期刊
CURRENT CANCER DRUG TARGETS
卷 19, 期 11, 页码 863-876出版社
BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/1568009619666190802135714
关键词
LATI; cancer; structure; transporter; inhibitor; heteromeric amino acid transporter (HAT)
类别
资金
- Garfield Weston Foundation, UK
- Thrombosis research institutes in London
Background: The solute carrier family 7 (SLC7) can be categorically divided into two subfamilies, the L-type amino acid transporters (LATs) including SLC7A5-13, and SLC7A15, and the cationic amino acid transporters (CATs) including SLC7A1-4 and SLC7A14. Members of the CAT family transport predominantly cationic amino acids by facilitating diffusion with intracellular substrates. LATI (also known as SLC7A5), is defined as a heteromeric amino acid transporter (HAT) interacting with the glycoprotein CD98 (SLC3A2) through a conserved disulfide to uptake not only large neutral amino acids, but also several pharmaceutical drugs to cells. Methods: In this review, we provide an overview of the interaction of the structure-function of LATI and its essential role in cancer, specifically, its role at the blood-brain barrier (BBB) to facilitate the transport of thyroid hormones, pharmaceuticals (e.g., I-DOPA, gabapentin), and metabolites into the brain. Results: LAT1 expression increases as cancers progress, leading to higher expression levels in high-grade tumors and metastases. In addition, LAT1 plays a crucial role in cancer-associated reprogrammed metabolic networks by supplying tumor cells with essential amino acids. Conclusion: The increasing understanding of the role of LAT1 in cancer has led to an increase in interest surrounding its potential as a drug target for cancer treatment.
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