High-density seedling expression system for the production of bioactive human cardiotrophin-1, a potential therapeutic cytokine, in transgenic tobacco chloroplasts
Instituto de Agrobiotecnología, UPNA-CSIC-Gobierno de Navarra, Campus Arrosadía, 31006 Pamplona, Spain; Área de Terapia Génica y Hepatología, CIMA, 31008 Pamplona, Spain