Korean Journal of Clinical Laboratory Science (대한임상검사과학회지)

Korean Society for Clinical Laboratory Science (대한임상검사과학회)
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Protective Effect of Agrimonia pilosa var. Extract on Cultured NIH3T3 Fibroblasts Damaged by Potassium Dichromate

크롬염으로 손상된 배양 NIH3T3 섬유모세포에 대한 짚신나물 추출물의 보호 효과

  • Lee, Jun-Hee (Department of Emergency Medicine, Sanbon Hospital, Wonkwang University College of Medicine) ;
  • Seo, Young Mi (Department of Nursing, College of Medicine, Wonkwang Health Science University)
  • 이준희 (원광대학교 의과대학 산본병원 응급의학과) ;
  • 서영미 (원광보건대학교 간호학과)
  • Received : 2019.05.15
  • Accepted : 2019.05.31
  • Published : 2019.06.30
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Abstract

The protective effect of Agrimonia pilosa var. (AP) extract on potassium dichromate ($K_2Cr_2O_7$)-induced cytotoxicity in cultured NIH3T3 fibroblasts, was examined by performing an XTT assay for the cell viability and antioxidative effects, such as lactate dehydrogenase (LDH) activity and superoxide anion-radical (SAR) scavenging activity. In this study, $K_2Cr_2O_7$ decreased the cell viability significantly in a dose-dependent manner, and the $XTT_{50}$ value was determined to be $37.5{\mu}M$, which was highly-toxic according to the Borenfreund and Puerner' toxic criteria. The antioxidant, butylated hydroxytoluene (BHT), increased remarkably the cell viability damaged by $K_2Cr_2O_7$-induced cytotoxicity in these cultures. With regard to the protective effect of the AP extract on $K_2Cr_2O_7$-induced cytotoxicity, AP extract produced a significant increase in cell viability and antioxidative effects as the inhibitory ability LDH and SAR scavenging ability. These findings suggest that oxidative stress is involved in the cytotoxicity of $K_2Cr_2O_7$, and the AP extract effectively protected the cells from $K_2Cr_2O_7$-induced cytotoxicity by antioxidative effects. These results suggest that natural resources, such as AP extract, may be a putative therapeutic agent for the diminution or treatment of cytotoxicity induced by heavy metallic bases, such as $K_2Cr_2O_7$ correlated with oxidative stress.

크롬염의 일종인 중크롬산칼륨($K_2Cr_2O_7$)의 세포독성을 배양 NIH3T3 섬유모세포를 재료로 산화적 손상측면에서 조사하였으며, 또한 $K_2Cr_2O_7$의 세포독성에 대한 짚신나물(Agrimonia pilosa var., AP) 추출물의 영향을 세포생존율을 비롯한 LDH 억제능 및 superoxide anion-radical (SAR) 소거능과 같은 항산화 측면에서 분석하였다. 본 실험에서 배양 NIH3T3 섬유모세포에 $25{\sim}35{\mu}M$의 $K_2Cr_2O_7$을 각각 처리한 결과, 처리 농도에 따라 대조군에 비하여 세포생존율이 유의하게 감소되었으며, 이 때 $XTT_{50}$값은 $37.5{\mu}M$에서 나타나 고독성(highly-toxic)인 것으로 나타났다. 또한, 항산화제인 BHT는 $K_2Cr_2O_7$의 세포독성을 유효하게 방어하였다. AP 추출물은 $K_2Cr_2O_7$의 세포독성에 의하여 감소된 세포생존율을 유의하게 증가시킴으로서 세포독성을 방어하였다. 이와 동시에, AP 추출물은 LDH 활성 저해능을 비롯하여 SAR 소거능을 보임으로서 항산화 효과를 나타냈다. 위의 결과로부터 $K_2Cr_2O_7$의 세포독성에 산화적 손상이 관여하고 있는 것을 확인하였고, AP 추출물은 $K_2Cr_2O_7$의 독성을 항산화능에 의하여 효과적으로 방어하였다. 따라서, AP 추출물과 같은 천연성분은 크롬과 같은 산화적 손상과 관련된 독성을 방어할 수 있으므로 산화적 손상에 의한 질환 치료를 위한 물질로 활용적 가치가 크다고 사료된다.

Keywords

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