C-Kit Cardiac Progenitor Cell Based Cell Sheet Improves Vascularization and Attenuates Cardiac Remodeling following
K Dergilev1, Z Tsokolaeva1, P Makarevich1,2
1Laboratory of Angiogenesis, National Medical Research Center of Cardiology, Moscow, Russia.
Biomed Research International
|July 27, 2018
Summary
Cardiac progenitor cell (CPC) sheets improve heart repair after myocardial infarction. This cell sheet therapy enhances CPC engraftment, promotes heart regeneration, and reduces adverse remodeling, offering a promising therapeutic strategy.
Area of Science:
- Cardiovascular Biology
- Regenerative Medicine
- Stem Cell Therapy
Background:
- Multipotent cardiac progenitor cells (CPCs) are a potential therapy for myocardial infarction.
- Direct CPC injection shows limited efficacy due to low cell engraftment.
- Cell sheet technology offers improved cell retention for enhanced therapeutic outcomes.
Purpose of the Study:
- To investigate the efficacy of CPC-based cell sheet transplantation for myocardial infarction regeneration.
- To evaluate the survival, proliferation, and differentiation of transplanted CPCs in a cell sheet format.
- To assess the impact of CPC sheet transplantation on cardiac function and remodeling.
Main Methods:
- Culturing c-kit+ CPCs on temperature-responsive surfaces to form cell sheets.
- Characterizing cell sheet structure, including cell viability, proliferation markers, progenitor markers (Gata-4), gap junctions (connexin-43), and extracellular matrix proteins.
- Transplanting CPC cell sheets into myocardial infarction models.
- Evaluating CPC engraftment, migration, differentiation, neovascularization, cardiomyocyte proliferation, and left ventricular remodeling post-transplantation.
Main Results:
- CPCs successfully formed organized cell sheets with sustained viability, proliferation, Gata-4 expression, connexin-43+ gap junctions, and extracellular matrix production.
- Transplanted CPC sheets demonstrated engraftment, proliferation, migration, and differentiation into cardiac lineages.
- CPC sheet transplantation stimulated neovascularization and cardiomyocyte proliferation in the infarcted myocardium.
- The therapy ameliorated adverse left ventricular remodeling following myocardial infarction.
Conclusions:
- CPC-based cell sheet transplantation is a viable strategy for myocardial infarction repair.
- Cell sheet technology significantly enhances CPC retention and therapeutic potential.
- This approach promotes cardiac regeneration and improves heart function after injury.
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