Up-to-date information room of international medical treatment welfare/国際医療福祉の最新情報ルーム

Yamanaka Shinya and the professor of Kyoto University clarified the finding assumed for about 60 percent of the mouse that had raised it from the embryo (yes) that transplanted the new versatile cell (iPS cell) made from four kinds of genes including the oncogene to have gotten the cancer one year later at the reconstruction of Japan medical treatment society on the fifth. Up to now, it had been reported that about 20 percent got cancer at half a year. In addition, after one year making, the carcinogenesis rate is Iu when time was examined putting it when it rose to three times.

The descendant who inherited the gene of the iPS cell origin was rarely born though the mouse hardly made to the cancer when making it from 3 genes except the oncogene of "c-Myc". It is Iu when there is a possibility that is a defective iPS cell.

The Yamanaka professor is speaking, "It is necessary to assess safety spending time though the research of the iPS fabrication route is advanced all over the world".