Unlike tissue-specific stem cells, embryonic stem cells are pluripotent.

与组织特异性干细胞不同，胚胎干细胞有很多种功能。

So I've studied a lot about stem cells embryonic stem cells are particularly powerful.

我对干细胞研究很多, 胚胎干细胞尤其强大。

Medulloblastomas originate from embryonic stem cells and they tend to be extremely aggressive.

髓母细胞瘤来源于胚胎干细胞，它们往往极具侵袭性。

Embryonic stem cells are created from leftover embryos that are willingly donated by patients from fertility clinics.

胚胎干细胞可以从多余的胚胎细胞中获，胚胎细胞是由生育诊所里一愿捐赠的患者那里获的。

Like embryonic stem cells, they, too, can become any kind of cell in the body.

类似于胚胎干细胞，它们也能够成为身体里任何种类的细胞。

Stem cells found in embryos can spin off a wide range of tissue types.

胚胎干细胞可以分化成多种组织类型。

Japanese researchers have grown teeth and even organs with embryonic stem cells from rats and mice.

日本研究人员已经利用老鼠和小鼠的胚胎干细胞培育出了牙齿和胰腺、肾脏等器官。

Geron, just last year, started the first trial using human embryonic stem cells to treat spinal cord injuries.

杰龙去年开始第一次尝试用人类的胚胎干细胞治疗脊髓疾病。

Embryonic stem cells, in particular, are “pluripotent”, meaning they are able to become any other type of cell.

“多能的”胚胎干细胞被再生医学家们寄予厚望，所谓“多能”就味着干细胞可以分化出多种其他类型的细胞。

These are regular skin, fat, liver, or other cells that scientists have changed to behave like embryonic stem cells.

细胞可以是普通的表皮、脂肪、肝或者其他种类的细胞，而科学家们已经能够将它们转变为具有胚胎干细胞功能的细胞。

Until now, two kinds of stem cells of human sources have been known: embryonic stem cells and adult stem cells.

目前已知的人类干细胞有两种：胚胎干细胞和成体干细胞。

The models are made from stem cells — simple cells in the body that can develop into one of many specialized cells.

胚胎模型是由干细胞制成的，干细胞是体内可以发育成多种特化细胞之一的简单细胞。

The models are made from stem cells – simple cells in the body that can develop into one of many specialized cells.

胚胎模型是由干细胞制成的，干细胞是体内可以发育成多种特化细胞之一的简单细胞。

I think scientists died because they were working on embryonic stem cells.

我认为有科学家因研究胚胎干细胞而丧生。

1995 James Thompson isolates the embryonic stem cells of rhesus monkeys.

1995年，詹姆斯·汤普森成功分离出猕猴的胚胎干细胞。

This group of researchers wanted to create human-pig chimeras by injecting human stem cells into pig embryos.

一组研究人员希望通过向猪胚胎注射人干细胞来创建人猪嵌合体。

Objections are also raised by the use of embryonic stem cells to grow tissue for regenerative medicine.

利用胚胎干细胞培养用于再生医学的组织，也引发了反对之声。

1981 Martin Evans and Matt Kaufman, biologists at the University of Cambridge, successfully culture embryonic stem cells from mice.

1981年，剑桥大学的生物学家马丁·埃文斯和马特·考夫曼成功培养出小鼠的胚胎干细胞。

In November, for example, a company in California cancelled what had been the first trial of human embryonic stem cells, in those with spinal injuries.

例如，去年11月，一家位于加州的公司取消了原定的首例人胚胎干细胞在脊髓损伤者身上的试验。

Clinical trials of pluripotent cells are already happening, though they hark back to the days when only cells derived from embryos were available.

多能细胞的临床试验其实早已开始进行，只是种多能细胞还是由胚胎干细胞所培养（在当时也是唯一可用的技术）。