首页> 外文期刊>Journal of clinical neuroscience: official journal of the Neurosurgical Society of Australasia >Expressions of angiogenesis associated matrix metalloproteinases and extracellular matrix proteins in cerebral vascular malformations.
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Expressions of angiogenesis associated matrix metalloproteinases and extracellular matrix proteins in cerebral vascular malformations.

机译:血管生成相关基质金属蛋白酶和细胞外基质蛋白在脑血管畸形中的表达。

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摘要

This study aimed to compare cerebral arteriovenous malformations (cAVM) and cerebral cavernous malformations (CCM) with regard to the immunohistochemical expressions of matrix metalloproteinases (MMP) and selected extracellular matrix (ECM) proteins, which have a role in the regulation of angiogenesis. Fresh-frozen surgical specimens from patients with cAVM (n=14) and CCM (n=15) were immunohistochemically stained with antibodies for MMP-2, MMP-9, laminin, fibronectin and tenascin. To compare cAVM and CCM, expression of each protein was graded using a four-point scoring system for each histological layer of the lesion. MMP-2 and MMP-9 were more strongly expressed in the vascular walls of CCMs compared to cAVMs for all comparable layers: endothelium, subendothelium and the perivascular space. The stronger expression of MMP and other EMP associated with early angiogenesis in CCMs compared to AVMs may support the hypothesis that CCMs occur at earlier embryogenic stages than AVMs.
机译:这项研究旨在比较脑动静脉畸形(cAVM)和脑海绵状畸形(CCM)在基质金属蛋白酶(MMP)和细胞外基质(ECM)蛋白质的免疫组织化学表达中,它们在调节血管生成中起作用。用MMP-2,MMP-9,层粘连蛋白,纤连蛋白和肌腱蛋白的抗体对来自cAVM(n = 14)和CCM(n = 15)患者的新鲜冷冻手术标本进行免疫组织化学染色。为了比较cAVM和CCM,使用四点评分系统对病变的每个组织学层对每种蛋白质的表达进行分级。与cAVM相比,在所有可比较的层:内皮,内皮下层和血管周间隙中,CCM的血管壁中MMP-2和MMP-9的表达更强。与AVM相比,CCM中与早期血管生成相关的MMP和其他EMP的表达更强,这可能支持以下假设:CCM比AVM发生在更早的胚胎发生阶段。

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