Zunsemetinib

**Semantic type:** Pharmacologic Substance

**Definition:** An orally bioavailable, small molecule inhibitor of mitogen-activated protein (MAP) kinase-activated protein kinase 2 (MAPKAPK2; MK2), with potential anti-inflammatory activity. Upon oral administration, zunsemetinib targets and binds to the p38MAPK-MK2 complex, thereby inhibiting the p38MAPK phosphorylation and activation of MK2. This inhibits p38MAPK/MK2-mediated inflammatory signaling pathway. This may result in the inhibition of the production of proinflammatory cytokines, including tumor necrosis factor-alpha (TNF-alpha), interleukin (IL)-1-alpha, IL-1-beta and IL-6.

**Synonyms:** - ATI 450 - ATI-450 - ATI450 - CDD-450 - ZUNSEMETINIB