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Antibacterial Effects of Flavonoids and Their Structure-Activity Relationship Study: A Comparative Interpretation
Nur Farisya Shamsudin1, Qamar Uddin Ahmed1, Syed Mahmood2,3
1Drug Design and Synthesis Research Group, Department of Pharmaceutical Chemistry, Kulliyyah of Pharmacy, International Islamic University Malaysia, Kuantan 25200, Pahang D. M., Malaysia.
Molecules (Basel, Switzerland)
|February 25, 2022
Summary
Flavonoids, natural compounds, show promise in combating multidrug-resistant bacteria. Modifications like hydroxylation enhance their antibacterial activity, offering potential for new treatments.
Area of Science:
- Pharmacology
- Natural Products Chemistry
- Microbiology
Background:
- Bacterial resistance to antibiotics is a severe global health threat.
- Multidrug-resistant (MDR) bacteria pose significant challenges for infection treatment.
- Natural products are explored as alternative antimicrobial agents.
Purpose of the Study:
- To review the antibacterial activity of flavonoids against MDR bacteria.
- To analyze the structure-activity relationship (SAR) of flavonoids.
- To identify potential for developing novel antibacterial agents from flavonoids.
Main Methods:
- Literature review of studies on flavonoid antibacterial properties.
- Analysis of chemical modifications and their impact on activity.
- Focus on structure-activity relationships for antibacterial efficacy.
Main Results:
- Flavonoids exhibit broad-spectrum antibacterial activity, including against MDR strains.
- Specific structural modifications, such as hydroxylation at C5, C7, C3', and C4', enhance antibacterial action.
- Modifications like geranylation or prenylation at C6 also increase bacterial inhibition.
- Methoxylation at C3' and C5 can decrease antibacterial efficacy.
Conclusions:
- Flavonoids are promising natural compounds for developing new antibacterial agents.
- Understanding the SAR of flavonoids is crucial for designing potent and safe drugs.
- Targeted structural modifications can optimize the antibacterial properties of flavonoids.
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