谷氨酰胺与肿瘤

谷氨酰胺是蛋白质合成中的编码氨基酸,正常生理情况下在体内可由小肠内皮细胞吸收,也可以由其他氨基酸或葡萄糖在相应酶的作用下转化而来谷氨酰胺是一类人体非必需氨基酸,在体内的浓度保持动态平衡.近年来大量研究表明,谷氨酰胺在肿瘤细胞代谢中发挥至关重要的作用,进而影响肿瘤的发展过程和治疗效果.本文拟对谷氨酰胺在正常细胞与肿瘤细胞中的代谢情况及其对肿瘤治疗的影响进行综述.

Glutamine and tumor

Glutamine,a coding amino acid in the process of synthesis of protein,could be absorbed by endothelial cells of the small intestine in most cases,or converted from other amino acid and glucose in the assistance of concerned enzyme.This nonessential amino acid maintains homeostasis in rivo.In recent years,a large number of researches reveal that glutamine plays an extremely important role in the tumor metabolism and therefore influences the process and treatment of cancer.In the study,the netabolism of glutamine in normal cells and tumor cells and its effects on tumor therapy were reviewed.