Abstract
Objective: To construct tissue engineered-epithelial patches with human adipose-derived mesenchymal stem cells (hADSC) and extracellular matrix scaffold (ECM), and to observe their morphological characteristics and biological behaviors. Methods: The cultured and purified hADSC were co-cultured with the ECM. The adhesion of hADSC formed sheet on the ECM were observed by the scanning electron microscopy. The activity and apoptosis of hADSC cultured on the ECM were observed by laser scanning confocal microscope. The autocrine function of hADSC were determined by qPCR(hepatoeyte growth factor, transforming growth factor-β, epidermal growth factor). Results: hADSC proliferated actively when cultured on the ECM. The scanning electron microscopy demonstrated that the bottom of the ECM possessed smooth, with uneven thickness, widely interconnected collagen bundles. Meanwhile, it showed that hADSC had good adhesion with ECM surface and grew overlapped. The immunofluorescence revealed that hADSC proliferated stably, did not appear a large number of apoptosis when cultured on the ECM. qPCR results indicated that the autocrine function of hADSC cultured on the ECM were significantly higher than those in non-scaffold group(P<0.05). Conclusion: hADSC has good biocompatibility with ECM scaffold. hADSC grows well in the environment of ECM and has active secretion function.
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More From: Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery
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