Now, neurons are the main cells of the nervous system.

我们知道，神经元是神经系统的主要组成细胞。

Since the liver cells seem to be the main cells targeted in Reye's disease, the liver becomes one of the main organs affected.

由于肝细胞是瑞氏综合征的靶细胞，所以肝脏成为了主要的受累器官。