Noroxyhydrastinine exhibits potent melanogenesis-inhibitory activities, it inhibits melanogenesis, at least in part, by inhibiting the expression of protein levels of tyrosinase, TRP-1, and TRP-2 in α-MSH-stimulated B16 melanoma cells.
Manassantin A is a high potent HIF-1 inhibitor, it protects the gastric mucosa from ethanol-induced acute gastric injury, and suggest that these protective effects might be associated with COX PGE2 stimulation, inhibition of iNOS production and NF-κB act
[D-Trp11]-Neurotensin is a compound that functions as a selective antagonist of Neurotensin (NT) in perfused rat hearts, while exhibiting full agonist properties in guinea pig atria and rat stomach strips. Additionally, this compound can inhibit hypotension induced by NT.
GSK 2833503A is a potent and selective TRPC6 and TRPC3 antagonist (IC50 = 3-16 nM and 21-100 nM, respectively). GSK 2833503A exhibits >63-fold selectivity over other ion channels, including other TRP channels, CaV1.2, hERG and NaV1.5. GSK 2833503A suppresses angiotensin II or endothelin-1-induced cardiac hypertrophy signaling in HEK293 cellsin vitroand in cardiomyocytes.
Cyclo(L-Leu-L-Trp) is a diketopiperazine metabolite initially derived from Penicillium, exhibiting antibacterial (MICs = 125-1000 µg/ml) and antifungal activities (MICs = 8-64 µg/ml). It also demonstrates antioxidant properties by reducing the production of hydroxy radicals, as evidenced in an electron spin resonance (ESR) spectroscopy assay (IC50 = 1.8 µM). Additionally, Cyclo(L-Leu-L-Trp) has been identified as a bitter compound capable of quickly crossing rat taste cell membranes ex vivo at a 1 mM concentration. Furthermore, it acts as a melatonin receptor agonist in X. laevis melanophores, suppressing cAMP accumulation at a 20 µM concentration, with this effect being negated by the melatonin receptor antagonist luzindole.