目的探讨大肠癌患者外周血循环癌细胞端粒酶活性的变化与临床意义。

Objective To investigate telomerase activity in circulating tumor cells of patients with colorectal carcinoma.

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一些变异的细胞快速生长，另一些则刺激附近的血管生长出新的毛细血管，其它的则使癌细胞进入血循环并生成新的肿瘤。

Some mutations spur rapid growth; others prod nearby blood vessels into sprouting new capillaries; still others send cancer cells out into the bloodstream, where they can seed new tumors.

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目的用磁激活细胞分选技术富集并定量分析结直肠癌患者外周血循环中的癌细胞。

ObjectiveTo enrich and quantitatively analyze peripheral circulative carcinoma cells by magnetic activated cell sorting (MACS) in colorectal cancer patients.

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