Pharmacological Activities of Pentacyclic Triterpenes

Pentacyclic triterpenes are a diverse class of naturally occurring compounds characterised by five interconnected carbon rings, widely distributed in plant tissues such as bark, leaves and fruit cuticles. Renowned for their pleiotropic bioactivities, these molecules exhibit anti-inflammatory, anticancer, antiviral, antimicrobial, antidiabetic and hepatoprotective properties. Mechanistically, they modulate key signalling cascades—including NF-κB, PI3K/Akt and PPAR pathways—induce apoptosis in transformed cells, scavenge reactive oxygen species and inhibit enzymes implicated in metabolic disorders. Despite potent in vitro and in vivo efficacy, clinical translation has been hampered by poor water solubility and limited bioavailability. Recent efforts have focused on semi-synthetic derivatisation, inclusion complexes with cyclodextrins and nanoparticulate delivery systems to enhance pharmacokinetics. The global significance of pentacyclic triterpenes lies in their potential as multi-target agents for chronic diseases, ranging from metabolic syndrome to infectious and neoplastic disorders, with emerging computational and experimental strategies accelerating target identification and validation.

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Pharmacological Activities of Pentacyclic Triterpenes publication trend

The graph below shows the total number of articles in pharmacological activities of pentacyclic triterpenes across all publications each year (not limited to Nature Index journals).

Technical terms

Pentacyclic triterpene: A plant-derived compound composed of five fused carbon rings, notable for a wide spectrum of biological activities.

Network pharmacology: An integrative computational strategy that maps the interactions among bioactive compounds, molecular targets and signalling pathways.

Molecular docking: A computational method for predicting how small molecules bind to protein targets and estimating binding affinities.

PPAR signalling pathway: A regulatory cascade involving peroxisome proliferator-activated receptors that governs lipid metabolism, glucose homeostasis and inflammatory responses.

References

1. Integrating network pharmacology and animal experimental validation to investigate the action mechanism of oleanolic acid in obesity. Journal of Translational Medicine (2024).
2. Fractionation and Characterization of Triterpenoids from Vaccinium vitis-idaea L. Cuticular Waxes and Their Potential as Anticancer Agents. Antioxidants (2023).
3. Oleanolic Acid: Extraction, Characterization and Biological Activity. Nutrients (2022).
4. Oleanolic Acid Alters Multiple Cell Signaling Pathways: Implication in Cancer Prevention and Therapy. International Journal of Molecular Sciences (2017).
5. Pentacyclic Triterpene Distribution in Various Plants – Rich Sources for a New Group of Multi-Potent Plant Extracts. Molecules (2009).
6. Triterpenoids. Natural Product Reports (2013).
7. The Synergistic Biologic Activity of Oleanolic and Ursolic Acids in Complex with Hydroxypropyl-γ-Cyclodextrin. Molecules (2014).