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  • Title: Cellular immune response to retinal S-antigen & interphotoreceptor retinoid binding protein fragments in idiopathic human uveitis.
    Author: Rajasingh J, Singh VK, Singh V, Sharma K, Agarwal SS.
    Journal: Indian J Med Res; 1996 Apr; 103():222-6. PubMed ID: 8935743.
    Abstract:
    The role of retinal antigens in idiopathic human uveitis has been studied in 38 patients of uveitis, and 30 patients of systemic connective tissue disease (CTD) and 30 healthy volunteers. Lymphocyte proliferative responses were tested in vitro against native S-antigen, its uveitopathogenic peptides (peptide M, peptide G), yeast histone H3 peptide and uveitopathogenic fragment of interphotoreceptor retinoid binding protein (IRBP: R16) to establish their role in pathogenesis of human uveitis. Seven patients with uveitis, and none among CTD patients and healthy volunteers, responded (stimulation index > 3) to at least one retinal antigen used. One uveitis patient showed response to native S-antigen, peptide M and yeast histone H3. One responded to both S-antigen and peptide M and another responded to both peptide G and R16 peptide. Two responded to S-antigen only, one to peptide M and one to peptide G. In addition, one uveitis patient responded to yeast histone H3 only. These results suggest that retinal antigens may play a role in the etiopathogenesis of a subset of idiopathic human uveitis.
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