Ewch i’r prif gynnwys
Dr Lee Parry

Dr Lee Parry

Cymrawd Ymchwil

+44 (0)29 2068 8017
1.23, Adeilad Hadyn Ellis, Heol Maendy, Caerdydd, CF24 4HQ
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Ar gael fel goruchwyliwr ôl-raddedig



Prevention and Early Detection of Cancer

Wales Cancer Research Centre Lead for Early Detection

Wales Cancer Research Centre Lead for Personalised Prevention

Human Tissue Officer, School of Biosciences

Research overview

Colorectal cancer (CRC) leads to approximately 600,000 deaths globally each year and is one of the major causes of death in the western world. In the UK it is the fourth most common cancer with around 40,000 new cases diagnosed each year (Cancer Research UK). At least half of these cases are thought to be preventable, as diet and lifestyle choices play a significant role in altering a person’s risk of developing cancer.

Perhaps unsurprisingly bowel cancer is strongly linked to dietary choices, for example a high fibre diet is associated with a lower cancer risk. However, the reasons for these links remain unknown. To gain a better understanding we need to study the intestinal stem cells that are responsible for maintaining a healthy bowel, as it is damage to these cells which can cause cancer.

However, in comparison to cancer there is little work performed on the normal bowel, partly due to the difficulty of obtaining samples from healthy people and lack of research teams capable of understanding the complete effect of diet on the bowel. The group is working to identify how the bacteria, immune system, epigenome and stem cells in the normal and cancerous bowel respond to different food types. The focus of the research is to improve our understanding of diet and health to provide accurate public advice and develop ways of preventing or detecting bowel cancer.


Originally from the South Wales valleys, my undergraduate training was completed in Cardiff University, followed by a PhD at the Institute of Medical Genetics at (what was then) the University of Wales College of Medicine.  My Cancer Research Wales funded PhD was completed in the laboratory of Professors Julian Sampson and Jeremy Cheadle on the "Molecular and Functional Analysis of the Human Tumour Suppressor Genes TSC1 and TSC2".  Upon completing my PhD in 2002 I took up a Postdoctoral Fellow position at the Murdoch Children's Research Institute (MCRI) in the Royal Children's Hospital in Melbourne, Australia.  My work there was a change of focus from the cancer genetics of my PhD as I worked in the research groups of A/Prof Henrik Dahl and David Thorburn on Complex I deficiency in mitochondria. Upon completing this post I returned to Cardiff University and to cancer genetics, working on a Cancer Research UK funded project in the laboratory of Prof Alan Clarke.  In July 2013 I took up a fellowship at the European Cancer Stem Cell Research Institute where my research focused on understanding and therapeutically exploiting the mechanisms that links the environment (diet & gut bacteria) to inflammation and colorectal cancer.  In 2020 I became a lecture at Cardiff University's School of Biosciences, where I lead the Prevention and Early Detection of Cancer group.

Anrhydeddau a Dyfarniadau

2014 Cardiff University Excellence Award For Leadership

Aelodaethau proffesiynol

  • British Association of Cancer Research 2006-
  • European Association of Cancer Research 2006
  • Genetics Society 1998-present

Network Memberships

  • ECMC UK - Therapeutic Cancer Prevention Network
  • STFC Cancer Detection Network+

Safleoedd academaidd blaenorol

  • 2020 - present: Lecturer, Cardiff University, UK
  • 2020 - 2020: Senior Research Fellow, European Cancer Stem Cell Research Institute, Cardiff University, UK
  • 2013 - 2020: Research Fellow, European Cancer Stem Cell Research Institute, Cardiff University, UK
  • 2005 - 2013: Postdoctoral Research Associate, Cardiff University, UK
  • 2002-2005: Postdoctoral Research Fellow, Murdoch Children's Research Institute, Melbourne, Australia

Ymrwymiadau siarad cyhoeddus


  • European Cancer Stem Cell Research Institute, 4th Symposium, Cardiff, UK


  • Current Methods in Biomedical Research Summer School, Kuopio, Finland


  • Genetics Society - 4th Mammalian Gene, Disease and Devlopment Meeting, Bristol, UK
  • Royal Society of Biology - Public Lecture, Cardiff, UK


  • Beatson International Cancer Conference - Modelling the Mechanisms of Malignancy - In Vivo Veritas, Glasgow, UK
  • British Association Cancer Research - Therapeutic Interventions for Cancer Prevenmtion Meeting, Bristol, UK

Pwyllgorau ac adolygu

2020-present: Wales Cancer Research Centre Executive Committee Member

2018- present: Review Panel Member, Cardiff University Biobank

Grant Reviewer

  • American Institute of Cancer Research
  • Medical Research Council
  • NC3R
  • KiKa Dutch Cancer Council
  • Research Council of Norway

