GSE98422
Identification of long noncoding RNA RP11-2B6.2 as a positive regulator of type I interferon pathway in lupus nephritis
Methods and Materials  The high throughput RNA sequencing (RNA-seq) data from kidney biopsies of LN patients and controls was applied studied to screen for candidate lncRNAs. Quantitative real-time polymerase chain reaction(RT-qPCR) was used to detect the expression of lncRNAs and individual IFN-stimulated genes (ISGs). Western blotting and dual-luciferace luciferase reporter assay was  adopted to explore the specific function of the candidate lncRNA.     Results  The expression of lncRNA RP11-2B6.2 was significantly increased in the kidney tissues from LN patients compared with those from healthy controls, and positive correlated with the degree of disease activity and renal injuryinjuries. Additionally, expression of LncRNA RP11-2B6.2 could be stimulated by type I IFN. Silencing it RP11-2B6.2 significantly reduced the expression of a group of interferon-stimulating genes(ISGs) including IFIT1, OAS1, etc., Furthermore, it lncRNA RP11-2B6.2 affected the expression of IFN alpha and beta receptor subunit 1 (IFNAR1), phosphorylation of Jak1 and Stat1, and the luciferase activity induced by interferon stimulated response element(ISRE).    Conclusion  Long noncoding RNA RP11-2B6.2 is a positive regulator of the type I IFN signaling pathway in LN. It LncRNA RP11-2B6.2 may contribute to the pathogenesis of LN and provide served as a potentially therapeutic target. Overall design: RNA-seq data from kidney biopsies of LN patients and controls was used to screen for candidate lncRNAs