RESUMO
Objective To investigate the clinical value of tissue and blood long noncoding RNA(lncRNA) detection in the patients with hepatocellular cancer(HCC).Methods The HCC tissue sample,blood sample, suspected HCC puncture sample and blood sample from the persons undergoing healthy physical examination were selected for conducting the study.The six lncRNAs which were more than 5-fold expression amount were picked out in the 338 transcripts with abnormal high expression.The expression amount of lncRNA AK057037 in HCC tissue and serm tissue was detected by using the real time quantitative polymerase chain reaction and in situ hybridization.Then the results were statistically analyzed.Results The six lncRNAs were highly ex-pressed in the tissues and blood of the liver cancer,and the difference was statistically significant(P<0.05). Compared with healthy people,the relative expression of AK057037 in the tissues and blood of the liver cancer increased significantly,and the relative expression level in tumor and paracancerous tissues was statistically significant(P<0.05).As the tumor progresses,the relative expression of AK057037 was further enhanced. There was a higher relative expression in advanced liver cancer especially,and the difference was statistically significant(P<0.05).The results of the receiver operating characteristic curve showed that the area under curve of AK057037 was 0.834(95% CI 0.705-0.918)in the blood specimen,and its diagnostic efficiency was better than that of commonly used nucleic acid marker miR-29a.Conclusion lncRNA AK057037 is highly ex-pressed in HCC sample and blood,and can be used for clinical detection of HCC.