In Vitro Stimulation
In Vitro Stimulation - Related Videos
07:00
Excitotoxic Stimulation of Brain Microslices as an In vitro Model of Stroke
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Cited by 3 •
2014
We have developed a brain slice model which can be used to examine molecular mechanisms involved in excitotoxicity-mediated brain injury. This technique generates viable mature brain tissue and reduces animal numbers required for experimentation, whilst keeping the neuronal circuitry, cellular interactions, and postsynaptic compartments partly intact.
11:44
Stimulation of Cytoplasmic DNA Sensing Pathways In Vitro and In Vivo
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Cited by 1 •
2014
The aim of the protocol is to use optimal methods for stimulating the cytoplasmic DNA sensing pathways in cells and in vivo. This is achieved by improving the generation of long, double-stranded DNA during blunt-end ligation. Cells or mice are then transfected using a lipid transfection reagent.
03:23
An In Vitro Technique to Stimulate Lymphocytes via Pathogenic Bacteria
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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.
04:31
In Vitro Stimulation and Visualization of Macrophage Extracellular Traps
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2025
This video demonstrates in vitro stimulation of macrophage extracellular traps (METs) in human monocyte-derive macrophages using different inflammatory stimuli such as TNF-alpha, PMA, and HOCL. The video also demonstrates the method of SYTOX dye staining of METs for visualization.
11:02
Combining Transcranial Magnetic Stimulation and fMRI to Examine the Default Mode Network
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Cited by 17 •
2010
In this article, we examine the methodology and considerations relevant to the combination of TMS and fMRI to examine the effects of brain stimulation on the default network.
FAQs
An applied cue changes cell behavior by engaging cellular receptors and downstream intracellular pathways. Those pathways can alter proliferation, differentiation, migration, or tissue organization, depending on the signal presented and the biological system receiving it. Tracking these outcomes connects an external intervention to a measurable cellular response, helping bioengineers examine how engineered environments regulate function.
Different cue classes provide distinct ways to regulate cells or engineered constructs. Electrical and mechanical inputs represent physical signals, whereas chemical and biochemical inputs provide molecular or biological instructions. Comparing these categories helps researchers determine which type of stimulus produces a desired response, such as altered differentiation, migration, proliferation, or organization, in a selected bioengineering model.
Separating one stimulus from other environmental influences makes it easier to associate a measured response with that cue. Researchers can then evaluate changes in cell behavior or tissue organization under controlled conditions rather than treating the entire engineered environment as one factor. This supports clearer analysis of cell-material interactions and the mechanisms guiding construct behavior.
A typical design begins by selecting cells, tissues, or an engineered biological construct and identifying the behavior to measure. Researchers then choose an appropriate electrical, mechanical, chemical, or biochemical cue, apply it under controlled laboratory conditions, and assess responses such as proliferation, differentiation, migration, or organization. The resulting measurements allow comparison between stimulated and experimental systems.
Bioengineers use this approach when they need to guide cellular behavior within an engineered tissue or evaluate how a biomaterial interacts with cells. Applying defined cues can reveal whether a construct supports desirable changes in proliferation, differentiation, migration, or organization. These findings help inform strategies for tissue regeneration while keeping the experimental environment reproducible and measurable.
Controlled stimulation systems provide laboratory models in which researchers can examine cellular responses to selected cues and evaluate potential therapeutic strategies. Because the stimulus and biological setting can be studied separately, the systems help clarify mechanisms that may be difficult to isolate in an organism. They also support reproducible assessment of engineered constructs and disease-relevant cellular behavior.