title: Cytotoxic activity of chalcones isolated from lonchocarpus sericeus (pocr.) kunth.
abstract: In the present study, it was demonstrated that the hexanic extract obtained from the roots of Lonchocarpus sericeus and one of its major components, derricin, but not lonchocarpin, show cytotoxic activity to fertilized sea urchin eggs. Both inhibited the first cleavage of sea urchin eggs in a dose-dependent manner with an IC(50) of 30.4 (26.2-35.3) microgram/mL for the crude extract and 51.2 (42.1-62.3) microgram/mL for derricin (n = 6, in both cases). Furthermore, the hexanic extract of L. sericeus, and the isolated compounds, derricin and lonchocarpin showed cytotoxicity against CEM leukaemic cell line (IC(50) = 17.6 (13.7-22.6), 13.0 (12.0-14.0) and 10.4 (5.6-19.1) microgram/ml (n = 6), respectively). When these substances (6.25 to 125 microgram/25 microL) were examined for antimicrobial activity against Escherichia coli, Staphylococcus aureus and Candida albicans, none of them were found to be active. Neither the hexanic extract, nor the isolated compounds derricin and lonchocarpin (0.5 to 250 microgram/mL) presented hemolytic activity. These results indicated a possible antimitotic activity of L. sericeus crude extract and their major constituents.
authors.affiliation: Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil.
authors.forename: Geanne M de Andrade
authors.initials: GM
authors.lastname: Cunha
authors.forename: Juvenia Bezerra
authors.initials: JB
authors.lastname: Fontenele
authors.forename: Hélio V
authors.initials: HV
authors.lastname: Nobre Júnior
authors.forename: Francisco C M
authors.initials: FC
authors.lastname: De Sousa
authors.forename: Edilberto R
authors.initials: ER
authors.lastname: Silveira
authors.forename: Nádia A P
authors.initials: NA
authors.lastname: Nogueira
authors.forename: Manoel Odorico
authors.initials: MO
authors.lastname: De Moraes
authors.forename: Glauce S B
authors.initials: GS
authors.lastname: Viana
authors.forename: Letícia V
authors.initials: LV
authors.lastname: Costa-Lotufo
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D000970:Antineoplastic Agents / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D002176:Candida albicans / Q000187:drug effects; D047188:Chalcones / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D004305:Dose-Response Relationship, Drug; D004926:Escherichia coli / Q000187:drug effects; D045782:Hemiterpenes / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D006461:Hemolysis / Q000187:drug effects; D006801:Humans; D020128:Inhibitory Concentration 50; D008826:Microbial Sensitivity Tests; D033641:Millettia; D008517:Phytotherapy; D010936:Plant Extracts / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D018517:Plant Roots; D012617:Sea Urchins / Q000187:drug effects; D013211:Staphylococcus aureus / Q000187:drug effects; D014407:Tumor Cells, Cultured / Q000187:drug effects
chemical_list: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D000970:Antineoplastic Agents; D047188:Chalcones; D045782:Hemiterpenes; D010936:Plant Extracts; C000604275:derricin