Limb Bud Grafting
Limb Bud Grafting - Related Videos
11:48
Grafting of Beads into Developing Chicken Embryo Limbs to Identify Signal Transduction Pathways Affecting Gene Expression
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Cited by 2 •
2016
By grafting beads soaked in growth factors or specific inhibitors of signaling pathways into developing embryos it is possible to directly test their effects in vivo. In this protocol beads are grafted into the limb bud to determine the effects of these molecules on gene expression and signal transduction.
17:01
Acquiring Fluorescence Time-lapse Movies of Budding Yeast and Analyzing Single-cell Dynamics using GRAFTS
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Cited by 4 •
2013
We present a simple protocol to obtain fluorescence microscopy movies of growing yeast cells, and a GUI-based software package to extract single-cell time series data. The analysis includes automated lineage and division time assignment integrated with visual inspection and manual curation of tracked data.
07:17
Generation of Chimeric Axolotls with Mutant Haploid Limbs Through Embryonic Grafting
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Cited by 1 •
2020
This goal of this protocol is to produce chimeric axolotls with haploid forelimbs derived from Cas9-mutagenized donor tissue using embryonic tissue grafting techniques.
07:37
Mouse Models for Graft Arteriosclerosis
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Cited by 17 •
2013
We describe protocols for our mouse graft arteriosclerois (GA) models which involve interposition of a mouse vessel segment into a recipient of the same inbred strain. By backcrossing additional genetic changes into the vessel donor, the model can assess the effect of specific genes on GA.
07:15
Orthotopic Hind Limb Transplantation in the Mouse
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Cited by 24 •
2016
This novel model for orthotopic hind limb transplantation in the mouse, applying a non-suture cuff technique for super-microvascular anastomosis, provides a powerful tool for in vivo mechanistic immunological research related to vascularized composite allotransplantation (VCA).
FAQs
The experiment compares the behavior of transplanted limb tissue with the signals present in its new embryonic environment. If the graft maintains characteristics associated with its original position, the result supports a predetermined fate. If it changes in response to host cues, the findings indicate that local positional information can influence tissue specification and subsequent limb patterning.
Organizing regions and adjacent tissues provide positional signals that help coordinate how the limb develops. Transplantation places donor tissue in a different signaling environment, making it possible to examine whether those cues alter the graft’s behavior. This reveals how interactions among embryonic tissues contribute to pattern formation rather than treating each cell population as an isolated unit.
These experiments connect observable limb patterns with underlying processes such as cell fate determination, tissue specification, growth regulation, and positional signaling. By comparing donor tissue behavior in different host contexts, researchers can ask whether developmental outcomes reflect properties retained by the graft or instructions received after transplantation. The approach therefore links tissue interactions with genetic mechanisms shaping vertebrate limbs.
A typical workflow begins by identifying suitable donor and host embryos, followed by microsurgical removal of the developing limb bud from the donor. The tissue is then placed into the corresponding experimental site in the host embryo. Researchers subsequently observe how the transplanted cells interact with surrounding signals and document the resulting developmental pattern.
Changing the relationship between donor tissue and host surroundings allows investigators to compare intrinsic properties with environmental influence. Observations can show whether transplanted cells retain aspects of their original developmental program or respond to positional cues in the host. These outcomes provide evidence about how specification, patterning, and growth are coordinated during embryonic limb formation.
The technique provides an experimental way to examine genetic mechanisms through tissue behavior rather than observation alone. In genetics, graft outcomes can clarify how inherited developmental programs interact with signals from neighboring embryonic regions. In developmental biology, the same evidence helps explain how cells acquire identities, interpret positional information, and contribute to the organized growth of vertebrate limbs.