Host and Microbiome Interplay Shapes the Vaginal Microenvironment

The female reproductive tract harbors a unique microbiome, especially the vagina. The human vaginal microbiome exhibits a low diversity and is dominated by Lactobacillus species, compared to the microbiome of other organs. The host and vaginal microbiome mutually coexist in the vaginal microenvironm...

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Main Authors: Myoung Seung Kwon, Heung Kyu Lee
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-06-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2022.919728/full
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author Myoung Seung Kwon
Heung Kyu Lee
author_facet Myoung Seung Kwon
Heung Kyu Lee
author_sort Myoung Seung Kwon
collection DOAJ
description The female reproductive tract harbors a unique microbiome, especially the vagina. The human vaginal microbiome exhibits a low diversity and is dominated by Lactobacillus species, compared to the microbiome of other organs. The host and vaginal microbiome mutually coexist in the vaginal microenvironment. Host cells provide Lactobacillus glycogen as an energy source, and Lactobacillus produce lactic acid, which lowers vaginal pH thereby preventing growth of other bacteria. Bacterial vaginosis can modulate host immune systems, and is frequently associated with various aspects of disease, including sexually transmitted infection, gynecologic cancer, and poor pregnancy outcomes. Because of this, numerous studies focused on the impact of the vaginal microbiome on women`s health and disease. Furthermore, numerous epidemiologic studies also have demonstrated various host factors regulate the vaginal microbiome. The female reproductive tract undergoes constant fluctuations due to hormonal cycle, pregnancy, and other extrinsic factors. Depending on these fluctuations, the vaginal microbiome composition can shift temporally and dynamically. In this review, we highlight the current knowledge of how host factors modulate vaginal microbiome composition and how the vaginal microbiome contributes to maintaining homeostasis or inducing pathogenesis. A better understanding of relationship between host and vaginal microbiome could identify novel targets for diagnosis, prognosis, or treatment of microbiome-related diseases.
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spelling doaj.art-73f23af5772a48bcb70368e7835570dc2022-12-22T03:33:05ZengFrontiers Media S.A.Frontiers in Immunology1664-32242022-06-011310.3389/fimmu.2022.919728919728Host and Microbiome Interplay Shapes the Vaginal MicroenvironmentMyoung Seung KwonHeung Kyu LeeThe female reproductive tract harbors a unique microbiome, especially the vagina. The human vaginal microbiome exhibits a low diversity and is dominated by Lactobacillus species, compared to the microbiome of other organs. The host and vaginal microbiome mutually coexist in the vaginal microenvironment. Host cells provide Lactobacillus glycogen as an energy source, and Lactobacillus produce lactic acid, which lowers vaginal pH thereby preventing growth of other bacteria. Bacterial vaginosis can modulate host immune systems, and is frequently associated with various aspects of disease, including sexually transmitted infection, gynecologic cancer, and poor pregnancy outcomes. Because of this, numerous studies focused on the impact of the vaginal microbiome on women`s health and disease. Furthermore, numerous epidemiologic studies also have demonstrated various host factors regulate the vaginal microbiome. The female reproductive tract undergoes constant fluctuations due to hormonal cycle, pregnancy, and other extrinsic factors. Depending on these fluctuations, the vaginal microbiome composition can shift temporally and dynamically. In this review, we highlight the current knowledge of how host factors modulate vaginal microbiome composition and how the vaginal microbiome contributes to maintaining homeostasis or inducing pathogenesis. A better understanding of relationship between host and vaginal microbiome could identify novel targets for diagnosis, prognosis, or treatment of microbiome-related diseases.https://www.frontiersin.org/articles/10.3389/fimmu.2022.919728/fullvaginal microbiomelactobacillusglycogenestrogenbacterial vaginosisSTI
spellingShingle Myoung Seung Kwon
Heung Kyu Lee
Host and Microbiome Interplay Shapes the Vaginal Microenvironment
Frontiers in Immunology
vaginal microbiome
lactobacillus
glycogen
estrogen
bacterial vaginosis
STI
title Host and Microbiome Interplay Shapes the Vaginal Microenvironment
title_full Host and Microbiome Interplay Shapes the Vaginal Microenvironment
title_fullStr Host and Microbiome Interplay Shapes the Vaginal Microenvironment
title_full_unstemmed Host and Microbiome Interplay Shapes the Vaginal Microenvironment
title_short Host and Microbiome Interplay Shapes the Vaginal Microenvironment
title_sort host and microbiome interplay shapes the vaginal microenvironment
topic vaginal microbiome
lactobacillus
glycogen
estrogen
bacterial vaginosis
STI
url https://www.frontiersin.org/articles/10.3389/fimmu.2022.919728/full
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