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Novel ex vivo models of epithelial ovarian cancer: the future of biomarker and therapeutic research

Title: Novel ex vivo models of epithelial ovarian cancer: the future of biomarker and therapeutic research
Authors: Clark, J
Fotopoulou, C
Cunnea, P
Krell, J
Item Type: Journal Article
Abstract: Epithelial ovarian cancer (EOC) is a heterogenous disease associated with variations in presentation, pathology and prognosis. Advanced EOC is typified by frequent relapse and a historical 5-year survival of less than 30% despite improvements in surgical and systemic treatment. The advent of next generation sequencing has led to notable advances in the field of personalised medicine for many cancer types. Success in achieving cure in advanced EOC has however been limited, although significant prolongation of survival has been demonstrated. Development of novel research platforms is therefore necessary to address the rapidly advancing field of early diagnostics and therapeutics, whilst also acknowledging the significant tumour heterogeneity associated with EOC. Within available tumour models, patient-derived organoids (PDO) and explant tumour slices have demonstrated particular promise as novel ex vivo systems to model different cancer types including ovarian cancer. PDOs are organ specific 3D tumour cultures that can accurately represent the histology and genomics of their native tumour, as well as offer the possibility as models for pharmaceutical drug testing platforms, offering timing advantages and potential use as prospective personalised models to guide clinical decision-making. Such applications could maximise the benefit of drug treatments to patients on an individual level whilst minimising use of less effective, yet toxic, therapies. PDOs are likely to play a greater role in both academic research and drug development in the future and have the potential to revolutionise future patient treatment and clinical trial pathways. Similarly, ex vivo tumour slices or explants have also shown recent renewed promise in their ability to provide a fast, specific, platform for drug testing that accurately represents in vivo tumour response. Tumour explants retain tissue architecture, and thus incorporate the majority of tumour microenvironment making them an attractive method to re-capitulate in vivo conditions, again with significant timing and personalisation of treatment advantages for patients. This review will discuss the current treatment landscape and research models for EOC, their development and new advances towards the discovery of novel biomarkers or combinational therapeutic strategies to increase treatment options for women with ovarian cancer.
Issue Date: 25-Mar-2022
Date of Acceptance: 28-Feb-2022
URI: http://hdl.handle.net/10044/1/96210
DOI: 10.3389/fonc.2022.837233
ISSN: 2234-943X
Publisher: Frontiers Media
Start Page: 1
End Page: 17
Journal / Book Title: Frontiers in Oncology
Volume: 12
Copyright Statement: © 2022 Clark, Fotopoulou, Cunnea and Krell. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Keywords: 1112 Oncology and Carcinogenesis
Publication Status: Published
Article Number: 837233
Online Publication Date: 2022-03-25
Appears in Collections:Department of Surgery and Cancer

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