p38α inhibitor 2

p38α inhibitor 2 is a highly potent and selective p38α MAPK inhibitor, with a pIC50 of 9.6. p38α inhibitor 2 inhibits the hERG ion channel (IC50=27 μM) and shows a promising selectivity profile when tested in a panel of 51 other protein kinases (<30% inhibition at 10 μM concentration) and a panel of 141 other biological targets[1]. [1]. Raubo P, et al. The discovery and evaluation of 3-amino-2(1H)-pyrazinones as a novel series of selective p38α MAP kinase inhibitors [published online ahead of print, 2020 Jul 15]. Bioorg Med Chem Lett. 2020;30(18):127412.

Losmapimod (GSK-AHAB) 是一种可口服的特异性 p38 MAPK 抑制剂，抑制 p38α 和 p38β 的 pKi 值分别为 8.1 和 7.6。

AMG-548 is an orally active and selective p38α inhibitor (Ki=0.5 nM), shows slightly selective over p38β (Ki=36 nM) and >1000 fold selective against p38γ and p38δ and is also extremely potent in the inhibition of whole blood LPS stimulated TNFα (IC50=3 nM

Ralimetinib selectively inhibits phosphorylation of MK2 (Thr334) and has no effect on phosphorylation of p38α MAPK, JNK, ERK1 2, c-Jun, ATF2, or c-Myc. Ralimetinib is an effective and selective, ATP-competitive inhibitor of p38 MAPK α β (IC50s: 5.3 and 3.

WH-4-023 (Dual LCK SRC inhibitor) 是选择性Lck 和Src 抑制剂，它们的 IC50 分别为 2 nM、6 nM，对p38α 和 KDR 作用效果稍弱。

NG 25 is a type II kinase inhibitor that inhibits MAP4K2 and TAK1 (IC50s = 21.7 and 149 nM, respectively).1It also inhibits the Src family kinases Src and LYN (IC50s = 113 and 12.9 nM, respectively) and Abl family kinases (IC50s = 75.2 nM), as well as CSK, FER, and p38α (IC50s = 56.4, 82.3, and 102 nM, respectively). NG 25 (100 nM) prevents TNF-α-induced IKKα/β phosphorylation and IκB-α degradation in L929 cells. It inhibits secretion of IFN-α and IFN-β induced by CpG type B and CL097, respectively, in Gen2.2 cells in a concentration-dependent manner.2NG 25 decreases cell viability of HCT116KRASWT, and to a greater degree of HCT116KRASG13D, colorectal cancer cells in a concentration-dependent manner.3It also reduces tumor growth and increases the number of TUNEL-positive tumor cells in a CT26KRASG12Dmouse orthotopic model of colorectal cancer. 1.Tan, L., Nomanbhoy, T., Gurbani, D., et al.Discovery of type II inhibitors of TGFβ-activated kinase 1 (TAK1) and mitogen-activated protein kinase kinase kinase kinase 2 (MAP4K2)J. Med. Chem.58(1)183-196(2015) 2.Pauls, E., Shpiro, N., Peggie, M., et al.Essential role for IKKβ in production of type 1 interferons by plasmacytoid dendritic cellsJ. Biol. Chem. 287(23)19216-19228(2012) 3.Ma, Q., Gu, L., Liao, S., et al.NG25, a novel inhibitor of TAK1, suppresses KRAS-mutant colorectal cancer growth in vitro and in vivoApoptosis24(1-2)83-94(2019)

Zunsemetinib (ATI-450) 是一种具有口服活性和选择性的 p38α 丝裂原激活蛋白激酶激活蛋白激酶2 (MK2)通路抑制剂。Zunsemetinib 可用于研究脊柱关节炎和类风湿性关节炎。

AS1940477 is p38 MAPK inhibitor. AS1940477 inhibited the enzymatic activity of recombinant p38α and β isoforms but showed no effect against other 100 protein kinases including p38γ and δ isoforms. In human peripheral blood mononuclear cells, AS1940477 inhibited lipopolysaccharide (LPS)- or phytohemagglutinin A (PHA)-induced production of proinflammatory cytokines, including TNFα, IL-1β, and IL-6 at low concentrations (LPS TNFα, IC(50)=0.45n M; PHA TNFα, IC(50)=0.40 nM). In addition, equivalent concentrations of AS1940477 that inhibited cytokine production also inhibited TNFα- and IL-1 β-induced production of IL-6, PGE(2), and MMP-3 in human synovial stromal cells. AS1940477 was also found to potently inhibit TNF production in whole blood (IC(50)=12 nM) and effectively inhibited TNFα production induced by systemically administered LPS in rats at less than 0.1mg kg (ED(50)=0.053 mg kg) with an anti-inflammatory effect lasting for 20h after oral administration. Overall, this stu......

AMG-47a 是具有口服活性的 Lck 抑制剂，IC50值为 0.2 nM。它具有抗炎作用，对 VEGF2、p38α、p38α、Jak3、MLR 和 IL-2的 IC50值分别为 1、3、72、30 和 21 nM。

Anti-inflammatory agent 33，一种有效的p38α抑制剂，抑制NO产生，并抑制LPS诱导的iNOS、COX-2、p-p38α、p-MK2蛋白表达，具有抗炎活性。

(aS)-PH-797804是一种选择性p38 MAPK抑制剂，其对p38 α β的IC50值为26 nM和102 nM，表现出抗炎活性。

ERK2 p38α MAPK-IN-1 (Compound 1, In silico Hit-2) 表现为一种对ERK2和p38αMAPK具有高效和选择性的抑制作用，其中对ERK2的抑制半最大浓度（IC50）为82 μM。该化合物通过与ERK2和p38αMAPK的构象位点不同地结合来实现其抑制效果。ERK2 p38α MAPK-IN-1 主要用于2型糖尿病相关的生物医学研究。