Induction of proline‐rich tyrosine kinase2 (Pyk2) through C/EBPβ is involved in PMA‐induced monocyte differentiation
Copyright policy )Induction of proline‐rich tyrosine kinase2 (Pyk2) through C/EBPβ is involved in PMA‐induced monocyte differentiation
Proline‐rich tyrosine kinase2 (Pyk2) is a cytoplasmic tyrosine kinase related to focal adhesion kinase. Pyk2 expression has been known to be restricted to neuronal and hematopoietic cells and Pyk2 tyrosine phosphorylation and its kinase activity is important for the function of monocytes/macrophages. In NB4 acute promyelocytic leukemia cells, the expression of Pyk2 was increased in parallel with differentiation, and inhibited by PD98059, indicating Pyk2 expression is regulated through MAPK/ERK pathway. Dominant‐negative kinase‐deficient mutant of Pyk2 reduced the differentiation of NB4 cells in response to phorbol 12‐mystate 13‐acetate. Transcription factor CCAAT enhancer‐binding protein (C/EBP) β was required to induce Pyk2 expression in promoter analysis. These results suggest that Pyk2 is induced and involved in monocyte differentiation and C/EBPβ is a critical regulator of the Pyk2 expression.
- Kunsan National University Korea (Republic of)
- Pusan National University Korea (Republic of)
- UPRRP College of Natural Sciences Puerto Rico
Proline-rich tyrosine kinase2 (Pyk2), CCAAT-Enhancer-Binding Protein-beta, Cell Differentiation, MAP Kinase Kinase Kinases, Gene Expression Regulation, Enzymologic, Monocytes, Hematopoiesis, Up-Regulation, Focal Adhesion Kinase 2, C/EBPβ, Tumor Cells, Cultured, Humans, Tetradecanoylphorbol Acetate, Promoter Regions, Genetic, Monocyte differentiation, PMA, HeLa Cells
Proline-rich tyrosine kinase2 (Pyk2), CCAAT-Enhancer-Binding Protein-beta, Cell Differentiation, MAP Kinase Kinase Kinases, Gene Expression Regulation, Enzymologic, Monocytes, Hematopoiesis, Up-Regulation, Focal Adhesion Kinase 2, C/EBPβ, Tumor Cells, Cultured, Humans, Tetradecanoylphorbol Acetate, Promoter Regions, Genetic, Monocyte differentiation, PMA, HeLa Cells
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