Long noncoding RNA IL6-AS1 is highly expressed in chronic obstructive pulmonary disease and is associated with interleukin 6 by targeting miR-149-5p and early B-cell factor 1.

Long noncoding RNA IL6-AS1 is highly expressed in chronic obstructive pulmonary disease and is associated with interleukin 6 by targeting miR-149-5p and early B-cell factor 1.

Clinical and translational medicine (2021-07-30)

Erkang Yi, Jiahuan Zhang, Mengning Zheng, Yi Zhang, Chunxiao Liang, Binwei Hao, Wei Hong, Biting Lin, Jinding Pu, Zhiwei Lin, Peiyu Huang, Bing Li, Yumin Zhou, Pixin Ran

PMID34323408

ABSTRACT

Chronic obstructive pulmonary disease is a complex condition with multiple etiologies, including inflammation. We identified a novel long noncoding RNA (lncRNA), interleukin 6 antisense RNA 1 (IL6-AS1), which is upregulated in this disease and is associated with airway inflammation. We found that IL6-AS1 promotes the expression of inflammatory factors, especially interleukin (IL) 6. Mechanistically, cytoplasmic IL6-AS1 acts as an endogenous sponge by competitively binding to the microRNA miR-149-5p to stabilize IL-6 mRNA. Nuclear IL6-AS1 promotes IL-6 transcription by recruiting early B-cell factor 1 to the IL-6 promoter, which increases the methylation of the H3K4 histone and acetylation of the H3K27 histone. We propose a model of lncRNA expression in both the nucleus and cytoplasm that exerts similar effects through differing mechanisms, and IL6-AS1 probably increases inflammation via multiple pathways.

MATERIALS

Product Number

Brand

Product Description

17-700

Sigma-Aldrich

Magna RIP^® RNA-Binding Protein Immunoprecipitation Kit, RNA Immunoprecipitation (RIP) Kit containing all necessary reagents to perform 12 individual RNA-binding protein immunoprecipitation (RIP) reactions using protein A/G magnetic beads.