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Autoimmune phenomena in ocular cicatricial pemphigoid
American Journal of Ophthalmology
|April 1, 1977
Summary
Ocular cicatricial pemphigoid is linked to tissue-fixed immunoglobulins and complement deposition in the conjunctiva. These findings highlight the role of immune system components in the disease's pathogenesis.
Area of Science:
- Ophthalmology
- Immunology
- Pathology
Background:
- Ocular cicatricial pemphigoid (OCP) is a chronic autoimmune blistering disease affecting the eyes.
- Understanding the immunological mechanisms underlying OCP is crucial for diagnosis and treatment.
Purpose of the Study:
- To investigate the role of tissue-fixed immunoglobulins and complement in the pathogenesis of ocular cicatricial pemphigoid.
- To correlate clinical findings with immunological markers in OCP patients.
Main Methods:
- Schirmer tests for tear volume and visual acuity measurements.
- Bacterial cultures of eyelids.
- Direct immunofluorescence of conjunctival biopsies to detect immunoglobulins and complement.
- Indirect immunofluorescence of patient sera for circulating antibodies.
Main Results:
- Reduced tear volume and visual acuity correlated with disease severity.
- Immunoglobulins (IgG, IgA, IgM) were detected in the conjunctival basement membrane of 67% of affected patients.
- C3 complement deposition was observed in the basement membrane of some patients.
- Circulating antibodies to conjunctival epithelium were found in some patients, but not to basement membrane.
Conclusions:
- Tissue-fixed immunoglobulins in the conjunctiva are important in OCP pathogenesis.
- Complement deposition may be associated with acute OCP.
- Circulating antibodies to conjunctival epithelium can occur in OCP, but basement membrane antibodies are not consistently detected.