Phytochemistry and Anticancer Activity of Natural Products

The landscape of anticancer research increasingly acknowledges the rich chemical diversity of natural products. Plants produce a vast array of secondary metabolites—such as alkaloids, terpenoids, flavonoids and phenolic compounds—that exhibit cytotoxic, pro-apoptotic and antiproliferative effects against malignant cells. Phytochemical screening and bioactivity-guided fractionation have identified numerous lead molecules that modulate key cancer hallmarks, including DNA damage, cell cycle arrest and apoptosis induction. Advances in analytical techniques (for example UHPLC-QTOF-MS and GC-MS) have facilitated comprehensive metabolite profiling, while in vitro and in vivo assays continue to validate anticancer efficacy across breast, colon, lung, hepatic and other tumour models. Moreover, nanotechnology strategies—encapsulating or conjugating plant extracts into nanoparticles—have enhanced the solubility, stability and targeted delivery of bioactive compounds, thereby improving therapeutic index. Integration of phytochemistry with molecular biology is clarifying mechanisms of action, from death-receptor-mediated extrinsic pathways to mitochondrial intrinsic cascades. This multidisciplinary approach underscores the global significance of natural sources in the ongoing search for safer and more effective anticancer agents.

Research from Nature Portfolio

Recent studies have demonstrated that green-synthesised nano-formulations of plant extracts can potentiate anticancer activity by enhancing cellular uptake and modulating apoptosis pathways. In particular, silver, albumin-conjugated and liposomal nanoparticles derived from Fagonia cretica methanolic extracts exhibited spherical morphologies (50–150 nm) and favourable zeta potentials, leading to significantly lower IC50 values in breast and hepatic cancer cell lines. These nano-entities upregulated TRAIL, DR4, DR5 and FADD expression, thereby activating the extrinsic apoptotic cascade more effectively than unmodified extracts. Such work highlights the promise of merging nanotechnology with phytochemistry to overcome bioavailability challenges and improve targeted cancer therapy.

Phytochemistry and Anticancer Activity of Natural Products publication trend

The graph below shows the total number of articles in phytochemistry and anticancer activity of natural products across all publications each year (not limited to Nature Index journals).

Technical terms

Phytochemistry: The study of plant-derived chemicals, including their structures, biosynthesis and biological activities.

Secondary metabolites: Organic compounds produced by plants that are not essential for growth but often confer therapeutic effects.

IC50: The concentration of a substance required to inhibit a specific biological function by 50% in vitro.

Apoptosis: Programmed cell death characterised by specific biochemical and morphological changes.

Extrinsic apoptotic pathway: A cell-death mechanism initiated by extracellular ligands binding to death receptors on the cell surface.

Nanoparticles: Particles with dimensions in the 1–100 nm range used to enhance drug delivery and bioactivity.

Bioavailability: The fraction of an administered substance that reaches systemic circulation and the target site.

References

1. TRAIL mediated apoptosis ruling and anticancer trigger by fine-tuned nano spheres of Fagonia cretica methanolic extracts as novel cancer regime. Scientific Reports (2023).
2. Anticancer Plants: A Review of the Active Phytochemicals, Applications in Animal Models, and Regulatory Aspects. Biomolecules (2019).
3. A Preliminary Cytotoxicity Study of Fagonia arabica against Breast (MCF-7), Oral (KB-3-1), and Lung Cancer (A-549) Cell Lines: A Study Supported by Molecular Marker Analysis Using Dual Staining Dyes. Separations (2023).
4. CYTOTOXIC POTENTIALS AND PHYTOCONSTITUENTS PROFILING OF BLEPHARIS EDULIS (FORSSK.) PERS. USING UHPLC/Q-TOF-MS-MS. Al-Azhar Journal of Pharmaceutical Sciences (2021).