The invention features compounds and methods relating to novel hydroxy-proline analog inhibitors of the ASCT1 and ASCT2 neutral amino acid transporters. These analogs are potent and selective inhibitors of ASCT2 and ASCT1-mediated amino acid transport as evidenced by significantly reduced glutamine or alanine transport-associated currents or radiolabeled substrate (amino acid) uptake in
Xenopus
oocytes expressing ASCT2 or ASCT1. Selectivity has been established in the same manner whereby reduced substrate associated current or substrate uptake is unobserved in
Xenopus
oocytes expressing ATA2, SN1, or EAAT(s) (excitatory amino acid transporter). The compounds and methods of the invention can be used in research or clinical applications (e.g., for the treatment of cancer, microbial infection, or ischemia-related central nervous system injury).
该发明涉及与ASCT1和ASCT2中性
氨基酸转运体的新型羟基脯
氨酸类似物
抑制剂相关的化合物和方法。这些类似物是ASCT2和ASCT1的有效和选择性
抑制剂,表现为在表达ASCT2或ASCT1的Xenopus卵母细胞中,显著降低谷
氨酸或丙
氨酸转运相关的电流或放射标记底物(
氨基酸)的摄取。通过类似的方式建立了选择性,即在表达ATA2、SN1或E
AAT(s)(兴奋性
氨基酸转运体)的Xenopus卵母细胞中观察不到减少底物相关电流或底物摄取。该发明的化合物和方法可用于研究或临床应用(例如,用于癌症、微
生物感染或缺血相关中枢神经系统损伤的治疗)。