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Article

Inhibitory effect of atorvastatin on the cell growth of cardiac myxomas via the PTEN and PHLPP2 phosphatase signaling pathway

  • Authors:
    • Xing-Li Wu
    • Ding-You Yang
    • Duan-Jun Tan
    • Heng-Chen Yao
    • Wenhui Chai
    • Li Pen
  • View Affiliations / Copyright

    Affiliations: Institute of Geriatric Cardiology, Chinese PLA General Hospital, Beijing, P.R. China, Department of Traditional Chinese Medicine, The First Affiliated Hospital of Chinese PLA General Hospital, Beijing, P.R. China, Cancer Prevention and Population Sciences, Roswell Park Cancer Institute, Buffalo, NY, USA, Department of Cardiology, Liaocheng City Hospital, Shandong, P.R. China, Department of Geriatric Cardiology, Changji City Hospital, Xinjiang, P.R. China
  • Pages: 757-762
    |
    Published online on: May 28, 2013
       https://doi.org/10.3892/or.2013.2501
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Abstract

Insulin-like growth factor 1 (IGF-1) is a molecule with strong proliferative effects, and statins have been reported to exhibit antitumor effects based on clinical and experimental studies. However, their effects on cardiac myxoma (CM) cells and the underlying signaling mechanism(s) are largely unknown. Therefore, we investigated whether the protein/lipid phosphatases and tensin homolog deleted on chromosome ten (PTEN) and pleckstrin homology domain leucine-rich repeat phosphatase 1 and 2 (PHLPP1 and 2) are involved in the proliferative effect of IGF-1 on CM cells and the pharmacological impact of atorvastatin. The activity of PTEN and PHLPPs was determined using specific substrate diC16PIP3 and pNPP. We found that IGF-1 enhanced CM cell proliferation and inhibited both PTEN and PHLPP2 activity in a concentration- and time-dependent manner. Atorvastatin acted counter to IGF-1 and reversed the above effects mediated by IGF-1. Both IGF-1 and atorvastatin did not affect the activity of PHLPP1 and the protein expression of the three phosphatases. The results suggest that IGF-1 may exert its proliferative effects by negatively regulating the PTEN/PHLPP2 signaling pathway in CM cells, and atorvastatin may be a potential drug for the treatment of CM by enhancing the activity of PTEN and PHLPP2.
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Copy and paste a formatted citation
Spandidos Publications style
Wu X, Yang D, Tan D, Yao H, Chai W and Pen L: Inhibitory effect of atorvastatin on the cell growth of cardiac myxomas via the PTEN and PHLPP2 phosphatase signaling pathway. Oncol Rep 30: 757-762, 2013.
APA
Wu, X., Yang, D., Tan, D., Yao, H., Chai, W., & Pen, L. (2013). Inhibitory effect of atorvastatin on the cell growth of cardiac myxomas via the PTEN and PHLPP2 phosphatase signaling pathway. Oncology Reports, 30, 757-762. https://doi.org/10.3892/or.2013.2501
MLA
Wu, X., Yang, D., Tan, D., Yao, H., Chai, W., Pen, L."Inhibitory effect of atorvastatin on the cell growth of cardiac myxomas via the PTEN and PHLPP2 phosphatase signaling pathway". Oncology Reports 30.2 (2013): 757-762.
Chicago
Wu, X., Yang, D., Tan, D., Yao, H., Chai, W., Pen, L."Inhibitory effect of atorvastatin on the cell growth of cardiac myxomas via the PTEN and PHLPP2 phosphatase signaling pathway". Oncology Reports 30, no. 2 (2013): 757-762. https://doi.org/10.3892/or.2013.2501
Copy and paste a formatted citation
x
Spandidos Publications style
Wu X, Yang D, Tan D, Yao H, Chai W and Pen L: Inhibitory effect of atorvastatin on the cell growth of cardiac myxomas via the PTEN and PHLPP2 phosphatase signaling pathway. Oncol Rep 30: 757-762, 2013.
APA
Wu, X., Yang, D., Tan, D., Yao, H., Chai, W., & Pen, L. (2013). Inhibitory effect of atorvastatin on the cell growth of cardiac myxomas via the PTEN and PHLPP2 phosphatase signaling pathway. Oncology Reports, 30, 757-762. https://doi.org/10.3892/or.2013.2501
MLA
Wu, X., Yang, D., Tan, D., Yao, H., Chai, W., Pen, L."Inhibitory effect of atorvastatin on the cell growth of cardiac myxomas via the PTEN and PHLPP2 phosphatase signaling pathway". Oncology Reports 30.2 (2013): 757-762.
Chicago
Wu, X., Yang, D., Tan, D., Yao, H., Chai, W., Pen, L."Inhibitory effect of atorvastatin on the cell growth of cardiac myxomas via the PTEN and PHLPP2 phosphatase signaling pathway". Oncology Reports 30, no. 2 (2013): 757-762. https://doi.org/10.3892/or.2013.2501
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