from somewhere else in the heart?

做一个小的组织切片
You could take a small sample of those cells,

你会从这些细胞中获得小部分样品
and you could take them outside the body and grow them in culture.

并且取出体外进行培养
Well, this is where our ability to culture cells comes in very handy

这是我们能进行细胞培养很方便的方法
because we could take a small sample,

因为我们能够取一小部分样品
isolate the cells we want, propagate them in culture until we

将所要的细胞分离出来培养增殖直至
had millions of those cells, put them into the patch,

有成百万的细胞再将它们放到补丁上
put the patch back into the patient.

将补丁放回患者体内
Now, the patient has an autograft of cells,

这样患者就进行了细胞的自体移植
but placed in the right configuration

而不只是将其正确的放置
so that they function as a tissue.

以便像组织一样正确的行使功能
What are the problems with that?

那样的话会有什么问题