Some become myeloid progenitor cells whereas others become lymphoid progenitor cells.

一些会成为髓系祖细胞，而其它的会成为淋巴系祖细胞。

These are stem cells and the more developed neural progenitor cells.

这些是干细胞及更高级的神经前体细胞。

In case of platelets, progenitor cells differentiate into megakaryocytes, which are responsible for creating platelets.

在血小板的生成过程中，造血细胞会分化成巨核细胞；由巨核细胞来制造血小板。

These new neurons had developed from neural progenitor cells, a type of undifferentiated neuron akin to a stem cell, in a process scientists call neurogenesis.

这些新神经元是从神经祖细胞(一种类似于干细胞的未分化神经元)发育而来的，科学家们将这一过程称为神经发生。

Now, the vast majority of bone marrow is made of hematopoietic cells which are the early progenitor cells that can differentiate into other cell types.

大部分骨髓由造血细胞形成；造血细胞是可以分化为其他类型细胞的原始细胞。

Then, progenitor cells, which can develop into various bodily tissues, form a mass at the site of injury and nearby nerves secrete growth-promoting proteins.

然后，可以发育成各种身体组织的祖细胞在受伤部位形成团块，附近的神经分泌促进生长的蛋白质。

B cells and NK cells complete their development where they started - in the bone marrow, whereas some lymphoid progenitor cells migrate to the thymus where they develop into T cells.

B细胞和NK细胞在它们产生的地方（骨髓中）完成发育，而一些淋巴系组细胞会迁移到胸腺，在那里它们发育成为T细胞。

If they go to the bone marrow, they can crowd out normal bone marrow progenitor cells and decrease the number of healthy red blood cells, white blood cells and platelets.

如果它们进入骨髓，则会抑制正常的骨髓祖细胞的生长，减少健康红细胞、白细胞和血小板的数量。

The researchers fished out the progenitor cells of 12 amniotic-fluid samples taken from second- and third-trimester pregnancies, and cultured them into kidney, small-intestine and lung organoids.

研究人员从孕中期和孕晚期采集的12份羊水样本中取出祖细胞，并将它们培养到肾脏、小肠和肺部类器官中。

First, they will kill some of these neural cells themselves that are responsible for forming part of the brain and, also, it will slow down the growth of these neural progenitor cells if they're not bad yet.

首先，这种病毒会杀死形成部分脑体的神经细胞，同时会减缓未变坏神经前体细胞的生长速度。

And there are some limitations, since not all organs can be replicated this way either; the brain, for example, is unlikely to be a target for future organoids since amniotic fluid does not seem to contain the appropriate progenitor cells.

而且有一些限制， 因为也不是所有的器官都可以以这种方式复制;例如，大脑不太可能成为未来类器官的目标， 因为羊水似乎不包含适当的祖细胞。