Prenylated flavonoids from Commiphora opobalsamum stem bark

Area of Science:

• Phytochemistry
• Natural Products Chemistry
• Pharmacology

Background:

• Commiphora opobalsamum is a plant species with a history of traditional medicinal use.
• Investigating the chemical constituents of medicinal plants can lead to the discovery of novel therapeutic agents.
• Cytotoxic compounds are of interest for their potential in cancer treatment.

Purpose of the Study:

• To isolate and characterize phytochemicals from the stem bark of Commiphora opobalsamum.
• To evaluate the cytotoxic activity of isolated compounds against human cancer cell lines.

Main Methods:

• Phytochemical investigation of Commiphora opobalsamum stem bark using spectroscopic methods (e.g., NMR, MS).
• Isolation of eleven flavonoids, including six new prenylated compounds (comophorin A-E) and comophoroside A.
• In vitro cytotoxicity assessment using the MTT assay against HepG-2 and MCF-7 cancer cell lines.

Main Results:

• Six new prenylated flavonoids (comophorin A-E) and comophoroside A were isolated and their structures elucidated.
• Comophoroside A exhibited the most potent cytotoxic activity against both HepG-2 and MCF-7 cell lines.
• The IC50 values for comophoroside A were 12 μg/mL against HepG-2 and 8 μg/mL against MCF-7 cells.

Conclusions:

• Commiphora opobalsamum is a source of cytotoxic flavonoids.
• Comophoroside A is a promising lead compound for the development of novel anticancer therapeutics.
• Further research into comophoroside A's mechanism of action and in vivo efficacy is warranted.