PMID- 29540618 OWN - NLM STAT- MEDLINE DCOM- 20190923 LR - 20240420 IS - 1946-6242 (Electronic) IS - 1946-6234 (Print) IS - 1946-6234 (Linking) VI - 10 IP - 432 DP - 2018 Mar 14 TI - The Fas/Fap-1/Cav-1 complex regulates IL-1RA secretion in mesenchymal stem cells to accelerate wound healing. LID - 10.1126/scitranslmed.aai8524 [doi] LID - eaai8524 AB - Mesenchymal stem cells (MSCs) are capable of secreting exosomes, extracellular vesicles, and cytokines to regulate cell and tissue homeostasis. However, it is unknown whether MSCs use a specific exocytotic fusion mechanism to secrete exosomes and cytokines. We show that Fas binds with Fas-associated phosphatase-1 (Fap-1) and caveolin-1 (Cav-1) to activate a common soluble N-ethylmaleimide-sensitive factor (NSF) attachment protein receptor (SNARE)-mediated membrane fusion mechanism to release small extracellular vesicles (sEVs) in MSCs. Moreover, we reveal that MSCs produce and secrete interleukin-1 receptor antagonist (IL-1RA) associated with sEVs to maintain rapid wound healing in the gingiva via the Fas/Fap-1/Cav-1 cascade. Tumor necrosis factor-alpha (TNF-alpha) serves as an activator to up-regulate Fas and Fap-1 expression via the nuclear factor kappaB pathway to promote IL-1RA release. This study identifies a previously unknown Fas/Fap-1/Cav-1 axis that regulates SNARE-mediated sEV and IL-1RA secretion in stem cells, which contributes to accelerated wound healing. CI - Copyright (c) 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. FAU - Kou, Xiaoxing AU - Kou X AUID- ORCID: 0000-0001-9680-0077 AD - Department of Anatomy and Cell Biology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA 19104, USA. AD - Department of Orthodontics, Peking University School and Hospital of Stomatology, #22 Zhongguancun South Avenue, Beijing 100081, China. FAU - Xu, Xingtian AU - Xu X AD - Center for Craniofacial Molecular Biology, Ostrow School of Dentistry, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA 90033, USA. FAU - Chen, Chider AU - Chen C AUID- ORCID: 0000-0003-2899-1208 AD - Department of Anatomy and Cell Biology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA 19104, USA. FAU - Sanmillan, Maria Laura AU - Sanmillan ML AD - Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Cai, Tao AU - Cai T AUID- ORCID: 0000-0002-2877-8637 AD - National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20982, USA. FAU - Zhou, Yanheng AU - Zhou Y AD - Department of Orthodontics, Peking University School and Hospital of Stomatology, #22 Zhongguancun South Avenue, Beijing 100081, China. FAU - Giraudo, Claudio AU - Giraudo C AD - Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Le, Anh AU - Le A AUID- ORCID: 0000-0003-4726-2529 AD - Department of Anatomy and Cell Biology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA 19104, USA. FAU - Shi, Songtao AU - Shi S AD - Department of Anatomy and Cell Biology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA 19104, USA. songtaos@upenn.edu. LA - eng GR - R01 DE017449/DE/NIDCR NIH HHS/United States GR - R03 DE028026/DE/NIDCR NIH HHS/United States GR - K99 DE025915/DE/NIDCR NIH HHS/United States GR - R00 DE025915/DE/NIDCR NIH HHS/United States GR - R01 DE019932/DE/NIDCR NIH HHS/United States GR - R01 GM123020/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Sci Transl Med JT - Science translational medicine JID - 101505086 RN - 0 (Caveolin 1) RN - 0 (Fas protein, mouse) RN - 0 (Interleukin 1 Receptor Antagonist Protein) RN - 0 (fas Receptor) RN - EC 3.1.3.48 (Protein Tyrosine Phosphatase, Non-Receptor Type 13) SB - IM MH - Animals MH - Caveolin 1/genetics/*metabolism MH - Female MH - Interleukin 1 Receptor Antagonist Protein/*metabolism MH - Mesenchymal Stem Cells/*metabolism MH - Mice MH - Mice, Inbred C3H MH - Mice, Inbred C57BL MH - Mice, Inbred MRL lpr MH - Mice, Knockout MH - Protein Tyrosine Phosphatase, Non-Receptor Type 13/genetics/*metabolism MH - Wound Healing/genetics/physiology MH - fas Receptor/genetics/*metabolism PMC - PMC6310133 MID - NIHMS969162 COIS- Competing interests: The authors declare that they have no competing interests. EDAT- 2018/03/16 06:00 MHDA- 2019/09/24 06:00 PMCR- 2018/12/28 CRDT- 2018/03/16 06:00 PHST- 2016/08/22 00:00 [received] PHST- 2017/03/06 00:00 [revised] PHST- 2018/02/13 00:00 [accepted] PHST- 2018/03/16 06:00 [entrez] PHST- 2018/03/16 06:00 [pubmed] PHST- 2019/09/24 06:00 [medline] PHST- 2018/12/28 00:00 [pmc-release] AID - 10/432/eaai8524 [pii] AID - 10.1126/scitranslmed.aai8524 [doi] PST - ppublish SO - Sci Transl Med. 2018 Mar 14;10(432):eaai8524. doi: 10.1126/scitranslmed.aai8524.