Bioactivity | SB-747651A dihydrochloride is an ATP-competitive mitogen- and stress-activated kinase 1 (MSK1) inhibitor with an IC50 of 11 nM. SB-747651A dihydrochloride also inhibits PRK2, RSK1, p70S6K and ROCK-II. SB-747651A dihydrochloride can be used for inflammation research[1]. |
Target | IC50: 11 nM (MSK1) |
Invitro | SB-747651A dihydrochloride (5 μM; neutrophils) affects CXCL2-induced intraluminal crawling of neutrophils in a Mac-1-dependent manner. SB-747651A dihydrochloride thwarts the intraluminal crawling of adherent neutrophils to optimal sites of emigration. SB-747651A dihydrochloride (5 μM; neutrophils) significantly increases transmigration time and detachment time. SB-747651A dihydrochloride affects mechanisms that regulate transendothelial migration of neutrophils in response to CXCL2 chemotactic gradient. SB-747651A dihydrochloride inhibits the migration speed of extravascular chemotaxing neutrophils but does not affect their directionality in response to CXCL2 chemotactic gradient[2]. |
In Vivo | SB747651A (3 mg/kg; intrascrotal injection) dihydrochloride results in increased neutrophil adhesion 3.5~4.5 hours following stimulation with CXCL2 as compared to the effect of CXCL2[3].SB-747651A (3 mg/kg; i.p.) dihydrochloride affects neutrophil extravasation by increasing neutrophil emigration only at 3 and 4 hours in mouse peritonitis model of acute inflammation[3]. Animal Model: |
Name | SB-747651A dihydrochloride |
CAS | 1781882-72-1 |
Formula | C16H24Cl2N8O |
Molar Mass | 415.32 |
Appearance | Solid |
Transport | Room temperature in continental US; may vary elsewhere. |
Storage | 4°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
Reference | [1]. Shaista Naqvi, et al. Characterization of the cellular action of the MSK inhibitor SB-747651A. Biochem J. 2012 Jan 1;441(1):347-57. [2]. Feiner B, et al. Risperidone effects on heterochromatin: the role of kinase signaling. Clin Exp Immunol. 2019;196(1):67-75. [3]. Hossain M, et al. The Specific Mitogen- and Stress-Activated Protein Kinase MSK1 Inhibitor SB-747651A Modulates Chemokine-Induced Neutrophil Recruitment. Int J Mol Sci. 2017;18(10):2163. Published 2017 Oct 17. |