• Archives of Pharmacal Research
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• v.25 no.5
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• pp.608-612
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• 2002

The twelve-protostane analogues were synthesized from alisol B 23-acetate and assessed for their in vitro antitumor activity against six different human and murine tumor cell lines. Of the compounds synthesized, 23S-acetoxy-24R(25)-epoxy-11$\beta$,23S-dihydroxyprotost-13(17)-en-3-hy-droxyimine (12) exhibited significant cytotoxic activities against A549, SK-OV3, B16-F10, and HT1080 tumor cells with $ED_{50}/$ values of 10.0, 8.7 ,5.2, and 3.1 ${\mu}g$/ml, respectively. Furthermore, 23S-acetoxy-13(17),24R(25)-diepoxy-11$\beta$-hydroxyprotost-3-one (5), 13(17),24R(25)-diepoxy-11$\beta$, 23S-dihydroxyprotostan-3-one (6), 24R,25-epoxy-11$\beta$,23S-dihydroxyprotost-13(17)-en-3-one (7), and 11$\beta$,23S,24R,25-tetrahydroxyprotost-13(17)-en-3-one (9) showed moderate cytotoxic activities against 816-F10 and HT1080 tumor cells. These results mean that a hydroxyimino group at C-3 position in the protostane-type terpene enhances cytotoxic activity.

• Korean Journal of Medicinal Crop Science
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• v.16 no.2
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• pp.79-85
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• 2008

Some studies of dandelion have been carried out on bioactivities, however, no comparative analysis on antioxidant and cytotoxic activities in the Korean dandelion (T. coreanum NAKAI.; KD) and dandelion (T. officinale WEB.) have been reported. In this study, the extracts of KD and dandelion analyzed relative phenolic contents and free radical scavenging, antioxidant enzyme and cytotoxic activities. The extract of Korean dandelion leaves (KDL) exhibited a higher phenolics content ($368{\pm}11.5\;mg/l00\;g$) and a strong free radical scavenging activity ($RC_{50}$value;87.89 ug/ml) than other parts and BHT (120.12 ug/ml), synthetic antioxidant. At ascorbate peroxidase (APX) activity, the dandelion root (DR) had a greater (38.8 U/mg protein) antioxidant enzyme compare to the dandelion leaves (12.2 U/mg protein). The catalase (CAT) and superoxide dismutase (SOD) followed higher enzyme activity in Korean dandelion root (KDR) than other parts. In a cytotoxic activity against human cancer cell, the extracts of KDR was found to be active against Calu-6, HCT-116, and SNU-601 cell lines, with $IC_{50}$ values of 522.34, 532.74 and 614.85 ug/ml, respectively. These results suggest that KD and dandelion would be an alternative antioxidant source, based on natural plant resources.

• Korean Journal of Pharmacognosy
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• v.20 no.4
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• pp.223-226
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• 1989

A cytotoxic sesquiterpene against L1210 cell has been isolated from the root of Curcuma domestica. Its structure was identified as ${\beta}-sesquiphellandrene$. The cytotoxicity-potentiating substance was (+)-ar-turmerone. (+)-ar-Turmerone potentiated the cytotoxicity of ${\beta}-sesquiphellandrene$(5 fold in $ED_{50}$ value) and an unknown sesquiterpene which was isolated from the root as well, and that of aurapten(6.3 fold) isolated from the unripe fruit of Poncirus trifoliata. Moreover, it potentiated the cytotoxic activities of MeCCNU 10 fold and cyclophosphamide 10 fold. Except the fact that all the effective cytotoxic substances possess relatively good lipophilicity, no relationship between structures of the cytotoxic substances and the cytotoxicity-enhancing effect of (+)-ar-turmerone could be observed.

• Journal of Haehwa Medicine
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• v.4 no.1
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• pp.445-448
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• 1995

Although significant progress has been made during the past four decades in the treatment of human neoplastic disease, effective chemotherapeutic treatments are nevertheless far from satisfactory to patients suffering from cancer, particularly to those with the stomach cancer which is most prevalent in Korea. To find out the effective anticancer drugs, especially human stomach cancer, we tested cytotoxic activities of several medicinal herbs against human stomach cancer cell line, SNU-1. Evodia officinalis, Melia toosendan, Sinomenium acutum, Galla Haeepensis, Celastrus orbiculatus and Taxus caespitosa showed a significant cytotoxic activities.

