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Identification of LncRNA Linc00513 Containing Lupus-Associated Genetic Variants as a Novel Regulator of Interferon Signaling Pathway
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Identification of LncRNA Linc00513 Containing Lupus-Associated Genetic Variants as a Novel Regulator of Interferon Signaling Pathway
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Identification of LncRNA Linc00513 Containing Lupus-Associated Genetic Variants as a Novel Regulator of Interferon Signaling Pathway
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Journal Article
Identification of LncRNA Linc00513 Containing Lupus-Associated Genetic Variants as a Novel Regulator of Interferon Signaling Pathway
2018
Overview
Systemic lupus erythematosus (SLE) is a complex autoimmune disease characterized by augmented type I interferon signaling. High-throughput technologies have identified plenty of SLE susceptibility single-nucleotide polymorphisms (SNPs) yet the exact roles of most of them are still unknown. Functional studies are principally focused on SNPs in the coding regions, with limited attention paid to the SNPs in non-coding regions. Long non-coding RNAs (lncRNAs) are important players in shaping the immune response and show relationship to autoimmune diseases. In order to reveal the role of SNPs located near SLE related lncRNAs, we performed a transcriptome profiling of SLE patients and identified linc00513 as a significantly over expressed lncRNA containing functional SLE susceptibility loci in the promoter region. The risk-associated G allele of rs205764 and A allele of rs547311 enhanced linc00513 promoter activity and related to increased expression of linc00513 in SLE. We also identified linc00513 to be a novel positive regulator of type I interferon pathway by promoting the phosphorylation of STAT1 and STAT2. Elevated linc00513 expression positively correlated with IFN score in SLE patients. Linc00513 expression was higher in active disease patients than those inactive ones. In conclusion, our data identify two functional promoter variants of linc00513 that contribute to increased level of linc00513 and confer susceptibility on SLE. The study provides new insights into the genetics of SLE and extends the role of lncRNAs in the pathogenesis of SLE.
Publisher
Frontiers Media SA,Frontiers Media S.A
Subject
/ Alleles
/ Cloning
/ CRISPR
/ Disease
/ Female
/ Gene Expression Regulation - immunology
/ Genes
/ Genetic Predisposition to Disease
/ Genomes
/ Humans
/ Interferon Type I - immunology
/ Interferon Type I - metabolism
/ Lupus
/ Lupus Erythematosus, Systemic - genetics
/ Lupus Erythematosus, Systemic - immunology
/ Male
/ Plasmids
/ Polymorphism, Single Nucleotide
/ Promoter Regions, Genetic - genetics
/ RNA, Long Noncoding - metabolism
/ Signal Transduction - genetics
/ Signal Transduction - immunology
/ Single-nucleotide polymorphism
/ STAT1 Transcription Factor - metabolism
/ STAT2 Transcription Factor - metabolism
