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miR-106a Targets Anoctamin 1 (ANO1) to Regulate Lipopolysaccharide (LPS)-Induced Inflammatory Response in Macrophages

Junfeng Heng, Dingye Wu, Shiqi Lu, Yiming Zhao

Department of Emergency, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China (mainland)

Med Sci Monit 2020; 26:e922479

DOI: 10.12659/MSM.922479

Available online: 2020-08-13

Published: 2020-10-10


BACKGROUND: Sepsis is an organ dysfunction characterized by systemic inflammatory response. Micro(mi)ribonucleic acids take part in the regulation of the inflammatory response in many conditions. However, the role and mechanism of miR-106a and anoctamin 1 (ANO1) in the inflammatory response in sepsis remain largely unknown.
MATERIAL AND METHODS: The serum samples were collected from 31 sepsis patients and healthy volunteers. Lipopolysaccharide (LPS)-treated RAW264.7 cells were used for the study in vitro. The inflammatory response was investigated via interleukin-6 and tumor necrosis factor-alpha levels using quantitative real-time polymerase chain reaction (qRT-PCR) and enzyme-linked immunosorbent assay. The expression abundances of miR-106a and ANO1 were detected via qRT-PCR or western blot. The target association between miR-106a and ANO1 was explored using dual-luciferase reporter analysis.
RESULTS: The inflammatory response was trigged in sepsis and LPS-treated RAW264.7 cells. miR-106a expression was enhanced and ANO1 declined in sepsis and LPS-treated RAW264.7 cells. Overexpression of ANO1 suppressed the inflammatory response and knockdown of ANO1 promoted the inflammatory response in RAW264.7 cells. ANO1 was directly targeted via miR-106a, and miR-106a reversed ANO1-mediated inflammatory inhibition in LPS-treated RAW264.7 cells.
CONCLUSIONS: MiR-106a regulated LPS-induced inflammatory response by targeting ANO1 in RAW264.7 cells, indicating the potential value of miR-106a for treatment of inflammatory diseases, including sepsis.

Keywords: Cell Proliferation, Pelvic Inflammatory Disease, Systemic Inflammatory Response Syndrome



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