Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Effects of Curcuma longa L. Extracts on Natural Killer Cells and T Cells

울금 주정 추출물이 자연살해세포와 T 면역세포에 미치는 영향

  • Ha, Yejin (Department of Medical Nutrition, Kyung Hee University) ;
  • Kim, Ok-Kyung (Department of Medical Nutrition, Kyung Hee University) ;
  • Nam, Da-Eun (Department of Medical Nutrition, Kyung Hee University) ;
  • Kim, Yongjae (Korea INSPharm Research Institute) ;
  • Kim, Eun (Korea INSPharm Research Institute) ;
  • Jun, Woojin (Department of Food and Nutrition, Chonnam National University) ;
  • Lee, Jeongmin (Department of Medical Nutrition, Kyung Hee University)
  • 하예진 (경희대학교 의학영양학과) ;
  • 김옥경 (경희대학교 의학영양학과) ;
  • 남다은 (경희대학교 의학영양학과) ;
  • 김용재 (한국인스팜(주) 중앙연구소) ;
  • 김은 (한국인스팜(주) 중앙연구소) ;
  • 전우진 (전남대학교 식품영양학과) ;
  • 이정민 (경희대학교 의학영양학과)
  • Received : 2014.11.03
  • Accepted : 2015.02.13
  • Published : 2015.03.31
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Abstract

The present study investigated the immunomodulatory effects of Curcuma longa L. ethanol extracts on natural killer (NK) cells and T cells. We treated Curcuma longa L. ethanol extracts at concentrations of 20, 50, 100, and $150{\mu}g/mL$ to murine NK cells co-incubated with YAC-1 cells. Curcuma longa L. ethanol extracts resulted in increased NK cell activity compared to the control group at all concentrations. In the groups treated with Curcuma longa L. ethanol extracts, CD69 and IFN-${\gamma}$ expression levels significantly increased compared to the control group at 100 and $150{\mu}g/mL$. In addition, Curcuma longa L. ethanol extracts induced significant elevation of CD8+ T cell numbers in a dose-dependent manner. However, Curcuma longa L. ethanol extracts also led to reduction of CD4+ T cell and MHCII numbers. The findings of this study suggest that Curcuma longa L. ethanol extracts could enhance the immune response through activation of NK and cytotoxic T cells due to a proliferative shift of antigen presentation from MHCII to MHCI, presumably.

본 연구에서는 국내에서 재배되는 울금의 면역조절 효과에 대해 평가하고자 20% 주정 추출물을 이용하여 자연살해세포와 T 세포에 미치는 영향을 관찰하였다. 마우스의 비장세포에서 분리한 자연살해세포를 종양세포 YAC-1 세포와 함께 배양시켜 울금 20% 주정 추출물의 처리에 따른 변화를 관찰하였다. 그 결과 울금 20% 주정 추출물의 처리는 자연 살해세포의 CD69 발현과 IFN-${\gamma}$의 발현을 증가시켰고 결과적으로 활성이 증가되어 YAC-1 세포의 제거를 증가시켰음을 확인하였다. 또한 마우스의 비장세포에서 울금 20% 주정 추출물의 처리에 따른 T 세포의 변화를 관찰한 결과에서는 CD4+ T 세포보다는 CD8+ T 세포를 증가시켰음을 확인하여 감염된 세포나 종양세포 제거를 효과적으로 할 수 있을 것이라고 예상할 수 있었다. 결론적으로 울금 20% 주정 추출물은 내재면역과 적응면역에 영향을 미쳐 면역조절에 긍정적인 변화를 보였음을 확인하였다.

Keywords

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