Mutagenic study of benzimidazole derivatives with (+S9) and without (−S9) metabolic activation

Benzimidazole derivatives have a diverse range of biological activities, including antiulcer, antihypertensive, antiviral, antifungal, anti-inflammatory, and anticancer. Despite these activities, previous studies have revealed that some of the derivatives can induce mutations. This study aimed to sc...

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Main Authors: Azahar, Nurul Hafizan, Ab Dullah, Siti Soleha, Abdullah, Rozaini, Ahmat, Norizan, Md. Akim, Abdah, Ab. Hamid, Hasiah
Format: Article
Language:English
Published: MDPI 2019
Online Access:http://psasir.upm.edu.my/id/eprint/38267/1/38267.pdf
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author Azahar, Nurul Hafizan
Ab Dullah, Siti Soleha
Abdullah, Rozaini
Ahmat, Norizan
Md. Akim, Abdah
Ab. Hamid, Hasiah
author_facet Azahar, Nurul Hafizan
Ab Dullah, Siti Soleha
Abdullah, Rozaini
Ahmat, Norizan
Md. Akim, Abdah
Ab. Hamid, Hasiah
author_sort Azahar, Nurul Hafizan
collection UPM
description Benzimidazole derivatives have a diverse range of biological activities, including antiulcer, antihypertensive, antiviral, antifungal, anti-inflammatory, and anticancer. Despite these activities, previous studies have revealed that some of the derivatives can induce mutations. This study aimed to screen for potential mutagenic activities of novel benzimidazole derivatives 1–4 using the Ames test and to study their structure–activity relationship (SAR). An Ames test was carried out on two strains of Salmonella typhimurium (TA98 and TA100) in the absence and presence of metabolic activation. Genetic analysis was performed prior to the Ames test to determine the genotypes of the bacterial tester strains. Both bacterial strains showed dependency on histidine with the presence of rfa mutation, uvrB deletion, and plasmid pKM101. Further, all derivatives tested showed no mutagenic activity in the absence of metabolic activation in both tester strains. However, in the presence of metabolic activation, compound 1 appeared to induce mutation at 2.5 µg/plate when tested against the TA98 strain. These results suggest that the absence of the -OH group at the ortho-position over the phenyl ring might be the cause of increased mutagenic activity in compound 1. Additionally, the presence of mutagenic activity in compound 1 when it was metabolically activated indicates that this compound is a promutagen.
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spelling upm.eprints-382672020-05-04T16:09:45Z http://psasir.upm.edu.my/id/eprint/38267/ Mutagenic study of benzimidazole derivatives with (+S9) and without (−S9) metabolic activation Azahar, Nurul Hafizan Ab Dullah, Siti Soleha Abdullah, Rozaini Ahmat, Norizan Md. Akim, Abdah Ab. Hamid, Hasiah Benzimidazole derivatives have a diverse range of biological activities, including antiulcer, antihypertensive, antiviral, antifungal, anti-inflammatory, and anticancer. Despite these activities, previous studies have revealed that some of the derivatives can induce mutations. This study aimed to screen for potential mutagenic activities of novel benzimidazole derivatives 1–4 using the Ames test and to study their structure–activity relationship (SAR). An Ames test was carried out on two strains of Salmonella typhimurium (TA98 and TA100) in the absence and presence of metabolic activation. Genetic analysis was performed prior to the Ames test to determine the genotypes of the bacterial tester strains. Both bacterial strains showed dependency on histidine with the presence of rfa mutation, uvrB deletion, and plasmid pKM101. Further, all derivatives tested showed no mutagenic activity in the absence of metabolic activation in both tester strains. However, in the presence of metabolic activation, compound 1 appeared to induce mutation at 2.5 µg/plate when tested against the TA98 strain. These results suggest that the absence of the -OH group at the ortho-position over the phenyl ring might be the cause of increased mutagenic activity in compound 1. Additionally, the presence of mutagenic activity in compound 1 when it was metabolically activated indicates that this compound is a promutagen. MDPI 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/38267/1/38267.pdf Azahar, Nurul Hafizan and Ab Dullah, Siti Soleha and Abdullah, Rozaini and Ahmat, Norizan and Md. Akim, Abdah and Ab. Hamid, Hasiah (2019) Mutagenic study of benzimidazole derivatives with (+S9) and without (−S9) metabolic activation. International Journal of Molecular Sciences, 20 (18). art. no. 4324. pp. 1-10. ISSN 1661-6596; ESSN: 1422-0067 https://www.mdpi.com/1422-0067/20/18/4324 10.3390/ijms20184324
spellingShingle Azahar, Nurul Hafizan
Ab Dullah, Siti Soleha
Abdullah, Rozaini
Ahmat, Norizan
Md. Akim, Abdah
Ab. Hamid, Hasiah
Mutagenic study of benzimidazole derivatives with (+S9) and without (−S9) metabolic activation
title Mutagenic study of benzimidazole derivatives with (+S9) and without (−S9) metabolic activation
title_full Mutagenic study of benzimidazole derivatives with (+S9) and without (−S9) metabolic activation
title_fullStr Mutagenic study of benzimidazole derivatives with (+S9) and without (−S9) metabolic activation
title_full_unstemmed Mutagenic study of benzimidazole derivatives with (+S9) and without (−S9) metabolic activation
title_short Mutagenic study of benzimidazole derivatives with (+S9) and without (−S9) metabolic activation
title_sort mutagenic study of benzimidazole derivatives with s9 and without s9 metabolic activation
url http://psasir.upm.edu.my/id/eprint/38267/1/38267.pdf
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