Abstract
Four new sesterterpenoids, designated as asperiecolins A-D (1-4), were isolated from fungus Aspergillus sp. TJ403-YJ22. Asperiecolin A (1) possesses an unprecedented 5/8/6/6/5-fused pentacyclic framework with 11 stereocenters, while asperiecolins B (2) and C (3) feature an unusual five-membered lactam ring. All compounds inhibited LPS-induced NO and TNF-α production in macrophages. Additionally, compound 1 exhibited potent AChE inhibition (IC50 = 0.67 ± 0.05 μM), highlighting its therapeutic potential for inflammatory and neurodegenerative diseases.
MeSH terms
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Acetylcholinesterase* / metabolism
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Animals
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Anti-Inflammatory Agents* / chemistry
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Anti-Inflammatory Agents* / isolation & purification
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Anti-Inflammatory Agents* / pharmacology
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Anti-Inflammatory Agents, Non-Steroidal* / chemistry
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Anti-Inflammatory Agents, Non-Steroidal* / isolation & purification
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Anti-Inflammatory Agents, Non-Steroidal* / pharmacology
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Aspergillus* / chemistry
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Cholinesterase Inhibitors* / chemistry
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Cholinesterase Inhibitors* / isolation & purification
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Cholinesterase Inhibitors* / pharmacology
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Lipopolysaccharides / antagonists & inhibitors
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Lipopolysaccharides / pharmacology
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Macrophages / drug effects
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Macrophages / metabolism
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Mice
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Molecular Structure
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Nitric Oxide / antagonists & inhibitors
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Nitric Oxide / biosynthesis
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RAW 264.7 Cells
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Sesterterpenes* / chemistry
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Sesterterpenes* / isolation & purification
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Sesterterpenes* / pharmacology
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Structure-Activity Relationship
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Tumor Necrosis Factor-alpha / antagonists & inhibitors
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Tumor Necrosis Factor-alpha / biosynthesis
Substances
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Sesterterpenes
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Tumor Necrosis Factor-alpha
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Cholinesterase Inhibitors
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Nitric Oxide
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Lipopolysaccharides
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Anti-Inflammatory Agents
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Acetylcholinesterase
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Anti-Inflammatory Agents, Non-Steroidal