@article {3559,
	title = {A non-complement-fixing antibody to β2 glycoprotein I as a novel therapy for antiphospholipid syndrome.},
	journal = {Blood},
	volume = {123},
	year = {2014},
	month = {2014 May 29},
	pages = {3478-87},
	abstract = {<p>A single-chain fragment variable (scFv) recognizing β2-glycoprotein 1 (β2GPI) from humans and other species was isolated from a human phage display library and engineered to contain an IgG1 hinge-CH2-CH3 domain. The scFv-Fc directed against β2GPI domain I-induced thrombosis and fetal loss, thus mimicking the effect of antibodies from patients with antiphospholipid syndrome (APS). Complement is involved in the biological effect of anti-β2GPI scFv-Fc, as demonstrated by its ability to promote in vitro and in vivo complement deposition and the failure to induce vascular thrombosis in C6-deficient rats and fetal loss in C5-depleted mice. A critical role for complement was also supported by the inability of the CH2-deleted scFv-Fc to cause vessel occlusion and pregnancy failure. This antibody prevented the pathological effects of anti-β2GPI antibodies from APS patients and displaced β2GPI-bound patient antibodies. The CH2-deleted antibody represents an innovative approach potentially useful to treat APS patients refractory to standard therapy.</p>},
	keywords = {Abortion, Spontaneous, Animals, Antibodies, Monoclonal, Antiphospholipid Syndrome, Autoantigens, beta 2-Glycoprotein I, Complement Activation, Complement System Proteins, Human Umbilical Vein Endothelial Cells, Humans, Immunoglobulin G, Male, Mice, Protein Binding, Rats, Recombinant Proteins, Single-Chain Antibodies, Thrombosis, Trophoblasts},
	issn = {1528-0020},
	doi = {10.1182/blood-2013-11-537704},
	author = {Agostinis, Chiara and Durigutto, Paolo and Sblattero, Daniele and Borghi, Maria O and Grossi, Claudia and Guida, Filomena and Bulla, Roberta and Macor, Paolo and Pregnolato, Francesca and Meroni, Pier Luigi and Tedesco, Francesco}
}
