Retroviral expression of human cystatin genes in HeLa cells

Retroviral gene transfer is a highly efficient and effective method of stably introducing genetic material into the genome of specific cell types. The process involves the transfection of retroviral expression vectors into a packaging cell line, the isolation of viral particles, and the infection of target cell lines. Compared to traditional gene transfer methods such as liposome-mediated transfection, retroviral gene transfer allows for stable gene expression in cell populations without the need for lengthy selection and cloning procedures. This is particularly helpful when studying gene products that have negative effect on cell growth and viability. Here, we describe the retroviral transfer of cystatin cDNAs using HEK293-derived Phoenix packaging cells and human HeLa cervical carcinoma cells as target cells.