Journal Reviewer

  • BMC Cancer
  • Clinical and Translational Medicine
  • Immunology
  • Journal of Pathology
  • Journal of Visualised Experiments
  • Kidney International
  • Oncogene
  • PLOS Biology
  • Scientific Reports
  • Trends in Endocrinology























Lecturer at Cardiff University

  • 2020-21
    • Co-ordinator: 2nd Year Cancer Biology Workshop
    • Lecturer in immunology on BI3352 Cancer: Cellular and Molecular Mechanisms and Therapeutics
    • Supervisor on BI4001: Advanced Research Project
    • Contributor on BI4002: Advanced Research Methods
    • Contributor on BI4003: Frontiers in Biosciences
    • Supervisor on BI3001: Final Year Project
    • Contributor on BI2332: Concepts of Disease

Occaisonal Lecturer at University of West England

  • 2016-present: Lecturer at MSc Rsearch Conference Event

Primary research

Colorectal cancer (CRC) is the 4th most frequent type of tumour and the 2nd leading cause of malignancy-related deaths in the Western world. Worldwide CRC incidence is increasing in female patients, those younger than 50 years-old and in low/middle income nations. As ~50% of CRC cases are preventable (WCRF-UK and Cancer Research UK websites) there is a potential to significantly reduce CRC incidence and address this global clinical need.    Many of the fundamental mechanisms which link nutritional intake to physiological consequences remain undetermined. An improved mechanistic understanding would form part of a wider robust evidence base which is important in determining cause-and-effect relationships. There is a need to answer fundamental questions about the mechanisms by which diet impacts upon the normal biological processes and how they link through to influences on health and disease.  Primary prevention can be achieved with greater understanding of how the major CRC risk factors of diet and lifestyle impact on the intestinal stem cell from which CRC originates.  Secondary prevention can be achieved with improvements in existing and new techniques for the early detection of the pre-malignant polyps prior to thier progression to carcinoma.

It is well documented that CRCs evolve through loops of deregulated inflammatory stimuli which are sustained by DNA damage signalling pathways and epigenetic re-modelling (DNA methylation). Intensive work in recent years has led to the identification of genes and mechanisms that link diet to changes in the gut microbiota, and the pigenome. These alterations drive epithelial and inflammatory/immune responses which interact with intestinal stem cell and can increase or decrease CRC risk.  As a lab we aim to foster symbiotic relationships with a multidisciplinary team that includes epidemiologists, dietitians, exercise physiologists, translational scientists, basic scientists, clinical researchers, clinicians, statisticians and public health professionals, all of whom bring their individual specialties to the common purpose. As we believe that synergic analysis of all  parameters could provide new biological insights and effective biomarkers that could have applications in prevention, molecular diagnosis, prognosis and treatment of intestinal disease and CRC.

Current projects:

  • Molecular and Functional Characterization of the Role of Foxp3+ Regulatory T (Treg) Cells in the Development of Intestinal Cancer
  • Molecular and Functional Characterisation of the Nutri-Epigenetic Effects of Chemopreventative Polyphenols in Intestinal Cancer
  • Identifying the influence of the microbiome and metabolome on the normal and
    malignant murine intestinal stem cell
  • Exploiting oncotropic bacteria for early detection of colorectal cancer


I would be interested in supervising in the areas of:

  • Mouse models of disease
  • Intestinal stem cells/cancer stem cells
  • Cancer prevention
  • Cancer early detection
  • Any interaction between the microbiome, immune system and epigenome that impacts on the intestine
  • Technology to improve prevention and early detection of cancer
  • Translational/clinical resaerch into  

I currently supervise/co-supervise the following students:

Past projects


  • 2019
    • Supervisor for Ana Padhila - "Molecular and Functional Characterization of the Role of Foxp3+ Regulatory T (Treg) Cells in the Development of Intestinal Cancer"
  • 2018
    • Co-supervisor (50%) for Stephanie May-"Molecular and Functional Characterisation of the Nutri-Epigenetic Effects of Chemopreventative Polyphenols in Intestinal Cancer"
    • Co-supervisor (20%) for William Hill - " Heterotypic cell-cell interactions between KrasG12D cells and normal neighbours in early pancreatic cancer"


  • 2014 Supervisor for Christopher Towers - "Understanding the anti/pro tumourigenic role of Ifnγ in intestinal cancer"

Intergrated Masters

  • 2020
    • Supervisor for Cerian -"The impact of different eating mechanisms on gene expression profiles in intestinal stem cells and differentiated cell types."


2020 - Contributor to Techniquest After Hours - Rogue Cells

2018 - present: Contributor to Wales Gene Park Gentics Roadshow

2013 - present: CRUK representative and volunteer

2013 - present: - Wales STEM Ambassador