Phytochemical Mechanisms in Cancer Treatment Strategies

Phytochemical mechanisms in cancer treatment involve bioactive compounds derived from plants that interact with tumour biology and host processes. These agents, which include polyphenols, alkaloids, terpenoids and saponins, operate through multiple routes to suppress malignancy. Central to their efficacy is the induction of apoptosis, a form of programmed cell death, and autophagy, the cellular self-digestion pathway, both of which eliminate cancer cells. Phytochemicals also enforce cell cycle arrest at critical checkpoints (G0/G1 or G2/M), thereby halting uncontrolled proliferation. By inhibiting angiogenesis, they prevent new blood vessel formation essential for tumour growth, while blockade of metastasis curbs invasion and dissemination. Molecularly, these compounds modulate key signalling cascades—such as NF-κB, MAPK/ERK, PI3K/Akt, STAT3 and SIRT1/Nrf2—leading to reduced inflammatory signalling, oxidative stress and chemoresistance. Their multi-target profile often synergises with conventional therapies, offering adjuvant strategies with a potentially lower toxicity profile. Advances in formulation and delivery seek to enhance bioavailability and tissue specificity. Collectively, these insights underscore the global significance of phytochemicals in shaping patient-friendly, cost-effective interventions that blend molecular precision with traditional wisdom.

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Phytochemical Mechanisms in Cancer Treatment Strategies publication trend

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Technical terms

Apoptosis: Programmed cell death characterised by cell shrinkage and DNA fragmentation.

Autophagy: Cellular degradation process that recycles organelles and proteins under stress.

Angiogenesis: Formation of new blood vessels from existing vasculature, critical for tumour growth.

Metastasis: Spread of cancer cells from the primary site to distant organs.

Cell cycle arrest: Halt of cell division at defined checkpoints (e.g., G0/G1, G2/M).

Reactive oxygen species: Chemically reactive molecules containing oxygen that can induce cellular damage.

NF-κB: Transcription factor regulating inflammatory response and cell survival.

PI3K/Akt pathway: Signalling cascade involved in cell growth and survival.

References

1. Magnolol: A Neolignan from the Magnolia Family for the Prevention and Treatment of Cancer. International Journal of Molecular Sciences (2018).
2. Honokiol induces apoptosis and autophagy via the ROS/ERK1/2 signaling pathway in human osteosarcoma cells in vitro and in vivo. Cell Death & Disease (2018).
3. Plumbagin inhibits the proliferation and survival of esophageal cancer cells by blocking STAT3-PLK1-AKT signaling. Cell Death & Disease (2018).