In vitro anticancer activity of Scrophularia amplexicaulis extracts on MCF-7 and WEHI-164 cell line
Keywords:Scrophularia amplexicaulis, anticancer, cytotoxicity, apoptosis
Scrophularia amplexicaulis is an Iranian endemic plant belonging to the Scrophulariaceae family, which is used in traditional medicine to treat many diseases. The aim of this study was to evaluate the in vitro anticancer activity of S. amplexicaulis extracts against human breast carcinoma (MCF-7) and mouse fibrosarcoma (WEHI-164) cell lines. The ground aerial parts of S. amplexicaulis were soxhlet-extracted with n-hexane, dichloromethane and methanol. MTT assay exhibited that dichloromethane and methanol extracts remarkably inhibited the growth of MCF-7 and WEHI-164 cancer cells in a dose-and time-dependent manner with little cytotoxicity on normal cell line HUVEC. Cell death ELISA, TUNEL assay, and the cleavage of poly ADP-ribose polymerase (PARP) uncovered that the cytotoxic effects of dichloromethane and methanol extracts were attributed to apoptosis in cancerous cells. Furthermore, quantitative real-time PCR revealed significant increases in the mRNA expression levels of p-53, caspase-3, caspase-9, Bax, and also a decrease in Bcl-2 expression. These results suggested that the extracts mainly induced apoptosis via a mitochondria-mediated intrinsic pathway. Notably, dichloromethane extract had higher cytotoxic and apoptotic activities than that of methanol extract, against both cancer cell lines, particularly MCF-7 cells. Our results indicate that S. amplexicaulis may serve as a promising source of potent agents for the treatment of human cancers.
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Copyright (c) 2020 Samira Valiyari, Elham Beiranvand, Azin Samimi, Saeid Yaripour, Behzad Baradaran, Abbas Delazar, Mehdi Forouzesh
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