Autophagy Mediates Astrogenesis in Adult Hippocampal Neural Stem Cells
Experimental Neurobiology
;
: 229-246, 2019.
Artigo
em Inglês
| WPRIM
| ID: wpr-739542
ABSTRACT
Neural stem cells (NSCs) have the ability to self-renew and differentiate into neurons, oligodendrocytes, and astrocytes. Highly dynamic nature of NSC differentiation requires the intimate involvement of catabolic processes such as autophagy. Autophagy is a major intracellular degradation pathway necessary for cellular homeostasis and remodeling. Autophagy is important for mammalian development and its role in neurogenesis has recently drawn much attention. However, little is known about how autophagy is associated with differentiation of NSCs into other neural lineages. Here, we report that autophagy plays a critical role in differentiation of adult rat hippocampal neural stem (HCN) cells into astrocytes. During differentiation, autophagy flux peaked at early time points, and remained high. Pharmacological or genetic suppression of autophagy by stable knockdown of Atg7, LC3 or CRISPR-Cas9-mediated knockout (KO) of p62 impaired astrogenesis, while reintroduction of p62 recovered astrogenesis in p62 KO HCN cells. Taken together, our findings suggest that autophagy plays a key role in astrogenesis in adult NSCs.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Autofagia
/
Supressão Genética
/
Diferenciação Celular
/
Oligodendroglia
/
Astrócitos
/
Células-Tronco Adultas
/
Neurogênese
/
Células-Tronco Neurais
/
Homeostase
/
Neurônios
Limite:
Animais
/
Humanos
Idioma:
Inglês
Revista:
Experimental Neurobiology
Ano de publicação:
2019
Tipo de documento:
Artigo
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