General description
A cell-permeable quinolinesulfonamide compound that acts as potent and reversible inhibitor of lactate dehydrogenase A (IC50 = 2.6 nM for human LDH-A). The inhibition appears to be competitive with respect to NADH and non-competitive with respect to pyruvate. Exhibits high selectivity over LDH-B (IC50 = 43 nM) and does not affect the activity of 32 other enzymes, receptors, and ion-channels even at high concentration (~ 10 µM). Rapidly reduces lactate production in hepatocellular (EC50 = 400 and 588 nM in Snu398 and HepG2 cells, respectively) and breast carcinoma cell lines, and induces PKM2 activation (EC50 = 600 nM in Snu398 cells). Shown to increase mitochondrial oxygen consumption rate (EC50 = 500 and 900 nM in Snu398 and HepG2 cells, respectively) and causes a diminution in extracellular acidification rates (EC50 = 600 nM in both cell lines). Shown to downregulate the ability of A549 cells to form tumorspheres and diminishes the number of CD24/CD44-positive cells in HMLER system and in stem cells isolated from HMLER. Blocks the proliferation of Snu398 cells and induces apoptosis within 24 h of incubation.
Biochem/physiol Actions
Cell permeable: yes
Primary Target
lactate dehydrogenase A
Reversible: yes
Target IC50: 2.6 nM for human LDH-A
Packaging
Packaged under inert gas
Warning
Toxicity: Standard Handling (A)
Other Notes
Xie, H. 2014. Cell Metab.19, 795.
Billiard, J. 2013. Cancer Metab.1, 19.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Molecular Weight: 649.62. Empirical Formula: C31H25F2N5O7S. Assay: ≥. 95% (HPLC). Quality Level: 100. form: solid. manufacturer/tradename: Calbiochem®. . storage condition: OK to freeze, protect from light. color: yellow. solubility: DMSO: 50 . mg/mL. storage temp.: 2-8°C. Storage Class Code: 11 - Combustible Solids. WGK: WGK 3. Flash Point(F): Not applicable. Flash Point(C): Not applicable.- UPC:
- 41141621
- Condition:
- New
- Weight:
- 1.00 Ounces
- HazmatClass:
- No
- WeightUOM:
- LB
- MPN:
- 5336600001