Last week we blogged about work by Marius Wernig of Stanford University, who has successfully converted human skin into nerves, skipping the step of first converting the cells into embryonic-like iPS cells. Wernig is quoted in a Nature news story talking about whether the work could replace induced pluripotent stem (iPS) cells or embryonic stem … Continue reading Marius Wernig on why we need many stem cell approaches to new therapies