Title : TIS21/BTG2/PC3 is expressed through PKC-delta pathway and inhibits binding of cyclin B1-Cdc2 and its activity, independent of p53 expression.

Pub. Date : 2004 Sep 10

PMID : 15302583






9 Functional Relationships(s)
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1 Signal transduction pathway and a new function of TIS21/BTG2/PC3 were investigated in p53 null U937 cells; Expression of TIS21 by 12-O-tetradecanoyl phorbol-13-acetate (TPA) stimulation was mediated by PKC-delta activation, however, was strongly inhibited by cPKC isozymes. Tetradecanoylphorbol Acetate BTG anti-proliferation factor 2 Homo sapiens
2 Signal transduction pathway and a new function of TIS21/BTG2/PC3 were investigated in p53 null U937 cells; Expression of TIS21 by 12-O-tetradecanoyl phorbol-13-acetate (TPA) stimulation was mediated by PKC-delta activation, however, was strongly inhibited by cPKC isozymes. Tetradecanoylphorbol Acetate BTG anti-proliferation factor 2 Homo sapiens
3 Signal transduction pathway and a new function of TIS21/BTG2/PC3 were investigated in p53 null U937 cells; Expression of TIS21 by 12-O-tetradecanoyl phorbol-13-acetate (TPA) stimulation was mediated by PKC-delta activation, however, was strongly inhibited by cPKC isozymes. Tetradecanoylphorbol Acetate BTG anti-proliferation factor 2 Homo sapiens
4 Signal transduction pathway and a new function of TIS21/BTG2/PC3 were investigated in p53 null U937 cells; Expression of TIS21 by 12-O-tetradecanoyl phorbol-13-acetate (TPA) stimulation was mediated by PKC-delta activation, however, was strongly inhibited by cPKC isozymes. Tetradecanoylphorbol Acetate BTG anti-proliferation factor 2 Homo sapiens
5 When U937 cells were treated with TPA+Go6976, but not TPA+Go6850, the level of TIS21 mRNA was maintained over that of TPA alone. Tetradecanoylphorbol Acetate BTG anti-proliferation factor 2 Homo sapiens
6 When U937 cells were treated with TPA+Go6976, but not TPA+Go6850, the level of TIS21 mRNA was maintained over that of TPA alone. Go 6976 BTG anti-proliferation factor 2 Homo sapiens
7 When analyzed by FACS, TPA-induced G2/M arrest was significantly inhibited by Go6850, but not by Go6976, suggesting the involvement of TIS21 and nPKC isozymes. Tetradecanoylphorbol Acetate BTG anti-proliferation factor 2 Homo sapiens
8 When the cells were synchronized by nocodazole, TIS21 overexpressers inhibited degradations of cyclin A and cyclin B1 in 3 h after release from the synchronization. Nocodazole BTG anti-proliferation factor 2 Homo sapiens
9 In summary, TPA-induced TIS21 mRNA expression is mediated by PKC-delta, and TIS21 induces G2/M arrest and cell death by inhibiting cyclin B1-Cdc2 binding and the kinase activity through its binding to Cdc2. Tetradecanoylphorbol Acetate BTG anti-proliferation factor 2 Homo sapiens