RESUMO
The single crystals of two novel copper(ii)-based complexes containing l-methioninol-derived Schiff bases were obtained and characterized. The nanoparticles of these complexes were prepared and their cellular uptake was measured in MDA-MB-231 cells and HUVECs. It was found that these complexes could remarkably induce apoptosis, inhibit proliferation, suppress migration and metastasis, and inhibit angiogenesis and the growth of triple-negative breast cancer derived from MDA-MB-231 cells in vitro. Meanwhile, these complexes exhibit anticancer and antiangiogenic functions by activating the important protein molecules VEGFR2, FAK, AKT and Erk1/2 or their phosphorylated molecules p-VEGFR2, p-FAK, p-AKT, and p-Erk1/2 in the VEGF/VEGFR2 signaling pathway, collapsing the mitochondrial membrane potential, and damaging the level of reactive oxygen species.
Assuntos
Antineoplásicos/farmacologia , Neoplasias da Mama/tratamento farmacológico , Complexos de Coordenação/farmacologia , Cobre/farmacologia , Nanopartículas/química , Inibidores de Proteínas Quinases/farmacologia , Antineoplásicos/síntese química , Antineoplásicos/química , Apoptose/efeitos dos fármacos , Neoplasias da Mama/metabolismo , Neoplasias da Mama/patologia , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Complexos de Coordenação/síntese química , Complexos de Coordenação/química , Cobre/química , Cristalografia por Raios X , Ensaios de Seleção de Medicamentos Antitumorais , Feminino , Humanos , Modelos Moleculares , Estrutura Molecular , Tamanho da Partícula , Inibidores de Proteínas Quinases/síntese química , Inibidores de Proteínas Quinases/química , Transdução de Sinais/efeitos dos fármacos , Propriedades de Superfície , Células Tumorais Cultivadas , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores , Fator A de Crescimento do Endotélio Vascular/metabolismo , Receptor 2 de Fatores de Crescimento do Endotélio Vascular/antagonistas & inibidores , Receptor 2 de Fatores de Crescimento do Endotélio Vascular/metabolismoRESUMO
Three novel single crystals of the metal-based complexes Cu-1, Cu-2, and Co-1 were obtained and characterized. Compared with Cu-2 and Co-1, Cu-1 showed remarkable activities of anti-cervical cancer, anti-cisplatin-resistant non-small cell lung cancer and anti-angiogenesis by downregulating the expressions of important proteins in the VEGF/VEGFR2 signaling pathway to inhibit angiogenesis and cancer cell proliferation, induce apoptosis, and suppress migration and metastasis. Moreover, Cu-1 dramatically inhibited the expression of the anti-apoptotic protein Bcl-2 and up-regulated the expressions of the proapoptotic proteins caspase-9 and Bax to induce the apoptosis of tumor cells, simultaneously decreasing the density of endothelial cells to inhibit tumor angiogenesis in cisplatin-resistant tumors.