• 제목/요약/키워드: cytotoxic agent

검색결과 318건 처리시간 0.026초

Isolation of a Cytotoxic Agent from Asiasari Radix

  • Park, Jong-Dae;Baek, Nam-In;Lee, You-Hui;Kim, Shin-Il
    • Archives of Pharmacal Research
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    • 제19권6호
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    • pp.559-561
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    • 1996
  • A minor cytotoxic compound was isolated by bioassay-guided fractionation from Asiasari Radix and identified as aristolactam III(1) on the basis of spectral data and chemical evidence. This is the first report on the isolation of compound 1 from Asiasarum genus. Compound 1 exhibited a significant cytotoxic activity against the three kinds of human cancer cell lines (A 549, SK-MEL-2 and SK-OV-3).

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Cytotoxic Activity of Leguminous Seed Extracts against Human Tumor Cell Lines

  • Lee, Hoi-Seon;Lee, Jeong-Ock;Lee, Hee-Kwon;Oh, Jong-Hwan;Ahn, Young-Joon
    • Applied Biological Chemistry
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    • 제41권4호
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    • pp.246-250
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    • 1998
  • The cytotoxic activity of methanol extracts of 25 leguminous seeds in vitro was evaluated by sulforhodamine B assay, using the five human solid A549 lung, SK-OV-2 ovarian, SK-MEL-2 melanoma, XF-498 CNS and HCT-15 colon tumor cell lines. The responses varied with both cell line arid leguminous seed used. Extracts of Canavalia lineata and Glycine soja revealed potent cytotoxic activity against A549 arid SK-MEL-2 cell lines. Moderate activity was observed in the extracts of Cassia obtusifolia and Glyeine max var. chungtae, and C. lineata and Vigna angulasis against SK-MEL-2 and HCT-15 cell lines, respectively. The other seed extracts were ineffective against model tumor cell lines. Because of their potent cytotoxic activities, the activity of each solvent fraction from C. lineata and G. soja was determined and the potent activity was produced from their chloroform fractions. As a naturally occurring therapeutic agent, leguminous seeds described could be useful for developing new types of anti-tumor agents.

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Physicochemical Characterization and Cytotoxic Screening of Diterpene acid

  • Choi Eun Young;Lim Jin A;Lee Jae Sug;Yu Byung Soo;Baek Seung Hwa
    • 동의생리병리학회지
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    • 제18권6호
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    • pp.1856-1859
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    • 2004
  • The diterpene acid (1) was tested for its growth inhibitory effects against tumor cell lines using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Full assignments of the 1D/2D-NMR data of the compound (1) are reported. These results suggest that the diterpene acid (1) possessed a cytotoxic agent.

선복화 (Inula japonica)추출물의 암세포주에 대한 In Vitro 세포독성 (Cytotoxic Activity of the Inula japonica Extracts Against Several Human Cancer Cell Lines In Vitro)

  • 차미란;김주영;황지환;박해룡
    • 생약학회지
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    • 제37권3호
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    • pp.130-135
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    • 2006
  • The present study describes the preliminary evaluation of the cytotoxic activity of the extracts from Inula japonica. I. japonica was extracted with methanol, ethanol, acetone, and water, and then cytotoxic activity of these extracts were evaluated. The cytotoxic activity of each extract was assessed by the MTT-dye reduction assay. Both ethanol and acetone extracts from I. japonica showed the cytotoxic activity against the HT-29 human colon cancer cells. Furthermore, the ethanol extract was fractionated with n-hexane, diethyl ether, ethyl acetate, and water according to degree of Polarity, The diethyl ether fraction showed the highest cytotoxic activity against HT-29 cells, but the other fractions showed low cytotokic activity. In addition, diethyl ether layer also showed the cytotoxic activity against various tumor cells, such as human colon carcinoma SW620, human cervix adenocarcinoma HeLa, and human breast adenocarcinoma MCF-7 cells as well as HT-29 cells. These studies support that extracts of I. japonica may be a potential candidate as possible chemotherapeutic agent against human cancer.

Rhanella aquatilis 유래 당단백질과 항암제 혼합물에 의한 인체 대장암 HT29세포에 대한 항암상승효과 (Synergistic Anticancer Activity of a Mixture of Anticancer Agent with Proteoglycan from Rhanella aquatilis against Human Colon Cancer Cell HT29)

  • 박혜지;김광현
    • 한국미생물·생명공학회지
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    • 제41권3호
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    • pp.379-382
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    • 2013
  • Rhanella aquatilis AY2000 균주가 생산하는 일종의 당단백질인 항효모성 물질 (AYS)에 대한 항암활성을 조사하기 위해 in vitro에서 암세포에 대한 AYS의 세포독성을 조사하였다. 그 결과 AYS는 인체의 Jurkat T 세포와 마우스의 sarcoma 180 세포에 대해서는 세포독성을 나타내지 않았으나, 인체 대장암세포인 colon cancer TH20 세포에는 세포독성을 나타내었다. 또한 이 AYS는 62.5에서 500 ${\mu}g/ml$까지 농도의존적으로 인체대장암세포에 대해 세포독성을 증가시켰다. 뿐만 아니라 이 AYS와 시판 항암제를 혼합하여 처리한 결과 시판 항암제를 단독으로 처리한 것 보다 인체대장암세포에 대한 항암효과가 더욱 상승되었다.

