Journal article
Wnt gene expression in human trabecular meshwork cells
Molecular vision, Vol.16(15), pp.122-129
01/28/2010
PMCID: PMC2812481
PMID: 20111673
Abstract
Purpose: The aim of this study was to examine the expression of genes related to the Wnt signaling pathway, such as beta-catenin (CTNNB1) and secreted frizzled-related protein-1 (sFRP1), in human trabecular meshwork (TM) cells. In addition, the effect of oxidative stress on Wnt signaling was evaluated.
Methods: All experiments were conducted using second-or third-passaged human TM cells. cDNA was prepared from total RNA extracted from cells by means of reverse transcription. PCR was then performed to determine the presence of Wnt genes. For oxidative stress, TM cells were treated with 1 mM of H2O2 for 30 min. Actin staining was carried out to verify cell response to oxidative stress. Western blotting was used to measure Wnt-related protein levels after H2O2 treatment.
Results: Positive PCR products were detected for a total of 25 Wnt and Wnt-related genes in human TM cells. Most of the genes identified belonged to the Wnt/beta-catenin pathway. Members of the beta-catenin-independent noncanonical pathways were also found. Oxidative stress did not result in significant changes in beta-catenin and sFRP1 protein levels.
Conclusions: Genes related to canonical and noncanonical Wnt pathways are expressed in human TM cells. It appears that all three Wnt pathways are operative in the TM system. Oxidative stress, while thought to play a role in the development of glaucoma, had little effect on the Wnt activity in TM cells.
Details
- Title: Subtitle
- Wnt gene expression in human trabecular meshwork cells
- Creators
- Rajalekshmy Shyam - Roosevelt UniversityXiang Shen - University of Illinois Urbana-ChampaignBeatrice Y. J. T. Yue - University of Illinois Urbana-ChampaignKelly K. Wentz-Hunter - Roosevelt Univ, Dept Biol Chem & Phys Sci, Chicago, IL 60605 USA
- Resource Type
- Journal article
- Publication Details
- Molecular vision, Vol.16(15), pp.122-129
- PMID
- 20111673
- PMCID
- PMC2812481
- NLM abbreviation
- Mol Vis
- ISSN
- 1090-0535
- eISSN
- 1090-0535
- Publisher
- Molecular Vision
- Number of pages
- 8
- Grant note
- EY01792 / National Eye Institute, Bethesda, Maryland; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Eye Institute (NEI) Roosevelt University Summer Grant R01EY003890 / NATIONAL EYE INSTITUTE; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Eye Institute (NEI)
- Language
- English
- Date published
- 01/28/2010
- Academic Unit
- Anatomy and Cell Biology
- Record Identifier
- 9984949262102771
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