GLPG1837 is a potent and reversible CFTR potentiator, with EC50s of 3 nM and 339 nM for F508del and G551D CFTR, respectively.
(R)-BPO-27 is a potent CFTR inhibitor with an IC50 of 4 nM.
CFTR corrector 2 is a cystic fibrosis transmembrane conductance corrector (CFTR), extracted from patent US20140274933[1].
VX-661 is a second F508del CFTR corrector and help CFTR protein reach the cell surface.
UCCF-853 is a CFTR modulator[1].
CFTR corrector 11 (compound 133) is a CFTR corrector[1].
VRT-532 (CFpot-532) is a potent is a potent CFTR modulator. VRT-532 enhances channel activity in G551D-CFTR and intrinsic ATPase activity of G551D-CFTR. VRT-532 has the potential for the research of cystic fibrosis[1][2].
KM11060 is a novel corrector of the F508del-CFTR trafficking defect.Target: CFTRin vitro: Small-molecule correctors such as KM11060 may serve as useful pharmacological tools in studies of the F508del-CFTR processing defect and in the development of cystic fibrosis therapeutics. KM11060 rescues F508del-CFTR trafficking in cultured cells and native epithelial tissues. KM11060 partially corrects F508del-CFTR processing and increases surface expression to 75% of that observed in cells incubated at low temperature. Up to 50% of the F508del-CFTR in cells treated with KM11060 was complex-glycosylated, indicating passage through the Golgi. KM11060 as a promising compound for further development of CF therapeutics. [1]in vivo: In LPS-induced acute lung inflammation, blockade of PSGL-1 (P-selectin glycoprotein ligand-1) or P-selectin, antagonism of PAF by WEB2086, or correction of mutated CFTR trafficking by KM11060 could significantly increase plasma lipoxin A4 levels in F508del relevant to wildtype mice. [2]
GLPG2451 is a cystic fibrosis transmembrane conductance regulator (CFTR) potentiator, which effectively potentiates low temperature rescued F508del CFTR with an EC50 of 11.1 nM[1].
PTI-428 is a specific cystic fibrosis transmembrane conductance regulator (CFTR) amplifier[1].
Kobusin is a bisepoxylignan isolated from the Pnonobio biondii Pamp. Kobusin is an activator of CFTR and CaCCgie chloride channels and a inhibitor of ANO1/CaCC (calcium-activated chloride channel) channel[1][2].
IOWH-032 is a novel and potent CFTR inhibitor (IC50=1.01 uM) in T84 and CHO-CFTR cell based assays.IC50 value: 1.01 uM (CHO-CFTR FLIPR) [1]Target: CFTRProfiling of iOWH032 showed it to be a CFTR inhibitor in T84 and CHO-CFTR cell based assays. It also demonstrated statistical significant inhibition at both 100 g & 10 g doses in the mouse closed-loop model. iOWH032 was further profiled in a cecetomized rat model. iOWH032 reduced the fecal output index by ~70%, compared to vehicle (choleratoxin), up to 8 hours after a single 5 mg/kg po dose.
PG01 is a potent CFTR Cl- channel potentiator. PG01 can correct gating defects of CFTR mutants, is effective on b>E193K, G970R and G551D (CFTR mutants) with Kd values of 0.22 μM, 0.45 μM and 1.94 μM, respectively. PG01 is also effective on ΔF508 (Ka of 0.3 μM). PG01 increases ΔF508-CFTR Cl- current after adding Forskolin[1][2].
SRI-41315 is a small molecule that induces translational readthrough of CFTR nonsense mutations by eRF1 depletion, restores CFTR expression and function, suppresses CFTR nonsense mutations.SRI-41315 induces translational readthrough by depleting eRF1 protein level and prolonging the translational pause that occurs at premature termination codons (PTCs).SRI-41315 reduced eRF1 levels in a manner dependent upon a ubiquitin-mediated proteasome degradation pathway.SRI-41315 in combination with G418 restores CFTR function in primary bronchial epithelial cells derived from a CF patient with CFTR nonsense alleles.
Ivacaftor-d18 is the deuterium labeled Ivacaftor[1]. Ivacaftor (VX-770) is a potent and orally bioavailable CFTR potentiator, targeting G551D-CFTR and F508del-CFTR with EC50s of 100 nM and 25 nM, respectively[2].
