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DNA repair and cell synthesis proteins: immunohistochemical expression and correlation with recurrence-regrowth in meningiomas.
Journal of Molecular Histology ( IF 3.2 ) Pub Date : 2020-07-02 , DOI: 10.1007/s10735-020-09892-7
Camila Batista de Oliveira Silva 1, 2 , Bárbara Roberta Ongaratti 1, 2 , Geraldine Trott 1, 2 , Bruna Araújo 1 , Carolina Soares Leães Rech 1 , Lígia Barbosa Coutinho 1, 2 , Nelson Pires Ferreira 1 , Miriam da Costa Oliveira 1, 2 , Júlia Fernanda Semmelmann Pereira-Lima 1, 2
Affiliation  

Meningiomas are considered the second most common neoplasm of the central nervous system in adults. Most of them are benign with slow growth, frequent in women and with a high recurrence rate. In tumors, DNA error repair processes lose efficacy, providing mutagenesis and genomic instability. This work evaluated the expression of proteins involved in cell synthesis (cyclin D1) and DNA errors repair (MUTYH, XPF, XPG) in meningiomas, relating them to clinical, tumor and survival variables. The study included 85 patients, with a mean age of 52 ± 13.3 years and most of them women (2:1 ratio). Sixty-seven cases were grade I (79%). Grade II tumors were independent predictors of recurrence-regrowth (HR: 2.8; p = 0.038). The high expression of cyclin D1 was associated with grade II (p = 0.001) and low MUTYH expression with grade I (p = 0.04). Strong expression of XPF and XPG was associated with grade II (p = 0.002; p < 0.001) and with recurrence-regrowth (p = 0.04; p = 0.003). Strong XPF expression was significantly related to large tumors (p = 0.03). An association of cyclin D1, MUTYH and XPF were found. Survival was not associated with the expression of any of the proteins studied. To know the role of DNA repair proteins and cell synthesis is important for understanding the processes of origin and tumor development. Grade II meningiomas and strong expression of XPF and XPG were predictors of recurrence or regrowth and may assist in clinical management, considering the high recurrence of meningiomas and the absence of consensus regarding treatment.

中文翻译:

DNA 修复和细胞合成蛋白:免疫组织化学表达和与脑膜瘤复发再生长的相关性。

脑膜瘤被认为是成人中枢神经系统第二常见的肿瘤。多为良性,生长缓慢,多见于女性,复发率高。在肿瘤中,DNA 错误修复过程失去效力,导致突变和基因组不稳定。这项工作评估了脑膜瘤中参与细胞合成(细胞周期蛋白 D1)和 DNA 错误修复(MUTYH、XPF、XPG)的蛋白质的表达,并将它们与临床、肿瘤和生存变量相关联。该研究包括 85 名患者,平均年龄为 52 ± 13.3 岁,其中大多数为女性(比例为 2:1)。67 例为 I 级(79%)。II 级肿瘤是复发再生长的独立预测因子(HR:2.8;p = 0.038)。细胞周期蛋白 D1 的高表达与 II 级相关 (p = 0.001),MUTYH 低表达与 I 级相关 (p = 0.04)。XPF 和 XPG 的强表达与 II 级(p = 0.002;p < 0.001)和复发-再生长(p = 0.04;p = 0.003)相关。强 XPF 表达与大肿瘤显着相关 (p = 0.03)。发现了细胞周期蛋白 D1、MUTYH 和 XPF 的关联。存活与所研究的任何蛋白质的表达无关。了解 DNA 修复蛋白和细胞合成的作用对于了解起源和肿瘤发展的过程很重要。II 级脑膜瘤和 XPF 和 XPG 的强表达是复发或再生长的预测因子,考虑到脑膜瘤的高复发率和治疗方面缺乏共识,可能有助于临床管理。强 XPF 表达与大肿瘤显着相关 (p = 0.03)。发现了细胞周期蛋白 D1、MUTYH 和 XPF 的关联。存活与所研究的任何蛋白质的表达无关。了解 DNA 修复蛋白和细胞合成的作用对于了解起源和肿瘤发展的过程很重要。II 级脑膜瘤和 XPF 和 XPG 的强表达是复发或再生长的预测因子,考虑到脑膜瘤的高复发率和治疗方面缺乏共识,可能有助于临床管理。强 XPF 表达与大肿瘤显着相关 (p = 0.03)。发现了细胞周期蛋白 D1、MUTYH 和 XPF 的关联。存活与所研究的任何蛋白质的表达无关。了解 DNA 修复蛋白和细胞合成的作用对于了解起源和肿瘤发展的过程很重要。II 级脑膜瘤和 XPF 和 XPG 的强表达是复发或再生长的预测因子,考虑到脑膜瘤的高复发率和治疗方面缺乏共识,可能有助于临床管理。了解 DNA 修复蛋白和细胞合成的作用对于了解起源和肿瘤发展的过程很重要。II 级脑膜瘤和 XPF 和 XPG 的强表达是复发或再生长的预测因子,考虑到脑膜瘤的高复发率和治疗方面缺乏共识,可能有助于临床管理。了解 DNA 修复蛋白和细胞合成的作用对于了解起源和肿瘤发展的过程很重要。II 级脑膜瘤和 XPF 和 XPG 的强表达是复发或再生长的预测因子,考虑到脑膜瘤的高复发率和治疗方面缺乏共识,可能有助于临床管理。
更新日期:2020-07-02
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