Pathogenicity of microbes associated with cystic fibrosis

M L Hutchison1, J R Govan

  • 1Cystic Fibrosis Laboratory, Department of Medical Microbiology, University of Edinburgh Medical School, Teviot Place, Edinburgh EH8 9AG, Scotland, UK.

Microbes and Infection
|January 5, 2000
PubMed

Insights

Cystic fibrosis (CF) patients often develop lung infections from specific bacteria. This review examines key microbes, their harmful traits, and resistance, impacting CF patient survival.

Area of Science:

  • Pulmonary Medicine
  • Microbiology
  • Immunology

Background:

  • Cystic fibrosis (CF) patients exhibit heightened susceptibility to bacterial colonization.
  • Pulmonary infections are a primary driver of morbidity and mortality in CF lung disease.
  • Understanding microbial pathogenesis is crucial for improving patient outcomes.

Purpose of the Study:

  • To review classically associated CF pathogens.
  • To analyze microbial virulence, inflammatory potential, and resistance mechanisms.
  • To elucidate their contribution to reduced life expectancy in colonized CF patients.

Main Methods:

  • Literature review of pathogenic bacteria in cystic fibrosis.
  • Analysis of virulence factors and host-pathogen interactions.
  • Examination of antimicrobial resistance patterns.

Main Results:

  • Specific bacterial species dominate CF lung infections.
  • Virulence factors and inflammatory responses exacerbate lung damage.
  • Antimicrobial resistance poses significant treatment challenges.

Conclusions:

  • Targeting specific microbial virulence and resistance mechanisms is critical.
  • Comprehensive understanding of CF-associated microbes can inform therapeutic strategies.
  • Improved management of bacterial infections may enhance CF patient longevity.

Related Concept Videos

Cystic Fibrosis: Pathogenesis01:23

Cystic Fibrosis: Pathogenesis

Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation, but...
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...
Microbiota of the Respiratory Tract01:29

Microbiota of the Respiratory Tract

The human respiratory tract, comprising the upper and lower segments, serves as a critical interface with the external environment. The upper respiratory tract (URT)—including the nostrils, sinuses, pharynx, and oropharynx—is heavily colonized by microbes, while the lower respiratory tract (LRT), composed of the larynx, trachea, bronchi, and lungs, was long thought to be sterile. However, recent molecular studies have revealed that the lungs are not devoid of microbes but act more like...
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...
Atypical Pneumonia01:14

Atypical Pneumonia

Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...
Amebiasis01:28

Amebiasis

Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...