脲溶性色素相关抗原诱导实验性葡萄膜炎研究

目的 探讨脲溶性牛黑素相关抗原能否在不同大鼠身上诱导实验性自身免疫性葡萄膜炎。 方法 将脲溶性牛黑素相关抗原加弗氏完全佐剂和百日咳杆菌分别免疫Lewis、F344及Wistar大鼠，通过临床观察和组织病理学对动物模型作动态观察比较。 结果 脲溶性牛黑素相关抗原可在Lewis、F344及Wistar大鼠身上诱导出实验性自身免疫性葡萄膜炎，其表现为双眼同时发病，以眼前段为主，个别严重者可伴有局灶性脉络膜炎，不伴视网膜炎和松果体炎，与牛黑素相关抗原所诱发的实验性自身免疫性前葡萄膜炎相类似。Lewis和F344大鼠发病时间及炎症严重程度相似，而Wistar大鼠发病时间较迟，炎症较轻。 结论 脲溶性牛黑素相关抗原可在Lewis、F344和Wistar大鼠身上诱导出实验性自身免疫性前葡萄膜炎。Wistar大鼠与Lewis和F344大鼠相比，发病时间较迟，炎症改变较轻，这种差异可能与遗传背景不同有关。(中华眼底病杂志,1998,14:149-152)

Experimental study of autoimmune uveitis induced by urea soluble fraction of bovine melanin-associated antigen

Purpose To investigate whether experimental autoimmune uveitis can be induced equally in different rats by urea soluble fraction of bovine melanin-associated antigen(USF-BMAA),and,if so,difference among them. Methods Lewis rats,F344 rats,Wistar rats were immunized with USF-BMAA emulsified with complete Freud is adijuvant and Bordelella pertussis to induce experimental autoimmune uveitis.The animal models were investigated clinically and histopathologically and compared with each other. Rusults Experimental autoimmune uveitis could be induced in Lewis rats,F344 rats and Wistar rats with US-BMAA.Clinical and histopathalogical examination showed that bilateral ocular inflammation developed after immunization 9-13 days.Although inflammation was mainly located in anterior uvea,a mild focal choroiditis was noted in those with severe anterior inflammation.No inflammation was observed in the retina and pineal gland.Experimental autoimmune uveieis induced with USF-BMAA was similar to experimental autoimmune anterior uveitis incited with BMAA presented by other authors.Inflammation induced with USF-BMAA in F344 rats and in Lewis rats was quite similar in the severity and course of the model.But the inflammation was less in Wistar rats compared with that in Lewis rats and F344 rats. Conclusion Experimental autoimmune anterior uveitis was successfully induced with USF-BMAA in Lewis rats,F344 rats and Wistar rats.The difference with regard to the severity among these aminals were propably attributed to their genetic bankground.(Chin J Ocul Fundus Dis,1998,14:149-152)