RT Journal Article SR Electronic T1 Molecular Action of ADAMTS13 and Transfusion Therapies of Thrombotic Thrombocytopenia Pupura JF American Society for Clinical Laboratory Science JO Clin Lab Sci FD American Society of Chemistry and Laboratory Science SP ascls.120.002287 DO 10.29074/ascls.120.002287 A1 Billie Ketelsen YR 2020 UL http://hwmaint.clsjournal.ascls.org/content/early/2020/07/31/ascls.120.002287.abstract AB Thrombotic Thrombocytopenia Pupura (TTP) is a disease that is classified by abnormal functioning of the ADAMTS13 protease. ADAMTS13 protease impairment can be caused by genetic mutations at the gene level or through autoantibodies that are formed within the circulation. Congenital mutations account for about 5-10% of the TTP population while the acquired version is more common. The acquired version of TTP is due to inhibitory and non-inhibitory autoantibodies that affect the ADAMTS13 protease. Both congenital and acquired TTP are treated through transfusion therapy with therapeutic plasma exchange (TPE). TPE is used to remove the autoantibodies and any mutated ADAMTS13 proteases in the circulation while providing the addition of normal functioning ADAMTS13 to the circulation.