May 2008
Volume 49, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2008
Protective Effects of Catechin After UV Irradiation in Cultured Human Lens Epithelial Cells
Author Affiliations & Notes
  • J. Koh
    Department of Ophthalmology, Chosun University College Medicine, Gwangju, Republic of Korea
  • M. Jung
    Department of Ophthalmology, Soonchunhyang University College Medicine, Seoul, Republic of Korea
  • S. Kim
    Department of Ophthalmology, Soonchunhyang University College Medicine, Seoul, Republic of Korea
  • Y. Lee
    Department of Ophthalmology, Chosun University College Medicine, Gwangju, Republic of Korea
  • Footnotes
    Commercial Relationships  J. Koh, None; M. Jung, None; S. Kim, None; Y. Lee, None.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science May 2008, Vol.49, 1457. doi:
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    • Get Citation

      J. Koh, M. Jung, S. Kim, Y. Lee; Protective Effects of Catechin After UV Irradiation in Cultured Human Lens Epithelial Cells. Invest. Ophthalmol. Vis. Sci. 2008;49(13):1457.

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Abstract

Purpose: : To evaluate the protective effects of Epigallocatechin gallate (EGCG) against UV irradiation in cultured human lens epithelial cells.

Methods: : UV irradiation was produced by a UV lamp for 30 seconds with an irradiance of 0.6 mW/cm2. After 5 minutes and 1 hour, we administered different concentration of EGCG (0, 5, 10, 15, 25, 50, 100 uM). The cell count was checked under a microscope using a counting chamber and the cell viability was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay.

Results: : The cell count of cultured human lens epithelial cells after UV irradiation was markedly increased in the EGCG administrated group, compared with the non-administrated group. The cell viability of cultured human lens epithelial cells after UV irradiation was markedly increased in the EGCG administrated group and was increased in a as dose-dependent way as determined by the MTT assay.

Conclusions: : The administration of EGCG increased the cell count and the cell viability after UV irradiation in cultured human lens epithelial cells; this suggests that EGCG provided protection against UV damage in cultured human lens epithelial cells.

Keywords: radiation damage: light/UV • cell survival 
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