期刊
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
卷 71, 期 12, 页码 2985-2991出版社
TAYLOR & FRANCIS LTD
DOI: 10.1271/bbb.70384
关键词
embryoid body; multi-well chip; hanging drop; differentiation
A multi-well chip (MWC) is described by which mouse embryonic carcinoma (EC) stem cells form a comparatively more rapid and uniform embryoid body (EB) over the conventional hanging drop (HD) method. The newly developed MWC consists of an array of extruded through-holes, each of which holds a droplet of the cell suspension. The study found that the small curvature radius of the droplet in the MWC improved the EB formation rate of a hanging drop from 70% to 98%. Furthermore, the EBs formed by the MWC were uniformly round in shape regardless of the number of suspended cells ranging from 0.5 x 10(3) to 20 x 10(3). The ratio of beating colonies from the MWC was over 2-fold larger than that from HD. The experiments demonstrate that the MWC will be a valuable experimental tool for robust and reproducible EB-based differentiation of a defined number of ES cells.
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