title: Expression of mRNA for adenosine A(1), A(2a), A(2b), and A(3) receptors in HL-60 cells: dependence on cell cycle phases.
abstract: The present studies investigated changes in expression of mRNA for adenosine A(1), A(2a), A(2b), and A(3) receptors in samples of HL-60 promyelocytic cells differing in the actual presence of cells in various phases of the cell cycle induced by the double thymidine block method. Real-time PCR technique was used for obtaining data on mRNA expression. Statistical analysis of the data revealed that the mRNA expression of adenosine A(1), A(2a), and A(3) receptors is dependent on the cell cycle phase. G(0)/G(1) and G(2)/M phases were characterized by a higher mRNA expression of adenosine A(1) receptors and a lower one of adenosine A(2a) and A(3) receptors whereas the opposite was true for the S phase. Interestingly, expression of mRNA of the adenosine A(2b) receptors was independent on the cell cycle phase. The results indicate the plasticity of mRNA expression of adenosine receptors in the investigated promyelocytic cells and its interaction with physiological mechanisms of the cell cycle.
authors: Laboratory of Experimental Hematology, Department of Molecular Cytology and Cytometry, Institute of Biophysics, Academy of Sciences of the Czech Republic, Brno, Czech Republic. hofer@ibp.cz
authors: M
authors: M
authors: Hofer
authors: L
authors: L
authors: Dušek
authors: Z
authors: Z
authors: Hoferová
authors: L
authors: L
authors: Stixová
authors: M
authors: M
authors: Pospíšil
mesh_terms: D002453:Cell Cycle / Q000235:genetics*; D018922:HL-60 Cells; D006801:Humans; D012333:RNA, Messenger / Q000378:metabolism*; D060888:Real-Time Polymerase Chain Reaction; D043682:Receptor, Adenosine A1 / Q000235:genetics / Q000378:metabolism; D043705:Receptor, Adenosine A2A / Q000235:genetics / Q000378:metabolism; D043704:Receptor, Adenosine A2B / Q000235:genetics / Q000378:metabolism; D043684:Receptor, Adenosine A3 / Q000235:genetics / Q000378:metabolism; D018047:Receptors, Purinergic P1 / Q000235:genetics* / Q000378:metabolism; D016196:S Phase
chemical_list: D012333:RNA, Messenger; D043682:Receptor, Adenosine A1; D043705:Receptor, Adenosine A2A; D043704:Receptor, Adenosine A2B; D043684:Receptor, Adenosine A3; D018047:Receptors, Purinergic P1