Related Experiment Video
Updated: Mar 3, 2026
04:48
Establishing a Severe Corneal Inflammation Model in Rats Based on Corneal Epithelium Curettage Combined with Corneal Sutures
Published on: November 22, 2024
932
Corticosteroids effects on LPS-induced rat inflammatory keratocyte cell model
Huize Yan1,2, Yingwei Wang1,2, Shuhao Shen3
1Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China.
Plos One
|April 28, 2017
Summary
Corticosteroids minimally impact keratocyte proliferation but effectively reduce inflammation markers and maintain collagen secretion in inflamed cells. Prednisolone acetate is recommended for early keratitis treatment.
Area of Science:
- Ophthalmology
- Cell Biology
- Pharmacology
Background:
- Corticosteroids are potent anti-inflammatory agents.
- Their use in keratitis remains debated.
- Understanding their effect on keratocytes is crucial.
Purpose of the Study:
- To investigate corticosteroid effects on normal and inflamed keratocytes in vitro.
- To assess impacts on cell proliferation, viability, morphology, and migration.
- To analyze inflammatory cytokine and extracellular matrix component expression.
Main Methods:
- Cultured rat keratocytes treated with lipopolysaccharide (LPS) to induce inflammation.
- Corticosteroid treatments included prednisolone acetate (PA), dexamethasone (Dex), and fluorometholone (Flu).
- Assays included CCK8 for viability, ELISA for cytokines (TNF-α, IL-6, IL-1β), Western blotting for Col VI and MMP9, and immunofluorescence for Col I and Col VI.
Main Results:
- In normal conditions, corticosteroids slightly affected proliferation and migration, suppressed Col I/VI secretion, and increased MMP9.
- In LPS-induced inflammation, corticosteroids significantly reduced TNF-α, IL-6, and MMP9 levels.
- Col I and Col VI secretion was maintained in inflamed keratocytes treated with corticosteroids.
Conclusions:
- Corticosteroids have minimal effects on keratocyte proliferation/migration but effectively reduce inflammation and preserve extracellular matrix components.
- Prednisolone acetate is suggested for early-stage clinical treatment of keratitis.
