BPTES is a selective inhibitor of Glutaminase GLS1 (KGA), which is found in the kidney and brain, and is positively regulated by myc and strongly expressed in many tumors and tumor cell lines. BPTES has a K(i) of approx. 3 microM. BPTES inhibits the allosteric activation caused by phosphate binding and promotes the formation of an inactive complex.
Chemical Formula: C24H24N6O2S3
Exact Mass: 524.1123
Molecular Weight: 524.676
Elemental Analysis: C, 54.94; H, 4.61; N, 16.02; O, 6.10; S, 18.33
Appearance: Solid powder
Purity: >98% (or refer to the Certificate of Analysis)
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility: Soluble in DMSO, not in water
Shelf Life: >2 years if stored properly
Drug Formulation: This drug may be formulated in DMSO
Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code: 2934.99.9001
BPTES (10 µM) exhibits inhibition of PDAC cell proliferation. BPTES preferentially slows growth of mutant IDH1 cells without inducing apoptosis. BPTES (10 µM) reduces glutaminase activity in both WT and mutant IDH1 expressing cells, diminishes glutamate and α-KG levels, and increases glycolytic intermediates while leaving total 2-HG levels unaffected. BPTES (10 µM) shows a clear synergistic anti-cancer effect with 10 μM of 5-FU in A549 and EKVX cell lines, and results in a growth reduction response not only in EKVX and A549 but also in most of the NSCLC cell lines. BPTES (10 µM) effectively reduces the levels of the metabolites of the TCA cycle, with no changes in the levels of metabolites in glycolysis and the pentose phosphate pathway. BPTES treatment reduces about 30% ATP production under normoxia, and an additional 10% reduction of ATP production is observed under hypoxia in EKVX.
BPTES-NPs (BPTES nanoparticles, 1.2 mg BPTES in 100 µL nanoparticles, i.v.) significantly attenuates tumor growth in the patient-derived pancreatic orthotopic tumor model.
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Hernandez-Davies JE, Tran TQ, Reid MA, Rosales KR, Lowman XH, Pan M, Moriceau G, Yang Y, Wu J, Lo RS, Kong M. Vemurafenib resistance reprograms melanoma cells towards glutamine dependence. J Transl Med. 2015 Jul 3;13:210. doi: 10.1186/s12967-015-0581-2. PubMed PMID: 26139106; PubMed Central PMCID: PMC4490757.
Xiang Y, Stine ZE, Xia J, Lu Y, O'Connor RS, Altman BJ, Hsieh AL, Gouw AM, Thomas AG, Gao P, Sun L, Song L, Yan B, Slusher BS, Zhuo J, Ooi LL, Lee CG, Mancuso A, McCallion AS, Le A, Milone MC, Rayport S, Felsher DW, Dang CV. Targeted inhibition of tumor-specific glutaminase diminishes cell-autonomous tumorigenesis. J Clin Invest. 2015 Jun;125(6):2293-306. doi: 10.1172/JCI75836. Epub 2015 Apr 27. PubMed PMID: 25915584; PubMed Central PMCID: PMC4497742.
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