Abstract
TNF receptor superfamily comprises many T-cell costimulatory receptors, including TNFRSF1, TNFRSF2, TNFRSF4 (OX40), TNFRSF9 (4-1BB), TNFRSF18 (GITR), and TNFRSF7 (CD27). Signaling through these costimulatory stimulatory receptors can promote conventional T-cell (Tconv) proliferation, and effector functions in an antigen-dependent manner. Thus, agonistic antibodies and ligands for OX40, 4-1BB, GITR, and CD27 have been tested for inducing T-cell-mediated antitumor responses in several cancers. However, recently emerging reports show critical role for TNFR signaling in regulatory T-cell (Treg) differentiation and expansion, which might suppress effector T-cell proliferation and functions. Here, we show preferential over expression of TNFR2, OX40, 4-1BB, and GITR in Treg cells over Tconv cells, and the ability of OX40L and GITRL to induce selective proliferation of Treg cells, but not Tconv cells, in an antigen-independent manner. We describe the standard protocols used for Affymetrix gene expression profiling, T-cell isolation, and Cell Trace Violet-based cell proliferation assay.
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Kumar, P., Arbieva, Z.H., Maienschein-Cline, M., Ganesh, B.B., Ramasamy, S., Prabhakar, B.S. (2021). Induction of Antigen-Independent Proliferation of Regulatory T-Cells by TNF Superfamily Ligands OX40L and GITRL. In: Bayry, J. (eds) The TNF Superfamily. Methods in Molecular Biology, vol 2248. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-1130-2_4
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DOI: https://doi.org/10.1007/978-1-0716-1130-2_4
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Publisher Name: Humana, New York, NY
Print ISBN: 978-1-0716-1129-6
Online ISBN: 978-1-0716-1130-2
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