Title : Tacrolimus pharmacogenetics: polymorphisms associated with expression of cytochrome p4503A5 and P-glycoprotein correlate with dose requirement.

Pub. Date : 2002 Dec 15

PMID : 12490779






3 Functional Relationships(s)
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1 METHODS: The dose-normalized blood concentrations of tacrolimus at 3 months after renal transplantation were related to CYP3AP1 and multiple drug resistance (MDR)-1 genotypes determined by polymerase chain reaction followed by restriction fragment length polymorphism analysis. Tacrolimus cytochrome P450 family 3 subfamily A member 51, pseudogene Homo sapiens
2 RESULTS: We found that a single nucleotide polymorphism in the CYP3AP1 pseudogene (A/G(44)) that previously has been noted to be more common in African Americans and strongly associated with hepatic CYP3A5 activity correlated well with the tacrolimus dose requirement. Tacrolimus cytochrome P450 family 3 subfamily A member 51, pseudogene Homo sapiens
3 CONCLUSIONS: The CYP3AP1 genotype is a major factor in determining the dose requirement for tacrolimus, and genotyping may be of value in planning patient-specific drug dosing. Tacrolimus cytochrome P450 family 3 subfamily A member 51, pseudogene Homo sapiens