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Pseudomonas aeruginosa biofilm: potential therapeutic targets
Garima Sharma1, Saloni Rao1, Ankiti Bansal1
1Department of Biotechnology, Jaypee Institute of Information Technology, A-10, Sector-62, Noida 201307, India.
Abstract:
Pseudomonas aeruginosa is a gram-negative pathogen that has become an important cause of infection, especially in patients with compromised host defense mechanisms. It is frequently related to nosocomial infections such as pneumonia, urinary tract infections (UTIs) and bacteremia. The biofilm formed by the bacteria allows it to adhere to any surface, living or non-living and thus Pseudomonal infections can involve any part of the body. Further, the adaptive and genetic changes of the micro-organisms within the biofilm make them resistant to all known antimicrobial agents making the Pseudomonal infections complicated and life threatening. Pel, Psl and Alg operons present in P. aeruginosa are responsible for the biosynthesis of extracellular polysaccharide which plays an important role in cell-cell and cell-surface interactions during biofilm formation. Understanding the bacterial virulence which depends on a large number of cell-associated and extracellular factors is essential to know the potential drug targets for future studies. Current novel methods like small molecule based inhibitors, phytochemicals, bacteriophage therapy, photodynamic therapy, antimicrobial peptides, monoclonal antibodies and nanoparticles to curtail the biofilm formed by P. aeruginosa are being discussed in this review.
Insights
Pseudomonas aeruginosa infections are a major threat, especially in vulnerable patients. This review explores novel strategies to combat the resilient biofilms formed by this pathogen.
Area of Science:
- Microbiology
- Infectious Diseases
- Biotechnology
Background:
- Pseudomonas aeruginosa is a gram-negative bacterium frequently causing nosocomial infections like pneumonia and UTIs.
- The bacteria form biofilms, enabling adherence to surfaces and leading to antimicrobial resistance.
- Pseudomonal infections are complicated and life-threatening due to adaptive and genetic changes within biofilms.
Purpose of the Study:
- To review current novel methods for combating Pseudomonas aeruginosa biofilms.
- To highlight potential drug targets by understanding bacterial virulence factors.
- To provide an overview of emerging therapeutic strategies against P. aeruginosa.
Main Methods:
- Review of current literature on Pseudomonas aeruginosa biofilm formation and virulence.
- Analysis of novel therapeutic approaches targeting P. aeruginosa biofilms.
- Discussion of genetic and adaptive mechanisms contributing to P. aeruginosa resistance.
Main Results:
- Pel, Psl, and Alg operons are crucial for extracellular polysaccharide biosynthesis in P. aeruginosa biofilms.
- Biofilm formation enhances bacterial resistance to antimicrobial agents.
- Understanding virulence factors is key to identifying new drug targets.
Conclusions:
- Novel therapeutic strategies are emerging to combat P. aeruginosa biofilms.
- Targeting biofilm formation and virulence factors offers promising avenues for treatment.
- Further research into these novel methods is essential for managing P. aeruginosa infections.
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