期刊
CYTOTHERAPY
卷 13, 期 8, 页码 903-912出版社
ELSEVIER SCI LTD
DOI: 10.3109/14653249.2011.586998
关键词
mesenchymal stromal cells; niche; spheroids; three-dimensional growth
Mesenchymal stromal cells (MSC) can be isolated from adult tissues and induced to differentiate into skeletal cells, such as osteoblasts, chondrocytes and adipocytes. Consequently, ex vivo MSC are valuable systems for studying the mechanisms that control tissue-context lineage commitment and may offer broad therapeutic applications in the orthopedic theater and beyond. To date, most of these studies have used MSC grown on two-dimensional (2-D) plastic surfaces. The use of three-dimensional (3-D) in vitro growth techniques for MSC may accelerate these areas of research by providing a more representative 'in vivo-like' environment, where cells interact with each other and their cellular products, rather than a plastic surface. We introduce some of the techniques used for 3-D in vitro cultures and how they relate to the MSC field. We will present evidence of how MSC grown as 3-D spheroids not only permits appropriate MSC-like behavior, but appears to promote their stem-cell attributes and therapeutic benefit in applications ranging from regenerative medicine to anti-inflammatory treatments and cancer therapy. 3-D culture techniques also allow de/reconstruction of the specialized in vivo niche of the tissue-resident stem cell where microenvironmental influences can be recognized.
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