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Embryonic stem cells attenuate viral myocarditis in murine model
Ju-Feng Wang1, Yingke Yang, Guangwu Wang
1Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
Cell Transplantation
|February 18, 2003
Summary
Embryonic stem (ES) cells administered to mice with viral myocarditis improved survival rates and reduced cardiac damage. These findings suggest stem cells hold therapeutic potential for heart conditions caused by viral infections.
Area of Science:
- Cardiology
- Stem Cell Biology
- Virology
Background:
- Viral myocarditis is a significant cause of heart damage.
- Stem cells are being investigated for regenerative medicine applications.
Purpose of the Study:
- To investigate if embryonic stem (ES) cells can migrate to the heart and mitigate viral myocarditis.
- To evaluate the therapeutic potential of ES cells in a mouse model of viral myocarditis.
Main Methods:
- Male BALB/c mice were divided into control, encephalomyocarditis virus (EMCV) infection, and EMCV + ES cell treatment groups.
- ES cells were administered intravenously, followed by EMCV inoculation.
- Mortality, inflammatory cell infiltration, necrosis, and ES cell migration/differentiation were assessed.
Main Results:
- The survival rate in the EMCV + ES cell group (80%) was significantly higher than in the EMCV-alone group (64%).
- ES cell treatment reduced inflammatory cell infiltration and myocardial lesions.
- Immunofluorescence confirmed ES cell migration into the heart and differentiation into myocytes.
Conclusions:
- Embryonic stem cells significantly enhance survival in viral myocarditis.
- ES cells demonstrate a protective effect against viral-induced heart damage.
- Stem cell therapy shows promise for treating viral myocarditis in mammals, including humans.