ATP site-targeting, potent and selective MEK5 inhibitor with in vivo efficacy in murine models of atherosclerosis, cancer, and diabetes.
BIX02189 is an ATP site-targeting, potent and selective MEK5 inhibitor (IC50 =1.5 nM, [ATP] = 750 nM) with much reduced or no potency against 79 other kinases (CSF1R (FMS)/ERK5/Lck/Jak3/TGFβR1/RPS6KA6 (RSK4) IC50 = 46/59/250/440/580/990 nM, MEK1/MEK2/ERK2/JNK2/EGFR/STK16 IC50 >6.2 μM). BIX02189 blocks cellular ERK5, but not ERK1/2 or p38, phosphorylation induction (IC50 <1 μM in sorbitol-stimulated HeLa), as well as downstream MEF2C transcriptional activation (IC50 = 0.53/0.26 μM, MEK5/ERK5/MEF2C HeLa/HEK293 reporter cells). BIX02189 in vivo efficacies are demonstrated in murine models of atherosclerosis, cancer, and diabetes (10-20 mg/kg i.p.).
Diabetic retinopathy (DR) is a major complication of diabetes, and causes pathological changes in retina blood vessels, as the most common cause of vision loss. Extracellular-signal-regulated kinase 5 (ERK5) is the newest discovered member in the mitogen-activated protein kinases (MAPKs)
Transforming growth factor-β1 (TGF-β1) promotes tumor metastasis by inducing an epithelial-to-mesenchymal transition (EMT) in cancer cells. In this study, we investigated the effects of BIX02189 and XMD8-92, pharmacologic inhibitors of the MEK5 [mitogen-activated protein kinase/extracellular-signal-regulated kinase (ERK)5] signaling pathway, on
Streptozotocin (STZ)-induced murine models of type 1 diabetes have been used to examine ER stress during pancreatic β-cell apoptosis, as this ER stress plays important roles in the pathogenesis and development of the disease. However, the mechanisms linking type 1
Extracellular signal-regulated protein kinase 5 (ERK5) has been implicated during development and carcinogenesis. Nkx3.1-mediated Cre expression is a useful strategy to genetically manipulate the mouse prostate. While grossly normal at birth, we observed an unexpected phenotype of spinal protrusion in
Biochemical and biophysical research communications, 377(1), 120-125 (2008-10-07)
We have identified two novel MEK5 inhibitors, BIX02188 and BIX02189, which inhibited catalytic function of purified, MEK5 enzyme. The MEK5 inhibitors blocked phosphorylation of ERK5, without affecting phosphorylation of ERK1/2 in sorbitol-stimulated HeLa cells. The compounds also inhibited transcriptional activation
Il team dei nostri ricercatori vanta grande esperienza in tutte le aree della ricerca quali Life Science, scienza dei materiali, sintesi chimica, cromatografia, discipline analitiche, ecc..