Related Experiment Videos
Adhesion molecules in iris biopsy specimens from patients with uveitis
E La Heij1, R W Kuijpers, S G Baarsma
1Department of Ophthalmology, University Hospital Rotterdam, Dijkzigt, Netherlands.
The British Journal of Ophthalmology
|June 26, 1998
Summary
Increased expression of adhesion molecules in the iris was observed in uveitis patients. This finding suggests adhesion molecules play a key immunoregulatory role in uveitis pathogenesis.
Area of Science:
- Ophthalmology
- Immunology
- Cell Biology
Background:
- T lymphocytes are implicated in uveitis pathogenesis.
- Adhesion molecules regulate T lymphocyte interaction with vascular endothelium.
- Uveitis may involve increased expression of certain adhesion molecules.
Purpose of the Study:
- Investigate the expression of adhesion molecules in the iris of uveitis patients.
- Determine the role of adhesion molecules in the immunopathogenesis of uveitis.
Main Methods:
- Iris biopsy specimens from 11 uveitis patients and 8 controls were analyzed.
- Immunohistochemistry was used with monoclonal antibodies against various adhesion molecules (LECAM, ICAM-1, LFA-1, VCAM-1, VLA-4, HECA-452).
Main Results:
- Significantly higher staining for ICAM-1, LFA-1, and VCAM-1 was observed in uveitis patients compared to controls.
- Other adhesion molecules also showed higher prevalence in uveitis patients, though not statistically significant.
Conclusions:
- Adhesion molecules are upregulated in the iris of uveitis patients.
- These findings support an immunoregulatory role for adhesion molecules in uveitis pathogenesis.