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adipose stromal/stem cells in regenerative medicine:Potentials and limitations

World Journal of stem cells 2020年第1期12卷 1-7页

作者： Leandra Santos Baptista Multidisciplinary Center for Biological Research (Numpex-Bio) Federal University of Rio de Janeiro (UFRJ) Campus Duque de Caxias Post-graduate Program in Biotechnology National Institute of MetrologyQuality and Technology (INMETRO) Post-graduate Program in Translational Biomedicine (Biotrans) UnigranrioCampus Ⅰ Laboratory of Tissue Bioengineering Directory of Metrology Applied to Life SciencesNational Institute of MetrologyQuality and Technology(INMETRO)

This article presents the stem and progenitor cells from subcutaneous adipose tissue,briefly comparing them with their bone marrow counterparts,and discussing their potential for use in regenerative *** adipose tissue differs from other mesenchymal stromal/stem cells(MSCs)sources in that it contains a pre-adipocyte population that dwells in the adventitia of robust blood ***-adipocytes are present both in the stromal-vascular fraction(SVF;freshly isolated cells)and in the adherent fraction of adipose stromal/stem cells(ASCs;in vitro expanded cells),and have an active role on the chronic inflammation environment established in obesity,likely due their monocyticmacrophage lineage *** SVF and ASCs have been explored in cell therapy protocols with relative success,given their paracrine and immunomodulatory ***,the widely explored multipotentiality of ASCs has direct application in bone,cartilage and adipose tissue *** aim of this editorial is to reinforce the peculiarities of the stem and progenitor cells from subcutaneous adipose tissue,revealing the spheroids as a recently described biotechnological tool for cell therapy and tissue *** cell culture techniques,in particular 3D scaffold-free cultures such as spheroids,are now available to increase the potential for regeneration and differentiation of mesenchymal *** are being explored not only as a model for cell differentiation,but also as powerful 3D cell culture tools to maintain the stemness and expand the regenerative and differentiation capacities of mesenchymal cell lineages.

关键词： Mesenchymal stromal/stem cells Subcutaneous adipose tissue stromalvascular fraction adipose stromal/stem cells Regenerative medicine Cell therapy Tissue engineering Spheroids

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Cartilage and bone tissue engineering using adipose stromal/stem cells spheroids as building blocks

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World Journal of stem cells 2020年第2期12卷 110-122页

作者： Gabriela S Kronemberger Renata Akemi Morais Matsui Guilherme de Almeida Santos de Castro e Miranda JoséMauro Granjeiro Leandra Santos Baptista Bioengineering Directory of Metrology Applied to Life SciencesNational Institute of MetrologyQuality and Technology(INMETRO)Duque de CaxiasRJ 25250-020Brazil Post-graduate Program in Translational Biomedicine(Biotrans) UnigranrioCampus IDuque de CaxiasRJ 25250-020Brazil Post-graduate Program in Biotechnology National Institute of MetrologyQuality and Technology(INMETRO)Duque de CaxiasRJ 25250-020Brazil Federal University of Rio de Janeiro(UFRJ) Campus Duque de CaxiasDuque de CaxiasRJ 25250-020Brazil Laboratory of Clinical Research in Odontology Fluminense Federal University(UFF)Niterói 25255-030 Brazil Multidisciplinary Center for Biological Research(Numpex-Bio) Federal University of Rio de Janeiro(UFRJ)Campus Duque de CaxiasDuque de CaxiasRJ 25245-390Brazil

Scaffold-free techniques in the developmental tissue engineering area are designed to mimic in vivo embryonic processes with the aim of biofabricating,in vitro,tissues with more authentic *** clusters called spheroids are the basis for scaffold-free tissue *** this review,we explore the use of spheroids from adult mesenchymal stem/stromal cells as a model in the developmental engineering area in order to mimic the developmental stages of cartilage and bone *** from adult mesenchymal stromal/stem cells lineages recapitulate crucial events in bone and cartilage formation during embryogenesis,and are capable of spontaneously fusing to other spheroids,making them ideal building blocks for bone and cartilage tissue ***,we discuss data from ours and other labs on the use of adipose stromal/stem cell spheroids in chondrogenesis and osteogenesis in ***,recent studies support the notion that spheroids are ideal"building blocks"for tissue engineering by“bottom-up”approaches,which are based on tissue assembly by advanced techniques such as three-dimensional *** studies on the cellular and molecular mechanisms that orchestrate spheroid fusion are now crucial to support continued development of bottom-up tissue engineering approaches such as three-dimensional bioprinting.

关键词： adipose stromal/stem cells Spheroids Building-blocks Bottom-up Developmental tissue engineering Cartilage and bone

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