Modulations of TCDD-mediated induction of zebrafish cyp1a1 and the AHR pathway by administering Cd2+ in vivo
Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome...
Ausführliche Beschreibung
Autor*in: |
Chen, Ying Ying [verfasserIn] |
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E-Artikel |
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Englisch |
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2018transfer abstract |
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11 |
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Übergeordnetes Werk: |
Enthalten in: MPI vs Fortran coarrays beyond 100k cores: 3D cellular automata - Shterenlikht, Anton ELSEVIER, 2019, chemistry, biology and toxicology as related to environmental problems, Amsterdam [u.a.] |
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Übergeordnetes Werk: |
volume:210 ; year:2018 ; pages:577-587 ; extent:11 |
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DOI / URN: |
10.1016/j.chemosphere.2018.07.032 |
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ELV044034067 |
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520 | |a Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome P450 1A1 (cyp1a1) gene-induction by TCDD using zebrafish embryos and larvae and adult zebrafish tissues. Our results showed that TCDD induced the cyp1a1 gene in all developmental stages and tissues of zebrafish, and the induction was higher in females than males. However, for the upstream genes (ahr2 and arnt2b) that mediate cyp1a1 gene induction in the zebrafish liver cell line was not induced by TCDD similar to the pattern of cyp1a1 in all investigated groups. After co-treatment with Cd2+, induction of the aryl hydrocarbon receptor pathway by TCDD was inhibited in the zebrafish larvae and the livers, intestines, kidneys and gills of adult zebrafish, but not in the embryos or brains of adult zebrafish, indicating that the toxicological effects of Cd2+ on TCDD are dependent on the developmental stages and tissue types. The present study confirms that Cd2+ blocks the TCDD-induced cyp1a1 gene in vivo but emphasizes that the effects are specific to the developmental stage, type of tissue and sex. The combined effects of Cd2+ and TCDD must be taken into consideration together with these parameters to accurately predict and assess cadmium and TCDD-induced toxicity in fish and carcinogenesis in animals in general. | ||
520 | |a Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome P450 1A1 (cyp1a1) gene-induction by TCDD using zebrafish embryos and larvae and adult zebrafish tissues. Our results showed that TCDD induced the cyp1a1 gene in all developmental stages and tissues of zebrafish, and the induction was higher in females than males. However, for the upstream genes (ahr2 and arnt2b) that mediate cyp1a1 gene induction in the zebrafish liver cell line was not induced by TCDD similar to the pattern of cyp1a1 in all investigated groups. After co-treatment with Cd2+, induction of the aryl hydrocarbon receptor pathway by TCDD was inhibited in the zebrafish larvae and the livers, intestines, kidneys and gills of adult zebrafish, but not in the embryos or brains of adult zebrafish, indicating that the toxicological effects of Cd2+ on TCDD are dependent on the developmental stages and tissue types. The present study confirms that Cd2+ blocks the TCDD-induced cyp1a1 gene in vivo but emphasizes that the effects are specific to the developmental stage, type of tissue and sex. The combined effects of Cd2+ and TCDD must be taken into consideration together with these parameters to accurately predict and assess cadmium and TCDD-induced toxicity in fish and carcinogenesis in animals in general. | ||
