TEPP-46 (ML265) is a potent and selective Pyruvate kinase M2 (PKM2) activator with EC50 ~92 nM. It demonstrates >100-fold selectivity for PKM2 over the related PKM1, PKR, and PKL isoforms. It can stabilize pyruvate kinase subunit interactions, promote PKM2 tetramer formation and prevent inhibition by phosphotyrosine signaling. It can alter metabolism in cultured cells, and inhibit xenograft tumor growth in vivo. TEPP-46 inhibits LPS-induced Hif-1α and IL-1β, as well as the expression of a range of other Hif-1α-dependent genes.
CAS Number: 1221186-53-3
Molecular Weight: 372.46
Chemical Name: 5H-Thieno[2', 3':4, 5]pyrrolo[2, 3-d]pyridazin-5-one, 6-[(3-aminophenyl)methyl]-4, 6-dihydro-4-methyl-2-(methylsulfinyl)-
Appearance: Solid Power.
Purity: ≥98% (or refer to the Certificate of Analysis)
Solubility: DMSO up to 100 mM
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis
Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.
Shelf Life: ≥360 days if stored properly.
Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.
Drug Formulation: To be determined.
HS Tariff Code: 382200
How to use
TEPP-46 was used at 1-10 µM final concentration in various assays.
TEPP-46 was dosed to mice orally at 50 mg/Kg twice per day.
- Anastasiou D, et al. Pyruvate kinase M2 activators promote tetramer formation and suppress tumorigenesis. (2012) Nat Chem Biol. 8(10):839-47.
- Palsson-McDermott EM, et al. Pyruvate kinase M2 regulates Hif-1α activity and IL-1β induction and is a critical determinant of the warburg effect in LPS-activated macrophages. (2015) Cell Metab. 21(1):65-80.
- Giannoni E, et al. Targeting stromal-induced pyruvate kinase M2 nuclear translocation impairs oxphos and prostate cancer metastatic spread. (2015) Oncotarget. 6(27):24061-74.
- Walsh MJ, et al. ML265: A potent PKM2 activator induces tetramerization and reduces tumor formation and size in a mouse xenograft model. Probe Reports from the NIH Molecular Libraries Program.
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