TOKYO--A panel has recommended that Japan lift its ban on therapeutic cloning by allowing researchers to use surplus eggs from fertility treatments to obtain embryonic stem cells. Scientists welcomed the proposed change, contained in an interim report last month to the Ministry of Education. "The importance of this technology for the study of human embryology, human oncology, and drug discovery will increase," says Shin-Ichi Nishikawa, a stem cell researcher at the RIKEN Center for Developmental Biology in Kobe.
The new rules, now open for public comment, will be vetted by the prime minister's Council for Science and Technology Policy.