erk5-in-2

ERK5-IN-2 是具有口服活性，亚微摩尔效力，选择性ERK5抑制剂，对ERK5和ERK5 MEF2D 的IC50s 分别是 0.82 和 3 μM。它抑制肿瘤异种移植生长和碱性成纤维细胞生长因子驱动的基质胶塞血管生成。

SKLB-D18 是一种高效、选择性的 ERK1/2 和 ERK5 抑制剂，其 IC50 值分别为 38.69、40.12 和 59.72 nM。作为自噬 (autophagy) 激动剂，SKLB-D18 在 mTOR/p70S6K 和 NCOA4 介导的铁死亡 (ferroptosis) 中发挥作用，可能缓解多药耐药性。SKLB-D18 在体外和体内对抗三阴性乳腺癌 (TNBC) 展示了卓越的疗效。

Tpl2 kinase inhibitor is an inhibitor of tumor progression locus 2 (Tpl2; IC50= 0.05 μM).1It is selective for Tpl2 over MEK, p38 MAPK, Src, MK2, and PKC (IC50s = >40, 180, >400, 110, and >400 μM, respectively). Tpl2 kinase inhibitor inhibits LPS-induced TNF-α production in isolated human monocytes and whole blood (IC50s = 0.7 and 8.5 μM, respectively). It enhances differentiation induced by calcitriol in HL-60 and U937 leukemia cells when used at a concentration of 5 μM.2Tpl2 kinase inhibitor (5 μM) inhibits the proliferation of KG-1a leukemia cells.3 1.Garvin, L.K., Green, N., Hu, Y., et al.Inhibition of Tpl2 kinase and TNF-α production with 1,7-naphthyridine-3-carbonitriles: Synthesis and structure-activity relationshipsBioor. Med. Chem. Lett.15(23)5288-5292(2005) 2.Wang, X., and Studzinski, G.P.Expression of MAP3 kinase COT1 is up-regulated by 1,25-dihydroxyvitamin D3 in parallel with activated c-jun during differentiation of human myeloid leukemia cellsJ. Steroid. Biochem. Mol. Biol.121(1-2)395-398(2010) 3.Wang, X., Gocek, E., Novik, V., et al.Inhibition of Cot1/Tlp2 oncogene in AML cells reduces ERK5 activation and up-regulates p27Kip1 concomitant with enhancement of differentiation and cell cycle arrest induced by silibinin and 1,25-dihydroxyvitamin D3Cell Cycle9(22)4542-4551(2010)

ADTL-EI1712 is a dual inhibitor of ERK1 and ERK5 (IC50s = 40.43 and 64.5 nM, respectively).1It reduces ERK1 and ERK5 activity by 93.5% and 89.4%, respectively, but also inhibits ERK2 activity by 92.7%, in a panel of 100 kinases at 1 μM. ADTL-EI1712 inhibits proliferation of HL-60 and MKN74, but not HeLa, cancer cells (IC50s = 1.26, 2.55, and >50 μM, respectively). It reduces tumor growth and intratumor phosphorylation of ERK1/2 and ERK5 in an MKN74 mouse xenograft model when administered at a dose of 50 mg/kg per day. 1.Wang, G., Zhao, Y., Liu, Y., et al.Discovery of a novel dual-target inhibitor of ERK1 and ERK5 that induces regulated cell death to overcome compensatory mechanism in specific tumor typesJ. Med. Chem.63(8)3976-3995(2020)