The identification of circular RNAs from peripheral blood mononuclear cells in systemic lupus erythematosus

BMC Medical Genomics

Donge Tang¹  Xinzhou Zhang²  Yong Dai³  Fengping Zheng³  Xiangqi Yu⁴  Dongzhou Liu⁵  Xiaoping Hong⁵ 

[1] Clinical Medical Research Center, The Second Clinical Medical College, Jinan University, Shenzhen People’s Hospital, 518020, Shenzhen, Guangdong, People’s Republic of China;Department of Nephrology, Shenzhen People’s Hospital, The Second Clinical Medical College of Jinan University, 518020, Shenzhen, Guangdong, People’s Republic of China;Department of Nephrology, Shenzhen People’s Hospital, The Second Clinical Medical College of Jinan University, 518020, Shenzhen, Guangdong, People’s Republic of China;Clinical Medical Research Center, The Second Clinical Medical College, Jinan University, Shenzhen People’s Hospital, 518020, Shenzhen, Guangdong, People’s Republic of China;Department of Nephrology, Yueyang First People’s Hospital, 414000, Yueyang, Hunan, People’s Republic of China;Department of Rheumatology and Immunology, Shenzhen People’s Hospital, The Second Clinical Medical College of Jinan University, 518020, Shenzhen, Guangdong, People’s Republic of China;

关键词: SLE;    Circular RNA;    PBMCspredicted;    QRT-PCR;    Diagnosis;   

DOI  :  10.1186/s12920-021-00919-w

来源: Springer

【 摘 要 】

BackgroundThe diagnosis of systemic lupus erythematosus (SLE) is complicated. This study explores the expression of circular RNAs (circRNAs), which are closed non-coding RNAs in which the 5′ and 3′ ends are covalently linked and which work by sponging microRNAs. CircRNAs were extracted from peripheral blood mononuclear cells (PBMCs) of SLE patients to identify novel circRNA species that might be used for SLE diagnosis.MethodsMicroarray was applied to screening circRNAs changes in PBMCs obtained from SLE patients (n = 10) and healthy participants (n = 10), paired for age and sex. We then verified the selected circRNAs in PBMCs using quantitative reverse transcription-polymerase chain reaction amplification (qRT-PCR) in another cohort, including ten paired SLE patients and healthy participants. The correlation between the differential circRNAs and clinical pathology of SLE were analyzed.Results182 up-regulated and 563 significantly down-regulated circRNAs in PBMCs of patients with SLE were identified. Besides, the qRT-PCR results were consistent with the microarray results. The correlation analysis revealed that has_circRNA_100236, has_circRNA_102489, and has_circRNA_101413 were correlated with positive anti-dsDNA, thrombocytopenia, and positive IgG, respectively. Lastly, their miRNAs targets and the binding sites were predicted.ConclusionWe identified some dysregulated circRNAs in PBMCs from SLE patients, and these circRNAs may be developed as the novel biomarkers for the diagnosis of SLE.

【 授权许可】

CC BY