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Genomic Characterization of High-Grade Serous Ovarian Cancer: Dissecting Its Molecular Heterogeneity as a Road Towards Effective Therapeutic Strategies

  • Translational Oncology (L Vecchione, Section Editor)
  • Published:
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Abstract

High-grade serous ovarian carcinoma (HGSOC) accounts for the majority of the ovarian cancer deaths, but over the last years little improvement in overall survival has been achieved. HGSOC is a molecularly and clinically heterogeneous disease. At genomic level, it represents a C-class malignancy having frequent gene losses (NF1, RB1, PTEN) and gains (CCNE1, MYC). HGSOC shows a simple mutational profile with TP53 nearly always mutated and with other genes mutated at low frequency. Importantly, 50 % of all HGSOCs have genetic features indicating a homologous recombination (HR) deficiency. HR deficient tumors are highly sensitive to PARP inhibitor anticancer agents, which exhibit synthetic lethality with a defective HR pathway. Transcriptionally, HGSOCs can be grouped into different molecular subtypes with distinct biology and prognosis. Molecular stratification of HGSOC based on these genomic features may result in improved therapeutic strategies.

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Acknowledgments

The author would like to thank Professor René Bernards (NKI/AVL Amsterdam) and Astrid J Bosma (NKI/AVL Amsterdam) for critical reading of the manuscript.

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  1. Division of Molecular Carcinogenesis, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands

    Lorenza Mittempergher

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  1. Lorenza Mittempergher
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Correspondence to Lorenza Mittempergher.

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Mittempergher, L. Genomic Characterization of High-Grade Serous Ovarian Cancer: Dissecting Its Molecular Heterogeneity as a Road Towards Effective Therapeutic Strategies. Curr Oncol Rep 18, 44 (2016). https://doi.org/10.1007/s11912-016-0526-9

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  • DOI: https://doi.org/10.1007/s11912-016-0526-9

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