The Landscape and Therapeutic Implications of Molecular Profiles in Epithelial Ovarian Cancer

Epithelial ovarian cancer (EOC) affects 43,000 women worldwide every year and has a five-year survival rate of 30%. Mainstay treatment is extensive surgery and chemotherapy. Outcomes could be improved by molecular profiling. We conducted a review of the literature to identify relevant publications on molecular and genetic alterations in EOC. Approximately 15% of all EOCs are due to BRCA1 or BRCA2 mutations. Four histologic subtypes characterized by different mutations have been described: serous, endometrioid, mucinous, and clear-cell. Between 20-30% of high-grade serous EOCs have a BRCA mutation. Tumors with BRCA mutations are unable to repair double-strand DNA breaks, making them more sensitive to platinum-based chemotherapy and to PolyAdenosine Diphosphate-Ribose Polymerase (PARP) inhibitors. Olaparib is a PARP inhibitor with proven efficacy in BRCA-mutated ovarian cancer, but its effectiveness remains to be demonstrated in tumors with a BRCAness (breast cancer) profile (i.e., also including sporadic tumors in patients with deficient DNA repair genes). A universally accepted molecular definition of BRCAness is required to identify optimal theranostic strategies involving PARP inhibitors. Gene expression analyses have led to the identification of four subgroups of high-grade serous EOC: mesenchymal, proliferative, differentiated, and immunoreactive. These subtypes are not mutually exclusive but are correlated with prognosis. They are not yet used in routine clinical practice. A greater understanding of EOC subtypes could improve patient management.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:9

Enthalten in:

Journal of clinical medicine - 9(2020), 7 vom: 15. Juli

Sprache:

Englisch

Beteiligte Personen:

Dion, Ludivine [VerfasserIn]
Carton, Isis [VerfasserIn]
Jaillard, Sylvie [VerfasserIn]
Nyangoh Timoh, Krystel [VerfasserIn]
Henno, Sébastien [VerfasserIn]
Sardain, Hugo [VerfasserIn]
Foucher, Fabrice [VerfasserIn]
Levêque, Jean [VerfasserIn]
de la Motte Rouge, Thibault [VerfasserIn]
Brousse, Susie [VerfasserIn]
Lavoué, Vincent [VerfasserIn]

Links:

Volltext

Themen:

BRCA
BRCAness profile
Journal Article
Molecular subtypes
Ovarian cancer
Review
Therapeutic approach

Anmerkungen:

Date Revised 28.09.2020

published: Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.3390/jcm9072239

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM312560044