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Regulation of TGF-β1-Mediated Wnt/β-catenin Pathways Plays an Important Role in EMT-like Transformation Induced by Cadmium

Received: 18 November 2018     Accepted: 13 December 2018     Published: 11 October 2019
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Abstract

Backgrounds Some studies have reported that different dosage of cadmium (Cd) had a biphasic effect on cells viability, Cd at a dose of more than 20 μM can induce excessive apoptosis which past studies were mainly concentrated on while there has been few reports on a relatively lower dose of Cd causing abnormal proliferation. Kidney is the most sensitive target organ of Cd, however, the mechanism how Cd at a relatively lower dose affects the proliferation of renal tubular epithelial cells (RTEC) is not yet clear at present. Objectives To explore the toxic effect of Cd at a relatively lower dose on RTEC and study the mechanism how the TGF-β1-mediated Wnt/β-catenin pathways involved in EMT-like transformation induced by Cadmium. Methods The RTEC were isolated by mixed collagenase digestion methods and the effect of Cd at different dose on cell viability was detected by MTT assay. The effect of Cd at Hormesis zone dose on the expression of c-myc, cyclinD1, α-SMA, TGF-β1, Wnt and β-catenin were determined by qRT-PCR. Results When exposed for 24h-72h, Cd at a dose of 2.5 μM had maximum proliferation promoting effect. Cd at Hormesis zone dose could up-regulate the expression of cell cycle and proliferation key regulators c-myc and cyclinD1 in an obvious time-dependent manner. Cd at Hormesis zone dose could significantly promote α-SMA, TGF-β1, Wnt and β-catenin mRNA expression. Conclusions Cd at Hormesis zone dose could induce RTEC significant abnormal proliferation and EMT-like transformation. The activation of TGF-β1-mediated Wnt/β-catenin pathways might play a key role in EMT-like transformation induced by Cd at Hormesis zone dose.

Published in Journal of Health and Environmental Research (Volume 5, Issue 3)
DOI 10.11648/j.jher.20190503.13
Page(s) 87-94
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

Wnt/β-catenin, TGF-β1, EMT-like Transformation, Cadmium

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Cite This Article
  • APA Style

    Yanlin Zhang, Jiandong Wu, Lulu Ren, Guning Wang, Lihong Yuan, et al. (2019). Regulation of TGF-β1-Mediated Wnt/β-catenin Pathways Plays an Important Role in EMT-like Transformation Induced by Cadmium. Journal of Health and Environmental Research, 5(3), 87-94. https://doi.org/10.11648/j.jher.20190503.13

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    ACS Style

    Yanlin Zhang; Jiandong Wu; Lulu Ren; Guning Wang; Lihong Yuan, et al. Regulation of TGF-β1-Mediated Wnt/β-catenin Pathways Plays an Important Role in EMT-like Transformation Induced by Cadmium. J. Health Environ. Res. 2019, 5(3), 87-94. doi: 10.11648/j.jher.20190503.13

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    AMA Style

    Yanlin Zhang, Jiandong Wu, Lulu Ren, Guning Wang, Lihong Yuan, et al. Regulation of TGF-β1-Mediated Wnt/β-catenin Pathways Plays an Important Role in EMT-like Transformation Induced by Cadmium. J Health Environ Res. 2019;5(3):87-94. doi: 10.11648/j.jher.20190503.13

