Open Access

Protective effect of histatin 1 against ultraviolet‑induced damage to human corneal epithelial cells

  • Authors:
    • Guo‑Qiang Huang
    • Guo‑Guo Yi
    • Lai‑Wei Wu
    • Song‑Fu Feng
    • Wei Wu
    • Ling Peng
    • Rui‑Wen Yi
    • Wenbei Ma
    • Xiaohe Lu
  • View Affiliations

  • Published online on: November 13, 2017     https://doi.org/10.3892/etm.2017.5503
  • Pages:679-684
  • Copyright: © Huang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The aim of the present study was to investigate the role of histatin 1 (Hst1) in human corneal epithelial cells (HCECs) exposed to ultraviolet (UV) radiation. Prior to UV irradiation for various durations, HCECs were pre‑treated with different concentrations of Hst1 and the effect on cell apoptosis and cell viability were examined by flow cytometry, alamarBlue® and MTT assays to determine the optimal concentration of Hst1 and UV dose. Cells were then subjected to quantitative PCR, ELISA and western blot analysis to determine the expression of cell damage‑associated genes. HCECs exposed to UV light for 1 h displayed decreased viability when compared to that of control cells, and a 3 h UV exposure markedly increased the apoptotic rate of HECEs, while apoptosis was inhibited by pre‑treatment with Hst1. UV radiation downregulated expression of insulin‑like growth factor (IGF)‑1 and B‑cell lymphoma 2 (Bcl‑2), while it upregulated Bcl‑2‑associated X protein (Bax) expression. Hst1 protected HCECs against UV‑induced damage by upregulating the expression of IGF‑1 protein and increasing the Bcl‑2/Bax ratio. In conclusion, Hst1 may prevent UV‑induced damage to corneal epithelial tissue injury and promote its healing.

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January 2018
Volume 15 Issue 1

Print ISSN: 1792-0981
Online ISSN:1792-1015

2016 Impact Factor: 1.261
Ranked #50/128 Medicine Research and Experimental
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APA
Huang, G., Yi, G., Wu, L., Feng, S., Wu, W., Peng, L. ... Lu, X. (2018). Protective effect of histatin 1 against ultraviolet‑induced damage to human corneal epithelial cells. Experimental and Therapeutic Medicine, 15, 679-684. https://doi.org/10.3892/etm.2017.5503
MLA
Huang, G., Yi, G., Wu, L., Feng, S., Wu, W., Peng, L., Yi, R., Ma, W., Lu, X."Protective effect of histatin 1 against ultraviolet‑induced damage to human corneal epithelial cells". Experimental and Therapeutic Medicine 15.1 (2018): 679-684.
Chicago
Huang, G., Yi, G., Wu, L., Feng, S., Wu, W., Peng, L., Yi, R., Ma, W., Lu, X."Protective effect of histatin 1 against ultraviolet‑induced damage to human corneal epithelial cells". Experimental and Therapeutic Medicine 15, no. 1 (2018): 679-684. https://doi.org/10.3892/etm.2017.5503