Photo: Bioreactor at work Summary: Newly discovered cells can develop into body tissue, potentially curbing ethical debates over the use of embryonic stem cells. By Bill Detwiler | July 19, 2006 -- 11:49 GMT (04:49 PDT) Follow @billdetwiler Bioreactor Nico Forraz, co-lead of the Stem Cell Therapy group at Kingston University, loads a micro-bioreactor. Topic: Health Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.