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10.1016/j.chemosphere.2018.07.032 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000998.pica (DE-627)ELV044034067 (ELSEVIER)S0045-6535(18)31290-6 DE-627 ger DE-627 rakwb eng 004 620 VZ 54.25 bkl Chen, Ying Ying verfasserin aut Modulations of TCDD-mediated induction of zebrafish cyp1a1 and the AHR pathway by administering Cd2+ in vivo 2018transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome P450 1A1 (cyp1a1) gene-induction by TCDD using zebrafish embryos and larvae and adult zebrafish tissues. Our results showed that TCDD induced the cyp1a1 gene in all developmental stages and tissues of zebrafish, and the induction was higher in females than males. However, for the upstream genes (ahr2 and arnt2b) that mediate cyp1a1 gene induction in the zebrafish liver cell line was not induced by TCDD similar to the pattern of cyp1a1 in all investigated groups. After co-treatment with Cd2+, induction of the aryl hydrocarbon receptor pathway by TCDD was inhibited in the zebrafish larvae and the livers, intestines, kidneys and gills of adult zebrafish, but not in the embryos or brains of adult zebrafish, indicating that the toxicological effects of Cd2+ on TCDD are dependent on the developmental stages and tissue types. The present study confirms that Cd2+ blocks the TCDD-induced cyp1a1 gene in vivo but emphasizes that the effects are specific to the developmental stage, type of tissue and sex. The combined effects of Cd2+ and TCDD must be taken into consideration together with these parameters to accurately predict and assess cadmium and TCDD-induced toxicity in fish and carcinogenesis in animals in general. Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome P450 1A1 (cyp1a1) gene-induction by TCDD using zebrafish embryos and larvae and adult zebrafish tissues. Our results showed that TCDD induced the cyp1a1 gene in all developmental stages and tissues of zebrafish, and the induction was higher in females than males. However, for the upstream genes (ahr2 and arnt2b) that mediate cyp1a1 gene induction in the zebrafish liver cell line was not induced by TCDD similar to the pattern of cyp1a1 in all investigated groups. After co-treatment with Cd2+, induction of the aryl hydrocarbon receptor pathway by TCDD was inhibited in the zebrafish larvae and the livers, intestines, kidneys and gills of adult zebrafish, but not in the embryos or brains of adult zebrafish, indicating that the toxicological effects of Cd2+ on TCDD are dependent on the developmental stages and tissue types. The present study confirms that Cd2+ blocks the TCDD-induced cyp1a1 gene in vivo but emphasizes that the effects are specific to the developmental stage, type of tissue and sex. The combined effects of Cd2+ and TCDD must be taken into consideration together with these parameters to accurately predict and assess cadmium and TCDD-induced toxicity in fish and carcinogenesis in animals in general. Aryl hydrocarbon receptor Elsevier Cadmium Elsevier Co-exposure Elsevier CYP1A1 Elsevier TCDD Elsevier Zebrafish Elsevier Chan, King Ming oth Enthalten in Elsevier Science Shterenlikht, Anton ELSEVIER MPI vs Fortran coarrays beyond 100k cores: 3D cellular automata 2019 chemistry, biology and toxicology as related to environmental problems Amsterdam [u.a.] (DE-627)ELV002112701 volume:210 year:2018 pages:577-587 extent:11 https://doi.org/10.1016/j.chemosphere.2018.07.032 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 54.25 Parallele Datenverarbeitung VZ AR 210 2018 577-587 11 |
spelling |
10.1016/j.chemosphere.2018.07.032 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000998.pica (DE-627)ELV044034067 (ELSEVIER)S0045-6535(18)31290-6 DE-627 ger DE-627 rakwb eng 004 620 VZ 54.25 bkl Chen, Ying Ying verfasserin aut Modulations of TCDD-mediated induction of zebrafish cyp1a1 and the AHR pathway by administering Cd2+ in vivo 2018transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome P450 1A1 (cyp1a1) gene-induction by TCDD using zebrafish embryos and larvae and adult zebrafish tissues. Our results showed that TCDD induced the cyp1a1 gene in all developmental stages and tissues of zebrafish, and the induction was higher in females than males. However, for the upstream genes (ahr2 and arnt2b) that mediate cyp1a1 gene induction in the zebrafish liver cell line was not induced by TCDD similar to the pattern of cyp1a1 in all investigated groups. After co-treatment with Cd2+, induction of the aryl hydrocarbon receptor pathway by TCDD was inhibited in the zebrafish larvae and the livers, intestines, kidneys and gills of adult zebrafish, but not in the embryos or brains of adult zebrafish, indicating that the toxicological effects of Cd2+ on TCDD are dependent on the developmental stages and tissue types. The present study confirms that Cd2+ blocks the TCDD-induced cyp1a1 gene in vivo but emphasizes that the effects are specific to the developmental stage, type of tissue and sex. The combined effects of Cd2+ and TCDD must be taken into consideration together with these parameters to accurately predict and assess cadmium and TCDD-induced toxicity in fish and carcinogenesis in animals in general. Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome P450 1A1 (cyp1a1) gene-induction by TCDD using zebrafish embryos and larvae and adult zebrafish tissues. Our results showed that TCDD induced the cyp1a1 gene in all developmental stages and tissues of zebrafish, and the induction was higher in females than males. However, for the upstream genes (ahr2 and arnt2b) that mediate cyp1a1 gene induction in the zebrafish liver cell line was not induced by TCDD similar to the pattern of cyp1a1 in all investigated groups. After co-treatment with Cd2+, induction of the aryl hydrocarbon receptor pathway by TCDD was inhibited in the zebrafish larvae and the livers, intestines, kidneys and gills of adult zebrafish, but not in the embryos or brains of adult zebrafish, indicating that the toxicological effects of Cd2+ on TCDD are dependent on the developmental stages and tissue types. The present study confirms that Cd2+ blocks the TCDD-induced cyp1a1 gene in vivo but emphasizes that the effects are specific to the developmental stage, type of tissue and sex. The combined effects of Cd2+ and TCDD must be taken into consideration together with these parameters to accurately predict and assess cadmium and TCDD-induced toxicity in fish and carcinogenesis in animals in general. Aryl hydrocarbon receptor Elsevier Cadmium Elsevier Co-exposure Elsevier CYP1A1 Elsevier TCDD Elsevier Zebrafish Elsevier Chan, King Ming oth Enthalten in Elsevier Science Shterenlikht, Anton ELSEVIER MPI vs Fortran coarrays beyond 100k cores: 3D cellular automata 2019 chemistry, biology and toxicology as related to environmental problems Amsterdam [u.a.] (DE-627)ELV002112701 volume:210 year:2018 pages:577-587 extent:11 https://doi.org/10.1016/j.chemosphere.2018.07.032 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 54.25 Parallele Datenverarbeitung VZ AR 210 2018 577-587 11 |
allfields_unstemmed |
10.1016/j.chemosphere.2018.07.032 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000998.pica (DE-627)ELV044034067 (ELSEVIER)S0045-6535(18)31290-6 DE-627 ger DE-627 rakwb eng 004 620 VZ 54.25 bkl Chen, Ying Ying verfasserin aut Modulations of TCDD-mediated induction of zebrafish cyp1a1 and the AHR pathway by administering Cd2+ in vivo 2018transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome P450 1A1 (cyp1a1) gene-induction by TCDD using zebrafish embryos and larvae and adult zebrafish tissues. Our results showed that TCDD induced the cyp1a1 gene in all developmental stages and tissues of zebrafish, and the induction was higher in females than males. However, for the upstream genes (ahr2 and arnt2b) that mediate cyp1a1 gene induction in the zebrafish liver cell line was not induced by TCDD similar to the pattern of cyp1a1 in all investigated groups. After co-treatment with Cd2+, induction of the aryl hydrocarbon receptor pathway by TCDD was inhibited in the zebrafish larvae and the livers, intestines, kidneys and gills of adult zebrafish, but not in the embryos or brains of adult zebrafish, indicating that the toxicological effects of Cd2+ on TCDD are dependent on the developmental stages and tissue types. The present study confirms that Cd2+ blocks the TCDD-induced cyp1a1 gene in vivo but emphasizes that the effects are specific to the developmental stage, type of tissue and sex. The combined effects of Cd2+ and TCDD must be taken into consideration together with these parameters to accurately predict and assess cadmium and TCDD-induced toxicity in fish and carcinogenesis in animals in general. Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome P450 1A1 (cyp1a1) gene-induction by TCDD using zebrafish embryos and larvae and adult zebrafish tissues. Our results showed that TCDD induced the cyp1a1 gene in all developmental stages and tissues of zebrafish, and the induction was higher in females than males. However, for the upstream genes (ahr2 and arnt2b) that mediate cyp1a1 gene induction in the zebrafish liver cell line was not induced by TCDD similar to the pattern of cyp1a1 in all investigated groups. After co-treatment with Cd2+, induction of the aryl hydrocarbon receptor pathway by TCDD was inhibited in the zebrafish larvae and the livers, intestines, kidneys