Once a virus gains access to the specific host cell, it can alter or manipulate the function of the host cell producing undesirable side effects.
一旦病毒进入特定的宿主细胞，它能改变或影响宿主细胞的功能，产生不希望的副作用。
2
Objective:To construct a recombinant defective retroviral vector carrying hNT3 gene and a stable virus-producing packaging cell lines , and then to identify them.