어성초 돌콩 추출물의 항암활성 및 항산화 활성 효과 (Effects of Cytotoxic and Antioxidant of Methanol Extracts from Medicinal Plants)

  • 이정호;김윤경;최문일
    • 한방안이비인후피부과학회지
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    • 제18권3호
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    • pp.37-43
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    • 2005
  • This study was performed to determine the cytotoxic effect of methanol extract from Houttuynia Cordata and Glycine soja. The cell viability was determined by MTT method. Their cytotoxic activities against three cancer cell lines such as A549, MDA-MB-231 and SNU-C4 cell line were tested. Among them, The methanol extract of Houttuynia Cordata showed the strongest cytotoxic effect against SNU-C4 cells. These results suggest that the methanol extract of Houttuynia Cordata possessed a potential antitumorous agent. The free radical scavenging activity using DPPH method was the strongest of Houttuynia Cordata methanol extract and ethyl acetate fraction.

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Cytotoxic Effects of Methanol Extracts from Medicinal Plants on Cancer Cell Lines

  • Lee, Jeong-Ho;Chun, Hyun-Ja;Lee, Ki-Nam;Lim, Jin-A;Ryu, Hyeong-Won;Baek, Seung-Hwa
    • 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.210.3-210.3
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    • 2003
  • This study was performed to determine the cytotoxic effect of methanol extract from medicinal plants. The cell viability was determined by the MTT method. Their cytotoxic activities against three cancer cell lines such as A549, MDA-MB-231 and SNU-C4 cell line were tested. Among them, The methanol extract of Saururus Chinensis Bail showed the strongest cytotoxic effect against SNU-C4 cells. These results suggest that the methanol extract of Saururus Chinensis Bail possessed a potential antitumorous agent

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Gemtuzumab ozogamicin과 항체공학 (Gemtuzumab ozogamicin and Antibody Engineering)

  • 김은영
    • 한국임상약학회지
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    • 제19권2호
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    • pp.89-95
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    • 2009
  • Gemtuzumab ozogamicin (GO) is an antibody-targeted chemotherapeutic agent consisting of calicheamicin, a potent cytotoxic antibiotic linked to a recombinant humanized anti CD33 monoclonal antibody directed against the CD33 antigen present on leukemic myeloblasts in most patients with acute myeloid leukemia (AML). GO is indicated for the treatment of patients with CD33 positive AML in first relapse who are 60 years of age or older and who are not considered candidates for cytotoxic chemotherapy. GO has shown moderate activity as a single agent in patients with CD33-positive refractory or relapsed acute myeloid leukaemia, with more promising results in acute promyelocytic leukaemia. The side effect profile may be an improvement on conventional chemotherapy, except for a higher frequency of veno-occlusive disease or sinusoidal obstructive syndrome, especially after a subsequent haematopoietic stem cell transplantation. Because of the different mechanisms of action and non-overlapping toxicities, the integration of this immunoconjugate with standard chemotherapy is a rational approach.

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강진향(降眞香)의 항암활성 성분 (Isolation of Antitumor Agent from the Heartwood of Dalbergia odorifera)

  • 박종대;이유희;백남인;김신일;안병준
    • 생약학회지
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    • 제26권4호
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    • pp.323-326
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    • 1995
  • Through bioassay-guided separation of the chemical constituents from the heartwood of Dalbergia odorifera, an 2'-O-methoxyisoliquiritigenin(1) was isolated as cytotoxic principle. 1 showed potent cytotoxic activity against the three kinds of human cancer cell lines (A-549, SK-MEL-2 and SK-OV-3) with similar activity to 5-Fluorouracil.

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항종양활성천연약물연구의 전망 (DISCOVERY OF NEW ANTITUMOR AGENTS FROM MEDICINAL PLANTS)

  • 히데치
    • 한국자원식물학회지
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    • 제5권2호
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    • pp.73-84
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    • 1992
  • Many types of compounds have been isolated from higher plants till now, that is, alkaloids, terpenes, lignans, steroids and so on. One of them, named as RA series Cyclic hexapeptides isolated from Rubia akane and R. cordijofia also have strong antineoplastic activity against various types of tumors. Till now 10 kinds ofRA series compounds were isolated and named as RA - I, II, III, IV, V, VI, VII, VIII, IX and X. Moreover,monogl-ucoside of RA - V newly Isolated from same plant. Many kinds of derivatives including natural RAcompounds were tested for QSAR, and one of them, RA - VII was screened up as a most suitable substance asan antitumor agent. RA - VII(=RA-700) has strong cytotoxic activity against KB cells, P388 Iymphocyticleukemia and MM2 mammary carcinoma cells. RA - VII has been under investigation for Phase I clinical trials.

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