Anti-inflammatory proteins as therapy targets in chronic rhinosinusitis with hyperplastic nasal polyposis: Study
Researchers have found in a new study that a protein- Deleted in Malignant Brain Tumors-1 (DMBT1) is induced in polyps of chronic rhinosinusitis with nasal polyposis (CRSwNP).
The research has been published in the Glycobiology Journal.
Siglec-8, an immune-inhibitory sialoglycan binding lectin (S8), is expressed on the surface of eosinophils and mast cells, which are potent mediators of allergic inflammation. When S8 engages endogenous sialoglycan ligands, eosinophils undergo apoptosis and mast cell mediator release is inhibited.
In the human airway, Siglec-8 ligands (S8L) are sialylated keratan sulfate chains carried on isoforms of the protein Deleted in Malignant Brain Tumors-1 (DMBT1), an immunoregulatory protein that we recently identified as the endogenous ligand for S8, DMBT1.
Therefore, the authors Hyun Sil Lee and colleagues from the Department of Medicine, Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, USA conducted the present study to report that S8L is overexpressed in chronic rhinosinusitis with nasal polyposis (CRSwNP), a prevalent eosinophilic laden airway disease.
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