ReviewAntibodies (Basel, Switzerland)2026
Detection and Identification of Anti-Neutrophil Antibodies in Immune Neutropenia: Integrating Serology, Genotyping and Clinical Interpretation.
Review in Antibodies (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors.
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Abstract
Immune-mediated neutropenias comprise a heterogeneous group of disorders characterized by antibody-mediated destruction of neutrophils, in which the detection of anti-neutrophil antibodies remains a significant diagnostic challenge. Human neutrophil antigens (HNAs) are key targets in both autoimmune and alloimmune conditions, and their identification requires an integrated laboratory approach combining serological assays, HNA genotyping, and clinical evaluation. However, variability in assay sensitivity, the presence of low-titer or conformationally dependent antibodies, and interference from anti-HLA antibodies may lead to inconclusive or misleading results. This review summarizes the immunological mechanisms underlying anti-HNA antibody-mediated neutropenia and critically evaluates current laboratory methods, including cell-based and bead-based assays. The role of HNA genotyping in supporting antibody identification and improving diagnostic accuracy is also discussed. In addition, we highlight the importance of interpreting serological findings according to antibody specificity and clinical context. An integrated and multidisciplinary diagnostic approach is essential to ensure accurate diagnosis and appropriate clinical management, while emerging technologies may further improve antibody detection in the future.
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