered in for you from one of our suppliers. Upon receipt, we will promptly dispatch it out to you. For in store availability, please contact us. Table of ContentsReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |
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