Characterization of Reference Materials for CYP3A4 and CYP3A5: A (GeT-RM) Collaborative Project. J Mol Diagn 2023 Sep;25(9):655-664
Date
06/25/2023Pubmed ID
37354993Pubmed Central ID
PMC11284628DOI
10.1016/j.jmoldx.2023.06.005Scopus ID
2-s2.0-85168428012 (requires institutional sign-in at Scopus site) 11 CitationsAbstract
Pharmacogenetic testing for CYP3A4 is increasingly provided by clinical and research laboratories; however, only a limited number of quality control and reference materials are currently available for many of the CYP3A4 variants included in clinical tests. To address this need, the Division of Laboratory Systems, CDC-based Genetic Testing Reference Material Coordination Program (GeT-RM), in collaboration with members of the pharmacogenetic testing and research communities and the Coriell Institute for Medical Research, has characterized 30 DNA samples derived from Coriell cell lines for CYP3A4. Samples were distributed to five volunteer laboratories for genotyping using a variety of commercially available and laboratory-developed tests. Sanger and next-generation sequencing were also utilized by some of the laboratories. Whole-genome sequencing data from the 1000 Genomes Projects were utilized to inform genotype. Twenty CYP3A4 alleles were identified in the 30 samples characterized for CYP3A4: CYP3A4∗4, ∗5, ∗6, ∗7, ∗8, ∗9, ∗10, ∗11, ∗12, ∗15, ∗16, ∗18, ∗19, ∗20, ∗21, ∗22, ∗23, ∗24, ∗35, and a novel allele, CYP3A4∗38. Nineteen additional samples with preexisting data for CYP3A4 or CYP3A5 were re-analyzed to generate comprehensive reference material panels for these genes. These publicly available and well-characterized materials can be used to support the quality assurance and quality control programs of clinical laboratories performing clinical pharmacogenetic testing.
Author List
Gaedigk A, Boone EC, Turner AJ, van Schaik RHN, Chernova D, Wang WY, Broeckel U, Granfield CA, Hodge JC, Ly RC, Lynnes TC, Mitchell MW, Moyer AM, Oliva J, Kalman LVAuthors
Ulrich Broeckel MD Chief, Center Associate Director, Professor in the Pediatrics department at Medical College of WisconsinAmy Turner Research Scientist I in the Pediatrics department at Medical College of Wisconsin
MESH terms used to index this publication - Major topics in bold
AllelesCytochrome P-450 CYP3A
DNA
Genetic Testing
Genotype
Humans
