A novel TAL1/miR-149* axis accelerates tumor growth of human T cell acute lymphoblastic leukemia.
Int J Clin Exp Pathol
; 11(8): 4026-4034, 2018.
Article
em En
| MEDLINE
| ID: mdl-31949792
ABSTRACT
Background:
Herein, we aimed to investigate the roles of TAL1 and miR-149* in T cell acute lymphoblastic leukemia (T-ALL).Methods:
The biological characteristics, including cell proliferation, cell apoptosis, and cell cycle, were analyzed in Molt4 cells.Results:
ChIP results revealed that miR-149* expression in Jurkat cells transfected with overexpression TAL1 plasmid was higher than that in Jurkat cells alone, while miR-149* expression in Molt-4 cells transfected with knockdown TAL1 plasmid was lower than that in Molt-4 cells alone, suggesting that TAL1 might direct target miR-149*. This was further confirmed by a luciferase activity report assay. Finally, biological functions, such as cell proliferation, cell cycle, and apoptosis of TAL1 and miR-149* were measured by MTT and flow cytometry, respectively. It was uncovered that enhanced TAL1 and miR-149* expression promoted cell proliferation, induced cell cycle arrest in G0/G1 phase, and inhibited apoptosis in Molt-4 cells. In contrast, decreased TAL1 and miR-149* expression suppressed cell proliferation, abolished cell cycle arrest in G0/G1 phase, and accelerated apoptosis in Molt-4 cells.Conclusion:
Thus, these data indicate that TAL1 directly regulates miR-149* expression and TAL1/miR-149* link is implicated in the pathogenesis of T-ALL.
Texto completo:
1
Coleções:
01-internacional
Temas:
Geral
/
Tipos_de_cancer
/
Leucemia
Base de dados:
MEDLINE
Idioma:
En
Revista:
Int J Clin Exp Pathol
Assunto da revista:
PATOLOGIA
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
China