ArticleScientific reports2022
Lipocalin 15 in the olfactory mucus is a biomarker for Bowman's gland activity.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 8 citations in OpenAlex.
- Dysregulated glia and periglomerular cells in the olfactory bulb and altered lipocalins in the olfactory epithelium underlie olfactory dysfunction in a murine model of eosinophilic chronic rhinosinusitis.Journal of neuroinflammation · 2026Article
- Distinct Functional Signatures of Human Olfactory and Respiratory Mucus Revealed by Proteomics Combined With Machine Learning.Proteomics. Clinical applications · 2026Article
- A murine sinonasal infection model recapitulates key features of clinical chronic rhinosinusitis.Journal of medical microbiology · 2026Article
- YAP and TEAD Are Transcriptional Regulators of Neuroendocrine Differentiation and Growth in Carcinoid Cells.The American journal of pathology · 2026Article
- Review
- Intranasal pH and Olfactory Function Among Healthy Adults.The Laryngoscope · 2025Article
- Fibronectin in the olfactory mucus increases sensitivity of olfactory receptor response to odorants.Science advances · 2025Article
- Role and Mechanism of Olfactory Stem Cells in the Treatment of Olfactory Disorders.Stem cells international · 2025Review
- Functions of human olfactory mucus and age-dependent changes.Scientific reports · 2023Article
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Authors and funding
14 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Olfactory mucus contributes to the specific functions of the olfactory mucosa, but the composition and source of mucus proteins have not been fully elucidated. In this study, we used comprehensive proteome analysis and identified lipocalin 15 (LCN15), a human-specific lipocalin family protein, as an abundant component of the olfactory mucus. Western blot analysis and enzyme-linked immunosorbent assay (ELISA) using a newly generated anti-LCN15 antibody showed that LCN15 was concentrated in olfactory mucus samples, but not in respiratory mucus samples. Immunohistochemical staining using anti-LCN15 antibody revealed that LCN15 localized to the cytokeratin 18-positive Bowman's glands of the olfactory cleft mucosa. Quantitative image analysis revealed that the area of LCN15 immunoreactivity along the olfactory cleft mucosa significantly correlated with the area of neuron-specific Protein-Gene Product 9.5 (PGP9.5) immunoreactivity, suggesting that LCN15 is produced in non-degenerated areas of the olfactory neuroepithelium. ELISA demonstrated that the concentration of LCN15 in the mucus was lower in participants with normal olfaction (≥ 50 years) and also tended to be lower in patients with idiopathic olfactory loss (≥ 50 years) than in participants with normal olfaction (< 50 years). Thus, LCN15 may serve as a biomarker for the activity of the Bowman's glands.
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