Antibacterial and Anti-inflammatory Effects of Medicinal Plants Against Acne-inducing Bacteria

천연 약용식물 추출물의 여드름 원인균에 대한 항균 및 항염증 효과

  • 이응지 (정산생명공학(주) 중앙연구소) ;
  • 배성윤 (정산생명공학(주) 중앙연구소) ;
  • 남궁우 (정산생명공학(주) 중앙연구소) ;
  • 이용화 (정산생명공학(주) 중앙연구소)
  • Received : 2009.12.14
  • Accepted : 2010.02.10
  • Published : 2010.03.30

Abstract

To develop natural therapeutic agents for acne vulgaris, we investigated antibacterial and anti-inflammatory effects of various medicinal plant extracts. Among candidate extracts, we selected Psoralea corylifolia L. extract (AC-1) and Magnoliae officinalis extract (AC-2) which showed the relatively high antibacterial effects, and Inula helenium L. extract (ACF-1) and Chrysanthemum zawadskii var. latilobum extract (ACF-2) which showed the relatively high anti-inflammatory effects for further investigations. All of them did not show cytotoxic effects below the concentration of $50{\mu}g/mL$. The antibacterial effects of AC-1, AC-2 and extract complex (AC) against P. acnes were 2.8, 2.5 and 3.2 times higher than that of 10 % salicylic acid respectively. And the antibacterial effect of AC-2 and extract complex against S. aureus were 1.4 and 1.5 times higher than that of 10 % methylparaben respectively. Also, it was shown that ACF-1, ACF-2 and extract complex had anti-inflammatory effects. All of them exhibited inhibitory effects for the secretion of IL-8 and TNF-$\alpha$ from THP-1 cells activated by heat-killed P. acnes. They reduced about 27 %, 38 %, 44 % of IL-8 secretion and 90 %, 88 %, 90 % of TNF-$\alpha$ secretion at concentration of $50{\mu}g/mL$ respectively. These results showed that the complex of medicinal plant extracts, AC-1. AC-2, ACF-1, and ACF-2, had therapeutic effects to acne vulgaris through antibacterial and anti-inflammatory effects. Therefore, we suggest that extract complex of AC-1, AC-2, ACF-1 and ACF-2 may be used as a useful agent for development of natural cosmetics which have therapeutic effects to acne vulgaris.

여드름 완화 효과를 갖는 천연 약용식물 추출물을 개발하기 위하여 여드름 원인균에 대한 항균 활성 및 항염증 효과를 다양한 추출물을 대상으로 분석하였다. 검색 결과 얻어진 후보 소재들 중, 비교적 높은 항균 활성을 갖는 보골지, 당후박과 항염증 효과를 갖는 목향, 구절초 추출물을 대상으로 선정하였고 이후의 실험을 진행하였다. 보골지 (Psoralea corylifolia L., AC-1), 당후박(Magnoliae officinalis. AC-2) 목향(Inula helenium L., ACF-1), 구절초(Chrysanthemum zawadskii var. latilobum, ACF-2) 추출물 및 복합소재 (AC)는 $50{\mu}g/mL$ 이하에서 세포 독성이 없는 것으로 확인되었다. 보골지, 당후박 추출물 및 복합소재의 경우 여드름 유발 원인균인 Propionibacterium acnes (P. acnes)에 대해 양성대조군으로 사용한 10 % salicylic acid 대비 각각 약 2.8배, 2.5배, 3.2배의 높은 항균 효과를 보였다. 또한 Staphylococcus aureus (S. aureus) 에 대해서도 당후박 추출물과 복합소재의 경우 양성 대조군으로 사용한 10 % Methylparaben 대비 각각 약 1.4배, 1.5배 높은 항균 효과를 보였다. 목향 구절초 추출물 및 복합소재의 경우 열에 의해 사멸시킨 P. acnes에 의해 활성화된 THP-1 세포의 IL-8 발현을 $50{\mu}g/mL$ 농도에서 각각 27%. 38%, 44% 저해하였고 TNF-$\alpha$ 발현을 $50{\mu}g/mL$ 농도에서 각각 90%, 88%, 90%로 크게 저해하였다. 이러한 항균, 항염증 활성을 보이는 보골지, 당후박, 목향, 구절초 추출물의 복합 소재를 이용하여 여드름 완화 효과를 갖는 화장품으로의 개발이 가능할 것으로 보인다.

Keywords

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