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In vivo chemical reprogramming of astrocytes into neurons

In mammals, many organs lack robust regenerative abilities. Lost cells in impaired tissue could potentially be compensated by converting nearby cells in situ through in vivo reprogramming. Small molecule-induced cell reprogramming offers a temporally flexible and non-integrative strategy for alterin...

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Detalles Bibliográficos
Autores principales: Ma, Yantao, Xie, Handan, Du, Xiaomin, Wang, Lipeng, Jin, Xueqin, Zhang, Qianqian, Han, Yawen, Sun, Shicheng, Wang, Longteng, Li, Xiang, Zhang, Changjiang, Wang, Mengdi, Li, Cheng, Xu, Jun, Huang, Zhuo, Wang, Xiaoqun, Chai, Zhen, Deng, Hongkui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Singapore 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7921425/
https://www.ncbi.nlm.nih.gov/pubmed/33649311
http://dx.doi.org/10.1038/s41421-021-00243-8
Descripción
Sumario:In mammals, many organs lack robust regenerative abilities. Lost cells in impaired tissue could potentially be compensated by converting nearby cells in situ through in vivo reprogramming. Small molecule-induced cell reprogramming offers a temporally flexible and non-integrative strategy for altering cell fate, which is, in principle, favorable for in vivo reprogramming in organs with notoriously poor regenerative abilities, such as the brain. Here, we demonstrate that in the adult mouse brain, small molecules can reprogram astrocytes into neurons. The in situ chemically induced neurons resemble endogenous neurons in terms of neuron-specific marker expression, electrophysiological properties, and synaptic connectivity. Our study demonstrates the feasibility of in vivo chemical reprogramming in the adult mouse brain and provides a potential approach for developing neuronal replacement therapies.