Scientists developing new cancer vaccine to target ‘invisible’ stage

A new cancer vaccine is being developed which scientists hope could target the disease before it takes hold. The University of Oxford is working with pharmaceutical giant GSK to develop the new jab.

It is designed to prevent cancer from developing, by targeting cells at the pre-cancerous stage, before the disease begins to wreak havoc on the body. The end result could be in the form of a single jab, or multiple vaccines.

Professor Sarah Blagden, from the University of Oxford, told BBC Radio 4’s Today programme: “Cancer does not sort of come from nowhere.

You always imagine it would take about a year or two years to develop in your body but, in fact, we now know that cancers can take up to 20 years, sometimes even more, to develop – as a normal cell transitions to become cancerous.

“We know that, actually at that point, most cancers are invisible when they are going through this, what we now call pre-cancer stage. And so the purpose of the vaccine is not to vaccinate against established cancer, but to actually vaccinate against that pre-cancer stage.”

Several pharmaceutical firms have already had success with cancer vaccines that stop the disease coming back in people who already have established cancer. Oxford University has world-leading expertise in the study of pre-cancer biology, such as through identifying and sequencing neoantigens, which are proteins that forms on cancer cells and can be a target for drugs.

Prof Blagden will co-lead the new GSK-Oxford Cancer Immuno-Prevention Programme, which is backed by £50 million from GSK. She said Oxford had expertise in the pre-cancerous changes ‘so we can actually now start to sort of be able to detect the undetectable’.

She added that experts have ‘been able to work out what features those cells have as they’re transitioning towards cancer, and so we can design a vaccine specifically targeted against that’. “In this case, we’re actually going for the cancer itself, but going at it at the pre-cancer stage,” Prof Blagden said.

In 2021, GSK and Oxford established the Institute of Molecular and Computational Medicine to drive forward the research and development of new medicines. Tony Wood, chief scientific officer at GSK, said: “We’re pleased to further strengthen our relationship with Oxford University and to combine the deep knowledge of Oxford and GSK scientists.

“By exploring pre-cancer biology and building on GSK’s expertise in the science of the immune system, we aim to generate key insights for people at risk of developing cancer.” Professor Irene Tracey, vice-chancellor of the University of Oxford, added: “This partnership represents a step forward in cancer research.

“By working with GSK to unite experts in clinical trials, immuno-oncology, vaccinology and pre-cancer research from across the University of Oxford, we aim to unlock the potential of cancer vaccines and bring hope to patients worldwide.” The move has also been welcomed by the Government.

Science and Technology Secretary Peter Kyle said: “Cancer is a disease that has brought pain and heartbreak to every family in the country, including my own. But through our world-leading universities and businesses working in lockstep, like Oxford and GSK are doing here, we can harness science and innovation to transform what’s possible when it comes to diagnosing and treating this disease.”