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Work starts on a cancer vaccine for people with Lynch syndrome

Tim Gunn
by Tim Gunn | News

10 September 2024

3 comments 3 comments

A medical professional drawing a dose of a vaccine from a vial with a syringe
Shutterstock - PhotobyTawat

With our funding, scientists at the University of Oxford are starting work on a vaccine to prevent cancer in people with Lynch syndrome. 

Lynch syndrome is a rare genetic condition that runs in families and increases the risk of bowel cancer, womb (endometrial) cancer and some other cancer types. The LynchVax vaccine could be a way to train people’s immune systems to stop these cancers from developing. 

Simon Leedham, Professor of Molecular Genetics at the University of Oxford, is co-lead of the LynchVax research team. 

“People with Lynch syndrome are at very high risk of developing bowel cancer, womb cancer and other cancers – so much so that they get invited to attend bowel screening appointments at a younger age than the rest of the UK population,” he said. 

“LynchVax has the potential to reduce that risk. While our work is in its infancy, we are excited by the prospect of a vaccine that can potentially be used to prevent the multiple types of cancer that typically occur in people with Lynch syndrome and deliver tangible improvements in survival.” 

The facts about Lynch syndrome

Our bodies are made up of millions of cells, each one containing our DNA, all the genes (or, to use a common metaphor, all the instructions) each of us needs to grow and function. Lynch syndrome is caused by alterations in one of a handful of genes that control how cells repair DNA damage. In some cells, these alterations can result in DNA damage building up until it affects other genes that control growth, increasing the risk of cancer.

Around 1 in 400 people in the UK (approximately 175,000 to 200,000 people) are estimated to have Lynch syndrome. Less than 5% of them (around 10,000 people) have been diagnosed. 

Lynch syndrome is estimated to cause around 1,300 bowel cancer cases in the UK every year, roughly 3% of the total. Up to 7 in 10 people with the condition will develop bowel cancer in their lifetime, many of them before they turn 50. 

People with Lynch syndrome also have an above average risk of developing endometrial cancer, ovarian cancer, stomach cancer, gallbladder cancer, prostate cancer and cancers of the urinary tract, among other cancer types. 

The first steps towards a vaccine

We’ve awarded up to £550,000 in funding to Leedham’s team, which will enable them to closely study the abnormal cell changes that lead to cancer in people with Lynch syndrome. By analysing these precancerous cells, the researchers hope to identify ways a vaccine could train the immune system to recognise and destroy them. 

“We hope our research will lay the early foundations to potentially prevent these [cancers] through vaccination, removing the fear of cancer from people whose chances of developing it in their lifetime are far higher,” said the LynchVax team’s other co-lead, Associate Professor David Church, a Cancer Research UK Advanced Clinician Scientist Fellow at the University of Oxford. 

Although the LynchVax team is taking its first step towards developing a vaccine and it will likely take years before the technology is ready to be tested in clinical trials, people with Lynch syndrome have already contributed to the project. They will continue to be closely involved as the research progresses. 

Headshot of Holly

“Research should be done with patients, not to or for them”

A patient involvement story

Alongside the scientific work, the team will consult a larger number of people living with Lynch syndrome on their views about using vaccination to prevent cancer. “This is a crucial step in preparing for future clinical trials,” said Helen White, a member of the LynchVax patient and public involvement group. 

LynchVax is one of several projects we’re funding through our prevention research strategy, which aims to use discoveries in the lab to find more precise ways to prevent cancer. This includes research into a vaccine to prevent lung cancer (LungVax). 

Lynch syndrome testing, cancer prevention and treatment

In line with National Institute for Health and Care Excellence (NICE) guidelines from 2017, the NHS offers a genomic test for Lynch syndrome to everyone diagnosed with bowel cancer or endometrial cancer. When this programme finds someone with Lynch syndrome, the test is also offered to their relatives. 

Because people with Lynch syndrome who are diagnosed with bowel cancer tend to have tumours that are more responsive to immunotherapies, this testing can also help doctors offer the treatment with the best chance of success. 

As part of the NHS Bowel Cancer Screening Programme, people with Lynch syndrome are also invited for a screening colonoscopy every two years. This helps with preventing and treating cancer, either by revealing precancerous cell changes so they can be dealt with before they develop into bowel cancer, or by helping doctors diagnose cancers in their early stages, when treatment is more likely to be successful. 

NICE also advises that people with Lynch syndrome can lower their risk of developing bowel cancer by taking aspirin daily for at least two years. This is based on the findings of the CAPP2 and CAPP3 studies, which we helped fund. Even so, as aspirin can cause side effects and isn’t suitable for everyone, you should speak to your GP or specialist care team before taking it. 

Earlier this year, researchers in England launched the UK’s first national registry of people with Lynch syndrome to help coordinate screening and treatment and support research across the country. 

    Comments

  • Michelle Prudden
    3 October 2024

    I hope that a vaccine can be achieved to help people with Lynch , if not for myself but my daughters & possible future family generations diagnosed with it .

  • kobra noori
    1 October 2024

    I am hopeful that it will be done.

  • Doreen Edwards
    25 September 2024

    Very interesting to read of the article
    about Lynch Syndrome and the work being carried out on a vaccine. Hope it will be successful.

Tell us what you think

Leave a Reply

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Read our comment policy.

    Comments

  • Michelle Prudden
    3 October 2024

    I hope that a vaccine can be achieved to help people with Lynch , if not for myself but my daughters & possible future family generations diagnosed with it .

  • kobra noori
    1 October 2024

    I am hopeful that it will be done.

  • Doreen Edwards
    25 September 2024

    Very interesting to read of the article
    about Lynch Syndrome and the work being carried out on a vaccine. Hope it will be successful.

Tell us what you think

Leave a Reply

Your email address will not be published. Required fields are marked *

Read our comment policy.