Several recent studies have identified tiny populations of tumor cells that appear to act like stem cells, driving the tumor's ability to grow and spread.

近期一些研究鉴定出很少的肿瘤细胞种群，它们的行为显得像干细胞，推进肿瘤生长和扩展能力。

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Other researchers have converted skin cells directly into nerve cells, and previous studies have worked out ways to grow heart cells from embryonic-like stem cells.

另外一些研究者直接将皮肤细胞转变成神经细胞，早前的研究已经找到了由胚胎样干细胞成长为心脏细胞的方法。

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With a slight redesign, the drug might work for hundreds of diseases, fulfilling the promise that wonder cures like stem cells and gene therapy have failed to deliver.

稍作改动，药品也许对治疗数百种疾病有效，以此兑现诸如实现干细胞和基因治疗这些神奇疗法的承诺。

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The stem is like the crowded main road.

VOA: special.2009.10.13

That's a lot of what stem cell biology is like - is about.

干细胞生物学的著作有很多

耶鲁公开课 - 生物医学工程探索课程节选

is that the, like the best stem cells come from human embryos.

是因为最好的干细胞来自于人类的胚胎。

干细胞和伦理 - SpeakingMax英语口语达人

She's also parted with Republicans over social issues like stem cell research and abortion.

CNN: Spotlight follows Snowe as health care battle advances

And to me, it's social issues like stem cell research.

NPR: Many Congressional Races Hinge on Female Vote

Scientists are very excited by the announcement of these findings, that cells that look and act like stem cells can be created from skin cells (known in science as fibroblasts).

BBC: NEWS | Health | 'This is a very exciting advance'