FPS-ZM1 is a high-affinity, RAGE-specific inhibitor that obstructs Aβ binding to the V domain of RAGE.

RAGE:25 nM. (Ki)

FPS-ZM1 blocks Aβ binding to the V domain of RAGE and inhibited Aβ40- and Aβ42-induced cellular stress in RAGE-expressing cells in vitro. It blocks binding of other ligands to RAGE as well, such as S100B, AGE, and HMGB1, which have been suggested to contribute to RAGE-mediated long-term tissue damage in models of diabetes, immune/inflammatory disorders, and AD[1].

FPS-ZM1 is nontoxic to mice and readily crossed the blood-brain barrier (BBB).It effectively controls progression of an Aβ-mediated brain disorder and the related neurovascular and cognitive dysfunction in 17-month-old APPsw/0 mice with fully developed Aβ and amyloid pathology by blocking RAGE actions at the BBB and in brain. Also, FPS-ZM1 blocks RAGE-dependent BACE1 expression and activity in brain of 17-month-old APPsw/0 mice[1].

Human sRAGE is immobilized (10 μg/mL) overnight at 4°C in 96-well microtiter plates and blocked with 3% bovine serum albumin. 125I-labeled Aβ40, HMGB1, or S100B at 5 nM in the absence and presence of various concentrations of FPS2 or FPS-ZM1 (10 to 1,000 nM) is added to the wells containing immobilized sRAGE and incubated for 1 hour at room temperature in PBS. Wells are washed with cold PBS to remove unbound radiolabeled ligands, and the radioactivity is analyzed[1].

CHO cells are treated for 72 hours with different concentrations of inhibitors ranging from 10 nM to 10 μM. The cellular toxicity was determined using the WST-8 Assay Kit. (Only for Reference)