Abstract
The proliferation, migration, and invasion of tumor cells require a large amount of nutrients. Among them, the uptake of amino acids is crucial for most cellular functions, such as protein synthesis and cell growth. Tumor cells obtain a large number of essential amino acids from the environment through unique metabolic pathways and accelerate the synthesis of non-essential amino acids to meet their own needs. This review summarizes the uptake and utilization of amino acids by tumors and their inhibitory effects on immune cells, providing a basis for targeted metabolism in cancer treatment.