Objective To establish the culture system of human embryonic stem-like cells feed layer.

目的建立人胚胎干细胞饲养层培养体系。

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A second prediction is that breast cancer stem-like cells arise denovo from non-stem-like cells.

预测二，乳腺癌干细胞样细胞从非干细胞样细胞全新产生。

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Results Acquired 16 passages in mouse and 7 passages in human and established the culture system of human embryonic stem-like cells.

结果分别获得了传16代的胎鼠成纤维细胞和传7代的人胎儿成纤维细胞，建立了人胚胎干细胞饲养层的培养体系。

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While cloning stem cells is a technical breakthrough, there's already a method of deriving embryonic-like stem cells that doesn't require the use of embryos at all: induced pluripotent stem (IPS) cells, said Dr. George Daley, who is director of the Stem Cell Transplantation Program at Children's Hospital Boston and an international expert in stem cells.

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That technique for generating embryonic-like stem cells (called induced pluripotent stem cells, or iPS cells) bypassed the need for transferring the cells into eggs, as Wilmut had done, and also averted the ethical issues attached to extracting stem cells from embryos as Thomson had done.

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The technique used by Green and Hollister is part of a burgeoning field called regenerative medicine, which involves engineering therapies -- using things like stem cells, or "body parts" constructed out of biological material -- to harness the body's ability to heal itself.

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