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Hereditary Breast Cancer: Molecular Mechanisms and Susceptibility Pathways

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Pathology, Diagnostics, and Therapeutics".

Deadline for manuscript submissions: closed (10 March 2021) | Viewed by 5256

Special Issue Editor


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Guest Editor
Head of Breast Cancer Center of the University Hospital Augsburg, Department of Gynaecology and Obstetrics, Stenglinstr. 2, 86156 Augsburg, Germany
Interests: mammary tumors; Fanconi Anemia pathway; BRCA1 and BRCA2 genes; hereditary breast cancer

Special Issue Information

Dear colleagues,

Fanconi Anemia (FA) is an autosomal recessive or X-linked recessive genetic disease characterized by an enhanced risk of developing cancer. It has been known that four of the FA genes FANCD1/BRCA2, FANCN/PALB2, FANCJ/BRIP1, and FANCO/RAD51C are also hereditary breast cancer genes.

Therefore, this Special Issue focuses on the interaction of both: the Fanconi Anemia pathway, and the molecular mechanisms of breast cancer development with a special focus on hereditary breast cancer.

High risk is conferred by the highly penetrant BRCA1 and BRCA2 genes as well as by other genes such as RAD51C or the Fanconi Anemia genes. Genes for breast cancer that were originally designated as moderately penetrant display higher penetrance than previously thought in families with a hereditary predisposition.

Because these genes play a major role in DNA repair it explains why tumours associated with such a mutation are more sensitive to platin derived chemotherapy and PARP inhibitor therapies. In carriers of BRCA1 and BRCA2, prophylactic bilateral mastectomy and adnexectomy significantly lowers the incidence of breast and ovarian cancer. Moreover, prophylactic adnexectomy also lowers the breast-and-ovarian-cancer-specific mortality, as well as the overall mortality.

Submissions from all fields of gene mutation in hereditary breast cancer and especially in the FA related genes are invited, starting with the 1st of September 2020.

Prof. Dr. med. Nina Ditsch
Guest Editor

Manuscript Submission Information

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Keywords

  • mammary tumors
  • Fanconi Anemia pathway
  • BRCA1 and BRCA2 genes
  • hereditary breast cancer

Published Papers (1 paper)

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Review

26 pages, 13648 KiB  
Review
Breast Cancer Predisposition Genes and Synthetic Lethality
by Hannah E. Neiger, Emily L. Siegler and Yihui Shi
Int. J. Mol. Sci. 2021, 22(11), 5614; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms22115614 - 25 May 2021
Cited by 14 | Viewed by 4482
Abstract
BRCA1 and BRCA2 are tumor suppressor genes with pivotal roles in the development of breast and ovarian cancers. These genes are essential for DNA double-strand break repair via homologous recombination (HR), which is a virtually error-free DNA repair mechanism. Following BRCA1 or BRCA2 [...] Read more.
BRCA1 and BRCA2 are tumor suppressor genes with pivotal roles in the development of breast and ovarian cancers. These genes are essential for DNA double-strand break repair via homologous recombination (HR), which is a virtually error-free DNA repair mechanism. Following BRCA1 or BRCA2 mutations, HR is compromised, forcing cells to adopt alternative error-prone repair pathways that often result in tumorigenesis. Synthetic lethality refers to cell death caused by simultaneous perturbations of two genes while change of any one of them alone is nonlethal. Therefore, synthetic lethality can be instrumental in identifying new therapeutic targets for BRCA1/2 mutations. PARP is an established synthetic lethal partner of the BRCA genes. Its role is imperative in the single-strand break DNA repair system. Recently, Olaparib (a PARP inhibitor) was approved for treatment of BRCA1/2 breast and ovarian cancer as the first successful synthetic lethality-based therapy, showing considerable success in the development of effective targeted cancer therapeutics. Nevertheless, the possibility of drug resistance to targeted cancer therapy based on synthetic lethality necessitates the development of additional therapeutic options. This literature review addresses cancer predisposition genes, including BRCA1, BRCA2, and PALB2, synthetic lethality in the context of DNA repair machinery, as well as available treatment options. Full article
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