Cytoprotective and anti-inflammatory effects of spinasterol via the induction of heme oxygenase-1 in murine hippocampal and microglial cell lines.

Abstract

Spinasterol, which is isolated from the aerial parts of Aster scaber Thunb. (Asteraceae), is involved in various biological activities. In this study, we report the efficacy of spinasterol in effectively modulating the regulation of antioxidative and anti-inflammatory activity through the upregulation of heme oxygenase (HO)-1 in murine hippocampal HT22 cells and BV2 microglia. We showed that spinasterol increased the cellular resistance of HT22 cells to oxidative injury caused by the glutamate-induced cytotoxicity by extracellular signal-regulated kinase (ERK) pathway-dependent expression of HO-1. Furthermore, spinasterol suppressed the lipopolysaccharide (LPS)-induced expression of pro-inflammatory enzymes and inflammatory mediators in BV2 microglia. Spinasterol also suppressed the production of nitric oxide (NO), prostaglandin E2 (PGE₂), tumor necrosis factor-α (TNF-α), and interleukin-1β (IL-1β) through extracellular signal-regulated kinase (ERK) pathway-dependent expression of HO-1. These results suggest that spinasterol has a therapeutic potential against neurodegenerative diseases that are caused by oxidative stress and neuroinflammation.

• Authors: Gil-Saeng Jeong, Bin Li, Dong-Sung Lee, Ki Hyun Kim, Il Kyun Lee, Kang Ro Lee, Youn-Chul Kim
• Journal: International immunopharmacology (Int Immunopharmacol) Vol. 10 Issue 12 Pg. 1587-94 (Dec 2010) ISSN: 1878-1705 [Electronic] Netherlands
• PMID: 20933625 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2010 Elsevier B.V. All rights reserved.

Chemical References

• Anti-Inflammatory Agents
• Interleukin-1
• Reactive Oxygen Species
• Tumor Necrosis Factor-alpha
• spinasterol
• Stigmasterol
• Heme Oxygenase-1
• Dinoprostone

Topics

• Animals
• Anti-Inflammatory Agents (pharmacology)
• Blotting, Western
• Cell Culture Techniques
• Cell Line
• Cell Survival (drug effects)
• Cytoprotection (drug effects)
• Dinoprostone (metabolism)
• Enzyme Induction
• Heme Oxygenase-1 (biosynthesis)
• Hippocampus (cytology, drug effects, enzymology, immunology)
• Interleukin-1 (metabolism)
• Mice
• Microglia (cytology, drug effects, enzymology, immunology)
• Molecular Structure
• Oxidative Stress (drug effects)
• Reactive Oxygen Species (metabolism)
• Stigmasterol (analogs & derivatives, pharmacology)
• Tumor Necrosis Factor-alpha (metabolism)