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  • Title: RNA-Seq analysis of non-small cell lung cancer in female never-smokers reveals candidate cancer-associated long non-coding RNAs.
    Author: Li J, Bi L, Shi Z, Sun Y, Lin Y, Shao H, Zhu Z.
    Journal: Pathol Res Pract; 2016 Jun; 212(6):549-54. PubMed ID: 27067812.
    Abstract:
    We aimed to elucidate the potential mechanisms of long non-coding RNAs (lncRNAs) in the progression of non-small cell lung cancer (NSCLC). The microarray datasets of GSE37764, including 3 primary NSCLC tumors and 3 matched normal tissues isolated from 6 Korean female never-smokers, were downloaded from Gene Expression Omnibus database. The differentially expressed lncRNAs and mRNA in NSCLC samples were identified using NOISeq package. Co-expression network of differentially expressed lncRNAs and mRNA was established. Gene Ontology (GO) and pathway enrichment analysis were respectively performed. Finally, lncRNAs related to NSCLC were predicted by blasting the differentially expressed lncRNAs with all predicted lncRNAs related to NSCLC. A total of 182 and 539 differentially expressed lncRNAs and mRNA (109 up- and 73 down-regulated lncRNAs; 307 up- and 232 down-regulated mRNA) were respectively identified. Among them, 4 up-regulated lncRNAs, like lnc-geranylgeranyl diphosphate synthase 1 (GGPS1), lnc-zinc finger protein 793 (ZNF793) and lnc-serine/threonine kinase 4 (STK4), and 4 down-regulated lncRNAs including lnc-LOC284440 and lnc-peptidylprolyl isomerase E-like pseudogene (PPIEL), and lnc-zinc finger protein 461 (ZNF461) were predicted related to NSCLC. lncSSPS1, lnc-ZNF793 and lnc-STK4 were co-expressed with linker for activation of T cells (LAT) and Lck interacting transmembrane adaptor 1 (LIME1). Lnc-LOC284440, lnc-PPIEL and lnc-ZNF461 were co-expressed with Src-like-adaptor 2 (SLA2) and defensin beta 4A (DEFB4A). Our study indicates that immune response may be a crucial mechanism involved in NSCLC progression. Lnc-GGPS1, lnc-ZNF793, lnc-STK4, lnc-LOC284440, lnc-PPIEL, and lnc-ZNF461 may be involved in immune response for promoting NSCLC progression via co-expressing with LAT, LIME1, SLA2 and DEFB4A.
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