• 제목/요약/키워드: HL-60 Cells

검색결과 343건 처리시간 0.032초

EFFECT OF SELENIUM COMPOUNDS ON CHEMOPREVENTION AND TUMOR INVASION

  • Chung, An-Sik;Uhee Jung;Yoon, Sang-Oh
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2001년도 International Symposium on Dietary and Medicinal Antimutgens and Anticarcinogens
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    • pp.11-12
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    • 2001
  • Selenium is known to have both chemopreventive and therapeutic benefits of cancer. Recent studies have implicated that apoptosis is one of the most plausible mechanism of chemopreventive effects of selenium compounds and tumor invasion is a new factor involved in chemotherapy. In the present study, we demonstrate that Se-methylselenocysteine(MSC), one of the most effective selenium compound sat chemoprevention, induces apoptosis in HL-60 cells and that ROS plays a crucial role in MSC-induced apoptosis.(omitted)

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CHEMOPREVENTIVE EFFECTS IN MOUSE SKIN CARCINOGENESIS AND INDUCTION OF APOPTOSIS IN HUMAN PROMYELOCYTIC LEUKEMIA(HL-60) CELLS BY XANTHORRHIZOL

  • Kim, Heui-og;Chung, Won-Yoon;Park, Min-Ah;Kim, Mi-Jeong;Park, Jae-Hee;Park, Kwang-Kyun
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2001년도 International Symposium on Dietary and Medicinal Antimutgens and Anticarcinogens
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    • pp.141-142
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    • 2001
  • Curcuma xanthorrhiza Roxb(Zingiberaceae) has been traditionally used in Indonesia for dietry and medicinal purposes. Xanthorrhizol is a sesquiterpenoid isolated from C. xanthorrhiza that has been known to possess anti-inflammatory and anticarcinogenic defects.(omitted)

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Cytotoxic Coumarins from the Root of Angelica dahurica

  • Thanh, Pham Ngoc;Jin, Wen-Yi;Song, Gyu-Yong;Bae, Ki-Hwan;Kang , Sam-Sik
    • Archives of Pharmacal Research
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    • 제27권12호
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    • pp.1211-1215
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    • 2004
  • Ten coumarins were isolated from the root of Angelica dahurica by repeated silica gel column chromatography. Their chemical structures were elucidated on the basic of physicochemical and spectroscopic data. Among them, oxypeucedanin hydrate acetonide (7) was isolated for the first time from this plant. Cytotoxicity of coumarins isolated were determined in vitro against L1210, HL-60, K562, and B16F10 tumor cell lines by MTT method. Pangelin (5) and oxypeucedanin hydrate acetonide (7) showed a potent cytotoxic activity with the $IC_{50}$ values of 8.6 to 14.6 ${\mu}g$ /mL against four kinds of tumor cell lines. Other compounds showed the moderate cytotoxic activity or no activity against the tumor cell lines.

2-Arylethenylchronlones유도체의 합성 및 항암활성 검색 (2-Arylethenylchromone Derivatives : Synthesis and Anticancer Activity)

  • 문창상;이경원;이지용;이재열;정봉영;이경태;이용섭
    • 약학회지
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    • 제47권6호
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    • pp.376-381
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    • 2003
  • 2-Arylchromones, also known as flavones, are among the most ubiquitous classes of natural products occurring in the plant kingdom. On the other hand, 2-styrylchromones are relatively scarce in nature and only a few compounds has been isolated from the blue-green algae species. Therefore, new 2-arylethenylchromone derivatives ( 4a∼n, 5a∼f) were synthesized by the aldol condensation of 2-methylchromone ( 3) with several aromatic aldehydes in order to evaluate their cytotoxicities using a MTT assay on three tumor cells. 2-Arylethenylchromone derivative 4a showed the significant cytotoxic activities on KB, HL-60 and P-388 cell lines with $IC_{50}$/ values of 25.2, 63.59 and 49.51 $\mu$M, respectively, indicating that 2-arylethenylchromone skeleton has a potential anti-tumor application.

Modulation of Cytochrome P450 1B1 Expression by A Stilbene Analog and its Effect on the Sensitivity to Anticancer Agents in Human Cancer Cells.

  • Lee, Sang-Kwang;Park, Sung-Sik;Kim, Mie-Young;Chun, Young-Jin
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
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    • pp.209.1-209.1
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    • 2003
  • We have previously shown that 2, 3', 4, 5' -tetramethoxystilbene(TMS) from synthetic trans-stilbene analogues, is one of the most potently selective inhibitor of recombinant human cytochrome P450 1B1 in vitro. In the present studies. the effects of TMS on the expression of cytochrome P450 1B1 were investigated in human cancer cell lines such as MCF-7 and HL -60. TCDD-stimulated P450 1B1 protein and mRNA expression was significantly suppressed by TMS in a dose-dependent manner. (omitted)

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Induction of cell cycle arrest and apoptosis by an indirubin analog, a CDK inhibitor, in human lung cancer cells

  • Lee, Jong-Won;Moon, Myung-Ju;Kim, Yong-Chul;Lee, Sang-Kook
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
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    • pp.91.2-91.2
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    • 2003
  • Cyclin-dependent kinases (CDKs) regulate the cell division cycle, apoptosis, transcription and differentiation. Inhibition of CDK is a promising target in development of anti-cancer agents. An indirubin analog (AGM01l), a CDK inhibitor, is a synthetic compound that inhibits human cancer cell growth in vitro. AGM01l showed a potent cytotoxicity in cultured human cancer cell lines (IC$\sub$50/ = 5.43 ${\mu}$M for A549, human colon cancer cell; IC$\sub$50/ = 1.21 ${\mu}$M for SNU-638, human stomach cancer cell; IC$\sub$50/ 9.23 ${\mu}$M for HL-60, human leukemia cell). (omitted)

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Involvement of Akt in mitochondria-dependent apoptosis induced by a naphthoquinone analog

  • Kang, Seung-Koo;Kim, Hae-Jong;Chun, Young-Jin;Kim, Mie-Young
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
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    • pp.158.2-158.2
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    • 2003
  • Vitamin K-related analogs induce growth inhibition in various cancer cell lines. We report that 2,3-dichloro-5,8-dihydroxy-1, 4-naphthoquinone (DDN), a naphthoquinone analog, induces mitochondria-dependent apoptosis in human promyeloid leukemic HL-60 cells. DDN induced cytochrome c release, cleavage of Bid, and activation of caspases -8, -9 and -3. Cleavage of Bid, the caspase-8 substrate, was inhibited by the broad caspase inhibitor zVAD-fmk, whereas cytochrome c release was not affected by zVAD-fmk. (omitted)

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Antioxidative effect and anti-apoptosis effect of extract from Betula platyphylla var. japonica

  • Ju, Eun-Mi;Kwon, Hee-Young;Kim, Jeong-Hee
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
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    • pp.157.3-158
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    • 2003
  • The antioxidant and anticancer properties of a medicinal plant, Betula platyphylla var. japonica were investigated. The total methanol extract of B. platyphylla var. japonica had protective effects against hydrogen peroxide ($H_2O_2$) in the Chinese hamster lung fibroblast (V79-4) cell line and induced apoptotic cell death in human promyelocytic leukemia (HL-60) cells, a cancer cell line. B. platyphylla var. japonica extract significantly increased cell viability against $H_2O_2$. The extract also showed high 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity ($IC_50$ 2.4 mg/ml) and lipid peroxidation inhibitory activity ($IC_50$ below 4.0 mg/ml). (omitted)

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