Phytochemicals as Chemo-Preventive Agents and Signaling Molecule Modulators: Current Role in Cancer Therapeutics and...

Area of Science:

• Oncology and Natural Product Chemistry
• Molecular Biology and Cancer Research

Background:

• Cancer remains a leading cause of mortality, with limited improvements in survival rates despite advances in conventional therapies.
• There is a critical need for novel chemopreventive agents and strategies to complement existing cancer treatments and enhance efficacy.
• Phytochemicals from fruits and vegetables offer a promising avenue for developing new cancer therapies and chemoprevention.

Approach:

• This review examines the anticancer effects of specific phytochemicals, including quercetin, curcumin, piperine, epigallocatechin gallate (EGCG), and gingerol.
• It focuses on four major classes of plant-derived anticancer agents: epipodophyllotoxin, camptothecin derivatives, taxane diterpenoids, and vinca alkaloids, detailing their mechanisms of action.
• The review analyzes cancer-associated signaling pathways and the role of inflammation in tumor progression.

Key Points:

• Phytochemicals can inhibit tumor development by regulating molecular pathways, enhancing antioxidant status, and modulating the immune system.
• These natural compounds can inactivate carcinogens, suppress cell proliferation, and induce cell cycle arrest and apoptosis.
• Plant-derived agents like taxanes and vinca alkaloids are established chemotherapeutics, while others like curcumin show significant potential.

Conclusions:

• Plant-derived compounds represent a valuable resource for developing effective cancer chemoprevention and treatment strategies.
• Targeting molecular pathways and inflammation is crucial for harnessing the full potential of phytochemicals in oncology.
• Further research into these natural agents could lead to improved therapeutic outcomes and increased cancer survival rates.