DUBLIN – Cellectis SA is picking up $15 million worth of equity in Cytovia Therapeutics Inc. and could earn as much as $760 million in development, regulatory and sales milestones from a deal involving up to five gene-edited allogeneic natural killer (NK) cell or chimeric antigen receptor (CAR-NK) cell therapies employing its Talen (transcription activator-like effector nuclease) gene editing technology.