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NJK14047 is a drug which acts as a selective inhibitor of the enzyme p38 mitogen-activated protein kinase (p38 MAPK). It has antiviral and antiinflammatory effects and was originally developed as a potential treatment for inflammatory lung conditions such as influenza.
It is a highly selective inhibitor of both MEK1 and MEK2, a type of MAPK/ERK kinase. [ 10 ] [ 11 ] U0126 was found to functionally antagonize AP-1 transcriptional activity via noncompetitive inhibition of the dual specificity kinase MEK with IC 50 of 72 nM for MEK1 and 58 nM for MEK2.
Losmapimod (GW856553X) is an investigational drug that reached stage III clinical trials for multiple medical conditions, but did not prove efficacy. It was most recently in development by Fulcrum Therapeutics for the treatment of facioscapulohumeral muscular dystrophy (FSHD).
A MEK inhibitor is a chemical or drug that inhibits the mitogen-activated protein kinase enzymes MEK1 and/or MEK2. They can be used to affect the MAPK/ERK pathway which is often overactive in some cancers. (See MAPK/ERK pathway#Clinical significance.)
The first drug licensed to act on this pathway is sorafenib — a Raf kinase inhibitor. Other Raf inhibitors include SB590885, PLX4720, XL281, RAF265, encorafenib, dabrafenib, and vemurafenib. [18] Some MEK inhibitors include cobimetinib, CI-1040, PD0325901, binimetinib (MEK162), selumetinib, [18] and trametinib (GSK1120212) [20]
Mitogen-activated protein kinase kinase (also known as MAP2K, MEK, MAPKK) is a dual-specificity kinase enzyme which phosphorylates mitogen-activated protein kinase (MAPK). MAP2K is classified as EC 2.7.12.2. There are seven genes: MAP2K1 (a.k.a. MEK1) MAP2K2 (a.k.a. MEK2) MAP2K3 (a.k.a. MKK3) MAP2K4 (a.k.a. MKK4) MAP2K5 (a.k.a. MKK5) MAP2K6 (a ...
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Ralimetinib (LY2228820) is a small molecule experimental cancer drug in development by Eli Lilly.Although originally thought to be a p38 mitogen-activated protein kinase (MAPK) inhibitor, [1] it has since been reported that it acts instead as an epidermal growth factor receptor (EGFR) inhibitor.