PMID- 26116513 OWN - NLM STAT- MEDLINE DCOM- 20151026 LR - 20211203 IS - 1550-6606 (Electronic) IS - 0022-1767 (Print) IS - 0022-1767 (Linking) VI - 195 IP - 3 DP - 2015 Aug 1 TI - mTOR Complex Signaling through the SEMA4A-Plexin B2 Axis Is Required for Optimal Activation and Differentiation of CD8+ T Cells. PG - 934-43 LID - 10.4049/jimmunol.1403038 [doi] AB - Mammalian target of rapamycin (mTOR) plays crucial roles in activation and differentiation of diverse types of immune cells. Although several lines of evidence have demonstrated the importance of mTOR-mediated signals in CD4(+) T cell responses, the involvement of mTOR in CD8(+) T cell responses is not fully understood. In this study, we show that a class IV semaphorin, SEMA4A, regulates CD8(+) T cell activation and differentiation through activation of mTOR complex (mTORC) 1. SEMA4A(-/-) CD8(+) T cells exhibited impairments in production of IFN-gamma and TNF-alpha and induction of the effector molecules granzyme B, perforin, and FAS-L. Upon infection with OVA-expressing Listeria monocytogenes, pathogen-specific effector CD8(+) T cell responses were significantly impaired in SEMA4A(-/-) mice. Furthermore, SEMA4A(-/-) CD8(+) T cells exhibited reduced mTORC1 activity and elevated mTORC2 activity, suggesting that SEMA4A is required for optimal activation of mTORC1 in CD8(+) T cells. IFN-gamma production and mTORC1 activity in SEMA4A(-/-) CD8(+) T cells were restored by administration of recombinant Sema4A protein. In addition, we show that plexin B2 is a functional receptor of SEMA4A in CD8(+) T cells. Collectively, these results not only demonstrate the role of SEMA4A in CD8(+) T cells, but also reveal a novel link between a semaphorin and mTOR signaling. CI - Copyright (c) 2015 by The American Association of Immunologists, Inc. FAU - Ito, Daisuke AU - Ito D AD - Department of Immunopathology, World Premier International Research Center, Immunology Frontier Research Center, Osaka University, Suita City, Osaka 565-0871, Japan; Department of Geriatric Medicine and Nephrology, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; Department of Respiratory Medicine, Allergy, and Rheumatic Disease, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Suita City, Osaka 565-0871, Japan; FAU - Nojima, Satoshi AU - Nojima S AD - Department of Immunopathology, World Premier International Research Center, Immunology Frontier Research Center, Osaka University, Suita City, Osaka 565-0871, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Suita City, Osaka 565-0871, Japan; Department of Pathology, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; s_nojima@molpath.med.osaka-u.ac.jp kumanogo@imed3.med.osaka-u.ac.jp. FAU - Nishide, Masayuki AU - Nishide M AD - Department of Immunopathology, World Premier International Research Center, Immunology Frontier Research Center, Osaka University, Suita City, Osaka 565-0871, Japan; Department of Respiratory Medicine, Allergy, and Rheumatic Disease, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Suita City, Osaka 565-0871, Japan; FAU - Okuno, Tatsusada AU - Okuno T AD - Department of Immunopathology, World Premier International Research Center, Immunology Frontier Research Center, Osaka University, Suita City, Osaka 565-0871, Japan; Department of Neurology, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; FAU - Takamatsu, Hyota AU - Takamatsu H AD - Department of Immunopathology, World Premier International Research Center, Immunology Frontier Research Center, Osaka University, Suita City, Osaka 565-0871, Japan; Department of Respiratory Medicine, Allergy, and Rheumatic Disease, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Suita City, Osaka 565-0871, Japan; FAU - Kang, Sujin AU - Kang S AD - Department of Immunopathology, World Premier International Research Center, Immunology Frontier Research Center, Osaka University, Suita City, Osaka 565-0871, Japan; Department of Respiratory Medicine, Allergy, and Rheumatic Disease, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Suita City, Osaka 565-0871, Japan; Department of Clinical Application of Biologics, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; FAU - Kimura, Tetsuya AU - Kimura T AD - Department of Immunopathology, World Premier International Research Center, Immunology Frontier Research Center, Osaka University, Suita City, Osaka 565-0871, Japan; Department of Respiratory Medicine, Allergy, and Rheumatic Disease, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Suita City, Osaka 565-0871, Japan; FAU - Yoshida, Yuji AU - Yoshida Y AD - Department of Immunopathology, World Premier International Research Center, Immunology Frontier Research Center, Osaka University, Suita City, Osaka 565-0871, Japan; Department of Respiratory Medicine, Allergy, and Rheumatic Disease, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Suita City, Osaka 565-0871, Japan; FAU - Morimoto, Keiko AU - Morimoto K AD - Department of Immunopathology, World Premier International Research Center, Immunology Frontier Research Center, Osaka University, Suita City, Osaka 565-0871, Japan; Department of Respiratory Medicine, Allergy, and Rheumatic Disease, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Suita City, Osaka 565-0871, Japan; FAU - Maeda, Yohei AU - Maeda Y AD - Department of Immunopathology, World Premier International Research Center, Immunology Frontier Research Center, Osaka University, Suita City, Osaka 565-0871, Japan; Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; FAU - Hosokawa, Takashi AU - Hosokawa T AD - Department of Immunopathology, World Premier International Research Center, Immunology Frontier Research Center, Osaka University, Suita City, Osaka 565-0871, Japan; Department of Respiratory Medicine, Allergy, and Rheumatic Disease, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Suita City, Osaka 565-0871, Japan; FAU - Toyofuku, Toshihiko AU - Toyofuku T AD - Department of Immunopathology, World Premier International Research Center, Immunology Frontier Research Center, Osaka University, Suita City, Osaka 565-0871, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Suita City, Osaka 565-0871, Japan; Department of Immunology and Regenerative Medicine, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; FAU - Ohshima, Jun AU - Ohshima J AD - Department of Immunoparasitology, Research Institute for Microbial Diseases, Osaka University, Suita City, Osaka 565-0871, Japan; Laboratory of Immunoparasitology, World Premier International Research Center, Immunology Frontier Research Center, Osaka University, Suita City, Osaka 565-0871, Japan; and. FAU - Kamimura, Daisuke AU - Kamimura D AD - Department of Molecular Neuroimmunology, Institute for Genetic Medicine, Hokkaido University Graduate School of Medicine, Sapporo City, Hokkaido 060-0815, Japan. FAU - Yamamoto, Masahiro AU - Yamamoto M AD - Department of Immunoparasitology, Research Institute for Microbial Diseases, Osaka University, Suita City, Osaka 565-0871, Japan; Laboratory of Immunoparasitology, World Premier International Research Center, Immunology Frontier Research Center, Osaka University, Suita City, Osaka 565-0871, Japan; and. FAU - Murakami, Masaaki AU - Murakami M AD - Department of Molecular Neuroimmunology, Institute for Genetic Medicine, Hokkaido University Graduate School of Medicine, Sapporo City, Hokkaido 060-0815, Japan. FAU - Morii, Eiichi AU - Morii E AD - Department of Pathology, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; FAU - Rakugi, Hiromi AU - Rakugi H AD - Department of Geriatric Medicine and Nephrology, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; FAU - Isaka, Yoshitaka AU - Isaka Y AD - Department of Geriatric Medicine and Nephrology, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; FAU - Kumanogoh, Atsushi AU - Kumanogoh A AD - Department of Immunopathology, World Premier International Research Center, Immunology Frontier Research Center, Osaka University, Suita City, Osaka 565-0871, Japan; Department of Respiratory Medicine, Allergy, and Rheumatic Disease, Osaka University Graduate School of Medicine, Suita City, Osaka 565-0871, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Suita City, Osaka 565-0871, Japan; s_nojima@molpath.med.osaka-u.ac.jp kumanogo@imed3.med.osaka-u.ac.jp. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150626 PL - United States TA - J Immunol JT - Journal of immunology (Baltimore, Md. : 1950) JID - 2985117R RN - 0 (Fas Ligand Protein) RN - 0 (Fasl protein, mouse) RN - 0 (Multiprotein Complexes) RN - 0 (Nerve Tissue Proteins) RN - 0 (Plxnb2 protein, mouse) RN - 0 (Pore Forming Cytotoxic Proteins) RN - 0 (RNA, Small Interfering) RN - 0 (Recombinant Proteins) RN - 0 (Sema4A protein, mouse) RN - 0 (Semaphorins) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (perforin, mouse) RN - 82115-62-6 (Interferon-gamma) RN - EC 2.7.11.1 (Mechanistic Target of Rapamycin Complex 1) RN - EC 2.7.11.1 (Mechanistic Target of Rapamycin Complex 2) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - EC 3.4.21.- (Granzymes) RN - EC 3.4.21.- (Gzmb protein, mouse) SB - IM MH - Animals MH - CD8-Positive T-Lymphocytes/cytology/*immunology MH - Cell Differentiation/immunology MH - Cell Proliferation MH - Fas Ligand Protein/biosynthesis MH - Granzymes/biosynthesis MH - Interferon-gamma/biosynthesis MH - Listeria monocytogenes/immunology MH - Listeriosis/immunology MH - Lymphocyte Activation/*immunology MH - Mechanistic Target of Rapamycin Complex 1 MH - Mechanistic Target of Rapamycin Complex 2 MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Multiprotein Complexes/*immunology/metabolism MH - Nerve Tissue Proteins/genetics/*physiology MH - Pore Forming Cytotoxic Proteins/biosynthesis MH - Protein Binding/immunology MH - RNA Interference MH - RNA, Small Interfering MH - Recombinant Proteins/genetics/pharmacology MH - Semaphorins/genetics/*physiology MH - Signal Transduction/immunology MH - TOR Serine-Threonine Kinases/*immunology/metabolism MH - Tumor Necrosis Factor-alpha/biosynthesis PMC - PMC4505953 EDAT- 2015/06/28 06:00 MHDA- 2015/10/27 06:00 PMCR- 2015/06/26 CRDT- 2015/06/28 06:00 PHST- 2014/12/05 00:00 [received] PHST- 2015/05/22 00:00 [accepted] PHST- 2015/06/28 06:00 [entrez] PHST- 2015/06/28 06:00 [pubmed] PHST- 2015/10/27 06:00 [medline] PHST- 2015/06/26 00:00 [pmc-release] AID - jimmunol.1403038 [pii] AID - ji_1403038 [pii] AID - 10.4049/jimmunol.1403038 [doi] PST - ppublish SO - J Immunol. 2015 Aug 1;195(3):934-43. doi: 10.4049/jimmunol.1403038. Epub 2015 Jun 26.