Journal of the Society of Cosmetic Scientists of Korea (대한화장품학회지)

Society of Cosmetic Scientists of Korea (대한화장품학회)
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The Phytoestrogenic Effect of Daidzein in Human Dermal Fibroblasts

피부 섬유아세포에서 다이드제인의 파이토에스트로겐 효과

  • 김미선 ((주)LG생활건강 기술연구원) ;
  • 홍찬영 ((주)LG생활건강 기술연구원) ;
  • 이상화 ((주)LG생활건강 기술연구원)
  • Received : 2014.02.28
  • Accepted : 2014.07.02
  • Published : 2014.09.30
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Abstract

Estrogen deficiency results in a reduction of skin quality and function in postmenopausal women. Over the past decade, many studies have supported that estrogen provides anti-aging effects as a result of the ability of estrogen to prevent skin collagen decline, restore skin elasticity, and increase skin hydration in postmenopausal women skin. Due to their structural similarity with estrogen, isoflavones have been called phytoestrogens. Photoprotective effects of isoflavones are well established while their estrogenic-like activities are not fully understood in human skin. In this study, we investigated whether daidzein, an effective isoflavone, has phytoestrogenic activity and induces transcriptional change of extracellular matrix components in dermal fibroblasts. We examined the luciferase activity of daidzein and ${\beta}$-estradiol using transiently transfected NIH3T3-ERE cells. The estrogenic receptor-dependent transcriptional activity was increased in a dose-dependent manner when treated with daidzein, with a maximum of 2.5-fold induction at $10{\mu}g/mL$ of daidzein compared with non-treated control. In addition, daidzein significantly in creased the expressions of collagen type I, collagen type IV, elastin, and fibrillin-1 in human dermal fibroblasts. By comparing with the effects of ${\beta}$-estradiol through out all the experiments, we confirmed that daidzein had estrogenic activity and function in fibroblasts. These results suggest that daidzein-based application, having both photoprotective and phytoestrogenic effects, may be a powerful approach for skin anti-aging of postmenopausal women.

폐경 이후 여성에서 발생되는 에스트로겐의 감소는 피부노화와 밀접한 관련이 있으며, 피부의 정상적 상태와 기능을 저하시키게 된다. 지난 10여 년간 보고된 많은 연구결과를 살펴보면, 에스트로겐은 폐경 이후 여성의 피부에서 콜라겐 감소를 막아주고, 탄력을 회복시키며, 건조한 피부를 개선시키는 등의 피부 안티에이징 효능을 가지는 것을 알 수 있다. 에스트로겐과 유사한 구조로 인해 파이토에스트로겐이라 알려진 이소플라본은 자외선에 의해 유도된 피부 손상을 보호하는 기작이 널리 알려져 왔으나 피부세포에서 에스트로겐과 유사한 안티에이징 효능을 가지는지에 대해서는 많은 연구가 진행되지 않았다. 이에 본 연구에서는 콩류 등에 많이 함유된 이소플라본인 다이드제인이 에스트로겐과 유사한 활성 및 효능을 가지는지 밝히고자 하였다. 먼저 에스트로겐 수용체와의 결합을 통한 transcriptional activity에 미치는 효과를 luciferase assay를 통해 살펴본 결과, 다이드제인은 대조군에 비해 농도 의존적으로 estrogen receptor-dependent transcriptional activity를 유의하게 증가시켰다. 다음으로 사람의 피부 섬유아세포를 이용하여 다이드제인이 세포외 기질단백질 성분들의 발현에 미치는 효과를 조사한 결과, 다이드제인은 콜라겐 타입 I, 콜라겐 타입 IV, 엘라스틴 및 피브릴린-1의 발현을 유의하게 증가시키는 것을 확인할 수 있었다. 모든 실험조건에서 에스트로겐 단독 효능과의 비교 분석을 통해 다이드제인은 에스트로겐과 유사한 효능을 가진다는 것을 확인할 수 있었다. 본 연구 결과를 통해 다이드제인은 기존에 알려진 이소플라본의 광보호 효능과 더불어 파이토에스트로겐 효능을 가짐으로써 갱년기 여성의 피부 안티에이징을 위해 활용할 수 있을 것이라 제안한다.

Keywords

References

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