期刊
EXPERIMENTAL EYE RESEARCH
卷 83, 期 4, 页码 897-902出版社
ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD
DOI: 10.1016/j.exer.2006.04.013
关键词
RPE65; autoimmunity; experimental autoimmune uveitis; immunopathology; immunotolerance; thymus; mouse strains
资金
- Intramural NIH HHS Funding Source: Medline
We have previously shown that immunization with RPE65 produces in rats of four strains a severe inflammatory eye disease, designated experimental autoimmune uveitis (EAU). Here, we examined the uveitogenicity of RPE65 in six strains of mice. Only one strain, C57B1/6, was found to develop consistently moderate levels of EAU, whereas other strains (BALB/c, B10.A, B10.BR, B10.RIII, C57BL/10J) were found to be essentially resistant to disease induced by RPE65. Analysis of the expression of RPE65 mRNA in thymi of the six mouse strains revealed detectable levels of the transcript in all strains, but with remarkable quantitative differences, with the lowest levels seen in thymi of C57B1/6 mice, the only strain susceptible to RPE65-induced EAU. Moreover, unlike the finding with the mice, no RPE65 mRNA was detected in thymi of any of the four rat strains (Lewis, BN, F344, SHR) all of which are susceptible to the disease. These data thus indicate that the susceptibility to RPE65-induced EAU is inversely related to the thymic expression of the molecule. The data also suggest that this disease can be induced only in mice in which thymic expression of RPE65 is sufficiently low to allow the escape from deletion of T-cells with the adequate capacity to initiate the pathogenic immune response. Published by Elsevier Ltd.
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