A team at Juntendo University School of Medicine has developed a technology to differentiate peripheral blood-derived human iPS cells into neural stem cells with high efficiency. iPS cells derived from about 150 patients are already stocked in liquid nitrogen tanks and this collection shall be expanded to over several thousand cases in the future. The iPS cells derived from peripheral blood cells were cultured under hypoxic environment and could be differentiated with high efficiency into neural stem cells within 7 days

Takuya Matsumoto et al., Stem cell reports, February 18, 2016