1
|
Gaedigk A, Turner AJ, Moyer AM, Zubiaur P, Boone EC, Wang WY, Broeckel U, Kalman LV. Characterization of Reference Materials for DPYD: A GeT-RM Collaborative Project. J Mol Diagn 2024; 26:864-875. [PMID: 39032822 DOI: 10.1016/j.jmoldx.2024.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/24/2024] [Accepted: 06/28/2024] [Indexed: 07/23/2024] Open
Abstract
The DPYD gene encodes dihydropyrimidine dehydrogenase (DPD), which is involved in the catalysis of uracil and thymine, as well as 5-fluorouracil (5-FU), which is used to treat solid tumors. Patients with decreased DPD activity are at risk of serious, sometimes fatal, adverse drug reactions to this important cancer drug. Pharmacogenetic testing for DPYD is increasingly provided by clinical and research laboratories; however, only a limited number of quality control and reference materials are currently available for clinical DPYD testing. To address this need, the Division of Laboratory Systems, Centers for Disease Control and Prevention-based Genetic Testing Reference Materials Coordination Program, in collaboration with members of the pharmacogenetic testing and research communities and the Coriell Institute for Medical Research, has characterized 33 DNA samples derived from Coriell cell lines for DPYD. Samples were distributed to four volunteer laboratories for genetic testing using a variety of commercially available and laboratory-developed tests. Sanger sequencing was used by one laboratory and publicly available whole-genome sequence data from the 1000 Genomes Project were used by another to inform genotype. Thirty-three distinct DPYD variants were identified among the 33 samples characterized. 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.
Collapse
Affiliation(s)
- Andrea Gaedigk
- Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Research Institute, Kansas City, Missouri
| | - Amy J Turner
- RPRD Diagnostics, Milwaukee, Wisconsin; Section on Genomic Pediatrics, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Ann M Moyer
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Pablo Zubiaur
- Clinical Pharmacology Department, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid, Instituto de Investigación Sanitaria de La Princesa, Madrid, Spain
| | - Erin C Boone
- Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Research Institute, Kansas City, Missouri
| | - Wendy Y Wang
- Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Research Institute, Kansas City, Missouri
| | - Ulrich Broeckel
- RPRD Diagnostics, Milwaukee, Wisconsin; Section on Genomic Pediatrics, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Lisa V Kalman
- Division of Laboratory Systems, Centers for Disease Control and Prevention, Atlanta, Georgia.
| |
Collapse
|
2
|
Sterner RM, Hall PL, Matern D, Black JL, Moyer AM. Genotype and Phenotype Correlation of the TPMT∗8 Allele in Thiopurine Metabolism. J Mol Diagn 2024:S1525-1578(24)00183-1. [PMID: 39182670 DOI: 10.1016/j.jmoldx.2024.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/09/2024] [Accepted: 07/23/2024] [Indexed: 08/27/2024] Open
Abstract
Thiopurine 6-mercaptopurine (6-MP) is metabolized by thiopurine methyl transferase (TPMT). TPMT genetic variation results in some individuals having reduced or absent TPMT enzyme activity. If these individuals take a full thiopurine dose, life-threatening adverse events can occur. Testing identifies patients with reduced or absent TPMT activity and is recommended before initiation of therapy. The TPMT∗8 allele, defined by c.644G>A (p.Arg215His), is common among individuals of African ancestry (approximately 2.3% minor allele frequency) but is not included in genotyping recommendations due to its uncertain function. Here, a clinical TPMT enzyme activity assay was used to assess TPMT activity in red blood cells from 982 patients, including those with ∗1/∗8 (n = 22), ∗3A/∗8 (n = 1), and ∗3C/∗8 (n = 1) TPMT diplotypes. The average production of 6-methylmercaptopurine (primary TPMT product measured clinically) was 3.08 ± 0.16 nmol/mL per hour for ∗1/∗8 individuals, compared with 3.77 ± 0.03 nmol/mL per hour for normal metabolizers (P = 0.0001) and 2.39 ± 0.06 nmol 6-methylmercaptopurine/mL per hour for intermediate metabolizers (P < 0.0001). Individuals with a TPMT∗1/∗8 diplotype displayed reduced 6-MP metabolism between that of normal metabolizers and intermediate metabolizers, suggesting that TPMT∗8 is a reduced function allele.
