Contributions of the Biofilm Matrix to Candida Pathogenesis

Jeniel E Nett1, David R Andes1

  • 1Departments of Medicine and Medical Microbiology & Immunology, University of Wisconsin-Madison, Madison, WI 53706, USA.

Insights

Candida biofilms on medical devices cause invasive infections. Their protective matrix aids fungal survival, promoting antifungal drug tolerance and immune evasion, leading to high mortality.

Area of Science:

  • Medical Mycology
  • Infectious Diseases
  • Biomaterials Science

Background:

  • Invasive fungal infections, primarily caused by *Candida* species, are a significant cause of mortality in healthcare settings.
  • These infections are frequently associated with indwelling medical devices, particularly vascular catheters.
  • *Candida* forms resilient biofilms on these devices, characterized by an extracellular matrix that enhances adhesion and protection.

Purpose of the Study:

  • To review the medical significance of device-associated *Candida* biofilms.
  • To elucidate the process of *Candida*-biofilm-matrix production.
  • To update the understanding of the extracellular matrix's role in fungal pathogenicity, antifungal drug tolerance, and immune evasion.

Main Methods:

  • Literature review focusing on *Candida* biofilms and their extracellular matrix.
  • Analysis of current research on biofilm formation and pathogenicity mechanisms.
  • Synthesis of information regarding the matrix's contribution to antifungal resistance and immune evasion.

Main Results:

  • Device-associated *Candida* biofilms represent a critical challenge in healthcare-associated infections.
  • The extracellular matrix is pivotal in promoting fungal adhesion to medical devices.
  • The matrix plays a key role in conferring antifungal drug tolerance and facilitating immune evasion by *Candida*.

Conclusions:

  • Understanding *Candida* biofilm matrix production is crucial for developing effective therapeutic strategies.
  • Targeting the biofilm matrix may offer a novel approach to combatting device-associated candidiasis.
  • Further research into matrix composition and function is warranted to improve patient outcomes.