Related Experiment Video
Updated: Dec 9, 2025
Assessing Stem Cell DNA Integrity for Cardiac Cell Therapy
Published on: January 25, 2019
Dormant cardiac stem cells: A promising tool in cardiac regeneration
Zenaida Ceausu1, Bogdan Socea2,3, Mihai C T Dimitriu4,5
1Pathology Department, 'Sf. Pantelimon' Emergency Clinical Hospital, 021659 Bucharest, Romania.
Abstract:
Stem cells represent an old niche with various new potential therapeutics. Besides drug treatment, reperfusion procedures and surgical revascularization, stem cell therapy could be a good option in ischemic cardiac diseases. A study was performed on a small group of cases who died of cardiac arrhythmia secondary to scarring myocardial infarctions. Tissue cardiac samples were taken from these cases (from the anterior and lateral wall of the left ventricle), for microscopy examination, in order to investigate the presence of cardiac stem cells (CSC). Multiple series of histological sections were also performed and examined, along with immunohistochemical analysis (IHC). The cells were identified in close contact with the residual ischemic cardiomyocytes, in the proximity of the myocardial collagenous scar, in old myocardial infarctions. They were activated by hypoxic ischemia and were influenced by the capillary microvascular density and the interstitial micro-environment conditions. In chronic intermittent ischemia they seem to turn themselves from dormant quiescent cells into activated progenitor committed cells.
Insights
Cardiac stem cells (CSCs) were found in scarred heart tissue from patients who died of myocardial infarctions. These cells activate in response to ischemia, showing potential for treating ischemic cardiac diseases.
Area of Science:
- Cardiology
- Stem Cell Biology
- Regenerative Medicine
Background:
- Ischemic cardiac diseases pose significant therapeutic challenges.
- Stem cell therapy is a promising avenue for cardiac repair.
- Understanding cardiac stem cell (CSC) behavior in ischemic conditions is crucial.
Purpose of the Study:
- To investigate the presence and characteristics of cardiac stem cells (CSCs) in myocardial infarction scar tissue.
- To explore the activation and environmental influences on CSCs in chronic ischemic conditions.
Main Methods:
- Microscopic examination of cardiac tissue samples from deceased patients with myocardial infarction.
- Histological sectioning and immunohistochemical analysis (IHC) to identify CSCs.
- Assessment of CSCs in relation to cardiomyocytes, scar tissue, and microvascular density.
Main Results:
- CSCs were identified in proximity to residual cardiomyocytes and collagenous scars in old myocardial infarctions.
- CSC activation was observed, influenced by hypoxic ischemia, capillary density, and micro-environment.
- In chronic intermittent ischemia, CSCs transitioned from quiescent to activated progenitor cells.
Conclusions:
- Cardiac stem cells are present in myocardial infarction scar tissue.
- Hypoxic ischemia and the local micro-environment activate CSCs.
- CSCs show potential as a therapeutic target for ischemic cardiac diseases.
Related Concept Videos
01:21Stem Cell Therapy for Tissue Regeneration
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
01:17Stem Cell Culture
01:19Multipotency of Hematopoietic Stem Cells
01:33Adult Stem Cells