Collapse
Affiliation(s)
- Rosalie M Sterner
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Patricia L Hall
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Dietrich Matern
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - John L Black
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Ann M Moyer
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota.
| |
Collapse
|
3
|
Halman A, Lunke S, Sadedin S, Moore C, Conyers R. Benchmarking pharmacogenomics genotyping tools: Performance analysis on short-read sequencing samples and depth-dependent evaluation. Clin Transl Sci 2024; 17:e13911. [PMID: 39123290 PMCID: PMC11315677 DOI: 10.1111/cts.13911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 07/04/2024] [Accepted: 07/12/2024] [Indexed: 08/12/2024] Open
Abstract
Pharmacogenomics (PGx) investigates the influence of genetics on drug responses, enabling tailored treatments for personalized healthcare. This study assessed the accuracy of genotyping six genes using whole genome sequencing with four different computational tools and various sequencing depths. The effects of using different reference genomes (GRCh38 and GRCh37) and sequence aligners (BWA-MEM and Bowtie2) were also explored. The results showed generally minor variations in tool performance across most genes; however, more notable discrepancies were observed in the analysis of the complex CYP2D6 gene. Cyrius, a CYP2D6-specific tool, demonstrated the most robust performance, achieving the highest concordance rates for CYP2D6 in all instances, comparable to the consensus approach in most cases. There were rather small differences between the samples with 20× coverage depth and those with higher depth, but the decreased performance was more evident at lower depths, particularly at 5×. Additionally, variations in CYP2D6 results were observed when samples were aligned to different reference genomes using the same method, or to the same genome using different aligners, which led to reporting incorrect rare star alleles in several cases. These findings inform the selection of optimal PGx tools and methodologies as well as suggest that employing a consensus approach with two or more tools might be preferable for certain genes and tool combinations, especially at lower sequencing depths, to ensure accurate results. Additionally, we show how the upstream alignment can affect the performance of tools, an important factor to take into account.
Collapse
Affiliation(s)
- Andreas Halman
- Cancer Therapies, Stem Cell MedicineMurdoch Children's Research InstituteParkvilleVictoriaAustralia
- Victorian Clinical Genetics ServicesMurdoch Children's Research InstituteMelbourneVictoriaAustralia
- School of Population and Global HealthThe University of MelbourneParkvilleVictoriaAustralia
| | - Sebastian Lunke
- Victorian Clinical Genetics ServicesMurdoch Children's Research InstituteMelbourneVictoriaAustralia
| | - Simon Sadedin
- Victorian Clinical Genetics ServicesMurdoch Children's Research InstituteMelbourneVictoriaAustralia
- Department of PaediatricsThe University of MelbourneParkvilleVictoriaAustralia
| | - Claire Moore
- Cancer Therapies, Stem Cell MedicineMurdoch Children's Research InstituteParkvilleVictoriaAustralia
- Department of PaediatricsThe University of MelbourneParkvilleVictoriaAustralia
| | - Rachel Conyers
- Cancer Therapies, Stem Cell MedicineMurdoch Children's Research InstituteParkvilleVictoriaAustralia
- Department of PaediatricsThe University of MelbourneParkvilleVictoriaAustralia
- The Novo Nordisk Foundation Centre for Stem Cell Medicine, ReNEW, Melbourne NodeParkvilleVictoriaAustralia
- Children's Cancer Centre, The Royal Children's HospitalParkvilleVictoriaAustralia
| |
Collapse
|
4
|
