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The inhibition of NOTCH2 reduces UVB-induced damage in retinal pigment epithelium cells

  • Authors:
    • Lanying Liu
    • Xin Zhou
    • Xielan Kuang
    • Chongde Long
    • Weiwei Liu
    • Yan Tang
    • Huijun Liu
    • Jia He
    • Zixin Huang
    • Yuting Fan
    • Qingjiong Zhang
    • Huangxuan Shen
  • View Affiliations / Copyright

    Affiliations: State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat‑sen University, Guangzhou, Guangdong 510060, P.R. China
    Copyright: © Liu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 730-736
    |
    Published online on: May 25, 2017
       https://doi.org/10.3892/mmr.2017.6625
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Abstract

Age-related macular degeneration (AMD) is the leading cause of irreversible blindness in the elderly. The pathogenesis of dry AMD remains indistinct and the mechanism of retinal pigment epithelium (RPE) cells death in dry AMD is controversial. The aim of the present study was to investigate the functions of Notch signaling in ultraviolet B (UVB)-induced damage of RPE cells. It was identified that, in RPE cells, UVB increased intracellular reactive oxygen species (ROS) and induced cell apoptosis. In addition, UVB activated Notch signaling in a dose dependent manner. Surprisingly, NOTCH2, but not NOTCH1, was demonstrated to be the major Notch receptor in RPE cells. Under normal conditions, the inhibition of NOTCH2 reduced cell growth and cell migration, but had no impact on intracellular ROS and cell apoptosis. However, in the presence of UVB, the inhibition of NOTCH2, but not NOTCH1, attenuated intracellular ROS and cell apoptosis. The function of Notch signaling involved in UVB damage of RPE cells may not only be significant to understanding the pathogenesis of AMD (especially dry AMD), but also useful for designing effective therapeutic agents for dry AMD.
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Copy and paste a formatted citation
Spandidos Publications style
Liu L, Zhou X, Kuang X, Long C, Liu W, Tang Y, Liu H, He J, Huang Z, Fan Y, Fan Y, et al: The inhibition of NOTCH2 reduces UVB-induced damage in retinal pigment epithelium cells. Mol Med Rep 16: 730-736, 2017.
APA
Liu, L., Zhou, X., Kuang, X., Long, C., Liu, W., Tang, Y. ... Shen, H. (2017). The inhibition of NOTCH2 reduces UVB-induced damage in retinal pigment epithelium cells. Molecular Medicine Reports, 16, 730-736. https://doi.org/10.3892/mmr.2017.6625
MLA
Liu, L., Zhou, X., Kuang, X., Long, C., Liu, W., Tang, Y., Liu, H., He, J., Huang, Z., Fan, Y., Zhang, Q., Shen, H."The inhibition of NOTCH2 reduces UVB-induced damage in retinal pigment epithelium cells". Molecular Medicine Reports 16.1 (2017): 730-736.
Chicago
Liu, L., Zhou, X., Kuang, X., Long, C., Liu, W., Tang, Y., Liu, H., He, J., Huang, Z., Fan, Y., Zhang, Q., Shen, H."The inhibition of NOTCH2 reduces UVB-induced damage in retinal pigment epithelium cells". Molecular Medicine Reports 16, no. 1 (2017): 730-736. https://doi.org/10.3892/mmr.2017.6625
Copy and paste a formatted citation
x
Spandidos Publications style
Liu L, Zhou X, Kuang X, Long C, Liu W, Tang Y, Liu H, He J, Huang Z, Fan Y, Fan Y, et al: The inhibition of NOTCH2 reduces UVB-induced damage in retinal pigment epithelium cells. Mol Med Rep 16: 730-736, 2017.
APA
Liu, L., Zhou, X., Kuang, X., Long, C., Liu, W., Tang, Y. ... Shen, H. (2017). The inhibition of NOTCH2 reduces UVB-induced damage in retinal pigment epithelium cells. Molecular Medicine Reports, 16, 730-736. https://doi.org/10.3892/mmr.2017.6625
MLA
Liu, L., Zhou, X., Kuang, X., Long, C., Liu, W., Tang, Y., Liu, H., He, J., Huang, Z., Fan, Y., Zhang, Q., Shen, H."The inhibition of NOTCH2 reduces UVB-induced damage in retinal pigment epithelium cells". Molecular Medicine Reports 16.1 (2017): 730-736.
Chicago
Liu, L., Zhou, X., Kuang, X., Long, C., Liu, W., Tang, Y., Liu, H., He, J., Huang, Z., Fan, Y., Zhang, Q., Shen, H."The inhibition of NOTCH2 reduces UVB-induced damage in retinal pigment epithelium cells". Molecular Medicine Reports 16, no. 1 (2017): 730-736. https://doi.org/10.3892/mmr.2017.6625
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