May 2006
Volume 47, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2006
The Effect of MB500 on Cultured Human Corneal Epithelium: In vitro Study (II)
J. Lee; Y.S. In; J.–H. Ko; M.–K. Park; W.R. Wee; J.H. Lee; M.K. Kim
Author Affiliations & Notes
  • J. Lee
    Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Republic of Korea
    Clinical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
  • Y.S. In
    Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Republic of Korea
    Clinical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
  • J.–H. Ko
    Clinical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
  • M.–K. Park
    MD Bioalpha, Daejeon, Republic of Korea
  • W.R. Wee
    Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Republic of Korea
    Clinical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
  • J.H. Lee
    Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Republic of Korea
    Clinical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
  • M.K. Kim
    Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Republic of Korea
    Clinical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
  • Footnotes
    Commercial Relationships  J. Lee, None; Y.S. In, None; J. Ko, None; M. Park, MD bioalpha, E; W.R. Wee, None; J.H. Lee, None; M.K. Kim, None.
  • Footnotes
    Support  SNUH Grant 06–2004–013–0
Investigative Ophthalmology & Visual Science May 2006, Vol.47, 1595. doi:
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      J. Lee, Y.S. In, J.–H. Ko, M.–K. Park, W.R. Wee, J.H. Lee, M.K. Kim; The Effect of MB500 on Cultured Human Corneal Epithelium: In vitro Study (II) . Invest. Ophthalmol. Vis. Sci. 2006;47(13):1595.

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Abstract

Purpose: : We reported MB500(MDbioalpha, Daejeon, Korea) promoted the increase of hyaluronan in corneal epithelial cells, suggesting positive effect on wound healing(presented in ARVO of 2005; 2135/ B904). We investigated the effect of MB 500 on the expression of various genes associated with hyaluronan biosynthesis or mucin secretion in cultured human corneal epithelial cells.

Methods: : Various concentrations(1–50uM) of MB500 were applied to the cultured human corneal epithelial cells for 48 hours and then supernatants were collected. The expression of mRNAs of hyaluronan synthase(HAS)–1, 2, 3, P2Y2, MMP–9, and UMPK was measured using RT–PCR. Semiquantitative analysis was done in a ratio of density of above genes to density of GAPDH with image analyzer (Vilberlourmat) and densitometry (Tina 2.0, Raytest, Straubenhardt, Germany).

Results: : The mean density of HAS3 gene in cells treated with 10uM MB500 was increased by 38% compared to that in cells with no treatment. The mean density of P2Y2 gene in cells treated with 5uM MB500 was enhanced by 29% compared to that in cells with no treatment. The expression of mRNA of HAS–1, 2 MMP–9, UMPK genes in cultured human corneal epithelial cells was not significantly increased after incubation with MB500.

Conclusions: : The application of MB500 increases the expression of HAS3 and P2Y2 genes in human corneal epithelium, suggesting enhancing effect on hyaluronan synthesis and mucin secretion in dry eye.

Keywords: cornea: tears/tear film/dry eye • cornea: basic science • cornea: epithelium 
© 2006, The Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Permission to republish any abstract or part of an abstract in any form must be obtained in writing from the ARVO Office prior to publication.
Copyright © 2025 Association for Research in Vision and Ophthalmology.
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