Haddad A, Radhakrishnan A, McGee S, Smith JD, Karnes JH, Venner E, Wheeler MM, Patterson K, Walker K, Kalra D, Kalla SE, Wang Q, Gibbs RA, Jarvik GP, Sanchez J, Musick A, Ramirez AH, Denny JC, Empey PE. Frequency of pharmacogenomic variation and medication exposures among All of Us Participants. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.06.12.24304664. [PMID: 38946996 PMCID: PMC11213053 DOI: 10.1101/2024.06.12.24304664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Pharmacogenomics promises improved outcomes through individualized prescribing. However, the lack of diversity in studies impedes clinical translation and equitable application of precision medicine. We evaluated the frequencies of PGx variants, predicted phenotypes, and medication exposures using whole genome sequencing and EHR data from nearly 100k diverse All of Us Research Program participants. We report 100% of participants carried at least one pharmacogenomics variant and nearly all (99.13%) had a predicted phenotype with prescribing recommendations. Clinical impact was high with over 20% having both an actionable phenotype and a prior exposure to an impacted medication with pharmacogenomic prescribing guidance. Importantly, we also report hundreds of alleles and predicted phenotypes that deviate from known frequencies and/or were previously unreported, including within admixed American and African ancestry groups.
Collapse
|
5
|
Gan P, Hajis MIB, Yumna M, Haruman J, Matoha HK, Wahyudi DT, Silalahi S, Oktariani DR, Dela F, Annisa T, Pitaloka TDA, Adhiwijaya PK, Pauzi RY, Hertanto R, Kumaheri MA, Sani L, Irwanto A, Pradipta A, Chomchopbun K, Gonzalez-Porta M. Development and validation of a pharmacogenomics reporting workflow based on the illumina global screening array chip. Front Pharmacol 2024; 15:1349203. [PMID: 38529185 PMCID: PMC10961362 DOI: 10.3389/fphar.2024.1349203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/05/2024] [Indexed: 03/27/2024] Open
Abstract
Background: Microarrays are a well-established and widely adopted technology capable of interrogating hundreds of thousands of loci across the human genome. Combined with imputation to cover common variants not included in the chip design, they offer a cost-effective solution for large-scale genetic studies. Beyond research applications, this technology can be applied for testing pharmacogenomics, nutrigenetics, and complex disease risk prediction. However, establishing clinical reporting workflows requires a thorough evaluation of the assay's performance, which is achieved through validation studies. In this study, we performed pre-clinical validation of a genetic testing workflow based on the Illumina Global Screening Array for 25 pharmacogenomic-related genes. Methods: To evaluate the accuracy of our workflow, we conducted multiple pre-clinical validation studies. Here, we present the results of accuracy and precision assessments, involving a total of 73 cell lines. These assessments encompass reference materials from the Genome-In-A-Bottle (GIAB), the Genetic Testing Reference Material Coordination Program (GeT-RM) projects, as well as additional samples from the 1000 Genomes project (1KGP). We conducted an accuracy assessment of genotype calls for target loci in each indication against established truth sets. Results: In our per-sample analysis, we observed a mean analytical sensitivity of 99.39% and specificity 99.98%. We further assessed the accuracy of star-allele calls by relying on established diplotypes in the GeT-RM catalogue or calls made based on 1KGP genotyping. On average, we detected a diplotype concordance rate of 96.47% across 14 pharmacogenomic-related genes with star allele-calls. Lastly, we evaluated the reproducibility of our findings across replicates and observed 99.48% diplotype and 100% phenotype inter-run concordance. Conclusion: Our comprehensive validation study demonstrates the robustness and reliability of the developed workflow, supporting its readiness for further development for applied testing.
