• Analytical Science and Technology
• /
• v.14 no.2
• /
• pp.191-195
• /
• 2001

Cucurbitacin D and F, the protostane type triterpenoid of S. sorbifolia, were isolated with chromatograpic method and used as the standard substances for quantitative analysis. The compounds were identified with $^1H$-NMR, FAB-MS and UV spectrophotometer. They were separated on YMC-Pack ODS-AQ(303)[$250{\times}4.6mm$ I.D., $S-5{\mu}m$, 120A] column by HPLC. Cucurbitacin F was detected at 10.73mg/kg in cortex of S. sorbifolia, but cucurbitacin D was not. The compounds were shown to exihibit significant cytotoxicity($ED_{50}$<$0.1{\mu}g/mL$) against several tumor cell lines and acute toxicity(cucurbitacin D: 4.7mg/kg/day, cucurbitacin F: 2.5mg/kg/day) against BDF-1 mouse.

• The Journal of Korean Medicine
• /
• v.24 no.1
• /
• pp.74-83
• /
• 2003

Background : Production of cytokines by bronchial epithelial cells may contribute to the local accumulation of inflammatory cells in patients with bronchial asthma. In many recent studies, molecular biological methods have been used to investigate the role of cytokines in pathogenesis and new therapeutic targets of asthma. Objective : We aimed to identify the dose-dependent inhibitory effects of Socheongryong-tang and Socheongryong-tang plus Sasam (Adenophorae Radix) on the mRNA expressions of Interleukin (IL)-6, IL-8 and granulocyte macrophage colony stimulating factor (GM-CSF) involved in the asthma model. Materials and Methods : In this study, BEAS-2B cell lines, human epithelial cells, were used. These cells were stimulated by tumor necrosis factor $(TNF)-{\alpha},{\;}IL-1{\beta}$ and histamine for artificial inflammatory expression. ${\beta}-actin$ messenger RNA (mRNA) was used for the internal standard. After each 24 hours of the Socheongryong-tang (小靑龍湯) and Socheongryong-tang plus Sasam (小靑 龍湯加沙蔘) treatment, total cellular RNAs were collected by applying RNAzol directly to the living cells. Then the transcriptional activities of IL-6, IL-8 and GM-CSF were measured by RT-PCR with electrophoresis. Results : In the Socheongryong-tang (小靑龍湯) study, the mRNA expressions of IL-6, IL-8 and GM-CSF were significantly inhibited compared to that of the control group (p<0.05). In the Socheongryong-tang plus Sasam (小靑龍湯加沙蔘) study, the mRNA expressions of IL-6, IL-8 and GM-CSF were significantly inhibited compared to that of the control group (p<0.05). Conclusions : This study shows that Socheongryong-tang (小靑龍湯) and Socheongryong-tang plus Sasam (小靑龍湯加沙蔘) have dose-dependent inhibitory effects on the mRNA expressions of IL-6, IL-8 and GM-CSF in human epithelial cells, so these herbal medicines may inhibit the inflammatory process of asthma. Advanced studies are required to investigate the mechanisms of inhibition by herbal medicine in the asthma model.

• Journal of Microbiology and Biotechnology
• /
• v.10 no.4
• /
• pp.514-517
• /
• 2000

