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Medchemexpress/(-)-Blebbistatin(同义词:(S)-(-)-Blebbistatin)/HY-13441/50mg
Description | (-)-BlebbistatinisanSenantiomerofblebbistatin.BlebbistatinisapotentandselectivemyosinIIinhibitorwithIC50valuesrangingfrom0.5to5μM. |
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IC50&Target | IC50:0.5to5μM(myosinII)[1] |
InVitro | BlebbistatinpotentlyinhibitsseveralstriatedmusclemyosinsaswellasvertebratenonmusclemyosinIIAandIIBwithIC50valuesrangingfrom0.5to5μM.Smoothmusclemyosinisonlypoorlyinhibited(IC50=80μM)[1].Blebbistatindoesnotcompetewithnucleotidebindingtotheskeletalmusclemyosinsubfragment-1.TheinhibitorpreferentiallybindstotheATPaseintermediatewithADPandphosphateboundattheactivesite,anditslowsdownphosphaterelease.Itblocksthemyosinheadsinaproductscomplexwithlowactinaffinity[2].Inculture-activatedhepaticstellatecells,blebbistatinisfoundtochangebothcellmorphologyandfunction.Stellatecellsbecomesmaller,acquireadendriticmorphologyandhavelessmyosinIIA-containingstressfibresandvinculin-containingfocaladhesions.Blebbistatinimpairssiliconewrinkleformation,reducescollagengelcontractionandblocksendothelin-1-inducedintracellularCa2+release.Itpromoteswound-inducedcellmigration[3]. |
InVivo | Blebbistatindose-dependentlyandcompletelyrelaxbothKCl-andcarbachol-inducedratdetrusorandendothelin-1-inducedhumanbladdercontraction.Pre-incubationwith10μMblebbistatinattenuatescarbacholresponsivenessby65%whileblockingelectricalfieldstimulation-inducedbladdercontractionreaching50%inhibitionat32Hz[4]. |
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CellAssay [3] | FreshlyisolatedHSCsarereplatedon96-wellplate.Atday3,mediumisreplacedbyserum-freemediumandcellsarestarvedovernight,treatedwithorwithoutblebbistatin(25μM)for2hfollowedbystimulationwithplatelet-derivedgrowthfactor-BB(20ng/mL).Afteranovernightincubation,theWST-1cellproliferationassayareperformed[3].MCEhasnotindependentlyconfirmedtheaccuracyofthesemethods.Theyareforreferenceonly. References |
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