E-cadherin-coated plates maintain pluripotent ES cells without colony formation.

E-cadherin-coated plates maintain pluripotent ES cells without colony formation.
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DOI:
10.1371/journal.pone.0000015
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发表时间:
2006-12-20
期刊:
影响因子:
3.7
通讯作者:
Akaike T
Akaike T
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Nagaoka M;Koshimizu U;Yuasa S;Hattori F;Chen H;Tanaka T;Okabe M;Fukuda K;Akaike T

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在明胶包被的平板或饲养层上培养的胚胎干细胞通过E-钙粘蛋白介导的细胞-细胞粘附形成紧密聚集的集落。在这里,我们表明,小鼠ES细胞不进行细胞间接触或形成集落培养时,板上包被的E-钙粘蛋白和IgG Fc结构域的融合蛋白。培养中的细胞保留了所有ES细胞的特征,包括分化为所有三个胚层细胞的多能性和延长培养后的种系传递。此外,它们显示出比集落形成条件更高的增殖能力、对LIF的依赖性更低以及更高的转染效率。我们的研究结果表明,聚集集落的形成可能会抑制可溶性因子的扩散,并增加细胞间的沟通,这可能会导致一个异质性的环境内和周围的细胞之间的殖民地。这种方法应该能够更有效和可扩展地培养ES细胞,这是这些细胞临床应用的重要一步。
Embryonic stem (ES) cells cultured on gelatin-coated plates or feeder layers form tight aggregated colonies by the E-cadherin-mediated cell-cell adhesions. Here we show that murine ES cells do not make cell-cell contacts or form colonies when cultured on the plate coated with a fusion protein of E-cadherin and IgG Fc domain. The cells in culture retain all ES cell features including pluripotency to differentiate into cells of all three germ layers and germ-line transmission after extended culture. Furthermore, they show a higher proliferative ability, lower dependency on LIF, and higher transfection efficiency than colony-forming conditions. Our results suggest that aggregated colony formation might inhibit diffusion of soluble factors and increase cell-cell communication, which may result in a heterogeneous environment within and between surrounding cells of the colony. This method should enable more efficient and scalable culture of ES cells, an important step towards the clinical application of these cells.
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影响因子: 64.5
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