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Biological Activity Topoisomerase-I-Inhibitor

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List of activity chemicals.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Chemical Name Dosage Reference
MAKALUVAMINE-G IC50=3 uM Carney, J. R., Scheuer, P. J., Kelly-Gorges, M. 1993. Makaluvamine G, a Cytotoxic Pigment From an Indonesian Sponge Histodermella sp. Tetrahedron, 49: 8483-8486.
MENADIONE 1 ug/mL Frydman, B., et al. 1997. Induction of DNA Topoisomerase II-Mediated DNA Cleavage by Beta-lapachone and Related Naphthoquinones. Cancer Research, 57: 620-627.
MITOMYCIN-C not available Zhang, W. S., Lin, Z. K., Huang, X. T. 1990. Effect of Some Nonintercalative Antitumor Drugs on the Activity of Calf Thymus DNA Topoisomerase I. Yao Hsueh Hsueh Pao, 25: 641-645.
MONOMARGINE 10 ug/ml Mahmood, K., Pais, M., Fontaine, C., Ali, H. M., Hamid, A., Hadi, A., Guittet, E. 1993. Monomargine, a Nitrogenous Cytotoxic Pigment From Monocarpia marginalis. Tetrahedron Letters, 34: 1795-1796.
MORIN IC50=42.1 ug/ml (weak activity) Constantinou, A., Mehta, R., Runyan, C., Rao, K., Vaughan, A., Moon, R. 1995. Flavonoids as DNA Topoisomerase Antagonists and Poisons: Structure-Activity Relationships. J Natural Products, 58: 217-225.
MYRICETIN IC50=11.9 ug/ml Duke, 1992 *
NARINGENIN not available Santti, R., Makela, S., Strauss, L., Korman, J., Kostian, M. L. 1998. Phytoestrogens: Potential Endocrine Disruptors in Males. Toxicol Ind Health, 14: 223-237.
NEOAMPHIMEDINE not available De Guzman, F. S., et al. 1999. Neoamphimedine: A New Pyridoacridine Topoisomerase II Inhibitor Which Catenates DNA. J Org Chem, 64: 1400-1402.
NITIDINE 0.15 uM Duke, 1992 *
NORHARMAN ED50=34.4 ug/ml (weak activity) Funayama, Y., Nishio, K., Kabayashi, K., Nagao, M., Shimoi, K., Ohira, T., Hasegawa, S., Saijo, N. 1996. Effects of Beta- and Gamma-carboline Derivatives on DNA Topoisomerase Activities. Mutat Research, 249: 183-191.
NOVOBIOCIN 150 uM Constantinou, A., Henning-Chubb, C., Huberman, E. 1989. Novobiocin- and Phorbol-12 myristate-13-acetate-Induced Differentiation of Human Leukemia Cells Associated with a Reduction in Topoisomerase II Activity. Cancer Research, 49: 1110-1117.
PEDUNCULAGIN 0.03 ug/ml Ooishi, K., Kato, J., Hayamizu, K. 1994. Topoisomerase Inhibitors Containing Tannins, Especially Pedunculagin, for Treatment of Cancer. Patent, Japan Kokai Tokkyo Koho-06 72,885. 7pp.
QUERCETIN IC50=12.8 ug/ml Duke, 1992 *
QUERCETIN IC50=42 uM Duke, 1992 *
RABDOSIN 50 uM Kashiwada, Y., Bastow, K. F., Lee, K. H. 1995. Novel Lignan Derivatives as Selective Inhibitors of DNA Topoisomerase II. Bioorg Med Chem Lett, 5: 905-908.
RUBRAXANTHONE IC50=60 ug/ml Iinuma, T., Nozaki, H. 1998. Antitumor Agents Containing Xanthones as Topoisomerase Inhibitors. Patent, Japan Kokai Tokkyo Koho-10 203,977. 10pp.
SANGUIIN-H-6 IC50=0.02-5 uM Bastow, K.F., Bori, I.D., Fukushima, Y., Kashiwada, Y., Tanaka, T., Nonaka, G., Nishioka, I., Lee, K.H. 1993. Inhibition of DNA Topoisomerases by Sanguiin H-6, a Cytotoxic Dimeric Ellagitannin From Sanguisorba officinalis. Planta Medica, 59: 240-245.
SANSALVAMIDE-A IC50=124 um Duke, 1992 *
VELUTIN 0.1 ug/ml Zahir, A., Jossang, A., Bodo, B., Provost, J., Cosson, J. P., Sevenet, T. 1996. DNA Topoisomerase I Inhibitors: Cytotoxic Flavones From Lethedon tannaensis. J Natural Products, 59: 701-703.
WAKAYIN 6.7 nM Kokoshka, J. M., Capson, T. L., Holden, J. A., Ireland, C. M., Barrows, L. R. 1996. Differences in the Topoisomerase I Cleavage Complexes Formed by Camptothecin and Wakayin, a DNA-Intercalating Marine Natural Product. Anticancer Drugs, 7: 758-765.
List of Activity Plants.
Click on column headings to sort table by that column.
Plant Name Common Name Chemical Count Total Parts Per Million
Centrosema sagittatum not available 1 0
Centrosema schiedianum not available 1 0
Ceratonia siliqua Carob; St.John's-Bread; Locust Bean 3 0
Chamaecytisus albus not available 1 0
Chamaecytisus eriocarpus not available 1 0
Chamaecytisus hirsutus not available 1 0
Chamaecytisus ratisbonensis not available 1 0
Chamaecytisus smyrnaeus not available 1 0
Chamaecytisus supinus not available 1 0
Chamaemelum nobile Garden Camomile; Perennial Camomile; Roman Camomile 2 0
Chamaespartium sagittale not available 1 0
Chamaespartium tridentatum not available 1 0
Chamaesyce hypericifolia Spurge 1 0
Chelidonium majus Celandine 1 0
Chimaphila umbellata King's Cure; Pipsissewa 1 0
Chronanthus biflorus not available 1 0
Chrysanthemum x morifolium Chrysanthemum; Florist's Chrysanthemum; Mum; Ju Hua (Pinyin) 2 0
Cicer arietinum Chickpea; Garbanzo 4 184.39999389648438
Cichorium endivia Endive; Escarole 1 0
Cichorium intybus Chicory; Witloof; Succory 5 66