PMID- 29133782 OWN - NLM STAT- MEDLINE DCOM- 20180911 LR - 20230810 IS - 2041-1723 (Electronic) IS - 2041-1723 (Linking) VI - 8 IP - 1 DP - 2017 Nov 13 TI - mTOR intersects antibody-inducing signals from TACI in marginal zone B cells. PG - 1462 LID - 10.1038/s41467-017-01602-4 [doi] LID - 1462 AB - Mechanistic target of rapamycin (mTOR) enhances immunity in addition to orchestrating metabolism. Here we show that mTOR coordinates immunometabolic reconfiguration of marginal zone (MZ) B cells, a pre-activated lymphocyte subset that mounts antibody responses to T-cell-independent antigens through a Toll-like receptor (TLR)-amplified pathway involving transmembrane activator and CAML interactor (TACI). This receptor interacts with mTOR via the TLR adapter MyD88. The resulting mTOR activation instigates MZ B-cell proliferation, immunoglobulin G (IgG) class switching, and plasmablast differentiation through a rapamycin-sensitive pathway that integrates metabolic and antibody-inducing transcription programs, including NF-kappaB. Disruption of TACI-mTOR interaction by rapamycin, truncation of the MyD88-binding domain of TACI, or B-cell-conditional mTOR deficiency interrupts TACI signaling via NF-kappaB and cooperation with TLRs, thereby hampering IgG production to T-cell-independent antigens but not B-cell survival. Thus, mTOR drives innate-like antibody responses by linking proximal TACI signaling events with distal immunometabolic transcription programs. FAU - Sintes, Jordi AU - Sintes J AD - Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mediques (IMIM), Barcelona, 08003, Spain. jsintes@imim.es. FAU - Gentile, Maurizio AU - Gentile M AD - Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mediques (IMIM), Barcelona, 08003, Spain. FAU - Zhang, Shuling AU - Zhang S AD - Laboratory of Cancer Biology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA. FAU - Garcia-Carmona, Yolanda AU - Garcia-Carmona Y AD - Department of Medicine and Pediatrics, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA. FAU - Magri, Giuliana AU - Magri G AD - Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mediques (IMIM), Barcelona, 08003, Spain. FAU - Cassis, Linda AU - Cassis L AD - Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mediques (IMIM), Barcelona, 08003, Spain. FAU - Segura-Garzon, Daniel AU - Segura-Garzon D AD - Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mediques (IMIM), Barcelona, 08003, Spain. FAU - Ciociola, Alessandra AU - Ciociola A AD - Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mediques (IMIM), Barcelona, 08003, Spain. FAU - Grasset, Emilie K AU - Grasset EK AD - Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA. AD - Department of Medicine, Center for Molecular Medicine at Karolinska University Hospital, Karolinska Institutet, Stockholm, 171 76, Sweden. FAU - Bascones, Sabrina AU - Bascones S AD - Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mediques (IMIM), Barcelona, 08003, Spain. FAU - Comerma, Laura AU - Comerma L AD - Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mediques (IMIM), Barcelona, 08003, Spain. FAU - Pybus, Marc AU - Pybus M AD - Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mediques (IMIM), Barcelona, 08003, Spain. FAU - Llige, David AU - Llige D AD - Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mediques (IMIM), Barcelona, 08003, Spain. FAU - Puga, Irene AU - Puga I AD - Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mediques (IMIM), Barcelona, 08003, Spain. FAU - Gutzeit, Cindy AU - Gutzeit C AD - Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA. FAU - He, Bing AU - He B AD - Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA. FAU - DuBois, Wendy AU - DuBois W AD - Laboratory of Cancer Biology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA. FAU - Crespo, Marta AU - Crespo M AD - Department of Nephrology, Institut Hospital del Mar d'Investigacions Mediques (IMIM), Barcelona, 08003, Spain. FAU - Pascual, Julio AU - Pascual J AD - Department of Nephrology, Institut Hospital del Mar d'Investigacions Mediques (IMIM), Barcelona, 08003, Spain. FAU - Mensa, Anna AU - Mensa A AD - Immunology Service, Hospital Clinic of Barcelona, Barcelona, 08036, Spain. FAU - Arostegui, Juan Ignacio AU - Arostegui JI AD - Immunology Service, Hospital Clinic of Barcelona, Barcelona, 08036, Spain. FAU - Juan, Manel AU - Juan M AUID- ORCID: 0000-0002-3064-1648 AD - Immunology Service, Hospital Clinic of Barcelona, Barcelona, 08036, Spain. FAU - Yague, Jordi AU - Yague J AD - Immunology Service, Hospital Clinic of Barcelona, Barcelona, 08036, Spain. FAU - Serrano, Sergi AU - Serrano S AD - Department of Pathology, Hospital del Mar, Barcelona, 08003, Spain. AD - Universitat Pompeu Fabra, Barcelona, 08003, Spain. FAU - Lloreta, Josep AU - Lloreta J AD - Department of Pathology, Hospital del Mar, Barcelona, 08003, Spain. AD - Universitat Pompeu Fabra, Barcelona, 08003, Spain. FAU - Meffre, Eric AU - Meffre E AD - Department of Immunobiology, Yale University, New Haven, CT, 06511, USA. FAU - Hahne, Michael AU - Hahne M AD - Molecular Genetics Institute of Montpellier, Montpellier, 34293, France. FAU - Cunningham-Rundles, Charlotte AU - Cunningham-Rundles C AD - Department of Medicine and Pediatrics, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA. FAU - Mock, Beverly A AU - Mock BA AUID- ORCID: 0000-0003-2479-4549 AD - Laboratory of Cancer Biology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA. FAU - Cerutti, Andrea AU - Cerutti A AD - Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mediques (IMIM), Barcelona, 08003, Spain. acerutti@imim.es. AD - Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA. acerutti@imim.es. AD - Catalan Institute for Research and Advanced Studies (ICREA), Barcelona, 08003, Spain. acerutti@imim.es. LA - eng GR - P01 AI061093/AI/NIAID NIH HHS/United States GR - R01 AI057653/AI/NIAID NIH HHS/United States GR - U01 AI095613/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20171113 PL - England TA - Nat Commun JT - Nature communications JID - 101528555 RN - 0 (Immunoglobulin G) RN - 0 (MYD88 protein, human) RN - 0 (Myeloid Differentiation Factor 88) RN - 0 (NF-kappa B) RN - 0 (TNFRSF13B protein, human) RN - 0 (Transmembrane Activator and CAML Interactor Protein) RN - EC 2.7.1.1 (MTOR protein, human) RN - EC 2.7.11.1 (Mechanistic Target of Rapamycin Complex 1) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - W36ZG6FT64 (Sirolimus) SB - IM MH - Animals MH - B-Lymphocytes/*immunology MH - Cell Line MH - Cell Proliferation MH - Enzyme Activation MH - Gene Expression Profiling MH - HEK293 Cells MH - Humans MH - Immunoglobulin Class Switching/genetics/immunology MH - Immunoglobulin G/biosynthesis/*immunology MH - Lymphocyte Activation/immunology MH - Mechanistic Target of Rapamycin Complex 1/*immunology MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Myeloid Differentiation Factor 88/*metabolism MH - NF-kappa B/metabolism MH - Signal Transduction/immunology MH - Sirolimus/pharmacology MH - TOR Serine-Threonine Kinases/*immunology MH - Transmembrane Activator and CAML Interactor Protein/*immunology PMC - PMC5684130 COIS- The authors declare no competing financial interests. EDAT- 2017/11/15 06:00 MHDA- 2018/09/12 06:00 PMCR- 2017/11/13 CRDT- 2017/11/15 06:00 PHST- 2016/12/14 00:00 [received] PHST- 2017/10/03 00:00 [accepted] PHST- 2017/11/15 06:00 [entrez] PHST- 2017/11/15 06:00 [pubmed] PHST- 2018/09/12 06:00 [medline] PHST- 2017/11/13 00:00 [pmc-release] AID - 10.1038/s41467-017-01602-4 [pii] AID - 1602 [pii] AID - 10.1038/s41467-017-01602-4 [doi] PST - epublish SO - Nat Commun. 2017 Nov 13;8(1):1462. doi: 10.1038/s41467-017-01602-4.