Diterpenoid Chemistry and Biological Activity Evaluation
Summary
Diterpenoids are a class of natural products derived from the C20 isoprenoid precursor geranylgeranyl diphosphate. They exhibit remarkable structural diversity, encompassing subfamilies such as labdanes, kauranes, clerodanes, halimanes and lathyranes. Biosynthetically, cyclases and cytochrome P450 oxidases orchestrate cyclisation and oxidative tailoring to yield highly oxygenated polycyclic frameworks. Isolation of diterpenoids typically employs solvent extraction, chromatographic separation and spectroscopic analysis, with nuclear magnetic resonance spectroscopy and mass spectrometry indispensable for structural elucidation. In chemical synthesis, strategies range from biomimetic cyclisations to stepwise assembly of carbon skeletons. Biological evaluation of diterpenoids encompasses in vitro assays for cytotoxicity, anti-inflammatory activity, enzyme inhibition (for example, cyclooxygenases and kinases), antiviral potency and multidrug-resistance reversal. In vivo models probe anti-tumour efficacy, immunomodulation and neuroprotection. The global significance of diterpenoid research lies in its contribution to drug discovery, agrochemicals and chemical ecology, offering lead scaffolds against cancer, infectious disease and inflammatory disorders. Practical applications extend to the development of enzyme inhibitors, antiviral agents and compounds that modulate cell signalling pathways such as NF-κB and MAPKs.
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Diterpenoid Chemistry and Biological Activity Evaluation publication trend
The graph below shows the total number of articles in diterpenoid chemistry and biological activity evaluation across all publications each year (not limited to Nature Index journals).
Technical terms
Diterpenoid: A natural C20 isoprenoid compound formed by cyclisation and oxidative modification of geranylgeranyl diphosphate.
Bioassay-guided fractionation: A method that combines biological testing and chromatographic separation to isolate active constituents from complex mixtures.
IC50: The concentration of a compound required to inhibit a specified biological function by 50%, commonly used to quantify potency in enzyme and cell-based assays.
Nuclear magnetic resonance spectroscopy (NMR): An analytical technique that exploits the magnetic properties of atomic nuclei to determine molecular structure and stereochemistry.
NF-κB: A transcription factor involved in the regulation of immune and inflammatory responses, often targeted by anti-inflammatory agents.
References
- LC-QToF chemical profiling of Euphorbia grantii Oliv. and its potential to inhibit LPS-induced lung inflammation in rats via the NF-κB, CY450P2E1, and P38 MAPK14 pathways. Inflammopharmacology (2023).
- New halimane and clerodane diterpenoids from Croton cnidophyllus. Natural Products and Bioprospecting (2023).
- Myrsinane-Type Diterpenes: A Comprehensive Review on Structural Diversity, Chemistry and Biological Activities. International Journal of Molecular Sciences (2023).
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