Abstract
Objective: The present study aimed to obtain the required cells and select a suitable scaffold material for constructing an artificial bladder using the tissue engineering approach. 
 Materials and methods: The convenience of obtaining human adipose tissue-derived stem cells (hADMSCs) was used in this study. It was attempted to differentiate these cells into smooth muscle cells (SMC), which are present along the wall of the bladder. Urothelial cells were enzymatically isolated from tissue biopsies. Synthetic (poly-lactide co-glycolic acid, PLGA) and natural (chitosan) polymers were used in scaffold fabrication using a tissue engineering approach.
 Results: In the cellular experiments, urothelial cells couldn’t be cultured in polystyrene culture vessels in vitro and required a support material to maintain viability. Better results were obtained with the feeder layer. The hADMSCs exhibited the expected morphological changes in the serum-rich medium content in the SMC differentiation experiments. Chitosan, biocompatible and biodegradable, was mixed with PLGA as an alternative scaffold combination.
 Conclusion: This study indicated that hADMSCs-derived smooth muscle cells and biopsy-isolated urothelial cells cultured on hybrid chitosan–PLGA scaffolds with appropriate physical properties could serve as a suitable model for tissue-engineered artificial bladder construction.
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