• 대한한의학회지
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• 제18권1호
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• pp.157-168
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• 1997

The purpose of this study is the separation of biologically active ingredients from Coptidis Rhizoma which has been widely used as one of oriental herbal medicine for body fever. In this study, berberine-type alkaloids were tested on their biological activities in the aspect of antibacterial, antitumor, anti-herpetic and anti-HIV activity. Contents of five major alkaloids for the various origin of Coptidis Rhizoma were assayed by HPLC. As the results, the content of berberine from Coptis chinensis and Coptis japonica were 6.78% and 7.09%, respectively. The contents of coptisine, jatrorrhizine, berberastine from Coptis chinensis were higher than those of Coptis japonica. The amount of palmatine from both species were almost the same. Surprisingly for antitumor experiment, all compounds have been shown remarkable activity, especially against SNU-l(human stomach cancer) cell line. Among the compounds purified through column chromatography, palmatine, coptisine, and jatrorrhizine inhibited the growth of K-562(human chronic myelogenous leukemia) cell line whereas jatrorrhizine has been shown the effective inhibition of A-549 (human lung) cell line at the same time.

• 한국축산식품학회지
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• 제24권3호
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• pp.293-297
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• 2004

본 연구에서는 유황오리로부터 항종양 효과를 나타내는 물질을 용매 추출법과 각종 크로마토그래피를 사용하여 분리 및 정제하였다. 유황오리로부터 정제한 활성 물질의 각종 종양세포에 대한 항암 효과를 측정한 결과 MTT assay는 100 $\mu\textrm{g}$/mL의 농도에서 HEp-2는 56%, KB는 58%의 세포 증식 억제 효과가 나타났다. 정상 세포주인 MDBK는 28%의 세포증식억제 효과가 나타나 정상 세포에 대한 세포 독성은 나타나지 않았다. Clonogenic assay는 200 $\mu\textrm{g}$/mL의 농도에서 HEp-2는 26%, KB는 28%의 생존율을 나타내었다. 따라서 유황오리로부터 정제한 활성 물질은 후두암 세포주인 HEp-2와 구강암 세포주인 KB에서만 특이적으로 세포 증식 억제 효과를 나타내었다.

• Journal of Korean Biological Nursing Science
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• 제12권3호
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• pp.127-132
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• 2010

Purpose: The aim of this study is to evaluate the effect of Xanthium sibiricum Patr. on carcinogenesis. Method: Water extract from Xanthium sibiricum Patr. (XPW) was prepared and investigated for the potential antitumor activity and inhibition of benzo[a]pyrene-DNA adduct formation and free radical formation. Result: It was shown that the water possess considerable toxicity toward tumor cell lines. Concentration of XPW at 1.0 mg/mL and 2.5 mg/mL resulted in more than 30% inhibition of growth in HeLa cells. Toxicity of XPW to A549 revealed that 54% inhibition of growth at concentration of 2.5 mg/mL. At concentrations of 0.5 mg/mL, 1.0 mg/mL and 2.5 mg/mL of XPW, the binding of [$^3H$]B[a]P metabolites to DNA of human Chang cell was inhibited by 19%, 33%, and 41%, respectively. There 18% and 32% inhibition in the free radical formation with XPW at the concentration of 1.0 mg/mL and 2.5 mg/mL, respectively. Conclusion: Water extract from Xanthium sibiricum Patr. (XPW) has antitumor and cancer chemopreventive activities.

• Archives of Pharmacal Research
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• 제19권3호
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• pp.207-212
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• 1996

To find pharmacologically active components of Agrocybe cylin(Iracea, its basidiocarps were extracted with water. The extracts were separated by DEAE cellulose column chromatography, Sepharose CL-4B gel filtration, and Concanavalin A-Sepharose 4B affinity chromatography. Among the obtained fractions from A, cylinclracea, fraction IN which was the neutral proteinbound-polysaccharide fraction exhibited a marked antitumor activity and it was tentatively named "Cylindan". It showed about 70% of tumor inhibition against the solid form of sarcoma 180 when a dose of 30 mg/kg/day was intraperitoneally injected into ICR mice. When each fraction was examined by chemical analysis, Cylindan consisted of 85% polysaccharide, 3% protein and 1% hexosamine. Its polysaccharide moiety contained glucose, mannose, fucose and galactose and its protein moiety contained the comparatively large amounts of aspartic acid and glycine, and other 11 amino acids.

