Pharmacological blockade of ASCT2-dependent glutamine transport leads to antitumor efficacy in preclinical models.

Published

Journal Article

The unique metabolic demands of cancer cells underscore potentially fruitful opportunities for drug discovery in the era of precision medicine. However, therapeutic targeting of cancer metabolism has led to surprisingly few new drugs to date. The neutral amino acid glutamine serves as a key intermediate in numerous metabolic processes leveraged by cancer cells, including biosynthesis, cell signaling, and oxidative protection. Herein we report the preclinical development of V-9302, a competitive small molecule antagonist of transmembrane glutamine flux that selectively and potently targets the amino acid transporter ASCT2. Pharmacological blockade of ASCT2 with V-9302 resulted in attenuated cancer cell growth and proliferation, increased cell death, and increased oxidative stress, which collectively contributed to antitumor responses in vitro and in vivo. This is the first study, to our knowledge, to demonstrate the utility of a pharmacological inhibitor of glutamine transport in oncology, representing a new class of targeted therapy and laying a framework for paradigm-shifting therapies targeting cancer cell metabolism.

Full Text

Duke Authors

Cited Authors

  • Schulte, ML; Fu, A; Zhao, P; Li, J; Geng, L; Smith, ST; Kondo, J; Coffey, RJ; Johnson, MO; Rathmell, JC; Sharick, JT; Skala, MC; Smith, JA; Berlin, J; Washington, MK; Nickels, ML; Manning, HC

Published Date

  • February 2018

Published In

Volume / Issue

  • 24 / 2

Start / End Page

  • 194 - 202

PubMed ID

  • 29334372

Pubmed Central ID

  • 29334372

Electronic International Standard Serial Number (EISSN)

  • 1546-170X

Digital Object Identifier (DOI)

  • 10.1038/nm.4464

Language

  • eng

Conference Location

  • United States