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Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...
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Establishing a Porcine Ex Vivo Cornea Model for Studying Drug Treatments against Bacterial Keratitis
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Pathogenesis of microbial keratitis.

Sahreena Lakhundi1, Ruqaiyyah Siddiqui2, Naveed Ahmed Khan2

  • 1Department of Biological and Biomedical Sciences, Aga Khan University, Karachi, Pakistan.

Microbial Pathogenesis
|December 22, 2016
PubMed
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Microbial keratitis, an eye infection from bacteria, fungi, or protists, threatens sight. Understanding its pathogenesis is key to developing effective treatments that target pathogens and virulence factors.

Keywords:
BacteriaCorneaKeratitisProtistYeast

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Area of Science:

  • Ophthalmology
  • Microbiology
  • Infectious Diseases

Background:

  • Microbial keratitis is a serious ocular infection with significant vision loss potential.
  • Common causative agents include bacteria (Staphylococcus aureus, Pseudomonas aeruginosa), fungi (Fusarium, Candida), and protists (A Acanthamoeba).
  • Epithelial defects are primary risk factors for developing microbial keratitis.

Purpose of the Study:

  • To provide a comprehensive review of microbial keratitis.
  • To discuss the pathogenesis, clinical features, and treatment strategies.
  • To highlight recent advances and future directions in the field.

Main Methods:

  • Literature review of microbial keratitis.
  • Analysis of causative agents and their virulence factors.
  • Discussion of host-pathogen interactions and therapeutic interventions.

Main Results:

  • Identified key bacterial, fungal, and protist pathogens responsible for microbial keratitis.
  • Described clinical manifestations and underlying molecular mechanisms of pathogenesis.
  • Emphasized the need for treatments targeting both pathogens and virulence factors.

Conclusions:

  • A thorough understanding of microbial keratitis pathogenesis is crucial for developing effective therapies.
  • Future research should leverage genomic data and innovative approaches to combat this sight-threatening infection.
  • Integrated treatment strategies are essential for minimizing ocular tissue damage and preserving vision.