Collapse
Affiliation(s)
- Pamela Gan
- Nalagenetics Pte Ltd., Singapore, Singapore
| | | | | | | | | | | | | | | | - Fitria Dela
- PT Genomik Solidaritas Indonesia, Jakarta, Indonesia
| | - Tazkia Annisa
- PT Genomik Solidaritas Indonesia, Jakarta, Indonesia
| | | | | | | | | | | | | | | | - Ariel Pradipta
- PT Genomik Solidaritas Indonesia, Jakarta, Indonesia
- Department Biochemistry and Molecular Biology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | | | | |
Collapse
|
6
|
Hijikata A, Suyama M, Kikugawa S, Matoba R, Naruto T, Enomoto Y, Kurosawa K, Harada N, Yanagi K, Kaname T, Miyako K, Takazawa M, Sasai H, Hosokawa J, Itoga S, Yamaguchi T, Kosho T, Matsubara K, Kuroki Y, Fukami M, Adachi K, Nanba E, Tsuchida N, Uchiyama Y, Matsumoto N, Nishimura K, Ohara O. Exome-wide benchmark of difficult-to-sequence regions using short-read next-generation DNA sequencing. Nucleic Acids Res 2024; 52:114-124. [PMID: 38015437 PMCID: PMC10783491 DOI: 10.1093/nar/gkad1140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 11/03/2023] [Accepted: 11/13/2023] [Indexed: 11/29/2023] Open
Abstract
Next-generation DNA sequencing (NGS) in short-read mode has recently been used for genetic testing in various clinical settings. NGS data accuracy is crucial in clinical settings, and several reports regarding quality control of NGS data, primarily focusing on establishing NGS sequence read accuracy, have been published thus far. Variant calling is another critical source of NGS errors that remains unexplored at the single-nucleotide level despite its established significance. In this study, we used a machine-learning-based method to establish an exome-wide benchmark of difficult-to-sequence regions at the nucleotide-residue resolution using 10 genome sequence features based on real-world NGS data accumulated in The Genome Aggregation Database (gnomAD) of the human reference genome sequence (GRCh38/hg38). The newly acquired metric, designated the 'UNMET score,' along with additional lines of structural information from the human genome, allowed us to assess the sequencing challenges within the exonic region of interest using conventional short-read NGS. Thus, the UNMET score could provide a basis for addressing potential sequential errors in protein-coding exons of the human reference genome sequence GRCh38/hg38 in clinical sequencing.
Collapse
Affiliation(s)
- Atsushi Hijikata
- Laboratory of Computational Genomics, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Mikita Suyama
- Division of Bioinformatics, Medical Institute of Bioregulation, Kyushu University, Higashi-ku, Fukuoka 812-8582, Japan
| | | | - Ryo Matoba
- DNA Chip Research Inc., Minato-ku, Tokyo 105-0022, Japan
| | - Takuya Naruto
- Clinical Research Institute, Kanagawa Children's Medical Center, Minami-ku, Yokohama, Kanagawa 232-0066, Japan
| | - Yumi Enomoto
- Clinical Research Institute, Kanagawa Children's Medical Center, Minami-ku, Yokohama, Kanagawa 232-0066, Japan
| | - Kenji Kurosawa
- Clinical Research Institute, Kanagawa Children's Medical Center, Minami-ku, Yokohama, Kanagawa 232-0066, Japan
- Division of Medical Genetics, Kanagawa Children's Medical Center, Minami-ku, Yokohama, Kanagawa 232-0066, Japan
| | - Naoki Harada
- Department of Fundamental Cell Technology, Center for iPS Cell Research and Application (CiRA), Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
| | - Kumiko Yanagi
- Department of Genome Medicine, National Center for Child Health and Development, Setagaya-ku, Tokyo 157-8535, Japan
| | - Tadashi Kaname
- Department of Genome Medicine, National Center for Child Health and Development, Setagaya-ku, Tokyo 157-8535, Japan
| | - Keisuke Miyako
- Department of Applied Genomics, Kazusa DNA Research Institute, Kisarazu, Chiba 292-0818, Japan
| | - Masaki Takazawa
