title: Cytotoxic action of Ganoderma lucidum on interleukin-3 dependent lymphoma DA-1 cells: involvement of apoptosis proteins.
abstract: Aqueous extracts and a semipurified fraction obtained by methanol extraction and column chromatography were isolated from Ganoderma lucidum [Ganoderma lucidum (Curtis) P. Karst.; Ganodermataceae Donk] and their effects on interleukin 3-dependent lymphoma cells (DA-1) were studied. Cell viability was reduced by the action of unboiled aqueous extract and by the methanol-extracted column-chromatography semipurified fraction, producing DNA fragmentation in DA-1 cells. Treatments with aqueous extracts showed increments of Bax after 13 h, increments of p53 and Mdm2 after 19 h and a reduction of these three proteins after 24 h. The methanol-extracted semipurified fraction also induced increments of p53 and Mdm2 factors at 19 h with a reduction after 24 h. The methanol-extracted column-chromatography semipurified fraction from Ganoderma lucidum produced minor changes in the level of Akt after treatments for 19 h in DA-1 cells with a slight reduction in the levels of NFkB-p65 factor. Both the unboiled aqueous extract and the methanol-extracted column-chromatography semipurified fraction produced cleavage of inactive caspase 3, as a clear indication of induction of apoptosis by compounds present in Ganoderma lucidum.
authors.affiliation: Departamento de Bioquímica y Biología Molecular, Campus Universitario, Universidad de Alcalá, Madrid, Spain.
authors.forename: Eva
authors.initials: E
authors.lastname: Calviño
authors.forename: Lucía
authors.initials: L
authors.lastname: Pajuelo
authors.forename: Jon A Ochoa de Eribe
authors.initials: JA
authors.lastname: Casas
authors.forename: José Luis
authors.initials: JL
authors.lastname: Manjón
authors.forename: M Cristina
authors.initials: MC
authors.lastname: Tejedor
authors.forename: Angel
authors.initials: A
authors.lastname: Herráez
authors.forename: Manuel Díez
authors.initials: MD
authors.lastname: Alonso
authors.forename: José C
authors.initials: JC
authors.lastname: Diez
mesh_terms: D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects; D051017:Apoptosis Regulatory Proteins / Q000378:metabolism*; D053148:Caspase 3 / Q000378:metabolism; D003603:Cytotoxins / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D053938:DNA Fragmentation / Q000187:drug effects; D007377:Interleukin-3 / Q000494:pharmacology; D008223:Lymphoma / Q000188:drug therapy / Q000473:pathology; D051379:Mice; D010766:Phosphorylation / Q000187:drug effects; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*; D051057:Proto-Oncogene Proteins c-akt / Q000378:metabolism; D051736:Proto-Oncogene Proteins c-mdm2 / Q000378:metabolism; D020940:Reishi / Q000737:chemistry*; D014407:Tumor Cells, Cultured; D016159:Tumor Suppressor Protein p53 / Q000378:metabolism; D051028:bcl-2-Associated X Protein / Q000378:metabolism
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D051017:Apoptosis Regulatory Proteins; D003603:Cytotoxins; D007377:Interleukin-3; D010936:Plant Extracts; D016159:Tumor Suppressor Protein p53; D051028:bcl-2-Associated X Protein; D051736:Proto-Oncogene Proteins c-mdm2; D051057:Proto-Oncogene Proteins c-akt; D053148:Caspase 3