PMID: 9436470Jun 1, 1997Paper

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

Immunology Letters
A Navarrete SantosJ Langner

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.

References

Jan 1, 1992·Annual Review of Immunology·L H Glimcher, C J Kara
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Mar 1, 1983·Collagen and Related Research·H G Fassbender
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Citations

May 18, 2000·Biochemical and Biophysical Research Communications·A Navarrete SantosB Fischer
Jul 9, 2002·Wound Repair and Regeneration : Official Publication of the Wound Healing Society [and] the European Tissue Repair Society·Evert N LammeEsther Middelkoop
Mar 25, 2005·The Journal of Biological Chemistry·Pritam SenguptaBarbara D Smith
Feb 14, 2002·Rheumatic Diseases Clinics of North America·Maripat Corr, Gary S Firestein

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