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논문 기본 정보

자료유형
학술저널
저자정보
Eui Jeong Nam (COSMAXNBT) Gyhye Yoo (Korea Institute of Science and Technology (KIST) Gangneung Institute) Joo Young Lee (Korea Institute of Science and Technology (KIST) Gangneung Institute) Myungsuk Kim (Korea Institute of Science and Technology (KIST) Gangneung Institute) Changho Jhin (Korea Institute of Science and Technology (KIST) Gangneung Institute) Yang-Ju Son (Korea Institute of Science and Technology (KIST) Gangneung Institute) Sun Young Kim (Korea Institute of Science and Technology (KIST) Gangneung Institute) Sang Hoon Jung (Korea Institute of Science and Technology (KIST) Gangneung Institute) 노주원 (한국과학기술연구원)
저널정보
대한생화학·분자생물학회 BMB Reports BMB Reports 제53권 제7호
발행연도
2020.1
수록면
379 - 384 (6page)

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Exposure to Ultraviolet (UV) light induces photoaging of skin, leading to wrinkles and sunburn. The perennial herb Humulus japonicus, widely distributed in Asia, is known to have antiinflammatory, antimicrobial, and antioxidant effects. However, the physiological activities of isolated compounds from H. japonicus have rarely been investigated. This study focused on the isolation of active compounds from H. japonicus and the evaluation of their effects on photoaging in UVB-irradiated human fibroblast (Hs68) cells. When the extract and four fractions of H. japonicus were treated respectively in UVB-irradiated Hs68 cells to investigate anti-photoaging effects, the ethyl acetate (EtOAc) fraction showed the strongest inhibitory effect on MMP- 1 secretion. From EtOAc fraction, we isolated luteolin-8-C-glucoside (1), apigenin-8-C-glucoside (2), and luteolin-7-O-glucoside (3). These compounds suppressed UVB-induced MMP-1 production by inhibiting the phosphorylation of the mitogen-activated protein kinases (MAPKs) and activator protein-1 (AP-1). When the antioxidant activity of the compounds were estimated by conducting western blot, calculating the bond dissociation energies of the O-H bond (BDE) at different grade, and measuring radical scavenging activity, we found luteolin-8-C-glucoside (1) showed the strongest activity on the suppression of UVB-induced photoaging. These results demonstrate the inhibitory effect of three flavone glycosides derived from H. japonicus on MMP-1 production, MAPK and AP-1 signaling, and oxidative stress; this could prove useful in suppressing UVB induced photoaging.

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