skmel-2

Picrocrocin is a natural product

(-)-Epigallocatechin Gallate (EGCG) is a phenolic antioxidant polyphenol flavonoid found in plants such as green and black tea, which inhibits telomerase and DNA methyltransferase, blocks the activation of EGF receptors and HER-2 receptors, inhibits cellular oxidation, and prevents free radical damage to cells.

Isoliquiritigenin (ISL) is a flavonoid natural product that inhibits influenza virus replication (EC50=24.7 μM) and aldose reductase activity (IC50=320 nM). Isoliquiritigenin has antitumor activity.

Nicotinamide, a vitamin B3 derivative, is an inhibitor of SIRT1 (IC50=50-180 μM) and SIRT2 (IC50=2 μM). Nicotinamide can be used as a precursor of nicotinamide adenine dinucleotide or NAD+, which can be supplemented by dietary intake and can prevent or treat melanoglossia and pellagra.

Capsaicin is an active natural component found in chili peppers and acts as a TRPV1 agonist (EC50 = 0.29 μM). It possesses multiple activities, including pain relief, antitumor, anti-inflammatory, antioxidant, and neuroprotective effects, as well as some neurotoxicity. Capsaicin can be used to establish itch models.

4,4'-Dihydroxy-3,3',9-trimethoxy-9,9'-epoxylignan exhibits cytotoxic activities against four tumor cell lines (A549, SK-OV-3, SKMEL-2, and HCT15).