Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
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Effects of Ethanol Extract from Lathyrus palustris on Anti-inflammation Response of RAW 264.7 Cell

RAW 264.7 대식세포 염증반응에 대한 털연리초 에탄올 추출물의 항염증 효과

  • Nam, Jung Hwan (Highland Agriculture Research Institute, National Institute of Crop Science Rural Development Administration)
  • 남정환 (농촌진흥청 국립식량과학원 고령지농업연구소)
  • Received : 2020.07.02
  • Accepted : 2020.07.17
  • Published : 2020.08.01
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Abstract

Lathyrus palustris often used as a treatment for inflammation of the kidneys in Korean traditional medication. Generally, drugs for arthritis have anti-inflammatory and antinociceptive properties. However, the validity of the anti-inflammatory effect has not been scientifically investigated so far. Therefore, the purpose of the research was to investigate the latent anti-inflammatory ability of L. palustris using the ethanol extract. To evaluate the anti-inflammatory activities, we examined the inflammatory arbitrators such as a nitric oxide (NO) and prostaglandin E2 (PGE2) on RAW 264.7 cells. Our results indicated that ethanol extract significantly inhibited the lipopolysaccharide E (LPS) derived PGE2 production in RAW 264.7 cell. The inhibitory activity of ethanol extract for PGE2 tests with inhibition ratio showed in 40 ㎍/mL. Overall, PGE2 tests had a higher inhibitory effect on inflammation than NO tests. This result anticipated that the ethanol extract from L. palustris is a good candidate for developing the origin of anti-inflammatory agents.

염증은 신체 특정 조직의 감염 및 손상에 관한 생체 반응이며, 매개하는 주요 대상은 면역세포이다. 염증은 급성과 만성 염증으로 나뉘며 신체 조직의 감염 및 손상부위의 규모에 따라 구분할 수 있다. 염증의 범위가 크게 발현되거나 급성염증 형태로 진행되지 않을 때 만성 염증으로 진행되며 대표적인 만성 염증 질환인 장 질환(Inflammatory bowel disease)의 일종인 크론병(Crohn's disease)이나 관절질환인 류머티스성 관절염(Rheumatoid arthritis)으로 나타난다. 낮은 수준이기는 하나 비만 역시 염증성 질환으로 분류할 수 있다. 연리초속 식물이 고래에 신장염을 치료하는 민간처방으로 주로 사용됐기에 이에 착안하여 털연리초(Lathyrus palustris)를 이용하여 세포독성과 항염증 활성 효과를 평가하였다. 대식세포인 RAW 264.7 세포에서 염증 유발 인자인 lipopolysaccharide (LPS)로 자극 후 NO와 PGE2 같은 염증 매개 물질들의 억제 효과를 확인하였다. 털연리초 에탄올 추출물을 처리한 후 염증 매개 물질의 저해율(%)을 측정했을 때 NO 및 PGE2 생성을 농도 의존적으로 현저하게 억제하는 농도는 40 ㎍/mL이었으며 특이적으로 PGE2 발현을74% 이상 강력히 억제함을 확인하였다. 따라서 본 연구결과는 털연리초의 에탄올 추출물이 유의성 있는 항염증 효과를 나타내었고 이러한 생리활성 효과는 예방의학적 소재로서의 가능성을 충분히 제시할 수 있기에 염증 질환의 예방 및 비만 억제를 위한 기능성 건강식품의 개발로 이어질 것으로 기대된다. 또한 염증과 관련된 사이토카인 물질인 IL-4, IL-13 및 염증 지표 단백질인 iNOS, COX-2의 억제 메커니즘과 항염증 활성을 나타내는 핵심 성분의 추가적인 연구가 차후 필요할 것으로 판단된다.

Keywords

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