Plant-Derived Bioactive Compounds in Cancer Management: Molecular Mechanisms and Clinical Potential

Devendra S. Mahale1*, Bhupendra M. Mahale1, Rajesh D. Ahire1, Priyanka S. Ahire1, Rohit V. Chavan1, Rajesh A. Ahirrao2, Vilas Surana1

1Maliba Pharmacy College, UKA Tarasadia University, Bardoli, Gujarat, India
2P.G. College of Pharmaceutical Science and Research, Chaupale, Tal & Dist. – Nandurbar (MS), India

Received: 04-Feb-2026 | Published: 09-MAR-2026
Manuscript No: HJBMR-06-25-009 | Download PDF

Abstract

Cancer remains one of the leading causes of global mortality despite major advancements in surgery, chemotherapy, radiotherapy, and immunotherapy. Increasing therapeutic resistance, drug toxicity, and tumour recurrence have renewed scientific interest in plant-derived bioactive compounds as safer and multi-target therapeutic alternatives. Natural products obtained from medicinal plants and dietary herbs contain diverse phytochemicals such as alkaloids, flavonoids, terpenoids, and polyphenols that demonstrate significant anticancer activity. Bioactive molecules including curcumin, thymoquinone, ginsenosides, and resveratrol regulate key molecular signalling pathways involved in tumorigenesis. These compounds influence pathways such as NF-κB, MAPK, PI3K/Akt/mTOR, and Wnt/β-catenin, thereby promoting apoptosis, inhibiting tumour angiogenesis, suppressing metastasis, and reducing cancer cell proliferation across multiple cancer types.

Evidence from in-vitro experiments, in-vivo studies, and emerging clinical investigations supports the therapeutic potential of these natural compounds in reducing tumour burden, improving treatment response, and enhancing patient quality of life. The mechanistic diversity and pleiotropic biological effects of phytochemicals highlight their promise as complementary or alternative strategies in modern oncology. However, further research focusing on molecular characterization, pharmacokinetic optimization, safety evaluation, and well-designed clinical trials is necessary to translate these promising compounds into evidence-based cancer therapeutics.

Keywords

Natural products, Phytochemicals, Cancer therapy, Curcumin, Thymoquinone, Alkaloids, Polyphenols, Molecular pathways

Introduction

Cancer is a complex group of diseases characterized by uncontrolled cell growth, genetic mutations, and the ability of malignant cells to invade surrounding tissues and metastasize to distant organs. Despite significant advancements in modern oncology, cancer continues to pose a major global health challenge.

Plant-Derived Bioactive Compounds

Medicinal plants represent an abundant source of biologically active compounds. Phytochemicals such as alkaloids, flavonoids, terpenoids, and polyphenols exhibit various pharmacological properties including antioxidant, anti-inflammatory, and anticancer activities.

Molecular Mechanisms in Cancer Therapy

Bioactive plant compounds influence multiple signalling pathways associated with cancer progression including NF-κB, MAPK, PI3K/Akt/mTOR, and Wnt/β-catenin pathways. Modulation of these pathways can suppress tumour growth, induce apoptosis, and inhibit angiogenesis and metastasis.

Examples of Prominent Phytochemicals

Several plant-derived molecules including curcumin, thymoquinone, ginsenosides, and resveratrol have demonstrated promising anticancer effects in experimental and clinical studies. These compounds exhibit multitargeted actions and lower toxicity compared with many conventional chemotherapeutic agents.

Clinical Potential and Future Perspectives

Integrating phytochemicals into cancer therapy may improve treatment outcomes and reduce adverse effects associated with conventional treatments. However, extensive pharmacokinetic studies, toxicity assessments, and well-designed clinical trials are required to establish their clinical efficacy and safety.

Conclusion

Plant-derived bioactive compounds offer promising opportunities for the development of novel anticancer therapeutics. Their multitarget mechanisms and relatively low toxicity profile make them attractive candidates for complementary and alternative cancer treatment strategies.