Moderate penetrance genes complicate genetic testing for breast cancer diagnosis : ATM, CHEK2, BARD1 and RAD51D

Copyright © 2022 The Author(s). Published by Elsevier Ltd.. All rights reserved..

Breast cancer risk associated with germline likely pathogenic/pathogenic variants (PV) varies by gene, often by penetrance (high >50% or moderate 20-50%), and specific locus. Germline PVs in BRCA1 and BRCA2 play important roles in the development of breast and ovarian cancer in particular, as well as in other cancers such as pancreatic and prostate cancers and melanoma. Recent studies suggest that other cancer susceptibility genes, including ATM, CHEK2, PALB2, RAD51C and RAD51D confer differential risks of breast and other specific cancers. In the era of multigene panel testing, advances in next-generation sequencing technologies have notably reduced costs in the United States (US) and enabled sequencing of BRCA1/2 concomitantly with additional genes. The use of multigene-panel testing is beginning to expand in Europe as well. Further research into the clinical implications of variants in moderate penetrance genes, particularly in unaffected carriers, is needed for appropriate counselling and risk management with data-driven plans for surveillance and/or risk reduction. For individuals at high risk without any pathogenic or likely pathogenic variant in cancer susceptibility genes or some carriers of pathogenic variants in moderate-risk genes such as ATM and CHEK2, polygenic risk scores offer promise to help stratify breast cancer risk and guide appropriate risk management options. Cancer patients whose tumours are driven by the loss of function of both copies of a predisposition gene may benefit from therapies targeting the biological alterations induced by the dysfunctional gene e.g. poly ADP ribose polymerase (PARP) inhibitors and other novel pathway agents in cancers with DNA repair deficiencies. A better understanding of mechanisms by which germline variants drive various malignancies may lead to improvements in both therapeutic and preventive management options.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:65

Enthalten in:

Breast (Edinburgh, Scotland) - 65(2022) vom: 20. Okt., Seite 32-40

Sprache:

Englisch

Beteiligte Personen:

Graffeo, R [VerfasserIn]
Rana, H Q [VerfasserIn]
Conforti, F [VerfasserIn]
Bonanni, B [VerfasserIn]
Cardoso, M J [VerfasserIn]
Paluch-Shimon, S [VerfasserIn]
Pagani, O [VerfasserIn]
Goldhirsch, A [VerfasserIn]
Partridge, A H [VerfasserIn]
Lambertini, M [VerfasserIn]
Garber, J E [VerfasserIn]

Links:

Volltext

Themen:

ATM
ATM protein, human
Ataxia Telangiectasia Mutated Proteins
BARD1
BARD1 protein, human
CHEK2
CHEK2 protein, human
Checkpoint Kinase 2
DNA-Binding Proteins
EC 2.3.2.27
EC 2.7.1.11
EC 2.7.11.1
Journal Article
Moderate genes
Polygenic risk score
RAD51D
RAD51D protein, human
Review
Tumor Suppressor Proteins
Ubiquitin-Protein Ligases

Anmerkungen:

Date Completed 14.09.2022

Date Revised 14.09.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.breast.2022.06.003

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM342930796