AccScience Publishing / GTM / Volume 1 / Issue 1 / DOI: 10.36922/gtm.v1i1.68
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ORIGINAL RESEARCH ARTICLE

Inhibitory effect of Solanum xanthocarpum on the growth of KB human oral cancer cell line in vitro through ROS-induced mitochondrial pathway

Annamalai Vijayalakshmi1 Venkateshwaran Anitha1 Tawfia M. Mustafa Al-Antary2
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1 Department of Biochemistry, Rabiammal Ahamed Maideen College for Women, Tiruvarur, Tamil Nadu, India
2 Plant Production, Faculty of Agriculture, University of Jordan, Amman, Jordan
Global Translational Medicine 2022 , 1(1), 68; https://doi.org/10.36922/gtm.v1i1.68
Submitted: 14 April 2022 | Accepted: 10 June 2022 | Published: 24 June 2022
© 2022 by the Authors. Licensee AccScience Publishing, Singapore. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution 4.0 International License ( https://creativecommons.org/licenses/by/4.0/ )
Abstract

The aim of the present study was to investigate the effect of Solanum xanthocarpum on KB human oral cancer cells by analyzing its anti-proliferative and apoptotic properties as well as its inhibitory effect on cell adhesion. In this study, the leaves extract of S. xanthocarpum was prepared using the maceration method. Cytotoxic effect of different doses of the S. xanthocarpum extract was assessed using MTT assay. Measurements of reactive oxygen species (ROS), lipid peroxidation and antioxidant enzymes were also performed. In addition, we also studied the impacts of S. xanthocarpum on the apoptosis and mitochondrial membrane potential of KB cells. Determination of antioxidant enzymes and lipid peroxidation was performed using biochemical methods. The S. xanthocarpum showed cytotoxic activity against KB cells with IC50 (200 μg/mL). Besides, DCFH-DA staining and acridine orange/ethidium bromide staining results demonstrated that S. xanthocarpum induced the generation of ROS and apoptosis in KB cells, respectively. Based on the Rh-123 staining results, S. xanthocarpum decreased mitochondrial depolarization in KB cells. Furthermore, the S. xanthocarpum treatment contributed to increased lipid peroxidation, accompanied by reduced activities of superoxide dismutase and catalase, as well as decreased glutathione content. Taken together, these findings indicate that S. xanthocarpum extract might comprise bioactive compounds of therapeutic significance, which can inhibit the growth of KB cells.

Keywords
Oral cancer
Solanum xanthocarpum
MTT
Reactive oxygen species
Mitochondrial membrane potential
Apoptosis
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Conflict of interest
The authors declare that they have no conflicts of interest.
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Global Translational Medicine, Electronic ISSN: 2811-0021, Print ISSN: TBA, Published by AccScience Publishing