The influence of environment and origin on brain resident macrophages and implications for therapy

被引:82
作者
Bennett, Mariko L. [1 ]
Bennett, F. Chris [2 ]
机构
[1] Childrens Hosp Philadelphia, Dept Pediat, Philadelphia, PA 19104 USA
[2] Univ Penn, Dept Psychiat, Perelman Sch Med, Philadelphia, PA 19104 USA
关键词
HEMATOPOIETIC-CELL TRANSPLANTATION; X-LINKED ADRENOLEUKODYSTROPHY; MICROGLIA-LIKE CELLS; YOLK-SAC; PRIMITIVE MACROPHAGES; ALZHEIMERS-DISEASE; AXONAL SPHEROIDS; PROGENITOR-CELL; GENE-THERAPY; FETAL LIVER;
D O I
10.1038/s41593-019-0545-6
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Microglia are the tissue-resident macrophages of the brain and spinal cord. They are critical players in the development, normal function, and decline of the CNS. Unlike traditional monocyte-derived macrophages, microglia originate from primitive hematopoiesis in the embryonic yolk sac and self-renew throughout life. Microglia also have a unique genetic signature among tissue resident macrophages. Recent studies identify the contributions of both brain environment and developmental history to the transcriptomic identity of microglia. Here we review this emerging literature and discuss the potential implications of origin on microglial function, with particular focus on existing and future therapies using bone-marrow- or stem-cell-derived cells for the treatment of neurological diseases. Framed around the potential use of microglia as new cellular therapies for brain disease, Bennett and Bennett review new discoveries about the effects of developmental origin and environmental signals on brain macrophage identity and function.
引用
收藏
页码:157 / 166
页数:10
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