A tumor focused approach to resolving the etiology of DNA mismatch repair deficient tumors classified as suspected Lynch syndrome.


Journal

Journal of translational medicine
ISSN: 1479-5876
Titre abrégé: J Transl Med
Pays: England
ID NLM: 101190741

Informations de publication

Date de publication:
26 04 2023
Historique:
received: 09 02 2023
accepted: 19 04 2023
medline: 28 4 2023
pubmed: 27 4 2023
entrez: 26 4 2023
Statut: epublish

Résumé

Routine screening of tumors for DNA mismatch repair (MMR) deficiency (dMMR) in colorectal (CRC), endometrial (EC) and sebaceous skin (SST) tumors leads to a significant proportion of unresolved cases classified as suspected Lynch syndrome (SLS). SLS cases (n = 135) were recruited from Family Cancer Clinics across Australia and New Zealand. Targeted panel sequencing was performed on tumor (n = 137; 80×CRCs, 33×ECs and 24xSSTs) and matched blood-derived DNA to assess for microsatellite instability status, tumor mutation burden, COSMIC tumor mutational signatures and to identify germline and somatic MMR gene variants. MMR immunohistochemistry (IHC) and MLH1 promoter methylation were repeated. In total, 86.9% of the 137 SLS tumors could be resolved into established subtypes. For 22.6% of these resolved SLS cases, primary MLH1 epimutations (2.2%) as well as previously undetected germline MMR pathogenic variants (1.5%), tumor MLH1 methylation (13.1%) or false positive dMMR IHC (5.8%) results were identified. Double somatic MMR gene mutations were the major cause of dMMR identified across each tumor type (73.9% of resolved cases, 64.2% overall, 70% of CRC, 45.5% of ECs and 70.8% of SSTs). The unresolved SLS tumors (13.1%) comprised tumors with only a single somatic (7.3%) or no somatic (5.8%) MMR gene mutations. A tumor-focused testing approach reclassified 86.9% of SLS into Lynch syndrome, sporadic dMMR or MMR-proficient cases. These findings support the incorporation of tumor sequencing and alternate MLH1 methylation assays into clinical diagnostics to reduce the number of SLS patients and provide more appropriate surveillance and screening recommendations.

Identifiants

pubmed: 37101184
doi: 10.1186/s12967-023-04143-1
pii: 10.1186/s12967-023-04143-1
pmc: PMC10134620
doi:

Substances chimiques

MutL Protein Homolog 1 EC 3.6.1.3

Types de publication

Journal Article Research Support, Non-U.S. Gov't Research Support, N.I.H., Extramural

Langues

eng

Sous-ensembles de citation

IM

Pagination

282

Subventions

Organisme : NCI NIH HHS
ID : U24 CA074800
Pays : United States
Organisme : NCI NIH HHS
ID : U24 CA074794
Pays : United States
Organisme : NCI NIH HHS
ID : U01 CA097735
Pays : United States
Organisme : NCI NIH HHS
ID : U01 CA074799
Pays : United States
Organisme : NCI NIH HHS
ID : U01 CA167551
Pays : United States
Organisme : NCI NIH HHS
ID : U01 CA074800
Pays : United States
Organisme : NCI NIH HHS
ID : U01 CA074783
Pays : United States
Organisme : NCI NIH HHS
ID : U24 CA074783
Pays : United States
Organisme : NCI NIH HHS
ID : U24 CA074806
Pays : United States
Organisme : NCI NIH HHS
ID : U01 CA074794
Pays : United States
Organisme : NCI NIH HHS
ID : U01 CA074806
Pays : United States
Organisme : NCI NIH HHS
ID : U24 CA097735
Pays : United States
Organisme : NCI NIH HHS
ID : U24 CA074799
Pays : United States

Commentaires et corrections

Type : UpdateOf

Informations de copyright

© 2023. The Author(s).

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Auteurs

Romy Walker (R)

Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, 305 Grattan Street, Parkville, VIC, 3010, Australia.
Victorian Comprehensive Cancer Centre, University of Melbourne Centre for Cancer Research, Parkville, VIC, 3010, Australia.

Khalid Mahmood (K)

Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, 305 Grattan Street, Parkville, VIC, 3010, Australia.
Victorian Comprehensive Cancer Centre, University of Melbourne Centre for Cancer Research, Parkville, VIC, 3010, Australia.
Melbourne Bioinformatics, The University of Melbourne, Melbourne, VIC, 3051, Australia.

Jihoon E Joo (JE)

Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, 305 Grattan Street, Parkville, VIC, 3010, Australia.
Victorian Comprehensive Cancer Centre, University of Melbourne Centre for Cancer Research, Parkville, VIC, 3010, Australia.

Mark Clendenning (M)

Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, 305 Grattan Street, Parkville, VIC, 3010, Australia.
Victorian Comprehensive Cancer Centre, University of Melbourne Centre for Cancer Research, Parkville, VIC, 3010, Australia.

