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Related Concept Videos

Stem Cell Culture01:17

Stem Cell Culture

Stem cell research aims to find ways to use stem cells to regenerate and repair cellular damage. Over time, most adult cells undergo the wear and tear of aging and lose their ability to divide and repair themselves. Stem cells do not display a particular morphology or function. Adult stem cells, which exist as a small subset of cells in most tissues, keep dividing and can differentiate into a number of specialized cells generally formed by that tissue. These cells enable the body to renew and...
Stem Cell Therapy for Tissue Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

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
The two main cell types that...
Multipotency of Hematopoietic Stem Cells01:19

Multipotency of Hematopoietic Stem Cells

The hematopoietic stem cells or HSCs are multipotent, meaning they can differentiate and give rise to all blood and immune cells. HSCs are maintained in the quiescent stage until an external stimulus initiates their differentiation. The multipotent HSCs exist as two heterogeneous populations, long-term repopulating cells (LTRC) and short-term repopulating cells (STRC). The two HSC populations have different surface markers or receptors and are classified based on quiescence and long-term...
Source And Potency Of Stem Cells01:27

Source And Potency Of Stem Cells

Stem cells are undifferentiated cells with extensive self-renewal properties that help them maintain their population during the fetal and adult stages of life. They can specialize in all cell types of the human body. However, their differential potential may vary and can be classified into five types. Stem cells can be (1) Totipotent, (2) Pluripotent, (3) Multipotent, (4) Oligopotent, and (5) Unipotent. Each stem cell has a specific origin; the fertilized egg or zygote is a totipotent cell and...
Lineage Commitment01:21

Lineage Commitment

Commitment is the  process whereby stem cells:
Embryonic Stem Cells00:57

Embryonic Stem Cells

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.
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...

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Assessing Stem Cell DNA Integrity for Cardiac Cell Therapy
10:16

Assessing Stem Cell DNA Integrity for Cardiac Cell Therapy

Published on: January 25, 2019

Cardiac stem cell therapy: stemness or commitment?

Ashish Mehta1, Winston Shim

  • 1Research and Development Unit, National Heart Centre Singapore, Singapore.

Cell Transplantation
|September 5, 2012
PubMed
Summary
This summary is machine-generated.

Cardiac stem cell therapy shows promise for heart failure, but current approaches need improvement. Pre-priming stem cells for cardiac fate may enhance myocyte replacement and functional recovery in cardiomyopathies.

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Area of Science:

  • Regenerative Medicine
  • Cardiovascular Research
  • Stem Cell Biology

Background:

  • Congestive heart failure (CHF) treatment remains a challenge, with cardiac stem cell therapy offering potential for myocardial regeneration.
  • Current cell therapy trials for cardiac regeneration highlight limitations in achieving desired outcomes, particularly regarding stem cell choice.
  • Adult bone marrow stem cells' role in direct myocyte regeneration is debated, shifting towards paracrine effects on endogenous repair.

Purpose of the Study:

  • To review the necessity of pre-priming stem cells towards a cardiac fate before transplantation.
  • To evaluate if differentiated stem cells offer advantages over undifferentiated stem cells for cardiac repair.
  • To compare the differentiation potential of various stem cells into cardiac progenitors/cardiomyocytes for targeted recovery.

Main Methods:

  • Literature review of clinical trials and preclinical studies on cardiac stem cell therapy.
  • Exploration of stem cell differentiation capabilities towards cardiac lineages.
  • Comparative analysis of differentiated versus undifferentiated stem cells in the context of heart failure.

Main Results:

  • Current cell therapy approaches have limitations in achieving significant myocyte replacement for functional restoration in heart failure.
  • Pre-differentiation of stem cells towards cardiac fates may be crucial for effective myocyte engraftment and functional recovery.
  • Various stem cell types exhibit differential potential for cardiac differentiation, impacting their suitability for specific clinical scenarios.

Conclusions:

  • True functional restoration in heart failure likely necessitates substantial myocyte replacement, possibly achieved through pre-differentiated cardiac stem cells.
  • Matching stem cell type and differentiation status to clinical scenarios is critical for optimizing cardiac regeneration outcomes.
  • Further research is needed to overcome current clinical challenges in cardiac cell therapy and harness the full potential of stem cells for cardiomyopathies.