Identification of Differentially Expressed Long Non-coding RNAs in Polarized Macrophages

Scientific Reports
Zikun HuangJunming Li

Abstract

Macrophages display remarkable plasticity, with the ability to undergo dynamic transition between classically and alternatively activated phenotypes. Long non-coding RNAs (lncRNAs) are more than 200 nucleotides in length and play roles in various biological pathways. However, the role of lncRNAs in regulating macrophage polarization has yet to be explored. In this study, lncRNAs expression profiles were determined in human monocyte-derived macrophages (MDMs) incubated in conditions causing activation toward M(IFN-γ + LPS) or M(IL-4) phenotypes. Compared with primary MDMs, 9343 lncRNAs and 5903 mRNAs were deregulated in M(IFN-γ + LPS) group (fold change ≥ 2.0, P < 0.05), 4592 lncRNAs and 3122 mRNAs were deregulated in M(IL-4) group. RT-qPCR results were generally consistent with the microarray data. Furthermore, we found that TCONS_00019715 is expressed at a higher level in M(IFN-γ + LPS) macrophages than in M(IL-4) macrophages. TCONS_00019715 expression was decreased when M(IFN-γ + LPS) converted to M(IL-4) whereas increased when M(IL-4) converted to M(IFN-γ + LPS). Knockdown of TCONS_00019715 following the activation of THP-1 cellls using IFN-γ and LPS diminished the expression of M(IFN-γ + LPS) markers, and elevated the expre...Continue Reading

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Datasets Mentioned

BETA
GM-CSF

Methods Mentioned

BETA
density gradient centrifugation
ELISA
electrophoresis
Feature Extraction
PCR

Software Mentioned

GeneSpring GX
GENCODE
Arraystar
Agilent Feature Extraction

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