Biological Bank for the Patients Followed in a Constitutive Reference Center for Autoimmune Cytopenia

Autoimmune Hemolytic Anemia, Autoimmune Neutropenia, Immune Thrombocytopenia

Biological collection

The Internal Medicine Department of Haut-Lévêque Hospital (Pr E LAZARO, Pr JL PELLEGRIN, Pr JF VIALLARD) was accredited in 2017 by the Ministry of Health as a Constitutive Reference Center for Autoimmune Cytopenia. The investigators wish to launch new research projects in autoimmune cytopenia and propose a translational and fundamental research based on collaboration between the clinical department, the biological resource center and the CNRS and INSERM research units (Bedside to the Bench Strategy). Thus, in the perspective of future research work, it seems imperative to set up a biological bank for the patients followed in our Reference Center.

Our department follows about 350 patients with immune thrombocytopenia (ITP), 50 with autoimmune hemolytic anemia (AHA), and about thirty patients for autoimmune neutropenia and erythroblastopenia. The number of new patients per year is about 50. The investigators are working since several years on different research topics concerning ITP and AHA. In the field of ITP, the investigators are working on abnormalities of megakaryopoiesis present in a particular subgroup of patients. The investigators seek to identify the molecular mechanisms underlying this platelet-forming disorder. This research is done within the INSERM U1034 unit of the University of Bordeaux. In AHA, The investigators are working on the role of regulatory CD8+ T lymphocytes and the interest of low doses of Interleukin-2 in their treatment. This part is carried out within the CNRS unit UMR 5164 ImmunoConcept. The biological collection the investigators wish to create will be available for basic research projects and may be available to the pharmaceutical industry as part of the development of new molecules.

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