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Related Concept Videos

Biofilms01:29

Biofilms

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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...
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Coryneform bacteria are gram-positive, aerobic, nonmotile rods that exhibit irregular, club-shaped, or V-shaped arrangements. Their V-shape results from snapping division, where the inner cell wall layer forms the cross-wall, while the outer layer remains intact until it ruptures on one side, causing the daughter cells to bend away.The primary genera are Corynebacterium and Arthrobacter. Corynebacterium includes diverse species, ranging from saprophytes to pathogens like Corynebacterium...
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Author Spotlight: Advancing Mycobacterial Biofilm Protocols for Enhanced Bacterial Metabolism Research
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Author Spotlight: Advancing Mycobacterial Biofilm Protocols for Enhanced Bacterial Metabolism Research

Published on: July 12, 2024

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Mycobacterium biofilms.

Maria-Carmen Muñoz-Egea1,2, Arij Akir1, Jaime Esteban1,2

  • 1Department of Clinical Microbiology, IIS-Fundación Jiménez Díaz, UAM, Av. Reyes Católicos 2, 28040, Madrid, Spain.

Biofilm
|February 17, 2023
PubMed
Summary
This summary is machine-generated.

Mycobacterial biofilms, particularly from nontuberculous mycobacteria (NTM), pose increasing challenges due to enhanced antimicrobial resistance. New diagnostic and treatment strategies are urgently needed for these persistent infections.

Keywords:
BiofilmMycobacteriosisMycobacteriumNontuberculous mycobacteriaTreatment

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Area of Science:

  • Microbiology
  • Infectious Diseases
  • Biochemistry

Background:

  • The genus *Mycobacterium* contains dangerous pathogens like *M. tuberculosis* and *M. leprae*, alongside environmental species.
  • Nontuberculous mycobacteria (NTM) are increasingly recognized as human pathogens, driving research into mycobacterial biofilms.
  • Mycobacterial biofilms exhibit unique structures, notably lipidic components in their extracellular matrix, differing from other microbes.

Purpose of the Study:

  • To review the current understanding of mycobacterial biofilms, focusing on their structure, clinical significance, and challenges in diagnosis and treatment.
  • To highlight the role of biofilms in antimicrobial resistance and the need for novel therapeutic approaches.

Main Methods:

  • Literature review of studies on mycobacterial biofilms, including molecular mechanisms, clinical relevance, and diagnostic/therapeutic strategies.
  • Analysis of the unique composition of mycobacterial extracellular matrix, emphasizing lipidic molecules.
  • Evaluation of current diagnostic and antimicrobial susceptibility testing methods for mycobacterial infections.

Main Results:

  • Mycobacterial biofilms, including those of *M. tuberculosis*, contribute to chronic infections and display significant antimicrobial resistance.
  • Lipidic molecules are key components of the mycobacterial extracellular matrix, influencing biofilm properties.
  • Existing diagnostic and treatment protocols are often inadequate for NTM infections, necessitating specialized approaches.

Conclusions:

  • Mycobacterial biofilms represent a critical factor in the persistence and treatment failure of NTM infections.
  • The unique biofilm structure and associated drug resistance underscore the urgent need for new diagnostic tools and therapeutic interventions.
  • Developing targeted strategies for mycobacterial biofilms is essential to manage the growing global burden of these infections.