- Department of Applied Genomics, Kazusa DNA Research Institute, Kisarazu, Chiba 292-0818, Japan
| | - Hideo Sasai
- Department of Applied Genomics, Kazusa DNA Research Institute, Kisarazu, Chiba 292-0818, Japan
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Gifu 501-1194, Japan
| | - Junichi Hosokawa
- Department of Applied Genomics, Kazusa DNA Research Institute, Kisarazu, Chiba 292-0818, Japan
| | - Sakae Itoga
- Department of Applied Genomics, Kazusa DNA Research Institute, Kisarazu, Chiba 292-0818, Japan
| | - Tomomi Yamaguchi
- Department of Medical Genetics, Shinshu University School of Medicine, Matsumoto, Nagano 390-8621, Japan
- Center for Medical Genetics, Shinshu University Hospital, Matsumoto, Nagano 390-8621, Japan
- Division of Clinical Sequencing, Shinshu University School of Medicine, Matsumoto, Nagano 390-8621, Japan
| | - Tomoki Kosho
- Department of Medical Genetics, Shinshu University School of Medicine, Matsumoto, Nagano 390-8621, Japan
- Center for Medical Genetics, Shinshu University Hospital, Matsumoto, Nagano 390-8621, Japan
- Division of Clinical Sequencing, Shinshu University School of Medicine, Matsumoto, Nagano 390-8621, Japan
| | - Keiko Matsubara
- Division of Collaborative Research, National Research Institute for Child Health and Development, Setagaya-ku, Tokyo 157-8535, Japan
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Setagaya-ku, Tokyo 157-8535, Japan
| | - Yoko Kuroki
- Department of Genome Medicine, National Center for Child Health and Development, Setagaya-ku, Tokyo 157-8535, Japan
- Division of Collaborative Research, National Research Institute for Child Health and Development, Setagaya-ku, Tokyo 157-8535, Japan
| | - Maki Fukami
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Setagaya-ku, Tokyo 157-8535, Japan
| | - Kaori Adachi
- Organization for Research Initiative and Promotion, Tottori University, Yonago, Tottori 680-8550, Japan
| | - Eiji Nanba
- Organization for Research Initiative and Promotion, Tottori University, Yonago, Tottori 680-8550, Japan
| | - Naomi Tsuchida
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Kanazawa-ku, Yokohama, Kanagawa 236-0027, Japan
- Department of Rare Disease Genomics, Yokohama City University Hospital, Yokohama, Kanagawa 236-0027, Japan
| | - Yuri Uchiyama
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Kanazawa-ku, Yokohama, Kanagawa 236-0027, Japan
- Department of Rare Disease Genomics, Yokohama City University Hospital, Yokohama, Kanagawa 236-0027, Japan
| | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Kanazawa-ku, Yokohama, Kanagawa 236-0027, Japan
| | | | - Osamu Ohara
- Department of Applied Genomics, Kazusa DNA Research Institute, Kisarazu, Chiba 292-0818, Japan
- Division of Clinical Sequencing, Shinshu University School of Medicine, Matsumoto, Nagano 390-8621, Japan
| |
Collapse
|
7
|
Scott SA. The Genetic Testing Reference Materials Coordination Program: Over 10 Years of Support for Pharmacogenomic Testing. J Mol Diagn 2023; 25:630-633. [PMID: 37481236 PMCID: PMC10488323 DOI: 10.1016/j.jmoldx.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/06/2023] [Accepted: 07/11/2023] [Indexed: 07/24/2023] Open
Affiliation(s)
- Stuart A Scott
- Department of Pathology, Stanford University, Stanford, California; Clinical Genomics Laboratory, Stanford Medicine, Palo Alto, California.
| |
Collapse
|
8
|
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 LV. Characterization of Reference Materials for CYP3A4 and CYP3A5: A (GeT-RM) Collaborative Project. J Mol Diagn 2023; 25:655-664. [PMID: 37354993 PMCID: PMC11284628 DOI: 10.1016/j.jmoldx.2023.06.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/23/2023] [Accepted: 06/01/2023] [Indexed: 06/26/2023] Open
Abstract
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.
