Title : Carboxylesterase 1 as a determinant of clopidogrel metabolism and activation.

Pub. Date : 2013 Mar

PMID : 23275066






15 Functional Relationships(s)
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1 Carboxylesterase 1 as a determinant of clopidogrel metabolism and activation. Clopidogrel carboxylesterase 1 Homo sapiens
2 Clopidogrel, a recognized substrate of hepatic carboxylesterase 1 (CES1), undergoes extensive hydrolytic metabolism in the liver. Clopidogrel carboxylesterase 1 Homo sapiens
3 Clopidogrel, a recognized substrate of hepatic carboxylesterase 1 (CES1), undergoes extensive hydrolytic metabolism in the liver. Clopidogrel carboxylesterase 1 Homo sapiens
4 We determined whether CES1 inhibition and CES1 genetic polymorphisms would significantly influence the biotransformation of clopidogrel and alter the formation of the active metabolite. Clopidogrel carboxylesterase 1 Homo sapiens
5 We determined whether CES1 inhibition and CES1 genetic polymorphisms would significantly influence the biotransformation of clopidogrel and alter the formation of the active metabolite. Clopidogrel carboxylesterase 1 Homo sapiens
6 Coincubation of clopidogrel with the CES1 inhibitor bis(4-nitrophenyl) phosphate in human liver s9 fractions significantly increased the concentrations of clopidogrel, 2-oxo-clopidogrel, and clopidogrel active metabolite, while the concentrations of all formed carboxylate metabolites were significantly decreased. Clopidogrel carboxylesterase 1 Homo sapiens
7 Coincubation of clopidogrel with the CES1 inhibitor bis(4-nitrophenyl) phosphate in human liver s9 fractions significantly increased the concentrations of clopidogrel, 2-oxo-clopidogrel, and clopidogrel active metabolite, while the concentrations of all formed carboxylate metabolites were significantly decreased. Clopidogrel carboxylesterase 1 Homo sapiens
8 Coincubation of clopidogrel with the CES1 inhibitor bis(4-nitrophenyl) phosphate in human liver s9 fractions significantly increased the concentrations of clopidogrel, 2-oxo-clopidogrel, and clopidogrel active metabolite, while the concentrations of all formed carboxylate metabolites were significantly decreased. Clopidogrel carboxylesterase 1 Homo sapiens
9 As anticipated, clopidogrel and 2-oxo-clopidogrel were efficiently hydrolyzed by the cell s9 fractions prepared from wild-type CES1 transfected cells. Clopidogrel carboxylesterase 1 Homo sapiens
10 The enzymatic activity of the CES1 variants G143E and D260fs were completely impaired in terms of catalyzing the hydrolysis of clopidogrel and 2-oxo-clopidogrel. Clopidogrel carboxylesterase 1 Homo sapiens
11 In summary, deficient CES1 catalytic activity resulting from CES1 inhibition or CES1 genetic variation may be associated with higher plasma concentrations of clopidogrel-active metabolite, and hence may enhance antiplatelet activity. Clopidogrel carboxylesterase 1 Homo sapiens
12 In summary, deficient CES1 catalytic activity resulting from CES1 inhibition or CES1 genetic variation may be associated with higher plasma concentrations of clopidogrel-active metabolite, and hence may enhance antiplatelet activity. Clopidogrel carboxylesterase 1 Homo sapiens
13 In summary, deficient CES1 catalytic activity resulting from CES1 inhibition or CES1 genetic variation may be associated with higher plasma concentrations of clopidogrel-active metabolite, and hence may enhance antiplatelet activity. Clopidogrel carboxylesterase 1 Homo sapiens
14 Additionally, CES1 genetic variants have the potential to serve as a biomarker to predict clopidogrel response and individualize clopidogrel dosing regimens in clinical practice. Clopidogrel carboxylesterase 1 Homo sapiens
15 Additionally, CES1 genetic variants have the potential to serve as a biomarker to predict clopidogrel response and individualize clopidogrel dosing regimens in clinical practice. Clopidogrel carboxylesterase 1 Homo sapiens