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News
Norwegian scientists have uncovered a surprising new mechanism behind childhood cancer: kids who develop cancer appear to produce abnormal antibodies that attack their own DNA repair proteins, potentially crippling the body's ability to fix genetic damage. Children with cancer were about eight times more likely to carry these auto-antibodies than healthy peers. The findings, published in Frontiers in Immunology, could pave the way for early cancer screening in young children.
Norwegian scientists have identified a striking new mechanism that may help explain why some children develop cancer: their immune systems appear to produce rogue antibodies that target and disable their own DNA repair proteins. Published in Frontiers in Immunology, the study found that children aged 2–19 with cancer had significantly higher levels of IgG auto-antibodies against key DNA repair proteins — including RAD52, NUMA1, and MGMT — compared to healthy children and adults.
To test whether these antibodies precede cancer, researchers analyzed blood samples from 59 school-age children enrolled in long-term UK cohort studies. Half later developed cancer (on average six years after sampling). Lab experiments also confirmed these antibodies can actually enter cells and appear to home in on a key organelle involved in protein production.
By the Numbers:
Why it matters: This discovery opens the door to early autoimmune screening in young children — potentially catching cancer risk years before a diagnosis, and offering a new target for prevention strategies in pediatric oncology.
