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Disturbance of Bcl-2, Bax, Caspase-3, Ki-67 and C-myc expression in acute and subchronic exposure to benzo(a)pyrene in cervix

•Benzo(a)pyrene disturbed the expression of Bcl-2, C-myc, Ki-67, Caspase-3 and Bax genes in cervix.•The induction indicated a dose-dependent manner in acute or subchronic treatments. Epidemiological studies have demonstrated that cigarette smoking is an important cofactor or an independent risk fact... Full description

Journal Title: Acta Histochemica March 2016, Vol.118(2), pp.63-73
Main Author: Gao, Meili
Other Authors: Li, Yongfei , Ji, Xiaoying , Xue, Xiaochang , Chen, Lan , Feng, Guodong , Zhang, Huqin , Wang, Huichun , Shah, Walayat , Hou, Zhanwu , Kong, Yu
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: ScienceDirect (Elsevier B.V.)
ID: ISSN: 0065-1281 ; DOI: 10.1016/j.acthis.2015.11.002
Link: http://dx.doi.org/10.1016/j.acthis.2015.11.002
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recordid: sciversesciencedirect_elsevierS0065-1281(15)30020-9
title: Disturbance of Bcl-2, Bax, Caspase-3, Ki-67 and C-myc expression in acute and subchronic exposure to benzo(a)pyrene in cervix
format: Article
creator:
  • Gao, Meili
  • Li, Yongfei
  • Ji, Xiaoying
  • Xue, Xiaochang
  • Chen, Lan
  • Feng, Guodong
  • Zhang, Huqin
  • Wang, Huichun
  • Shah, Walayat
  • Hou, Zhanwu
  • Kong, Yu
subjects:
  • Benzo( a )Pyrene
  • Genotoxic Effects
  • Disturbance
  • Cervix
ispartof: Acta Histochemica, March 2016, Vol.118(2), pp.63-73
description: •Benzo(a)pyrene disturbed the expression of Bcl-2, C-myc, Ki-67, Caspase-3 and Bax genes in cervix.•The induction indicated a dose-dependent manner in acute or subchronic treatments. Epidemiological studies have demonstrated that cigarette smoking is an important cofactor or an independent risk factor for the development of cervical cancer. Benzo(a)pyrene (BaP) is one of the most potent tobacco smoke carcinogens in tobacco smoke. BaP induced DNA damage and over expression in p53 cervical tissue of mice as demonstrated in our previous study. Here we present the findings of exposure to BaP on the expression of Bcl-2, C-myc, Ki-67, Caspase-3 and Bax genes in mouse cervix. Acute intraperitoneal administration of BaP (12.5, 25, 50, 100mg/kg body weight) to ICR female mice induced a significant increase in Bcl-2, C-myc, Ki-67 mRNA and protein level till 72h except in Bcl-2 at 24h with 12.5, 25, 50mg/kg as well as at 48h with 12.5mg/kg body weight post treatment. A significant increase was also seen in Caspase-3 and Bax mRNA and protein level with peak level at 24h and gradual decrease till 72h, however, the expression of caspase-3 increased while that of Bax decreased with increasing dose of Bap after 24h. In sub chronic intraperitoneal and oral gavage administration of BaP (2.5, 5, 10mg/kg body weight), similar significant increase was observed for all the examined genes as compared to the control and vehicle groups, however the expression of Bax decreased in a dose dependent manner. The findings of this study will help in further understanding the molecular mechanism of BaP induced carcinogenesis of cervical cancer.
language: eng
source: ScienceDirect (Elsevier B.V.)
identifier: ISSN: 0065-1281 ; DOI: 10.1016/j.acthis.2015.11.002
fulltext: fulltext
issn:
  • 00651281
  • 0065-1281
url: Link


