方法体外细胞实验：以组织块法体外培养人牙髓成纤维细胞，传代备用。
Methods In vitro study: pulp fibroblasts were collected and cultured from healthy human dental pulp by tissue explant method.
采用体外细胞实验方法，观察了石英尘对DPH和ANS标记的肺胞巨噬细胞膜流动性和荧光性质的影响，同时测定了肺泡巨噬细胞活性氧的产生。
The effects of quartz on membranous fluidity labelled with DPH and ANS and the production of oxygen free radicals of alveolar macrophages were studied in vitro.
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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