内皮祖细胞和Notch-1信号作为肺气肿中肺泡内皮再生的标志物
Endothelial Progenitor Cells and Notch-1 Signaling as Markers of Alveolar Endothelium Regeneration in Pulmonary Emphysema.
作者信息
Skurikhin E G, Krupin V A, Pershina O V, Pan E S, Ermolaeva L A, Pakhomova A V, Rybalkina O Yu, Ermakova N N, Khmelevskaya E S, Vaizova O E, Zhukova M S, Pozdeeva A S, Skurikhina V E, Goldberg V E, Dygai A M
机构信息
E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia.
出版信息
Bull Exp Biol Med. 2018 Dec;166(2):201-206. doi: 10.1007/s10517-018-4314-4. Epub 2018 Nov 28.
We studied the effects of elastase, cigarette smoke extract, D-galactosamine hydrochloride, and tyrosine kinase inhibitor SU5416 on endothelial progenitor cells and angiogenesis precursors, as well as on Notch-1 expression by immature endothelial cells. Simultaneously with pulmonary emphysema, different damaging factors with diverse mechanisms of action caused pathological changes in the microvascular network of the lungs and destroyed the alveolar endothelium in female C57Bl/6 mice. D-galactosamine hydrochloride disturbed mobilization of endothelial progenitor cells expressing VEGFR (CD45-CD309) and angiogenesis progenitors (CD45CD309CD117) and their migration into emphysema expanded lungs. Elastase inhibited VEGFR-expressing endothelial progenitor cells, while cigarette smoke extract inhibited cells with CD45CD31CD34 phenotype. In pulmonary emphysema provoked by elastase or D-galactosamine hydrochloride, angiogenesis was provided by endothelial cells with CD45CD31CD34 phenotype, whereas in emphysema modeled with SU5416 or cigarette smoke extract, it was provided by the endothelial VEGFR-expressing cells and mature CD31 endothelial cells, respectively. Replenishment of immature endothelial cells damaged by elastase and SU5416 involved Notch-1 angiogenesis precursors and Notch-1 endothelial progenitor cells with VEGFR.
我们研究了弹性蛋白酶、香烟烟雾提取物、盐酸D-半乳糖胺和酪氨酸激酶抑制剂SU5416对内皮祖细胞和血管生成前体细胞的影响,以及对未成熟内皮细胞Notch-1表达的影响。在雌性C57Bl/6小鼠中,与肺气肿同时发生的是,具有不同作用机制的不同损伤因素导致肺部微血管网络发生病理变化,并破坏了肺泡内皮。盐酸D-半乳糖胺干扰了表达VEGFR的内皮祖细胞(CD45-CD309)和血管生成前体细胞(CD45CD309CD117)的动员及其向肺气肿扩张肺组织的迁移。弹性蛋白酶抑制表达VEGFR的内皮祖细胞,而香烟烟雾提取物抑制具有CD45CD31CD34表型的细胞。在由弹性蛋白酶或盐酸D-半乳糖胺诱发的肺气肿中,血管生成由具有CD45CD31CD34表型的内皮细胞提供,而在用SU5416或香烟烟雾提取物构建的肺气肿模型中,血管生成分别由表达VEGFR的内皮细胞和成熟的CD31内皮细胞提供。补充被弹性蛋白酶和SU5416损伤的未成熟内皮细胞涉及Notch-1血管生成前体细胞和具有VEGFR的Notch-1内皮祖细胞。