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Ocular immunopathology in murine lupus.
Archives of Pathology & Laboratory Medicine
|March 1, 1977
Summary
Murine lupus in (NZB X W)F1 mice shows immunoglobulin and DNA deposits in ocular tissues. These deposits increase with age, indicating time is crucial for ocular immunopathology development.
Area of Science:
- Ophthalmology
- Immunology
- Rheumatology
Background:
- Murine lupus models are crucial for understanding systemic autoimmune diseases.
- Ocular manifestations can significantly impact patient quality of life in lupus.
Purpose of the Study:
- To investigate the presence and characteristics of immunoglobulin and DNA deposits in the eyes of (NZB X W)F1 mice with lupus.
- To determine the correlation between antibody titers and ocular immunopathology.
Main Methods:
- Immunofluorescence microscopy was used to detect immunoglobulin and DNA deposits.
- Ultrastructural examination provided detailed analysis of deposit locations and associated tissue alterations.
- Age-related progression of ocular findings was assessed.
Main Results:
- Immunoglobulin and DNA deposits were found in the ciliary process and choroid of a majority of lupus mice.
- Ocular deposit prevalence increased from 57% at 36 weeks to 90% at one year.
- Electron-dense deposits were observed between basement laminae, with associated epithelial basement membrane changes.
Conclusions:
- Ocular immunopathology in this murine lupus model is characterized by progressive deposition of immune complexes.
- Age, rather than DNA antibody titer, appears to be a significant factor in the development of ocular lesions.