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Anti-inflammatory and Anti-oxidative Effects of Rumex acetosa L. in RAW 264.7

RAW 264.7 에서 MAPKs 경로를 통한 Rumex acetosa L.의 항염증, 항산화 효과

  • 성진영 (세명대학교 화장품과학과) ;
  • 김용민 (세명대학교 화장품과학과)
  • Received : 2022.07.01
  • Accepted : 2022.09.17
  • Published : 2022.09.30

Abstract

In this study, the anti-inflammatory and antioxidant effects of aerial parts of Rumex acetosa L. extract were confirmed to prevent various inflammatory diseases and skin aging caused by excessive oxidative stress. As a result of ABTS assay, it was confirmed that the radical scavenging ability increased in a concentration-dependent manner. ROS inhibitory ability was confirmed through DCF-DA assay, and concentration-dependent inhibition of ROS production was confirmed. The effect of inhibiting cell nuclear damage according to ROS was confirmed through DAPI staining. In addition, it was confirmed that the mRNA expression levels of iNOS and COX-2 were inhibited in a concentration-dependent manner through qPCR. As a result of confirming the protein levels of iNOS and COX-2 by western blotting, iNOS was significantly decreased at all concentrations, and COX-2 was significantly decreased at 800 ㎍/mL. The inhibitory effect on the production of NO generated by iNOS was confirmed by NO assay, and NO was decreased in a concentration-dependent manner. In addition, phosphorylation of ERK and JNK in the MAPKs signaling pathway were inhibited. Therefore, Rumex acetosa L. has the potential to be used as an anti-inflammatory and antioxidant cosmetic raw material by showing anti-inflammatory and antioxidant effects through the MAPKs pathway.

본 연구에서는 과도한 산화 스트레스에 따른 각종 염증 질환과 피부 노화를 예방하기 위해 수영 지상부(aerial parts of Rumex acetosa L.) 추출물의 항염증, 항산화 효과를 확인하였다. ABTS assay를 시행한 결과 농도 의존적으로 radical 소거능이 증가함을 확인하였다. 활성산소종(reactive oxygen species, ROS) 억제능은 DCF-DA assay를 통하여 확인하였고, 농도 의존적인 ROS 생성억제를 확인하였다. ROS에 따른 세포 핵 손상 억제 효과는 DAPI staining을 통하여 확인하였다. 또한 iNOS, COX-2의 mRNA 발현 수준은 qPCR을 통하여 농도 의존적으로 억제함을 확인하였다. iNOS, COX-2의 단백질 수준을 western blotting을 통해 확인한 결과, iNOS는 모든 농도에서 유의하게 감소하였으며, COX-2는 800 ㎍/mL에서 유의하게 감소하였다. iNOS에 의해 생성된 NO의 생성 억제 효과는 NO assay로 확인하였으며 농도 의존적으로 NO가 감소하였다. 또한, MAPKs 신호전달 경로 중 ERK와 JNK의 인산화를 억제하였다. 따라서 Rumex acetosa L.은 MAPKs 경로를 통한 항염증 효과와 항산화 효과를 보여 항염증 및 항산화 화장품 원료로 사용될 수 있는 가능성이 있다.

Keywords

Acknowledgement

이 논문은 2022학년도 세명대학교 교내학술연구비 지원에 의해 수행된 연구임.

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