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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.
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Tissue engineering red blood cells: a therapeutic.

Theun van Veen1, John A Hunt1

  • 1Clinical Engineering, Institute of Ageing and Chronic Disease, University of Liverpool, UK.

Journal of Tissue Engineering and Regenerative Medicine
|April 23, 2014
PubMed
Summary

Researchers are developing alternatives to red blood cell (RBC) transfusions using stem cells and hemoglobin-based oxygen carriers. Tissue engineering shows promise for future blood substitutes to address transfusion limitations.

Keywords:
bioreactorblood transfusionerythrocyteshaematopoietic stem celloxygen carriers

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Area of Science:

  • Biomedical Engineering
  • Hematology
  • Regenerative Medicine

Background:

  • Blood transfusions using red blood cells (RBCs) are a cornerstone of modern medicine.
  • Limitations in donated blood supply necessitate the development of alternatives.
  • Existing treatments heavily depend on the availability of donated blood.

Purpose of the Study:

  • To review the development of alternatives for blood transfusion.
  • To emphasize tissue-engineering approaches for creating blood substitutes.
  • To highlight progress and challenges in RBC alternatives.

Main Methods:

  • Review of stem cell-based in vitro RBC production.
  • Investigation of hemoglobin (Hb)-based oxygen carriers (HBOCs).
  • Focus on tissue-engineering strategies for blood substitutes.

Main Results:

  • Stem cells can produce RBCs in vitro, with successful human clinical trials demonstrating progress.
  • Acellular blood substitutes, including chemically defined molecules and crosslinked proteins, show in vivo oxygen transport function.
  • Significant advancements have been made, but challenges remain for market-ready products.

Conclusions:

  • Tissue engineering offers a promising avenue for developing RBC alternatives.
  • Stem cell-derived RBCs and HBOCs represent key areas of research.
  • Overcoming challenges in scale-up and product suitability is crucial for clinical application.