Therapeutic ACPA inhibits NET formation: a potential therapy for neutrophil-mediated inflammatory diseases  

作　　者：Renato G.S.Chirivi Jos W.Gvan Rosmalen Maarten van der Linden Maximilien Euler Gonny Schmets Galina Bogatkevich Konstantinos Kambas Jonas Hahn Quinte Braster Oliver Soehnlein Markus H.Hoffmann Helmuth H.Gvan Es Jos M.H.Raats 

机构地区：[1]ModiQuest B.V.,Oss,The Netherlands [2]Citryll B.V.,Oss,The Netherlands [3]Department of Internal Medicine 3-Rheumatology and Immunology,University Hospital Erlangen,Friedrich-Alexander-Universität Erlangen-Nürnberg and University Hospital Erlangen,Erlangen,Germany [4]Department of Medicine,Division of Rheumatology and Immunology,Medical University of South Carolina,Charleston,SC,USA [5]Laboratory of Molecular Hematology,Democritus University of Thrace,Alexandroupoli,Greece [6]Institute for Cardiovascular Prevention(IPEK),Ludwig-Maximilians-University Munich,Munich,Germany [7]German Center for Cardiovascular Research(DZHK),Partner Site Munich Heart Alliance,Munich,Germany [8]Department of Physiology and Pharmacology,Karolinska Institutet,Stockholm,Sweden

出　　处：《Cellular & Molecular Immunology》2021年第6期1528-1544,共17页中国免疫学杂志（英文版）

基　　金：Feasibility grants from the Dutch government(MTVLA15144 and NITLS14050).

摘　　要：Excessive release of neutrophil extracellular traps(NETs)is associated with disease severity and contributes to tissue injury,followed by severe organ damage.Pharmacological or genetic inhibition of NET release reduces pathology in multiple inflammatory disease models,indicating that NETs are potential therapeutic targets.Here,we demonstrate using a preclinical basket approach that our therapeutic anti-citrullinated protein antibody(tACPA)has broad therapeutic potential.Treatment with tACPA prevents disease symptoms in various mouse models with plausible NET-mediated pathology,including inflammatory arthritis(IA),pulmonary fibrosis,inflammatory bowel disease and sepsis.We show that citrulline residues in the N-termini of histones 2A and 4 are specific targets for therapeutic intervention,whereas antibodies against other N-terminal post-translational histone modifications have no therapeutic effects.Because citrullinated histones are generated during NET release,we investigated the ability of tACPA to inhibit NET formation.tACPA suppressed NET release from human neutrophils triggered with physiologically relevant human disease-related stimuli.Moreover,tACPA diminished NET release and potentially initiated NET uptake by macrophages in vivo,which was associated with reduced tissue damage in the joints of a chronic arthritis mouse model of IA.To our knowledge,we are the first to describe an antibody with NET-inhibiting properties and thereby propose tACPA as a drug candidate for NET-mediated inflammatory diseases,as it eliminates the noxious triggers that lead to continued inflammation and tissue damage in a multidimensional manner.

关 键 词：Neutrophil Extracellular Traps AUTOIMMUNITY CITRULLINATION Therapeutic Antibody NET inhibition 

分 类 号：R364.5[医药卫生—病理学]