JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
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Aberrantly Expressed Long Non-Coding RNAs In CD8 + T Cells Response to Active Tuberculosis.

Dysregulated expression of long noncoding RNAs (lncRNAs) has been demonstrated as being implicated in a variety of human diseases. In the study we aimed to determine lncRNA profile in CD8+ T cells response to active tuberculosis (TB). We examined the lncRNA expression by microarray in circulating CD8+ T cells isolated from patients with active TB and healthy controls. Change predictions to analysis was used to address functional roles of the deregulated mRNAs. Real-time quantitative PCR (RT-qPCR) was used to validate the microarray result. In total, 328 lncRNAs and 356 mRNAs were differentially expressed in TB CD8+ T cells. Upregulated mRNAs were mainly enriched in cAMP signaling pathway, calcium signaling pathway, and TGF-beta signaling pathway, while downregulated mRNAs were enriched in antigen processing and presentation and natural killer cell mediated cytotoxicity in TB CD8+ T cells. Interestingly, we found that heme oxygenase 1 (HMOX1) was decreased in active TB CD8+ T cells, while its nearby lincRNA XLOC_014219 was upregulated. Subsequent RT-qPCR results confirmed the changes. This is the first research addressing lncRNA expression profiles in active TB CD8+ T cells. The aberrantly expressed lncRNAs observed in the study may provide clues to the dysfunction of CD8+ T cells and so to the pathophysiological properties of active TB. Further studies should focus on the function of lncRNAs involved in active TB. J. Cell. Biochem. 118: 4275-4284, 2017. © 2017 Wiley Periodicals, Inc.

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