PMID- 28254170 OWN - NLM STAT- MEDLINE DCOM- 20180502 LR - 20180611 IS - 1471-4981 (Electronic) IS - 1471-4906 (Linking) VI - 38 IP - 9 DP - 2017 Sep TI - Positive and Negative Signals in Mast Cell Activation. PG - 657-667 LID - S1471-4906(17)30022-4 [pii] LID - 10.1016/j.it.2017.01.008 [doi] AB - Mast cells are powerful immune modulators of the tissue microenvironment. Within seconds of activation, these cells release a variety of preformed biologically active products, followed by a wave of mediator synthesis and secretion. Increasing evidence suggests that an intricate network of inhibitory and activating receptors, specific signaling pathways, and adaptor proteins governs mast cell responsiveness to stimuli. Here, we discuss the biological and clinical relevance of negative and positive signaling modalities that control mast cell activation, with an emphasis on novel FcepsilonRI regulators, immunoglobulin E (IgE)-independent pathways [e.g., Mas-related G protein-coupled receptor X2 (MRGPRX2)], tetraspanins, and the CD300 family of inhibitory and activating receptors. CI - Copyright (c) 2017. Published by Elsevier Ltd. FAU - Bulfone-Paus, Silvia AU - Bulfone-Paus S AD - Division of Musculoskeletal and Dermatological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK. FAU - Nilsson, Gunnar AU - Nilsson G AD - Immunology and Allergy unit, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden; Department of Medical Sciences, Uppsala University, Uppsala, Sweden. FAU - Draber, Petr AU - Draber P AD - Department of Signal Transduction, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czech Republic. FAU - Blank, Ulrich AU - Blank U AD - INSERM U1149, Centre de Recherche sur l'Inflammation, Paris, France; CNRS ERL8252, Paris, France; Universite Paris Diderot, Sorbonne Paris Cite, Faculte de Medecine, Site Xavier Bichat, Inflamex Laboratory of Excellence, Paris, France. FAU - Levi-Schaffer, Francesca AU - Levi-Schaffer F AD - Pharmacology and Experimental Therapeutics Unit, School of Pharmacy, Institute for Drug Research, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel. Electronic address: francescal@ekmd.huji.ac.il. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Review DEP - 20170220 PL - England TA - Trends Immunol JT - Trends in immunology JID - 100966032 RN - 0 (Antimicrobial Cationic Peptides) RN - 0 (FCER1A protein, human) RN - 0 (Ki-1 Antigen) RN - 0 (MRGPRX2 protein, human) RN - 0 (Nerve Tissue Proteins) RN - 0 (Neuropeptides) RN - 0 (Receptors, G-Protein-Coupled) RN - 0 (Receptors, IgE) RN - 0 (Receptors, Neuropeptide) RN - 0 (Tetraspanins) SB - IM MH - Animals MH - Antimicrobial Cationic Peptides/metabolism MH - *Cell Degranulation MH - Ganglia, Spinal/metabolism MH - Humans MH - Immunomodulation MH - Ki-1 Antigen/metabolism MH - Mast Cells/*immunology MH - Nerve Tissue Proteins/*metabolism MH - Neuropeptides/metabolism MH - Receptors, G-Protein-Coupled/*metabolism MH - Receptors, IgE/metabolism MH - Receptors, Neuropeptide/*metabolism MH - *Signal Transduction MH - Tetraspanins/metabolism EDAT- 2017/03/04 06:00 MHDA- 2018/05/03 06:00 CRDT- 2017/03/04 06:00 PHST- 2016/11/28 00:00 [received] PHST- 2017/01/17 00:00 [revised] PHST- 2017/01/27 00:00 [accepted] PHST- 2017/03/04 06:00 [pubmed] PHST- 2018/05/03 06:00 [medline] PHST- 2017/03/04 06:00 [entrez] AID - S1471-4906(17)30022-4 [pii] AID - 10.1016/j.it.2017.01.008 [doi] PST - ppublish SO - Trends Immunol. 2017 Sep;38(9):657-667. doi: 10.1016/j.it.2017.01.008. Epub 2017 Feb 20.