• Asian Pacific Journal of Cancer Prevention
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• v.16 no.11
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• pp.4671-4675
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• 2015

Moringa oleifera Lam. (Moringaceae) is widely consumed in tropical and subtropical regions for their valuable nutritional and medicinal characteristics. Recently, extensive research has been conducted on leaf extracts of M. oleifera to evaluate their potential cytotoxic effects. However, with the exception of antimicrobial and antioxidant activities, little information is present on the cytotoxic activity of the essential oil obtained from M. oleifera seeds. Therefore, the present investigation was designed to investigate the potential cytotoxic activity of seed essential oil obtained from M. oleifera on HeLa, HepG2, MCF-7, CACO-2 and L929 cell lines. The different cell lines were subjected to increasing oil concentrations ranging from 0.15 to 1 mg/mL for 24h, and the cytotoxicity was assessed using MTT assay. All treated cell lines showed a significant reduction in cell viability in response to the increasing oil concentration. Moreover, the reduction depended on the cell line as well as the oil concentration applied. Additionally, HeLa cells were the most affected cells followed by HepG2, MCF-7, L929 and CACO-2, where the percentages of cell toxicity recorded were 76.1, 65.1, 59.5, 57.0 and 49.7%, respectively. Furthermore, the $IC_{50}$ values obtained for MCF-7, HeLa and HepG2 cells were 226.1, 422.8 and $751.9{\mu}g/mL$, respectively. Conclusively, the present investigation provides preliminary results which suggest that seed essential oil from M. oleifera has potent cytotoxic activities against cancer cell lines.

• Journal of Society of Preventive Korean Medicine
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• v.5 no.1
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• pp.144-150
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• 2001

The cytotoxic activity of Cratalariae sessiliflorae on cultured NIH 3T3 fibroblasts and human oral epithelioid carcinoma cells (KB) were evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazoliumbromide (MTT) colorimetric method These fractions of methanol extract of Cratalariae sessiliflorae showed inhibitory effect in vitro in the milligram range against KB cell lines. In general, the antitumor activities of these fractions were does-dependent over the milligram range. The comparison of IC50 values of these fractions in tumor cell lines showed that their susceptibility to these fractions decrease in the following order: Fr. 4> Fr. 6> Fr. 10> Fr. 2> Fr. 11> Fr. 3> Fr. 8> Fr. 7> Fr. 9> Fr. 1> Fr. 5 by the MTT assay. These fractions were tested for their cytotoxic effects on NIH 3T3 fibroblasts using MTT assay. They exhibited potent cytotoxic activities in vitro in the milligram range against NIH 3T3 fibroblasts. In general, the cytotoxic activities of these fractions were does-dependent over the milligram range. The comparison of CD50 values of these fractions in NIH 313 fibroblasts shows that their susceptibility to these fractions in decrease the following order: Fr. 10> Fr. 9> Fr. 2 = Fr. 4> Fr. 8> Fr. 11> Fr. 1 = Fr. 7> Fr. 3> Fr. 5 = Fr. 6 by the MTT assay. These results suggests that fraction 5 has the most growth - inhibitory activity against KB cell lines.

• Korean Journal of Plant Resources
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• v.7 no.1
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• pp.13-15
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• 1994

Some known coumarins, decursin, nodakenetin, umbelliferone, 7-demethylsuberosin, columbianetin, decursinol angelate and decursinol, showing significant cytotoxic activities against P388 cell lines,were isolated from the roots of Angelica gigas (Umbelliferae) . 7-Demethylsuberosin and columbianetinwere obtained from Angelica gigas for the first time. Chernotaxonornic difference about coumarins com-ponents between the roots of Angelica gigas and those of A. acutiloba is also discussed.

• Journal of Physiology & Pathology in Korean Medicine
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• v.18 no.3
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• pp.914-918
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• 2004

Cytotoxic and antifungal activities were strongly shown by Fr. 4 (218 mg, P388 IC/sub 50/ 652 ng/ml at 75 μg/disc, IC50 834 ng/ml at 30 μg/disc and HM 8). The subfraction 4 - 3 that showed the most activity was cytotoxic to murine leukaemia cells ATCC CCl 46 P388D1, (44.0 mg, P388 IC50 302 ng/ml at 30 μg/disc).

• Korean Journal of Pharmacognosy
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• v.35 no.4 s.139
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• pp.364-367
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• 2004

Cordyceps militaris (CM) has been used as antidiabetics, anticancer, endocrine and sexual functions enhancement in the traditional medicine. Water soluble fractions of CM showed cytotoxic activities on the three kinds of human cancer cell lines, stomachic adenocarcinoma(SNU-1), colorectal adenocarcinoma (SNU-C4), and hepatocellular carcinoma(SNH-354). Cytotoxic activity guided isolation and identification of active fractions afforded cordycepin as an active component.

• Korean Journal of Pharmacognosy
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• v.27 no.1
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• pp.42-46
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• 1996

The medicinal formula, Kilkyungtang (KKT) and two modified Kilkyungtangs (KKT-1 and KKT-2), which were supplemented by the additional crude drug, Houttuyniae herba (KKT-1), and Oldenlandiae diffusae herba (KKT-2) to KKT, had been applied widely as decoctions for the treatment of malignant tumors. Cytotoxic activities against two tumor cell lines, A549 and $B16-F_0$ were investigated. However, none of them were found to exhibit significant cytotoxicity upon tested tumor cells below the concentration of $1000{\mu}g/ml$. However, cytotoxic activities of three reputed antitumor agents, i.e., mitomycin C (MMC), cisplatin (CPT) and 5-fluorouracil (5-FU) was significantly potentiated by the combined treatment of them with KKT, KKT-1 and KKT-2 respectively, especially against A549 (human non small cell lung adenocarcinoma), in vitro.