Panax ginseng extract antagonizes the effect of DKK‑1-induced catagen-like changes of hair follicles
- Yonghee Lee
- Su Na Kim
- Yong Deog Hong
- Byung Cheol Park
- Yongjoo Na
Affiliations: Amorepacific R&D Center, Yongin-si, Gyeonggi-do 446-729, Republic of Korea, Department of Dermatology, Dankook Medical College, Cheonan, Chungcheongnam-do 31116, Republic of Korea
- Published online on: August 25, 2017 https://doi.org/10.3892/ijmm.2017.3107
Copyright: © Lee
et al. This is an open access article distributed under the
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It is well known that Panax ginseng (PG) has various pharmacological effects such as anti-aging and anti-inflammation. In a previous study, the authors identified that PG extract induced hair growth by means of a mechanism similar to that of minoxidil. In the present study, the inhibitory effect of PG extract on Dickkopf-1 (DKK-1)-induced catagen-like changes in hair follicles (HFs) was investigated in addition to the underlying mechanism of action. The effects of PG extract on cell proliferation, anti-apoptotic effect, and hair growth were observed using cultured outer root sheath (ORS) keratinocytes and human HFs with or without DKK-1 treatment. The PG extract significantly stimulated proliferation and inhibited apoptosis, respectively, in ORS keratinocytes. PG extract treatment affected the expression of apoptosis-related genes Bcl-2 and Bax. DKK-1 inhibited hair growth, and PG extract dramatically reversed the effect of DKK-1 on ex vivo human hair organ culture. PG extract antagonizes DKK-1-induced catagen-like changes, in part, through the regulation of apoptosis-related gene expression in HFs. These findings suggested that PG extract may reduce hair loss despite the presence of DKK-1, a strong catagen inducer via apoptosis.