Tuesday, July 01, 2008

New technique produces genetically identical stem cells

Source: Whitehead Institute for Biomedical Research
Date: July 1, 2008

Summary:

Adult cells of mice created from genetically reprogrammed cells—so-called induced pluripotent stem (IPS) stem cells—can be triggered via drug to enter an embryonic-stem-cell-like state, without the need for further genetic alteration. The discovery, which promises to bring new efficiencies to embryonic stem cell research, is reported in the July 1, 2008, online issue of Nature Biotechnology.

The authors explain the scientific implications of this finding:

"This technical advancement will allow thousands of identical reprogrammed cells to be used in experiments," says Marius Wernig, one of the paper's two lead authors and a postdoctoral researcher in Whitehead Member Rudolf Jaenisch's lab.

The study also points out potential therapeutic applications of this research:

"Using these cells could help define the milestones of how cells are reprogrammed and screen for drug-like molecules that replace the potentially cancer-causing viruses used for reprogramming," adds Christopher Lengner, the other lead author and also a postdoctoral researcher in the Jaenisch's lab.