으뜸도라지추출물이 RBL-2H3 세포에서 탈과립과 염증매개물질의 분비 억제에미치는 영향 (Inhibitory effect of the aqueous extract of a tetraploid ‘etteum’ variety in Platycodon grandiflorum on degranulation and inflammatory mediator release in RBL-2H3 cells)

서지정보

· 발행기관 : 한국영양학회
· 수록지 정보 : Journal of Nutrition and Health / 51권 / 3호 / 208 ~ 214페이지
· 저자명 : 정재인, 김형서, 지한결, 이현숙, 이재용, 김은지

초록

본 연구는 으뜸도라지추출물의 항알레르기 효과를 조사하기 위해 실시하였다. 으뜸도라지추출물 (50, 100 및 200 μg/mL) 처리에 따른 RBL-2H3 비만세포의 세포독성을 조사한 결과 으뜸도라지추출물은 모든 농도에서 세포독성이관찰되지 않았고, β-hexosaminidase assay를 통해 비만세포의 탈과립 억제능을 평가한 결과 재래종도라지추출물과비교하여 β-hexosaminidase 억제능이 10배 뛰어남을 확인하였다. 또한 으뜸도라지추출물은 RBL-2H3 비만세포에서 탈과립 후 유리되는 대표물질인 IL-4, TNF-α, PGE2 및 LTB4의 생성 분비를 현저히 감소시켰고, 이러한 효과는 재래종도라지와 비교하여 월등한 것으로 나타났다. 이상의 결과는 으뜸도라지추출물이 알레르기 반응을 효과적으로 억제함을 제시하며 향후 항알레르기 기능성 소재로개발 가능성이 있음을 나타낸다.

영어초록

Purpose: Platycodon grandiflorum (a domestic diploid variety, DV-PG) has been used as a food and component of various traditional oriental medicines. Although DV-PG is known to have an anti-allergic effect, little is known about the beneficial health effects of the tetraploid ‘Etteum’ variety in the Platycodon grandiflorum (TV-PG), which is a recently developed variety.
In this study, we investigated the effect of TV-PG on the rat basophilic leukemia mast cell (RBL-2H3)-mediated allergic response. Methods: To examine the effects of TV-PG on the allergic response, RBL-2H3 cells were sensitized with dinitropheny (DNP)-immunoglobin E, treated with various concentrations of TV-PG, and challenged with DNP-human serum albumin. We estimated cell granulation by measuring the release of β-hexosaminidase and production of inflammatory mediators by ELISA. Results: TV-PG had no effect on the proliferation or cytotoxicity of RBL-2H3 cells within the concentration range of 0 to 200 μg/mL. TV-PG inhibited degranulation of RBL-2H3 cells by antigen stimulation in a dose-dependent manner. TV-PG also suppressed the production of inflammatory cytokines and mediators such as interleukin-4, tumor necrosis factor-α, prostagladin E2, and leukotriene B4 in RBL-2H3 cells by antigen stimulation.
Conclusion: These results indicate that TV-PG exhibits anti-allergic activity via inhibition of degranulation as well as suppression of inflammatory mediators and cytokine release. These findings suggest that TV-PG may have potential as a preventive and therapeutic agent for the treatment of various allergic diseases.

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