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Signal-transducing adaptor protein-2 modulates T-cell functions

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Title: Signal-transducing adaptor protein-2 modulates T-cell functions
Authors: Matsuda, Tadashi Browse this author →KAKEN DB
Sasaki, Yuto Browse this author
Kagohashi, Kota Browse this author
Saitoh, Kodai Browse this author
Sekine, Yuichi Browse this author →KAKEN DB
Kashiwakura, Jun-Ichi Browse this author →KAKEN DB
Oritani, Kenji Browse this author →KAKEN DB
Keywords: Signal-transducing adaptor protein
adaptor protein
signal transduction
immune response
chimeric antigen receptor T-cells
Issue Date: 27-Dec-2022
Publisher: Open Exploration
Journal Title: Exploration of Immunology
Volume: 2022
Issue: 2
Start Page: 771
End Page: 782
Publisher DOI: 10.37349/ei.2022.00082
Abstract: Immune responses are orchestrated by controlling the initiation, magnitude, and duration of various signaling pathways. Adaptor proteins act as positive or negative regulators by targeting critical molecules of signaling cascades. Signal-transducing adaptor protein-2 (STAP-2) contains typical features of adaptor proteins, like a pleckstrin homology (PH) domain in the N-terminal region and a Src homology 2 (SH2) domain in the central region. STAP-2 binds to a variety of signaling or transcriptional molecules to control multiple steps of inflammatory/immune responses. STAP-2 enhances T-cell receptor (TCR)-mediated signaling via the association with TCR-proximal CD3ζ immunoreceptor tyrosine-based activation motifs (ITAMs) and lymphocyte-specific protein tyrosine kinase (Lck). STAP-2 decreases adherence of T-cells to fibronectin (FN) through an association with focal adhesion kinase (Fak) and Casitas B-lineage Lymphoma (c-Cbl), and increases chemotaxis of T-cells toward stromal cell-derived factor-1α (SDF-1α) through interactions with Vav1 and Ras-related C3 botulinum toxin substrate 1 (Rac1). STAP-2 positively regulates activation-induced cell deathrough the association with Fas and caspase-8. This review describes the current knowledge of the roles of STAP-2 in T-cell-dependent immune responses and the possible clinical utility of STAP-2-targeting therapies.
Type: article
Appears in Collections:薬学研究院 (Faculty of Pharmaceutical Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 松田 正

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