Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Comparative Study of the Biological Activity Effects of Manjakani (Quercus infectoria Olivier) Extract using Water and 80% Ethanol

열수 및 80% 에탄올로 추출한 만자카니(Quercus infectoria Olivier)의 생리활성 비교연구

  • Received : 2019.12.30
  • Accepted : 2020.02.28
  • Published : 2020.02.28
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Abstract

The purpose of this study was to investigate the biological activities such as cytotoxicity and anti-inflammation using Manjakani (Quercus infectoria Olivier) extract. Manjakani was extracted from hot DW and 80% ethanol. Cell viability was assessed using MTT assay on RAW 264.7 cells. Also, anti-inflammatory activities were measured through changes in the levels of nitric oxide (NO), prostaglandin E2 (PGE2), leukotrien B4 (LTB4), pro-inflammatory cytokines (IL-1β, IL-6 and tumor necrosis factor (TNF)-α) and transcription factor on LPS-induced RAW264.7 cells. The results confirmed that significant cytotoxicity does not appear in the concentration range of 1, 5, and 10 ㎍/㎖ of both extracts of this study. The production of NO was slowed by approximately MDE 37.2% and MEE 43.7% at 10 ㎍/㎖ concentration. Also, level of PGE2 and LTB4 was decreased MDE 30.9%/MEE 43.7% and MDE 37.1%/MEE 43.7%. In the case of inflammatory cytokine was reduced to MDE 38.8%/MEE 50.8% for IL-1β, MDE 35.0%/MEE 44.2% for IL-6 and MDE 31.9%/MEE 36.6% for TNF-α at 10 ㎍/㎖ concentration. The mRNA expression of NF-κB, iNOS and COX-2 significantly decreased by MDE 44.0%/MEE 16.0%, MDE 44.0%/MEE 55.0% and MDE 45.0%/MEE 40.0%, respectively, following the 10 ㎍/mL sample treatment when compared to the control. Both extracts were effective in anti-inflammatory activity. In addition, both extracts showed efficient changes of production of NO, PGE2, LTB4, pro-inflammatory cytokines and transcription factor. But MEE was found to have a higher inhibitory effect than MDE. In other words, Manjakani was showed significant biological activities showing anti-inflammation without cytotoxicity. These results will be provided as fundamental data for further development of the new health food and therapeutics related to the results above.

본 연구는 만자카니(Quercus infectoria Olivier)의 항염증과 같은 생리활성에 대해 실험하였다. 만자카니는 열수(MDE)와 80% 에탄올(MEE)로 추출하였으며, MTT assay로 세포독성을 측정하였다. 항염증 활성을 위하여 nitric oxide (NO), prostaglandon E2 (PGE2) 및 leukotrien B4 (LTB4)의 생성을 측정하였으며, 염증성 사이토카인(IL-1β, IL-6 및 tumor necrosis factor (TNF-α)) 생성 및 전사인자의 발현을 측정 하였다. 그 결과 본 연구 농도범위인 1, 5, 10 ㎍/㎖에서 유의한 세포독성이 나타나지 않는 것을 확인 하였다. 각 시료의 10 ㎍/㎖ 농도에서 NO의 경우 MDE 37.2%, MEE 43.7%, PGE2의 경우 MDE 30.9%, MEE 43.7%, LTB4의 경우 MDE 37.1%, MEE 43.7% 감소되는 것을 확인하였다. 염증성 사이토카인의 경우 각 시료의 10 ㎍/㎖ 농도에서 IL-1β는 MDE 38.8%로 MEE 50.8%, IL-6는 MDE 35.0%, MEE 44.2%, TNF-α는 MDE31.9%, MEE 36.6% 감소되었다. 또한 전사인자의 경우 NF-κB는 MDE 44.0%, MEE 16.0%, iNOS는 MDE 44.0%, MEE 55.0%, COX-2는 MDE 45.0%, MEE 40.0% 감소되었다. 추출물 모두 항염증 활성에 효과가 있었으나 상대적으로 MEE가 염증성 인자의 감소 효능이 높은 것으로 확인 되었다. 결과적으로 만자카니의 여수 및 에탄올 추출물 모두 항염증 효능이 확인 되었으며 상대적으로 MEE의 효능이 더 높은 것으로 나타났다. 객관적으로 유의한 효능을 나타냈으므로 향 후 염증으로 인한 피부 손상 나아가 염증관련 질환을 개선하는 제품의 유용한 소재로써 응용 가능할 것으로 사료된다.

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