Peter Georgeson (P)

Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, 305 Grattan Street, Parkville, VIC, 3010, Australia.
Victorian Comprehensive Cancer Centre, University of Melbourne Centre for Cancer Research, Parkville, VIC, 3010, Australia.

Julia Como (J)

Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, 305 Grattan Street, Parkville, VIC, 3010, Australia.
Victorian Comprehensive Cancer Centre, University of Melbourne Centre for Cancer Research, Parkville, VIC, 3010, Australia.

Sharelle Joseland (S)

Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, 305 Grattan Street, Parkville, VIC, 3010, Australia.
Victorian Comprehensive Cancer Centre, University of Melbourne Centre for Cancer Research, Parkville, VIC, 3010, Australia.

Susan G Preston (SG)

Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, 305 Grattan Street, Parkville, VIC, 3010, Australia.
Victorian Comprehensive Cancer Centre, University of Melbourne Centre for Cancer Research, Parkville, VIC, 3010, Australia.

Yoland Antill (Y)

Familial Cancer Centre, Royal Melbourne Hospital, Parkville, VIC, 3050, Australia.
Familial Cancer Centre, Cabrini Health, Malvern, VIC, 3144, Australia.
Familial Cancer Centre, Monash Health, Clayton, VIC, 3168, Australia.
Faculty of Medicine, Dentistry and Health Sciences, Monash University, Melbourne, VIC, 3800, Australia.

Rachel Austin (R)

Genetic Health Queensland, Royal Brisbane and Women's Hospital, Brisbane, QLD, 4029, Australia.

Alex Boussioutas (A)

Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia.
Department of Gastroenterology, The Alfred Hospital, Melbourne, VIC, 3004, Australia.
Department of Medicine, The Royal Melbourne Hospital, Melbourne, VIC, 3010, Australia.
Familial Cancer Centre, Peter MacCallum Cancer Centre, Parkville, VIC, 3000, Australia.

Michelle Bowman (M)

Familial Cancer Service, Westmead Hospital, Sydney, NSW, 2145, Australia.

Jo Burke (J)

Tasmanian Clinical Genetics Service, Royal Hobart Hospital, Hobart, TAS, 7000, Australia.
School of Medicine, University of Tasmania, Sandy Bay, TAS, 7005, Australia.

Ainsley Campbell (A)

Clinical Genetics Unit, Austin Health, Melbourne, VIC, 3084, Australia.

Simin Daneshvar (S)

Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, 305 Grattan Street, Parkville, VIC, 3010, Australia.
Victorian Comprehensive Cancer Centre, University of Melbourne Centre for Cancer Research, Parkville, VIC, 3010, Australia.

Emma Edwards (E)

Familial Cancer Service, Westmead Hospital, Sydney, NSW, 2145, Australia.

Margaret Gleeson (M)

Hunter Family Cancer Service, Newcastle, NSW, 2298, Australia.

Annabel Goodwin (A)

Cancer Genetics Department, Royal Prince Alfred Hospital, Camperdown, NSW, 2050, Australia.
University of Sydney, Sydney, NSW, 2050, Australia.

Marion T Harris (MT)

Monash Health Familial Cancer Centre, Clayton, VIC, 3168, Australia.

Alex Henderson (A)

Genetic Health Service, Wellington, Greater Wellington, 6242, New Zealand.
Wellington Hospital, Newtown, Greater Wellington, 6021, New Zealand.

Megan Higgins (M)

Genetic Health Queensland, Royal Brisbane and Women's Hospital, Brisbane, QLD, 4029, Australia.
University of Queensland, St Lucia, QLD, 4067, Australia.

John L Hopper (JL)

Centre for Epidemiology and Biostatistics, The University of Melbourne, Melbourne, VIC, 3010, Australia.

Ryan A Hutchinson (RA)

Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, 305 Grattan Street, Parkville, VIC, 3010, Australia.
Victorian Comprehensive Cancer Centre, University of Melbourne Centre for Cancer Research, Parkville, VIC, 3010, Australia.

Emilia Ip (E)

Cancer Genetics Service, Liverpool Hospital, Liverpool, NSW, 2170, Australia.

Joanne Isbister (J)

Genomic Medicine and Familial Cancer Centre, Royal Melbourne Hospital, Parkville, VIC, 3000, Australia.
Department of Medicine, The University of Melbourne, Melbourne, VIC, 3000, Australia.
Parkville Familial Cancer Centre, Peter McCallum Cancer Centre, Melbourne, VIC, 3000, Australia.

Kais Kasem (K)

Department of Clinical Pathology, Medicine Dentistry and Health Sciences, The University of Melbourne, Parkville, VIC, Australia.

Helen Marfan (H)

Genetic Health Queensland, Royal Brisbane and Women's Hospital, Brisbane, QLD, 4029, Australia.

Di Milnes (D)

Genetic Health Queensland, Royal Brisbane and Women's Hospital, Brisbane, QLD, 4029, Australia.
Royal Brisbane and Women's Hospital, Herston, QLD, 4029, Australia.

