Nuclear lamina erosion-induced resurrection of endogenous retroviruses underlies neuronal aging.
Cell Rep
; 42(6): 112593, 2023 06 27.
Article
en En
| MEDLINE
| ID: mdl-37261950
ABSTRACT
The primate frontal lobe (FL) is sensitive to aging-related neurocognitive decline. However, the aging-associated molecular mechanisms remain unclear. Here, using physiologically aged non-human primates (NHPs), we depicted a comprehensive landscape of FL aging with multidimensional profiling encompassing bulk and single-nucleus transcriptomes, quantitative proteome, and DNA methylome. Conjoint analysis across these molecular and neuropathological layers underscores nuclear lamina and heterochromatin erosion, resurrection of endogenous retroviruses (ERVs), activated pro-inflammatory cyclic GMP-AMP synthase (cGAS) signaling, and cellular senescence in post-mitotic neurons of aged NHP and human FL. Using human embryonic stem-cell-derived neurons recapitulating cellular aging in vitro, we verified the loss of B-type lamins inducing resurrection of ERVs as an initiating event of the aging-bound cascade in post-mitotic neurons. Of significance, these aging-related cellular and molecular changes can be alleviated by abacavir, a nucleoside reverse transcriptase inhibitor, either through direct treatment of senescent human neurons in vitro or oral administration to aged mice.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Retrovirus Endógenos
Límite:
Animals
Idioma:
En
Revista:
Cell Rep
Año:
2023
Tipo del documento:
Article
País de afiliación:
China