Lymphotoxin α, a novel target of posttranscriptional gene regulation by HuR in HepG2 cells.
FEBS Lett
; 589(15): 1943-50, 2015 Jul 08.
Article
en En
| MEDLINE
| ID: mdl-25980610
The role of the RNA-binding protein human antigen R (HuR) in hepatocarcinogenesis is still elusive. By employing short hairpin (sh)RNA-dependent knockdown approach, we demonstrate that lymphotoxin α (LTα) is a target of posttranscriptional gene regulation by HuR in hepatocellular carcinoma (HepG2) cells. Consequently, the increased mRNA decay upon HuR depletion significantly affects lymphotoxin expression at both, the mRNA and protein level. Biotin-pulldown assay showed that HuR specifically interacts with the 3'-untranslated region (3'-UTR) of the LTα mRNA. Furthermore, electrophoretic mobility shift assay (EMSA) implicates that the RNA-binding critically depends on the RNA recognition motif 2 (RRM2) and the hinge region of HuR.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Procesamiento Postranscripcional del ARN
/
Regulación de la Expresión Génica
/
Linfotoxina-alfa
/
Proteínas ELAV
Límite:
Humans
Idioma:
En
Revista:
FEBS Lett
Año:
2015
Tipo del documento:
Article
País de afiliación:
Alemania
Pais de publicación:
Reino Unido