Microglia and Microbiome-Gut-Brain Axis
- PMID: 39207699
- DOI: 10.1007/978-3-031-55529-9_17
Microglia and Microbiome-Gut-Brain Axis
Abstract
The mammalian gut contains a community of microorganisms called gut microbiome. The gut microbiome is integrated into mammalian physiology, contributing to metabolism, production of metabolites, and promoting immunomodulatory actions. Microglia, the brain's resident innate immune cells, play an essential role in homeostatic neurogenesis, synaptic remodeling, and glial maturation. Microglial dysfunction has been implicated in the pathogenesis of several neuropsychiatric disorders. Recent findings indicate that microglia are influenced by the gut microbiome and their derived metabolites throughout life. The pathways by which microbiota regulate microglia have only started to be understood, but this discovery has the potential to provide valuable insights into the pathogenesis of brain disorders associated with an altered microbiome. Here, we discuss the recent literature on the role of the gut microbiome in modulating microglia during development and adulthood and summarize the key findings on this bidirectional crosstalk in selected examples of neuropsychiatric and neurodegenerative disorders. We also highlight some current caveats and perspectives for the field.
Keywords: Gut-derived metabolites; Gut–brain axis; Microbiome; Microglia; Neurodevelopment; Neuropsychiatric disorders.
© 2024. The Author(s), under exclusive license to Springer Nature Switzerland AG.
Similar articles
-
Microbiome-microglia connections via the gut-brain axis.J Exp Med. 2019 Jan 7;216(1):41-59. doi: 10.1084/jem.20180794. Epub 2018 Nov 1. J Exp Med. 2019. PMID: 30385457 Free PMC article. Review.
-
Regulation of microglial physiology by the microbiota.Gut Microbes. 2022 Jan-Dec;14(1):2125739. doi: 10.1080/19490976.2022.2125739. Gut Microbes. 2022. PMID: 36151874 Free PMC article. Review.
-
Gut microbiota and neuropsychiatric disorders: Implications for neuroendocrine-immune regulation.Pharmacol Res. 2021 Nov;173:105909. doi: 10.1016/j.phrs.2021.105909. Epub 2021 Sep 20. Pharmacol Res. 2021. PMID: 34543739 Review.
-
Gut Metabolites Acting on the Gut-Brain Axis: Regulating the Functional State of Microglia.Aging Dis. 2024 Apr 1;15(2):480-502. doi: 10.14336/AD.2023.0727. Aging Dis. 2024. PMID: 37548933 Free PMC article. Review.
-
Sex-related patterns of the gut-microbiota-brain axis in the neuropsychiatric conditions.Brain Res Bull. 2021 Jun;171:196-208. doi: 10.1016/j.brainresbull.2021.04.001. Epub 2021 Apr 7. Brain Res Bull. 2021. PMID: 33838211 Review.
References
-
- Agranyoni O, Meninger-Mordechay S, Uzan A, Ziv O, Salmon-Divon M, Rodin D, Raz O, Koman I, Koren O, Pinhasov A, Navon-Venezia S (2021) Gut microbiota determines the social behavior of mice and induces metabolic and inflammatory changes in their adipose tissue. Npj Biofilms and Microbiomes 7(1):Article 1. https://doi.org/10.1038/s41522-021-00193-9 - DOI
-
- Ahn J, Hayes RB (2021) Environmental influences on the human microbiome and implications for noncommunicable disease. Annu Rev Public Health 42:277–292. https://doi.org/10.1146/annurev-publhealth-012420-105020 - DOI - PubMed - PMC
-
- Ajami B, Bennett JL, Krieger C, Tetzlaff W, Rossi FMV (2007) Local self-renewal can sustain CNS microglia maintenance and function throughout adult life. Nat Neurosci 10(12):Article 12. https://doi.org/10.1038/nn2014 - DOI
-
- Almand AT, Anderson AP, Hitt BD, Sitko JC, Joy RM, Easter BD, Almand EA (2022) The influence of perceived stress on the human microbiome. BMC Res Notes 15(1):193. https://doi.org/10.1186/s13104-022-06066-4 - DOI - PubMed - PMC
-
- Antony JM, Paquin A, Nutt SL, Kaplan DR, Miller FD (2011) Endogenous microglia regulate development of embryonic cortical precursor cells. J Neurosci Res 89(3):286–298. https://doi.org/10.1002/jnr.22533 - DOI - PubMed