AstraZeneca Plc is to work with gene editing technologies developed by Cellectis SA of France to identify up to 10 candidate cell and gene therapies for cancer, and autoimmune and rare diseases. Founded in 1999, Cellectis has technology for creating allogeneic chimeric antigen receptor (CAR) T cells by gene editing cells from a healthy donor. The editing technology disables genes that cause donor cells to attack the host.