PMID: 9444427Jan 28, 1998Paper

Immune cell biochemical abnormalities in systemic lupus erythematosus

Clinical and Experimental Rheumatology
S N LiossisG C Tsokos

Abstract

Novel data have emerged which attempt to characterize the biochemical abnormalities that are exhibited by lupus immune cells. Lupus lymphocytes display abnormal antigen-receptor-mediated signaling, consisting of increased Ca2+ mobilization and increased protein tyrosyl phosphorylation that are independent of disease activity. Abnormalities in the expression and function of co-stimulatory molecules (B7-CD28 and CD40-CD40L) have been established. Transcription of cytokine genes and the methylation of DNA which affects multiple genes are also abnormal. Finally, aberrations of the apoptosis of lupus immune cells are contributors to the pathogenesis of the disease.

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