Fungal Biofilms: Relevance in the Setting of Human Disease

Luis R Martinez1, Bettina C Fries

  • 1Albert Einstein College of Medicine, 1300 Morris Park Avenue Bronx, Morris Park, NY 10461, USA.

Insights

Fungal biofilms on medical devices are a growing problem due to antimicrobial resistance. This review explores fungal biofilm formation and proposes new strategies for prevention and eradication.

Area of Science:

  • Microbiology
  • Biomedical Engineering
  • Infectious Diseases

Background:

  • Indwelling medical devices are increasingly used, leading to a rise in associated infections.
  • Biofilm-forming microbes, particularly fungi, pose significant challenges due to antimicrobial resistance and host defense evasion.
  • Fungal biofilms on medical devices cause substantial morbidity and mortality.

Purpose of the Study:

  • To review recent advances in understanding fungal biofilm formation.
  • To explore the molecular mechanisms underlying fungal biofilm development, including adherence, gene expression, and quorum sensing.
  • To propose novel strategies for preventing and eradicating microbial colonization on medical prosthetic devices.

Main Methods:

  • Literature review of recent research on fungal biofilms.
  • Analysis of studies focusing on fungal surface components, gene regulation, and cell-to-cell communication in biofilm development.
  • Synthesis of findings to identify potential therapeutic targets and preventative measures.

Main Results:

  • Fungal surface components play a crucial role in microbial adherence and biofilm establishment.
  • Gene expression patterns and quorum sensing mechanisms are critical regulators of fungal biofilm formation.
  • Understanding these mechanisms provides insights into developing effective anti-biofilm strategies.

Conclusions:

  • Fungal biofilms represent a significant clinical threat associated with medical devices.
  • Targeting fungal adherence, gene expression, and quorum sensing offers promising avenues for intervention.
  • Novel strategies are needed for the prevention and eradication of fungal colonization on medical devices.

Related Concept Videos

Biofilms01:29

Biofilms

Biofilms are complex communities of microorganisms encased in a self-produced extracellular polysaccharide matrix attached to surfaces. These microbial consortia can include single or multiple species, providing enhanced survival benefits by forming organized, multilayered structures.The formation of biofilms occurs through four key stages: attachment, colonization, development, and dispersal.During attachment, free-swimming planktonic cells adhere to a surface, often facilitated by...
Candidiasis01:20

Candidiasis

Candidiasis is a fungal infection caused by opportunistic species of Candida. It can affect various anatomical sites, including the skin, oral cavity, nails, and genitourinary tract. Among its forms, vaginal candidiasis is the most common type of mucosal infection. It typically results from the overgrowth of Candida albicans in the vaginal mucosa. Under normal conditions, C. albicans exists as a commensal organism within the vaginal microbiota, regulated by the dominance of lactobacilli, which...
Colonisation of Pathogens01:25

Colonisation of Pathogens

Pathogen colonization of host tissues is a critical step in the development of infectious diseases. Various pathogenic microorganisms, including bacteria, fungi, viruses, and protozoa, have evolved complex strategies to attach to, invade, and persist within host environments. These mechanisms enable pathogens to establish infections, evade immune responses, and resist antimicrobial treatments.Attachment to Host CellsIn bacteria, colonization typically begins with adherence to host epithelial...
Overview of Fungi01:29

Overview of Fungi

Fungi are a diverse group of eukaryotes more closely related to animals than other eukaryotes. Fungal cell walls comprise chitin, a polysaccharide that provides structural strength, and glucans, which contribute to flexibility and integrity. Other polysaccharides, such as mannans and galactosans, may supplement or replace chitin in some fungi. These adaptations, along with their preference for acidic environments and tolerance for high osmotic pressure, enable fungi to thrive in various...
Fungal Group Zygomycota01:29

Fungal Group Zygomycota

Zygomycota, previously classified as a distinct fungal group, are primarily terrestrial, saprophytic molds that play a crucial role as decomposers. Recent phylogenetic studies have revealed that these fungi are now divided into two major clades — Mucoromycota, which includes many symbiotic species, and Zoopagomycota, which primarily consists of parasitic and pathogenic fungi. These groups exhibit distinct ecological roles and reproductive strategies while sharing key structural and...
Fungal Phylum Microsporidia01:28

Fungal Phylum Microsporidia

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...