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  • @article{10.11648/j.jher.20190503.13,
      author = {Yanlin Zhang and Jiandong Wu and Lulu Ren and Guning Wang and Lihong Yuan and Zhihui Zou},
      title = {Regulation of TGF-β1-Mediated Wnt/β-catenin Pathways Plays an Important Role in EMT-like Transformation Induced by Cadmium},
      journal = {Journal of Health and Environmental Research},
      volume = {5},
      number = {3},
      pages = {87-94},
      doi = {10.11648/j.jher.20190503.13},
      url = {https://doi.org/10.11648/j.jher.20190503.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jher.20190503.13},
      abstract = {Backgrounds Some studies have reported that different dosage of cadmium (Cd) had a biphasic effect on cells viability, Cd at a dose of more than 20 μM can induce excessive apoptosis which past studies were mainly concentrated on while there has been few reports on a relatively lower dose of Cd causing abnormal proliferation. Kidney is the most sensitive target organ of Cd, however, the mechanism how Cd at a relatively lower dose affects the proliferation of renal tubular epithelial cells (RTEC) is not yet clear at present. Objectives To explore the toxic effect of Cd at a relatively lower dose on RTEC and study the mechanism how the TGF-β1-mediated Wnt/β-catenin pathways involved in EMT-like transformation induced by Cadmium. Methods The RTEC were isolated by mixed collagenase digestion methods and the effect of Cd at different dose on cell viability was detected by MTT assay. The effect of Cd at Hormesis zone dose on the expression of c-myc, cyclinD1, α-SMA, TGF-β1, Wnt and β-catenin were determined by qRT-PCR. Results When exposed for 24h-72h, Cd at a dose of 2.5 μM had maximum proliferation promoting effect. Cd at Hormesis zone dose could up-regulate the expression of cell cycle and proliferation key regulators c-myc and cyclinD1 in an obvious time-dependent manner. Cd at Hormesis zone dose could significantly promote α-SMA, TGF-β1, Wnt and β-catenin mRNA expression. Conclusions Cd at Hormesis zone dose could induce RTEC significant abnormal proliferation and EMT-like transformation. The activation of TGF-β1-mediated Wnt/β-catenin pathways might play a key role in EMT-like transformation induced by Cd at Hormesis zone dose.},
     year = {2019}
    }
    

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  • TY  - JOUR
    T1  - Regulation of TGF-β1-Mediated Wnt/β-catenin Pathways Plays an Important Role in EMT-like Transformation Induced by Cadmium
    AU  - Yanlin Zhang
    AU  - Jiandong Wu
    AU  - Lulu Ren
    AU  - Guning Wang
    AU  - Lihong Yuan
    AU  - Zhihui Zou
    Y1  - 2019/10/11
    PY  - 2019
    N1  - https://doi.org/10.11648/j.jher.20190503.13
    DO  - 10.11648/j.jher.20190503.13
    T2  - Journal of Health and Environmental Research
    JF  - Journal of Health and Environmental Research
    JO  - Journal of Health and Environmental Research
    SP  - 87
    EP  - 94
    PB  - Science Publishing Group
    SN  - 2472-3592
    UR  - https://doi.org/10.11648/j.jher.20190503.13
    AB  - Backgrounds Some studies have reported that different dosage of cadmium (Cd) had a biphasic effect on cells viability, Cd at a dose of more than 20 μM can induce excessive apoptosis which past studies were mainly concentrated on while there has been few reports on a relatively lower dose of Cd causing abnormal proliferation. Kidney is the most sensitive target organ of Cd, however, the mechanism how Cd at a relatively lower dose affects the proliferation of renal tubular epithelial cells (RTEC) is not yet clear at present. Objectives To explore the toxic effect of Cd at a relatively lower dose on RTEC and study the mechanism how the TGF-β1-mediated Wnt/β-catenin pathways involved in EMT-like transformation induced by Cadmium. Methods The RTEC were isolated by mixed collagenase digestion methods and the effect of Cd at different dose on cell viability was detected by MTT assay. The effect of Cd at Hormesis zone dose on the expression of c-myc, cyclinD1, α-SMA, TGF-β1, Wnt and β-catenin were determined by qRT-PCR. Results When exposed for 24h-72h, Cd at a dose of 2.5 μM had maximum proliferation promoting effect. Cd at Hormesis zone dose could up-regulate the expression of cell cycle and proliferation key regulators c-myc and cyclinD1 in an obvious time-dependent manner. Cd at Hormesis zone dose could significantly promote α-SMA, TGF-β1, Wnt and β-catenin mRNA expression. Conclusions Cd at Hormesis zone dose could induce RTEC significant abnormal proliferation and EMT-like transformation. The activation of TGF-β1-mediated Wnt/β-catenin pathways might play a key role in EMT-like transformation induced by Cd at Hormesis zone dose.
    VL  - 5
    IS  - 3
    ER  - 

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Author Information
  • Department of Environmental Monitoring, Guangdong Vocational College of Environmental Protection Engineering, Foshan, China

  • Department of Environmental Monitoring, Guangdong Vocational College of Environmental Protection Engineering, Foshan, China

  • Department of Environmental Monitoring, Guangdong Vocational College of Environmental Protection Engineering, Foshan, China

  • Department of Environmental Monitoring, Guangdong Vocational College of Environmental Protection Engineering, Foshan, China

  • Department of Environmental Monitoring, Guangdong Vocational College of Environmental Protection Engineering, Foshan, China

  • School of Public Health, Guangdong Pharmaceutical University, Guangzhou, China

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