Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Determinants of Bacterial Pathogenicity and Virulence01:20

Determinants of Bacterial Pathogenicity and Virulence

Pathogenic bacteria employ a variety of strategies to establish infections, including the secretion of extracellular enzymes that act as potent virulence factors. These enzymes facilitate bacterial colonization of host tissues and help evade immune surveillance. By targeting structural components of host tissues and interfering with immune mechanisms, these enzymes play a pivotal role in disease progression.Extracellular Enzymes Facilitating Tissue Invasion: Several bacterial pathogens secrete...
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...
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...
Malaria01:29

Malaria

Malaria pathogenesis in humans reflects a delicate interplay between parasite biology and host response. Clinical illness reflects a host’s immune response to the parasite’s asexual replication cycle, which is often asymptomatic in individuals with partial immunity. From the parasite's perspective, transmission between mosquito and human with minimal host pathology is evolutionarily advantageous. Among the six Plasmodium species infecting humans, P. falciparum and P. vivax dominate in global...
Introduction to Language of Pathophysiology l01:25

Introduction to Language of Pathophysiology l

Pathophysiology investigates how biological mechanisms—typically starting at the cellular level—disrupt normal bodily functions. It bridges anatomy and physiology to explain the progression of disease. With this foundation, it is important to understand the following key terms used to describe disease processes: Diagnosis:The process of identifying a disease using clinical evaluation, including signs (objective evidence like rashes), symptoms (subjective experiences like pain), laboratory test...
Acute Pancreatitis II: Pathophysiology01:21

Acute Pancreatitis II: Pathophysiology

The pathophysiology of acute pancreatitis centers on injury to pancreatic acinar cells, which initiates a cascade of harmful intracellular events.This injury leads to premature activation of trypsinogen to trypsin in the pancreas. Trypsin then activates other digestive enzymes, such as chymotrypsin, elastase, and phospholipase A2, which begin breaking down pancreatic tissue. The resulting autodigestion causes local inflammation, tissue swelling, hemorrhage, and fat necrosis.Injured acinar cells...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Growing Concerns and Recent Outbreaks Involving Non-O157:H7 Serotypes of Verotoxigenic Escherichia coli.

Journal of food protection·2019
Same author

Alteration of the Microbiota and Virulence Gene Expression in E. coli O157:H7 in Pig Ligated Intestine with and without AE Lesions.

PloS one·2015
Same author

Virulence profiling of Shiga toxin-producing Escherichia coli O111:NM isolates from cattle.

Applied and environmental microbiology·2013
Same author

Grapefruit juice and its constituents augment the effect of low pH on inhibition of survival and adherence to intestinal epithelial cells of Salmonella enterica serovar Typhimurium PT193.

International journal of food microbiology·2012
Same author

Adherence and associated virulence gene expression in acid-treated Escherichia coli O157 : H7 in vitro and in ligated pig intestine.

Microbiology (Reading, England)·2012
Same author

Adherence of Escherichia coli O157:H7 to epithelial cells in vitro and in pig gut loops is affected by bacterial culture conditions.

Canadian journal of veterinary research = Revue canadienne de recherche veterinaire·2011

Related Experiment Video

Updated: Jun 1, 2026

Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation
07:15

Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation

Published on: January 16, 2019

Relevance in pathogenesis research.

Carlton L Gyles1

  • 1Department of Pathobiology, University of Guelph, Guelph, Ontario, N1G 2W1 Canada. cgyles@uoguelph.ca

Veterinary Microbiology
|May 20, 2011
PubMed
Summary
This summary is machine-generated.

Understanding bacterial pathogenesis requires studying complex pathogen, host, and environment interactions. Advanced techniques like genomics aid research, but in vivo studies remain crucial for a complete picture of bacterial disease.

More Related Videos

A Mouse Model for Pathogen-induced Chronic Inflammation at Local and Systemic Sites
09:52

A Mouse Model for Pathogen-induced Chronic Inflammation at Local and Systemic Sites

Published on: August 8, 2014

Mouse Footpad Inoculation Model to Study Viral-Induced Neuroinflammatory Responses
09:07

Mouse Footpad Inoculation Model to Study Viral-Induced Neuroinflammatory Responses

Published on: June 14, 2020

Related Experiment Videos

Last Updated: Jun 1, 2026

Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation
07:15

Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation

Published on: January 16, 2019

A Mouse Model for Pathogen-induced Chronic Inflammation at Local and Systemic Sites
09:52

A Mouse Model for Pathogen-induced Chronic Inflammation at Local and Systemic Sites

Published on: August 8, 2014

Mouse Footpad Inoculation Model to Study Viral-Induced Neuroinflammatory Responses
09:07

Mouse Footpad Inoculation Model to Study Viral-Induced Neuroinflammatory Responses

Published on: June 14, 2020

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Molecular Biology

Background:

  • Bacterial pathogenesis research explores complex pathogen-host-environment interactions.
  • Early research focused on simpler host-parasite interactions like toxin-induced diseases.
  • Modern approaches utilize molecular genetics, genomics, and proteomics to understand pathogens and hosts.

Purpose of the Study:

  • To review the complexities of bacterial pathogenesis.
  • To highlight the challenges in interpreting large datasets from modern molecular studies.
  • To emphasize the importance of considering environmental factors and host responses.

Main Methods:

  • Review of existing literature on bacterial pathogenesis.
  • Discussion of in vitro approaches simulating host environments (temperature, pH, iron).
  • Consideration of molecular techniques (genetics, genomics, proteomics) and their limitations.

Main Results:

  • Bacterial survival and transmission involve diverse strategies.
  • In vitro studies can identify virulence factors but often oversimplify complex host-pathogen dynamics.
  • Regulation of bacterial virulence and host response is intricate and environment-dependent.

Conclusions:

  • Pathogenesis is a dynamic process with critical, environmentally regulated gene expression.
  • Understanding bacterial disease requires integrating molecular data with in vivo observations.
  • Ethical and economic factors can limit experimental infections, posing a challenge to comprehensive research.