Allograft Survival Model
Allograft Survival Model - Related Videos
02:19
Modeling Aeromonas Pathogenesis in C. elegans Using a Survival Assay
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2026
Source: Chen, Y., et al. Evaluating Virulence and Pathogenesis of Aeromonas Infection in a Caenorhabditis elegans Model. J. Vis. Exp. (2018)This video demonstrates a survival assay using C. elegans to model Aeromonas pathogenesis, where oral ingestion of the bacteria leads to intestinal infection and mortality, enabling quantitative assessment of bacterial virulence in a live host system.
07:57
An Experimental Human DIEP Flap Model to Investigate Preservation Strategies for Vascularized Composite Allografts and Free Flaps
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2025
This protocol describes the surgical technique for harvesting a human perforator flap model based on the deep inferior epigastric artery pedicle, intended for experimental research.
16:15
Mouse Kidney Transplantation: Models of Allograft Rejection
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Cited by 17 •
2014
Here, we present a protocol to study the immunology of rejection. The surgical model presented reports a short operating time and a concise technique. Depending on the donor-recipient strain combination, the transplanted kidney may develop acute cellular rejection or chronic allograft damage, defined by interstitial fibrosis and tubular atrophy.
09:14
Surgical Approach to Full Soft Tissue Face Allograft Procurement for Vascularized Composite Allotransplantation
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2025
This protocol details the surgical technique used to harvest and prepare a full-face allograft for transplantation in patients with severe facial disfigurements, focusing primarily on soft tissue procurement with limited bony harvest restricted to the nasal framework.
09:07
An Optic Nerve Crush Injury Murine Model to Study Retinal Ganglion Cell Survival
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Cited by 64 •
2011
This protocol shows how to retrogradely label retinal ganglion cells, and how to subsequently make an optic nerve crush injury in order to analyze retinal ganglion cell survival and apoptosis. It is an experimental disease model for different types of optic neuropathy, including glaucoma.
FAQs
Rejection begins when recipient immune cells recognize antigens on transplanted tissue as different from those of the recipient. This recognition can initiate inflammatory responses that impair or destroy the graft. Tracking these immune consequences helps investigators connect donor-recipient biological differences with changes in graft function and survival, providing a framework for studying alloimmunity.
Graft survival alone indicates how long the transplant remains present, whereas graft function shows whether it continues working effectively during that period. Researchers may also assess appearance as an additional indicator of graft status. Considering these measures together gives a more informative picture of transplant outcome and helps distinguish continued function from simple persistence.
The model provides a direct outcome for comparing destructive immune responses with long-term graft acceptance. Declining function, unfavorable appearance, or shorter survival can indicate rejection-related injury, while sustained function and survival are consistent with acceptance. This comparison allows researchers to investigate the conditions and mechanisms that promote tolerance without treating graft presence alone as successful transplantation.
The main outcomes are the duration of graft survival, functional status, and observable graft appearance over time. Survival supplies a time-based endpoint, while function and appearance add evidence about the transplant’s condition during the observation period. Interpreting these measures together can reveal whether an intervention is associated with delayed injury, preserved activity, or longer-term acceptance.
A typical study selects donor tissue and a recipient from genetically different members of the same species, performs the transplantation, and follows the graft over time. Investigators then record graft function, appearance, or survival as study outcomes. This workflow links the transplant procedure to measurable evidence of rejection, tolerance, or treatment-associated changes in graft persistence.
Researchers can compare graft outcomes under different immunosuppressive conditions by monitoring function, appearance, and survival after transplantation. A therapy that preserves graft activity or extends survival may indicate reduced immune-mediated injury. These experiments help evaluate treatment effects while also revealing whether a strategy supports only temporary protection or conditions associated with longer-term graft acceptance.
It connects immune recognition of donor tissue with clinically relevant transplant outcomes, including rejection and sustained graft acceptance. By testing therapies and examining factors that influence long-term survival, investigators can identify approaches aimed at controlling alloimmunity. The resulting evidence supports efforts to develop safer transplantation strategies rather than relying solely on observations from established clinical procedures.