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M9650132.TXT
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1996-03-09
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Document 0132
DOCN M9650132
TI Establishment and characterization of a murine CD4+ T cell line and
clone that induce experimental autoimmune uveoretinitis in B10.A mice.
DT 9605
AU Rizzo LV; Silver P; Wiggert B; Hakim F; Gazzinelli RT; Chan CC; Caspi
RR; Laboratory of Immunology, NEI/NIH, Bethesda, MD 20892-1858, USA.
SO J Immunol. 1996 Feb 15;156(4):1654-60. Unique Identifier : AIDSLINE
MED/96164598
AB B10.A mice develop experimental autoimmune uveoretinitis after active
immunization with the interphotoreceptor retinoid-binding protein
(IRBP). CD4+ T cells play an important role in the development of the
disease. In this study we have isolated and characterized a CD4+ T cell
line and a T cell clone that induce experimental autoimmune
uveoretinitis when transferred into naive B10.A mice. The cell line was
isolated from draining lymph nodes of IRBP-immunized animals by repeated
cycles of IRBP stimulation. The line was shown to be pathogenic after 4
rounds of in vitro stimulation with IRBP at 5 x 10(6) cells/mouse. A T
cell clone derived from this line by limiting dilution was shown to be
pathogenic when the same number of cells was injected; incidence and
severity of disease, however, were much lower. After 16 rounds of
IRBP-specific stimulation the cell line was pathogenic at 10(5)
cells/mouse. Analysis of the V beta repertoire revealed that at this
point the line was mostly composed of V beta 8.2- and V beta 6-positive
cells (> 80% of the population). The uveitogenic clone expressed V beta
8.2. Both the T cell line and the clone elaborated an unrestricted
lymphokine profile in vitro. However, when these cells were adoptively
transferred into naive recipients, mRNA isolated from the uveitic retina
showed only Th1 type cytokines. These data help to characterize the
nature of pathogenic cells involved in ocular autoimmunity.
DE Animal Cell Line Cytokines/GENETICS CD4-Positive
T-Lymphocytes/*IMMUNOLOGY Gene Expression Gene Rearrangement,
beta-Chain T-Cell Antigen Receptor Mice Receptors, Antigen, T-Cell,
alpha-beta/GENETICS Retinitis/*IMMUNOLOGY/PATHOLOGY Retinol-Binding
Proteins/IMMUNOLOGY RNA, Messenger/GENETICS Th1 Cells/*IMMUNOLOGY
Uveitis/*IMMUNOLOGY/PATHOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).