The Laryngoscope · 2018
Increased accumulation of CD30 ligand-positive mast cells associates with eosinophilic inflammation in nasal polyps.
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Zhai Guan-Ting, Li Jing-Xian, Zhang Xin-Hao, Liao Bo, Lu Xiang, Liu Zheng
Аннотация
OBJECTIVE: Activation of mast cells associates with eosinophilic inflammation in chronic rhinosinusitis with nasal polyps (CRSwNP). The disease-specific mast cell-triggering mechanisms apart from immunoglobulin E are poorly understood in CRSwNP. CD30L/CD30 are members of the tumor necrosis factor/receptor superfamily and display immune modulatory function on mast cells. The aim of this study was to explore the expression and function of CD30 and CD30L in CRSwNP.
METHODS: The mRNA expression of CD30 and CD30L was analyzed by real-time polymerase chain reaction. The cellular expression of CD30L was determined by immunofluorescence staining. The soluble CD30 levels in nasal tissues were detected by enzyme-linked immunosorbent assay. HMC-1 cells, a human mast cell line, were cultured and stimulated with CD30.
RESULTS: Compared with control tissues, CD30 mRNA expression levels were increased in eosinophilic polyps, and soluble CD30 protein levels were upregulated in both eosinophilic and noneosinophilic polyps with a greater increase in eosinophilic type. CD30 was expressed by T cells and B cells in nasal polyps. The CD30L mRNA expression levels and the number of CD30L+ cells and CD30L+ tryptase+ mast cells were increased in eosinophilic polyps but not in noneosinophilic polyps as compared with control tissues. Mast cells accounted for 60% of CD30L+ cells in eosinophilic polyps. CD30 induced HMC-1 cells to produce interleukin (IL)-4 and IL-13 without degranulation. Mast cells expressed IL-4 and IL-13 in eosinophilic polyps. The number of CD30L+ tryptase+ mast cells was positively correlated with the number of eosinophils and total inflammatory cells in eosinophilic polyps.
CONCLUSION: CD30/CD30L-mediated mast cell activation may promote the eosinophilic inflammation in CRSwNP.
LEVEL OF EVIDENCE: NA Laryngoscope, 129:E110-E117, 2019.
METHODS: The mRNA expression of CD30 and CD30L was analyzed by real-time polymerase chain reaction. The cellular expression of CD30L was determined by immunofluorescence staining. The soluble CD30 levels in nasal tissues were detected by enzyme-linked immunosorbent assay. HMC-1 cells, a human mast cell line, were cultured and stimulated with CD30.
RESULTS: Compared with control tissues, CD30 mRNA expression levels were increased in eosinophilic polyps, and soluble CD30 protein levels were upregulated in both eosinophilic and noneosinophilic polyps with a greater increase in eosinophilic type. CD30 was expressed by T cells and B cells in nasal polyps. The CD30L mRNA expression levels and the number of CD30L+ cells and CD30L+ tryptase+ mast cells were increased in eosinophilic polyps but not in noneosinophilic polyps as compared with control tissues. Mast cells accounted for 60% of CD30L+ cells in eosinophilic polyps. CD30 induced HMC-1 cells to produce interleukin (IL)-4 and IL-13 without degranulation. Mast cells expressed IL-4 and IL-13 in eosinophilic polyps. The number of CD30L+ tryptase+ mast cells was positively correlated with the number of eosinophils and total inflammatory cells in eosinophilic polyps.
CONCLUSION: CD30/CD30L-mediated mast cell activation may promote the eosinophilic inflammation in CRSwNP.
LEVEL OF EVIDENCE: NA Laryngoscope, 129:E110-E117, 2019.