Related Experiment Video
Updated: Jul 20, 2025
07:16
Development of a Polymicrobial Colony Biofilm Model to Test Antimicrobials in Cystic Fibrosis
Published on: September 20, 2024
1.1K
Biofilms and their role on diseases
Vijay Singh Gondil1, Bindu Subhadra2
1Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY, 14642, USA.
BMC Microbiology
|July 31, 2023
Summary
Biofilms are microbial communities that protect bacteria from immune responses and antibiotics. Understanding biofilms is crucial for combating infectious diseases and improving healthcare outcomes.
Area of Science:
- Microbiology
- Pathogenesis
- Immunology
Background:
- Biofilms are complex microbial communities offering microorganisms a survival advantage.
- These structures contribute significantly to disease development by evading immune defenses.
- Biofilm formation leads to antimicrobial resistance, posing challenges to conventional treatments.
Discussion:
- The study highlights the critical role of biofilms in infectious diseases.
- It emphasizes the need to understand biofilm mechanisms for effective therapeutic strategies.
- The impact of biofilms on human health and healthcare systems is substantial.
Key Insights:
- Microbial biofilms present a significant challenge in healthcare due to immune evasion.
- High resistance of biofilms to antimicrobials necessitates novel treatment approaches.
- Biofilms are implicated in various persistent and difficult-to-treat infections.
Outlook:
- Further research into biofilm structure and function is essential.
- Developing targeted anti-biofilm therapies is a key future direction.
- This collection aims to advance the understanding and control of biofilm-related diseases.
Related Concept Videos
01:29Biofilms
56
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...
56
01:28Gene Regulation in Microbial Communities: Quorum Sensing
40
Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
40
01:30Bacterial Signaling
32.8K
Bacterial signaling can occur within bacteria (intracellular) or between bacteria (intercellular). At times, a group of bacteria behaves like a community. To achieve this, they engage in quorum sensing, the perception of higher cell density that causes changes in gene expression. Quorum sensing involves both extracellular and intracellular signaling. The signaling cascade starts with a molecule called an autoinducer (AI). Individual bacteria produce AIs that move out of the bacterial cell...
32.8K
01:27Overview of Protists
52
Protists are diverse eukaryotic microorganisms that lack the specialized tissues of plants and animals and the chitinous cell walls of fungi. Their early divergence within Eukarya resulted in structural, functional, and ecological diversity. They are classified into supergroups such as Archaeplastida, Excavata, Amoebozoa, Rhizaria, Alveolata, and Stramenopiles, determined through genetic analysis and structural similarities.Structural and Functional AdaptationsProtists have various adaptations...
52
01:20Infection
8.1K
When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
8.1K
01:29Overview of Fungi
56
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...
56