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Ethyl pyruvate ameliorates endotoxin-induced corneal inflammation
Divya Gupta1, Yiqin Du, Jordan Piluek
1Department of Ophthalmology, University of Pittsburgh, Pittsburgh, PA, USA.
Investigative Ophthalmology & Visual Science
|August 25, 2012
Summary
Ethyl pyruvate (EP) effectively reduced corneal inflammation in a mouse model. This compound decreased LPS-induced haze and inflammatory cell infiltration, showing therapeutic potential for corneal inflammatory conditions.
Area of Science:
- Ophthalmology
- Immunology
- Pharmacology
Background:
- Corneal inflammation is a significant cause of vision impairment.
- Lipopolysaccharide (LPS) is a potent inducer of inflammatory responses in the cornea.
- Novel therapeutic strategies are needed to manage corneal inflammation effectively.
Purpose of the Study:
- To investigate the anti-inflammatory effects of ethyl pyruvate (EP) in a mouse model of LPS-induced corneal inflammation.
- To compare the efficacy of EP with a standard corticosteroid treatment.
Main Methods:
- Corneal inflammation was induced in C57BL/6 mice using intrastromal LPS injection.
- Mice were treated with ethyl pyruvate (EP) or prednisolone acetate (PRED FORTE) as a positive control.
- Corneal tissues were analyzed using in vivo confocal microscopy, flow cytometry, and immunohistochemistry for inflammatory markers.
Main Results:
- Ethyl pyruvate (EP) treatment significantly reduced LPS-induced corneal haze by twofold.
- Both EP and prednisolone acetate (PRED FORTE) treatments markedly decreased neutrophil and macrophage infiltration.
- EP and PRED FORTE effectively reduced the expression of pro-inflammatory cytokines TNF-α and IL-6.
Conclusions:
- Ethyl pyruvate (EP) demonstrates significant anti-inflammatory properties in LPS-induced corneal inflammation.
- EP shows potential as a therapeutic agent for inhibiting corneal inflammation.
- Further research is warranted to explore the clinical application of EP in ophthalmology.
