Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Evaluation of Cytotoxic Properties of Tea Polyphenols in Intestinal Cells Treated with Over-the-counter Drugs

녹차 폴리페놀 성분과 일반 의약품의 상호작용에 의한 장관계 세포 독성 평가

  • Choi, Hyun-A (Department of Food Science and Technology, College of Natural Science, Seoul Women's University) ;
  • Kim, Mi-Ri (Department of Food Science and Technology, College of Natural Science, Seoul Women's University) ;
  • Hong, Jung-Il (Department of Food Science and Technology, College of Natural Science, Seoul Women's University)
  • 최현아 (서울여자대학교 자연과학대학 식품공학과) ;
  • 김미리 (서울여자대학교 자연과학대학 식품공학과) ;
  • 홍정일 (서울여자대학교 자연과학대학 식품공학과)
  • Received : 2011.06.26
  • Accepted : 2011.08.08
  • Published : 2011.10.31
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Abstract

Polyphenols in green tea are biologically active and may interact with commonly-consumed over-the-counter (OTC) drugs in the body. In this study, modulation of cytotoxicity of polyphenon 60 (PPE, tea polyphenol mixture) with co-treatment of several OTC drugs, including ibuprofen (Ibu), acetaminophen (AAP), and aspirin was investigated in intestinal cells. PPE showed more potent cytotoxic effects on colon cancer HCT 116 cells than on normal intestinal INT 407 cells. Ibu had the strongest cytotoxic effects on both cell types. Cytotoxicity of PPE on HCT 116 and INT 407 cells was not markedly altered by co-treated OTC drugs. Cytotoxicity of the OTC drugs was not affected by PPE. When HCT 116 cells were incubated with AAP before or after PPE treatment, cytotoxicity was slightly enhanced more than their additive effect. The present study may provide basic information of possible toxicity due to interaction of the polyphenols and the OTC drugs.

본 연구에서는 녹차의 주요 생리활성 성분인 PPE와 일반 의약품 성분 AAP, Asp 및 Ibu와의 혼용 시 일어날 수 있는 상호 작용에 의한 세포독성 변화를 장관계 정상세포와 암세포 모델에서 비교하였다. PPE는 정상 장관계 세포 INT 407 및 대장암 세포 HCT 116에 농도의존적인 독성을 나타내었고, $IC_{50}$ 수치는 각각 29.9과 57.4 ${\mu}g/mL$로써 암세포에 더욱 강력한 독성을 보였다. PPE와 200 ${\mu}M$ 이하의 저농도 약물을 HCT 116 세포에 24, 48시간 복합 투여한 결과 전체적으로 현저한 독성의 변화현상은 발생하지 않았다. HCT 116 세포에서 항산화효소 SOD 존재 시에 PPE 독성의 유의적인 감소가 관찰되었으나, 이 조건에서도 약물에 의한 유의적인 변화는 나타나지 않았다. PPE로부터 생성되는 $H_2O_2$의 양은 5 mM 이상의 Asp 또는 Ibu에 의하여 감소하였고, AAP에는 영향을 받지 않았다. INT 407 세포와 HCT 116 세포에서 mM 이상의 고농도 약물과 PPE를 복합 처리하여 세포독성변화를 본 결과 현저한 독성의 변화가 관찰되지 않았으나, INT 407 세포에서 PPE 존재 시 AAP의 독성이 다소 증가하였다. 한편 PPE와 약물을 각각 순서를 달리하여 전후로 처리하였을 때 HCT 116 세포에서의 독성이 단독처리 시 각각의 합보다 20% 이내에서 증가하였다. PPE와 빈번히 복용되는 일반 의약품 AAP, Asp 및 Ibu를 여러 조합에 의해 장관계 세포에 처리하였을 때 이들의 상호작용에 의해 일부 독성의 강화현상이 나타났으나 전체적으로 두드러진 독성발현 빛 활성변화는 발견되지 않았다.

Keywords

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