Parallel Isolation and Characterization of Porcine Smooth Muscle, Endothelial and Mesenchymal Stromal Cells for Bioengineering Applications

Research Square (Research Square)(2021)

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摘要
There is significant interest in the pig as the animal model of choice for organ transplantation and the study of tissue engineering (TE) products and applications. Currently, efforts are being taken to bioengineer solid organs to reduce donor shortages for transplantation. For complex organs such as the lung, heart, and liver, the vasculature represents a fundamental feature. Thus, to generate organs with a functional vascular network, the different cells constituting the building blocks of the blood vessels should be procured. However, due to species' specificities, porcine cell isolation, expansion, and characterization are not entirely straightforward compared to human cell procurement. Here, we report the establishment of simple and suitable methods for the isolation and characterization of distinct porcine cells for bioengineering purposes.We successfully isolated, expanded and characterized porcine bone marrow-derived mesenchymal stromal (pBM-MSC), aortic smooth muscle (pASMC), and umbilical vein endothelial cells (pUVEC). We demonstrated that the three cell types showed specific immunophenotypical features. Moreover, we demonstrated that pBM-MSC could preserve their multipotency in vitro, and pUVEC were capable of maintaining their functionality in vitro.These cultured cells could be further expanded and represent a useful cellular tool for TE purposes (i.e., for recellularization approaches of vascularized organs or in vitro angiogenesis studies).
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关键词
porcine smooth muscle,mesenchymal stromal cells,smooth muscle,endothelial
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