J Endod:人尖周损伤中过表达亲环素A

2019-10-31 lishiting MedSci原创

亲环素A为胞质蛋白,参与多种生物学功能,如:炎症、组织重塑、肿瘤发生和血管疾病。人根尖周损伤由细菌感染而引发。然而,CypA在人尖周损伤中的表达情况还未可知。这篇研究的目的是为了评估CypA在人尖周损伤中的表达以及CypA在炎症发生发展过程中与血管再生、炎症细胞浸润和牙槽骨降解之间可能的关系。

亲环素A为胞质蛋白,参与多种生物学功能,如:炎症、组织重塑、肿瘤发生和血管疾病。人根尖周损伤由细菌感染而引发。然而,CypA在人尖周损伤中的表达情况还未可知。这篇研究的目的是为了评估CypA在人尖周损伤中的表达以及CypA在炎症发生发展过程中与血管再生、炎症细胞浸润和牙槽骨降解之间可能的关系。

研究共纳入58例人的根尖周组织,包括根尖周肉芽肿(PGs, n = 28), 根尖囊肿(RCs, n = 24)和健康对照组织(control group, n = 6)。固定样本并分析对比。检测CypA的表达情况并通过免疫组化对不同横截面进行分析。免疫荧光双标定位CypA和CD34、CypA与基质金属蛋白酶9 (MMP-9)以及CD147与MMP-9的表达。

结果显示,与对照组相比,CypA显著过表达于RC和PG组(P < .05),而RC和PG组之间无显著性差异(P > .05)。CypA表达阳性的细胞主要为淋巴细胞、内皮细胞、上皮细胞和浆细胞。CypA和CD34的荧光双标分析显示,在尖周损伤过程中CypA与血管再生相关联。MMP-9与CypA和CD147共定位表明,CypA可能与CD147共定位,它可能与人尖周损伤周围软硬组织降解相关联。

结论:在尖周损伤进展过程中,CypA可能与炎症细胞浸润的增加、血管再生加速和牙槽骨降解存在一定的关联。

原始出处:

Wang Y, Liu G, et al. Overexpression of Cyclophilin A in Human Periapical Lesions. J Endod. 2019 Oct 14. pii: S0099-2399(19)30662-4. doi: 10.1016/j.joen.2019.09.006.

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