research news
Most cases of cancer result from avoidable factors such as toxic chemicals and radiation, contends a study published online in Nature on December 16 (S. Wu et al. Naturehttp://dx.doi.org/10.1038/nature16166; 2015). The paper attempts to rebut an argument that arose early this year, when a report in Science concluded that differences
in inherent cellular processes are the chief reason that some tissues
become cancerous more frequently than others (C. Tomasetti and B. Vogelstein Science 347, 78–81; 2015).
The work led to assertions that certain forms of cancer are mainly
the result of “bad luck”, and suggested that these types would be
relatively resistant to prevention efforts. “There’s no question what’s
at stake here,” says John Potter of the Fred Hutchinson Cancer Research
Center in Seattle, Washington, who studies causes of cancer. “This
informs whether or not we expend energy on prevention.”.....
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