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Related Concept Videos

Stem Cell Therapy for Tissue Regeneration01:21

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Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
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Related Experiment Video

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Tissue Engineering: Construction of a Multicellular 3D Scaffold for the Delivery of Layered Cell Sheets
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Methods to generate tissue-derived constructs for regenerative medicine applications.

Joao Paulo Zambon1, Anthony Atala1, James J Yoo1

  • 1Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA.

Methods (San Diego, Calif.)
|October 14, 2019
PubMed
Summary

Tissue engineering offers solutions for organ failure using decellularized scaffolds. This review covers decellularization methods, agents, and cell sources for creating functional bioengineered organs.

Keywords:
Cell sourceDecellularizationRecellularizationTissue-derived constructsTransplantation

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Area of Science:

  • Regenerative Medicine
  • Tissue Engineering
  • Biomaterials Science

Background:

  • Persistent shortage of donor organs for transplantation leads to unmet clinical needs in end-stage organ failure.
  • Tissue engineering and regenerative medicine are developing advanced therapies to address organ scarcity.
  • Decellularized tissue scaffolds offer a promising strategy for creating complex tissue constructs that retain native architecture.

Purpose of the Study:

  • To provide a comprehensive overview of decellularization techniques for tissue engineering.
  • To discuss various decellularizing agents and their mechanisms of action.
  • To explore potential cell sources for repopulating decellularized scaffolds to restore organ function.

Main Methods:

  • Review of established decellularization protocols for different tissue types.
  • Analysis of chemical, physical, and biological agents used for cell removal.
  • Evaluation of cell sourcing strategies, including stem cells and primary cells.

Main Results:

  • Decellularization is a clinically validated process for generating tissue scaffolds.
  • Optimization of decellularization methods and agent selection is crucial for preserving scaffold integrity and bioactivity.
  • Successful repopulation with appropriate cell types is essential for achieving functional bioengineered organs.

Conclusions:

  • Understanding decellularization mechanisms and processing is key to advancing bioengineered organ development.
  • This review highlights critical factors for optimizing scaffold preparation and cell integration for future clinical applications.
  • Further research into cell sourcing and functionalization is needed to overcome challenges in solid organ bioengineering.