Humoral and cellular immunity studies in patients with Vogt-Koyanagi-Harada syndrome and pars planitis.

We performed a comprehensive immunologic assessment of 17 patients with Vogt-Koyanagi-Harada syndrome (VKH) and nine with pars planitis (PP). Several variations in humoral and cellular immunity were found when the patients were compared with normal controls. Elevated serum IgD levels, positive results from various autoimmune profile assays, and deviations from normal levels of viral antibody titers were noted in both groups of patients. However, only some VKH patients had elevated beta 2 microglobulin, total complement level and E-active and EA rosette counts. HLA haplotype typing revealed no distinct correlation between patients when compared with a normal population.