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
Haginin A is an effective inhibitor of hyperpigmentation caused by UV irradiation or by pigmented skin disorders through downregulation via ERK and Akt/PKB activation, MITF, and also by the subsequent downregulation of tyrosinase and TRP-1 production. Hag
Luteolin 7-sulfate, derived from the marine plant Phyllospadix iwatensis Makino, suppresses TYR gene expression by intervening in a signaling pathway involving the cAMP-responsive element binding protein (CREB) and microphthalmia-associated transcription factor (MITF). This inhibition ultimately leads to a decrease in melanin synthesis.