Wenlu Li, Emiri T Mandeville, Violeta Durán-Laforet, Norito Fukuda, Zhanyang Yu, Yi Zheng, Aaron Held, Ji-Hyun Park, Takafumi Nakano, Masayoshi Tanaka, Jingfei Shi, Elga Esposito, Wanting Niu, Changhong Xing, Kazuhide Hayakawa, Ignacio Lizasoain, Klaus van Leyen, Xunming Ji, Brian J Wainger, Maria A Moro, Eng H Lo
The concept of the neurovascular unit emphasizes the importance of cell-cell signaling between neural, glial, and vascular compartments. In neurogenesis, for example, brain endothelial cells play a key role by supplying trophic support to neural progenitors. Here, we describe a surprising phenomenon where brain endothelial cells may release trans-differentiation signals that convert astrocytes into neural progenitor cells in male mice after stroke. After oxygen-glucose deprivation, brain endothelial cells release microvesicles containing pro-neural factor Ascl1 that enter into astrocytes to induce their trans-differentiation into neural progenitors...
December 19, 2022: Nature Communications