• Journal of the East Asian Society of Dietary Life
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• v.12 no.1
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• pp.15-22
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• 2002

This study was carried out to investigate antimutagenic and cytotoxic effects of Korean traditional Mackjang added with sea tangle powder. The content percentage of most of minerals among general composition increased by adding sea tangle powder. By the Ames test, the antimutagenic effect of ethanol extract of Korean traditional Mackjang added with 5% sea tangle powder was strongest exceeding the control, 10%, and 15% sea tangle additions. The ethanol extract (400$\mu$g/plate) of Mackjang added with 5% sea tang1e powder in the S. typhimurium TA 100 strain showed inhibition rate of 95.0% against the mutagenesis induced by MNNG. The inhibition rate of ethanol extract (400$\mu$g/plate) of Mackjang added with 5% sea tang1e powder in the S. typhimurium TA98 and TA100 strains was 81.4% and 88.8%, respectively, against the mutagenesis induced by 4NQO. Under the same conditions, the suppression against B($\alpha$)P and Trp-P-1 in the TA98 and TA100 strains were 85.3% and 91.0%, and 96.5% and 96.5%, respectively. For the anticancer effects, an investigation was done on the cytotoxicity of Mackjang added with 5% sea tangle powder on the cell lines with human lung carcinoma (A549), human hepatocellular carcinoma (HepG2), and human gastric carcinoma (KATOIII). The cytotoxicities were inhibited with increasing the extract concentration. The treatment of 1.0 mg/mL Mackjang added with 5% sea tang1e powder showed relatively strong cytotoxicity of 61.2%, 61.8% and 66.8% against A549, KATOIII, and HepG2, respectively.

• Journal of Life Science
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• v.17 no.1 s.81
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• pp.76-81
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• 2007

Inhibitory effects of methanol extracts and several solvent fractions from meju on mutagenicity in vitro genotoxicity (SOS chromotest) and growth of human cancer cells (AGS gastric adenocarcinoma and Hep 3B hepatocellular cancinoma cells) were studied. The treatment of meju methanol extracts $(100{\mu}g/assay)$ to SOS chromotest system inhibited N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) induced mutagenicity by 36%. However, the ethylacetate and dichloromethane fractions from meju methanol extracts showed the stronger antimutagenic effects (91% and 91%, respectively) in SOS chromotest. In sulforhodamine B (SRB) assay, the treatments of ethylacetate and dichloromethane fractions (2 mg/assay) significantly inhibited the growth of AGS and Hep 3B cancer cells by 64% and 71%, respectively. These results indicated that meju had inhibitor)r effects on MNNG in SOS mutagenic system and growth of human cancer cells, suggesting that its antimutagenic effect may be relative to activity of doenjang.

• Biomolecules & Therapeutics
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• v.14 no.3
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• pp.148-151
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• 2006

We have previously reported that 2.4 kb of L-plastin promoter (LP) could regulate the expression of adenoviral vector (AV) exogenous genes in a tumor cell specific manner. In the present study, we tested if the replication competent AdLPE1A vector results in a direct cytotoxic effect in hepatocelluar carcinoma (HCC) cells. In vitro cytotoxicity tests were carried out with replication-competent (AdLPE1A) and -incompetent (AdLPCD) LP-driven vectors. AdLPE1A is an AV in which LP was inserted 5' to the E1A and E1B genes. The AdLPCD vector contains LP and the E. coli cytosine deaminase (CD) gene in transcription unit. Exposure of cells to AdLPE1A generated a significant cytotoxic effect as compared to the control. Almost 90% of the cell had manifested the characteristic cytopatic effect on day 9 after infection of cells with 10 MOI of AdLPE1A. On the other hand, almost 35% of the cells were left when the cells had been treated with 100 MOI of AdLPCD together with 5-FC on day 9 when compared with the cells which had never been exposed neither 5-FC nor AdLPCD. These results showed that the replication competent AdLPE1A vector could kill the HepG2 cells directly by the oncolytic effect of the virus. The replication competent AV vector carrying viral E1A generated greater cytotoxic effect than the replication incompetent AV, which contains the CD prodrug activation transcription unit without E1A, in HepG2 cells.

• The Korean Journal of Mycology
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• v.31 no.3
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• pp.155-160
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• 2003

Neutral salt soluble [0.9% NaCl (Fr. NaCl)], hot water soluble (Fr. HW) and methanol soluble (Fr. MeOH) materials were extracted from Paecilomyces sinclairii. In vitro cytotoxicity tests. Fr. HW was not cytotoxic against MH3T3, Sarcoma 180 and HepG2 cancer cell lines at the concentration of $0{\sim}2,000\;{\mu}g/ml$, while HT-29 cell line was cytotoxic at the concentration of $100\;{\mu}g/ml$. Fr. NaCl and Fr. MeOH were slightly cytotoxic to the cell lines. Intraperitoneal injection with Fr. NaCl and Fr. MeOH exhibited antitumor activity with life prolongation effect of 32.3% in mice inoculated with Sarcoma 180. Fr. NaCl improved proliferation of spleen cells and the immunopotentiation activity of B lymphocyte by increasing spleen cell numbers and the alkaline phosphatase activity by $2.4{\sim}2.6\;and\;2.7{\sim}3.9$ folds, respectively. Fr. NaCl generated $89\;{\mu}M$ of nitric oxide (NO) when cultured with RAW 264.7, a mouse macrophage cell line, at the concentration of $50\;{\mu}g/ml$, while iipopolysaccharide, a positive control, produced $79\;{\mu}M$. The Fr. NaCl showed the hightest antitumor effect and activation of B lymphocytes and macrophage. From these results, antitumor effect of P. sinclaitii was likely due to immunopotentiation activity.

