Tissue-specific Injection
Tissue-specific Injection - Related Videos
02:56
Orthotopic Injection: Implanting Tissue Specific Cancer Cells into an Adult Mouse
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2023
The video demonstrates the breast cancer orthotopic inoculation technique in a mouse model. This technique produces a high tumorigenesis rate with less variability in tumor size and shape compared to subcutaneous or non-surgical injection.
06:53
A Simple Alternative to Stereotactic Injection for Brain Specific Knockdown of miRNA
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Cited by 6 •
2015
MicroRNAs play crucial roles in the brain and are potential targets for modeling neuro-degeneration. However, perturbing miRNA levels is challenging due to the short length of miRNA and inaccessibility of the brain tissue. This video presents a method for antagomir design and brain specific delivery using a neuropeptide in mice.
11:32
Fabrication of Biologically Derived Injectable Materials for Myocardial Tissue Engineering
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Cited by 14 •
2010
Methods for preparing an injectable matrix gel from decellularized tissue and injecting it into rat myocardium in vivo are described.
08:34
Bioprinting Cellularized Constructs Using a Tissue-specific Hydrogel Bioink
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Cited by 59 •
2016
We describe a set of protocols that together provide a tissue-mimicking hydrogel bioink with which functional and viable 3-D tissue constructs can be bioprinted for use in in vitro screening applications.
08:54
Human In-Vivo Bioassay for the Tissue-Specific Measurement of Nociceptive and Inflammatory Mediators
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Cited by 3 •
2008
A technique is presented for the in-vivo collection of interstitial fluid samples from pertinent tissue sites (here, experimentally inflamed skin) for the measurement of biochemicals mediating pain and inflammation.
FAQs
The injected material does not distribute uniformly after placement. Tissue architecture and local conditions can shape where it moves, how readily cells or molecules take it up, and which biological responses follow. Consequently, the same material may produce different developmental effects depending on the anatomical site selected and the properties of that tissue.
A defined anatomical site links the experimental intervention to a particular region of the developing organism. This spatial relationship helps researchers examine how a signaling factor or gene-regulating reagent affects nearby tissue formation, differentiation, or patterning. Interpreting the result therefore requires considering both the material delivered and the developmental role of the targeted tissue.
Localized delivery concentrates an experimental material at a selected tissue while limiting exposure elsewhere. That distinction can make it easier to associate a biological response with the treated region rather than with a general effect throughout the organism. The approach is especially informative when researchers want to connect a regional manipulation with tissue-specific developmental outcomes.
The technique can introduce cells, molecules, signaling factors, gene-regulating reagents, or labeled tracers, depending on the research question. These materials support different kinds of analysis: some alter local signaling or gene regulation, whereas tracers help follow distribution or identify relationships between the injection site and later tissue behavior.
A typical workflow identifies the tissue and anatomical site of interest, selects an appropriate injection device, and delivers a measured volume through a fine needle or comparable system. Researchers then examine how the material is distributed, taken up, or associated with biological changes in the targeted region and surrounding tissues.
Developmental biologists can use localized injection to test how specific factors influence patterning, differentiation, regeneration, or tissue function. Comparing the treated tissue with developmental outcomes provides a way to connect a local intervention with changes in tissue formation and cell behavior, while the restricted exposure helps preserve the spatial context of the experiment.