title: Silencing of long noncoding RNA AK139328 attenuates ischemia/reperfusion injury in mouse livers.
abstract: Recently, increasing evidences had suggested that long noncoding RNAs (LncRNAs) are involved in a wide range of physiological and pathophysiological processes. Here we determined the LncRNA expression profile using microarray technology in mouse livers after ischemia/reperfusion treatment. Seventy one LncRNAs were upregulated, and 27 LncRNAs were downregulated in ischemia/reperfusion-treated mouse livers. Eleven of the most significantly deregulated LncRNAs were further validated by quantitative PCR assays. Among the upregulated LncRNAs confirmed by quantitative PCR assays, AK139328 exhibited the highest expression level in normal mouse livers. siRNA-mediated knockdown of hepatic AK139328 decreased plasma aminotransferase activities, and reduced necrosis area in the livers with a decrease in caspase-3 activation after ischemia/reperfusion treatment. In ischemia/reperfusion liver, knockdown of AK139328 increased survival signaling proteins including phosphorylated Akt (pAkt), glycogen synthase kinase 3 (pGSK3) and endothelial nitric oxide synthase (peNOS). Furthermore, knockdown of AK139328 also reduced macrophage infitration and inhibited NF-κB activity and inflammatory cytokines expression. In conclusion, these findings revealed that deregulated LncRNAs are involved in liver ischemia/reperfusion injury. Silencing of AK139328 ameliorated ischemia/reperfusion injury in the liver with the activation of Akt signaling pathway and inhibition of NF-κB activity. LncRNA AK139328 might be a novel target for diagnosis and treatment of liver surgery or transplantation.
authors: Department of Physiology and Pathophysiology, Peking University School of Basic Medical Sciences, Beijing, China ; MOE Key Laboratory of Molecular Cardiovascular Science, Peking University, Beijing, China.
authors: Zhenzhen
authors: Z
authors: Chen
authors: Shi
authors: S
authors: Jia
authors: Danhua
authors: D
authors: Li
authors: Junyan
authors: J
authors: Cai
authors: Jian
authors: J
authors: Tu
authors: Bin
authors: B
authors: Geng
authors: Youfei
authors: Y
authors: Guan
authors: Qinghua
authors: Q
authors: Cui
authors: Jichun
authors: J
authors: Yang
mesh_terms: D000410:Alanine Transaminase / Q000097:blood; D000818:Animals; D001219:Aspartate Aminotransferases / Q000097:blood; D033481:Chromosomes, Mammalian; D004195:Disease Models, Animal; D020869:Gene Expression Profiling; D005786:Gene Expression Regulation; D055785:Gene Knockdown Techniques; D023061:Gene Order; D020868:Gene Silencing; D008099:Liver / Q000098:blood supply / Q000378:metabolism* / Q000473:pathology*; D008297:Male; D051379:Mice; D062085:RNA, Long Noncoding; D015427:Reperfusion Injury / Q000097:blood / Q000235:genetics*; D015203:Reproducibility of Results
chemical_list: D062085:RNA, Long Noncoding; D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase