Y-27632 is an orally active, ATP-competitive inhibitor of ROCK-I and ROCK-II, with Kis of 220 and 300 nM, respectively. Y-27632 attenuates Doxorubicin-induced apoptosis of human cardiac stem cells. Y-27632 also suppresses dissociation-induced apoptosis of murine prostate stem/progenitor cells. Y-27632 primes human induced pluripotent stem cells (hIPSCs) to selectively differentiate towards mesendodermal lineage via epithelial-mesenchymal transition-like modulation.
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Y-27632 Chemical Structure
CAS No. : 146986-50-7
This product is a controlled substance and not for sale in your territory.
Based on 287 publication(s) in Google Scholar
Other Forms of Y-27632:
Y-27632 dihydrochloride
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Y-27632 hydrochloride hydrate
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Y-27632 dihydrochloride (GMP)
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Y-27632 dihydrochloride (Standard)
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Y-27632 purchased from MedChemExpress. Usage Cited in:
Adv Sci (Weinh). 2020 Jun 17;7(15):1903583.
[Abstract]
Expression of CTC cluster-related (plakoglobin and CD44) and EMT-related (vimentin and E-cadherin, 4 days) proteins in LNCaP cells grown on different substrates after treatment with different inhibitors (Cytoskeleton B (CB), Nocodazole (NO), PF-573288 (PF), Y-27632 (Y), and (-)-Blebbistatin ((-) Bl)).
Y-27632 purchased from MedChemExpress. Usage Cited in:
Adv Sci (Weinh). 2020 Jun 17;7(15):1903583.
[Abstract]
Immunofluorescence imaging of LNCaP cells treated with the Cytoskeleton B (CB), Nocodazole (NO), PF-573288 (PF), Y-27632 (Y), and (-)-Blebbistatin ((-) Bl). After the cells are cultured on different substrates for 3 days, inhibitors are added and incubated for 24 h.
Y-27632 purchased from MedChemExpress. Usage Cited in:
J Exp Clin Cancer Res. 2018 Jun 28;37(1):128.
[Abstract]
MHCC-97H and Huh-7 cells co-transfected with control or supervillin-specific siRNA and a RhoA(WT), RhoA(V14), or RhoA(N19) plasmids for 48 h are treated with PBS or Y27632 2HCl (10 μM) for 16 h during hypoxia, and then assayed for phosphorylated p38 and ERK by immunoblotting. β-actin is used as the loading control
SKOV3 mock-transfected control (Ctrl) and shRNA-Hic-5 knockdown (KD) (sh-S1 and sh-S2) cells were either untreated (-) or treated (+) with 10mM Y27632 over a period of 48 hr. SKOV3 mock-transfected control (Ctrl) and shRNA-Hic-5 knockdown (KD) (sh-S1 and sh-S2) clones were either untreated (-) or treated (+) with 10 mM Y27632 followed by stimulation without (-) or with (+) 5 ng/mL of TGFβ1 for 48 hr.
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ROCK ROCK1 ROCK2
Description
Y-27632 is an orally active, ATP-competitive inhibitor of ROCK-I and ROCK-II, with Kis of 220 and 300 nM, respectively. Y-27632 attenuates Doxorubicin-induced apoptosis of human cardiac stem cells. Y-27632 also suppresses dissociation-induced apoptosis of murine prostate stem/progenitor cells. Y-27632 primes human induced pluripotent stem cells (hIPSCs) to selectively differentiate towards mesendodermal lineage via epithelial-mesenchymal transition-like modulation[1][2][3][4][5][6][7].
IC50 & Target[1]
ROCK-I
220 nM (Ki)
ROCK-II
300 nM (Ki)
PKN
3.1 μM (Ki)
Citron kinase
5.3 μM (Ki)
PKCα
73 μM (Ki)
PKA
25 μM (Ki)
Cellular Effect
Cell Line
Type
Value
Description
References
A7R5
EC50
200 nM
Compound: Y-27632
Inhibition of ROCK in rat A7r5 cells assessed as inhibition of MLC phosphorylation by direct ELISA
Inhibition of ROCK in rat A7r5 cells assessed as inhibition of MLC phosphorylation by direct ELISA
[PMID: 24119557]
A7R5
EC50
630 nM
Compound: Y-27632
Inhibition of ROCK-catalysed MLC Thr18/Ser19 phosphorylation in rat A7r5 cells after 90 mins by ELISA
Inhibition of ROCK-catalysed MLC Thr18/Ser19 phosphorylation in rat A7r5 cells after 90 mins by ELISA
[PMID: 25898023]
PC-3
IC50
28 μM
Compound: Y-27632
Antimetastatic activity against human PC3 cells after 24 hrs by scratch wound assay
Antimetastatic activity against human PC3 cells after 24 hrs by scratch wound assay
[PMID: 23707258]
Sf9
IC50
150 nM
Compound: Y-27632
Inhibition of human recombinant N-terminal his-tagged ROCK1 (3-543) expressed in baculovirus infected Sf9 cells using Biotin-Ahx-AKRRLSSLRA-CONH2 substrate and [gamma-33P]ATP after 90 mins by scintillation proximity assay
Inhibition of human recombinant N-terminal his-tagged ROCK1 (3-543) expressed in baculovirus infected Sf9 cells using Biotin-Ahx-AKRRLSSLRA-CONH2 substrate and [gamma-33P]ATP after 90 mins by scintillation proximity assay
[PMID: 17018693]
In Vitro
Y-27632 inhibits the ROCK family of kinases 100 times more potently than other kinases including protein kinase C, cAMP-dependent kinase and myosin light chain kinase. Y-27632 prolongs the lag time and delays the appearance of BrdU-labeled cells in a concentration-dependent manner, delays of about 1 and 4 h are noticed in the Swiss 3T3 cells treated with 10 and 100 μM Y-27632, respectively[1].
Y-27632 promotes neuronal differentiation of adipose tissue-derived stem cells (ADSCs). Compared to 1.0 and 2.5 μM Y-27632 induced groups, percentages of neuroal-like cells achieved a peak in the 5.0 μM Y-27632 induced group[2].
Extracellular matrix (ECM) molecules decreases apoptosis markers and inhibiting the ROCK pathway blocks ECM stimulated actin cortical mat reformation and increases apoptosis in embryonic corneal epithelial cells[8].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Y-27632 Related Antibodies
In Vivo
Y-27632 (5 and 10 mg/kg) significantly prolongs the onset time of myoclonic jerks when compare with saline group. Y-27632 (5 and 10 mg/kg) significantly prolongs the onset time of clonic convulsions when compare with saline group[3]. Treatment with Dimethylnitrosamine (DMN) causes a significant decrease in rat body and liver weight (DMN-S group) compared with control animals (S-S group). Oral Y27632 (30 mg/kg) essentially prevents this DMN-induced rat body and liver weight loss (DMN-Y group)[4].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Molecular Weight
247.34
Formula
C14H21N3O
CAS No.
146986-50-7
Appearance
Solid
Color
White to off-white
SMILES
O=C([C@@H]1CC[C@]([C@H](N)C)(06)CC1)NC2=CC=NC=C2
Shipping
Room temperature in continental US; may vary elsewhere.
Storage
-20°C, protect from light, stored under nitrogen
*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)
Solvent & Solubility
In Vitro:
DMSO : 25 mg/mL (101.07 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Preparing Stock Solutions
ConcentrationSolventMass
1 mg
5 mg
10 mg
1 mM
4.0430 mL
20.2149 mL
40.4299 mL
5 mM
0.8086 mL
4.0430 mL
8.0860 mL
10 mM
0.4043 mL
2.0215 mL
4.0430 mL
View the Complete Stock Solution Preparation Table
*Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles. Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day. The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μLDMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Protocol 2
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Taking 1 mL working solution as an example, add 100 μLDMSO stock solution (25.0 mg/mL) to 900 μLCorn oil, and mix evenly.
For the following dissolution methods, please prepare the working solution directly.
It is recommended to prepare fresh solutions and use them promptly within a short period of time. The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution.
If precipitation or phase separation occurs during preparation,
heat and/or sonication can be used to aid dissolution.
Protocol 1
Add each solvent one by one: Saline
Solubility: 2 mg/mL (8.09 mM); Clear solution; Need ultrasonic and warming and heat to 60°C
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:
Dosage
mg/kg
Animal weight (per animal)
g
Dosing volume (per animal)
μL
Number of animals
Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO+
%
+
%
Tween-80
+
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO,
. All of co-solvents are available by MedChemExpress (MCE).
, Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration:
mg/mL
Method for preparing stock solution:
mg
drug dissolved in
μL
DMSO (Stock solution concentration: mg/mL).
*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take
μL DMSO stock solution, add
μL .
μL , mix evenly, next add
μL Tween 80, mix evenly, then add
μL Saline.
Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution
If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
[1]. Ishizaki T, et al. Pharmacological properties of Y-27632, a specific inhibitor of rho-associated kinases. Mol Pharmacol. 2000 May;57(5):976-83.
[Content Brief]
[2]. Xue ZW, et al. Rho-associated coiled kinase inhibitor Y-27632 promotes neuronal-like differentiation of adult human adipose tissue-derived stem cells.Chin Med J (Engl). 2012 Sep;125(18):3332-5.
[Content Brief]
[3]. Tada S, et al. A selective ROCK inhibitor, Y27632, prevents dimethylnitrosamine-induced hepatic fibrosis in rats. J Hepatol. 2001 Apr;34(4):529-36.
[Content Brief]
[4]. Inan S, et al. Antiepileptic effects of two Rho-kinase inhibitors, Y-27632 and fasudil, in mice. Br J Pharmacol. 2008 Sep;155(1):44-51.
[Content Brief]
[5]. Maldonado M, et al. ROCK inhibitor primes human induced pluripotent stem cells to selectively differentiate towardsmesendodermal lineage via epithelial-mesenchymal transition-like modulation. Stem Cell Res. 2016 Sep;17(2):222-227.
[Content Brief]
[6]. Kan L, et al. Rho-Associated Kinase Inhibitor (Y-27632) Attenuates Doxorubicin-Induced Apoptosis of Human Cardiac Stem Cells. PLoS One. 2015;10(12):e0144513. Published 2015 Dec 8.
[Content Brief]
[7]. Zhang L, et al. ROCK inhibitor Y-27632 suppresses dissociation-induced apoptosis of murine prostate stem/progenitor cells and increases their cloning efficiency. PLoS One. 2011;6(3):e18271. Published 2011 Mar 28.
[Content Brief]
[8]. Svoboda KK, et al. ROCK inhibitor (Y27632) increases apoptosis and disrupts the actin cortical mat in embryonic avian corneal epithelium. Dev Dyn. 2004;229(3):579-590.
[Content Brief]
Kinase Assay
[1]
Recombinant ROCK-I, ROCK-II, PKN, or citron kinase is expressed in HeLa cells as Myc-tagged proteins by transfection using Lipofectamine, and is precipitated from the cell lysates by the use of 9E10 monoclonal anti-Myc antibody coupled to G protein-Sepharose. Recovered immunocomplexes are incubated with various concentrations of [32P]ATP and 10 mg of histone type 2 as substrates in the absence or presence of various concentrations of either Y-27632 or Y-30141 at 30°C for 30 min in a total volume of 30 μL of the kinase buffer containing 50 mM HEPES-NaOH, pH 7.4, 10 mM MgCl2, 5 mM MnCl2, 0.02% Briji 35, and 2 mM dithiothreitol. PKCa is incubated with 5 μM [32P]ATP and 200 μg/mL histone type 2 as substrates in the absence or presence of various concentrations of either Y-27632 or Y-30141 at 30°C for 10 min in a kinase buffer containing 50 mM Tris-HCl, pH 7.5, 0.5 mM CaCl2, 5 mM magnesium acetate, 25 μg/mL phosphatidyl serine, 50 ng/mL 12-O-tetradecanoylphorbol-13-acetate and 0.001% leupeptin in a total volume of 30 μL. Incubation is terminated by the addition of 10 μL of 43 Laemmli sample buffer. After boiling for 5 min, the mixture is subjected to SDS-polyacrylamide gel electrophoresis on a 16% gel. The gel is stained with Coomassie Brilliant Blue, and then dried. The bands corresponding to histone type 2 are excised, and the radioactivity is measured[1].
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Cell Assay
[1]
HeLa cells are plated at a density of 3×104 cells per 3.5-cm dish. The cells are cultured in DMEM containing 10% FBS in the presence of 10 mM Thymidine for 16 h. After the cells are washed with DMEM containing 10% FBS, they are cultured for an additional 8 h, and then 40 ng/mL of Nocodazole is added. After 11.5 h of the Nocodazole treatment, various concentrations of Y-27632 (0-300 μM), Y-30141, or vehicle is added and the cells are incubated for another 30 min[1].
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[3][4]
Mice[3] Male, inbred Swiss albino mice (2-3 months old) weighing 25-30 g are used. Mice are injected with a sub-convulsive dose of PTZ (35 mg/kg, i.p.) (on Mondays, Wednesdays and Fridays) of each week for a total of 11 injections. After each PTZ injection, mice are observed for 30 min and the occurrence of convulsive activity is recorded. After 30 min, the mice are then injected with either Fasudil (25 mg/kg, i.p.) or Y-27632 (5 mg/kg, i.p.) and returned to their home cages until the next injection. Control mice for Fasudil and Y-27632 receives saline. Rats[4] Male Wistar Kind A rats (200-250 g) are used. DMN (1 g/mL) is diluted ten times with saline (final concentration 1%) and 10 mg/kg per day of DMN is injected intraperitoneally (i.p.) on the first 3 days of each week for 4 weeks. Y27632 is given orally once per day at a dose of 30 mg/kg for 4 weeks starting on the day of the first injection of DMN. The dose of 30 mg/kg corrects hypertension in several rat models without toxicity. Twenty rats are randomized into four experimental groups (n=5 in each group) as follows: (1) S-S (injection of saline i.p. and oral administration of saline); (2) S-Y (injection of saline i.p. and oral administration of Y27632); (3) DMN-S (DMN i.p. and oral administration of saline); (4) DMN-Y (DMN i.p. and oral administration of Y27632). The rats are weighed every week. They are sacrificed at the end of the fourth week and the liver is excised. In addition, a blood sample is taken immediately before the rats are sacrificed.
