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Effect of LG Herbal Medicine Complex (LG-HMC) on Diesel Particulate Matter (DPM) Induced Skin Inflammation and Xenobiotic Response Activity In Vitro

LG-HMC의 미세먼지 유발 염증의 완화와 생체이물대사완화 효과

  • 신재영 (LG 생활건강 기술연구원 기반연구소) ;
  • 김윤선 (LG 생활건강 기술연구원 기반연구소) ;
  • 안영제 (LG 생활건강 기술연구원 기반연구소) ;
  • 강내규 (LG 생활건강 기술연구원 기반연구소) ;
  • 이상화 (LG 생활건강 기술연구원 기반연구소)
  • Received : 2020.03.18
  • Accepted : 2020.03.27
  • Published : 2020.03.30

Abstract

Diesel particulate matter (DPM) induces inflammatory cytokines in HaCaT and stimulates XRE promoter activity through AhR binding. Thus, it increases CYP gene family expression. In this study, we have elucidated inhibitory effect of LG Herbal Medicine Complex (LG-HMC) on DPM-induced XRE promoter activity and inflammatory cytokine expression. First of all, the XRE promoter activity was overexpressed by DPM treatment and the LG-HMC abrogated the XRE promoter activity. Morus alba bark extract, Scutellaria baicalensis root extract and constituents of LG-HMC, were found to be main effecters against DPM induced XRE promoter activation. We also found that DPM treatment elevated inflammatory cytokines in HaCaT and the treatment of LG-HMC, Morus alba bark extract and Scutellaria baicalensis root extract down-regulated the DPM induced inflammatory cytokine expression. Additionally, Morus alba bark extract and Scutellaria baicalensis root extract were found to act as free radical scavengers. In conclusion, we confirmed skin protective effect of LG-HMC and uncovered two components, Morus alba bark extract and Scutellaria baicalensis root extract, that play major role in protecting epidermal kertinocytes from damage.

Diesel particulate matter (DPM)은 피부각질세포에서 염증을 일으킨다. 또 aryl hydrocarbon receptor (AhR)을 통한 xenobiotic response element (XRE) promoter activity에 영향을 주어 cytochromeP (CYP) family의 발현을 촉진시킨다. 이 연구에서는 LG-HMC의 미세먼지 유발 피부 염증완화 및 XRE 발현 조절기능에 대하여 연구를 진행하였다. 먼저, HaCaT에서 DPM이 XRE promoter를 과활성화 시켜주는 것을 확인하였고, 이를 LG-HMC가 완화 시켜주는 것을 확인하였으며 이들 원료 중, 상백피추출물, 황금추출물이 XRE promoter의 과활성화 억제에 관여하는 것을 확인하였다. 이어, HaCaT에서 DPM에 의해 발현이 증가하는 염증성 사이토카인에 대해 LG-HMC 및 상백피추출물, 황금추출물이 염증성 사이토카인의 발현을 줄여주는 것을 확인하였다. 추가적으로 상백피추출물과 황금추출물이 DPPH 라디컬을 효과적으로 줄여줌으로써 미세먼지에 의한 라디컬 손상도 효과적으로 방어할 수 있는 소재임을 확인하였다. 결과적으로 LG-HMC가 미세먼지에 의한 피부염증완화와 피부방어효과를 갖는 것을 확인하였고, LG-HMC를 구성하는 상백피추출물과 황금추출물이 미세먼지에 의한 손상방어에 중요한 역할을 하는 것을 확인하였다.

Keywords

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