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From a Natural Product to Its Biosynthetic Gene Cluster: A Demonstration Using Polyketomycin from Streptomyces diastatochromogenes Tü6028
Published on: January 13, 2017
The Kdo biosynthetic pathway toward OM biogenesis as target in antibacterial drug design and development
Laura Cipolla1, Alessandra Polissi, Cristina Airoldi
1Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milano, Italy. laura.cipolla@unimib.it
Abstract:
Despite important advances made in the last century, infectious diseases caused by pathogenic microrganisms are still a major threat to human health. This is worsened by the occurrence of new forms of bacterial resistance against antibiotics, that are the main remedy against infectious diseases, and their rapid spreading across bacterial species, pose additional threats to our health. Thus, the necessity to develop new weapons against pathogenic bacteria is widely recognized as a major challenge for modern drug research. Traditional antibiotic discovery procedures have so far focused on inhibiting the main processes of the bacterial cell (replication, transcription, translation, and peptidoglycan synthesis). This review will give an overview of the therapeutic strategies to cure infectious diseases caused by Gram-negative bacteria through the development of inhibitors of Kdo biosynthesis. Kdo is a monsaccharide essential for OM biogenesis, OM being an essential cellular structure shared by all Gram-negative bacteria. Hence, inhibitors of its biosynthesis can have a broad-spectrum antibacterial activity.
Insights
New strategies targeting Kdo biosynthesis offer a promising approach to combat antibiotic-resistant bacteria. Inhibiting this essential pathway in Gram-negative bacteria could lead to broad-spectrum antibacterial treatments.
Area of Science:
- Microbiology
- Drug Discovery
- Biochemistry
Background:
- Infectious diseases remain a significant global health threat, exacerbated by rising antibiotic resistance.
- Traditional antibiotics target essential bacterial processes but face challenges from evolving resistance mechanisms.
- Developing novel antibacterial agents is crucial to address the growing threat of pathogenic microorganisms.
Purpose of the Study:
- To review therapeutic strategies for infectious diseases caused by Gram-negative bacteria.
- To explore the development of inhibitors targeting Kdo (2-keto-3-deoxy-D-mannose) biosynthesis.
- To highlight the potential of Kdo biosynthesis inhibitors as broad-spectrum antibacterial agents.
Main Methods:
- Literature review of current research on Kdo biosynthesis and its role in bacterial outer membrane biogenesis.
- Analysis of traditional antibiotic discovery approaches and their limitations.
- Evaluation of Kdo biosynthesis as a novel target for antibacterial drug development.
Main Results:
- Kdo is a unique monosaccharide essential for the biogenesis of the outer membrane in Gram-negative bacteria.
- Inhibiting Kdo biosynthesis disrupts outer membrane integrity, leading to bacterial cell death.
- Targeting Kdo biosynthesis presents a viable strategy for developing new antibacterial drugs.
Conclusions:
- Inhibitors of Kdo biosynthesis represent a promising therapeutic avenue against Gram-negative bacterial infections.
- This approach offers potential for broad-spectrum activity, addressing the challenge of antibiotic resistance.
- Further research into Kdo biosynthesis inhibitors is warranted for novel drug discovery.
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Inhibitors of Bacterial Protein Synthesis
Inhibitors of Gram-positive Cell Wall Synthesis
Development of Antibiotic Resistance
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