Molecular Weight(MW): 320.26
Y-27632 2HCl is a selective ROCK1 (p160ROCK) inhibitor with Ki of 140 nM in a cell-free assay, exhibits >200-fold selectivity over other kinases, including PKC, cAMP-dependent protein kinase, MLCK and PAK.
Cited by 45 Publications
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The ROCK inhibitors fasudil and Y27632 prevented SCP2 cell bone metastasis in nude mice (n = 10 per group). Shown are BLI images of bone metastases, IHC analyses of SMAD3 C-tail phosphorylation and PTHLH, osteoclast TRAP staining, and BLI quantitation.
J Clin Invest, 2014, 124(4): 1646-59. Y-27632 2HCl purchased from Selleck.
The Rho GTPase-JNK pathway is required for the inhibitory effects of vandetanib on Calu-6 cells invasion. Calu-6 cells were incubated for 24 h in the presence or absence of vandetanib (1 or 2 uM), SP600125 (50 or 100 uM), and Y27632 (5 or 10 uM). The morphology of the Calu-6 cells was examined under a light microscope. Scale bar: 50 um.
Mol Neurobiol 2015 10.1007/s12035-014-9084-z. Y-27632 2HCl purchased from Selleck.
Effect of mechanical strain on cell morphology. (A) SEM analyses indicate that strain-induced cell elongation is prevented by treatment with HA1100 and Y27632. (B) Quantification of cellular area in the indicated conditions (n = 20). (C) F-actin staining of control, strained and HA1100 or Y27632-treated cells attests that inhibition of RhoA/ROCK prevents mechanical strain-induced cell elongation. *p < 0.05 compared to control without strain (CTL).
J Mol Cell Cardiol 2014 67, 49-59. Y-27632 2HCl purchased from Selleck.
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2. For more details, such as half maximal inhibitory concentrations (IC50s) and working concentrations of each inhibitor, please click on the link of the inhibitor of interest.
3. "+" indicates inhibitory effect. Increased inhibition is marked by a higher "+" designation.
4. Orange "√" refers to compounds which do inhibitory effects on the related isoform, but without specific value.
|Description||Y-27632 2HCl is a selective ROCK1 (p160ROCK) inhibitor with Ki of 140 nM in a cell-free assay, exhibits >200-fold selectivity over other kinases, including PKC, cAMP-dependent protein kinase, MLCK and PAK.|
Y-27632 2HCl inhibits ROCK-II while displaying little activity against PKC, cAMP-dependent protein kinase and myosin light-chain kinase (MLCK) with Ki of 26 μM, 25 μM and > 250 μM, respectively, as well as PKA activated by another Rho-family GTPase member, Cdc42. Y-27632 2HCl inhibits smooth-muscle contraction induces by various agonists including phenylephrine, histamine, acetylcholine, serotonin, endothelin, and thromboxane with IC50 of 0.3-1 μM, by selectively inhibiting Ca2+ sensitization. Y-27632 2HCl suppresses Rho-induced, p160ROCK-mediated formation of stress fibres in cultured cells.  Y-27632 2HCl treatment blocks both Rho-mediated activation of actomyosin and LPA-stimulated invasive activity of MM1 cells in a concentration-dependent manner.  Y-27632 2HCl treatment is not only sufficient to initiate formation of exuberant axonal processes but also facilitates axonal maturation during the very early stages of axonogenesis, while largely sparing axon elongation.  In human embryonic stem (hES) cells, Y-27632 2HCl treatment at 10 μM markedly diminishes dissociation-induced apoptosis even in serum-free suspension (SFEB) culture, increases cloning efficiency (from ~1% to ~27%), facilitates subcloning after gene transfer, and enables SFEB-cultured hES cells to survive and differentiate into Bf1+ cortical and basal telencephalic progenitors. 
|In vivo||Oral administration of Y-27632 2HCl at 30 mg/kg significantly decreases the blood pressure in a dose-dependent manner in spontaneous hypertensive rats, renal hypertensive rats, as well as deoxycorticosterone acetate (DOCA)-salt hypertensive rats.  When Y-27632 2HCl is continuously administered at a rate of 0.55 μL per hour by implanted pumps for 11 days tumor cell invasion (MM1 cells expressing Val14-RhoA in rats) is significantly delayed.  By inhibiting ROCK, Y-27632 2HCl treatment attenuates hypoxia-induced angiogenesis and vascular remodeling in the pulmonary circulation.  Pretreatment with Y-27632 has a protective effect against tumor formation in albino mice with Ehrlich ascites carcinoma. |
|Animal Research: ||
-  Uehata M, et al. Nature, 1997, 389(6654), 990-994.
-  Itoh K, et al. Nat Med, 1999, 5(2), 221-225.
-  Bito H, et al. Neuron, 2000, 26(2), 431-441.
|In vitro||DMSO||64 mg/mL (199.83 mM) warming|
|Water||14 mg/mL (43.71 mM)|
|In vivo||Saline||30 mg/mL|
* 1 mg/ml means slightly soluble or insoluble.
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