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Lupus, Vol. 16, No. 12, 939-946 (2007)
DOI: 10.1177/0961203307084158
© 2007 SAGE Publications

Microarray analysis of microRNA expression in peripheral blood cells of systemic lupus erythematosus patients

Y. Dai

The Second Clinical Medical College, Jinan University, Shenzhen People's Hospital, Guangdong Province, China

Y.-S. Huang

Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Chongqing Medical University, Chongqing, China, hys{at}live.cn

M. Tang

Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Chongqing Medical University, Chongqing, China

T.-Y. Lv

The Second Clinical Medical College, Jinan University, Shenzhen People's Hospital, Guangdong Province, China

C.-X. Hu

The Second Clinical Medical College, Jinan University, Shenzhen People's Hospital, Guangdong Province, China

Y.-H. Tan

The Second Clinical Medical College, Jinan University, Shenzhen People's Hospital, Guangdong Province, China

Z.-M. Xu

The Second Clinical Medical College, Jinan University, Shenzhen People's Hospital, Guangdong Province, China

Y.-B. Yin

Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Chongqing Medical University, Chongqing, China

MicroRNAs (miRNAs) are noncoding RNA molecules of 21—24 nt that regulate the expression of target genes in a post-transcriptional manner. Evidence indicates that miRNAs play essential roles in embryogenesis, cell differentiation and pathogenesis of human diseases. This study describes a comparison between the miRNA profile of the systemic lupus erythematosus (SLE) patients and the controls to develop further understanding of the pathogenesis of SLE. Peripheral blood mononuclear cells were isolated from blood samples of 23 SLE patients, 10 idiopathic thrombocytopenic purpura patients and 10 healthy controls. The miRNA microarray chip analysis identified 16 miRNAs differentially expressed in SLE. The chip results were confirmed by northern blot analysis. This work indicates that miRNAs are potential diagnosis biomarkers and probable factors involved in the pathogenesis of SLE. Lupus (2007) 16, 936—946.

Key Words: human • SLE • microarray • microRNA • ITP


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