With a biologist degree in Spain, upon her PhD in Biochemistry and Molecular Biology in 2000, Maria J Citores joined the Laboratory of Internal Medicine at Hospital Universitario Puerta de Hierro. After some years working in autoimmune diseases, the main research topic has been focused in immunology in liver transplantation since 2006, with teaching and research activity. She has participated as professor and director of some doctorate courses in the Department of Medicine at Madrid Autonomous University, and in courses for Laboratory Technicians and Medicine or Science graduates. Also, has contributed to training in research of graduates of Medicine, which have led to six Doctoral Thesis. She has collaborated in fifteen research projects, focused in last years on the diagnostic and prognostic value of genetic polymorphisms of immunity mediators in complications and outcome of patients with liver transplantation. Among these, some genetic polymorphisms has been associated with severity recurrence of hepatitis C infection, development of diabetes mellitus, chronic kidney disease, acute graft rejection or hepatocellular carcinoma recurrence after liver transplantation. She has also carried out different studies of immune monitoring in patients with liver transplantation and has collaborated in a clinical guideline to analysis of biomarkers for immunosupression monitoring after solid organ transplantation. Results of the research activity have been presented in national and international congresses (more than 120 contributions) and 33 original articles published in international journals. Member of Madrid Society of Transplantation, Spanish Society of Liver transplantation and Spanish Society of Transplantation. She has also contributed as peer reviewer with some scientific journals.