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- W2952573669 abstract "A characteristic subset of microglia expressing CD11c appears in response to brain damage. However, the functional role of CD11c+ microglia, as well as the mechanism of its induction, are poorly understood. Here we report that the genetic ablation of signal regulatory protein α (SIRPα), a membrane protein, induced the emergence of CD11c+ microglia in the brain white matter. Mice lacking CD47, a physiological ligand of SIRPα, and microglia-specific SIRPα-knockout mice exhibited the same phenotype, suggesting that an interaction between microglial SIRPα and CD47 on neighbouring cells suppressed the emergence of CD11c+ microglia. A lack of SIRPα did not cause detectable damage to the white matter, but resulted in the increased expression of genes whose expression is characteristic of the repair phase after demyelination. In addition, cuprizone-induced demyelination was alleviated by the microglia-specific ablation of SIRPα. Thus, microglial SIRPα suppresses the induction of CD11c+ microglia that have the potential to accelerate the repair of damaged white matter." @default.
- W2952573669 created "2019-06-27" @default.
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- W2952573669 date "2019-03-26" @default.
- W2952573669 modified "2023-10-16" @default.
- W2952573669 title "Microglial SIRPα regulates the emergence of CD11c+ microglia and demyelination damage in white matter" @default.
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- W2952573669 doi "https://doi.org/10.7554/elife.42025" @default.
- W2952573669 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6435324" @default.
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