Activation of death receptor, DR5 and mitochondria-mediated apoptosis by a 3,4,5-trimethoxybenzyloxy derivative in wild-type and p53 mutant colorectal cancer cell lines

Chan, Zachariah Chee Ken and Leong, Kok Hoong and Kareem, Huda Salah and Norazit, Anwar and Noor, Suzita Mohd and Ariffin, Azhar (2020) Activation of death receptor, DR5 and mitochondria-mediated apoptosis by a 3,4,5-trimethoxybenzyloxy derivative in wild-type and p53 mutant colorectal cancer cell lines. Naunyn-Schmiedebergs Archives of Pharmacology, 393 (3). pp. 405-417. ISSN 0028-1298, DOI https://doi.org/10.1007/s00210-019-01730-2.

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Abstract

The rationale of designing compounds containing a (3,4,5-trimethoxybenzyloxy) phenyl moiety is largely due to its potential antioxidant and cytotoxic activities. A previous study focused on its antioxidant mechanism, whereas in this study, we investigated the cytotoxicity of a series of 28 analogues and the mechanism of apoptosis of the most cytotoxic compound against wild-type (HCT-116) and p53 mutant (HT-29) colorectal cancer cell lines. The series of analogues comprise of different families, namely hydrazone, oxadiazole, thiosemicarbazides and triazoles. In the initial cytotoxicity screening, N-(3,4,5-trimethoxybenzylidene)-4-(3,4,5-trimethoxybenzyloxy) benzohydrazide, henceforth known as, P5H, was found to be most cytotoxic against human colorectal cancer cell lines (IC50 for HCT-116=11.79 mu M and HT-29=18.52 mu M). Additionally, P5H was found to have some degree of selectivity towards cancer cells compared to normal human colon cells (CCD-112 CoN). Subsequent investigation had brought insight on P5H ability to induce apoptosis in both HCT-116 and HT-29 cell lines. Cell cycle analysis showed both cell lines were arrested at the G2/M phase upon treatment. Our study concluded that P5H induced the death receptor, DR5 in HCT-116 and mitochondria-mediated apoptosis pathway in HT-29. Therefore, P5H may be a promising candidate as a chemotherapy agent against colon cancer.

Item Type: Article
Funders: Universiti Malaya (RP021-14AFR), Universiti Malaya (RP035-17AFR), Ministry of Education, Malaysia (FP024-2014A)
Uncontrolled Keywords: Apoptosis; Colorectal cancer; Trimethoxybenzyloxy; HCT-116; HT-29; p53
Subjects: Q Science > QD Chemistry
R Medicine > R Medicine (General)
R Medicine > RS Pharmacy and materia medica
Divisions: Faculty of Medicine
Faculty of Science > Department of Chemistry
Faculty of Pharmacy
Depositing User: Ms Zaharah Ramly
Date Deposited: 02 Dec 2022 07:28
Last Modified: 02 Dec 2022 07:29
URI: http://eprints.um.edu.my/id/eprint/38157

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