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Article

Regulatory effect of Bcl‑2 in ultraviolet radiation‑induced apoptosis of the mouse crystalline lens

  • Authors:
    • Yuchen Dong
    • Yajuan Zheng
    • Jun Xiao
    • Chao Zhu
    • Meisheng Zhao
  • View Affiliations / Copyright

    Affiliations: Department of Ophthalmology, Eye Hospital of The Second Clinical Hospital of Jilin University, Jilin University, Changchun, Jilin 130051, P.R. China
  • Pages: 973-977
    |
    Published online on: December 29, 2015
       https://doi.org/10.3892/etm.2015.2960
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Abstract

The aim of the present study was to analyze the role of Bcl‑2 during the process of apoptosis in the mouse crystalline lens. In total, 12 normal mice served as the control group and 12 Bcl‑2 knockout (K.O) mice served as the experimental group. The mouse crystalline lens was sampled for the detection of Bcl‑2 and caspase‑3 expression following exposure to ultraviolet (UV) radiation. Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) was used to determine Bcl‑2 expression in the groups of normal mice receiving UV radiation or not receiving UV radiation. Samples of the murine crystalline lens were microscopically harvested and analyzed using western blotting. Apoptosis was detected using terminal deoxynucleotidyl transferase dUTP nick‑end labeling (TUNEL) assay. Furthermore, caspase 3 activity was examined using enzyme‑linked immunosorbent assay kits, and RT‑qPCR was used to analyze caspase‑3 expression levels. The results of the present study demonstrated that there was no statistically significant difference in the level of Bcl‑2 gene transcription between the two groups. In addition, UV radiation did not change the macrostructure of the crystalline lens in the group of normal mice or the group of Bcl‑2 K.O mice. The results of the TUNEL assay indicated that the normal‑UV group exhibited a more significant apoptosis level compared with the Bcl‑2 K.O‑UV group. Furthermore, the mRNA expression level of caspase‑3 in the normal‑UV group was significantly higher compared with the normal‑nonUV group (P<0.05), while the levels in the Bcl‑2 K.O‑UV group were significantly higher compared with the Bcl‑2 K.O and normal‑nonUV groups (P<0.05). In addition, the mRNA expression level of caspase‑3 was significantly higher in the normal‑UV, as compared with the Bcl‑2 K.O‑UV group (P<0.05), and the variation trends in caspase‑3 activity were consistent. In conclusion, the results of the present study demonstrated that Bcl‑2 may have an important role in the promotion of UV‑induced apoptosis in the crystalline lens.
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Copy and paste a formatted citation
Spandidos Publications style
Dong Y, Zheng Y, Xiao J, Zhu C and Zhao M: Regulatory effect of Bcl‑2 in ultraviolet radiation‑induced apoptosis of the mouse crystalline lens. Exp Ther Med 11: 973-977, 2016.
APA
Dong, Y., Zheng, Y., Xiao, J., Zhu, C., & Zhao, M. (2016). Regulatory effect of Bcl‑2 in ultraviolet radiation‑induced apoptosis of the mouse crystalline lens. Experimental and Therapeutic Medicine, 11, 973-977. https://doi.org/10.3892/etm.2015.2960
MLA
Dong, Y., Zheng, Y., Xiao, J., Zhu, C., Zhao, M."Regulatory effect of Bcl‑2 in ultraviolet radiation‑induced apoptosis of the mouse crystalline lens". Experimental and Therapeutic Medicine 11.3 (2016): 973-977.
Chicago
Dong, Y., Zheng, Y., Xiao, J., Zhu, C., Zhao, M."Regulatory effect of Bcl‑2 in ultraviolet radiation‑induced apoptosis of the mouse crystalline lens". Experimental and Therapeutic Medicine 11, no. 3 (2016): 973-977. https://doi.org/10.3892/etm.2015.2960
Copy and paste a formatted citation
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Spandidos Publications style
Dong Y, Zheng Y, Xiao J, Zhu C and Zhao M: Regulatory effect of Bcl‑2 in ultraviolet radiation‑induced apoptosis of the mouse crystalline lens. Exp Ther Med 11: 973-977, 2016.
APA
Dong, Y., Zheng, Y., Xiao, J., Zhu, C., & Zhao, M. (2016). Regulatory effect of Bcl‑2 in ultraviolet radiation‑induced apoptosis of the mouse crystalline lens. Experimental and Therapeutic Medicine, 11, 973-977. https://doi.org/10.3892/etm.2015.2960
MLA
Dong, Y., Zheng, Y., Xiao, J., Zhu, C., Zhao, M."Regulatory effect of Bcl‑2 in ultraviolet radiation‑induced apoptosis of the mouse crystalline lens". Experimental and Therapeutic Medicine 11.3 (2016): 973-977.
Chicago
Dong, Y., Zheng, Y., Xiao, J., Zhu, C., Zhao, M."Regulatory effect of Bcl‑2 in ultraviolet radiation‑induced apoptosis of the mouse crystalline lens". Experimental and Therapeutic Medicine 11, no. 3 (2016): 973-977. https://doi.org/10.3892/etm.2015.2960
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