and gills of adult zebrafish, but not in the embryos or brains of adult zebrafish, indicating that the toxicological effects of Cd2+ on TCDD are dependent on the developmental stages and tissue types. The present study confirms that Cd2+ blocks the TCDD-induced cyp1a1 gene in vivo but emphasizes that the effects are specific to the developmental stage, type of tissue and sex. The combined effects of Cd2+ and TCDD must be taken into consideration together with these parameters to accurately predict and assess cadmium and TCDD-induced toxicity in fish and carcinogenesis in animals in general. Aryl hydrocarbon receptor Elsevier Cadmium Elsevier Co-exposure Elsevier CYP1A1 Elsevier TCDD Elsevier Zebrafish Elsevier Chan, King Ming oth Enthalten in Elsevier Science Shterenlikht, Anton ELSEVIER MPI vs Fortran coarrays beyond 100k cores: 3D cellular automata 2019 chemistry, biology and toxicology as related to environmental problems Amsterdam [u.a.] (DE-627)ELV002112701 volume:210 year:2018 pages:577-587 extent:11 https://doi.org/10.1016/j.chemosphere.2018.07.032 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 54.25 Parallele Datenverarbeitung VZ AR 210 2018 577-587 11 |
allfieldsGer |
10.1016/j.chemosphere.2018.07.032 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000998.pica (DE-627)ELV044034067 (ELSEVIER)S0045-6535(18)31290-6 DE-627 ger DE-627 rakwb eng 004 620 VZ 54.25 bkl Chen, Ying Ying verfasserin aut Modulations of TCDD-mediated induction of zebrafish cyp1a1 and the AHR pathway by administering Cd2+ in vivo 2018transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome P450 1A1 (cyp1a1) gene-induction by TCDD using zebrafish embryos and larvae and adult zebrafish tissues. Our results showed that TCDD induced the cyp1a1 gene in all developmental stages and tissues of zebrafish, and the induction was higher in females than males. However, for the upstream genes (ahr2 and arnt2b) that mediate cyp1a1 gene induction in the zebrafish liver cell line was not induced by TCDD similar to the pattern of cyp1a1 in all investigated groups. After co-treatment with Cd2+, induction of the aryl hydrocarbon receptor pathway by TCDD was inhibited in the zebrafish larvae and the livers, intestines, kidneys and gills of adult zebrafish, but not in the embryos or brains of adult zebrafish, indicating that the toxicological effects of Cd2+ on TCDD are dependent on the developmental stages and tissue types. The present study confirms that Cd2+ blocks the TCDD-induced cyp1a1 gene in vivo but emphasizes that the effects are specific to the developmental stage, type of tissue and sex. The combined effects of Cd2+ and TCDD must be taken into consideration together with these parameters to accurately predict and assess cadmium and TCDD-induced toxicity in fish and carcinogenesis in animals in general. Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome P450 1A1 (cyp1a1) gene-induction by TCDD using zebrafish embryos and larvae and adult zebrafish tissues. Our results showed that TCDD induced the cyp1a1 gene in all developmental stages and tissues of zebrafish, and the induction was higher in females than males. However, for the upstream genes (ahr2 and arnt2b) that mediate cyp1a1 gene induction in the zebrafish liver cell line was not induced by TCDD similar to the pattern of cyp1a1 in all investigated groups. After co-treatment with Cd2+, induction of the aryl hydrocarbon receptor pathway by TCDD was inhibited in the zebrafish larvae and the livers, intestines, kidneys and gills of adult zebrafish, but not in the embryos or brains of adult zebrafish, indicating that the toxicological effects of Cd2+ on TCDD are dependent on the developmental stages and tissue types. The present study confirms that Cd2+ blocks the TCDD-induced cyp1a1 gene in vivo but emphasizes that the effects are specific to the developmental stage, type of tissue and sex. The combined effects of Cd2+ and TCDD must be taken into consideration together with these parameters to accurately predict and assess cadmium and TCDD-induced toxicity in fish and carcinogenesis in animals in general. Aryl hydrocarbon receptor Elsevier Cadmium Elsevier Co-exposure Elsevier CYP1A1 Elsevier TCDD Elsevier Zebrafish Elsevier Chan, King Ming oth Enthalten in Elsevier Science Shterenlikht, Anton ELSEVIER MPI vs Fortran coarrays beyond 100k cores: 3D cellular automata 2019 chemistry, biology and toxicology as related to environmental problems Amsterdam [u.a.] (DE-627)ELV002112701 volume:210 year:2018 pages:577-587 extent:11 https://doi.org/10.1016/j.chemosphere.2018.07.032 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 54.25 Parallele Datenverarbeitung VZ AR 210 2018 577-587 11 |