Annabelle Ng (A)

Cancer Genetics Department, Royal Prince Alfred Hospital, Camperdown, NSW, 2050, Australia.

Cassandra Nichols (C)

Genetic Services of Western Australia, King Edward Memorial Hospital, Perth, WA, 6008, Australia.

Shona O'Connell (S)

Monash Health Familial Cancer Centre, Clayton, VIC, 3168, Australia.

Nicholas Pachter (N)

Genetic Services of Western Australia, King Edward Memorial Hospital, Perth, WA, 6008, Australia.
Medical School, University of Western Australia, Perth, WA, 6009, Australia.
School of Medicine, Curtin University, Perth, WA, 6845, Australia.

Bernard J Pope (BJ)

Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, 305 Grattan Street, Parkville, VIC, 3010, Australia.
Melbourne Bioinformatics, The University of Melbourne, Melbourne, VIC, 3051, Australia.

Nicola Poplawski (N)

Adult Genetics Unit, Royal Adelaide Hospital, Adelaide, SA, 5000, Australia.
Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, 5000, Australia.

Abiramy Ragunathan (A)

Familial Cancer Service, Westmead Hospital, Sydney, NSW, 2145, Australia.

Courtney Smyth (C)

Familial Cancer Centre, Monash Health, Clayton, VIC, 3168, Australia.

Allan Spigelman (A)

Hunter Family Cancer Service, Newcastle, NSW, 2298, Australia.
St Vincent's Cancer Genetics Unit, Sydney, NSW, 2290, Australia.
Surgical Professorial Unit, UNSW Clinical School of Clinical Medicine, Sydney, NSW, 2052, Australia.

Kirsty Storey (K)

Parkville Familial Cancer Centre, Peter McCallum Cancer Centre, Melbourne, VIC, 3000, Australia.

Rachel Susman (R)

Genetic Health Queensland, Royal Brisbane and Women's Hospital, Brisbane, QLD, 4029, Australia.

Jessica A Taylor (JA)

Genomic Medicine and Familial Cancer Centre, Royal Melbourne Hospital, Parkville, VIC, 3000, Australia.

Linda Warwick (L)

ACT Genetic Service, The Canberra Hospital, Woden, ACT, 2606, Australia.

Mathilda Wilding (M)

Familial Cancer Service, Royal North Shore Hospital, St Leonards, NSW, 2065, Australia.

Rachel Williams (R)

Prince of Wales Clinical School, UNSW Medicine and Health, UNSW Sydney, Kensington, NSW, 2052, Australia.
Prince of Wales Hereditary Cancer Centre, Prince of Wales Hospital, Randwick, NSW, 2031, Australia.

Aung K Win (AK)

Victorian Comprehensive Cancer Centre, University of Melbourne Centre for Cancer Research, Parkville, VIC, 3010, Australia.
Centre for Epidemiology and Biostatistics, The University of Melbourne, Melbourne, VIC, 3010, Australia.
Genomic Medicine and Familial Cancer Centre, Royal Melbourne Hospital, Parkville, VIC, 3000, Australia.

Michael D Walsh (MD)

Sullivan Nicolaides Pathology, Bowen Hills, QLD, 4006, Australia.
School of Biomedical Sciences, Queensland University of Technology, Brisbane, QLD, 4072, Australia.

Finlay A Macrae (FA)

Genomic Medicine and Familial Cancer Centre, Royal Melbourne Hospital, Parkville, VIC, 3000, Australia.
Colorectal Medicine and Genetics, The Royal Melbourne Hospital, Parkville, VIC, Australia.

Mark A Jenkins (MA)

Victorian Comprehensive Cancer Centre, University of Melbourne Centre for Cancer Research, Parkville, VIC, 3010, Australia.
Centre for Epidemiology and Biostatistics, The University of Melbourne, Melbourne, VIC, 3010, Australia.

Christophe Rosty (C)

Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, 305 Grattan Street, Parkville, VIC, 3010, Australia.
Victorian Comprehensive Cancer Centre, University of Melbourne Centre for Cancer Research, Parkville, VIC, 3010, Australia.
Envoi Specialist Pathologists, Brisbane, QLD, 4059, Australia.
University of Queensland, Brisbane, QLD, 4072, Australia.

Ingrid M Winship (IM)

Genomic Medicine and Familial Cancer Centre, Royal Melbourne Hospital, Parkville, VIC, 3000, Australia.
Department of Medicine, The University of Melbourne, Melbourne, VIC, 3000, Australia.

Daniel D Buchanan (DD)

Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, 305 Grattan Street, Parkville, VIC, 3010, Australia. daniel.buchanan@unimelb.edu.au.
Victorian Comprehensive Cancer Centre, University of Melbourne Centre for Cancer Research, Parkville, VIC, 3010, Australia. daniel.buchanan@unimelb.edu.au.
Genomic Medicine and Familial Cancer Centre, Royal Melbourne Hospital, Parkville, VIC, 3000, Australia. daniel.buchanan@unimelb.edu.au.

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