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Cytotoxic compounds against adenocarcinoma alveolar epithelial A549 cells from Paeoniae Radix

작약 뿌리에서 분리한 폐포 선암 세포주 A549에 대한 세포독성 화합물

  • Ji Won Park (Research Institute of Pharmaceutical Science, College of Pharmacy, Kyungpook National University) ;
  • Sang-Eun Shin (Research Institute of Pharmaceutical Science, College of Pharmacy, Kyungpook National University) ;
  • Haewon Park (Research Institute of Pharmaceutical Science, College of Pharmacy, Kyungpook National University) ;
  • Jeong Ah Kim (Research Institute of Pharmaceutical Science, College of Pharmacy, Kyungpook National University) ;
  • Eun-Ju Yang (College of Pharmacy, Chung-Ang University) ;
  • Kyung-Sik Song (Research Institute of Pharmaceutical Science, College of Pharmacy, Kyungpook National University)
  • Received : 2023.04.19
  • Accepted : 2023.06.27
  • Published : 2023.12.31

Abstract

It has been known that Paeoniae Radix (PR) contains monoterpene glycosides showing a variety of biological activities such as anti-spasmodic, anti-inflammatory, anti-viral, neuroprotective, and sedative effects. This study aimed to find the cytotoxic compounds isolated from the dichloromethane (CH2Cl2)- and ethyl acetate-soluble fractions of PR. As results, thirteen compounds (1-13) were isolated and the chemical structures were identified. In addition, the human alveolar adenocarcinoma cell line (A549) was treated with isolated compounds to determine the cytotoxic effect via evaluation of cell viability. The reduction of A549 cell viability was shown as following order; gallic acid (8) > (2S)-naringenin (9) > methyl gallate (10)>6'-O-benzoylpaeoniflorin (7) > palmitic acid (3). Especially, 7 did not show the cytotoxicity in the human lung fibroblast cell line (MRC-5). The effect of 7 on the cell viabilities in A549 and MRC-5 is firstly reported in this study. Further study is required to find out the cytotoxic mechanism and the selectivity for the cancer cells of 7 in detail.

작약 뿌리는 monoterpene glycoside계 물질을 함유하고 있으며, 이들 화합물은 항경련, 항염증, 항바이러스, 신경보호 및 진정효과를 나타내는 것으로 알려져 있다. 이번 연구에서는 작약 뿌리의 dichloromethane (CH2Cl2) 및 ethyl acetate (EtOAc) 가용성 분획으로부터 세포독성 물질을 탐색하고자 하였다. 그 결과, 총 13종의 화합물을 분리할 수 있었으며, 이들의 세포독성 평가를 위해 사람 유래 폐암 선암 세포주인 A549에 처리하여 세포생존율 변화를 관찰하였다. A549에 대한 세포독성은 gallic acid (8) > (2S)-naringenin (9) > methyl gallate (10) > 6'-Obenzoylpaeoniflorin (7) > palmitic acid (3) 순으로 나타났다. 특히, 7은 normal cell인 MRC-5에 대한 독성은 없는 것으로 확인되었으며, 7의 A549 및 MRC-5 세포생존율에 미치는 영향에 대한 보고는 이번이 처음이다. 향후 7에 대한 세포독성 메커니즘 및 선택성과 관련된 추가연구가 필요할 것으로 판단된다.

Keywords

Acknowledgement

이 논문은 2022학년도 경북대학교 연구년 교수 연구비에 의하여 작성되었음. 중앙대학교에서 실시한 활성평가 연구는 농촌진흥청 연구사업(세부과제번호: PJ014208)의 지원에 의해 수행되었습니다.

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