Nicotine may push breast cancer cells from the original tumor to other parts of the body.
Besides serving as another warning against smoking, the finding could point to new targets for cancer drugs.
However, researchers stress it’s still too early to pinpoint the exact role nicotine may play in the spread of the disease.
Viewers with disabilities can get assistance accessing this station's FCC Public Inspection File by contacting the station with the information listed below. Questions or concerns relating to the accessibility of the FCC's online public file system should be directed to the FCC at 888-225-5322, 888-835-5322 (TTY), or firstname.lastname@example.org.