Constitutive expression of HLA class II mRNA in synovial fibroblast-like cells from patients with rheumatoid arthritis .

Abstract:

:We describe the quantification of the absolute amounts of HLA class II mRNA and class II transactivator (CIITA) mRNA by competitive reverse transcription polymerase chain reaction in cultured synovial fibroblast-like cells (SFC) of patients with rheumatoid arthritis. High basal levels of transcription of class II mRNA (10(7)-10(9) molecules/microgram total RNA) and CIITA mRNA were detected in cultured SFC, with DPB < DRB = DQB, although SFC only express small amounts of MHC class II proteins. In contrast to SFC, we did not detect class II mRNA nor CIITA mRNA in skin fibroblasts. After treatment with IFN-gamma, we observed a 3- to 28-fold increase in class II mRNA in SFC and an increase of DRB and DPB in skin fibroblasts from undetectable levels to 10(8)-10(9) molecules/microgram total RNA.

journal_name

Immunol Lett

journal_title

Immunology letters

authors

Navarrete Santos A,Riemann D,Thiele K,Kehlen A,Navarrete Santos A,Langner J

doi

10.1016/s0165-2478(97)02712-0

subject

Has Abstract

pub_date

1997-06-01 00:00:00

pages

53-8

issue

1

eissn

0165-2478

issn

1879-0542

pii

S0165-2478(97)02712-0

journal_volume

58

pub_type

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