New research shows a brief burst of vigorous physical activity rapidly activates blood-borne biological signals that suppress bowel cancer cell growth and enhance DNA repair.
By yourNEWS Media Newsroom
A short burst of vigorous physical activity can rapidly activate biological processes that suppress bowel cancer cell growth and enhance DNA repair, according to new research from Newcastle University in the United Kingdom.
The study, led by Sam Orange and published in International Journal of Cancer, found that just 10 minutes of high-intensity cycling produced measurable changes in participants’ blood that directly affected cancer cells in laboratory tests.
Researchers recruited 30 men who were overweight or obese but otherwise healthy. Blood samples were collected before and immediately after a 10- to 12-minute session of vigorous cycling. When scientists exposed bowel cancer cells to the post-exercise blood serum, they observed significant biological effects not present with pre-exercise samples.
Analysis showed elevated levels of 13 proteins linked to reduced inflammation, improved blood vessel function and metabolic regulation. When applied to cancer cells, the post-exercise serum altered the activity of more than 1,300 genes, increasing those involved in DNA repair while suppressing genes associated with cancer cell growth and proliferation.
Neurofilament and DNA repair pathways play a critical role in maintaining cellular integrity. DNA damage, if left unrepaired, can accumulate over time and contribute to cancer development. The findings indicate that exercise-induced signals can rapidly enhance the body’s capacity to repair this damage, even after a very brief bout of activity.
For years, epidemiological studies have shown that people who are physically active have a lower risk of developing bowel cancer. The researchers said their work helps explain why, offering direct biological evidence that exercise itself produces blood-borne factors capable of slowing cancer growth.
The findings also align with earlier research suggesting exercise improves outcomes after a bowel cancer diagnosis. Prior studies have shown that regular physical activity following treatment is associated with significantly improved survival, with one large trial reporting a 37% reduction in the risk of death from bowel cancer among patients who exercised daily.
While the study used vigorous cycling, researchers noted that similar benefits may be achievable through other activities that meaningfully raise heart rate, such as brisk walking or sustained aerobic movement. The key factor appears to be intensity sufficient to trigger the body’s acute stress-response signaling.
The authors emphasized that exercise is most effective as part of a broader approach to cancer prevention, alongside maintaining a healthy weight, eating a fiber-rich diet, limiting processed meats and avoiding smoking.
Researchers said future work may focus on identifying the precise molecules responsible for the observed effects, potentially opening the door to therapies that replicate exercise-induced benefits for patients with limited mobility.
The study adds to growing evidence that even brief, regular physical activity can play a measurable role in long-term cancer prevention and overall metabolic health.
Eleven minutes of daily exercise lowers risk of early death, study says. Watch this video.
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Source: Natural News
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