Down-regulation of MHC class II expression on bovine retinal pigment epithelial cells by cytokines.

Abstract:

:To determine the effect of interleukin-10 (IL-10) and transforming growth factor-beta (TGF-beta) on the down-regulation of MHC class II antigens, bovine retinal pigment epithelial (RPE) cells were incubated with interferon-gamma (IFN-gamma) in different concentrations. Subsequently, the IFN-gamma pretreated RPE cells were cultured with TGF-beta or IL-10 in distinct concentrations and treatment modi. About 10% of native (totally untreated) RPE cells were positive for MHC class II antigens detected with immunocytostaining. Under the influence of IFN-gamma (1,000 U/ml), the number of MHC class II-bearing cells increased to 49.9 +/- 4.5% positive cells after 8 days' incubation. Expression decreased under the most effective TGF-beta treatment (5 ng/ml) to 2.0 +/- 0.9% after 24 h incubation, and under similar IL-10 treatment (200 U/ml) to 3.8 +/- 1.4% after 72 h. This decreasing number of the MHC class II-positive cells may be useful for various eye research studies and, more especially, to RPE cell transplantation in the future.

journal_name

Ophthalmic Res

journal_title

Ophthalmic research

authors

Enzmann V,Stadler M,Wiedemann P,Kohen L

doi

10.1159/000055545

subject

Has Abstract

pub_date

1999-01-01 00:00:00

pages

256-66

issue

4

eissn

0030-3747

issn

1423-0259

pii

55545

journal_volume

31

pub_type

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