BACKGROUND: Prolidase deficiency is a rare genetic disorder for which a cure has not yet been found. OBJECTIVES: To assess the effectiveness of apheresis exchange as a new therapeutic approach. METHODS: Apheresis exchanges were repeated monthly for four consecutive months, in parallel, on two patients, replacing prolidase-deficient red blood cells with normal filtered cells. Prolidase activity and urinary dipeptides were determined at regular intervals. RESULTS: The constant presence of active prolidase inside cells allowed a continuous, although partial, degradation of imidodipeptides, with a concomitant improvement of skin ulceration. CONCLUSIONS: Apheresis exchange could be a reasonable way of obtaining a clinical improvement in these patients.
BACKGROUND:Prolidase deficiency is a rare genetic disorder for which a cure has not yet been found. OBJECTIVES: To assess the effectiveness of apheresis exchange as a new therapeutic approach. METHODS: Apheresis exchanges were repeated monthly for four consecutive months, in parallel, on two patients, replacing prolidase-deficient red blood cells with normal filtered cells. Prolidase activity and urinary dipeptides were determined at regular intervals. RESULTS: The constant presence of active prolidase inside cells allowed a continuous, although partial, degradation of imidodipeptides, with a concomitant improvement of skin ulceration. CONCLUSIONS: Apheresis exchange could be a reasonable way of obtaining a clinical improvement in these patients.
Authors: Francis Rossignol; Marvid S Duarte Moreno; Carlos R Ferreira; Manuel Schiff; Jean-François Benoist; Manfred Boehm; Emmanuelle Bourrat; Aline Cano; Brigitte Chabrol; Claudine Cosson; José Luís Dapena Díaz; Arthur D'Harlingue; David Dimmock; Alexandra F Freeman; María Tallón García; Cheryl Garganta; Tobias Goerge; Sara S Halbach; Jan de Laffolie; Christina T Lam; Ludovic Martin; Esmeralda Martins; Andrea Meinhardt; Isabelle Melki; Amanda K Ombrello; Noémie Pérez; Dulce Quelhas; Anna Scott; Anne M Slavotinek; Ana Rita Soares; Sarah L Stein; Kira Süßmuth; Jenny Thies Journal: Genet Med Date: 2021-05-26 Impact factor: 8.822