May 1999
Volume 40, Issue 6
Free
Articles  |   May 1999
Definition of ocular antigens in ciliary body and retinal ganglion cells by the marker antibody pANCA.
Author Affiliations
  • L K Gordon
    Department of Ophthalmology, University of California, Los Angeles, USA.
  • M Eggena
    Department of Ophthalmology, University of California, Los Angeles, USA.
  • S R Targan
    Department of Ophthalmology, University of California, Los Angeles, USA.
  • J Braun
    Department of Ophthalmology, University of California, Los Angeles, USA.
Investigative Ophthalmology & Visual Science May 1999, Vol.40, 1250-1255. doi:
  • Views
  • PDF
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      L K Gordon, M Eggena, S R Targan, J Braun; Definition of ocular antigens in ciliary body and retinal ganglion cells by the marker antibody pANCA.. Invest. Ophthalmol. Vis. Sci. 1999;40(6):1250-1255.

      Download citation file:


      © ARVO (1962-2015); The Authors (2016-present)

      ×
  • Supplements
Abstract

PURPOSE: A subset of patients with anterior uveitis express the marker, perinuclear anti-neutrophil cytoplasmic antibody (pANCA). In this study, recombinantly isolated pANCA monoclonal antibodies were used to search for ocular cells expressing the pANCA antigen. METHODS: Paraffin sections of human ocular tissues obtained after death were analyzed by immunohistochemistry to identify cell types expressing pANCA antigen. Microdissected eye-bank ocular tissue was characterized by western blot analysis to confirm antigen expression and identify candidate protein species. RESULTS: Immunohistochemical analysis with pANCA monoclonal antibodies revealed cytoplasmic antigen expression in retinal ganglion cells and ciliary body epithelium. pANCA antigen expression was restricted to tissues bearing these cell types by western blot analysis. A common set of epitope-positive protein species was shared by the two tissues (28 kDa, 80 kDa, and 90 kDa). Comparison of ocular tissues from seven subjects revealed no heterogeneity in antigen expression. CONCLUSIONS: In this study, novel cytoplasmic antigens of the pANCA marker antibody expressed in ciliary body and retinal tissue were identified. Validation of these antigens as targets of inflammation in pANCA+ uveitis requires further biochemical and immunologic analysis.

×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×