The phrase "tumor promoter" refers to a substance or factor that encourages or helps the growth of tumors, which are abnormal cell masses in the body. Full definition
TPA is a toxic chemical described as «a potent tumor promoter in mouse skin» by the Boston - based firm Cell Signaling Technology. (fieryfoodscentral.com)
A combination of hypoxia and messages from the tumor cells initiates a process whereby the newly arrived macrophages assume their bad - boy identity as tumor promoters. (scientificamerican.com)
The study, «Testosterone Treatment is a Potent Tumor Promoter for the Rat Prostate,» was published online, ahead of print. (sciencedaily.com)