Blockade of p38 Mitogen-activated Protein Kinase Pathway Inhibits Interleukin-6 Release and Expression in Primary Neonatal Cardiomyocytes
The Korean Journal of Physiology and Pharmacology
;
: 319-325, 2002.
Article
in English
| WPRIM
| ID: wpr-728272
ABSTRACT
The induction of interleukin-6 (IL-6) using combined proinflammatory agents (LPS/IFN-gamma or TNF-alpha/IFN-gamma) was studied in relation to p38 mitogen-activated protein kinase (MAPK) and NF-kappaB transcriptional factor in primary neonatal cardiomyocytes. When added to cultures of cardiomyocytes, the combined agents (LPS/IFN-gamma or TNF-alpha/IFN-gamma) had stimulatory effect on the production of IL-6 and the elevation was significantly reduced by SB203580, a specific p38 MAPK inhibitor. SB203580 inhibited protein production and gene expression of IL-6 in a concentration-dependent manner. In this study, IFN-gamma enhancement of TNF-alpha-induced NF-kappaB binding affinity as well as p38 MAP kinase activation was observed. However, a specific inhibitor of p38 MAPK, SB203580, had no effect on TNF-alpha/IFN-gamma or LPS/IFN-gamma-induced NF-kappaB activation. This study strongly suggests that these pathways about TNF-alpha/IFN-gamma or LPS/IFN-gamma-activated IL-6 release can be primarily dissociated in primary neonatal cardiomyocytes.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Protein Kinases
/
Gene Expression
/
NF-kappa B
/
Interleukin-6
/
Myocytes, Cardiac
/
P38 Mitogen-Activated Protein Kinases
Language:
English
Journal:
The Korean Journal of Physiology and Pharmacology
Year:
2002
Type:
Article
Similar
MEDLINE
...
LILACS
LIS