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Fabrication of decellularized adipose tissue/alginate composite microspheres with pASCs encapsulation for tissue engineering

1 Department of Chemical Engineering, National Taiwan University, NO. 1, Sec. 4, Roosevelt Rd., Taipei 106, Taiwan
2 Department of Surgery, National Taiwan University Hospital, NO.7, Chung-Shan South Rd., Taipei 100, Taiwan

Topical Section: Cell and Tissue Engineering

Stem cells are utilized to create living and functional tissues to regenerate and repair tissue or organs in the body in cell based and regenerative treatments. It has been demonstrated that stem cell treatments can improve perfusion and stimulate neovascularization in peripheral arterial disease. However, such treatments usually suffer from some deficiencies, such as immune rejection and limited proliferation of implanted cells.In this study, we focused on the application of the decellularized adipose tissue (DAT), which is a native extracellular matrix (ECM), in cell based therapies. Biomaterials extracted from the organism itself possesses great potential as scaffold materials for stem cell culture as well as new tissue construct formation, especially if the ECM and cell are from the same source (in our case, the adipose tissue). Therefore, DAT solution (DATsol) was combined with alginate in our study to culture adipose stem cells (ASCs).We investigated the mixture of DATsol and high or low molecular weight alginate. The 2-D in vitro study of DATsol/alginate was found to promote cell adhesion and differentiation. ASCs, immobilized in DATsol/alginate microspheres, demonstrated metabolic activity which with an overall viability higher than 80%. The results suggested that the use of DATsol and alginate possesses great potential for application in cell based therapies in ischemia patients which facilitates the development of new mature and stable capillaries.
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Keywords adipose derived stem cells (ASCs); decellularize adipose tissue (DAT); alginate; microspheres

Citation: Shaoyung Chen, Hsinyi Mao, Pinhua Tu, Naichen Cheng, Jiashing Yu. Fabrication of decellularized adipose tissue/alginate composite microspheres with pASCs encapsulation for tissue engineering. AIMS Bioengineering, 2017, 4(3): 351-365. doi: 10.3934/bioeng.2017.3.351

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