• Food Science and Preservation
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• v.15 no.2
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• pp.274-279
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• 2008

This study investigated the antimutagenic and anticancer effects of soybean sauce (kanjang) supplemented with deep sea water and Sea Tangle. The Ames test indicated that kanjang had no mutagenicity but it significantly inhibited mutations induced by N-methyl-N'-nitro-N-nitrosoguanidine(MNNG) and 4-nitroquinoline-1-oxide (4NQO). Kanjang (200 ug/plate) with supplementary deep sea water and Sea Tangle had approximately 90.9% and 62.0% inhibitory effect, respectively, against mutagenesis of TA100 induced by MNNG and 4NQO. There was 61.7% inhibition of mutagenesis induced by 4NQO against the TA98 strain. Kanjang inhibited growth of cell lines of human cervical adenocarcinoma (HeLa), human hepatocellular carcinoma (Hep3B), human gastric carcinoma (AGS), human lung carcinoma (A549), and human breast adenocarcinoma (MCF-7) in a concentration-dependent manner. Treatment with kanjang supplemented with 1.0 mg/mL deep sea water had cytotoxicities of 69.4% 70.5% 55.6% 82.1 % and 73.2% against HeLa, Hep3B, AGS, A549 and MCF-7 cells respectively. In contrast kanjang supplemented with 1 mg/mL deep sea water had only $10{\sim}40%$ cytotoxicity on normal human embryonal kidney cells (293). Kanjang supplemented with deep sea water significantly inhibited tumor growth in mice injected sarcoma-180 cells. In particular, kanjang supplemented with deep sea water (25 mg/kg) inhibited tumor cell activity by 40.9%.

• Horticultural Science & Technology
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• v.34 no.2
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• pp.331-341
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• 2016

We analyzed the functional fragrant components of three species of Cymbidium oriental orchids using gas chromatography-mass spectrometry (GC/MS). For the comparative analysis, C. goeringii 'Minchunran', 'Jugeumhwa', C. forrestii 'Chwigae', 'Songmae', 'Yongja', and C. faberi 'Choemae', 'Namyangmae', 'Hwaja' were investigated. Major fragrant components detected by GC/MS were selected on the basis of more than 3% value according to the analysis of peak area (%). We found that ${\alpha}$-bergamotene, which has a cytotoxic effect on breast cancer, cervical cancer, and glioblastoma, and nerolidol, which induces apoptosis of human hepatoma cells (HepG2), inhibits the growth of Streptococcus mutans and babesiosis, and has antibacterial properties, are common substances produced by C. goeringii L. Nerolidol and ${\beta}$-bisabolene, which is cytotoxic and suppresses the growth of malignant melanoma cells (B16-F10), HepG2, and leukemia cells (HL-60, K562), are major substances in C. forrestii R. Furthermore, ${\alpha}$-pinene, which inhibits the growth of gliobastoma cells (SF-767) and inhibits the anti-inflammatory action of hepatoma cells (BEL-7402); 1,8-cineole, which is a potential therapeutic agent for the treatment of gastric ulcers; and 1,3,7-octatriene, which functions as a pheromone, are the most common substances in C. faveri R. Thus, substances identified as major fragrant components in oriental orchid species have multiple beneficial applications in human health. This research forms the basis for further studies of the roles of major fragrant components in oriental orchids.

• Journal of Life Science
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• v.15 no.5 s.72
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• pp.685-691
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• 2005

Growth and DNA synthesis inhibitory effects of doenjang methanol extract and its solvent fractions on AGS human gastric adenocarcinoma cells, Hep 3B human hepatocellular carcinoma cells, HT-29 human colon cancer cells and MG-63 human osteosarcoma cells were studied. The treatment of doenjang methanol extract ($ 200{\mu}g/ml $) with the AGS, Hep 3B, HT-29 and MG-63 cancer cells after 6 days of incubation inhibited the growth of cancer cells by $32\%$, $51\%$, $84\%$ and $33\%$, respectively. To separate active compounds of doenjang, doenjang methanol extract was fractionated with dichloromethane, ethylacetate, and buthanol. Among the solvent fractions, the dichloromethane and ethylacetate fractions showed the highest growth inhibitory effects on various cancer cells. For example, the dichloromethane and ethylacetate fractions ($200a{\mu}g/ml$) sig-nificantly inhibited the growth of various cancer cells by $89\∼96\%$ and$62\∼86\%$, respectively. DNA synthesis of AGS and Hep 3B cancer cells was significantly inhibited by adding dichloromethane fraction ($200{\mu}g/ml$) up to $94\%$ and $80\%$, respectively. Similarly, the ethylacetate fraction ($ 200\mug/ml $) showed a $ 95\% $ inhibition rate of DNA synthesis in AGS cells. These results suggest that the dichloromethane and ethylacetate fractions have specific active compounds, which will explain this anticancer effect of doenjang.

