L-theanine: A promising substance in tumor research

Malignant tumor which can proliferate abnormally and transfer rapidly to other tissues, holds high mortality rate and is difficult to cure. Herewith it is responsible for great loss in economy. L-theanine, the specific amino acid in tea, performed a significant anti-tumor potential, it works via various methods, such as exert antitumor effect by itself; increase antitumor drugs concentration in tumor cells, inhibit tumor cell invasion and so on. Here, the authors elucidate and discuss these mechanisms comprehensively.