Lentiviral vectors are currently very effective tools in molecular and cell experiment. Lentiviral vector, a kind of retroviral vectors, has a number of unique advantages in target gene transferation, for example, the ability of transfection to the dividing or nondividing cells, its high efficiency of transfection and a capacity of large target gene fragments. This paper describes the sources of lentiviral vectors, molecular characteristics, research progress, etc.
慢病毒载体（lentivirus vector, LV）是目前分子及细胞生物实验中非常有效的工具，在基因转染方面有着许多独特的优势，例如，对细胞是否处于有丝分裂期没有特别的要求，基因转染效率高，可容纳较大基因片段等。本文将就慢病毒载体的来源、分子特征及研究进展等进行综述。