from the Mayo Clinic in Rochester, US have now developed a new, cheaper and
faster method to detect certain types of lung cancer in patients with no
history of smoking.
people who have never smoked a single cigarette suffer from lung adeno
carcinoma. A protein called 'anaplastic lymphoma kinase' (ALK) is present in
the tumor which grows in such patients. Such a tumor is most likely to be detected
among younger people and is more aggressive than the other types of tumors. The
disease progression is more than double the progression rate of ALK-negative
lung cancer tumor.
Immunohistochemistry (IHC) can be used to detect lung cancer by testing
antigens or proteins in the tumor. Study leader, Dr. Ping Yang said, "This discovery could
make it easier for doctors to select the best courses of treatment for individual
patients. Because it is already performed in most pathology labs, (IHC) testing
can be done on-site versus sending a sample to another diagnostic testing