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Controlled Clinical Trial
. 2011 Nov;54(5):1767-76.
doi: 10.1002/hep.24538.

Circulating microRNAs as potential markers of human drug-induced liver injury

Philip J Starkey Lewis  1 , James Dear, Vivien Platt, Kenneth J Simpson, Darren G N Craig, Daniel J Antoine, Neil S French, Neeraj Dhaun, David J Webb, Eithne M Costello, John P Neoptolemos, Jonathan Moggs, Chris E Goldring, B Kevin Park
Affiliations
Controlled Clinical Trial

Circulating microRNAs as potential markers of human drug-induced liver injury

Philip J Starkey Lewis et al. Hepatology. 2011 Nov.

Abstract

New biomarkers of liver injury are required in the clinic and in preclinical pharmaceutical evaluation. Previous studies demonstrate that two liver-enriched microRNAs (miR-122 and miR-192) are promising biomarkers of acetaminophen-induced acute liver injury (APAP-ALI) in mice. We have examined these molecules, for the first time, in humans with APAP poisoning. Serum miR-122 and miR-192 were substantially higher in APAP-ALI patients, compared to healthy controls (median ΔΔCt [25th, 75th percentile]) (miR-122: 1,265 [491, 4,270] versus 12.1 [7.0, 26.9], P < 0.0001; miR-192: 6.9 [2.0, 29.2] versus 0.44 [0.30, 0.69], P < 0.0001). A heart-enriched miR-1 showed no difference between APAP-ALI patients and controls, whereas miR-218 (brain-enriched) was slightly higher in the APAP-ALI cohort (0.17 [0.07, 0.50] versus 0.07 [0.04, 0.12]; P = 0.01). In chronic kidney disease (CKD) patients, miR-122 and -192 were modestly higher, compared to controls (miR-122: 32.0 [21.1, 40.9] versus 12.1 [7.0, 26.9], P = 0.006; miR-192: 1.2 [0.74, 1.9] versus 0.44 [0.30, 0.69], P = 0.005), but miR-122 and -192 were substantially higher in APAP-ALI patients than CKD patients (miR-122: P < 0.0001; miR-192: P < 0.0004). miR-122 correlated with peak ALT levels in the APAP-ALI cohort (Pearson R = 0.46, P = 0.0005), but not with prothrombin time. miR-122 was also raised alongside peak ALT levels in a group of patients with non-APAP ALI. Day 1 serum miR-122 levels were almost 2-fold higher in APAP-ALI patients who satisfied King's College Criteria (KCC), compared to those who did not satisfy KCC, although this did not reach statistical significance (P = 0.15).

Conclusion: This work provides the first evidence for the potential use of miRNAs as biomarkers of human drug-induced liver injury.

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