• Title/Summary/Keyword: Antitumor Effect

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Isolation and Evaluation of an Antitumor Constituent from Pyrolae Herba (녹수초의 항암활성물질의 분리 및 항암력 평가)

  • Bae, Ki-Hwan;Kim, Hwan-Mook;Lee, Sang-Myung
    • YAKHAK HOEJI
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    • v.40 no.2
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    • pp.225-229
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    • 1996
  • The cytotoixic effect of Pylorae Herba (Pyrola japonica Klenze) against L1210 and K-562 cells was studied in vitro. The methanolic extract of Pylorae Radix was add ed to the culture of L1210 cells and K-562 cells for the cytotoxic activity and the ED50 values of hexane, ethylacetate, buthanol and water fractions from methanolic extract were determined using MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazoliumbromide) assay. The active constituent isolated by bioassay guided fractionation followed by purification gave rise to a yellow needle crystal and was clarified to be chimaphilline by the comparison with the published data. The average life spans with it were not prolonged significantly on tumor growth in hybrid female mouse (BDF1-KIST) inoculated subcutaneously with P388 cells.

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Isolation of Isoguanosine from Croton tiglium and Its Antitumor Activity

  • Kim, Jung-Han;Lee, Sang-Jun;Han, Young-Bok;Moon, Jung-Jo;Kim, Jong-Bae
    • Archives of Pharmacal Research
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    • v.17 no.2
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    • pp.115-118
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    • 1994
  • This paper describes the isolation of isoguanosine from Croton tiglium L. and its cytotoxic effect anginst several tumor cell lines in culture and newly reports that isoguanosine has an antitumor activity against implanted S-180 ascitic turmor mice. Isoguanosine is effective at the dose of $24mg/kg/day{\times}5$, with T/C value of 168%. Isoguanosine inhibits the gorwth of S-180 and Ehrich solid tumor in mice at the optimal doses of $96\; mg/kg/day{\times}12$ and $48\;mg/kg/day{\times}12$, with 1-T/C values of 65% and 60% respecively.

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Study on Antitumor Activity of Bujeongyangeumtang(BJYET) (부정양음양(扶正養陰陽)의 항암활성(抗癌活性)에 관(關)한 연구(硏究)(I))

  • Song, Min-Ho;Choe, Bong-Gyun;Kim, Dong-Hee
    • Journal of Haehwa Medicine
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    • v.9 no.1
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    • pp.169-182
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    • 2000
  • To evaluate the antitumor activity and antimetastatic effects of Bujeongyangeumtang(BJYET), studies were done experimentally. The results were obtained as follows: 1. BJYET extracts exhibited a significant cytotoxicity against A549, SK-MEL-2, SK-OV-3 and B16-BL6 cell lines. 2. The T/C% was 118.2% in BJYET treated group in S-180 bearing ICR mice. 3. BJYET extracts exhibited inefficient adhesive effect of A549, B16-BL6 cell to complex extracellular matrix. 4. BJYET extracts showed a significant inhibition of lung metastasis of B16-BL6 cells in C57BL/6. 5. In vitro neovascularization assays, angiogenesis was significantly inhibited in BJYET treated group than control group. These results suggested that BJYET extracts might be usefully applied for prevention and treatment of cancer.

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Structure-antibiotic activity of cecropin A(1-8)-magainin 2(1-12), cecropin A(1-8)-melittin(1-12) hybrid peptides and their analogues studied by NMR spectroscopy

  • Donghoon Oh;Songyub Shin;Joohyun Kang;Hahm, Kyung-soo;Kim, Killyong;Kim, Yangmee
    • Proceedings of the Korean Biophysical Society Conference
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    • 1999.06a
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    • pp.32-32
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    • 1999
  • Cecropin A(1-8)-magainin 2(1-12) and cecropm A(1-8)-melittin(1-12) hybrid peptides were known to have potent antitumor and antibacterial activity. In particular, cecropm A(l-8)-magainin 2(1-12) has powerful antibacterial and antitumor activity with no hemolytic effect.(omitted)

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Cell Viability and Flow Cytometry Analysis of a Novel Antitumor Agent, Heptaplatin in Human Melanoma Cell Line, SK-MEL-28 (신규항암제인 Heptaplatin의 인체 흑색종세포(SK-MEL-28)에 대한 세포생존률 및 유세포 분석)

  • 최수라;명평근
    • YAKHAK HOEJI
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    • v.47 no.6
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    • pp.345-351
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    • 2003
  • Heptaplatin, cis-Malonato[(4R,5R)-4,5-bis(aminomethyl)-2-isopropyl-1,3-dioxolane]platinum(II), is a novel platinum-based antitumor agent with clinical potential against human stomach cancer and the 3rd generation of the cisplatin. This study was performed to study how cisplain, heptaplatin and sunpla which is a mixture of heptaplatin and mannitol (w: w=l : 2) affect cell viability of SK-MEL-28 human melanoma cell line. Heptaplatin ($IC_{50}$/; 95.35 $\mu$M) and sunpla ($IC_{50}$/; 10.95 11M) were less effect than cisplatin (IC $_{50}$; 10.92 $\mu$M) on the SK-MEL-28 cells. By cell cycle analysis using flow cytometry, it was identified that the cells were arrested at G2/M phase by cisplatin, heptaplatin and sunpla, and percentage of cell death group was increased according to increasing of time and concentration. These results suggest that cisplatin, heptaplatin and sunpla are a novel anticancer agent against human melanoma cell.l.

Antitumor activity of Acanthopanax senticosus extract and its possible immunological mechanism

  • Shin, Kwang-Soon;Yoo, Yung-Choon;Yoon, Taek-Joon
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.129.2-129.2
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    • 2003
  • Antitumor and immunomodulatory activities of an aqueous extract (GF100) of Acanthopanax senticosus was examined. In experimental lung metastasis of colon26-M3.l carcinoma cells, intravenous (i.v.) administration of GF100 2 days before tumor inoculation significantly inhibited lung metastasis in a dose-dependant manner. The i.v. administration of GF100 also exhibited the therapeutic effect on tumor metastasis of colon26-M3.1 cells, when it was injected 1 day after tumor inoculation. In an in vitro cytotoxicity analysis, GF100 enhanced the responsiveness to a mitogen, concanavalin A (ConA), of splenocytes in a dose-dependent manner. (omitted)

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