Collapse
Affiliation(s)
- Andrea Gaedigk
- Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Research Institute, Kansas City, Missouri; University of Missouri-Kansas City School of Medicine, Kansas City, Missouri
| | - Erin C Boone
- Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Research Institute, Kansas City, Missouri
| | - Amy J Turner
- RPRD Diagnostics, Milwaukee, Wisconsin; Section on Genomic Pediatrics, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Ron H N van Schaik
- Department of Clinical Chemistry/International Federation of Clinical Chemistry and Laboratory Medicine Expert Center Pharmacogenetics, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Dilyara Chernova
- Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Research Institute, Kansas City, Missouri
| | - Wendy Y Wang
- Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Research Institute, Kansas City, Missouri
| | - Ulrich Broeckel
- RPRD Diagnostics, Milwaukee, Wisconsin; Section on Genomic Pediatrics, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Caitlin A Granfield
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Jennelle C Hodge
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Reynold C Ly
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Ty C Lynnes
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana
| | | | - Ann M Moyer
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | | | - Lisa V Kalman
- Division of Laboratory Systems, Centers for Disease Control and Prevention, Atlanta, Georgia.
| |
Collapse
|
9
|
Chikondowa P, Munkombwe D, Chikwambi Z, Kuona P, Masimirembwa C. Pharmacogenetics of 6-mercaptopurine in a black Zimbabwean cohort treated for acute lymphoblastic leukaemia. Pharmacogenomics 2023; 24:449-457. [PMID: 37248698 PMCID: PMC10463210 DOI: 10.2217/pgs-2023-0026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 05/16/2023] [Indexed: 05/31/2023] Open
Abstract
Background: 6-mercaptopurine usage is associated with myelotoxicity and increased risk in patients carrying metabolism-related genetic variations. This study aimed to determine the frequency of candidate gene polymorphisms and their association with 6-mercaptopurine intolerance. Methods: A total of 41 patients on acute lymphoblastic leukaemia treatment were genotyped for TPMT and NUDT15 (rs116855232) alleles, and their association with dose intensity was analyzed. Results: The defective TPMT*3C allele frequency was 9.8%. The median maintenance dose intensity for TPMT*1/*3C participants was considerably lower (47%) when compared with the TPMT*1/*1 wild-type (77%), although not statistically significant. Conclusion: This is the first pharmacogenetics study carried out in a black Zimbabwean leukemia patient cohort. The high defective TPMT*3C (9.8%) allele frequency points to the potential utility of pharmacogenetics testing for safe usage of 6-mercaptopurine in this population.
Collapse
Affiliation(s)
- Pageneck Chikondowa
- Department of Genomic Medicine, African Institute of Biomedical Science & Technology (AiBST), Harare, Zimbabwe
- Department of Biotechnology, School of Health Science & Technology, Chinhoyi University of Technology, Chinhoyi, Zimbabwe
| | - Derick Munkombwe
- Department of Genomic Medicine, African Institute of Biomedical Science & Technology (AiBST), Harare, Zimbabwe
- Department of Pharmacy, School of Health Sciences, University of Zambia, Lusaka, 10101, Zambia
| | - Zedias Chikwambi
- Department of Genomic Medicine, African Institute of Biomedical Science & Technology (AiBST), Harare, Zimbabwe
- Department of Biotechnology, School of Health Science & Technology, Chinhoyi University of Technology, Chinhoyi, Zimbabwe
| | - Patience Kuona
- Department of Paediatrics, Faculty of Medicine & Health Sciences, University of Zimbabwe, Harare, Zimbabwe
| | - Collen Masimirembwa
- Department of Genomic Medicine, African Institute of Biomedical Science & Technology (AiBST), Harare, Zimbabwe
| |
Collapse
|
10
|
Liu Y, Lin Z, Chen Q, Chen Q, Sang L, Wang Y, Shi L, Guo L, Yu Y. PAnno: A pharmacogenomics annotation tool for clinical genomic testing. Front Pharmacol 2023; 14:1008330. [PMID: 36778023 PMCID: PMC9909284 DOI: 10.3389/fphar.2023.1008330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 01/16/2023] [Indexed: 01/27/2023] Open
Abstract
