Title : Rap1 and p38 MAPK mediate 8-chloro-cAMP-induced growth inhibition in mouse fibroblast DT cells.

Pub. Date : 2006 Dec

PMID : 16972264






15 Functional Relationships(s)
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1 Rap1 and p38 MAPK mediate 8-chloro-cAMP-induced growth inhibition in mouse fibroblast DT cells. 8-chloro-cyclic adenosine monophosphate RAS-related protein 1a Mus musculus
2 Rap1 and p38 MAPK mediate 8-chloro-cAMP-induced growth inhibition in mouse fibroblast DT cells. 8-chloro-cyclic adenosine monophosphate mitogen-activated protein kinase 14 Mus musculus
3 Previously, we reported that 8-Cl-cAMP and its metabolite 8-Cl-adenosine induce growth inhibition and apoptosis through p38 mitogen-activated protein kinase (MAPK) activation. 8-chloro-cyclic adenosine monophosphate mitogen-activated protein kinase 14 Mus musculus
4 To further investigate the signal mechanisms that regulate the cellular effects of 8-Cl-cAMP, we focused on a small GTPase Rap1 that is known to be involved in growth inhibition and reverse-transformation. 8-chloro-cyclic adenosine monophosphate RAS-related protein 1a Mus musculus
5 8-Cl-cAMP and 8-Cl-adenosine could increase Rap1 activity, which was blocked by ABT702-an adenosine kinase inhibitor. 8-chloro-cyclic adenosine monophosphate RAS-related protein 1a Mus musculus
6 This suggests that 8-Cl-cAMP-induced Rap1 activation is also dependent on the metabolic degradation of 8-Cl-cAMP. 8-chloro-cyclic adenosine monophosphate RAS-related protein 1a Mus musculus
7 This suggests that 8-Cl-cAMP-induced Rap1 activation is also dependent on the metabolic degradation of 8-Cl-cAMP. 8-chloro-cyclic adenosine monophosphate RAS-related protein 1a Mus musculus
8 Overexpression of a constitutively active mutant form of Rap1 (Rap1V12) attenuated cellular growth and soft-agar colony formation, which was basically the same effect as that observed with the 8-Cl-cAMP treatment. 8-chloro-cyclic adenosine monophosphate RAS-related protein 1a Mus musculus
9 However, 8-Cl-cAMP-induced Rap1 activation was not diminished by SB203580, a p38 MAPK inhibitor, suggesting that Rap1 activation might act upstream of p38 MAPK activation during 8-Cl-cAMP-induced growth inhibition. 8-chloro-cyclic adenosine monophosphate RAS-related protein 1a Mus musculus
10 However, 8-Cl-cAMP-induced Rap1 activation was not diminished by SB203580, a p38 MAPK inhibitor, suggesting that Rap1 activation might act upstream of p38 MAPK activation during 8-Cl-cAMP-induced growth inhibition. 8-chloro-cyclic adenosine monophosphate RAS-related protein 1a Mus musculus
11 However, 8-Cl-cAMP-induced Rap1 activation was not diminished by SB203580, a p38 MAPK inhibitor, suggesting that Rap1 activation might act upstream of p38 MAPK activation during 8-Cl-cAMP-induced growth inhibition. 8-chloro-cyclic adenosine monophosphate mitogen-activated protein kinase 14 Mus musculus
12 However, 8-Cl-cAMP-induced Rap1 activation was not diminished by SB203580, a p38 MAPK inhibitor, suggesting that Rap1 activation might act upstream of p38 MAPK activation during 8-Cl-cAMP-induced growth inhibition. 8-chloro-cyclic adenosine monophosphate RAS-related protein 1a Mus musculus
13 However, 8-Cl-cAMP-induced Rap1 activation was not diminished by SB203580, a p38 MAPK inhibitor, suggesting that Rap1 activation might act upstream of p38 MAPK activation during 8-Cl-cAMP-induced growth inhibition. 8-chloro-cyclic adenosine monophosphate mitogen-activated protein kinase 14 Mus musculus
14 However, 8-Cl-cAMP-induced Rap1 activation was not diminished by SB203580, a p38 MAPK inhibitor, suggesting that Rap1 activation might act upstream of p38 MAPK activation during 8-Cl-cAMP-induced growth inhibition. 8-chloro-cyclic adenosine monophosphate RAS-related protein 1a Mus musculus
15 However, 8-Cl-cAMP-induced Rap1 activation was not diminished by SB203580, a p38 MAPK inhibitor, suggesting that Rap1 activation might act upstream of p38 MAPK activation during 8-Cl-cAMP-induced growth inhibition. 8-chloro-cyclic adenosine monophosphate mitogen-activated protein kinase 14 Mus musculus