Immortalized stem cells and method for producing same

摘要

The purpose of the present invention is to provide immortalized stem cells for producing culture supernatant that can be used in the treatment of human diseases. Provided is a method for producing immortalized stem cells, the method being provided with: a step for producing a DNA fragment that includes a telomerase reverse transcriptase and at least one gene selected from the group consisting of Bmi-1, human papilloma virus E6, and human papilloma virus E7; a step for producing a viral vector that incorporates the DNA fragment including the gene; a step for transfecting the viral vector into mammalian stem cells and introducing the gene into the stem cells; and a step for culturing the stem cells into which the gene was introduced and using a drug to select immortalized stem cells.