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titleDisturbance of Bcl-2, Bax, Caspase-3, Ki-67 and C-myc expression in acute and subchronic exposure to benzo(a)pyrene in cervix
creatorGao, Meili ; Li, Yongfei ; Ji, Xiaoying ; Xue, Xiaochang ; Chen, Lan ; Feng, Guodong ; Zhang, Huqin ; Wang, Huichun ; Shah, Walayat ; Hou, Zhanwu ; Kong, Yu
ispartofActa Histochemica, March 2016, Vol.118(2), pp.63-73
identifierISSN: 0065-1281 ; DOI: 10.1016/j.acthis.2015.11.002
subjectBenzo( a )Pyrene ; Genotoxic Effects ; Disturbance ; Cervix
description•Benzo(a)pyrene disturbed the expression of Bcl-2, C-myc, Ki-67, Caspase-3 and Bax genes in cervix.•The induction indicated a dose-dependent manner in acute or subchronic treatments. Epidemiological studies have demonstrated that cigarette smoking is an important cofactor or an independent risk factor for the development of cervical cancer. Benzo(a)pyrene (BaP) is one of the most potent tobacco smoke carcinogens in tobacco smoke. BaP induced DNA damage and over expression in p53 cervical tissue of mice as demonstrated in our previous study. Here we present the findings of exposure to BaP on the expression of Bcl-2, C-myc, Ki-67, Caspase-3 and Bax genes in mouse cervix. Acute intraperitoneal administration of BaP (12.5, 25, 50, 100mg/kg body weight) to ICR female mice induced a significant increase in Bcl-2, C-myc, Ki-67 mRNA and protein level till 72h except in Bcl-2 at 24h with 12.5, 25, 50mg/kg as well as at 48h with 12.5mg/kg body weight post treatment. A significant increase was also seen in Caspase-3 and Bax mRNA and protein level with peak level at 24h and gradual decrease till 72h, however, the expression of caspase-3 increased while that of Bax decreased with increasing dose of Bap after 24h. In sub chronic intraperitoneal and oral gavage administration of BaP (2.5, 5, 10mg/kg body weight), similar significant increase was observed for all the examined genes as compared to the control and vehicle groups, however the expression of Bax decreased in a dose dependent manner. The findings of this study will help in further understanding the molecular mechanism of BaP induced carcinogenesis of cervical cancer.
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titleDisturbance of Bcl-2, Bax, Caspase-3, Ki-67 and C-myc expression in acute and subchronic exposure to benzo(a)pyrene in cervix
description•Benzo(a)pyrene disturbed the expression of Bcl-2, C-myc, Ki-67, Caspase-3 and Bax genes in cervix.•The induction indicated a dose-dependent manner in acute or subchronic treatments. Epidemiological studies have demonstrated that cigarette smoking is an important cofactor or an independent risk factor for the development of cervical cancer. Benzo(a)pyrene (BaP) is one of the most potent tobacco smoke carcinogens in tobacco smoke. BaP induced DNA damage and over expression in p53 cervical tissue of mice as demonstrated in our previous study. Here we present the findings of exposure to BaP on the expression of Bcl-2, C-myc, Ki-67, Caspase-3 and Bax genes in mouse cervix. Acute intraperitoneal administration of BaP (12.5, 25, 50, 100mg/kg body weight) to ICR female mice induced a significant increase in Bcl-2, C-myc, Ki-67 mRNA and protein level till 72h except in Bcl-2 at 24h with 12.5, 25, 50mg/kg as well as at 48h with 12.5mg/kg body weight post treatment. A significant increase was also seen in Caspase-3 and Bax mRNA and protein level with peak level at 24h and gradual decrease till 72h, however, the expression of caspase-3 increased while that of Bax decreased with increasing dose of Bap after 24h. In sub chronic intraperitoneal and oral gavage administration of BaP (2.5, 5, 10mg/kg body weight), similar significant increase was observed for all the examined genes as compared to the control and vehicle groups, however the expression of Bax decreased in a dose dependent manner. The findings of this study will help in further understanding the molecular mechanism of BaP induced carcinogenesis of cervical cancer.
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authorGao, Meili ; Li, Yongfei ; Ji, Xiaoying ; Xue, Xiaochang ; Chen, Lan ; Feng, Guodong ; Zhang, Huqin ; Wang, Huichun ; Shah, Walayat ; Hou, Zhanwu ; Kong, Yu
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abstract•Benzo(a)pyrene disturbed the expression of Bcl-2, C-myc, Ki-67, Caspase-3 and Bax genes in cervix.•The induction indicated a dose-dependent manner in acute or subchronic treatments. Epidemiological studies have demonstrated that cigarette smoking is an important cofactor or an independent risk factor for the development of cervical cancer. Benzo(a)pyrene (BaP) is one of the most potent tobacco smoke carcinogens in tobacco smoke. BaP induced DNA damage and over expression in p53 cervical tissue of mice as demonstrated in our previous study. Here we present the findings of exposure to BaP on the expression of Bcl-2, C-myc, Ki-67, Caspase-3 and Bax genes in mouse cervix. Acute intraperitoneal administration of BaP (12.5, 25, 50, 100mg/kg body weight) to ICR female mice induced a significant increase in Bcl-2, C-myc, Ki-67 mRNA and protein level till 72h except in Bcl-2 at 24h with 12.5, 25, 50mg/kg as well as at 48h with 12.5mg/kg body weight post treatment. A significant increase was also seen in Caspase-3 and Bax mRNA and protein level with peak level at 24h and gradual decrease till 72h, however, the expression of caspase-3 increased while that of Bax decreased with increasing dose of Bap after 24h. In sub chronic intraperitoneal and oral gavage administration of BaP (2.5, 5, 10mg/kg body weight), similar significant increase was observed for all the examined genes as compared to the control and vehicle groups, however the expression of Bax decreased in a dose dependent manner. The findings of this study will help in further understanding the molecular mechanism of BaP induced carcinogenesis of cervical cancer.
pubElsevier GmbH
doi10.1016/j.acthis.2015.11.002
date2016-03