The biological behavior changes of the cells were observed by colony formation assay.
克隆形成实验观察细胞生物学性状的变化。
Cell survival curves were determined by colony formation method to evaluate changes of radiosensitivity of the cells.
集落形成法检测细胞存活曲线，反映放射敏感性变化；
Their in vitro antitumor activity against human cancer cell lines were evaluated by MTT assay and colony formation assay.
它们的体外抗肿瘤活性通过MTT法和集落形成法进行了评价。
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