microRNA-205 represses breast cancer metastasis by perturbing the rab coupling protein [RCP]-mediated integrin ß1 recycling on the membrane.
Apoptosis
; 29(1-2): 191-209, 2024 Feb.
Article
em En
| MEDLINE
| ID: mdl-37945815
ABSTRACT
During cancer cell invasion, integrin undergoes constant endo/exocytic trafficking. It has been found that the recycling ability of integrin ß1 through Rab11-controlled long loop pathways is directly associated with cancer invasion. Previous studies showed that gain-of-function mutant p53 regulates the Rab-coupling protein [RCP]-mediated integrin ß1 recycling by inactivating tumor suppressor TAp63. So, we were interested to investigate the involvement of miR-205 in this process. In the current study first, we evaluated that the lower expression of miR-205 in MDA-MB-231 cell line is associated with high motility and invasiveness. Further investigation corroborated that miR-205 directly targets RCP resulting in attenuated RCP-mediated integrin ß1 recycling. Overexpression of TAp63 validates our in vitro findings. To appraise the anti-metastatic role of miR-205, we developed two in vivo experimental models- xenograft-chick embryo and xenograft-immunosuppressed BALB/c mice. Our in vivo results support the negative effect of miR-205 on metastasis. Therefore, these findings advocate the tumor suppressor activity of miR-205 in breast cancer cells and suggest that in the future development of miR-205-targeting RNAi therapeutics could be a smart alternative approach to prevent the metastatic fate of the disease.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Mama
/
MicroRNAs
Limite:
Animals
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Female
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Humans
Idioma:
En
Revista:
Apoptosis
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Índia