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Related Experiment Videos

Blood substitutes: how close to a solution?

Harvey G Klein1

  • 1The Johns Hopkins School of Medicine, Baltimore, Maryland, USA.

Oncology (Williston Park, N.Y.)
|October 17, 2002
PubMed
Summary
This summary is machine-generated.

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Red cell substitutes aim to deliver oxygen without compatibility issues or side effects. While promising for specific cancer treatments, their long-term effects and optimal use require further understanding.

Area of Science:

  • Biomedical Engineering
  • Pharmacology
  • Oncology

Background:

  • The term "blood substitute" is often inaccurately used for "red cell substitute."
  • Ideal red cell substitutes offer oxygen delivery, require no compatibility testing, have few side effects, long storage life, circulation persistence, and reasonable cost.
  • Current early-generation red cell substitutes are nearing licensure for limited uses.

Purpose of the Study:

  • To review the development and potential applications of red cell substitutes.
  • To highlight the physiological consequences of oxygen delivery by small molecules.
  • To explore the role of red cell substitutes in cancer patient management.

Main Methods:

  • Review of current research and development in red cell substitute technologies.

Related Experiment Videos

  • Analysis of clinical trial data for hemoglobin-derived and perfluorochemical-based oxygen carriers.
  • Discussion of the physiological impacts and adverse reaction profiles of various formulations.

    • Main Results:

    • Hemoglobin-derived substitutes (human, bovine, recombinant) and perfluorochemicals are in development.
    • The physiological consequences of oxygen delivery by small molecules are not fully understood.
    • Current phase II trial substitutes have short circulation times (hours).

    Conclusions:

    • Early-generation red cell substitutes may not replace transfusions for chronic anemia but show potential in cancer surgery, radiation therapy, and managing cancer-related vascular occlusive syndromes.
    • Further research is needed to understand the physiological effects and optimize the use of red cell substitutes.
    • Red cell substitutes offer therapeutic opportunities for cancer patients, despite current limitations.