In Vitro Infection Model
In Vitro Infection Model - Related Videos
07:57
An In Vitro Bladder Model of Catheter-Associated Urinary Tract Infection
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Cited by 1 •
2025
This protocol details an in vitro model of the catheterized urinary tract, which can be used to study both planktonic and biofilm-associated bacterial cell populations in simulated catheter-associated urinary tract infections. This model can be further utilized to study the efficacy of antimicrobial products aimed at controlling urinary tract infections.
02:49
Generation of an In Vitro Cell Culture Model of Malaria-HIV Co-Infection
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2025
This video demonstrates the generation of an in vitro malaria-HIV co-infection cell culture model. HIV-infected peripheral blood mononuclear cells co-cultured with Plasmodium falciparum parasitized erythrocytes potentially support each other's growth and provide insights into the immune responses and disease progression in HIV and malaria co-infections.
02:41
An In Vitro Model for Studying Pathogen Crossing of the Blood-Brain Barrier and Brain Cell Infection
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2025
This video demonstrates an in vitro model to study pathogens crossing the blood-brain barrier (BBB). Microvascular endothelial cells, which express tight junctions, form an endothelial layer in the upper chamber, while neurons, astrocytes, and microglia represent the brain parenchyma in the lower chamber, separated by a porous membrane. Virus infection in the BBB model mimics the pathogen crossing from blood to the brain. Upon introducing a neurotropic virus, it crosses the BBB via...
02:47
Developing an In Vitro Model of Zika Virus Infection in Cerebral Organoids
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2025
This video demonstrates the establishment of an in vitro model of Zika virus infection in a developing brain. Human cerebral organoids containing rosettes of stem cells, neural progenitor cells (NPCs), and neurons are infected with the Zika virus. The virus infects NPCs and triggers apoptosis, disrupting organoid development.
08:14
An In Vitro Model for Measuring Immune Responses to Malaria in the Context of HIV Co-infection
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Cited by 1 •
2015
Human co-infection is difficult to replicate in vitro. However, human malaria parasites can readily be cultured in vitro, as can freshly isolated human peripheral blood mononuclear cells naturally infected with HIV. This provides an excellent model for studying early immune responses to malaria parasites in the context of HIV co-infection.
FAQs
The model connects pathogen activity with measurable host-cell responses. After exposure, researchers can examine replication and cell injury alongside cytokine production and innate immune signaling. Considering these outcomes together helps investigators study how infectious agents affect host cells and how host defenses respond under controlled laboratory conditions.
Defined culture conditions reduce experimental variability by allowing researchers to control how relevant cells or tissues encounter the infectious agent. This consistency supports detailed comparisons between experimental groups, including differences in pathogen replication, cell injury, or immune signaling. As a result, observed changes can be evaluated more systematically than in less controlled settings.
In vitro infection models complement animal studies by providing controlled access to interactions between infectious agents and host cells. They support detailed measurements of replication, cellular injury, cytokine production, and innate immune signaling while reducing experimental variability. Findings from these systems can therefore help clarify infection mechanisms and guide questions for subsequent research in whole organisms.
A typical workflow selects relevant cultured cells or tissues, exposes them to a bacterium, virus, fungus, or parasite under defined conditions, and then monitors infection-associated outcomes. Researchers may assess pathogen replication, cell injury, cytokine production, or innate immune signaling. Comparing these measurements across conditions helps characterize both pathogen behavior and host responses.
Measurements can address several levels of the infection process. Pathogen replication indicates how the infectious agent changes in the system, while cell injury reflects effects on the host material. Cytokine production and innate immune signaling provide evidence of host defense activity. Together, these outcomes create a broader picture of pathogenesis and immunity than any single measurement.
Researchers can use these models to evaluate antimicrobial or antiviral treatments by monitoring how interventions affect infection-associated outcomes. The same systems can help assess responses induced by vaccines, including changes in host immune measurements. Because conditions and readouts are controlled, the approach supports focused investigation before findings are integrated with broader immunology and infection studies.