Effects of Triamcinolone Acetonide on Human Trabecular Meshwork Cells
Author Information
Author(s): Wang Dan, Yi Fan, Bao Jian Yam, Gary Y. H. Lam, Dennis S. C. Pang, Chi Pui
Primary Institution: The Chinese University of Hong Kong
Hypothesis
Does triamcinolone acetonide (TA) have a cytotoxic effect on human trabecular meshwork (TM) cells?
Conclusion
Triamcinolone acetonide was found to be cytotoxic to human TM cells, leading to increased apoptosis and stress responses.
Supporting Evidence
- Both concentrations of TA caused a significant reduction in the number of TM cells as early as day 1.
- Increased expressions of c-jun, c-fos, c-myc, p53, and caspase 3 were observed after TA treatment.
- Significantly increased apoptotic cells were observed after TA treatment for three days.
Takeaway
This study shows that a medicine called triamcinolone can hurt eye cells and make them die, which might cause problems with eye pressure.
Methodology
Human trabecular meshwork cells were treated with triamcinolone acetonide at two concentrations, and cell proliferation and gene expression were measured over five days.
Potential Biases
Potential bias due to the use of a single cell line and the effects of the vehicle used.
Limitations
The study did not explore long-term effects beyond five days or the impact of benzyl alcohol as a vehicle.
Participant Demographics
Human trabecular meshwork cells obtained postmortem from a patient with no history of glaucoma.
Statistical Information
P-Value
p<0.0005
Statistical Significance
p<0.05
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