Afzelin 具有多种细胞活性，例如 DNA 保护、抗菌、抗氧化和抗炎以及 UV 吸收活性，并且可以通过 UV 吸收和细胞活性的组合保护人体皮肤免受 UVB 引起的损伤。 Afzelin 减轻线粒体损伤，增强线粒体生物合成并降低线粒体自噬相关蛋白、parkin 和 putative kinase 1 的水平。

Afzelin has several cellular activities such as DNA-protective, antibacterial, antioxidant, and anti-inflammatory as well as UV-absorbing activity and may protect human skin from UVB-induced damage by a combination of UV-absorbing and cellular activities. Afzelin attenuates the mitochondrial damage, enhances mitochondrial biogenesis and decreases the level of mitophagy-related proteins, parkin and PTEN-induced putative kinase 1.

Therefore, in this study, we investigated the protective effects of Afzelin, one of the flavonoids, against UV irradiation in human keratinocytes and epidermal equivalent models. Spectrophotometric measurements revealed that the Afzelin extinction maxima were in the UVB and UVA range, and UV transmission below 376 nm was<10%, indicating UV-absorbing activity of Afzelin. In the phototoxicity assay using the 3T3 NRU phototoxicity test (3T3-NRU-PT), Afzelin presented a tendency to no phototoxic potential. In addition, in order to investigate cellular functions of Afzelin itself, cells were treated with Afzelin after UVB irradiation. In human keratinocyte, Afzelin effectively inhibited the UVB-mediated increase in lipid peroxidation and the formation of cyclobutane pyrimidine dimers. Afzelin also inhibited UVB-induced cell death in human keratinocytes by inhibiting intrinsic apoptotic signaling. Furthermore, Afzelin showed inhibitory effects on UVB-induced release of pro-inflammatory mediators such as interleukin-6, tumor necrosis factor-α±, and prostaglandin-E2 in human keratinocytes by interfering with the p38 kinase pathway. Using an epidermal equivalent model exposed to UVB radiation, anti-apoptotic activity of Afzelin was also confirmed together with a photoprotective effect at the morphological level[1]

482-39-3

C21H20O10

432.38

Kaempferol-3-O-rhamnoside;阿福豆苷

Ethanol:12 mg/mL (27.75 mM),Need ultrasonic
Powder: -20°C for 3 years
In solvent: -80°C for 2 years