Rejection Risk Cut by Coaxing iPS Cells to Become More Specialized Prior to Transplantation

June 3, 2014

(Medical News Today) – For many scientists, the clinical promise of stem cells has been dampened by very real concerns that the immune system will reject the transplanted cells before they could render any long-term benefit. Previous research in mice has suggested that even stem cells produced from the subject’s own tissue, called iPS cells, can trigger an immune attack. Now researchers at the Stanford University School of Medicine have found that coaxing iPS cells in the laboratory to become more-specialized progeny cells (a cellular process called differentiation) before transplantation into mice allows them to be tolerated by the body’s immune system.