Thymoquinone from Nigella sativa was more potent than cisplatin in eliminating of SiHa cells via apoptosis with down-regulation of Bcl-2 protein

Thymoquinone (TQ), the active constituent of Nigella sativa or black cumin exhibited cytotoxic effects in several cancer cell lines. In this study, the cytotoxicity of TQ in human cervical squamous carcinoma cells (SiHa) was investigated. TQ was cytotoxic towards SiHa cells with IC50 values of 10.67...

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Main Authors: Ng, Wei Keat, Saiful Yazan, Latifah, Ismail, Maznah
Format: Article
Language:English
Published: Elsevier 2011
Online Access:http://psasir.upm.edu.my/id/eprint/24708/
http://psasir.upm.edu.my/id/eprint/24708/1/Thmoquinone%20from%20Nigella%20sativa%20was%20more%20potent%20than%20cisplatin%20in%20eliminating%20of%20SiHa%20cells%20via%20apoptosis%20with%20down.pdf
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author Ng, Wei Keat
Saiful Yazan, Latifah
Ismail, Maznah
author_facet Ng, Wei Keat
Saiful Yazan, Latifah
Ismail, Maznah
author_sort Ng, Wei Keat
building UPM Institutional Repository
collection Online Access
description Thymoquinone (TQ), the active constituent of Nigella sativa or black cumin exhibited cytotoxic effects in several cancer cell lines. In this study, the cytotoxicity of TQ in human cervical squamous carcinoma cells (SiHa) was investigated. TQ was cytotoxic towards SiHa cells with IC50 values of 10.67 ± 0.12 and 9.33 ± 0.19 μg/mL as determined by MTT assay and trypan blue dye exclusion test, respectively, after 72 h of incubation. TQ was more cytotoxic towards SiHa cells compared to cisplatin. Interestingly, TQ was less cytotoxic towards the normal cells (3T3-L1 and Vero). Cell cycle analysis performed by flowcytometer showed a significant increase in the accumulation of TQ-treated cells at sub-G1 phase, indicating induction of apoptosis by the compound. Apoptosis induction by TQ was further confirmed by Annexin V/PI and AO/PI staining. Significant elevation of p53 and down-regulation of the anti-apoptotic Bcl-2 protein was found in the treated cells, without any changes in the expression of the pro-apoptotic Bax protein. In conclusion, thymoquinone from N. sativa was more potent than cisplatin in elimination of SiHa cells via apoptosis with down-regulation of Bcl-2 protein.
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spelling upm-247082018-04-09T09:21:51Z http://psasir.upm.edu.my/id/eprint/24708/ Thymoquinone from Nigella sativa was more potent than cisplatin in eliminating of SiHa cells via apoptosis with down-regulation of Bcl-2 protein Ng, Wei Keat Saiful Yazan, Latifah Ismail, Maznah Thymoquinone (TQ), the active constituent of Nigella sativa or black cumin exhibited cytotoxic effects in several cancer cell lines. In this study, the cytotoxicity of TQ in human cervical squamous carcinoma cells (SiHa) was investigated. TQ was cytotoxic towards SiHa cells with IC50 values of 10.67 ± 0.12 and 9.33 ± 0.19 μg/mL as determined by MTT assay and trypan blue dye exclusion test, respectively, after 72 h of incubation. TQ was more cytotoxic towards SiHa cells compared to cisplatin. Interestingly, TQ was less cytotoxic towards the normal cells (3T3-L1 and Vero). Cell cycle analysis performed by flowcytometer showed a significant increase in the accumulation of TQ-treated cells at sub-G1 phase, indicating induction of apoptosis by the compound. Apoptosis induction by TQ was further confirmed by Annexin V/PI and AO/PI staining. Significant elevation of p53 and down-regulation of the anti-apoptotic Bcl-2 protein was found in the treated cells, without any changes in the expression of the pro-apoptotic Bax protein. In conclusion, thymoquinone from N. sativa was more potent than cisplatin in elimination of SiHa cells via apoptosis with down-regulation of Bcl-2 protein. Elsevier 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/24708/1/Thmoquinone%20from%20Nigella%20sativa%20was%20more%20potent%20than%20cisplatin%20in%20eliminating%20of%20SiHa%20cells%20via%20apoptosis%20with%20down.pdf Ng, Wei Keat and Saiful Yazan, Latifah and Ismail, Maznah (2011) Thymoquinone from Nigella sativa was more potent than cisplatin in eliminating of SiHa cells via apoptosis with down-regulation of Bcl-2 protein. Toxicology in Vitro, 25 (7). pp. 1392-1398. ISSN 0887-2333; ESSN: 1879-3177 10.1016/j.tiv.2011.04.030
spellingShingle Ng, Wei Keat
Saiful Yazan, Latifah
Ismail, Maznah
Thymoquinone from Nigella sativa was more potent than cisplatin in eliminating of SiHa cells via apoptosis with down-regulation of Bcl-2 protein
title Thymoquinone from Nigella sativa was more potent than cisplatin in eliminating of SiHa cells via apoptosis with down-regulation of Bcl-2 protein
title_full Thymoquinone from Nigella sativa was more potent than cisplatin in eliminating of SiHa cells via apoptosis with down-regulation of Bcl-2 protein
title_fullStr Thymoquinone from Nigella sativa was more potent than cisplatin in eliminating of SiHa cells via apoptosis with down-regulation of Bcl-2 protein
title_full_unstemmed Thymoquinone from Nigella sativa was more potent than cisplatin in eliminating of SiHa cells via apoptosis with down-regulation of Bcl-2 protein
title_short Thymoquinone from Nigella sativa was more potent than cisplatin in eliminating of SiHa cells via apoptosis with down-regulation of Bcl-2 protein
title_sort thymoquinone from nigella sativa was more potent than cisplatin in eliminating of siha cells via apoptosis with down-regulation of bcl-2 protein
url http://psasir.upm.edu.my/id/eprint/24708/
http://psasir.upm.edu.my/id/eprint/24708/
http://psasir.upm.edu.my/id/eprint/24708/1/Thmoquinone%20from%20Nigella%20sativa%20was%20more%20potent%20than%20cisplatin%20in%20eliminating%20of%20SiHa%20cells%20via%20apoptosis%20with%20down.pdf