The Journal of Immunology, Vol 138, Issue 5 1416-1420, Copyright © 1987 by American Association of Immunologists

ARTICLES

Uveitogenic potential of lymphocytes sensitized to interphotoreceptor retinoid-binding protein

CG McAllister, B Wiggert, GJ Chader, T Kuwabara and I Gery

In our previous study rats immunized with bovine retinal interphotoreceptor retinoid-binding protein (IRBP) were found to develop inflammation in the eye and the pineal gland. This inflammatory disease was distinct in several aspects from experimental autoimmune uveoretinitis (EAU) induced by the retinal S-antigen (S-Ag). The current study examined the adoptive transfer of IRBP-induced EAU. We established that lymphocytes from IRBP immunized donor rats were capable of transferring EAU after in vitro stimulation with either IRBP (lymph node or spleen cells) or concanavalin A (spleen cells only). Recipients of these cells developed uveoretinitis and pinealitis identical to the actively induced disease. As compared with the S-Ag system, recipients of IRBP sensitized cells developed disease earlier, and smaller numbers of cells were needed to transfer EAU. Development of inflammation was directly related to a cellular response to the specific retinal antigen used for sensitization. Moreover, the unique nature of ocular inflammation was reestablished in the IRBP system: high proportions of polymorphonuclear leukocytes were found in the inflamed tissue of certain recipients despite a lack of a humoral response to the specific antigen. In contrast to the eye, only mononuclear leukocytes comprised the inflammation in the pineal gland.

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