Embryonic microglia maintain the brain's cortical fault lines

Trends Immunol. 2024 May;45(5):327-328. doi: 10.1016/j.it.2024.04.005. Epub 2024 Apr 24.

Abstract

Lawrence et al. report that fetal cortical boundaries are susceptible to morphogenetic stress that regulates a microglia state resembling postnatal, axon-tract associated microglia (ATM). This state performs a newfound function at these boundaries by preventing the formation of cavitary lesions, mediated in part by Spp1-regulated phagocytosis of fibronectin 1.

MeSH terms

  • Animals
  • Brain / embryology
  • Brain / physiology
  • Cerebral Cortex / cytology
  • Cerebral Cortex / embryology
  • Fibronectins / metabolism
  • Humans
  • Microglia* / physiology
  • Phagocytosis

Substances

  • Fibronectins