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Morroniside cinnamic acid conjugate as an anti-inflammatory agent
Yoshinori Takeda1, Naomi Tanigawa, Fortunatus Sunghwa
1Department of Chemistry, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
Bioorganic & Medicinal Chemistry Letters
|July 13, 2010
Summary
A novel compound, 7-O-cinnamoylmorroniside, effectively reduces inflammation by inhibiting E-selectin expression. This conjugate shows superior anti-inflammatory activity compared to related compounds in cell adhesion models.
Area of Science:
- Pharmacology
- Organic Chemistry
- Immunology
Background:
- Cell-cell adhesion plays a crucial role in inflammatory processes.
- E-selectin is a key mediator in inflammatory cell adhesion.
- Developing novel anti-inflammatory agents targeting E-selectin is of significant interest.
Purpose of the Study:
- To synthesize and evaluate a morroniside cinnamic acid conjugate for its anti-inflammatory potential.
- To investigate the compound's effect on E-selectin mediated cell-cell adhesion.
- To compare its efficacy against related iridoid glycosides.
Main Methods:
- Preparation of 7-O-cinnamoylmorroniside, a morroniside cinnamic acid conjugate.
- Evaluation of anti-inflammatory activity by measuring inhibition of E-selectin expression.
- Comparative analysis with harpagoside, 7-O-methylmorroniside, and morroniside.
Main Results:
- 7-O-cinnamoylmorroniside demonstrated significant anti-inflammatory activity with an IC(50) of 49.3 microM.
- The compound potently inhibited TNF-alpha-induced E-selectin expression.
- It exhibited greater efficacy than harpagoside (IC(50)=88.2 microM) and other tested derivatives.
Conclusions:
- 7-O-cinnamoylmorroniside is a potent inhibitor of E-selectin expression and a promising anti-inflammatory agent.
- The cinnamic acid conjugation enhances the anti-inflammatory properties of morroniside.
- This study highlights the therapeutic potential of 7-O-cinnamoylmorroniside in inflammatory conditions.
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