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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.
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Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
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Assessing Stem Cell DNA Integrity for Cardiac Cell Therapy
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Assessing Stem Cell DNA Integrity for Cardiac Cell Therapy.

Jessica M Miller1, Nikhil Maneesh Mardhekar1, Vasanthi Rajasekaran1

  • 1Department of Biomedical Engineering, School of Engineering, School of Medicine, University of Alabama at Birmingham.

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|February 9, 2019
PubMed
Summary

Maintaining DNA integrity in stem cells is crucial for regenerative therapies. This study provides protocols to assess DNA damage before transplantation, ensuring cell efficacy and preventing adverse outcomes like cancer.

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Area of Science:

  • Regenerative Medicine
  • Molecular Biology
  • Cell Biology

Background:

  • Stem cells offer promise for treating degenerative diseases.
  • DNA integrity is essential for stem cell regenerative capacity.
  • Rapid cell expansion for transplantation can compromise DNA integrity due to metabolite accumulation.

Purpose of the Study:

  • To address the need for quality control in stem cell transplantation.
  • To provide reliable protocols for assessing DNA integrity in stem cells.
  • To ensure the suitability of stem cells for therapeutic transplantation.

Main Methods:

  • Development of step-by-step protocols.
  • Assessment of DNA integrity in stem cells.
  • Evaluation of DNA damage markers resulting from cell propagation.

Main Results:

  • Established protocols for evaluating stem cell DNA integrity.
  • Identified risks associated with transplanting DNA-damaged cells, including poor engraftment and potential for mutations.
  • Highlighted the link between accumulated metabolites and DNA damage during cell expansion.

Conclusions:

  • Assessing DNA integrity is a critical quality control step before stem cell transplantation.
  • Transplanting cells with compromised DNA can lead to therapeutic failure and disease.
  • The provided protocols facilitate the safe and effective use of stem cells in regenerative medicine.