Scientists have uncovered new hope for the early detection of pancreatic cancer, one of the deadliest cancers, after finding that precancerous changes in the pancreas may appear years before the disease and its symptoms manifest. Early detection could allow interventions at stages where treatment is most effective.
The study published in Gastroenterology showed that precancerous cells cluster in small groups within the tissue and are located near immune cells. This proximity leads to interactions that limit the immune system’s ability to detect and destroy these cells, indicating that immune evasion may start much earlier than previously thought.
The research team at Hebrew University of Jerusalem used advanced imaging techniques to analyze tissue samples from humans and mice. They found that the interaction between precancerous and immune cells promotes genetic expression patterns that suppress immune activity, explaining the difficulty of early detection.
Dr. Sharona Tornovsky-Babaey, an immunologist and co-author, explained that understanding how these lesions form and evolve may help identify high-risk lesions more accurately in the future and design interventions before cellular changes become full-blown cancer. Similar patterns were observed in human tissue, reinforcing the study’s significance.
Pancreatic cancer remains challenging to diagnose and treat, with only one in four patients surviving beyond a year post-diagnosis, mainly due to the absence of early symptoms and the pancreas’ deep location behind the stomach.
Experts note that while most cases have unknown causes, smoking, alcohol, and obesity are major risk factors. Incidence is rising among younger individuals, especially women, often linked to the more aggressive pancreatic ductal adenocarcinoma. Evidence connecting red and processed meat to increased risk remains inconclusive and requires further study.
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