Journal
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
Volume 484, Issue 2, Pages 225-230Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2017.01.029
Keywords
Microfluidic; Engineered heart tissue; Hydrogel; Chitosan; Perfusion; Micro-bioreactor
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Since the leading cause of death are cardiac diseases, engineered heart tissue (EHT) is one of the most appealing topics defined in tissue engineering and regenerative medicine fields. The importance of EHT is not only for heart regeneration but also for in vitro developing of cardiology. Cardiomyocytes could grow and commit more naturally in their microenvironment rather than traditional cultivation. Thus, this research tried to develop a set up on-a-chip to produce EHT based on chitosan hydrogel. Micro-bioreactor was hydrodynamically designed and simulated by COMSOL and produced via soft lithography process. Chitosan hydrogel was also prepared, adjusted, and assessed by XRD, FTIR and also its degradation rate and swelling ratio were determined. Finally, hydrogels in which mice cardiac progenitor cells (CPC) were loaded were injected into the micro-device chambers and cultured. Each EHT in every chamber was evaluated separately. Prepared EHTs showed promising results that expanded in them CPCs and work as an integrated syncytium. High cell density culture was the main accomplishment of this study. (C) 2017 Elsevier Inc. All rights reserved.
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