• 약학회지
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• 제31권2호
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• pp.70-81
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• 1987

To elucidate action mechanism of lyophyllan A, an antitumor polysaccharide of Lyophyllum decastes, its immunological activities were examined. Lyophyllan A increased significantly the weights of spleen and liver of mice. Lyophyllan A also restored the decreased thymic weight in tumor-bearing mice. It did not show any direct cytotoxicity against tumor cells, but showed immunopotentiating activities by increasing the number of the plaques in hemolytic plaque assays. Lyophyllan A increased the number of peritoneal exudate cells (PEC) and inhibited the growth of sarcoma 180 mixed with PEC. Moreover the macrophages from lyophyllan A-treated mice exhibited a strong cytotoxic activity towards L5178Y target cells.

• Archives of Pharmacal Research
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• 제19권1호
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• pp.77-78
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• 1996

• 대한화학회지
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• 제55권4호
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• pp.719-722
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• 2011

• 약학회지
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• 제43권5호
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• pp.629-634
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• 1999

A protein-polysaccharide fraction was isolated from the mycelial culture of a Korean basidiomycetous fungus, Hebeloma crustuliniforme, and was named HCA (Hebeloma crustulineforme fraction A). When intraperitoneally injected at 200 mg/kg/day once daily for 10 days, HCA inhibited the growth of sarcoma 180 solid tumor in ICR mice by 65.1% (p＜0.05). HCA also exerted protective effect against leukopenia induced by cyclophosphamide with the protection ratio of 39.7% (p＜0.01).

• 대한약리학회지
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• 제32권1호
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• pp.93-102
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• 1996

일부 malignant tumor에 Pt-complex의 임상 응용 과정에서 신장독성등의 심한 부작용이 문제점으로 지적되고 있다. 이 연구에서는 기존의 cisplatin보다 항암효과는 우수하면서, 부작용을 감소시킨 새로운 Pt complex의 개발에 역점을 두었다. 본 연구에서 합성한 Pt(II) complex는 carrier ligand로서 1,2-diaminocyclohexane(dach)을 사용하였고, leaving group으로는 diphosphine류인 1,3-bis (diphenylphosphine의 propane(DPPP) 을 도입하였으며, 물에 대한 용해도를 높이기 위해 dinitrate로 만들었다. 새로이 합성한 [Pt(II)(cia-dach)(DPPP)].$(NO_3)_2$ 은 원소 분석, IR 및 $^{13}C-NMR$ 분석 data에 의하여 위의 물질임이 확인되었다. PC-1은 MTT assay method에 의한 항암활성 연구를 통하여 SKOV-3, OVCAR-3 human ovarian adenocarcinoma cells에서 항암효과가 인정되었으며, 이 항암효과는 대조 약물로 사용된 cisplatin과 유사하였다. PC-1은 토끼의 신세뇨관 세포와 인체의 신피질 세포를 이용한 cytotoxity 및 thymidine 섭취율과 인체 신피질 조직 배양을 이용한 glucose consumption 실험을 통하여 모두 cisplatin보다 신장독성이 현저히 감소되었다. 이상의 결과로 보아 Pt(II) complex는 carrier ligand와 leaving group의 선택에 따라 항암활성의 증가와 신독성의 감소를 일으키는 요인으로 보여지며, 이 연구에서 만들어진 새로운 Pt(II) complex는 앞으로 다각적인 검토를 거쳐 새로운 anticancer chemotherapeutic agent로 개발될 가능성이 있을 것으로 생각된다.

• Archives of Pharmacal Research
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• 제13권4호
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• pp.330-337
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• 1990

The crude polysaccharide from Panax ginseng prepared by hot water extration and precipiation with ethanol was further fractionated into neutral and acidic fractions by DEAE- cellulose ion exchange chromatography. The chemical compositions were 85.0% carbohydrorate and 15.0% protein for the neutral fraction, and 28.4% carbohydrate, 10.0% protein and 29.0% uronic acid for the acidic fraction. The acidic fraction was more effective in increasing of the ratio of spleen to body weight, the number of antibody secreting cells to SRBC and phagocytic activity of reticuloendothelial system, as well as antitumor activity against the solid form of sarcoma 180 in ICR mice than the neutral fraction. All polysaccharide fractions were mitogenic to cultured spleen cells of C57BL/6 mice. However, FA was different from FN in the co-mitogenicities with lectin mitogens. Both crude and acidic fractions potentiated remarkably the mitogenic activity of PHA-P or LPS in dose-dependent manner but neutral fraction enhanced only that of LPS. Three polysaccharide fractions had no effect on that of Con A. These results suggest that the acidic fraction may stimulate B and Td cells as well as macrophages while the neutral fraction may simulate only B cells and macropages.