RESUMO
Prostate cancer is the most common malignancies among men. The present study is aimed at the investigation of dihydroxy gymnemic triacetate (DGT) from Gymnema sylvestre on mitochondrial apoptotic pathway and cell cycle arrest. Treatment of DGT resulted in a dose-dependent inhibition of growth of PC-3 cells. The cell cycle arrest was observed at the G2/M phase and accumulation of apoptotic cells was observed in DGT-treated prostate cancer cell lines. The occurrence of apoptosis in these cells was observed by DNA fragmentation. These events were associated with increased levels of pro-apoptotic proteins Bax, Bad and reduced levels of the antiapoptotic proteins Bcl-2, Bcl-xL and Mcl-1. DGT also induces the activation of caspase-9 and caspase-3. The above results, clearly, suggest that DGT induces apoptosis by the intrinsic pathways which could be very useful for the treatment of prostate cancer.
Assuntos
Proteínas Reguladoras de Apoptose/metabolismo , Apoptose/efeitos dos fármacos , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Compostos Heterocíclicos de 4 ou mais Anéis/farmacologia , Proteínas Inibidoras de Apoptose/metabolismo , Neoplasias da Próstata/tratamento farmacológico , Western Blotting , Ciclo Celular/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Humanos , Masculino , Neoplasias da Próstata/metabolismo , Neoplasias da Próstata/patologia , Células Tumorais CultivadasRESUMO
Fungal infections have been increasing in recent years due to growing number of high-risk patients particularly immuno compromised hosts. Candida is the third- or fourth-most-common isolate in nosocomial bloodstream infections. The increase of fungal resistance to classical drugs, the treatment costs, and the fact that most available antifungal drugs have only fungistatic activity, justify the search for new strategies. Identification of therapeutic compounds from plants has been the centre of attraction ever since they were discovered. It is of interest to document the molecular docking analysis of bioactive compounds present in Mollugo cerviana (L.) SER with the DHFR protein target for antifungal activity. We show the optimal binding features of several compounds from the extract with in vivo and in vitro activities. Results of this showed that all compounds showed good antimicrobial activity and a very good antifungal activity against the target DHFR protein. So, these compounds may act as potential drug molecules after the experimental validation.