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The spatiotemporal dynamics of microglia across the human lifespan

Menassa, David A and Muntslag, Tim A.O. and Martin-Estebané, Maria and Barry-Carroll, Liam and Chapman, Mark A. and Adorján, István and Tyler, Teadora and Turnbull, Bethany and Rose-Zerilli, Matthew J.J. and Nicoll, James A.R. and Krsnik, Zeljka and Kostovic, Ivica and Gomez-Nicola, Diego (2022) The spatiotemporal dynamics of microglia across the human lifespan. DEVELOPMENTAL CELL, 57 (17). 2127-2139.e6. ISSN 1534-5807

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Abstract

Microglia, the brain’s resident macrophages, shape neural development and are key neuroimmune hubs in the pathological signatures of neurodevelopmental disorders. Despite the importance of microglia, their development has not been carefully examined in the human brain, and most of our knowledge derives from rodents. We aimed to address this gap in knowledge by establishing an extensive collection of 97 post-mortem tissues in order to enable quantitative, sex-matched, detailed analysis of microglia across the human lifespan. We identify the dynamics of these cells in the human telencephalon, describing waves in microglial density across gestation, infancy, and childhood, controlled by a balance of proliferation and apoptosis, which track key neurodevelopmental milestones. These profound changes in microglia are also observed in bulk RNA-seq and single-cell RNA-seq datasets. This study provides a detailed insight into the spatiotemporal dynamics of microglia across the human lifespan and serves as a foundation for elucidating how microglia contribute to shaping neurodevelopment in humans.

Item Type: Article
Subjects: Q Science / természettudomány > QH Natural history / természetrajz > QH301 Biology / biológia > QH3015 Molecular biology / molekuláris biológia
R Medicine / orvostudomány > R1 Medicine (General) / orvostudomány általában > R850-854 Experimental medicine / kisérleti orvostudomány
R Medicine / orvostudomány > RC Internal medicine / belgyógyászat > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry / idegkórtan, neurológia, pszichiátria
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 27 Sep 2023 07:57
Last Modified: 27 Sep 2023 07:57
URI: http://real.mtak.hu/id/eprint/175226

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