Solute Carrier Family 1 Member 5 (SLC1A5) is a significant member of the amino acid transporter family, and a substantial body of evidence indicates that SLC1A5 exhibits markedly elevated expression in a range of cancers.20, 21, 22, 23, 24 Some studies have shown that glutamine metabolism has an impact on tumor proliferation, invasion, and stimulation of tumor neovascularization.25 This evidence concerns the gene SLC38A7 and cancer.