Cancer mutation patterns differ in smokers, nonsmokers

DNA damage signatures offer clues to origin of malignancies in various tissues

lady smoking

SMOKE SIGNALS  Zeroing in on DNA mutations in tumors from nonsmokers and smokers offers clues to cancers’ causes.

Billion Photos/Shutterstock

DNA in cancerous tissues of tobacco smokers shows mutation patterns that differ from those in cancerous tissues of nonsmokers, a new analysis finds.