• 한국식품조리과학회지
• /
• 제13권5호
• /
• pp.661-668
• /
• 1997

By using several solvents, barley extracts containing the anticomplementary activities in classical pathway were prepared (250 $\mu\textrm{g}$/ml): methanol (83.1%), ethanol (71.9%), water extract (25.4%), M-1 (250 $\mu\textrm{g}$/ml), and the soluble part of methanol extract which showed the highest activity (83.4%) and the yield. Anticomplementary activity of methanol extract as well as protease digestion in classical pathway showed 82.4% and 78.4% in the concentration of 250 $\mu\textrm{g}$/ml, respectively. It was found that protein was not involved in anticomplementary activity in the classical pathway and the methanol extract made an impact on classical pathway, but not on alternative pathway. For the immune-stimulating effect, the T cell proliferation effect of the protease digestion displayed little effect irrespective of the dose. In addition, the T cell proliferation effect of methanol extract showed 13-fold higher proliferation effect compared with positive control. It was revealed that the substance containing protein serves as an important factor for the immune proliferation. Therefore, the anticomplementary activity ${\beta}$-glucan in classical pathway and alternative pathway displayed the lowest activity, showing 2.2%, 22.3% respectively. However, the immune-stimulating effect of ${\beta}$-glucan showed the T cell stimulating effect 13 times higher than positive control.

• 한국균학회지
• /
• 제18권3호
• /
• pp.145-148
• /
• 1990

국내에서 자생하는 61주의 고등균류로부터 면역증강효과를 검색하기 위해 이들로부터 성분을 분리하여 이들의 항보체활성을 측정한 결과, krestin의 보체활성도인 20.6%보다 우수한 보체활성 효과를 나타낸 것은 11주 였으며, 이 중에는 Ganoderma lucidum 5주, Lentinus edodes 3주, Cordyceps sp. 3주 및 Agaricus campestris 1주이다.

• Archives of Pharmacal Research
• /
• 제21권6호
• /
• pp.703-706
• /
• 1998

The anticomplementary activity of stilbenes from medicinal plants in Korea was investigated in vitro. 3,5-Dihydroxy-4'-methoxystilbene (3) was most potent with $IC_{50}$ value of $1.5{\times}10^{-4}M$ followed by rhapontigenin (4), oxyresverastrol (2), 2,3,4',5-tetrahydroxystilbene-2-O-beta-glucoside (9), rhaponticin (8), resverastrol (1), and piceid (7). The activity was found to be increased by a methylation on a hydroxy group of C-4' of 1, but decreased by further methylation on hydroxy groups of C-3 and C-5 and glucosylation on any hydroxy group of 1. Addition of hydroxy group on C-2' of 1 or C-3' of 3 was little affected on the anticomplementary activity but the activity was increased by O-glucosylation on C-2 of 1.

• Archives of Pharmacal Research
• /
• 제20권3호
• /
• pp.201-205
• /
• 1997

A very high content (at least 0.23%) of ergosterol peroxide was isolated from Naematoloma fasciculare Karst. Not only ergosterol peroxide but also ergosterol showed very strong anticomplementary activity on the classical pathway, the $IC_{50}$ values being $5.0 {\mu}M$ and $1.0 {\mu}M$, respectively. The $ ^{1}H $and $^{13}C$ NMR data of ergosterol peroxide were revised and completely assigned by DEPT, $^{1}H-^{1}H$ COSY, HMQC and HMBC correlations.

• 한국미생물·생명공학회지
• /
• 제22권1호
• /
• pp.45-51
• /
• 1994

Antitumor polysaccharides were known to activate complement system and to increase specific serum proteins in mouse, and researcher reported that antitumor activity of polyasccharides might be correlated with their biological properties such as activation of complement system and increase of specific protein $L_{A}$, $L_{B}$ and $L_{C}$ within the mouse serum. In case of several Ganoderma lucidum, there was no correlation between their antitumor activities and their bioloical properties, but the antitumor activities against sarcoma 180 of the alkali extracted crude polysaccharide fractions of the Ganoderma lucidum IY 009. AS, T, AI and M were correlated with their bioloical properties such as anticomplementary activity and intensity of mouse serum protein $L_{A}$, $L_{B}$ and $L_{C}$.

• 약학회지
• /
• 제45권6호
• /
• pp.656-663
• /
• 2001

The quality of an intravenous immunoglobulin preparation (IVIG) is reflected by the degree of nonspecific activation of complements, the so-called anticomplementary activity (ACA). ACA of aggregates in IVIG was investigated using method by the European Pharmacopoeia and Clq-coated microtiter enzyme-linked immunosorbent assay (ELISA). Both the EP method and the ELISA method showed a dose response curve with the amount of complements bound increasing with the percentage content of aggregates in immunoglobulin standard. The correlation between the two tests was good (r=0.96, r=0.99). However, the correlation was not found when the ACA (EP method) of IVIG product was compared with its aggregate percentage. These results emphasize that the method of aggregate formation affects ACA and that estimation of the percentage distribution of aggregates by HPLC may not reflect ACA. In analysing WIG product for Clq binding activity test with the ELISA, the result by using Protein A-HRP correlated with aggregate percentage (r=0.84). But the correlation decreased (r=0.48) when the result used Protein A-AP(having poorer sensitivity than HRP) was compared with aggregate percentage. As a result, some variation between the two methods, due to differences in assay principles, is to be expected. However, ELISA technique has the advantage in that it is easier to perform, more precise and less subject to reagent variability, and is the more suitable screening method than HPLC analysis.

