title: Gene expression analysis during platelet-like particle production in phorbol myristate acetate-treated MEG-01 cells.
abstract: A comprehensive gene-expression analysis during platelet (PLT) production from megakaryocytes may give important information on genes involved in the PLT production process. However, the low abundance of primary megakaryocytes makes the gene expression analysis difficult. Therefore, we employed MEG-01 cells, a human megakaryocytic cell line, and confirmed that the cell line produces PLT-like particles by treatment with phorbol myristate acetate (PMA). After treatment of MEG-01 cells with PMA for 8 or 24 h, comprehensive gene expression analysis was carried out using a microarray and Reverse Transcription-Polymerase Chain Reaction (RT-PCR). From the microarray analysis, 141 genes were up-regulated (>2-fold) and 164 genes were down-regulated (<1/2-fold). However, known PLT-related genes were not included in the up- or down-regulated genes. On the other hand, RT-PCR analysis detected increased expression of beta1-tubulin, CD62P, gpIbalpha and gpIII, which are related to PLT function and megakaryocyte differentiation, following PMA treatment for 24 h. These results indicate that the MEG-01 cell may be an alternative model system to study the process of human PLT production from megakaryocytes. The gene-expression analysis might be a powerful tool for identifying genes related to PLT production, if the experimental conditions are optimized.
authors.affiliation: Department of Pharmacokinetics and Biopharmaceutics, Subdivision of Biopharmaceutical Sciences, Institute of Health Biosciences, The University of Tokushima, Japan. isakariy@otsuka.jp
authors.forename: Yoshimasa
authors.initials: Y
authors.lastname: Isakari
authors.forename: Shinji
authors.initials: S
authors.lastname: Sogo
authors.forename: Tatsuhiro
authors.initials: T
authors.lastname: Ishida
authors.forename: Takuma
authors.initials: T
authors.lastname: Kawakami
authors.forename: Toshihide
authors.initials: T
authors.lastname: Ono
authors.forename: Takao
authors.initials: T
authors.lastname: Taki
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kiwada
mesh_terms: D001792:Blood Platelets / Q000166:cytology*; D002460:Cell Line; D020869:Gene Expression Profiling; D006801:Humans; D008533:Megakaryocytes / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism; D020411:Oligonucleotide Array Sequence Analysis; D020133:Reverse Transcriptase Polymerase Chain Reaction; D013755:Tetradecanoylphorbol Acetate / Q000494:pharmacology*
chemical_list: D013755:Tetradecanoylphorbol Acetate