Sambutoxin, a new mycotoxin produced by toxic Fusarium isolates obtained from rotted potato tubers, it can cause toxic effects in rats, including body weight loss, feed refusal, hemorrhage in the stomach and intestines, and, finally, death when rats were
Aglafoline inhibits in a concentration-dependent manner the aggregation and ATPrelease reaction induced in washed rabbit platelets by PAF (platelet-activating factor). The IC50 values of Aglafoline on PAF (3.6 nM)-induced platelet aggregation were about 50 μM.
Dibutyryl-cGMP sodium (Bt2cGMP sodium) is a cell-permeable cGMP analog. Dibutyryl-cGMP sodium preferentially activates cGMP-dependent protein kinase (PKG). Dibutyryl-cGMP sodium inhibits [3H]-arachidonic acid release in human platelets stimulated by gamma
Ganglioside GM1 asialo is a component of cellular lipid rafts and can be formed by the cleavage of the sialic acid residue from ganglioside GM1 by neuraminidase. Ganglioside GM1 asialo is a glycolipid receptor for P. aeruginosa flagellin and stimulates defensive responses in host cells, including extracellular ATPrelease, calcium mobilization, and ERK1/2 phosphorylation when stimulated by flagellin and an anti-ganglioside GM1 asialo antibody. The percentage of ganglioside GM1 asialo-positive natural killer (NK) and CD8+ T cells in lung is increased in a mouse model of respiratory syncytial virus (RSV) infection compared with healthy animals. Depletion of ganglioside GM1 asialo-positive NK and T cells reduces IFN-γ levels in the lung, reduces weight loss, and increases lung viral load in RSV-infected mice. Ganglioside GM1 asialo mixture contains ganglioside GM1 asialo molecular species with C18:1 and C20:1 sphingoid backbones.
ITH15004 is a non-nucleotide antagonist of the purinergic P2X7receptor (IC50= 9 μM in HEK293 cells expressing the human receptor).1It inhibits ATP-induced currents inX. laevisoocytes expressing the human P2X7receptor when used at a concentration of 100 μM. ITH15004 (1 μM) decreases IL-1β release from LPS-primed, ATP-stimulated isolated mouse peritoneal macrophages. It has high permeability in a parallel artificial membrane permeability assay (PAMPA). 1.Calzaferri, F., Narros-Fernández, P., de Pascual, R., et al.Synthesis and pharmacological evaluation of novel non-nucleotide purine derivatives as P2X7 antagonists for the treatment of neuroinflammationJ. Med. Chem.64(4)2272-2290(2021)
JC-171 is a selective NLRP3 inflammasome inhibitor, with an IC50 of 8.45 μM for inhibiting LPS ATP-induced interleukin-1β (IL-1β) release from J774A.1 macrophages[1]. JC-171 (0-100 μM) blocks NLRP3 inflammasome activation and IL-1β production in primary macrophages dose dependently[1]. Cell Viability Assay[1] Cell Line: J774A.1 murine macrophage cells JC-171 treatment delays the progression and reduces the severity of experimental autoimmune encephalomyelitis (EAE) in mouse[1]. Animal Model: Mice immunized subcutaneously with 200 μg Myelin oligodendrocyte glycoprotein (MOG) 35-55 peptide emulsified in Complete Freund's Adjuvant (CFA) on day 0 followed by injection of 200 ng of pertussis toxin. [1]. Chunqing Guo, et al. Development and Characterization of a Hydroxyl-Sulfonamide Analogue, 5-Chloro-N-[2-(4-hydroxysulfamoyl-phenyl)-ethyl]-2-methoxy-benzamide, as a Novel NLRP3 Inflammasome Inhibitor for Potential Treatment of Multiple Sclerosis. ACS Chem Neurosci. 2017 Oct 18;8(10):2194-2201.
Potent NLRP3 inflammasome inhibitor (IC50 = 60-80 nM). Inhibits nigericin- and ATP-induced IL-1β release. Baldwin et al (2017) Boron-Based Inhibitors of the NLRP3 Inflammasome. Cell Chem.Biol. 24 1321 PMID:28943355 |Redondo-Castro et al (2018) Development of a characterised tool kit for the interrogation of NLRP3 inflammasome-dependent responses. Sci.Rep. 8 5667 PMID:29618797
TAT-Gap19(I130A) is a control peptide for TAT-Gap19, a Cx43 hemichannel blocker. TAT-Gap19(I130A) consists of TAT-GAP19 with a I130A amino acid residue change at a key residue for GAP19 activity. In C6 glioma cells expression Cx43, TAT-GAP19(1130A) does not inhibit [Ca2+]i-triggered ATPrelease at 200 μM. TAT-Gap19(I130A) is cell permeable.
AZ-DF 265 is a hypoglycaemic drug which stimulates insulin release. AZ-DF-265 inhibits ATP-sensitive potassium channels and displaces [3H]-glibenclamide from the sulphonylurea receptor.
GSK1370319A is a potent P2X7 antagonist (IC50 = 3.2 nM). GSK1370319A inhibits ATP-induced increase in IL-1β release and caspase 1 activation in lipopolysaccharide (LPS)-primed mixed glia by blocking assembly of the inflammasome in a pannexin 1-dependent manner. GSK1370319A also inhibits ATP-induced subregion-specific neuronal loss in hippocampal organotypic slice cultures, which is dependent on its ability to prevent inflammasome assembly in glia. Significantly, GSK1370319A attenuates age-related deficits in long-term potentiation (LTP) and inhibits the accompanying age-related caspase 1 activity. We conclude that inhibiting P2X(7) receptor-activated NLRP3 inflammasome formation and the consequent IL-1β release from glia preserve neuronal viability and synaptic activity.