FK706 is a slow-binding and competitive human neutrophil elastase inhibitor (IC50: 83 nM; Ki: 4.2 nM). FK706 also inhibits mouse neutrophil elastase and porcine pancreatic elastase (IC50s: 22 nM and 100 nM, respectively). FK706 has an anti-inflammatory ef
ONO-0300302 is a slow tight binding LPA1 antagonist (IC50: 0.16 nM) used to treat Benign Prostatic Hyperplasia. ONO-0300302 inhibits significantly an LPA-induced increase of intraurethral pressure (IUP) in rat (3 mg kg, p.o.) and dog (1 mg kg, p.o.) over
SL-25.1188 is a monoamine oxidase B (MAO-B) inhibitor. SL-25.1188 is characterized by reversible binding, high brain uptake, and very slow plasma metabolism in vivo.
UR-2922 is an oral antagonist of platelet GPIIb IIIa. UR-2922 possessed a high affinity for the human platelet receptor (K(d) <1 nM) and a slow dissociation rate (k(off)= 90 min) in vitro. UR-2922 induced no ligand-induced binding sites (LIBS) expression
11-trans Leukotriene C4 (11-trans LTC4) is a C-11 double bond isomer of LTC4. LTC4 undergoes slow temperature-dependent isomerization to 11-trans LTC4 during storage. 11-trans LTC4 is produced in smaller amounts relative to LTC4 in ionophore-stimulated HMC-1 cells (a human mast cell line) and equine eosinophils, but not in human neutrophils or RBL-1 cells. It is nearly equipotent with LTC4 for contraction of guinea pig parenchymal and ileum. In a radioligand binding assay using guinea pig ileum as a cysteinyl leukotriene receptor preparation, the pKis for LTC4 and 11-trans LTC4 were determined to be 6.42 and 6.58, respectively.
RO-5328673 is a dual NK2 NK3 antagonist. O5328673. [(3)H]RO5328673 bound to a single saturable site on hNK2, hNK3 and gpNK3 with high-affinity. RO5328673 acted as an insurmountable antagonist at both human and guinea-pig NK3 receptors in the [(3)H]IP accumulation assay. In binding kinetic analyses, [(3)H]RO5328673 had fast association and dissociation rates at hNK2 while it had a fast association rate and a remarkably slow dissociation rate at gp and hNK3. In electrophysiological recordings of gp SNpc, RO5328673 inhibited the senktide-induced potentiation of spontaneous activity of dopaminergic neurons with an insurmountable mechanism of action. RO5328673 exhibited in-vivo activity in gerbils, robustly reversing the senktide-induced locomotor activity.
Oxocarbazate, also known as CID23631927, is an inhibitor of human cathepsin L. In the cathepsin L inhibition assay, The oxocarbazate caused a time-dependent 17-fold drop in IC50 from 6.9 nM (no preincubation) to 0.4 nM (4-h preincubation). Slowly reversible inhibition was demonstrated in a dilution assay. CID23631927 demonstrate activity in blocking both SARS-CoV (IC50 = 273 nM) and Ebola virus (IC50 = 193 nM) entry into human embryonic. CID 23631927 was a subnanomolar, slow-binding, reversible inhibitor of human cathepsin L that blocked SARS-CoV and Ebola pseudotype virus entry in human cells. Inhibition of cathepsin L thus holds promise for therapeutic intervention for both SARS-CoV and Ebola virus infection.
1400W is a slow, tight-binding, and highly selective inducible nitric-oxide synthase (iNOS) inhibitor, with a K_d value ≤ 7 nM. 1400W inhibits iNOS induction in microglial cells and reduces the generation of NO, thereby mitigating oxidative stress and neuronal cell apoptosis in the rat cerebral cortex, and improving spatial memory dysfunction caused by acute hypobaric hypoxia-reoxygenation [1] [2].