PMID- 37149863 OWN - NLM STAT- MEDLINE DCOM- 20230605 LR - 20230608 IS - 2211-1247 (Electronic) VI - 42 IP - 5 DP - 2023 May 30 TI - Vaginal epithelial dysfunction is mediated by the microbiome, metabolome, and mTOR signaling. PG - 112474 LID - S2211-1247(23)00485-0 [pii] LID - 10.1016/j.celrep.2023.112474 [doi] LID - 112474 AB - Bacterial vaginosis (BV) is characterized by depletion of Lactobacillus and overgrowth of anaerobic and facultative bacteria, leading to increased mucosal inflammation, epithelial disruption, and poor reproductive health outcomes. However, the molecular mediators contributing to vaginal epithelial dysfunction are poorly understood. Here we utilize proteomic, transcriptomic, and metabolomic analyses to characterize biological features underlying BV in 405 African women and explore functional mechanisms in vitro. We identify five major vaginal microbiome groups: L. crispatus (21%), L. iners (18%), Lactobacillus (9%), Gardnerella (30%), and polymicrobial (22%). Using multi-omics we show that BV-associated epithelial disruption and mucosal inflammation link to the mammalian target of rapamycin (mTOR) pathway and associate with Gardnerella, M. mulieris, and specific metabolites including imidazole propionate. Experiments in vitro confirm that type strain G. vaginalis and M. mulieris supernatants and imidazole propionate directly affect epithelial barrier function and activation of mTOR pathways. These results find that the microbiome-mTOR axis is a central feature of epithelial dysfunction in BV. CI - Copyright (c) 2023 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Berard, Alicia R AU - Berard AR AD - Department of Obstetrics & Gynecology, University of Manitoba, Winnipeg, MB R3E 3P5, Canada; Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA. FAU - Brubaker, Douglas K AU - Brubaker DK AD - Weldon School of Biomedical Engineering and Regenstrief Center for Healthcare Engineering, Purdue University, West Lafayette, IN 47907, USA. FAU - Birse, Kenzie AU - Birse K AD - Department of Obstetrics & Gynecology, University of Manitoba, Winnipeg, MB R3E 3P5, Canada; Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA. FAU - Lamont, Alana AU - Lamont A AD - Department of Obstetrics & Gynecology, University of Manitoba, Winnipeg, MB R3E 3P5, Canada. FAU - Mackelprang, Romel D AU - Mackelprang RD AD - Department of Global Health, University of Washington, Seattle, WA 98105, USA. FAU - Noel-Romas, Laura AU - Noel-Romas L AD - Department of Obstetrics & Gynecology, University of Manitoba, Winnipeg, MB R3E 3P5, Canada; Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA. FAU - Perner, Michelle AU - Perner M AD - Medical Microbiology and Infectious Disease University of Manitoba, Winnipeg, MB R3E 0J9, Canada. FAU - Hou, Xuanlin AU - Hou X AD - Department of Global Health, University of Washington, Seattle, WA 98105, USA. FAU - Irungu, Elizabeth AU - Irungu E AD - Partners in Health Research and Development, Kenya Medical Research Institute, Mbagathi Road, Nairobi, Kenya. FAU - Mugo, Nelly AU - Mugo N AD - Department of Global Health, University of Washington, Seattle, WA 98105, USA; Partners in Health Research and Development, Kenya Medical Research Institute, Mbagathi Road, Nairobi, Kenya. FAU - Knodel, Samantha AU - Knodel S AD - Department of Obstetrics & Gynecology, University of Manitoba, Winnipeg, MB R3E 3P5, Canada; Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA. FAU - Muwonge, Timothy R AU - Muwonge TR AD - Infectious Disease Institute, Makerere University, Makerere, Kampala, Uganda. FAU - Katabira, Elly AU - Katabira E AD - Infectious Disease Institute, Makerere University, Makerere, Kampala, Uganda. FAU - Hughes, Sean M AU - Hughes SM AD - Department of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA. FAU - Levy, Claire AU - Levy C AD - Department of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA. FAU - Calienes, Fernanda L AU - Calienes FL AD - Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA. FAU - Lauffenburger, Douglas A AU - Lauffenburger DA AD - Department of Biological Engineering, MIT, Cambridge, MA 02142, USA. FAU - Baeten, Jared M AU - Baeten JM AD - Department of Global Health, University of Washington, Seattle, WA 98105, USA; Department of Medicine, University of Washington, Seattle, WA 98195, USA; Department of Epidemiology, University of Washington, Seattle, WA 98195, USA; Gilead Sciences, Foster City, CA 94404, USA. FAU - Celum, Connie AU - Celum C AD - Department of Global Health, University of Washington, Seattle, WA 98105, USA; Department of Medicine, University of Washington, Seattle, WA 98195, USA; Department of Epidemiology, University of Washington, Seattle, WA 98195, USA. FAU - Hladik, Florian AU - Hladik F AD - Department of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA; Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; Department of Medicine, University of Washington, Seattle, WA 98195, USA. FAU - Lingappa, Jairam AU - Lingappa J AD - Department of Global Health, University of Washington, Seattle, WA 98105, USA; Department of Medicine, University of Washington, Seattle, WA 98195, USA; Department of Pediatrics, University of Washington, Seattle, WA 98195, USA. FAU - Burgener, Adam D AU - Burgener AD AD - Department of Obstetrics & Gynecology, University of Manitoba, Winnipeg, MB R3E 3P5, Canada; Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA; Department of Medicine Solna, Karolinska Institutet, Framstegsgatan, 171 64 Solna, Sweden. Electronic address: adam.burgener@case.edu. LA - eng GR - R01 AI111738/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 - 20230506 PL - United States TA - Cell Rep JT - Cell reports JID - 101573691 RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - EC 2.7.1.1 (MTOR protein, human) SB - IM MH - Female MH - Humans MH - Proteomics MH - Vagina MH - *Vaginosis, Bacterial/microbiology MH - Lactobacillus/physiology MH - Metabolome MH - TOR Serine-Threonine Kinases MH - *Microbiota MH - Inflammation PMC - PMC10242450 OTO - NOTNLM OT - BV OT - CP: Microbiology OT - bacterial vaginosis OT - epithelial barrier OT - imidazolepropionic acid OT - in vitro models OT - inflammation OT - mTOR signaling OT - metabolomics OT - proteomics OT - transcriptomics OT - vaginal dysbiosis OT - vaginal microbiome COIS- Declaration of interests J.M.B. is an employee of Gilead Sciences, outside of the submitted work. EDAT- 2023/05/07 18:41 MHDA- 2023/06/05 06:42 PMCR- 2023/05/06 CRDT- 2023/05/07 12:36 PHST- 2022/09/29 00:00 [received] PHST- 2023/03/15 00:00 [revised] PHST- 2023/04/19 00:00 [accepted] PHST- 2023/06/05 06:42 [medline] PHST- 2023/05/07 18:41 [pubmed] PHST- 2023/05/07 12:36 [entrez] PHST- 2023/05/06 00:00 [pmc-release] AID - S2211-1247(23)00485-0 [pii] AID - 112474 [pii] AID - 10.1016/j.celrep.2023.112474 [doi] PST - ppublish SO - Cell Rep. 2023 May 30;42(5):112474. doi: 10.1016/j.celrep.2023.112474. Epub 2023 May 6.