Detection of CXCR4 (CD184) expression on CD19+ B cells by flow cytometry in patients of SLE, comparing its level in the development of lupus activity and pathogenic process of SLE internal organ involvement/ mucocutaneus and/or musculoskeletal involvement. Identify this correlation will be useful for clarifying other accessory factors to improve the diagnosis, better treatment strategy, follow up as well as prognosis for these patients
The objective of this study is to estimate the possible role of CD184 in the pathogenesis of SLE; comparing its level among SLE cases to healthy controls.