Search Results - "Norris, Peter A A"
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Viper venoms drive the macrophages and hepatocytes to sequester and clear platelets: novel mechanism and therapeutic strategy for venom-induced thrombocytopenia
Published in Archives of toxicology (01-11-2021)“…Venomous snakebites cause clinical manifestations that range from local to systemic and are considered a significant global health challenge. Persistent or…”
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Glycoprotein V is a relevant immune target in patients with immune thrombocytopenia
Published in Haematologica (Roma) (01-06-2019)“…Platelet autoantibody-induced platelet clearance represents a major pathomechanism in immune thrombocytopenia (ITP). There is growing evidence for clinical…”
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New insights into IVIg mechanisms and alternatives in autoimmune and inflammatory diseases
Published in Current opinion in hematology (01-11-2020)“…PURPOSE OF REVIEWIntravenous immunoglobulin (IVIg) is an effective treatment for an increasing number of autoimmune and inflammatory conditions. However, IVIg…”
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Anti-inflammatory activity of CD44 antibodies in murine immune thrombocytopenia is mediated by Fcγ receptor inhibition
Published in Blood (15-04-2021)“…Monoclonal immunoglobulin G (IgG) antibodies to CD44 (anti-CD44) are anti-inflammatory in numerous murine autoimmune models, but the mechanisms are poorly…”
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Trogocytosis drives red blood cell antigen loss in association with antibody-mediated immune suppression
Published in Blood (29-02-2024)“…•AMIS-inducing antibodies trigger in vivo RBC antigen and membrane loss independent of clearance.•AMIS-inducing antibodies, including anti-D, trigger in vitro…”
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Inhibition of platelet phagocytosis as an in vitro predictor for therapeutic potential of RBC antibodies in murine ITP
Published in Blood (25-06-2020)“…Polyclonal anti-D is a first-line therapy for immune thrombocytopenia (ITP). Monoclonal antibodies are desirable alternatives, but none have yet proven…”
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Serum from half of patients with immune thrombocytopenia trigger macrophage phagocytosis of platelets
Published in Blood advances (25-07-2023)“…Humoral antiplatelet factors, such as autoantibodies, are thought to primarily clear platelets by triggering macrophage phagocytosis in immune thrombocytopenia…”
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Human Fc gamma receptor IIIA blockade inhibits platelet destruction in a humanized murine model of ITP
Published in Blood advances (23-04-2024)“…•Human FcγRIII monovalent blocking as a 1-armed antibody or albumin fusion protein are effective in a humanized model of ITP.•The monovalent albumin fusion…”
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Antibodies Against Macrophage CD44 Protect Platelets from FcγR-Mediated Phagocytosis: A Potential Mechanism for CD44 Antibody Amelioration of Murine Immune Thrombocytopenia
Published in Blood (08-12-2017)“…CD44 is a transmembrane protein that is widely expressed on leukocytes and other cell types. CD44 is the major receptor for hyaluronan, and CD44-hyaluronan…”
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Targeting β3 Integrin Psi Domain Inhibits Both Platelet Aggregation and Blood Coagulation: Two Birds with One Stone
Published in Blood (29-11-2018)“…Integrin αIIbβ3 plays key roles in thrombosis and hemostasis primarily through mediating platelet adhesion and aggregation. We recently reported that the…”
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Fcγ Receptors I and III on Splenic Macrophages Mediate GPIIb/IIIa Autoantibody-Dependent Phagocytosis of Platelets in Human Immune Thrombocytopenia
Published in Blood (29-11-2018)“…Autoantibody-opsonized platelets in immune thrombocytopenia (ITP) are thought to be destroyed primarily by macrophage Fc gamma receptor (FcγR)-mediated…”
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Anti-Glycoprotein V Autoantibodies in Patients with Immune Thrombocytopenia: Regularly Detectable and Functionally Relevant
Published in Blood (29-11-2018)“…Immune thrombocytopenia (ITP) results from autoimmunization against platelet antigens. Autoantibodies (aabs) are considered to represent a major mechanism of…”
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Serum from half of patients with immune thrombocytopenia triggers macrophage phagocytosis of platelets
Published in Blood advances (25-07-2023)“…•Incubation of ITP serum with normal donor platelets triggered platelet uptake via macrophage phagocytosis for sera from half of the patients with…”
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