MicroRNA-134 modulates resistance to doxorubicin in human breast cancer cells by downregulating ABCC1.
Biotechnol Lett
; 37(12): 2387-94, 2015 Dec.
Article
en En
| MEDLINE
| ID: mdl-26318721
ABSTRACT
OBJECTIVES:
To investigate the role of microRNAs in doxorubicin resistance of breast cancer cells.RESULTS:
MicroRNA-134 was down-regulated in doxorubicin-resistant and doxorubicin-sensitive breast cancer samples and MCF-7/ADR cell lines. After transfection of miR-134 mimics, an MTT assay confirmed that the MCF-7/ADR cell proliferation was inhibited. In the presence of doxorubicin, there was inhibition of cell proliferation. Transfection of miR-134 mimics induced MCF-7/ADR cell apoptosis. The expression of ABCC1 was significantly upregulated in doxorubicin-resistant or -sensitive breast cancer tissues and MCF-7/ADR cell lines. Over-expression of miR-134 decreased the expression of ABCC1 at the protein level.CONCLUSION:
MicroRNA-134 modulates resistance to doxorubicin in breast cancer cells by downregulating the expression of ABCC1 which is known to encode the multidrug resistance-associated protein 1.Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Neoplasias de la Mama
/
Doxorrubicina
/
Regulación hacia Abajo
/
Resistencia a Antineoplásicos
/
Proteínas Asociadas a Resistencia a Múltiples Medicamentos
/
MicroARNs
/
Antibióticos Antineoplásicos
Límite:
Humans
Idioma:
En
Año:
2015
Tipo del documento:
Article