scholarly journals Bradykinin stimulates protein kinase D–mediated colonic myofibroblast migration via cyclooxygenase-2 and heat shock protein 27

2017 ◽  
Vol 209 ◽  
pp. 191-198 ◽  
Author(s):  
Eric Chu ◽  
Shyla Saini ◽  
Tiegang Liu ◽  
James Yoo
Keyword(s):  
Heat Shock ◽  
Protein Kinase ◽  
Heat Shock Protein ◽  
Heat Shock Protein 27 ◽  
Cyclooxygenase 2 ◽  
Protein Kinase D

scholarly journals Heat Shock Protein 27 Is a Substrate of cGMP-dependent Protein Kinase in Intact Human Platelets

2000 ◽  
Vol 276 (10) ◽  
pp. 7108-7113 ◽  
Author(s):  
Elke Butt ◽  
Dorian Immler ◽  
Helmut E. Meyer ◽  
Alexey Kotlyarov ◽  
Kathrin Laaß ◽  
...  
Keyword(s):  
Heat Shock ◽  
Protein Kinase ◽  
Heat Shock Protein ◽  
Heat Shock Protein 27 ◽  
Human Platelets ◽  
Dependent Protein Kinase ◽  
Cgmp Dependent Protein Kinase ◽  
Dependent Protein

scholarly journals 2adrenoreceptor agonist regulates protein kinase C-induced heat shock protein 27 phosphorylation in C6 glioma cells

2008 ◽  
Vol 106 (2) ◽  
pp. 519-528 ◽  
Author(s):  
Kumiko Tanabe ◽  
Shinji Takai ◽  
Rie Matsushima-Nishiwaki ◽  
Kanefusa Kato ◽  
Shuji Dohi ◽  
...  
Keyword(s):  
Protein Kinase C ◽  
Heat Shock ◽  
Protein Kinase ◽  
Heat Shock Protein ◽  
Glioma Cells ◽  
Heat Shock Protein 27 ◽  
C6 Glioma ◽  
C6 Glioma Cells ◽  
Kinase C

Regulation of actin filament dynamics by p38 map kinase-mediated phosphorylation of heat shock protein 27

1997 ◽  
Vol 110 (3) ◽  
pp. 357-368 ◽  
Author(s):  
J. Guay ◽  
H. Lambert ◽  
G. Gingras-Breton ◽  
J.N. Lavoie ◽  
J. Huot ◽  
...  
Keyword(s):  
Heat Shock ◽  
Protein Kinase ◽  
Heat Shock Protein ◽  
Chinese Hamster ◽  
Strong Support ◽  
Specific Inhibitor ◽  
Heat Shock Protein 27 ◽  
Cell Extracts ◽  
Hsp27 Phosphorylation ◽  
Homeostatic Function

We have studied the contribution of the individual kinases of the MAP (mitogen-activated protein) kinase family, including ERK (extracellular-signal regulated kinase), JNK/SAPK (c-JUN NH2-terminal kinase/stress-activated protein kinase) and p38, to activation of the HSP27 (heat shock protein 27) kinase MAPKAP kinase-2/3 and to HSP27 phosphorylation in Chinese hamster CCL39 cells stimulated by either growth factors, cytokines or stressing agents. In vitro assays using fractionated cell extracts or immunoprecipitates indicated that only fractions containing ERK or p38, and not those containing JNK/SAPK, had the capacity to activate MAPKAP kinase-2/3. In vivo, however, it appeared that only p38 is an upstream activator of HSP27 phosphorylation after both stress or growth factor stimulation: expression of an interfering mutant of ras, which blocked the activation of ERK by both types of inducers, had no effect on HSP27 phosphorylation and p38 activation; and the cell-permeant specific inhibitor of 038, SB203580, blocked MAPKAP-kinase2/3 activation and HSP27 phosphorylation. HSP27 has been suggested to have a phosphorylation-activated homeostatic function at the actin cytoskeleton level. This raises the possibility that p38 might be directly involved in mediating actin responses to external stimuli. Accordingly, we observed that a prior activation of p38 increased the stability of the actin microfilaments in cells exposed to cytochalasin D. The effect was dependent on the expression of HSP27 and was totally annihilated by blocking the p38 activity with SB203580. The results provide strong support to the idea that activation of p38 during adverse environmental conditions serves a homeostatic function aimed at regulating actin dynamics that would otherwise be destabilized during stress. Its activation during normal agonist stimulation may constitute an additional actin signaling pathway, the importance of which depends on the level of expression of HSP27.

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