Drug discovery from medicinal plants

Area of Science:

• Pharmacology and Natural Products Chemistry
• Drug Discovery and Development
• Ethnobotany and Phytochemistry

Background:

• Medicinal plants represent a rich source of novel therapeutic compounds.
• Natural products have historically contributed significantly to drug development, addressing diverse diseases.
• Ongoing research validates the importance of botanical sources in modern pharmacology.

Purpose of the Study:

• To highlight the role of medicinal plants in discovering new drug leads for various diseases.
• To present findings from a National Cooperative Drug Discovery Group (NCDDG) project identifying anticancer and chemopreventive compounds.
• To discuss the challenges and opportunities in plant-derived drug discovery.

Main Methods:

• Integrated botanical, phytochemical, biological, and molecular techniques.
• Screening of compounds from tropical rainforest and edible plant species.
• Identification of potential anticancer and chemopreventive agents.

Main Results:

• Identification of numerous compounds with potential anticancer activity from tropical plants.
• Isolation of compounds from edible plants and dietary supplements with possible chemopreventive effects.
• Recent introduction or late-phase clinical trials of several plant-derived drugs (e.g., arteether, galantamine).

Conclusions:

• Medicinal plants continue to be a crucial source for novel drug leads against critical diseases.
• The NCDDG project has successfully identified promising anticancer and chemopreventive compounds.
• Addressing challenges in plant material procurement, screening assays, and compound scale-up is essential for future success.