Inducible MicroRNA-214 Contributes to the Suppression of NF-κB-mediated Inflammatory Response Via Targeting Gene in Fish

Overview

Journal J Biol Chem

Specialty Biochemistry

Date 2017 Feb 26

PMID 28235799

Citations 30

Authors

Qing Chu

Yuena Sun

Junxia Cui

Tianjun Xu

Affiliations

Soon will be listed here.

Abstract

Upon recognition of bacterial pathogens by pattern recognition receptors, cells are activated to produce pro-inflammatory cytokines and type I IFN by multiple signaling pathways. Every step of the process must be precisely regulated to prevent dysregulation. MicroRNAs (miRNAs) have been shown to be important regulators with profound effects on inflammatory response. Nevertheless, the miRNA-mediated regulatory mechanism remains unclear in fish species. Here, we addressed the role of miiuy croaker miR-214 in the bacteria triggered inflammatory response. miR-214 could significantly be up-regulated by and LPS stimulation. Up-regulating miR-214 subsequently inhibits the production of inflammatory cytokines by targeting to avoid excessive inflammation. Moreover, the negative regulatory mechanism of miR-214 has been demonstrated to be via the myd88-mediated NF-κB pathway. This is the first to focus on miR-214 acting as the negative regulator involved in the bacteria-triggered inflammatory response and thus may provide knowledge on the host-cell regulator responses to microbial infection.

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