期刊
AMERICAN JOURNAL OF OTOLARYNGOLOGY
卷 44, 期 4, 页码 -出版社
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.amjoto.2023.103844
关键词
Chronic rhinosinusitis with nasal polyposis; Clinical-cytological grading; Nasal cytology; Galectin-10; CLC; Charcot-Leyden crystals
Nasal cytology has revealed a correlation between the severity of rhinopathies and the presence of Charcot-Leyden crystals (CLCs), which are associated with eosinophils and mast cells infiltration. Rhinopathies with abundant CLCs and a mixed eosinophilic-mast cell inflammatory infiltrate have a worse prognosis and higher risk of relapse.
From the first description of Charcot-Leyden crystals (CLCs) to the present, many steps have been taken to understand the mechanisms underlying their formation. In particular, to date not only eosinophils but also mast cells are known to be responsible for the production of CLCs, which represent the crystallized form of Galectin10. Due to their characteristics, CLCs typically induce a crystallopathy and are responsible for an exacerbation of inflammation. Nasal cytology (NC) has allowed to better understand the correlation between the severity of several rhinopaties and the presence of CLCs in NC samples, which is strictly correlated with an eosinophiles and mast cells infiltration. As a matter of fact, rhinopaties with a mixed eosinophilic-mast cell inflammatory infiltrate, characterized by the presence of abundant CLCs, show a worse prognosis and a higher risk of relapse. This could have important therapeutic implications, since the treatments available today could be exploited to target both eosinophils and mast cells, to reduce the damage induced by CLCs.
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