To specialize stem cells more than 350 clinical trials are underway to test tissue self-repair. The few hundred researchers gathered at the beginning of October in Marseille, at the 5th congress of the International Society of Plastic and Regenerative Surgeons, see little limit to its future applications. For its organizer Guy Magalon, a pioneer of plastic and reconstructive surgery, cell therapy “touches humanity in its flesh by promising eternal life”. Or, if not immortality, at least an increased longevity in good form. In the service of Professor Philippe Menasché at the Georges Pompidou European Hospital, of the first patient suffering from a heart attack and treated successfully. using cardiac cells derived from human embryonic stem cells. Six patients have since benefited from this technique, which uses a regenerating patch made from a fibrin “net” – a protein in the blood plasma – that can be placed as a dressing on the area injured by an infarct.