Photoprotective properties of 20(S)-protopanaxatriol, an aglycone of ginseng saponins: Protection from ultraviolet-B radiation-induced oxidative stress in human epidermal keratinocytes | Zendy

Sun-Joo Oh | Zendy; Kyunghoon Kim | Zendy; ChangJin Lim | Zendy

Open Access

Photoprotective properties of 20(S)-protopanaxatriol, an aglycone of ginseng saponins: Protection from ultraviolet-B radiation-induced oxidative stress in human epidermal keratinocytes

Author(s) -

Sun-Joo Oh,

Kyunghoon Kim,

ChangJin Lim

Publication year - 2016

Publication title -

molecular medicine reports

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.727

H-Index - 56

eISSN - 1791-3004

pISSN - 1791-2997

DOI - 10.3892/mmr.2016.5581

Subject(s) - hacat , ginseng , aglycone , oxidative stress , protopanaxadiol , chemistry , reactive oxygen species , ginsenoside , glutathione , biochemistry , pharmacology , biology , stereochemistry , glycoside , enzyme , medicine , alternative medicine , pathology , in vitro

Ginsenosides are responsible for diverse pharmacological properties ascribed to ginseng, a plant used in traditional medicine. Ginsenosides are classified into three categories: Protopanaxadiol, protopanaxatriol (PPT) and oleanolic acid. As an aglycone of PPT-type ginsenosides, PPT exists in two stereoisomeric forms, 20(S)-PPT and 20(R)‑PPT. The 20(S)‑PPT stereoisomer is a major metabolic product of PPT‑type ginsenosides produced in the gastrointestinal tract. In the present study, 20(S)-PPT suppressed the elevation of reactive oxygen species in HaCaT cells following irradiation with ultraviolet (UV)‑B. In addition, 20(S)‑PPT inhibited UV‑B‑induced gelatinase activities of matrix metalloproteinase-2 and -9 in HaCaT cells, and suppressed UV‑B‑induced expression and secretion of these proteins. Accordingly, 20(S)‑PPT restored the total glutathione levels in UV‑B‑irradiated keratinocytes. Taken together, these data indicated that 20(S)‑PPT may possess photoprotective properties that combat the effects of UV‑B radiation.

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