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1/This July’s @aspneph pathology webinar was all about pediatric Antineutrophil Cytoplasmic Antibody (ANCA)- associated vasculitis (AAV). Let's kick off this pediatric AAV tweetorial✍️with a quick question #NephTwitter
🤔 What is the role of ANCA antibodies❓
🤔 What is the role of ANCA antibodies❓
2/
✅Diagnostic marker and Pathogenic in nature
▶️ Proteinase-3 (PR3) and Myeloperoxidase (MPO) antigens are sequestered in neutrophil primary granules
▶️ Antigen exposure triggers immune response leading to endothelial activation
linkinghub.elsevier.com/retrieve/pii/S…
✅Diagnostic marker and Pathogenic in nature
▶️ Proteinase-3 (PR3) and Myeloperoxidase (MPO) antigens are sequestered in neutrophil primary granules
▶️ Antigen exposure triggers immune response leading to endothelial activation
linkinghub.elsevier.com/retrieve/pii/S…
3/
Mechanisms
📌Defective neutrophil apoptosis, leading to NETosis
📌Inefficient clearance of PR3/MPO
📌Antimicrobial antibodies cross reacting with PR3/MPO
📌Medication induced
Mechanisms
📌Defective neutrophil apoptosis, leading to NETosis
📌Inefficient clearance of PR3/MPO
📌Antimicrobial antibodies cross reacting with PR3/MPO
📌Medication induced
