Formulation: A solid
Formal Name: 2-[3-[1-(2-nitrophenyl)-1H-pyrrol-2-yl]-2-propen-1-ylidene]-hydrazinecarboximidamide, acetate
Purity: ≥95%
Formula Markup: C14H14N6O2 • C2H4O2
Formula Weight: 358,4
Shelf life (days): 1460
CAS Number: 959850-74-9
Notes: AP1189 is a biased agonist of melanocortin receptor 1 (MC1R) and MC3R.{68414} It induces ERK1 and ERK2 phosphorylation but not canonical cAMP production in HEK293 cells expressing human MC1R or MC3R when used at concentrations ranging from 10 pM to 1 mM. AP1189 (0.1-10 nM) reduces zymosan-induced IL-1β, IL-6, and TNF-α production in primary peritoneal macrophages isolated from wild-type but not Mc3r-/- mice. It reduces zymosan-induced TNF-α production but has no effect on IL-1β or IL-6 production in primary macrophages isolated from Mc1r-/- mice. AP1189 promotes efferocytosis in primary mouse macrophages. In vivo, AP1189 (1, 3, and 10 mg/kg) reduces peritoneal neutrophil infiltration in a mouse model of zymosan-induced acute peritonitis. AP1189 (50 mg/kg) reduces paw volume, the number of paws affected, and disease severity in a mouse model of arthritogenic serum-induced arthritis.
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