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Features of airway remodeling in different types of Chinese chronic rhinosinusitis are associated with inflammation patterns

机译:不同类型的中国慢性鼻-鼻窦炎的气道重塑特征与炎症模式有关

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Background The remodeling patterns in different types of chronic rhinosinusitis (CRS) have rarely been compared, particularly the difference between eosinophilic and noneosinophilic CRS with nasal polyps (CRSwNP). Moreover, whether there is a link between remodeling and inflammation remains controversial. Objective To directly compare the remodeling features of different CRS and to explore their relationship with inflammation in Chinese patients. Methods Histologic characteristics of surgical samples were analyzed in 33 controls, 72 eosinophilic and 76 noneosinophilic CRSwNP, and 72 CRS without nasal polyps (CRSsNP) patients. Tissue samples from 38 controls, 26 eosinophilic and 26 noneosinophilic CRSwNP, and 32 CRSsNP patients were measured for mRNA and/or protein expression of profibrotic growth factors, metalloproteinases (MMPs), tissue inhibitor of metalloproteinases (TIMPs), hypoxia-inducible factor (HIF)-1α, interleukin (IL)-8, eosinophil cationic protein (ECP), and myeloperoxidase (MPO). Results The amount of collagen decreased, whereas the edema scores increased, from CRSsNP to noneosinophilic CRSwNP and to eosinophilic CRSwNP. Transforming growth factor (TGF)-β2 protein levels were enhanced in CRSsNP compared with CRSwNP. TIMP-4 protein levels decreased in eosinophilic CRSwNP compared with noneosinophilic CRSwNP and CRSsNP. The number of neutrophils decreased from CRSsNP to noneosinophilic CRSwNP and to eosinophilic CRSwNP. ECP levels were only up-regulated in eosinophilic CRSwNP. ECP levels and neutrophil number correlated positively with the severity of edema and fibrosis, respectively. Neutrophils were the major sources of TGF-β2 in CRSsNP and noneosinophilic CRSwNP. Conclusion Distinct remodeling patterns are revealed for different types of CRS, particularly for eosinophilic and noneosinophilic CRSwNP. Tissue remodeling associates with inflammation in CRS.
机译:背景很少比较不同类型的慢性鼻鼻窦炎(CRS)的重塑模式,特别是嗜酸性和非嗜酸性鼻息肉(RSSwNP)CRS之间的差异。此外,重塑与炎症之间是否存在联系尚存争议。目的直接比较不同CRS的重塑特征,探讨其与中国患者炎症反应的关系。方法分析33例对照,72例嗜酸性和76例非嗜酸性CRSwNP以及72例无鼻息肉(CRSsNP)患者的手术标本的组织学特征。测量了38例对照,26例嗜酸性和26例非嗜酸性CRSwNP患者和32例CRSsNP患者的组织样品中纤维化生长因子,金属蛋白酶(MMP),金属蛋白酶组织抑制剂(TIMP),低氧诱导因子(HIF)的mRNA和/或蛋白表达)-1α,白介素(IL)-8,嗜酸性粒细胞阳离子蛋白(ECP)和髓过氧化物酶(MPO)。结果从CRSsNP到非嗜酸性CRSwNP和至嗜酸性CRSwNP,胶原蛋白含量减少,而水肿评分却增加。与CRSwNP相比,CRSsNP中的转化生长因子(TGF)-β2蛋白水平升高。与非嗜酸性CRSwNP和CRSsNP相比,嗜酸性CRSwNP中TIMP-4蛋白水平降低。中性粒细胞的数量从CRSsNP减少到非嗜酸性CRSwNP和嗜酸性CRSwNP。 ECP水平仅在嗜酸性CRSwNP中上调。 ECP水平和中性粒细胞数量分别与水肿和纤维化的严重程度呈正相关。中性粒细胞是CRSsNP和非嗜酸性CRSwNP中TGF-β2的主要来源。结论对于不同类型的CRS,尤其是嗜酸性和非嗜酸性CRSwNP,存在明显的重塑模式。组织重塑与CRS中的炎症有关。

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