Mitochondria-Associated Endoplasmic Reticulum Membranes in Microglia: One Contact Site to Rule Them all

Microglia, the resident immune cells of the central nervous system (CNS), play a crucial role in maintaining tissue homeostasis by monitoring and responding to environmental changes through processes such as phagocytosis, cytokine production or synapse remodeling. Their dynamic nature and diverse fu...

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Main Authors: Elisa Navarro, Jorge Montesinos
Format: Article
Language:English
Published: SAGE Publishing 2025-01-01
Series:Contact
Online Access:https://doi.org/10.1177/25152564241312807
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author Elisa Navarro
Jorge Montesinos
author_facet Elisa Navarro
Jorge Montesinos
author_sort Elisa Navarro
collection DOAJ
description Microglia, the resident immune cells of the central nervous system (CNS), play a crucial role in maintaining tissue homeostasis by monitoring and responding to environmental changes through processes such as phagocytosis, cytokine production or synapse remodeling. Their dynamic nature and diverse functions are supported by the regulation of multiple metabolic pathways, enabling microglia to efficiently adapt to fluctuating signals. A key aspect of this regulation occurs at mitochondria-associated ER membranes (MAM), specialized contact sites between the ER and mitochondria. These structures facilitate the exchange of calcium, lipids, and metabolites and serve as metabolic and signaling hubs. This review synthesizes current research on how MAM influence microglial physiology, with an emphasis on their role in immunometabolism, offering new insights into the integration of metabolic and immune functions in the CNS and its impact in the context of neurodegeneration.
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spelling doaj-art-71bee44347244bf98351c9b0b152baa72025-01-29T11:05:32ZengSAGE PublishingContact2515-25642025-01-01810.1177/25152564241312807Mitochondria-Associated Endoplasmic Reticulum Membranes in Microglia: One Contact Site to Rule Them allElisa Navarro0Jorge Montesinos1 , 28034 Madrid, Spain Department of Biomedicine, , CSIC, 28040 Madrid, SpainMicroglia, the resident immune cells of the central nervous system (CNS), play a crucial role in maintaining tissue homeostasis by monitoring and responding to environmental changes through processes such as phagocytosis, cytokine production or synapse remodeling. Their dynamic nature and diverse functions are supported by the regulation of multiple metabolic pathways, enabling microglia to efficiently adapt to fluctuating signals. A key aspect of this regulation occurs at mitochondria-associated ER membranes (MAM), specialized contact sites between the ER and mitochondria. These structures facilitate the exchange of calcium, lipids, and metabolites and serve as metabolic and signaling hubs. This review synthesizes current research on how MAM influence microglial physiology, with an emphasis on their role in immunometabolism, offering new insights into the integration of metabolic and immune functions in the CNS and its impact in the context of neurodegeneration.https://doi.org/10.1177/25152564241312807
spellingShingle Elisa Navarro
Jorge Montesinos
Mitochondria-Associated Endoplasmic Reticulum Membranes in Microglia: One Contact Site to Rule Them all
Contact
title Mitochondria-Associated Endoplasmic Reticulum Membranes in Microglia: One Contact Site to Rule Them all
title_full Mitochondria-Associated Endoplasmic Reticulum Membranes in Microglia: One Contact Site to Rule Them all
title_fullStr Mitochondria-Associated Endoplasmic Reticulum Membranes in Microglia: One Contact Site to Rule Them all
title_full_unstemmed Mitochondria-Associated Endoplasmic Reticulum Membranes in Microglia: One Contact Site to Rule Them all
title_short Mitochondria-Associated Endoplasmic Reticulum Membranes in Microglia: One Contact Site to Rule Them all
title_sort mitochondria associated endoplasmic reticulum membranes in microglia one contact site to rule them all
url https://doi.org/10.1177/25152564241312807
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