Characterization of Reference Materials for TPMT and NUDT15: A GeT-RM Collaborative Project.

Creator(s)

Victoria M. Pratt
Wendy Y. Wang, Children's Mercy HospitalFollow
Erin C. Boone, Children's Mercy HospitalFollow
Ulrich Broeckel
Neal Cody
Lisa Edelmann
Andrea Gaedigk, Children's Mercy Kansas CityFollow
Ty C. Lynnes
Elizabeth B. Medeiros
Ann M. Moyer
Matthew W. Mitchell
Stuart A. Scott
Petr Starostik
Amy Turner
Lisa V. Kalman

Document Type

Article

Publication Date

10-2022

Identifier

DOI: 10.1016/j.jmoldx.2022.06.008

Abstract

Pharmacogenetic testing 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 TPMT and NUDT15 variants included in clinical tests. To address this need, the Division of Laboratory Systems, Centers for Disease Control and Prevention-based Genetic Testing Reference Material (GeT-RM) coordination program, in collaboration with members of the pharmacogenetic testing and research communities and the Coriell Institute for Medical Research, has characterized 19 DNA samples derived from Coriell cell lines. DNA samples were distributed to four volunteer testing laboratories for genotyping using a variety of commercially available and laboratory developed tests and/or Sanger sequencing. Of the 12 samples characterized for TPMT, newly identified variants include TPMT∗2, ∗6, ∗12, ∗16, ∗21, ∗24, ∗32, ∗33, and ∗40; for the 7 NUDT15 reference material samples, newly identified variants are NUDT15∗2, ∗3, ∗4, ∗5, ∗6, and ∗9. In addition, a novel haplotype, TPMT∗46, was identified in this study. Preexisting data on an additional 11 Coriell samples, as well as some supplemental testing, were used to create comprehensive reference material panels for TPMT and NUDT15. 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.

Journal Title

The Journal of molecular diagnostics : JMD

Volume

24

Issue

10

First Page

1079

Last Page

1088

MeSH Keywords

Alleles; DNA; Genetic Testing; Haplotypes; Humans; Methyltransferases; Pharmacogenetics; Pyrophosphatases

Keywords

Alleles; DNA; Genetic Testing; Haplotypes; Humans; Methyltransferases; Pharmacogenetics; Pyrophosphatases

Recommended Citation

Pratt VM, Wang WY, Boone EC, et al. Characterization of Reference Materials for TPMT and NUDT15: A GeT-RM Collaborative Project. J Mol Diagn. 2022;24(10):1079-1088. doi:10.1016/j.jmoldx.2022.06.008