血清miR-122作為藥物肝損傷生物標志物的敏感性和特異性比較
[Abstract]:Objective to compare the sensitivity and specificity of serum microRNA-122 (miR-122) as a biomarker of liver injury and to provide evidence for the evaluation of liver toxicity by miR-122. Methods APAP,1250 mg kg~ (-1), ig), 偽 -naphthaleneisothiocyanate) (ANIT,150 mg kg~ (-1), ig), methionine choline deficiency) diet (MCDD,) was used. Rat liver cell injury model, cholestasis model, fatty liver model and hepatic fibrosis model were established by free ingestion) and carbon tetrachloride (CCI_4,50%,ip), respectively. To evaluate the sensitivity of miR-122 as a biomarker for liver injury. Myocardial injury model and renal injury model were established by IH,2.5 mg kg~ (-1), iv) and GM,80 mg kg~ (-1), im), respectively. To evaluate the specificity of miR-122 as a biomarker of drug liver injury, serum and liver tissues were collected from rats at different time points. The activities of serum alanine aminotransferase (GPT), glutamic oxalacetic transaminase (GOT) and total bilirubin (TBIL) were detected by automatic biochemical instrument. The serum miR-122, was detected by real-time quantitative PCR and the liver tissue was examined by HE staining. Results compared with the control group, the time of serum miR-122 in hepatocyte injury model, cholestasis model, fatty liver model and hepatic fibrosis group was 2 times higher than that in the control group. Both of them were earlier than the traditional biomarkers GPT,GOT and TBIL [no significant increase (2 times) was found at 6 h after administration at 3 and 6 weeks]. At the same time, the range of increase (the maximum rise times were 235.8202.7 and 600.3 times respectively) was also higher than that of the traditional biomarkers GPT,GOT and TBIL (GPT, which were 9.5U 3.9U 2.5 and 6.6 times, respectively. In myocardial injury model, the activity of GOT increased significantly (2.1fold), but the serum miR-122 did not change significantly. There was no significant change in serum miR-122 in renal injury model. Conclusion Serum mi R-122 can be used as biomarker of liver injury, and it is more sensitive and specific than traditional biomarkers such as GPT,GOT and TBIL.
【作者單位】: 西北工業(yè)大學生命學院;中國醫(yī)藥工業(yè)研究總院國家上海新藥安全評價研究中心;
【基金】:國家自然科學基金(81273603) 上海市青年科技啟明星計劃(14QB1400400) 上海科委實驗動物專項基金(14140900900)~~
【分類號】:R965
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