Abstracts Six shikonin metabolites were obtained from human intestinal bacteria, Bacteriodes fragilis subsp. thetaotus. following biotransformation. The transformation of shikonin (1) was performed anaerobically for 3 day at $37^{\circ}C$ in thc bacterial suspension of B. Fagilis which was cultured overnight in GAM broth. The incubation mixture \vas extracted with EtGAc Lo give a dark-brown residue. The residue was apphed to a silica gel column, which was eluted successively with hexane (Fr. A), $CHCl_3$ (Fr. B), and $CHCl_3$:MeOH (9:I) (Fr. C). Six metabolites. Fr.A (2 and 3), Fr. B (6 and 7), and Fr. C (4 and 5) were isolated by repeated silica gel column chromatography, preparatlVe TLC, followed by Sephadex LH-20. In vitro cytotoxicities were tested against human tumor cell lines; PC-3 (prostate), ACHN (renal), A549 (lung), SW620 (colon), KS62 (leukemia), and Du145 (prostate). The shikonin metabolites 2. 4, 5, and 6 showed weaker cytotoxicity than the parenL shikonin (1). whereas shikonin monomenc metabolite 3 ($ED_{50}{\;}O.44-{\;}1.22{\;}\mu\textrm{g}/ml$) and dimeric metabolite 7 ($ED_{50}{\;}O.48-{\;}2.35{\;}\mu\textrm{g}/ml$) exhibited stronger activities compared with adriamycin, which was used as the positive control.ontrol.

• Proceedings of the KSAR Conference
• /
• 2001.03a
• /
• pp.59-59
• /
• 2001

Interleukin-10 (IL-10) is known as a regulator of inflammation and pathogenesis in mammalian organs, but its precise role is little known in the mammary gland. Our initial experiment showed that IL-10 expression levels in mice decreased at the lactation stage otherwise increased at the involution stage. To reveal the effects of IL-10 on the involution of mammary gland, expression profiles of the apoptosis-related genes were examined in transgenic mice expressing human IL-10 as well as in knock-out mice (IL-10-/-). Mild inflammatory legions by lymphocytes were observed in the mammary glands of transgenic lines at the lactation stage. The expression of TRAIL (Tumor necrosis factor-Related Apoptosis-Inducing Ligand) among the apoptosis-related genes was highly elevated in the transgenic mice while others were not significantly changed. Furthermore, TRAIL was down regulated by four fold in the IL-10-/- mice at the involution stage. The expression of DR4 was elevated at the involution stage of normal mice. DR4 was detected in the milk of transgenic mice but absent in that of normal mice. Our results proposed that the elevated IL-10 at the involution stage recruit lymphocytes and induce TRAIL and DR4 genes, therefore, lead to enter involution stage of mammary glands.

• Asian Pacific Journal of Cancer Prevention
• /
• v.15 no.22
• /
• pp.9939-9943
• /
• 2014

Lobaplatin, one of the third - generation platinum compounds, has shown encouraging anticancer activity in a variety of tumor types. However, the efficacy of lobaplatin in ovarian cancer has not been systemically evaluated. In this study, lobaplatin as a single agent and in combination with taxanes was investigated in - vitro and in an in vitro model of ovarian carcinoma. Using the sulforhodamine B (SRB) assay, the cytotoxic effects of lobaplatin alone and in combination with taxanes were compared with cisplatin and carboplatin in seven ovarian cancer cell lines. In addition, in - vitro antitumor activities were evaluated with cisplatin - sensitive and cisplatin - resistant human ovarian cancer xenografts in nude mice. The cytotoxicity of lobaplatin was similar to or higher than that of cisplatin and carboplatin, with $IC_{50}$ values from 0.9 to $13.8{\mu}mol/L$ in a variety of ovarian cancer cells. The combination of lobaplatin with docetaxel yielded enhanced cytotoxic activity in vitro. In addition, in platinum - sensitive ovarian cancer xenografts, lobaplatin alone showed similar antitumor activity to cisplatin and carboplatin. Furthermore, lobaplatin alone or in combination with docetaxel exhibited significant activity in platinum - resistant ovarian cancer xenografts. These results indicate that the use of lobaplatin alone or in combination with docetaxel might be a rational and novel therapeutic strategy for ovarian cancer. Further clinical development of lobaplatin is clearly warranted.