Introduction: Next-generation sequencing (NGS) technologies have been widely used in clinical genomic testing for drug response phenotypes. However, the inherent limitations of short reads make accurate inference of diplotypes still challenging, which may reduce the effectiveness of genotype-guided drug therapy. Methods: An automated Pharmacogenomics Annotation tool (PAnno) was implemented, which reports prescribing recommendations and phenotypes by parsing the germline variant call format (VCF) file from NGS and the population to which the individual belongs. Results: A ranking model dedicated to inferring diplotypes, developed based on the allele (haplotype) definition and population allele frequency, was introduced in PAnno. The predictive performance was validated in comparison with four similar tools using the consensus diplotype data of the Genetic Testing Reference Materials Coordination Program (GeT-RM) as ground truth. An annotation method was proposed to summarize prescribing recommendations and classify drugs into avoid use, use with caution, and routine use, following the recommendations of the Clinical Pharmacogenetics Implementation Consortium (CPIC), etc. It further predicts phenotypes of specific drugs in terms of toxicity, dosage, efficacy, and metabolism by integrating the high-confidence clinical annotations in the Pharmacogenomics Knowledgebase (PharmGKB). PAnno is available at https://github.com/PreMedKB/PAnno. Discussion: PAnno provides an end-to-end clinical pharmacogenomics decision support solution by resolving, annotating, and reporting germline variants.
Collapse
Affiliation(s)
- Yaqing Liu
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Sciences and Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Zipeng Lin
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Sciences and Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Qingwang Chen
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Sciences and Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Qiaochu Chen
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Sciences and Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Leqing Sang
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Sciences and Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Yunjin Wang
- Department of Breast Surgery, Precision Cancer Medicine Center, Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Shanghai, China,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Leming Shi
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Sciences and Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Li Guo
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China,School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, China,*Correspondence: Li Guo, ; Ying Yu,
| | - Ying Yu
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Sciences and Shanghai Cancer Center, Fudan University, Shanghai, China,*Correspondence: Li Guo, ; Ying Yu,
| |
Collapse
|
11
|
Pratt VM, Cavallari LH, Fulmer ML, Gaedigk A, Hachad H, Ji Y, Kalman LV, Ly RC, Moyer AM, Scott SA, van Schaik RHN, Whirl-Carrillo M, Weck KE. TPMT and NUDT15 Genotyping Recommendations: A Joint Consensus Recommendation of the Association for Molecular Pathology, Clinical Pharmacogenetics Implementation Consortium, College of American Pathologists, Dutch Pharmacogenetics Working Group of the Royal Dutch Pharmacists Association, European Society for Pharmacogenomics and Personalized Therapy, and Pharmacogenomics Knowledgebase. J Mol Diagn 2022; 24:1051-1063. [PMID: 35931343 PMCID: PMC9808500 DOI: 10.1016/j.jmoldx.2022.06.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/04/2022] [Accepted: 06/14/2022] [Indexed: 02/06/2023] Open
Abstract
The goals of the Association for Molecular Pathology Clinical Practice Committee's Pharmacogenomics (PGx) Working Group are to define the key attributes of pharmacogenetic alleles recommended for clinical testing and a minimum set of variants that should be included in clinical PGx genotyping assays. This article provides recommendations for a minimum panel of variant alleles (Tier 1) and an extended panel of variant alleles (Tier 2) that will aid clinical laboratories when designing assays for PGx testing. The Association for Molecular Pathology PGx Working Group considered the functional impact of the variant alleles, allele frequencies in multiethnic populations, the availability of reference materials, as well as other technical considerations for PGx testing when developing these recommendations. The ultimate goal of this Working Group is to promote standardization of PGx gene/allele testing across clinical laboratories. This article focuses on clinical TPMT and NUDT15 PGx testing, which may be applied to all thiopurine S-methyltransferase (TPMT) and nudix hydrolase 15 (NUDT15)-related medications. These recommendations are not to be interpreted as prescriptive, but to provide a reference guide.