• Applied Biological Chemistry
• /
• 제41권6호
• /
• pp.410-413
• /
• 1998

Gel filtration과 ion exchange chromatography, reversed-phase 및 ion exchange FPLC를 이용하여 고려인삼 뿌리에서 subunit 분자량 약 25 kDa의 주요단백질(이하 GMP)을 분리하였다. PAS 염색을 통하여 GMP는 carbohydrate moiety를 갖는 당단백질일 가능성을 보여주었고, 이는 glycosidase 처리후 protein band shift 실험으로 확인되었다. GMP는 native polyacrylamide 전기영동 및 gel permeation FPLC를 통해 native form은 약 63 kDa의 분자량을 갖는 dimer로 판단된다. GMP의 생리활성 측정결과, inflammation mediator의 기능탐색에 쓰이는 anticomplementary activity를 보여주었다.

• Archives of Pharmacal Research
• /
• 제22권3호
• /
• pp.317-319
• /
• 1999

Anticomplementary activity of hederagenin and related saponins isolated from Dipsacus asper was investigated in vitro. HN saponin F (3) was most potent with $IC_{50}$ value of$ 3.7{\times}10^{-5} M$ followed by 3-O-${\beta}-D-glucopyranosyl-(1{\rightarrow} 3)-{\alpha}-L-rhamnopyranosyl-(1{\rightarrow}2)-{\beta}-L-arabinopyranosyl$ hederagenin $28-O-{\beta}-D-glucopyranosyl-(1{\rightarrow}6)-beta$-D-glucopyrano side (8), $3-O-{\beta}-L-arabinopyranosyl$ hederagenin $28-O-{\beta}-D-glucopyranosyl-(1{\rightarrow}6)-{\beta}-D-glucopyranoside$ (5), dipsacus saponin A (4), and hederagenin (1) on the classical pathway (CP) of complement system, while the saponins 3-5 did not show the inhibition of hemolysis and rather increase the hemolysis on the alternative pathway (AP). However, all of C-3 monodesmosides [prosapogenin CP (2), dipsacus saponin B (6), and dipsacus saponin C (7)] evoked hemolysis directly on the erythrocytes.

• 생약학회지
• /
• 제27권1호
• /
• pp.20-25
• /
• 1996

In searching for anticomplementary compounds, three phenylpropanoids were isolated from the roots of Agastache rugosa and identified as rosmarinic acid (RA), rosmarinic acid methyl ester (RAM) and caffeic acid methyl ester (CAM) by NMR analyses. RA and RAM exhibited strong inhibitory activity on both the classical pathway (CP) and the alternative pathway (AP) of the complement system, in vitro, but CAM did far less than RA and RAM. $RAM-M1{\sim}-M5$, the methylated derivatives from the RAM, showed that the inhibitory activity was decreased in inverse proportion to the number of methylated groups and $RAM-M 2{\sim}-M4$, the isomers of two methylated hydroxyl groups, exhibited different inhibition activity.

• 한국미생물·생명공학회지
• /
• 제18권6호
• /
• pp.571-577
• /
• 1990

경기도 광릉에서 채집한 자실체로부터 분리한 Lentinus edodes IY105균을 배양하여 얻은 균사체를 알칼리로 추출하여 얻은 물질이 면역계와 sarcoma 180이 이식된 mouse에 미치는 영향을 검토하였다. Lentinus edodes IY105 배양균사체의 알칼리 추출물은 항보체활성과 alternative complement hemolytic 활성을 가지고 있었고, carbon clearance 활성을 가지고 있었고, carbon clearance 활성을 나타내는 것으로 보아 mouse의 망내계에 존재하는 macrophage를 활성화시켜 이 물질에 대한 탐식기능을 증가시킴을 알수 있었다. 또한, 이물질은 mouse의 용혈반 형성 세포수를 증가시키는 것으로 보아 항체생산 자극효과가 있는 것으로 추측되었으며, 종양세포인 sarcoma 180이 이식된 mouse의 암을 50 정도 억제하는 효과를 나타내었다. 알칼리 추출물의 성분을 분석한 결과, 당 17, 단백질 42로 구성된 단백질다당체가 주성분으로 단백다당체는 16종의 아미노산과 52종류의 당으로 구성되어 있었다.