Induction of vitellogenin mRNA in juvenile Chinese sturgeon (Acipenser sinensis Gray) treated with 17beta-estradiol and 4-nonylphenol.
Identifieur interne : 000E17 ( Main/Merge ); précédent : 000E16; suivant : 000E18Induction of vitellogenin mRNA in juvenile Chinese sturgeon (Acipenser sinensis Gray) treated with 17beta-estradiol and 4-nonylphenol.
Auteurs : Zhaobin Zhang [République populaire de Chine] ; Jianying Hu ; Wei An ; Fen Jin ; Lihui An ; Shu Tao ; Jingsheng ChenSource :
- Environmental toxicology and chemistry [ 0730-7268 ] ; 2005.
English descriptors
- KwdEn :
- Actins (genetics), Amino Acid Sequence, Animals, Base Sequence, DNA Primers, DNA, Complementary, Endocrine Disruptors (pharmacology), Estradiol (pharmacology), Fishes, Gas Chromatography-Mass Spectrometry, Molecular Sequence Data, Phenols (pharmacology), RNA, Messenger (biosynthesis), RNA, Messenger (genetics), Reverse Transcriptase Polymerase Chain Reaction, Sequence Homology, Amino Acid, Vitellogenins (chemistry), Vitellogenins (genetics).
- MESH :
- chemical , biosynthesis : RNA, Messenger.
- chemical , chemistry : Vitellogenins.
- chemical , genetics : Actins, RNA, Messenger, Vitellogenins.
- chemical , pharmacology : Endocrine Disruptors, Estradiol, Phenols.
- Amino Acid Sequence, Animals, Base Sequence, DNA Primers, DNA, Complementary, Fishes, Gas Chromatography-Mass Spectrometry, Molecular Sequence Data, Reverse Transcriptase Polymerase Chain Reaction, Sequence Homology, Amino Acid.
Abstract
It has been demonstrated that 4-nonylphenol (4-NP) exerts estrogenic effects in diverse fishes. The present study investigated the effects of 4-NP on Chinese sturgeon (Acipenser sinensis Gray) vitellogenin (VTG) gene expression. By reverse transcription-polymerase chain reaction (RT-PCR) using degenerate primers, a 462-base pair fragment of Chinese sturgeon VTG, corresponding to a 154-amino acid sequence, was amplified and sequenced. This sequence exhibited 152/154 identity to the amino acid sequence of white sturgeon (A. transmontano) VTG. Conventional RT-PCR and quantitative real-time RT-PCR were established and used to study the VTG and beta-actin gene expression in the liver of juvenile Chinese sturgeon injected three times with 17beta-estradiol (5 mg/kg body wt/week) or 4-NP (10 or 100 mg/kg/week) in the course of three weeks. Significant induction of VTG gene expression was detected in all treated groups, and no VTG mRNA was detected in the control group. The ratio of VTG to beta-actin analyzed from the results of quantitative real-time RT-PCR reached 0.041 +/- 0.024 (mean +/- SD) in the group receiving 10 mg/kg/week of 4-NP and 4.51 +/- 1.68 in the group receiving 100 mg/kg/week of 4-NP. Chemical analysis of 4-NP showed that the concentrations of 4-NP in the 10 mg/kg/week group and the 100 mg/kg/week group were 2.78 +/- 2.41 and 31.38 +/- 0.26 mcirog/ g wet weight, respectively. Compared with the 4-NP concentrations (0.8-1.92 microg/g wet wt) in fish from the Yangtze River, China, a potential hazard exists regarding 4-NP in Chinese sturgeon. These results represent the first indication of the risk of endocrine-disrupting chemicals for Chinese sturgeon.
