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Kochansky CJ, Lyman MJ, Fauty SE, Vlasakova K, D'mello AP. Administration of Fenofibrate Markedly Elevates Fabp3 in Rat Liver and Plasma and Confounds Its Use as a Preclinical Biomarker of Cardiac and Muscle Toxicity. Lipids 2018; 53:947-960. [PMID: 30592062 DOI: 10.1002/lipd.12110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 10/25/2018] [Accepted: 11/07/2018] [Indexed: 02/05/2023]
Abstract
Proteins involved in lipid homeostasis are often regulated through the nuclear peroxisome proliferator-activated receptors (PPAR). PPARα is the target for the fibrate-class of drugs. Fenofibrate has been approved for its lipid-lowering effects in patients with hypercholesterolemia and hypertriglyceridemia. We were interested in understanding the expression of the energy transporters in energy-utilizing tissues like liver, heart, muscle, and adipose tissues in rat with the hypothesis that the change in transporter expression would align with the known lipid-lowering effects of PPARα agonists like fenofibrate. We found that several fatty-acid transporter proteins had significantly altered levels following 8 days of fenofibrate dosing. The mRNA levels of the highly abundant Fatp2 and Fatp5 in rat liver increased approximately twofold and decreased fourfold, respectively. Several fatty-acid-binding proteins and acyl-CoA-binding proteins had a significant increase in mRNA abundance but not the major liver fatty-acid-binding protein, Fabp1. Of particular interest was the increased liver expression of Fabp3 also known as heart-fatty acid binding protein (H-FABP or FABP3). FABP3 has been proposed as a circulating clinical biomarker for cardiomyopathy and muscle toxicity, as well as a preclinical marker for PPARα-induced muscle toxicity. Here, we show that fenofibrate induces liver mRNA levels of Fabp3 ~5000-fold resulting in an approximately 50-fold increase in FABP3 protein levels in the whole liver. This increased liver expression complicates the interpretation and potential use of FABP3 as a specific biomarker for PPARα-induced muscle toxicities.
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Affiliation(s)
- Christopher J Kochansky
- Pharmacokinetics, Pharmacodynamics and Drug Metabolism, Merck & Co., Inc., 770 Sumneytown Pike, WP75A-203A, West Point, PA, 19486, USA.,Department of Pharmaceutical Sciences, University of the Sciences in Philadelphia, 600 South 43rd Street, Philadelphia, PA, 19104-4495, USA
| | - Michael J Lyman
- Pharmacokinetics, Pharmacodynamics and Drug Metabolism, Merck & Co., Inc., 770 Sumneytown Pike, WP75A-203A, West Point, PA, 19486, USA
| | - Scott E Fauty
- Safety Assessment, Merck & Co., Inc., 770 Sumneytown Pike, WP81-217, West Point, PA, 19486, USA
| | - Katerina Vlasakova
- Safety Assessment, Merck & Co., Inc., 770 Sumneytown Pike, WP81-217, West Point, PA, 19486, USA
| | - Anil P D'mello
- Department of Pharmaceutical Sciences, University of the Sciences in Philadelphia, 600 South 43rd Street, Philadelphia, PA, 19104-4495, USA
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Chu X, Shih SJ, Shaw R, Hentze H, Chan GH, Owens K, Wang S, Cai X, Newton D, Castro-Perez J, Salituro G, Palamanda J, Fernandis A, Ng CK, Liaw A, Savage MJ, Evers R. Evaluation of cynomolgus monkeys for the identification of endogenous biomarkers for hepatic transporter inhibition and as a translatable model to predict pharmacokinetic interactions with statins in humans. Drug Metab Dispos 2015; 43:851-63. [PMID: 25813937 DOI: 10.1124/dmd.115.063347] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 03/26/2015] [Indexed: 12/31/2022] Open
Abstract
Inhibition of hepatic transporters such as organic anion transporting polypeptides (OATPs) 1B can cause drug-drug interactions (DDIs). Determining the impact of perpetrator drugs on the plasma exposure of endogenous substrates for OATP1B could be valuable to assess the risk for DDIs early in drug development. As OATP1B orthologs are well conserved between human and monkey, we assessed in cynomolgus monkeys the endogenous OATP1B substrates that are potentially suitable to assess DDI risk in humans. The effect of rifampin (RIF), a potent inhibitor for OATP1B, on plasma exposure of endogenous substrates of hepatic transporters was measured. From the 18 biomarkers tested, RIF (18 mg/kg, oral) caused significant elevation of plasma unconjugated and conjugated bilirubin, which may be attributed to inhibition of cOATP1B1 and cOATP1B3 based on in vitro to in vivo extrapolation analysis. To further evaluate whether cynomolgus monkeys are a suitable translational model to study OATP1B-mediated DDIs, we determined the inhibitory effect of RIF on in vitro transport and pharmacokinetics of rosuvastatin (RSV) and atorvastatin (ATV). RIF strongly inhibited the uptake of RSV and ATV by cOATP1B1 and cOATP1B3 in vitro. In agreement with clinical observations, RIF (18 mg/kg, oral) significantly decreased plasma clearance and increased the area under the plasma concentration curve (AUC) of intravenously administered RSV by 2.8- and 2.7-fold, and increased the AUC and maximum plasma concentration of orally administered RSV by 6- and 10.3-fold, respectively. In contrast to clinical findings, RIF did not significantly increase plasma exposure of either intravenous or orally administered ATV, indicating species differences in the rate-limiting elimination pathways.
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Affiliation(s)
- Xiaoyan Chu
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Shian-Jiun Shih
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Rachel Shaw
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Hannes Hentze
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Grace H Chan
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Karen Owens
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Shubing Wang
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Xiaoxin Cai
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Deborah Newton
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Jose Castro-Perez
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Gino Salituro
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Jairam Palamanda
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Aaron Fernandis
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Choon Keow Ng
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Andy Liaw
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Mary J Savage
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
| | - Raymond Evers
- Merck Sharp & Dohme Corporation, Kenilworth, New Jersey (X.C., G.H.C., K.O., S.W., X.C., D.N., J.C.P., G.S., J.P., A.L., M.J.S., R.E.); Translational Medicine Research Centre, Singapore (S.J.S., R.S., H.H., A.F., C.K.N.)
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