Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
Plasma of six patients with acquired TTP competed for binding of scFv I-9 to ADAMTS13.
|
16898953 |
2006 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
Autoantibodies that inactivate ADAMTS13 are the most frequent cause of acquired TTP.
|
14976043 |
2004 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
We report identical twin sisters suffering from acquired TTP due to immunoglobulin G (IgG) autoantibodies inactivating ADAMTS13, suggesting an important role of hitherto unidentified genetic determinants of ADAMTS13 inhibitor formation.
|
14982879 |
2004 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
The autoantibody-resistant ADAMTS13 variants may be further developed as a novel therapeutic for acquired TTP with inhibitors.
|
22289888 |
2012 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
We now show that replacement of R660, Y661, or Y665 with alanine in ADAMTS13 reduced/abolished the binding of 2 previously isolated human monoclonal antibodies and polyclonal antibodies derived from plasma of 6 patients with acquired TTP.
|
20032502 |
2010 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
Generation of Anti-Murine ADAMTS13 Antibodies and Their Application in a Mouse Model for Acquired Thrombotic Thrombocytopenic Purpura.
|
27479501 |
2016 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
These results suggest that VH1-69 derived antibodies directed towards ADAMTS13 develop in the majority of patients with acquired TTP.
|
19054323 |
2009 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
Unlike acquired thrombotic thrombocytopenic purpura or haemolytic uraemic syndrome, which are often intractable, thrombotic microangiopathy in patients with Upshaw-Schulman syndrome (USS)--a congenital deficiency of von Willebrand factor-cleaving protease (ADAMTS13) activity--responds very well to plasma infusion and does not even require plasma exchange.
|
16449289 |
2006 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
Finally, a model is presented for the development of anti-ADAMTS13 antibodies in previously healthy individuals that incorporates the recent identification of HLA DRB1*11 as a risk factor for acquired TTP.
|
21535387 |
2011 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
Antibodies anti-ADAMTS13 were positive, establishing the diagnosis of acquired thrombotic thrombocytopenic purpura.
|
29550758 |
2018 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
We anticipate that our findings may be relevant for the initiation of autoimmune reactivity against ADAMTS13 in patients with acquired TTP.
|
24977290 |
2014 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
Diagnosis of aTTP was confirmed if ADAMTS13 level were < 10% and/or the medical records explicitly mentioned aTTP diagnosis.
|
31730475 |
2019 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
Deficiency of ADAMTS13, due to autoimmune inhibitors in patients with acquired TTP and mutations of the ADAMTS13 gene in hereditary cases, leads to VWF-platelet aggregation and microvascular thrombosis of TTP.
|
20058209 |
2010 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
Click to hear Dr Cataland's presentation on acquired thrombotic thrombocytopenic purpura SUMMARY: Background Acquired thrombotic thrombocytopenic purpura (TTP) is a rare, life-threatening thrombotic microangiopathy associated with the development of autoantibodies against the von Willebrand factor-cleaving protease ADAMTS-13.
|
27762046 |
2016 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
Acquired TTP is often but not always associated with severe, autoantibody-mediated ADAMTS-13 deficiency.
|
16102032 |
2005 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
Congenital TTP occurs due to ADAMTS13 mutations, with the usual debut occurring during the first years of life, while acquired TTP is associated with auto-antibodies against ADAMTS13.
|
18807073 |
2009 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
Congenital TTP is caused by a defect in the ADAMTS13 gene resulting in decreased or absent enzyme activity; acquired TTP results from autoantibodies that either inhibit the activity or increase the clearance of ADAMTS13.
|
26581428 |
2016 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
ADAMTS13 (a disintegrin-like and metalloprotease with thrombospondin type-1 motifs 13) has been shown to be of major pathophysiological importance for thrombotic microangiopathy (TMA) in the setting of thrombocytic thrombocytopenic purpura (TTP) when either lacking (inherited TTP) or if antibodies against ADAMTS13 are present (acquired TTP).
|
21531732 |
2011 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
ADAMTS13 activity <10% defined those with idiopathic/acquired TTP (41/70).
|
31778944 |
2020 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
We applied the Impact-R system [Cone and plate(let) Analyzer, CPA] to determine optimal conditions for ADAMTS-13 function, to assess it's activity in TTP patients and to distinguish inherited TTP (inTTP) from acquired TTP (acTTP).
|
16894459 |
2006 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
Acquired thrombotic thrombocytopenic purpura (TTP) is an autoimmune disorder resulting in potentially life-threating systemic thrombotic microangiopathy due to production of antibodies directed against the von Willebrand factor-cleaving protease ADAMTS13.
|
29564686 |
2018 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
Modifying ADAMTS13 to modulate binding of pathogenic autoantibodies of patients with acquired thrombotic thrombocytopenic purpura.
|
31753929 |
2019 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
However, undetectably low plasma ADAMTS13 activity in the pre-treatment sample, associated with inhibitory ADAMTS13 antibodies, subsequently changed the diagnosis to acquired TTP. vWF protease activity normalized within 15 months without further treatment, and the patient remained in long-term clinical and laboratory remission.
|
29728803 |
2018 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
ADAMTS13 activity is used for confirmation of the diagnosis of acquired TTP (97%).
|
29150875 |
2018 |
Thrombotic thrombocytopenic purpura, acquired
|
0.100 |
Biomarker
|
disease |
BEFREE |
The results from this study provide a basis for the identification of immuno-dominant epitopes on ADAMTS13 involved in the onset of acquired thrombotic thrombocytopenic purpura.
|
29567779 |
2018 |