PubMed: 16152966
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Hu</name></author><author><name sortKey="An, Wei" sort="An, Wei" uniqKey="An W" first="Wei" last="An">Wei An</name></author><author><name sortKey="Jin, Fen" sort="Jin, Fen" uniqKey="Jin F" first="Fen" last="Jin">Fen Jin</name></author><author><name sortKey="An, Lihui" sort="An, Lihui" uniqKey="An L" first="Lihui" last="An">Lihui An</name></author><author><name sortKey="Tao, Shu" sort="Tao, Shu" uniqKey="Tao S" first="Shu" last="Tao">Shu Tao</name></author><author><name sortKey="Chen, Jingsheng" sort="Chen, Jingsheng" uniqKey="Chen J" first="Jingsheng" last="Chen">Jingsheng Chen</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2005">2005</date><idno type="RBID">pubmed:16152966</idno><idno type="pmid">16152966</idno><idno type="wicri:Area/PubMed/Corpus">000535</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000535</idno><idno type="wicri:Area/PubMed/Curation">000535</idno><idno 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xml:lang="fr">République populaire de Chine</country><wicri:regionArea>College of Environmental Science, Peking University, Beijing 100871</wicri:regionArea><placeName><settlement type="city">Pékin</settlement></placeName><orgName type="university">Université de Pékin</orgName><placeName><settlement type="city">Pékin</settlement><region type="capitale">Pékin</region></placeName></affiliation></author><author><name sortKey="Hu, Jianying" sort="Hu, Jianying" uniqKey="Hu J" first="Jianying" last="Hu">Jianying Hu</name></author><author><name sortKey="An, Wei" sort="An, Wei" uniqKey="An W" first="Wei" last="An">Wei An</name></author><author><name sortKey="Jin, Fen" sort="Jin, Fen" uniqKey="Jin F" first="Fen" last="Jin">Fen Jin</name></author><author><name sortKey="An, Lihui" sort="An, Lihui" uniqKey="An L" first="Lihui" last="An">Lihui An</name></author><author><name sortKey="Tao, Shu" sort="Tao, Shu" uniqKey="Tao S" first="Shu" last="Tao">Shu Tao</name></author><author><name sortKey="Chen, Jingsheng" sort="Chen, Jingsheng" uniqKey="Chen J" first="Jingsheng" last="Chen">Jingsheng Chen</name></author></analytic><series><title level="j">Environmental toxicology and chemistry</title><idno type="ISSN">0730-7268</idno><imprint><date when="2005" type="published">2005</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Actins (genetics)</term><term>Amino Acid Sequence</term><term>Animals</term><term>Base Sequence</term><term>DNA Primers</term><term>DNA, Complementary</term><term>Endocrine Disruptors (pharmacology)</term><term>Estradiol (pharmacology)</term><term>Fishes</term><term>Gas Chromatography-Mass Spectrometry</term><term>Molecular Sequence Data</term><term>Phenols (pharmacology)</term><term>RNA, Messenger (biosynthesis)</term><term>RNA, Messenger (genetics)</term><term>Reverse Transcriptase Polymerase Chain Reaction</term><term>Sequence Homology, Amino Acid</term><term>Vitellogenins (chemistry)</term><term>Vitellogenins (genetics)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="biosynthesis" xml:lang="en"><term>RNA, Messenger</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Vitellogenins</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Actins</term><term>RNA, Messenger</term><term>Vitellogenins</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Endocrine Disruptors</term><term>Estradiol</term><term>Phenols</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Amino Acid Sequence</term><term>Animals</term><term>Base Sequence</term><term>DNA Primers</term><term>DNA, Complementary</term><term>Fishes</term><term>Gas Chromatography-Mass Spectrometry</term><term>Molecular Sequence Data</term><term>Reverse Transcriptase Polymerase Chain Reaction</term><term>Sequence Homology, Amino Acid</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">It has been demonstrated that 4-nonylphenol (4-NP) exerts estrogenic effects in diverse fishes. The present study investigated the effects of 4-NP on Chinese sturgeon (Acipenser sinensis Gray) vitellogenin (VTG) gene expression. By reverse transcription-polymerase chain reaction (RT-PCR) using degenerate primers, a 462-base pair fragment of Chinese sturgeon VTG, corresponding to a 154-amino acid sequence, was amplified and sequenced. This sequence exhibited 152/154 identity to the amino acid sequence of white sturgeon (A. transmontano) VTG. Conventional RT-PCR and quantitative real-time RT-PCR were established and used to study the VTG and beta-actin gene expression in the liver of juvenile Chinese sturgeon injected three times with 17beta-estradiol (5 mg/kg body wt/week) or 4-NP (10 or 100 mg/kg/week) in the course of three weeks. Significant induction of VTG gene expression was detected in all treated groups, and no VTG mRNA was detected in the control group. The ratio of VTG to beta-actin analyzed from the results of quantitative real-time RT-PCR reached 0.041 +/- 0.024 (mean +/- SD) in the group receiving 10 mg/kg/week of 4-NP and 4.51 +/- 1.68 in the group receiving 100 mg/kg/week of 4-NP. Chemical analysis of 4-NP showed that the concentrations of 4-NP in the 10 mg/kg/week group and the 100 mg/kg/week group were 2.78 +/- 2.41 and 31.38 +/- 0.26 mcirog/ g wet weight, respectively. Compared with the 4-NP concentrations (0.8-1.92 microg/g wet wt) in fish from the Yangtze River, China, a potential hazard exists regarding 4-NP in Chinese sturgeon. These results represent the first indication of the risk of endocrine-disrupting chemicals for Chinese sturgeon.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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