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p53 mediates the cellular responses to cis-trimethoxystilbene in breast cancer cell lines

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Autor(es):
Paulino, Julia Mirian ; Goncalves, Natalia dos Santos ; Andrada, Heber Eduardo ; Ribeiro, Arthur Barcelos ; Ramos, Carlos Henrique Inacio ; Mizuno, Cassia Suemi ; dos Santos, Raquel Alves
Número total de Autores: 7
Tipo de documento: Artigo Científico
Fonte: NATURAL PRODUCT RESEARCH; v. N/A, p. 8-pg., 2025-09-27.
Resumo

The present study investigated the cellular inhibitory effects of cis-trimethoxystilbene (cis-TMS) on the chemoresistant MDA-MB-231 breast cancer cell line and the role of p53 in mediating the cellular responses to this compound. Treatment with cis-TMS significantly inhibited the growth of MDA-MB-231 cells, reducing the cell viability by approximately 75% at 2.5 mu M and increasing apoptosis rates to nearly 20%. Silencing p53 in MCF-10A and MCF-7 cell lines revealed that cis-TMS-induced apoptosis and cell cycle arrest were p53-dependent. The interaction studies suggest that cis-TMS does not alter the conformation of p53 at low concentrations but may influence its activity at higher doses. The results suggest that cis-TMS selectively targets cancer cells with functional p53, offering a potential targeted therapy approach. However, the reliance on p53 and the risk of genomic instability pose limitations, requiring further research to optimise the therapeutic strategies involving cis-TMS. (AU)

Processo FAPESP: 18/16461-0 - Efeito do tratamento com cis-trimetoxiestilbeno após o silenciamento de TP53 por siRNA nas linhagens tumorais MCF-7 e MDA-MB-231: uma abordagem celular e molecular
Beneficiário:Raquel Alves dos Santos
Modalidade de apoio: Auxílio à Pesquisa - Regular