Peptide is a small piece of protein used to kill off tumors and stimulate the immune system.
At first, doctors thought peptide could only fight against breast cancer when it was tested in mice. But now, they found it had the same tumor-killing effects toward kidney, bone and lung cancer.
In the meantime, more tests will be conducted to see if it will work against human cancer cells.
The ultimate goal is to develop a vaccine that would fight a broad spectrum of cancers. However, human trials are at least five years away.
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 email@example.com.