通过建立能够更好地模拟体内环境的人类细胞和组织的体外模型，能防止许多这样的死亡。

Many of these deaths could be prevented through the development of in vitro models of human cells and tissues that better mimic in vivo environments.

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我们首先得做一个体外细胞培养实验，在动物模型中证明它的存在，然后开发出一种能影响突变基因产物的分子或蛋白质。

We have to do in-vitro cell culture experiments first, prove it in an animal model, and then develop a molecule or protein which will affect the mutated gene product.

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方法：建立微载体-基质细胞体外造血模型。

Methods: The hematopoietic model for stromal cell adhering to microcarrier was established.

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