Article Text

Download PDFPDF
Impact of hypoxia on cervical cancer outcomes
  1. Anubhav Datta1,2,
  2. Catharine West1,
  3. James P B O'Connor1,3,
  4. Ananya Choudhury1,4 and
  5. Peter Hoskin1,5
  1. 1Division of Cancer Sciences, The University of Manchester Faculty of Biology Medicine and Health, Manchester, UK
  2. 2Clinical Radiology, The Christie NHS Foundation Trust, Manchester, UK
  3. 3Division of Radiotherapy and Imaging, Institute of Cancer Research, London, UK
  4. 4Clinical Oncology, The Christie Hospital NHS Trust, Manchester, UK
  5. 5Clinical Oncology, Mount Vernon Cancer Centre, Northwood, Middlesex, UK
  1. Correspondence to Dr Anubhav Datta, Division of Cancer Sciences, The University of Manchester Faculty of Biology Medicine and Health, Manchester M20 4GJ, UK; anubhav.datta{at}manchester.ac.uk

Abstract

The annual global incidence of cervical cancer is approximately 604 000 cases/342 000 deaths, making it the fourth most common cancer in women. Cervical cancer is a major healthcare problem in low and middle income countries where 85% of new cases and deaths occur. Secondary prevention measures have reduced incidence and mortality in developed countries over the past 30 years, but cervical cancer remains a major cause of cancer deaths in women. For women who present with Fédération Internationale de Gynécologie et d’Obstétrique (FIGO 2018) stages IB3 or upwards, chemoradiation is the established treatment. Despite high rates of local control, overall survival is less than 50%, largely due to distant relapse. Reducing the health burden of cervical cancer requires greater individualization of treatment, identifying those at risk of relapse and progression for modified or intensified treatment. Hypoxia is a well known feature of solid tumors and an established therapeutic target. Low tumorous oxygenation increases the risk of local invasion, metastasis and treatment failure. While meta-analyses show benefit, many individual trials targeting hypoxia failed in part due to not selecting patients most likely to benefit. This review summarizes the available hypoxia-targeted strategies and identifies further research and new treatment paradigms needed to improve patient outcomes. The applications and limitations of hypoxia biomarkers for treatment selection and response monitoring are discussed. Finally, areas of greatest unmet clinical need are identified to measure and target hypoxia and therefore improve cervical cancer outcomes.

  • cervix uteri
  • radiotherapy

Statistics from Altmetric.com

Footnotes

  • Twitter @axd828

  • Contributors All contributors have critically reviewed the papers included in the review and have helped write the submission. In particular, CW provided expertise on hypoxia radiobiology and tissue derived biomarkers. JPBO provided expertise on imaging biomarkers. AC and PH provided expertise on the clinical problem of cervical cancer and the role of hypoxia targeting agents.

  • Funding AD is on a 3-year Cancer Research UK funded PhD (Award ID: A28707). This work is also supported by the NIHR Manchester Biomedical Research Centre.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.