• Asian Pacific Journal of Cancer Prevention
• /
• v.14 no.1
• /
• pp.63-68
• /
• 2013

Background: Tumor angiogenesis correlates with recurrence and appears to be a prognostic factor for both breast and prostate cancers. In the present study, we aimed to investigate the correlation of microvessel density (MVD), a measure of angiogenesis, with nuclear pleomorphism, mitotic count, and vascular invasion in breast and prostate cancers at preclinical and clinical levels. Methods: Samples from xenograft tumors of luminal B breast cancer and prostate adenocarcinoma, established by BT-474 and PC-3 cell lines, respectively, and commensurate human paraffin-embedded blocks were obtained. To determine MVD, specimens were immunostained for CD-34. Nuclear pleomorphism, mitotic count, and vascular invasion were determined using hematoxylin and eosin (H&E)-stained slides. Results: MVD showed significant correlations with nuclear pleomorphism (r=0.68, P=0.03) and vascular invasion (r=0.77, P=0.009) in breast cancer. In prostate cancer, MVD was significantly correlated with nuclear pleomorphism (r=0.75, P=0.013) and mitotic count (r=0.75, P=0.012). In the breast cancer xenograft model, a significant correlation was observed between MVD and vascular invasion (r=0.87, P=0.011). In the prostate cancer xenograft model, MVD was significantly correlated with all three parameters (nuclear pleomorphism, r=0.95, P=0.001; mitotic count, r=0.91, P=0.001; and vascular invasion, r=0.79, P=0.017; respectively). Conclusions: Our results demonstrate that MVD is correlated with nuclear pleomorphism, mitotic count, and vascular invasion at both preclinical and clinical levels. This study therefore supports the predictive value of MVD in breast and prostate cancers.

• Food Science of Animal Resources
• /
• v.23 no.1
• /
• pp.80-85
• /
• 2003

This study was carried out to investigate antimicrobial and antitumoral activities of Candida kefyr TFP7 isolated from Tibetan fermented milk Strains of TFP1∼10 were isolated from Tibetan fermented milk by agar diffusion method using potato dextrose agar(PDA). Antimicrobial activities were examined against 18 microorganisms of food-related bacteria, yeast, algae, fungi and actinomycetes isolated from soil. Antitumor activities were examined against 9 human tumor cell lines. Strains of TFP2∼10 showed strong antimicrobial activities against Micrococcus luteus ATCC l1880, and strains of TFP6∼10 to actinomycetes, Streptomyces murinus JCM 4333. In antitumor test, all isolated strains(TEP1∼10) showed the growth inhibition of SNU-5 and SW-534 by 60% and 70%, respectively. Among those, the strain TFP7 showed the most antitumor activity, which was 77.5% for SNU-5 and 76.5% for SW-534. The strain was identified as Candida kefyr by use of API 20C AUX kit and scanning electron micrograph.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
• /
• v.17 no.1
• /
• pp.131-142
• /
• 2004

The purpose of this research was to investigate cytotoxity of Sunbanhwalmyungeum extract. Cytotoxity was determined by MTT assay method. After tumor cell lines(G361, BI6F10, MDA, A549) transplantation, the extracts of SunBangHwalMyungEum and its composition oriental medicines were administered, cytotoxity was measured by absorbance. The results were obtained as follows. 1. Sunbanhwalmyungeum extract and its composition oriental medicines extracts showed the concentration was higher, the more cytotoxity increased. 2. Both water and ethanol extracts of Sunbanhwalmyungeum showed excellent cytotoxity against G361, B16F10, MDA, A549 and high cytotoxity over 80$\%$ against G361, B16F10, MDA except A549 at the concentration of 1000ppm. 3. In water extract, Rhei Radix et Rhizoma, Gleditsiae Spina, Trichosanthis Radix, Glycyrrhizae Radix, Ledebouriellae Radix showed excellent cytotoxity. In ethanol extract, Gleditsiae Spina, Citri Pericarpium, Trichosanthis Radix, Paeoniae Radix Rubra, Myrrha showed excellent cytotoxity. 4. Rhei Radix et Rhizoma, Gleditsiae Spina, Trichosanthis Radix, Paeoniae Radix Rubra showed high cytotoxity in both water and ethanol extrats. 5. In water extract, Glycyrrhizae Radix, Ledebouriellae Radix, Myrrha showed high cytotoxity against A361, Lonicerae Flos, Olibanum, Fritillariae cirrhosae Bulbus, Paeoniae Radix Rubra, Manitis Squama against B16F10, Paeoniae Radix Rubra, Manitis Squama against MDA, Rhei Radix et Rhizoma, Angelicae gigantis Radix against A549. 6. In ethanol extract, Lonicerae Flos, Trichosanthis Radix showed high cytotoxity against G361, Rhei Radix et Rhizoma, Angelicae gigantis Radix, Gleditsiae Spina, Olibanum, Angelicae dahuricae Radix, Fritillariae cirrhosae Bulbus, Paeoniae Radix Rubra, Glycyrrhizae Radix, Ledebouriellae Radix, Myrrha against B16F10, Rhei Radix et Rhizoma, Manitis Squama against MDA, Citri Pericarpium, Manitis Squama against A549.

