Rat-tail Collagen I
Rat-tail Collagen I - Related Videos
07:11
Sampling Blood from the Lateral Tail Vein of the Rat
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Cited by 99 •
2015
Blood samples are useful for assessing biomarkers of physiological states or disease in vivo. Here we describe the methodology to sample blood from the lateral tail vein in the rat. This method provides rapid samples with minimal pain and invasiveness.
15:12
Preparation of Rat Tail Tendons for Biomechanical and Mechanobiological Studies
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Cited by 21 •
2010
This article describes the experimental procedures used to prepare rat tail tendons for biomechanical and mechanobiological studies. Several features of the main steps in preparation are demonstrated, beginning with extraction, cross-sectional area measurement, rinsing and loading into the bioreactor chamber.
05:12
Repeated Blood Collection from Tail Vein of Non-Anesthetized Rats with a Vacuum Blood Collection System
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Cited by 28 •
2017
Here, we describe a simple tail vein blood sampling method in non-anesthetized rats using a vacuum extraction tube system. This method reduces the risk of direct exposure to blood and simplifies taking multiple samples from a single venipuncture.
07:25
Collagen Hydrogels
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2023
Collagen is another widely used biomaterial that has found popularity in commercial applications, such as photography. Collagen has more recently been used in tissue engineering applications, by creating hydrogels that provide structure to engineered tissue. This video introduces collagen as a biomaterial, demonstrates how it is harvested from porcine skin, and shows how the material is used to create a hydrogel for tissue engineering applications. Finally, several applications of the material...
10:17
The Tail Suspension Test
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Cited by 527 •
2012
The tail-suspension test is validated as an experimental procedure to assess antidepressant efficacy of drug treatments in mice. Mice are suspended by their tails for six minutes and escape-related behaviors are assessed. We describe procedures used in conducting the tail suspension test.
FAQs
At neutral pH and physiological temperature, triple-helical collagen molecules assemble into fibrils. Those fibrils create a hydrated gel rather than a simple soluble protein environment, giving cultured cells a structured extracellular matrix to contact. This organization enables researchers to examine adhesion, migration, and invasion within a tissue-like model.
Changing collagen concentration provides a way to adjust matrix stiffness, allowing investigators to examine how mechanical conditions influence cancer-cell behavior. Because the scaffold can be prepared with different physical properties, experiments can connect extracellular matrix mechanics with differences in tumor-cell adhesion, migration, or invasion, rather than treating these behaviors as purely cell-intrinsic.
Rat-tail Collagen I supports communication between tumor cells and stromal cells in a three-dimensional setting. The matrix supplies a shared extracellular environment in which researchers can study how its structure affects cellular interactions and cancer progression. This is particularly useful when the experimental question concerns the tumor microenvironment, rather than isolated tumor-cell behavior alone.
A basic preparation relies on purified collagen, neutral pH, physiological temperature, and a selected concentration. Under these conditions, triple-helical molecules assemble into fibrils and form a hydrated gel. Researchers can vary concentration and stiffness to create tissue-like environments suited to the cellular behavior or microenvironmental question being tested.
Cells can be studied within collagen-based three-dimensional culture systems, where the gel supplies a structured extracellular environment rather than a flat growth surface. This setup supports analysis of tumor-cell adhesion, migration, and invasion under adjustable matrix conditions. It therefore helps researchers connect cellular behavior with the physical organization of the surrounding cancer microenvironment.
In organoid models, collagen provides a biologically relevant, adjustable matrix in which tissue-like cellular organization can be examined. Researchers can use differences in concentration and stiffness to investigate how extracellular matrix properties influence tumor-related behavior. This extends collagen-based studies beyond individual cells toward models that better represent multicellular cancer environments.
Collagen matrices provide a controlled extracellular environment for testing treatments intended to limit cancer-cell invasion. By adjusting matrix properties and observing invasion-related behavior within the gel, researchers can examine therapy performance under tissue-like conditions. The approach links treatment effects to the extracellular matrix context, which is central to understanding tumor progression.