Why the same DNA damage causes cancer in some people but not others
New research indicates that inherited genetics play a significant role in how cancer develops and how patients respond to DNA-damaging treatments. This discovery helps explain why individuals with similar environmental exposures experience vastly different cancer outcomes.
Why it matters
This finding supports the shift toward personalized medicine, where genetic background informs cancer prevention and treatment strategies.
Scientists have uncovered the first direct evidence that inherited genetics can strongly influence cancer risk and help determine how tumors develop over time. The results show that the genes a person is born with can interact with mutations acquired later in life, shaping the evolutionary path a tumor follows.
The discovery may help explain why people living in similar environments can face very different cancer risks. It also suggests that future approaches to cancer prevention and screening may need to consider inherited genetics and the diversity found across human populations.
Published in Nature , the mouse study also indicates that a patient's genetic background could affect how they respond to cancer treatments that damage DNA. This strengthens the argument for diagnostic and treatment strategies tailored more closely to each individual.
Why DNA Damage Does Not Affect Everyone Equally
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in