GlyH-101 is a cell-permeable glycinyl hydrazone compound that blocks CFTR with Ki of 1.4 uM.IC50 value: 1.4 uM (Ki, at +60 mV) [1]Target: CFTRin vitro: GlyH-101 reversibly inhibited CFTR Cl- conductance in <1 min. Whole-cell current measurements revealed voltage-dependent CFTR block by GlyH-101 with strong inward rectification, producing an increase in apparent inhibitory constant Ki from 1.4 microM at +60 mV to 5.6 microM at -60 mV. GlyH-101 inhibitory potency was independent of pH from 6.5-8.0, where it exists predominantly as a monovalent anion with solubility approximately 1 mM in water[1]. In HeLa cells, these events were associated with a decrease in the rate of oxygen consumption, with GlyH-101 demonstrating a higher potency than CFTR(inh)-172. The impact of CFTR inhibitors on inflammatory parameters was also tested in HeLa cells. CFTR(inh)-172, but not GlyH-101, induced nuclear translocation of nuclear factor-kappaB (NF-kappaB) [2]. GlyH-101 is a glycine hydrazide that has recently been shown to block CFTR channels but its effects on cardiomyocytes are unknown. Here the action of GlyH-101 on cardiac I(Cl.PKA) and on other ion currents has been established. Whole-cell patch-clamp recordings were made from rabbit isolated ventricular myocytes. GlyH-101 blocked I(Cl.PKA) in a concentration- and voltage-dependent fashion (IC(50) at +100 mV=0.3 ± 1.5 μM and at -100 mV=5.1 ± 1.3 μM) [3].in vivo: Topical GlyH-101 (10 microM) in mice rapidly and reversibly inhibited forskolin-induced hyperpolarization in nasal potential differences. In a closed-loop model of cholera, intraluminal GlyH-101 (2.5 microg) reduced by approximately 80% cholera toxin-induced intestinal fluid secretion [1].
Ivacaftor is a potent and orally bioavailable CFTR potentiator, targeting G551D-CFTR and F508del-CFTR with EC50s of 100 nM and 25 nM, respectively.
CFTR corrector 4 (Compound 13), an active (R,R)-form enantiomer, is a highly potent and orally active cystic fibrosis transmembrane conductance regulator (CFTR) corrector. CFTR corrector 4 can increase CFTR levels at the cell surface and have the potential for treatment of cystic fibrosis[1].
Posenacaftor (PTI-801) is a cystic fibrosis transmembrane regulator (CFTR) protein modulator that corrects the folding and trafficking of CFTR protein. Posenacaftor is used for the research of cystic fibrosis (CF)[1].
CFTR corrector 8 is a potent CFTR modulator. CFTR can be used in the research of cystic fibrosis[1].
Dirocaftor (PTI-808) is a CFTR potentiator that enhances the function of CFTR protein by opening chloride channels. Dirocaftor can be used for cystic fibrosis (CF) research[1][2].
BPO-27 racemate is a potent CFTR inhibitor with an IC50 of 8 nM.
(R)-Posenacaftor (R)-PTI-801) sodium is the R enantiomer of Posenacaftor. Posenacaftor is a cystic fibrosis transmembrane regulator (CFTR) protein modulator that corrects the folding and trafficking of CFTR protein. Posenacaftor is used for the research of cystic fibrosis (CF)[1].
Tezacaftor-d4 (VX-661-d4) is the deuterium-labeled Tezacaftor (HY-15448), a F508del CFTR corrector. Tezacaftor helps CFTR protein reach the cell surface[1][2].
GLPG-3221 is a potent, orally active corrector of CFTR (cystic fibrosis transmembrane conductance regulator), with an EC50 of 105 nM. GLPG-3221 can be uesd for the treatment of cystic fibrosis[1].
CFTR corrector 12 (compound 17C) is a bithiazole derivative, serving as CFTR corrector. CFTR corrector 12 has the ability to correct some folding defective mutants of the channel responsible for the control of chloride transport across the plasma membrane. CFTR corrector 12 recovers the α-sarcoglycan (α-SG) content in mutant cells[1].
Crinecerfont (SSR-125543) hydrochloride is a potent, orally active, non-peptide CRF1 receptor antagonist. Crinecerfont can be used for Classic congenital adrenal hyperplasia (CAH) research[1].
Navocaftor, as a cystic fibrosis transmembrane regulator (CFTR), is a protein modulator (US 20200377491 Al, example 1)[1].
CP-628006, a small molecule CFTR potentiator, restores ATP-dependent channel gating to the cystic fibrosis mutant G551D-CFTR.
(R)-Olacaftor ((R)-VX-440) is a Cystic fibrosis transmembrane conductance regulator (CFTR) modulator. (R)-Olacaftor has good potential for the study of cystic fibrosis (CF)[1].