(Press-News.org) Researchers at the University of Southampton have identified a new subtype of lymphoma which could pave the way to improved and more targeted treatments for some blood cancer patients.
The cancer scientists and biologists have also found that lymphoma cells of this new subtype carry a unique sugar that promotes the survival and growth of the cancer.
Lymphoma is a type of blood cancer that affects white blood cells called lymphocytes. There are many different types of lymphoma, but this latest breakthrough is in a type called diffuse large B-cell lymphoma (DLBCL), which affects our B cells. When operating normally, B cells help to fight infection in the body.
Within DLBCL, the researchers have now discovered a new subtype named ‘Mann-type DLBCL’.
The team, who worked with researchers in Canada and the United States, have described their findings in a recently published paper in the journal Blood.
Lead researcher Professor Francesco Forconi of the University of Southampton’s Cancer B-cell Group says: “Patients with this new subtype, Mann-type DLBCL, have a high-risk cancer that cannot respond well to conventional therapies, so identifying this as a distinct group is very important to their treatment programme.
“Understanding the type of cancers we fight is a crucial part of battling the disease and opens the door to developing new and improved therapies.”
The scientists analysed data from 595 DLBCL patients, accessed through two separate cohort datasets of DLBCL from the BC Cancer Agency (BCCA) de-novo DLBCL cohort and the National Cancer Institute (NCI) DLBCL. They looked for a specific sugar called mannose on the key B-cell receptor and successfully identified it in around a third of all DLBCL.
The researchers found that Mann-type DLBCL lymphoma cells always carry this sugar and are not sensitive to conventional anti-cancer drugs. Mannose is found naturally on the surface of many infective agents like viruses, but is typically not abundant on normal human cells.
The sugar’s presence helps the cancer cells to survive and grow more quickly, making them resistant to standard treatments – eventually resulting in an aggressive form of cancer and poorer outcomes for patients.
Director of the University of Southampton’s Institute for Life Sciences and co-author of the paper, Professor Max Crispin, comments: “It is highly unusual to see these kinds of carbohydrates play such a defining role in cancer biology. Finding mannose structures driving tumour growth is remarkable and a powerful example of how interdisciplinary science, combining molecular insight with clinical data, can transform our understanding of disease.”
This research to identify Mann-type DLBCL means doctors can now recognise specific cases of this type more easily using conventional laboratory tests. The breakthrough means the scientists can now work to find more effective, tailored treatments for this subtype and help provide better patient outcomes.
Ends
Notes to Editors
The paper ‘The Origin, Diagnosis, and Prognosis of Oligomannose-Type Diffuse Large B-Cell Lymphoma’ is published in the journal Blood, DOI: 10.1182/blood.2025029163. It can be found here: https://doi.org/10.1182/blood.2025029163.
For a copy of the full paper and for interview opportunities please contact Peter Franklin, Media Relations, University of Southampton. press@soton.ac.uk 023 8059 3212
The research was led by the University of Southampton, UK, working with BC Cancer, Vancouver, Canada and Simon Fraser University, Burnaby, British Columbia, Canada
.
For more about Medicine, Biological Sciences and the Institute for Life Sciences at the University of Southampton please visit:
https://www.southampton.ac.uk/about/faculties-schools-departments/faculty-of-medicine
https://www.southampton.ac.uk/study/subjects/biological-sciences
https://www.southampton.ac.uk/research/institutes-centres/institute-for-life-sciences
The University of Southampton drives original thinking, turns knowledge into action and impact, and creates solutions to the world’s challenges. We are among the top 100 institutions globally (QS World University Rankings 2026). Our academics are leaders in their fields, forging links with high-profile international businesses and organisations, and inspiring a 24,000-strong community of exceptional students, from over 135 countries worldwide. Through our high-quality education, the University helps students on a journey of discovery to realise their potential and join our global network of over 300,000 alumni. www.southampton.ac.uk END
Breakthrough gives hope in fight against aggressive form of blood cancer
2025-11-12
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