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Identification of differentially expressed circulating exosomal lncRNAs in IgA nephropathy patients.


ABSTRACT: BACKGROUND:Although immunoglobulin A nephropathy (IgAN) is one of the foremost primary glomerular disease, treatment of IgAN is still in infancy. Non-invasive biomarkers are urgently needed for IgAN diagnosis. We investigate the difference in expression profiles of exosomal long non-coding-RNAs (lncRNAs) in plasma from IgAN patients compared with their healthy first-degree relatives, which may reveal novel non-invasive IgAN biomarkers. METHODS:We isolated exosomes from the plasma of both IgAN patients and their healthy first-degree relatives. High-throughput RNA sequencing and real-time quantitative polymerase chain reaction (qRT-PCR) was used to validate lncRNA expression profiles. Pathway enrichment analysis was used to predict their nearest protein-coding genes. RESULTS:lncRNA-G21551 was significantly down-regulated in IgAN patients. Interestingly, the nearest protein-coding gene of lncRNA-G21551 was found to be encoding the low affinity receptor of the Fc segment of immunoglobulin G (FCGR3B). CONCLUSIONS:Exosomal lncRNA-G21551, with FCGR3B as the nearest protein-coding gene, was down-regulated in IgAN patients, indicating its potential to serve as a non-invasive biomarker for IgAN.

SUBMITTER: Guo N 

PROVIDER: S-EPMC7110735 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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Identification of differentially expressed circulating exosomal lncRNAs in IgA nephropathy patients.

Guo Na N   Zhou Qin Q   Huang Xiang X   Yu Jianwen J   Han Qianqian Q   Nong Baoting B   Xiong Yuanyan Y   Liang Peifen P   Li Jiajia J   Feng Min M   Lv Jun J   Yang Qiongqiong Q   Yang Qiongqiong Q  

BMC immunology 20200331 1


<h4>Background</h4>Although immunoglobulin A nephropathy (IgAN) is one of the foremost primary glomerular disease, treatment of IgAN is still in infancy. Non-invasive biomarkers are urgently needed for IgAN diagnosis. We investigate the difference in expression profiles of exosomal long non-coding-RNAs (lncRNAs) in plasma from IgAN patients compared with their healthy first-degree relatives, which may reveal novel non-invasive IgAN biomarkers.<h4>Methods</h4>We isolated exosomes from the plasma  ...[more]

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