The transcription factor Zfp90 regulates the self-renewal and differentiation of hematopoietic stem cells.
Cell Death Dis
; 9(6): 677, 2018 06 07.
Article
em En
| MEDLINE
| ID: mdl-29880802
ABSTRACT
Hematopoietic stem cells (HSCs) can give rise to all blood cells that are essential to defend against pathogen invasion. The defective capability of HSC self-renewal is linked to many serious diseases, such as anemia. However, the potential mechanism regulating HSC self-renewal has not been thoroughly elucidated to date. In this study, we showed that Zfp90 was highly expressed in HSCs. Zfp90 deficiency in the hematopoietic system caused impaired HSPC pools and led to HSC dysfunction. We showed that Zfp90 deletion inhibited HSC proliferation, while HSC apoptosis was not affected. Regarding the mechanism of this effect on HSC proliferation, we found that Zfp90 interacted with Snf2l, a subunit of the NURF complex, to regulate Hoxa9 expression. Ectopic expression of Hoxa9 rescued the HSC repopulation capacity in Zfp90-deficient mice, which indicates that Hoxa9 is the downstream effector of Zfp90. In summary, our findings identify Zfp90 as a key transcription factor in determining the fate of HSCs.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Proteínas Repressoras
/
Células-Tronco Hematopoéticas
/
Diferenciação Celular
/
Autorrenovação Celular
Tipo de estudo:
Prognostic_studies
Limite:
Animals
/
Humans
/
Male
Idioma:
En
Revista:
Cell Death Dis
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
China