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Charcot-Leyden crystals: An ancient but never so current discovery
M Gelardi1, R Giancaspro1, M Cassano1
1Unit of Otolaryngology, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy.
American Journal of Otolaryngology
|March 22, 2023
Summary
Charcot-Leyden crystals (CLCs), formed by Galectin-10, are linked to severe rhinopathies. Their presence indicates eosinophil and mast cell infiltration, worsening prognosis and relapse risk.
Area of Science:
- Immunology
- Cell Biology
- Rhinology
Background:
- Charcot-Leyden crystals (CLCs) are crystalline structures formed from Galectin-10.
- Initially linked to eosinophils, mast cells are also recognized as producers of CLCs.
- CLCs can induce crystallopathy and exacerbate inflammatory conditions.
Purpose of the Study:
- To investigate the role of CLCs in the severity and prognosis of rhinopathies.
- To understand the correlation between CLCs, eosinophils, and mast cells in nasal cytology.
Main Methods:
- Analysis of nasal cytology (NC) samples.
- Correlation of CLC presence with inflammatory cell infiltration (eosinophils and mast cells).
- Assessment of rhinopathy severity and prognosis based on CLC and inflammatory cell presence.
Main Results:
- The presence of CLCs in nasal cytology is strictly correlated with eosinophil and mast cell infiltration.
- Rhinopathies with mixed eosinophilic-mast cell infiltrates and abundant CLCs exhibit a worse prognosis.
- Higher CLC levels are associated with an increased risk of disease relapse.
Conclusions:
- Nasal cytology is a valuable tool for assessing CLC presence and inflammatory status in rhinopathies.
- Mixed eosinophilic-mast cell inflammation, indicated by CLCs, predicts poorer outcomes in rhinopathies.
- Targeting both eosinophils and mast cells may offer therapeutic benefits for reducing CLC-induced damage.
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