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Original Research Article | OPEN ACCESS

Brassica juncea polysaccharides induce apoptosis of colorectal cancer cells via mitochondrial- and caspase-dependent apoptosis pathways

Li Peng1, Lin Yu2, Chen Yong-Le3

1Department of General Surgery, Baoji Center Hospital, Baoji, Shaanxi, 721008, China; 2Department of Pharmacy, No. 987 Hospital of PLA, Baoji, Shaanxi 721004, China; 3Department of Colorectal Surgery, Baoji Center Hospital, Baoji 721008, China.

For correspondence:-  Chen Yong-Le   Email: xwu31n@163.com

Accepted: 21 October 2021        Published: 30 November 2021

Citation: Peng L, Yu L, Yong-Le C. Brassica juncea polysaccharides induce apoptosis of colorectal cancer cells via mitochondrial- and caspase-dependent apoptosis pathways. Trop J Pharm Res 2021; 20(11):2333-2338 doi: 10.4314/tjpr.v20i11.15

© 2021 The authors.
This is an Open Access article that uses a funding model which does not charge readers or their institutions for access and distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0) and the Budapest Open Access Initiative (http://www.budapestopenaccessinitiative.org/read), which permit unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited..

Abstract

Purpose: To determine the effect of polysaccharides from Gleditsia on apoptosis of colorectal cancer cells, and the mechanism involved.
Methods: Polysaccharides were extracted from Lycium barbarum, and their concentration was more than 85 %. Then, DLD-1 cells were cultured in medium with the polysaccharides at concentrations of 75 and 150 μg/mL. Cell proliferation was determined with MTT (3-(4,5)-dimethylthiahiazo (-z-y1)-3,5-di- phenytetrazoliumromide) assay and colony formation assay, while apoptosis was determined with flow cytometry. Changes in MMP were measured flow cytometrically. The protein levels of PARP, Bcl-2, Bax, and caspases 3 and 9 were determined with Western blot assay.
Results: Cell viability decreased time-dependently. Compared with control without polysaccharide exposure, cell viability, colony forming cells, % apoptosis, red: green fluorescence ratio, and bcl-2 expression were significantly and concentration-dependently decreased, while the expression levels of PARP, Bax, caspase-3 and caspase-8 were significantly increased (p < 0.05).
Conclusion: These results indicate that the polysaccharides suppressed apoptosis of colorectal cancer cells by inhibiting the mitochondrial and caspase-dependent apoptosis pathways. Gleditsia polysaccharide may be used as an adjuvant therapy for colorectal cancer.

Keywords: Coriander polysaccharides, Mitochondrion- and Caspase-dependent apoptosis pathway, Colorectal cancer

Impact Factor
Thompson Reuters (ISI): 0.6 (2023)
H-5 index (Google Scholar): 49 (2023)

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