• Korean journal of food and cookery science
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• v.28 no.2
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• pp.175-182
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• 2012

In this study, antibacterial activity and cytotoxicity of the extracts from pericarp and seed of $Vitis$ $coignetiea$, which were extracted with 0.1% HCl-60% ethanol, were analyzed. The antibacterial activity of the extracts was determined by paper disc diffusion method against food spoilage and food-borne pathogens. The pericarp extract showed high antibacterial activity against $Bacillus$ $cereus$, $Escherichia$ $coli$ O157:H7, and $Pseudomonas$ $aeruginosa$, and the seed extract represented the high antibacterial activity against $B.$ $cereus$, $E.$ $coli$ O157:H7, and $Staphylococcus$ $aureus$. The cytotoxicity of the $Vitis$ $coignetiea$ extract against human cancer cells was determined using the MTT assay and SRB assay. The pericarp extract represented strong growth-inhibition activity against G361 and Hep3B cells and the seed extract greatly inhibited the growth of HeLa and G361 cells in the MTT assay. In addition, the pericarp extract displayed a high inhibition activity against the growth of AGS cells and the seed extract greatly inhibited the growth of HeLa, Hep3B, and MCF7 cells in the SRB assay. Especially, the cytotoxicities of the seed extract against HeLa were significantly higher than those of the extract against other cancer cells at all test concentrations. This study demonstrates that the extract from pericarp and seed of $Vitis$ $coignetiea$ possess high antibacterial activity and cytotoxicity.

• Natural Product Sciences
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• v.2 no.2
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• pp.130-136
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• 1996

Evaluation of plant extracts that might inhibit hepatitis B virus (HBV) replication was performed to find potent anti-HBV agents. Eighty-five species of plants from forty-three families were tested for their anti-HBV activities using HBV-producing HepG2-derived 2.2.15 cells. The anti-HBV activity of plant extracts was measured by slot blot hybridization technique and cytotoxicity was determined by crystal violet staining procedure. All plants were extracted with methanol and the extracts were partitioned into n-hexane, ethyl acetate and aqueous layer. The ethyl acetate fractions of Rhus verniciflua $(stem:\;EC_{50},\;8.2{\mu}g/ml;\;CC_{50},\;9.4{\mu}g/ml)$, Gastrodia elata $(root:\;EC_{50},\;17.7{\mu}g/ml;\;CC_{50},\;>20{\mu}g/ml)$, Raphanus sativus $(seeds:\;EC_{50},\;17.3{\mu}g/ml;\;CC_{50},\;>20{\mu}g/ml)$, and Angelica gigas $(root:\;EC_{50},\;8.3{\mu}g/ml;\;CC_{50},\;15.6{\mu}g/ml)$ revealed the anti-HBV activity in 2.2.15 cell culture system and these fractions are under the process of further sequential fractionation by column chromatography to find the active principles against HBV.

• Journal of the Korean Society of Food Science and Nutrition
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• v.37 no.4
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• pp.410-415
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• 2008

This study was performed to observe the antimutagenic and cytotoxic activities of methanol extract of kochujang added with sea tangle and deep sea water salts (SDK) and kochujang added with sea tangle (SK) using the Ames test and SRB assay, respectively. The direct antimutagenic effect of SDK and SK methanol extracts were examined by Ames test using Salmonella Typhimurium TA98 and TA100. In the Ames test, methanol extract of SDK and SK alone did not exhibit mutagenicity and most of the samples showed high antimutagenic effects against mutation induced by N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) and 4-nitroquinoline-1-oxide (4NQO). Methanol extract of SDK ($200{\mu}g$/plate) showed approximately 71.4% inhibitory effect on the mutagenesis induced by 4NQO against TA98 strain; whereas 56.1% and 83.6% inhibitions were observed on the mutagenensis induced by 4NQO and MNNG against TA100 strain. The cytotoxic effects of SDK and SK increased with increasing sample concentration against human cervical adenocarcinoma (HeLa), human hepatocellular carcinoma (Hep3B), human breast adenocarcinoma (MCF-7), human stomach adenocarcinoma (AGS), and human lung carcinoma (A549). The SDK at the concentration of 1 mg/ml showed cytotoxicities of 61.5%, 61.3%, 51.4%, 57.9% and 77.7% against HeLa, Hep3B, MCF-7, AGS and A549, respectively. In contrast 1 mg/ml treatment of SDK and SK methanol extract had only $2{\sim}38%$ cytotoxicity on human transformed primary embryonal kidney cell (293).