allfieldsSound |
10.1016/j.chemosphere.2018.07.032 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000998.pica (DE-627)ELV044034067 (ELSEVIER)S0045-6535(18)31290-6 DE-627 ger DE-627 rakwb eng 004 620 VZ 54.25 bkl Chen, Ying Ying verfasserin aut Modulations of TCDD-mediated induction of zebrafish cyp1a1 and the AHR pathway by administering Cd2+ in vivo 2018transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome P450 1A1 (cyp1a1) gene-induction by TCDD using zebrafish embryos and larvae and adult zebrafish tissues. Our results showed that TCDD induced the cyp1a1 gene in all developmental stages and tissues of zebrafish, and the induction was higher in females than males. However, for the upstream genes (ahr2 and arnt2b) that mediate cyp1a1 gene induction in the zebrafish liver cell line was not induced by TCDD similar to the pattern of cyp1a1 in all investigated groups. After co-treatment with Cd2+, induction of the aryl hydrocarbon receptor pathway by TCDD was inhibited in the zebrafish larvae and the livers, intestines, kidneys and gills of adult zebrafish, but not in the embryos or brains of adult zebrafish, indicating that the toxicological effects of Cd2+ on TCDD are dependent on the developmental stages and tissue types. The present study confirms that Cd2+ blocks the TCDD-induced cyp1a1 gene in vivo but emphasizes that the effects are specific to the developmental stage, type of tissue and sex. The combined effects of Cd2+ and TCDD must be taken into consideration together with these parameters to accurately predict and assess cadmium and TCDD-induced toxicity in fish and carcinogenesis in animals in general. Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome P450 1A1 (cyp1a1) gene-induction by TCDD using zebrafish embryos and larvae and adult zebrafish tissues. Our results showed that TCDD induced the cyp1a1 gene in all developmental stages and tissues of zebrafish, and the induction was higher in females than males. However, for the upstream genes (ahr2 and arnt2b) that mediate cyp1a1 gene induction in the zebrafish liver cell line was not induced by TCDD similar to the pattern of cyp1a1 in all investigated groups. After co-treatment with Cd2+, induction of the aryl hydrocarbon receptor pathway by TCDD was inhibited in the zebrafish larvae and the livers, intestines, kidneys and gills of adult zebrafish, but not in the embryos or brains of adult zebrafish, indicating that the toxicological effects of Cd2+ on TCDD are dependent on the developmental stages and tissue types. The present study confirms that Cd2+ blocks the TCDD-induced cyp1a1 gene in vivo but emphasizes that the effects are specific to the developmental stage, type of tissue and sex. The combined effects of Cd2+ and TCDD must be taken into consideration together with these parameters to accurately predict and assess cadmium and TCDD-induced toxicity in fish and carcinogenesis in animals in general. Aryl hydrocarbon receptor Elsevier Cadmium Elsevier Co-exposure Elsevier CYP1A1 Elsevier TCDD Elsevier Zebrafish Elsevier Chan, King Ming oth Enthalten in Elsevier Science Shterenlikht, Anton ELSEVIER MPI vs Fortran coarrays beyond 100k cores: 3D cellular automata 2019 chemistry, biology and toxicology as related to environmental problems Amsterdam [u.a.] (DE-627)ELV002112701 volume:210 year:2018 pages:577-587 extent:11 https://doi.org/10.1016/j.chemosphere.2018.07.032 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 54.25 Parallele Datenverarbeitung VZ AR 210 2018 577-587 11 |
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Enthalten in MPI vs Fortran coarrays beyond 100k cores: 3D cellular automata Amsterdam [u.a.] volume:210 year:2018 pages:577-587 extent:11 |
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modulations of tcdd-mediated induction of zebrafish cyp1a1 and the ahr pathway by administering cd2+ in vivo |
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Modulations of TCDD-mediated induction of zebrafish cyp1a1 and the AHR pathway by administering Cd2+ in vivo |
