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.