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
References
[1]. Ishizaki T, et al. Pharmacological properties of Y-27632, a specific inhibitor of rho-associated kinases. Mol Pharmacol. 2000 May;57(5):976-83.
[Content Brief]
[2]. Xue ZW, et al. Rho-associated coiled kinase inhibitor Y-27632 promotes neuronal-like differentiation of adult human adipose tissue-derived stem cells.Chin Med J (Engl). 2012 Sep;125(18):3332-5.
[Content Brief]
[3]. Tada S, et al. A selective ROCK inhibitor, Y27632, prevents dimethylnitrosamine-induced hepatic fibrosis in rats. J Hepatol. 2001 Apr;34(4):529-36.
[Content Brief]
[4]. Inan S, et al. Antiepileptic effects of two Rho-kinase inhibitors, Y-27632 and fasudil, in mice. Br J Pharmacol. 2008 Sep;155(1):44-51.
[Content Brief]
[5]. Maldonado M, et al. ROCK inhibitor primes human induced pluripotent stem cells to selectively differentiate towardsmesendodermal lineage via epithelial-mesenchymal transition-like modulation. Stem Cell Res. 2016 Sep;17(2):222-227.
[Content Brief]
[6]. Kan L, et al. Rho-Associated Kinase Inhibitor (Y-27632) Attenuates Doxorubicin-Induced Apoptosis of Human Cardiac Stem Cells. PLoS One. 2015;10(12):e0144513. Published 2015 Dec 8.
[Content Brief]
[7]. Zhang L, et al. ROCK inhibitor Y-27632 suppresses dissociation-induced apoptosis of murine prostate stem/progenitor cells and increases their cloning efficiency. PLoS One. 2011;6(3):e18271. Published 2011 Mar 28.
[Content Brief]
[8]. Svoboda KK, et al. ROCK inhibitor (Y27632) increases apoptosis and disrupts the actin cortical mat in embryonic avian corneal epithelium. Dev Dyn. 2004;229(3):579-590.
[Content Brief]
[1]. Ishizaki T, et al. Pharmacological properties of Y-27632, a specific inhibitor of rho-associated kinases. Mol Pharmacol. 2000 May;57(5):976-83.
[2]. Xue ZW, et al. Rho-associated coiled kinase inhibitor Y-27632 promotes neuronal-like differentiation of adult human adipose tissue-derived stem cells.Chin Med J (Engl). 2012 Sep;125(18):3332-5.
[3]. Tada S, et al. A selective ROCK inhibitor, Y27632, prevents dimethylnitrosamine-induced hepatic fibrosis in rats. J Hepatol. 2001 Apr;34(4):529-36.
[4]. Inan S, et al. Antiepileptic effects of two Rho-kinase inhibitors, Y-27632 and fasudil, in mice. Br J Pharmacol. 2008 Sep;155(1):44-51.
[5]. Maldonado M, et al. ROCK inhibitor primes human induced pluripotent stem cells to selectively differentiate towardsmesendodermal lineage via epithelial-mesenchymal transition-like modulation. Stem Cell Res. 2016 Sep;17(2):222-227.
[6]. Kan L, et al. Rho-Associated Kinase Inhibitor (Y-27632) Attenuates Doxorubicin-Induced Apoptosis of Human Cardiac Stem Cells. PLoS One. 2015;10(12):e0144513. Published 2015 Dec 8.
[7]. Zhang L, et al. ROCK inhibitor Y-27632 suppresses dissociation-induced apoptosis of murine prostate stem/progenitor cells and increases their cloning efficiency. PLoS One. 2011;6(3):e18271. Published 2011 Mar 28.
[8]. Svoboda KK, et al. ROCK inhibitor (Y27632) increases apoptosis and disrupts the actin cortical mat in embryonic avian corneal epithelium. Dev Dyn. 2004;229(3):579-590.
Complete Stock Solution Preparation Table
*Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles. Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.
Keywords:
Y-27632146986-50-7Y27632Y 27632OrganoidROCKApoptosisRho-associated protein kinaseRho-associated kinaseRho-kinaseROKInhibitorinhibitorinhibit
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