Neuroendocrine Neoplasms Associated with Germline Pathogenic Variants in the Homologous Recombination Pathway.


Journal

Endocrine pathology
ISSN: 1559-0097
Titre abrégé: Endocr Pathol
Pays: United States
ID NLM: 9009288

Informations de publication

Date de publication:
Sep 2019
Historique:
pubmed: 18 2 2019
medline: 22 1 2020
entrez: 18 2 2019
Statut: ppublish

Résumé

Neuroendocrine neoplasms (NENs) have been primarily associated with germline pathogenic variants in genes involved in chromatin remodeling (MEN1), cell cycle control (CDKN1B), PI3K/mTOR signaling (TSC1/2, PTEN) as well as pseudohypoxia (VHL, SDHx). Recent work has implicated various genes involved in DNA repair pathways in the pathophysiology of a subset of pancreatic neuroendocrine neoplasms, including BRCA2, via the homologous recombination pathway (HRD). To date, germline variants in other HRD pathway genes have not been described to contribute to NEN. PALB2, RAD51C, and BARD1 are additional tumor suppressor genes which also mediate repair of double stranded DNA breaks through the HRD pathway and are implicated in hereditary breast (PALB2; BARD1) and ovarian (RAD51C) cancer. Here we report three cases of NEN associated with germline pathogenic variants in PALB2 (pancreatic NEN), RAD51C (thymic NEN), and BARD1 (pancreaticoduodenal NEN) respectively, further linking the DNA repair pathway to NENs.

Identifiants

pubmed: 30772928
doi: 10.1007/s12022-019-9569-4
pii: 10.1007/s12022-019-9569-4
doi:

Types de publication

Case Reports Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

237-245

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Auteurs

Marta Szybowska (M)

Fred A. Litwin Family Center in Genetic Medicine, University Health Network, Toronto, ON, Canada.

Ozgur Mete (O)

Department of Laboratory Medicine and Pathobiology, University Health Network, University of Toronto, Toronto, Canada.

Evan Weber (E)

Medical Genetics, McGill University Health Centre, Montreal, QC, Canada.

Josh Silver (J)

Fred A. Litwin Family Center in Genetic Medicine, University Health Network, Toronto, ON, Canada.
Department of Molecular Genetics, University of Toronto, Toronto, Canada.

Raymond H Kim (RH)

Fred A. Litwin Family Center in Genetic Medicine, University Health Network, Toronto, ON, Canada. raymond.kim@uhn.ca.
Division of Medical Oncology, Department of Medicine, University of Toronto, Toronto, Canada. raymond.kim@uhn.ca.
Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, Fred. A. Litwin Centre in Genetic Medicine, University Health Network, University of Toronto, 60 Murray St. 3L-400, Toronto, Ontario, M5T 3L9, Canada. raymond.kim@uhn.ca.

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Classifications MeSH