Cellular Dynamics International has an agreement letting iPS Academia Japan distribute the Madison company?s stem cell-derived heart cells in Japan. The agreement brings together CDI founder and UW-Madison researcher James Thomson with Shinya Yamanaka, a member of the Japanese company?s advisory board. Both are considered stem cell pioneers in their countries. They published articles in scientific journals at the same time in 2007 describing their separate breakthroughs in stem cell research.