Document Type: Research article
Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Iran.
Laboratory of Molecular Neuroscience, Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.
Research Department of Biotechnology, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran.
Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khoramabad, Iran.
Satureja khuzestanica Jamzad (Marzeh Khuzestani in Persian) is an endemic plant that is
widely distributed in the southern part of Iran. Despite the number of papers published on this
plant, no one has focused on its anticancer effects. Therefore, the present study was designed
to investigate the selective cytotoxic and anti-proliferative properties of satureja khuzestanica
total extract (SKE). MCF-7 human breast cancer cells were used in this study. Cytotoxicity
of the extract was determined using MTT and neutral red assaysafter 24 h treatment period.
Biochemical markers of apoptosis (caspase-3, Bax, Bcl-2) and cell proliferation (cyclin D1)
were evaluated by immunoblotting. Vincristine was used to evaluate the synergic effect of
extract with an anticancer drug. The data showed that treatment of cells with SKE (150 and 200
μg/mL for 24 h) significantly reduced cell viability, activated caspase 3 and increased Bax/Bcl2
ratio. In addition, cyclin D1 expression was significantly decreased in the SKE-treated cells. In
addition, concomitant treatment of the MCF-7 cells with SKE and vincristine produced a potent
anti-proliferative and pro-apoptotic effect compared to extract or drug alone. In conclusion,
satureja extract has a potential anti-cancer property against human breast cancer cells and its
combination with chemotherapeutic agent vincristine may induce cell death effectively and be
a potent modality to treat this type of cancer.