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Related Concept Videos

Tissue Transplantation01:24

Tissue Transplantation

Tissue transplantation is a significant medical procedure involving the transfer of cells, tissues, or organs from a donor to a recipient, with the primary aim of restoring lost functions. This procedure is crucial in treating a broad spectrum of diseases, including kidney diseases, liver failure, heart disease, and certain types of cancers.
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
Bone Marrow Sampling and Transplants01:22

Bone Marrow Sampling and Transplants

Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy the...
Kidney Transplant II: Surgical Procedure01:26

Kidney Transplant II: Surgical Procedure

Preoperative ManagementThe primary goals of preoperative management in kidney transplantation are to optimize the patient’s metabolic state and prepare them for surgery through diet adjustments, necessary dialysis, and tailored medical treatment. This phase also involves comprehensive infection screening and patient education about the surgical procedure and postoperative care to improve outcomes and adherence.Medical ManagementA comprehensive evaluation is required for both the living donor...
Kidney Transplant I: Introduction01:28

Kidney Transplant I: Introduction

A kidney transplant is a surgical approach that involves replacing a non-functioning kidney with a healthy one from a donor. This procedure is often a treatment option for end-stage renal disease (ESRD) patients. The method requires careful recipient selection, including evaluating various medical and psychosocial factors. These criteria vary between transplant centers but generally include assessments of the patient's overall health, adherence to medical recommendations, and lifestyle...

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Related Experiment Video

Updated: Jun 4, 2026

Vascularized Composite Upper Limb Allograft Harvesting for Proximal Arm Allotransplantation
08:11

Vascularized Composite Upper Limb Allograft Harvesting for Proximal Arm Allotransplantation

Published on: June 13, 2025

Hand allotransplantation.

Gerald Brandacher1, Vijay S Gorantla, W P Andrew Lee

  • 1Divison of Plastic and Reconstructive Surgery, Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.

Seminars in Plastic Surgery
|February 3, 2011
PubMed
Summary
This summary is machine-generated.

Composite tissue allotransplantation (CTA) shows promise, but immunosuppression poses risks. New therapies integrating immune regulation and nerve regeneration could improve outcomes and reduce complications in reconstructive transplantation.

Keywords:
Transplantationcomposite tissuehandimmunosuppressionnerve regeneration

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Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach

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Last Updated: Jun 4, 2026

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Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach
10:36

Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach

Published on: May 23, 2025

Area of Science:

  • Transplantation immunology
  • Regenerative medicine
  • Reconstructive surgery

Background:

  • Over 100 composite tissue allotransplantation (CTA) procedures, including hand and facial transplants, have been performed globally with positive graft survival and functional results.
  • The widespread use of CTA is limited by the necessity for long-term, high-dose immunosuppression to prevent rejection, particularly due to the skin's immunogenicity.
  • Immunosuppressive drug toxicity can lead to severe adverse events like infections, metabolic complications, and malignancy.

Purpose of the Study:

  • To explore novel strategies for minimizing immunosuppression in CTA.
  • To enhance functional outcomes by promoting nerve regeneration alongside graft acceptance.
  • To facilitate broader clinical application of CTA for complex reconstructive needs.

Main Methods:

  • Review of current literature on CTA outcomes and challenges.
  • Investigation of emerging cellular and biologic therapies.
  • Analysis of strategies integrating immune regulation with nerve regeneration.

Main Results:

  • Encouraging graft survival and functional outcomes have been observed in CTA procedures.
  • Novel strategies in animal models show potential for combined immune modulation and nerve regeneration.
  • These approaches may reduce reliance on high-dose immunosuppression.

Conclusions:

  • Integrating immune regulation with nerve regeneration offers a promising path to minimize immunosuppression in CTA.
  • Optimizing functional outcomes through enhanced nerve regeneration is crucial for CTA success.
  • Successful clinical translation could expand reconstructive transplantation options for patients with severe deformities or injuries.