Human mesenchymal stem cell (hMSC) differentiation towards cardiac cells using a new microbioanalytical method

The Analyst
Patrycja SokolowskaElzbieta Jastrzebska

Abstract

Stem cells (SCs) are more and more often applied in tissue engineering and cell therapies, e.g. in regenerative medicine. Standard methods of SC differentiation are time consuming and ineffective. Therefore, new bioanalytical methods (i.e. Lab-on-a-Chip systems) are develop to improve such type of studies. Although, microtechnology is a rapidly growing research area, there are so far not too many works which present SC differentiation into cardiomyocytes in the microsystems. Therefore, we present new microbioanalytical method of SC differentiation towards cardiac cells using a newly developed digitally controlled microdispenser integrated with a Heart-on-a-chip system. Seven-day culture of human mesenchymal stem cells (hMSCs) and their differentiation using biochemical factors such as 5-AZA (2 μM, 24 h) and VEGF (20 ng ml-1, 72 h) were investigated in the microsystem which was automatically operated using smartphone software. hMSC differentiation into the cardiac cells was confirmed using immunostaining of cardiac markers (α-actinin and troponin T). The usage of the microsystem allowed shortening the time of hMSC differentiation in comparison to macroscale method. We showed that the microsystem, in which the in vivo microenviro...Continue Reading

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Methods Mentioned

BETA
chip
Fluorescence

Software Mentioned

cellSens Dimension
ImageJ
OLYMPUS
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