Collapse
Affiliation(s)
- Victoria M Pratt
- The Pharmacogenomics (PGx) Working Group of the Clinical Practice Committee, Association for Molecular Pathology (AMP), Rockville, Maryland; Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana.
| | - Larisa H Cavallari
- The Pharmacogenomics (PGx) Working Group of the Clinical Practice Committee, Association for Molecular Pathology (AMP), Rockville, Maryland; Center for Pharmacogenomics and Precision Medicine, Department of Pharmacotherapy and Translational Research, University of Florida, Gainesville, Florida
| | - Makenzie L Fulmer
- The Pharmacogenomics (PGx) Working Group of the Clinical Practice Committee, Association for Molecular Pathology (AMP), Rockville, Maryland; Department of Pathology and ARUP Laboratories, University of Utah School of Medicine, Salt Lake City, Utah
| | - Andrea Gaedigk
- The Pharmacogenomics (PGx) Working Group of the Clinical Practice Committee, Association for Molecular Pathology (AMP), Rockville, Maryland; Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Kansas City, School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri
| | - Houda Hachad
- The Pharmacogenomics (PGx) Working Group of the Clinical Practice Committee, Association for Molecular Pathology (AMP), Rockville, Maryland; Department of Clinical Operations, AccessDx, Houston, Texas
| | - Yuan Ji
- The Pharmacogenomics (PGx) Working Group of the Clinical Practice Committee, Association for Molecular Pathology (AMP), Rockville, Maryland; Department of Pathology and ARUP Laboratories, University of Utah School of Medicine, Salt Lake City, Utah
| | - Lisa V Kalman
- The Pharmacogenomics (PGx) Working Group of the Clinical Practice Committee, Association for Molecular Pathology (AMP), Rockville, Maryland; Division of Laboratory Systems, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Reynold C Ly
- The Pharmacogenomics (PGx) Working Group of the Clinical Practice Committee, Association for Molecular Pathology (AMP), Rockville, Maryland; Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Ann M Moyer
- The Pharmacogenomics (PGx) Working Group of the Clinical Practice Committee, Association for Molecular Pathology (AMP), Rockville, Maryland; Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Stuart A Scott
- The Pharmacogenomics (PGx) Working Group of the Clinical Practice Committee, Association for Molecular Pathology (AMP), Rockville, Maryland; Department of Pathology, Stanford University, Stanford, California; Clinical Genomics Laboratory, Stanford Health Care, Palo Alto, California
| | - R H N van Schaik
- The Pharmacogenomics (PGx) Working Group of the Clinical Practice Committee, Association for Molecular Pathology (AMP), Rockville, Maryland; Department of Clinical Chemistry/International Federation of Clinical Chemistry and Laboratory Medicine Expert Center Pharmacogenetics, Erasmus MC University Medical Center, Rotterdam, the Netherlands; European Society of Pharmacogenomics and Personalized Therapy (ESPT), Milan, Italy; Dutch Pharmacogenetics Working Group (DPWG), The Hague, the Netherlands
| | - Michelle Whirl-Carrillo
- The Pharmacogenomics (PGx) Working Group of the Clinical Practice Committee, Association for Molecular Pathology (AMP), Rockville, Maryland; Department of Biomedical Data Science, Stanford University, Stanford, California
| | - Karen E Weck
- The Pharmacogenomics (PGx) Working Group of the Clinical Practice Committee, Association for Molecular Pathology (AMP), Rockville, Maryland; Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina; Department of Genetics, University of North Carolina, Chapel Hill, North Carolina
| |
Collapse
|