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Young CL, Beichman AC, Mas-Ponte D, Hemker SL, Zhu L, Kitzman JO, Shirts B, Harris K. A maternal germline mutator phenotype in a family affected by heritable colorectal cancer. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.12.08.23299304. [PMID: 38196581 PMCID: PMC10775336 DOI: 10.1101/2023.12.08.23299304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Variation in DNA repair genes can increase cancer risk by elevating the rate of oncogenic mutation. Defects in one such gene, MUTYH, are known to elevate the incidence of colorectal cancer in a recessive Mendelian manner, and some evidence has also linked MUTYH to elevated incidence of other cancers as well as elevated mutation rates in normal somatic and germline cells. Here, we use whole genome sequencing to measure germline de novo mutation rates in a large extended family affected by pathogenic MUTYH variation and a history of colorectal cancer. Although this family's genotype, p.Y179C/V234M (c.536A>G/700G>A on transcript NM_001128425), contains a variant with conflicting functional interpretations, we use an in vitro cell line assay to determine that it partially attenuates MUTYH's function. In the children of mothers affected by the Y179C/V234M genotype, we identify an elevation of the C>A mutation rate that is weaker than mutator effects previously reported to be caused by other pathogenic MUTYH genotypes, suggesting that mutation rates in normal tissues may be useful for classifying cancer-associated variation along a continuum of severity. Surprisingly, we detect no significant elevation of the C>A mutation rate in children born to a father with the same biallelic MUTYH genotype, despite calculating that we should have adequate power to detect such a mutator effect. This suggests that the oxidative stress repaired by MUTYH may contribute more to female reproductive aging than male reproductive aging in the general population.
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Affiliation(s)
- Candice L. Young
- Department of Genome Sciences, University of Washington
- Department of Molecular and Cellular Biology, University of Washington
| | | | | | | | - Luke Zhu
- Department of Bioengineering, University of Washington
| | | | - Brian Shirts
- Department of Laboratory Medicine and Pathology, University of Washington
| | - Kelley Harris
- Department of Genome Sciences, University of Washington
- Computational Biology Division, Fred Hutchinson Cancer Center
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Kratz CP, Smirnov D, Autry R, Jäger N, Waszak SM, Großhennig A, Berutti R, Wendorff M, Hainaut P, Pfister SM, Prokisch H, Ripperger T, Malkin D. Reply to Li and Colleagues. J Natl Cancer Inst 2023; 115:760-761. [PMID: 37004196 PMCID: PMC10248829 DOI: 10.1093/jnci/djad057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 03/19/2023] [Indexed: 04/03/2023] Open
Affiliation(s)
- Christian P Kratz
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany
| | - Dmitrii Smirnov
- Institute of Human Genetics, School of Medicine, Technische Universität München, München, Germany
- Institute of Neurogenomics, Computational Health Center, Helmholtz Zentrum München, Neuherberg, Germany
| | - Robert Autry
- Hopp Children's Cancer Center (KiTZ), Heidelberg, Germany
- Division of Paediatric Neurooncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Natalie Jäger
- Hopp Children's Cancer Center (KiTZ), Heidelberg, Germany
- Division of Paediatric Neurooncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Sebastian M Waszak
- Centre for Molecular Medicine Norway (NCMM), Nordic European Molecular Biology Laboratory (EMBL) Partnership, University of Oslo and Oslo University Hospital, Oslo, Norway
- Department of Neurology, University of California, San Francisco, San Francisco, CA, USA
| | - Anika Großhennig
- Institute of Biostatistics, Hannover Medical School, Hannover, Germany
| | - Riccardo Berutti
- Institute of Human Genetics, School of Medicine, Technische Universität München, München, Germany
- Institute of Neurogenomics, Computational Health Center, Helmholtz Zentrum München, Neuherberg, Germany
| | - Mareike Wendorff
- Institute of Clinical Molecular Biology, Christian-Albrechts-University, Kiel, Germany
| | - Pierre Hainaut
- Institute for Advanced Biosciences, Inserm 1209 CNRS 5309 UGA, Grenoble, France
| | - Stefan M Pfister
- Hopp Children's Cancer Center (KiTZ), Heidelberg, Germany
- Division of Paediatric Neurooncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
- Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Holger Prokisch
- Institute of Human Genetics, School of Medicine, Technische Universität München, München, Germany
- Institute of Neurogenomics, Computational Health Center, Helmholtz Zentrum München, Neuherberg, Germany
| | - Tim Ripperger
- Department of Human Genetics, Hannover Medical School, Hannover, Germany
| | - David Malkin
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, ON, Canada
- Division of Hematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Paediatrics, University of Toronto, Toronto, ON, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
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