Affiliation:
1. Shandong Provincial Maternal and Child Health Care Hospital, Jinan 250014, China
2. Qingdao Hospital of Traditional Chinese Medicine (Qingdao Hiser Hospital), Qingdao 266000, China
3. Qingdao Municipal Hospital, Qingdao 266000, China
Abstract
The understanding of lung injury’s mechanisms at the molecular level is not fully completed. MicroR-NAs (miRNAs), which are part of different pathophysiological processes, are essential biological regulators that operate by suppressing target genes. A mouse model of acute lung
injury (ALI), which is triggered by lipopolysaccharide (LPS), was used to analyze miR-144 level in the ALI mice with or without dexmedetomidine treatment. Inflammation was investigated by the ratio of wet weight’s value to dry weight (W/D) of the lung, the release of cytokines TNF-α,
cytokines IL-6, and cytokines IL-1β, and MPO activity. To validate the effect of dexmedetomidine on miR-144, overex-pression and knockdown of miR-144 were applied to treat antagomir144 and agomir144. The result suggested that LPS-triggered ALI was alleviated by dexmedetomidine.
miR-144 was downregulated in ALI mice. The knockdown of miR-144 attenuated the protection of dexmedetomidine to acute lung injury. Overexpression of miR-144 attenuated the ALI, which was induced by LPS.
Publisher
American Scientific Publishers
Subject
Biomedical Engineering,Medicine (miscellaneous),Bioengineering,Biotechnology