Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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The protective effect of Citrus unshiu Peel water extract through PI3K/Akt/NF-κB signaling pathway in mice with HCl/ethanol-induced acute gastritis

HCl/ethanol로 유발한 급성 위염 마우스에서 PI3K/Akt/NF-κB 신호전달경로를 통한 진피 열수 추출물의 보호 효과

  • Lee, Se Hui (Department of Herbology, College of Korean Medicine, Daegu Haany University) ;
  • Shin, Mi-Rae (Department of Herbology, College of Korean Medicine, Daegu Haany University) ;
  • Park, Hae-Jin (DHU Bio Convergence Testing Center, Daegu Haany University) ;
  • Roh, Seong-Soo (Department of Herbology, College of Korean Medicine, Daegu Haany University)
  • 이세희 (대구한의대학교 한의과대학 본초약리학교실) ;
  • 신미래 (대구한의대학교 한의과대학 본초약리학교실) ;
  • 박해진 (대구한의대학교 DHU 바이오융복합시험센터) ;
  • 노성수 (대구한의대학교 한의과대학 본초약리학교실)
  • Received : 2022.02.15
  • Accepted : 2022.04.20
  • Published : 2022.06.30
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Abstract

This study aimed to verify the effect of Citrus unshiu peel water extract (CUP) on a mouse model of acute gastritis (AG) induced by HCl/ethanol. Several studies have found that CUP has anti-inflammatory effects. The AG model was induced by oral administration of 150 mM HCl/60% ethanol (550 µL) to all groups except the control group. Also, for drug treatment, sucralfate (10 mg/kg) and CUP (100 or 200 mg/kg) were orally administered for 90 minutes before induction. The effect of CUP treatment was confirmed by gross gastric mucosal damage measurement, and the levels of Glutamic Oxaloacetic Transaminase (GOT), Glutamic Pyruvic Transaminase (GPT), and myeloperoxidase were reduced as well as the levels of oxidative stress biomarkers and their related proteins. In addition, the levels of inflammatory proteins, mediators, and cytokines were significantly downregulated byPI3K/Akt signaling. Taken together, these results show that CUP treatment alleviates AG by regulating PI3K/Akt signaling.

본 연구에서는 우선 진피 열수 추출물의 in vitro 항산화능을 평가하기 위해 total polyphenol, total flavonoid 함량, DPPH 및 ABTS radical 소거능을 분석한 후, 150 mM/60% ethanol로 유발한 급성 위염 동물 실험을 진행하여 급성 위염 완화 효과를 검증하였다. 약물투여군의 혈청 내 ROS와 MPO 수준, 조직 내 MDA 수준의 유의성 있는 감소를 확인하였으며, western blot을 통해 NOX2와 p22phox를 포함한 산화적 스트레스 관련 단백질을 억제하였고, PI3K/Akt/NF- κB 신호 전달 경로를 통한 염증성 단백질의 현저한 감소를 확인하였다. 따라서 이러한 결과는 진피 열수 추출물이 급성 위염에 대한 완화 효과를 나타냈으며, 위염 및 천연 치료제의 후보 소재로서 가능성이 있다고 판단된다. 또한, 향후 만성 위염, 위암과 같은 위장 질환에 관한 추가 연구에서 진피 열수 추출물의 활용 가능성을 시사한다.

Keywords

Acknowledgement

본 연구는 한국연구재단에서 시행한 (2017R1A2B2006858)와 (2018R1A5A2025272)의 지원을 받아 수행되었습니다.

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