Matrigel Plug Assay
Matrigel Plug Assay - Related Videos
03:50
From MEFs to Matrigel 3: Passaging hESCs from Matrigel onto Matrigel
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Cited by 3 •
2008
This video demonstrates how to maintain the growth of human embryonic stem cells (hESCs) in feeder cell-free conditions and how to continuously passage hESCs in feeder cell-free conditions. Confirmation of hESC pluripotency grown in feeder cell-free conditions by immunofluorescence microscopy is also demonstrated. Part 3 of 3.
06:40
From MEFs to Matrigel 2: Splitting hESCs from MEFs onto Matrigel
0 Views •
Cited by 4 •
2008
This video demonstrates how to maintain the growth of human embryonic stem cells (hESCs) in feeder cell-free conditions and how to continuously passage hESCs in feeder cell-free conditions. Confirmation of hESC pluripotency grown in feeder cell-free conditions by immunofluorescence microscopy is also demonstrated. Part 2 of 3.
04:00
A Matrigel-Based Tube Formation Assay to Assess the Vasculogenic Activity of Tumor Cells
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Cited by 121 •
2011
A tube formation assay is used to evaluate vascular activity of tumor cells.
08:16
In Vivo Study of Human Endothelial-Pericyte Interaction Using the Matrix Gel Plug Assay in Mouse
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Cited by 11 •
2016
We present a protocol to study human endothelial-pericyte interactions in mouse using a variation of the matrix gel plug angiogenesis assay.
01:22
Formation of the Platelet Plug
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2024
The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss. As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
FAQs
These additions establish the biological conditions being tested within the extracellular-matrix plug. Growth factors or cytokines can support proangiogenic signaling, whereas test compounds may reveal antiangiogenic activity. Added cells can help examine how cellular signals affect endothelial invasion and vascular structure formation, allowing investigators to connect a treatment or stimulus with a vascularization outcome.
Matrigel creates a defined basement-membrane-like environment beneath the skin, separating the experimental matrix from the surrounding tissue. Endothelial cells that enter the plug can form vascular structures in response to its contents. This controlled setting helps investigators examine angiogenic activity while limiting the experiment to a recoverable, supplemented matrix.
Vascular structures indicate that endothelial cells have invaded the matrix and organized in response to the experimental conditions. Their presence can reflect proangiogenic activity, while reduced vascularization can support evaluation of an antiangiogenic effect. The assay therefore links cellular behavior within the plug to mechanisms that regulate new blood-vessel formation.
The assay provides a controlled extracellular-matrix environment in an animal, allowing vascular responses to be examined after defined substances or cells are incorporated into the plug. More complex animal models can capture broader biological interactions, while the plug assay offers a focused approach for studying angiogenesis and comparing proangiogenic or antiangiogenic conditions.
Investigators first supplement liquid Matrigel with the selected growth factors, cytokines, cells, or test compounds. They then inject the material beneath the skin, where it solidifies into a plug. After a defined incubation period, the plug is recovered and analyzed for vascularization through hemoglobin measurement, vessel staining, or microscopic examination.
Hemoglobin content provides an assessment associated with blood accumulation in the vascularized plug, while vessel staining reveals vascular structures within the recovered matrix. Microscopic analysis supplies visual information about those structures. Using these readouts, investigators can evaluate the extent and appearance of vascularization rather than relying on the injected treatment alone.
The method supports investigations of proangiogenic and antiangiogenic mechanisms, including studies related to cancer biology and wound repair. It can also be used for therapeutic screening by testing compounds within the matrix before or alongside more complex animal models. Its value lies in connecting experimental treatments with measurable vascularization in vivo.