6533b7ddfe1ef96bd1275317
RESEARCH PRODUCT
Microglia in CNS development: Shaping the brain for the future
Isabelle ArnouxEtienne AudinatEtienne AudinatCoralie-anne MosserSofia Baptistasubject
Central Nervous System0301 basic medicineMicrogliaGeneral NeuroscienceCentral nervous systemInflammationBiologymedicine.diseaseSynapse03 medical and health sciences030104 developmental biologyNeurodevelopmental disordermedicine.anatomical_structureImmune systemNeurodevelopmental DisordersmedicineAnimalsHumansMacrophage[SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]MicrogliaNeuronmedicine.symptomNeuroscienceComputingMilieux_MISCELLANEOUSdescription
Microglial cells are the resident macrophages of the central nervous system (CNS) and are mainly known for their roles in neuropathologies. However, major recent developments have revealed that these immune cells actively interact with neurons in physiological conditions and can modulate the fate and functions of synapses. Originating from myeloid precursors born in the yolk sac, microglial cells invade the CNS during early embryonic development. As a consequence they can potentially influence neuronal proliferation, migration and differentiation as well as the formation and maturation of neuronal networks, thereby contributing to the entire shaping of the CNS. We review here recent evidence indicating that microglial cells are indeed involved in crucial steps of the CNS development, including neuronal survival and apoptosis, axonal growth, migration of neurons, pruning of supernumerary synapses and functional maturation of developing synapses. We also discuss current hypotheses proposing that diverting microglial cells of their physiological functions, by promoting the expression of an immune phenotype during development, may be central to neurodevelopmental disorders such as autism, schizophrenia and epilepsy.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-02-01 |