Abstract:
:The phenolic glucoside gastrodin, a main constituent of a Chinese traditional herbal medicine, has been known to display several biological and pharmacological properties. However, the role and precise molecular mechanisms explaining how gastrodin suppresses the inflammatory response in septic cardiac dysfunction are unknown. To study this, rat H9c2 cardiomyocytes were treated with gastrodin and/or lipopolysaccharide (LPS). Our results showed that gastrodin treatment strongly suppressed nuclear factor-κB (NF-κB) and mitogen-activated protein kinases (MAPKs) family activation and upregulation of the expression of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6) in LPS-stimulated H9c2 cardiomyocytes. Simultaneously, gastrodin obviously upregulated the phosphatidylinositol 3-kinase (PI3-K)/Akt signaling in a dose-dependent manner. However, wortmannin, a specific PI3-K inhibitor, blocked the inhibitory effects of gastrodin on LPS-stimulated H9c2 cardiomyocytes. Furthermore, PI3-K/Akt inhibition partially abolished the inhibitory effects of gastrodin on the phosphorylation of inhibitor κB-α (IκB-α), extracellular signal-regulated kinase 1/2 (ERK1/2), c-Jun N-terminal protein kinase (JNK), and p38 mitogen-activated protein kinase (p38 MAPK), and activity of NF-κB. Here we report activation of the PI3-K/Akt signaling by gastrodin and that inhibition of this pathway reverses the inhibitory effects of gastrodin on NF-κB and MAPKs activation in H9c2 cardiomyocytes.
journal_name
Biochem Pharmacoljournal_title
Biochemical pharmacologyauthors
Yang P,Han Y,Gui L,Sun J,Chen YL,Song R,Guo JZ,Xie YN,Lu D,Sun Ldoi
10.1016/j.bcp.2013.01.020subject
Has Abstractpub_date
2013-04-15 00:00:00pages
1124-33issue
8eissn
0006-2952issn
1873-2968pii
S0006-2952(13)00057-9journal_volume
85pub_type
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