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Vanillin extracted from proso and barnyard millets induces cell cycle inhibition and apoptotic cell death in MCF-7 cell line


 Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Chengalpattu, Chennai, Tamil Nadu, India

Correspondence Address:
Nageswaran Sivalingam,
Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Chengalpattu District - 603 203, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jcrt.JCRT_1128_19

Context: Consuming whole grain food has been motivated due to numerous health benefits arising from their bioactive components. Aims: This study aims to study whether the active compound extracted from Proso and Barnyard millets inhibits cell proliferation and induces apoptotic cell death in MCF-7 cell line. Materials and Methods: Cell proliferative effect was assessed by 3-(4, 5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay using MCF-7 cell line. Cytotoxicity was determined by release of lactate dehydrogenase (LDH) enzyme from cells. Apoptotic morphological changes in MCF-7 cells were observe under fluorescence microscope using double staining of Hoeschst 33342/propidium iodide (PI). Induction of apoptosis was analyzed using Annexin V-fluorescein isothiocyanate/PI through flow cytometry. Results: In this study, cell proliferative effect of the bioactive compounds from proso millet (Compound 1) and barnyard millet (Compound 2) was evaluated using MCF-7 cell line. Both the compounds significantly inhibited the proliferation of MCF-7 cells after treated with 250 μg/ml and 1000 μg/ml concentration for 48 h. Cytotoxic activity of compounds was assessed by the release of LDH showed that these extracted compounds were not toxic to the cells. Apoptosis was confirmed by Hoechst 33,342/PI dual-staining, Annexin V-FTIC/PI staining, and flow cytometry results of cell cycle analysis shows that there was a significant cell arrest in the G0/G1 phase and increased the apoptotic cells in sub-G0 phase in a dose-dependent manner. Conclusions: This study suggests that the extracted vanillin compound from these millets have effectively induced apoptotic cell death in breast cancer cell line.


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    -  Ramadoss DP
    -  Sivalingam N
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