Sipkins said it appears the cancer overproduces a normally expressed molecule called a stem cell factor, which entices normal stem cells into the cancer niche.

斯普金思说，看来癌细胞大量产生一种以正常方式传送的分子，名为干细胞因子，这种分子会引诱正常干细胞到癌细胞的处所。

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These cells are termed cancer stem cells because, like normal stem cells, they possess the ability to self-renew and make differentiated progeny.

它们之所以像正常干细胞一样被冠以此名，是因为它们具有自我更新和形成分化子代的能力。

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These cancer stem cells share many characteristics with normal stem cells, including self-renewal and differentiation.

这些癌症干细胞与正常的干细胞有许多共同的特点，包括自我更新和分化。

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The doctor also says researchers could be able to limit the number of cells that can form tumors if they limit the number of normal stem cells.

VOA: special.2010.06.01

Since the protein needed to transform 5-fluorocytosine could only be churned out by souped-up stem cells, only the gliomas were exposed to the poison, killing them but sparing normal tissue, which the stem cells ignored.

ECONOMIST: Cancer treatment

He has found that stem cells, harvested from the brains of normal rats and injected into those suffering from brain cancer, will home in on gliomas within days of their introduction.

ECONOMIST: Cancer treatment