Title : Hematopoietic cytokines enhance Chk1-dependent G2/M checkpoint activation by etoposide through the Akt/GSK3 pathway to inhibit apoptosis.

Pub. Date : 2005 Mar 17

PMID : 15674326






4 Functional Relationships(s)
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1 Hematopoietic cytokines enhance Chk1-dependent G2/M checkpoint activation by etoposide through the Akt/GSK3 pathway to inhibit apoptosis. Etoposide AKT serine/threonine kinase 1 Homo sapiens
2 The G2/M arrest induced by etoposide was also enhanced or inhibited by expression of a constitutively activated or dominant-negative Akt mutant, respectively. Etoposide AKT serine/threonine kinase 1 Homo sapiens
3 Furthermore, SB216763 or LiCl, a specific inhibitor for the GSK3 kinase inhibited by Akt, enhanced the Chk1 phosphorylation and G2/M arrest by etoposide. Etoposide AKT serine/threonine kinase 1 Homo sapiens
4 These results indicate that hematopoietic cytokines protect etoposide-treated cells from DNA damage-induced apoptosis by promoting, through the PI3K/Akt/GSK3 signaling pathway, G2/M checkpoint that is dependent on Chk1-mediated inhibition of Cdc2. Etoposide AKT serine/threonine kinase 1 Homo sapiens