Department of Molecular, Cell and Systems Biology, University of California, Riverside, California, USA.
Stem Cells Transl Med. 2021 Sep;10(9):1343-1359. doi: 10.1002/sctm.15-0352. Epub 2021 Jun 5.
StemCellQC is a video bioinformatics software tool for the quantitative analysis of human pluripotent stem cell (hPSC) colonies. Our objective was to use StemCellQC to evaluate and compare various experimental culture conditions, cell lines, and treatments and to demonstrate its applicability to PSC problems. Seven key features were identified that provided useful information on PSC morphology, dynamic behavior, and viability. Colony attachment was better on laminin-521 than on Matrigel and Geltrex. Growth rates were similar on each matrix when data were normalized. The brightness/area ratio feature showed greater cell death in colonies grown on Matrigel and Geltrex than on laminin-521 further contributing to an overall greater yield of cells on laminin-521. Four different PSC culture media performed similarly; however, one medium produced batch-to-batch variation in colony morphology and dynamic features. Two embryonic and one induced pluripotent stem cell line showed significant differences in morphology, growth rates, motility, and death rates. Cells from the same vial that became phenotypically different in culture showed measurable differences in morphology, brightness, and motility. Likewise, differentiating and undifferentiated colonies varied in growth rate, intensity, and motility. Three pluripotent cell lines treated with a low concentration of cinnamaldehyde, a chemical used in consumer products, showed adverse effects and differed in their sensitivity to treatment. Our data demonstrate various applications of StemCellQC which could be used in basic and translational research, toxicological and drug testing, and clinical facilities engaged in stem cell therapy.
StemCellQC 是一款视频生物信息学软件工具,用于对人类多能干细胞(hPSC)集落进行定量分析。我们的目标是使用 StemCellQC 来评估和比较各种实验培养条件、细胞系和处理方法,并展示其在 PSC 问题上的适用性。确定了七个关键特征,这些特征提供了有关 PSC 形态、动态行为和活力的有用信息。与 Matrigel 和 Geltrex 相比,层粘连蛋白-521 上的集落附着更好。数据归一化后,每种基质上的生长速率相似。亮度/面积比特征显示在 Matrigel 和 Geltrex 上生长的集落中细胞死亡更多,这进一步导致在层粘连蛋白-521 上细胞产量总体上更高。四种不同的 PSC 培养基表现相似;然而,一种培养基在集落形态和动态特征方面产生了批次间的变化。两种胚胎和一种诱导多能干细胞系在形态、生长速率、运动性和死亡率方面表现出显著差异。在培养过程中表型不同的同一瓶细胞显示出在形态、亮度和运动性方面的可测量差异。同样,分化和未分化的集落在生长速率、强度和运动性方面也存在差异。三种多能细胞系用低浓度肉桂醛(一种用于消费产品的化学物质)处理,显示出不良反应,并且对处理的敏感性不同。我们的数据展示了 StemCellQC 的各种应用,可用于基础和转化研究、毒理学和药物测试以及从事干细胞治疗的临床设施。