title: Expression of cyclin A, B1 and D1 after induction of cell cycle arrest in the Jurkat cell line exposed to doxorubicin.
abstract: Jurkat human lymphoblastoid cells were incubated in increasing concentrations of doxorubicin (0.05, 0.1 and 0.15 μM) to induce cell death, and their expression of cyclin A, B1 and D1 was evaluated by flow cytometry (cell cycle progression, Annexin V assay, percentages and levels of each of the cyclins), transmission electron microscopy (ultrastructure) and confocal fluorescence microscopy (expression and intracellular localization of cyclins). After low-dose doxorubicin treatment, Jurkat cells responded mainly by G2/M arrest, which was related to increased cyclin B1, A and D1 levels, a low level of apoptosis and/or mitotic catastrophe. The influence of doxorubicin on levels and/or localization of selected cyclins was confirmed, which may in turn contribute to the G2/M arrest induced by the drug.
authors.affiliation: Department of Histology and Embryology, Nicolaus Copernicus University, Bydgoszcz, Poland. azuryn@cm.umk.pl
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Zuryń
authors.forename: Anna
authors.initials: A
authors.lastname: Litwiniec
authors.forename: Lidia
authors.initials: L
authors.lastname: Gackowska
authors.forename: Andrzej
authors.initials: A
authors.lastname: Pawlik
authors.forename: Aleksandra Antonina
authors.initials: AA
authors.lastname: Grzanka
authors.forename: Alina
authors.initials: A
authors.lastname: Grzanka
mesh_terms: D000903:Antibiotics, Antineoplastic / Q000494:pharmacology*; D059447:Cell Cycle Checkpoints / Q000187:drug effects*; D016923:Cell Death / Q000187:drug effects; D019925:Cyclin A / Q000032:analysis / Q000235:genetics*; D056744:Cyclin B1 / Q000032:analysis / Q000235:genetics*; D019938:Cyclin D1 / Q000032:analysis / Q000235:genetics*; D004317:Doxorubicin / Q000494:pharmacology*; D015973:Gene Expression Regulation, Leukemic / Q000187:drug effects*; D006801:Humans; D019169:Jurkat Cells; D015458:Leukemia, T-Cell / Q000188:drug therapy / Q000235:genetics
chemical_list: D000903:Antibiotics, Antineoplastic; D019925:Cyclin A; D056744:Cyclin B1; D019938:Cyclin D1; D004317:Doxorubicin