Abstract
Previously, we demonstrated that α-iso-cubebenol, a natural compound isolated from the fruits of Schisandra chinensis, strongly enhances therapeutic efficacy against cecal ligation and puncture challenge-induced sepsis. In this study, we found that α-iso-cubebenol stimulated calcium increase and degranulation in human neutrophils. α-Iso-cubebenol also strongly induced neutrophil chemotaxis, which was completely blocked by a CXCR2 antagonist, SB225002. The increased survival rate by α-iso-cubebenol was also significantly attenuated by SB225002. Taken together, the results indicate that α-iso-cubebenol-induced anti-septic activity was mediated by CXCR2, suggesting CXCR2 as an important target for the regulation of sepsis and inflammation.
Copyright © 2013 Elsevier Inc. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Calcium / metabolism
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Cell Degranulation / drug effects
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Cell Degranulation / immunology
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Chemotaxis / drug effects
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Chemotaxis / immunology
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Humans
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Immunologic Factors / isolation & purification
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Immunologic Factors / pharmacology*
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Immunologic Factors / therapeutic use
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Male
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Mice
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Mice, Inbred ICR
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Neutrophils / drug effects
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Neutrophils / immunology
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Phenylurea Compounds / pharmacology
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Receptors, Interleukin-8B / antagonists & inhibitors
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Receptors, Interleukin-8B / physiology*
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Schisandra / chemistry*
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Sepsis / drug therapy*
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Sepsis / immunology
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Sesquiterpenes / isolation & purification
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Sesquiterpenes / pharmacology*
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Sesquiterpenes / therapeutic use
Substances
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Immunologic Factors
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Phenylurea Compounds
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Receptors, Interleukin-8B
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SB 225002
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Sesquiterpenes
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alpha-iso-cubebenol
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Calcium