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Article

Effects of autophagy and endocytosis on the activity of matrix metalloproteinase‑2 in human renal proximal tubular cells under hypoxia

  • Authors:
    • Wenmin Yu
    • Zhi Wang
    • Yiping Li
    • Lei Liu
    • Jing Liu
    • Fenggan Ding
    • Xiaoyi Zhang
    • Zhengyuan Cheng
    • Pingsheng Chen
  • View Affiliations / Copyright

    Affiliations: The School of Basic Medical Science, Jiujiang University/Jiujiang Key Laboratory of Translational Medicine, Jiujiang, Jiangxi 332000, P.R. China, Department of Pathology and Pathophysiology, Medical School of Southeast University, Nanjing, Jiangsu 210009, P.R. China
  • Pages: 3225-3230
    |
    Published online on: March 22, 2017
       https://doi.org/10.3892/mmr.2017.6358
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Abstract

Tubulointerstitial fibrosis is characterized by tubular atrophy with basement membrane thickening and accumulation of interstitial extracellular matrix (ECM). A decrease in the activity of matrix metalloproteinase‑2 (MMP‑2) may promote this process. Although proximal tubular cells are sensitive to oxygen deprivation, whether cellular autophagy or endocytosis induced by hypoxia can alter the activity of MMP‑2 remains to be elucidated. The aim of the present study was to investigate whether autophagy and endocytosis induced by hypoxia can have an effect on the activity of MMP‑2 in HK‑2 cells. The investigations involved exposing the HK‑2 cell line to an autophagy inhibitor, 3‑MA, or an endocytotic inhibitor, filipin. The mRNA expression of MMP‑2 was elevated in the hypoxic milieu. Furthermore, it was found that filipin increased the activity of MMP‑2 under hypoxia. These results suggested that autophagy and endocytosis were potential mediators for the altered expression of MMP‑2, and endocytosis was a potential target for regulating the activity of MMP‑2. These data suggested that hypoxia may be an important pro‑fibrogenic stimulus, which acts in part via endocytosis.
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Copy and paste a formatted citation
Spandidos Publications style
Yu W, Wang Z, Li Y, Liu L, Liu J, Ding F, Zhang X, Cheng Z and Chen P: Effects of autophagy and endocytosis on the activity of matrix metalloproteinase‑2 in human renal proximal tubular cells under hypoxia. Mol Med Rep 15: 3225-3230, 2017.
APA
Yu, W., Wang, Z., Li, Y., Liu, L., Liu, J., Ding, F. ... Chen, P. (2017). Effects of autophagy and endocytosis on the activity of matrix metalloproteinase‑2 in human renal proximal tubular cells under hypoxia. Molecular Medicine Reports, 15, 3225-3230. https://doi.org/10.3892/mmr.2017.6358
MLA
Yu, W., Wang, Z., Li, Y., Liu, L., Liu, J., Ding, F., Zhang, X., Cheng, Z., Chen, P."Effects of autophagy and endocytosis on the activity of matrix metalloproteinase‑2 in human renal proximal tubular cells under hypoxia". Molecular Medicine Reports 15.5 (2017): 3225-3230.
Chicago
Yu, W., Wang, Z., Li, Y., Liu, L., Liu, J., Ding, F., Zhang, X., Cheng, Z., Chen, P."Effects of autophagy and endocytosis on the activity of matrix metalloproteinase‑2 in human renal proximal tubular cells under hypoxia". Molecular Medicine Reports 15, no. 5 (2017): 3225-3230. https://doi.org/10.3892/mmr.2017.6358
Copy and paste a formatted citation
x
Spandidos Publications style
Yu W, Wang Z, Li Y, Liu L, Liu J, Ding F, Zhang X, Cheng Z and Chen P: Effects of autophagy and endocytosis on the activity of matrix metalloproteinase‑2 in human renal proximal tubular cells under hypoxia. Mol Med Rep 15: 3225-3230, 2017.
APA
Yu, W., Wang, Z., Li, Y., Liu, L., Liu, J., Ding, F. ... Chen, P. (2017). Effects of autophagy and endocytosis on the activity of matrix metalloproteinase‑2 in human renal proximal tubular cells under hypoxia. Molecular Medicine Reports, 15, 3225-3230. https://doi.org/10.3892/mmr.2017.6358
MLA
Yu, W., Wang, Z., Li, Y., Liu, L., Liu, J., Ding, F., Zhang, X., Cheng, Z., Chen, P."Effects of autophagy and endocytosis on the activity of matrix metalloproteinase‑2 in human renal proximal tubular cells under hypoxia". Molecular Medicine Reports 15.5 (2017): 3225-3230.
Chicago
Yu, W., Wang, Z., Li, Y., Liu, L., Liu, J., Ding, F., Zhang, X., Cheng, Z., Chen, P."Effects of autophagy and endocytosis on the activity of matrix metalloproteinase‑2 in human renal proximal tubular cells under hypoxia". Molecular Medicine Reports 15, no. 5 (2017): 3225-3230. https://doi.org/10.3892/mmr.2017.6358
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