A cell-permeable, non-toxic aminopyrazolocarbonitrile compound that acts as a potent, selective, reversible and cAMP-independent activator of CFTR-dependent Cl- channel in airway epithelial cells (EC50 = 1.6uM in CFTR-expressing Fisher rat thyroid cells). Also shown to activate deltaF508-CFTR in primary CF-HBE cell cultures (EC50 = 3.5uM). Reported to directly bind to the same site as CFTRinh-172. Does neither elevate intracellular cAMP levels nor appear to have any requirement for cAMP agonist, such as forskolin. Shown to additively potentiate the G551D-CFTR Cl- current activated by forskolin with CFTR potentiator, VX-770. Exerts no effect on either Ca2+-activated Cl- channel (TMEM16A) or intracellular Ca2+ levels.
Storage and Stability:May be stored at 4°C. For long-term storage, aliquot and store at 4°C. Do not freeze. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Further dilutions can be made in assay buffer.
Important Note:This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Toxicity and Hazards: All products should be handled by qualified personnel only, trained in laboratory procedures.
