Journal of Food Hygiene and Safety (한국식품위생안전성학회지)

The Korean Society of Food Hygiene and Safety (한국식품위생안전성학회)
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Inhibitory Effect of Korean Fermented Soybean (Chungkookjang) Extract and Genistein Against Trp-P-1 Induced Genotoxicity in HepG2 Cells

  • Received : 2017.02.27
  • Accepted : 2017.04.05
  • Published : 2017.06.30
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Abstract

This study evaluated the protective effect of Chungkookjang (CKJ) extract, a Korean traditional fermented soybean product made from Bacillus species in rice straw and boiled soybean, and one of its main flavonoids, genistein, against Trp-P-1 induced cytotoxicity and DNA damage in HepG2 cells. CKJ and genistein exhibited protective effect against Trp-P-1 induced cytotoxicity and Trp-P-1 induced DNA single strand breaks. CKJ and genistein inhibited Trp-P-1 induced CYP1A1 and CYP1A2 transcription in HepG2 cells. Our results indicated that CKJ and genistein have the protective effect against Trp-P-1 induced cytotoxicity and DNA damage. Via inhibiting expression of CYP1A1 and CYP1A2. CKJ can be used as a promising functional food material that prevents the genotoxicity induced by carcinogens produced by the heat treatment of foods such as heterocyclic amines (HCAs) that cause genomic instability.

청국장추출물과 청국장의 주요한 플라보노이드의 하나인 genistein의 HepG2 세포에서 Trp-P-1 유도 세포독성과 DNA손상에 대한 보호효과를 평가하였다. 청국장추출물과 주요 플라보노이드성분 genistein은 Trp-P-1 유도 세포독성에 대하여 세포독성보호효과를 나타내었다. 청국장추출물은 Trp-P-1 유도 DNA single strand breaks를 억제하였다. 한편, 청국장추출물은 HepG2 세포에서 Trp-P-1 유도에 의한 CYP1A1와 CYP1A2 발현의 억제를 나타내었다. 청국장추출물과 genistein은 Trp-P-1에 의한 유도 세포독성과 DNA손상에 대하여 CYP1A1, CYP1A2 발현억제에 의하여 보호효과가 나타나는 것으로 판단된다. 한국의 전통 콩발효식품인 청국장은 게놈 불안정성(genomic instability)을 일으키는 heterocyclic amines (HCAs)과 같은 식품의 가열조리로부터 올 수 있는 발암물질에 대한 유전독성을 예방할 수 있는 유망한 기능성물질로서 활용가능성이 있을 것으로 판단된다.

Keywords

References

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