A non–complement-fixing antibody to β2 glycoprotein I as a novel therapy for antiphospholipid syndrome

Author:

Agostinis Chiara1,Durigutto Paolo2,Sblattero Daniele3,Borghi Maria O.45,Grossi Claudia4,Guida Filomena2,Bulla Roberta2ORCID,Macor Paolo2,Pregnolato Francesca4,Meroni Pier Luigi45,Tedesco Francesco2ORCID

Affiliation:

1. Institute for Maternal and Child Health, Istituto di Ricovero e Cura a Carattere Scientifico Burlo Garofolo, Trieste, Italy;

2. Department of Life Sciences, University of Trieste, Trieste, Italy;

3. Department Health Sciences and Research Institute Against Digestive Cancer, University of Eastern Piedmont, Novara, Italy;

4. Laboratory of Immuno-Rheumatology, Istituto di Ricovero e Cura a Carattere Scientifico Istituto Auxologico Italiano, Milan, Italy; and

5. Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy

Abstract

Key Points A recombinant antibody recognizing the D1 domain of β2 glycoprotein I induces fetal loss and clot formation in animal models. The CH2-deleted antibody fails to activate complement and prevents the procoagulant and proabortive effects of patient antibodies.

Publisher

American Society of Hematology

Subject

Cell Biology,Hematology,Immunology,Biochemistry

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