• Biomolecules & Therapeutics
• /
• v.18 no.1
• /
• pp.92-98
• /
• 2010

Breast cancer has been estimated as one of the most common causes of cancer death among women. The major cause of death from breast cancer is the metastatic spread of the disease from the primary tumor to distant sites in the body. Lycopene is one of the major carotenoids in fruits and vegetables including tomatoes. Epidemiological studies have shown that the dietary intake of lycopene is associated with decreased risk of cancer. Although mounting evidence shows the chemopreventive effect of lycopene, the role of lycopene in the prevention of metastatic potential of breast cancer has not been determined yet. In the present study, we investigated the inhibitory effect of lycopene on invasive and migratory phenotypes of two highly aggressive breast cancer cell lines, H-Ras-transformed MCF10A human breast epithelial cells (H-Ras MCF10A) and MDA-MB-231 human breast cancer cells. Here, we report that lycopene significantly inhibits invasion and migration as well as proliferation of H-Ras MCF10A and MDA-MB-231 cells. This study suggested an in vitro anti-cancer and anti-metastatic potential of lycopene. We also showed that activations of ERKs and Akt were inhibited by lycopene in H-Ras MCF10A cells, suggesting that the ERKs and Akt signaling pathways may be involved in lycopene-induced anti-proliferative and/or anti-invasive/migratory effects in these cells. Taken in conjunction with the fact that breast cancer metastasis is one of the most lethal malignancies in women, our findings may provide useful information for the application of lycopene in establishing strategy to prevent the metastatic breast cancer.

• THE JOURNAL OF KOREAN ORIENTAL ONCOLOGY
• /
• v.1 no.1
• /
• pp.167-190
• /
• 1995

Bikiwhan is one of the oriental medicines that have been used for the treatment of tumors since ancient times. However, the mechanism of the drug action is not closely surved. This study was made to investigate the effects of Bikiwhan on the innate immunity were analysed by measuring the functions of phagocytes, and those of specific immunity were analysed by measuring T and B cells activities. The followings are the results obtained from this study : 1. Bikiwhan has direct cytotoxic effects against human lymphoma cell lines (K562) in a dose dependent manner. 2. An administration of Bikiwhan increased allogenic immune response in the mouse. 3. An administration of Bikiwhan increased the antibodies formation against SRBC. 4. An administration of Bikiwhan enhanced the apperance of rosette forming cells in the spleen. 5. An administration of Bikiwhan decreased the delayed-type hypersensitivity against dinitrofluorobenzene. 6. An administration of Bikiwhan has no effect on natural killer cells. 7. Bikiwhan increased the phagocyte activity of peritoneal macrophages in vitro and in in vivo as well. 8. Bikiwhan depressed the formation of reactive oxygen intermediated in vitro and in vivo as well. 9. Bikiwhan has the capacity to make peritoneal macrophages secrete nitric oxide. The above results demonstrate that Bikiwhan has enhancing effects of immune responses against tumors by decreasing tissue demages caused by immune responses.