abstract |
Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome P450 1A1 (cyp1a1) gene-induction by TCDD using zebrafish embryos and larvae and adult zebrafish tissues. Our results showed that TCDD induced the cyp1a1 gene in all developmental stages and tissues of zebrafish, and the induction was higher in females than males. However, for the upstream genes (ahr2 and arnt2b) that mediate cyp1a1 gene induction in the zebrafish liver cell line was not induced by TCDD similar to the pattern of cyp1a1 in all investigated groups. After co-treatment with Cd2+, induction of the aryl hydrocarbon receptor pathway by TCDD was inhibited in the zebrafish larvae and the livers, intestines, kidneys and gills of adult zebrafish, but not in the embryos or brains of adult zebrafish, indicating that the toxicological effects of Cd2+ on TCDD are dependent on the developmental stages and tissue types. The present study confirms that Cd2+ blocks the TCDD-induced cyp1a1 gene in vivo but emphasizes that the effects are specific to the developmental stage, type of tissue and sex. The combined effects of Cd2+ and TCDD must be taken into consideration together with these parameters to accurately predict and assess cadmium and TCDD-induced toxicity in fish and carcinogenesis in animals in general. |
abstractGer |
Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome P450 1A1 (cyp1a1) gene-induction by TCDD using zebrafish embryos and larvae and adult zebrafish tissues. Our results showed that TCDD induced the cyp1a1 gene in all developmental stages and tissues of zebrafish, and the induction was higher in females than males. However, for the upstream genes (ahr2 and arnt2b) that mediate cyp1a1 gene induction in the zebrafish liver cell line was not induced by TCDD similar to the pattern of cyp1a1 in all investigated groups. After co-treatment with Cd2+, induction of the aryl hydrocarbon receptor pathway by TCDD was inhibited in the zebrafish larvae and the livers, intestines, kidneys and gills of adult zebrafish, but not in the embryos or brains of adult zebrafish, indicating that the toxicological effects of Cd2+ on TCDD are dependent on the developmental stages and tissue types. The present study confirms that Cd2+ blocks the TCDD-induced cyp1a1 gene in vivo but emphasizes that the effects are specific to the developmental stage, type of tissue and sex. The combined effects of Cd2+ and TCDD must be taken into consideration together with these parameters to accurately predict and assess cadmium and TCDD-induced toxicity in fish and carcinogenesis in animals in general. |
abstract_unstemmed |
Trace metal ions such as cadmium (Cd2+) and trace organics typified by 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) are common co-contaminants in the environment and cause toxic effects in aquatic organisms that pose serious health risks. We studied the effects of Cd2+ on the regulation of cytochrome P450 1A1 (cyp1a1) gene-induction by TCDD using zebrafish embryos and larvae and adult zebrafish tissues. Our results showed that TCDD induced the cyp1a1 gene in all developmental stages and tissues of zebrafish, and the induction was higher in females than males. However, for the upstream genes (ahr2 and arnt2b) that mediate cyp1a1 gene induction in the zebrafish liver cell line was not induced by TCDD similar to the pattern of cyp1a1 in all investigated groups. After co-treatment with Cd2+, induction of the aryl hydrocarbon receptor pathway by TCDD was inhibited in the zebrafish larvae and the livers, intestines, kidneys and gills of adult zebrafish, but not in the embryos or brains of adult zebrafish, indicating that the toxicological effects of Cd2+ on TCDD are dependent on the developmental stages and tissue types. The present study confirms that Cd2+ blocks the TCDD-induced cyp1a1 gene in vivo but emphasizes that the effects are specific to the developmental stage, type of tissue and sex. The combined effects of Cd2+ and TCDD must be taken into consideration together with these parameters to accurately predict and assess cadmium and TCDD-induced toxicity in fish and carcinogenesis in animals in general. |
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Modulations of TCDD-mediated induction of zebrafish cyp1a1 and the AHR pathway by administering Cd2+ in vivo |
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