In Vitro Technique
In Vitro Technique - Related Videos
08:30
Neonatal Murine Cochlear Explant Technique as an In Vitro Screening Tool in Hearing Research
0 Views •
Cited by 25 •
2017
The goal of this protocol is to demonstrate the preparation, culture, treatment, and immunostaining of neonatal murine cochlear explants. The technique can be utilized as an in vitro screening tool in hearing research.
04:02
An In Vitro Technique to Generate Human Neutrophil Extracellular Traps
0 Views •
2025
This video demonstrates an in vitro technique to generate and isolate neutrophil extracellular traps (NETs). Neutrophils are isolated from peripheral blood and stimulated with phorbol myristate acetate (PMA) to produce NETs. During incubation, the neutrophils undergo a process of cell death (NETosis) to release NETs comprising decondensed chromatin mixed with granular cytoplasmic proteins.
08:25
Advanced 3D Liver Models for In vitro Genotoxicity Testing Following Long-Term Nanomaterial Exposure
0 Views •
Cited by 21 •
2020
This procedure was established to be used for developing advanced 3D hepatic cultures in vitro, which can provide a more physiologically relevant assessment of the genotoxic hazards associated with nanomaterial exposures over both an acute or long-term, repeated dose regimes.
03:23
An In Vitro Technique to Stimulate Lymphocytes via Pathogenic Bacteria
0 Views •
2025
This video demonstrates an in vitro technique to stimulate lymphocytes via non-typeable Haemophilus influenzae (NTHi) and to assess the immune response. Incubating isolated peripheral blood mononuclear cells (PBMCs) with NTHi causes the bacterial cells to stimulate T lymphocytes, leading to cytokine production. Upon inhibiting the secretion of cytokines, immunofluorescence staining is performed to detect the accumulated intracellular cytokines in stimulated T lymphocytes.
03:06
An In Vitro Technique to Study Inflammasome Complex Formation in Macrophages
0 Views •
2025
This video demonstrates a technique to study NOD-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome formation in primary macrophages via immunofluorescence. The macrophages are first primed with bacterial lipopolysaccharide (LPS) to upregulate NLRP3 protein expression. Exposing the macrophages to nigericin—a potassium ionophore—leads to the activation of NLRP3 and the formation of inflammasomes, which are visualized via immunofluorescence.
FAQs
Controlled conditions allow researchers to isolate selected biological variables rather than observing many interacting influences at once. They can maintain cultured cells, tissues, or purified molecules under defined conditions, introduce a specific stimulus, and measure the resulting response. This design supports reproducible comparisons between experimental treatments and helps reveal mechanisms involved in immunity or infection.
The system may contain cultured cells, tissues, or purified molecules, depending on the question being investigated. Researchers can examine antigen recognition, antibody binding, cytokine release, or pathogen replication as measurable outcomes. Selecting a focused component and an appropriate response helps connect a defined experimental stimulus with a specific immune or infection-related process.
An isolated laboratory system can clarify specific mechanisms, but it does not reproduce every interaction present in a complete living organism. Results therefore provide focused evidence rather than a complete account of disease biology or treatment performance. Validation in more complex models helps determine whether an observed immune, pathogen, or treatment effect remains relevant beyond the controlled experiment.
A typical workflow begins by selecting a relevant cultured cell, tissue, or purified molecule system and maintaining it under defined conditions. Researchers then expose the system to a chosen stimulus, such as an antigen, antibody-related interaction, pathogen, or treatment, and measure a response such as cytokine release or pathogen replication. Comparisons reveal treatment or stimulus effects.
Researchers may choose this approach when they need to examine host-pathogen interactions while isolating particular biological variables. It can support investigation of immune recognition, antibody binding, cytokine responses, or pathogen replication and can help compare treatment effects. These focused experiments also assist in characterizing immune mechanisms and evaluating antimicrobial or vaccine candidates before more complex validation.
In vitro systems provide controlled settings for evaluating how candidate treatments or vaccine-related interventions affect relevant immune or infection processes. Researchers can compare responses across conditions, examine pathogen replication, and assess outcomes such as antibody binding or cytokine release. The resulting evidence can guide candidate characterization and therapeutic development, while later validation addresses the limits of the simplified system.