Transforming growth factor-beta

转化生长因子 - β
  • 文章类型: Case Reports
    我们报告了一名31岁男性的临床表现和遗传筛查,该男性患有主动脉根部和升主动脉扩张,并且有主动脉夹层和猝死的阳性家族史。通过使用靶向多基因组分析鉴定了TGFβR2基因的剪接受体位点(c.1600-1G>T)中的新杂合变体。生物信息学工具预测c.1600-1G>T变体是通过改变影响前mRNA剪接的-1位置的受体剪接位点而致病的。这些数据证实,TGF-β通路基因的不同剪接可能是动脉瘤疾病中的一个重要过程,并强调了基因测序在识别高危患者中的实用性,以帮助更多患者的管理能够改善预后并最大程度地降低患有遗传性胸主动脉瘤和夹层的患者的护理成本。
    We report the clinical presentation and genetic screening of a 31-year-old man with dilatation of the aortic root and ascending aorta and a positive family history for aortic dissection and sudden death. A novel heterozygous variant in a splice acceptor site (c.1600-1G>T) of TGFβR2 gene was identified by using a targeted multi-gene panel analysis. Bioinformatics tools predicted that the c.1600-1G>T variant is pathogenic by altering acceptor splice site at - 1 position affecting pre-mRNA splicing. These data confirm that the diverging splicing in the TGF-β pathway genes may be an important process in aneurismal disease and emphasize the utility of genetic sequencing in the identification of high-risk patients for a more patient\'s management able to improve outcomes and minimize costs for the care of patients with heritable thoracic aortic aneurysm and dissection.
    [Box: see text].
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  • 文章类型: Journal Article
    已经提出上皮-间质转化(EMT)是几种疾病的发病机理。然而,EMT过程与牙周炎严重程度之间的关系尚未得到研究.
    本研究旨在定位和定量评估转化生长因子-β1(TGF-β1)的表达,vimentin和E-cadherin与牙周病患者牙龈的EMT过程相关,与halthy个体相比。
    36名参与者的牙龈组织样本分为2组:健康(对照组)组(n=9)和牙周炎组(n=27)。牙周炎组进一步细分为轻度,中度和重度牙周炎亚组(每个亚组9例)。对样品进行组织学染色,TGF-β的组织形态计量学分析和定量实时聚合酶链反应(RT-PCR)分析,波形蛋白和E-catherin.进行统计学和相关性分析。
    来自中度和重度牙周炎亚组的苏木精和伊红(H&E)染色切片显示上皮增生,与对照组相比,核周卤化和炎性细胞计数显着增加。在重度牙周炎亚组中,TGF-β1和波形蛋白的平均表达值最高,而最低的平均值记录在对照牙龈中。相反,E-catherin的表达在对照牙龈中平均值最高,而平均值最低的是严重牙周炎亚组。发现所有结果均具有统计学意义。相关性分析显示牙周炎的严重程度与TGF-β和波形蛋白的表达呈统计学正相关,而E-catherin的表达与牙周炎的严重程度之间存在统计学上显着的负相关。
    牙周炎的严重程度与EMT过程标志物(TGF-β和波形蛋白)的表达之间存在直接相关性。这种相关性表明EMT在牙周病的发病和预后中起重要作用。这项研究中提供的数据可以为使用抗EMT药物治疗牙周病打开大门。
    It has been proposed that epithelial-mesenchymal transition (EMT) is responsible for the pathogenesis of several diseases. However, the relationship between the EMT process and the severity of periodontitis has not been previously investigated.
    This study aimed to localize and quantitatively assess the expression of transforming growth factor-beta 1 (TGF-β1), vimentin and E-cadherin in correlation with the EMT process in human gingiva of periodontally diseased patients in comparison with halthy individuals.
    Gingival tissue samples from 36 participants were divided into 2 groups: the healthy (control) group (n = 9); and the periodontitis group (n = 27). The periodontitis group was further subclassified into mild, moderate and severe periodontitis subgroups (9 patients in each subgroup). The samples were subjected to histological staining, the histomorphometric analysis and the quantitative real-time polymerase chain reaction (RT‑PCR) analysis for TGF-β, vimentin and E-catherin. Statistical and correlation analyses were performed.
    The hematoxylin and eosin (H&E) stain sections from both the moderate and severe periodontitis subgroups showed epithelial hyperplasia, perinuclear haloing and a marked increase in the inflammatory cell count as compared to the control group. The highest mean TGF-β1 and vimentin expression values were recorded in the severe periodontitis subgroup, whereas the lowest mean values were recorded in the control gingiva. On the contrary, the expression of E-catherin had the highest mean value in the control gingiva, whereas the lowest mean value was recorded in the severe periodontitis subgroup. All results were found to be statistically significant. The correlation analysis revealed a statistically significant positive correlation between the severity of periodontitis and the expression of TGF-β and vimentin, while a statistically significant inverse correlation was found between the expression of E-catherin and the severity of periodontitis.
    There is a direct correlation between the severity of periodontitis and the expression of the EMT process markers (TGF-β and vimentin). This correlation indicates that EMT plays an important role in the pathogenesis and prognosis of periodontal disease. The data presented in this study could open the door for using anti-EMT agents in treating periodontal disease.
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  • DOI:
    文章类型: Journal Article
    转化生长因子-β(TGF-β)和IL-10的血清表达的改变已被认为在川崎病(KD)的发病机理中起作用。关于IL-10多态性与KD易感性和冠状动脉动脉瘤(CAA)的相关性存在不一致的报道。
    招募了110名KD儿科患者和140名健康个体,以调查TGF-βC/T密码子10(rs1982073)的单核苷酸多态性(SNP)的频率。C/G在密码子25(rs1800471)和IL-10A/G在-1082(rs1800896),C/Tat-819(rs1800871)和A/Cat-592(rs1800872)及其各自的基因型和单倍型。在MEDLINE和SCOPUS中使用白细胞介素10、转化生长因子β、和川崎病。此外,评估了先前研究KD中TGF-β和IL-10多态性的研究。使用ReviewManager5.1版软件进行荟萃分析。
    上述TGF-β或IL-10多态性中的等位基因或基因型变体与KD或CAA之间没有显着关联。唯一显著的单倍型变异是密码子10处的TC变异,而TGF-β多态性中的25个与较高的KD风险相关。770例患者总数与对照组的Meta分析1471名健康对照显示KD患者中任何IL-10遗传变异的频率没有差异,不管CAA的存在。
    TGF-β或IL-10的多态性与伊朗人群中KD的额外风险无关。IL-10-1082、-819和-592位点的多态性与KD无关,也不能预测冠状动脉瘤的形成.
    UNASSIGNED: Alteration in serum expression of Transforming Growth Factor-beta (TGF-β) and IL-10 have been suggested to play a role in the pathogenesis of Kawasaki Disease (KD). Inconsistent reports exist on the association of IL-10 polymorphisms with KD susceptibility and Coronary Artery Aneurysms (CAA).
    UNASSIGNED: A number of 110 paediatric patients with KD and 140 healthy individuals were recruited to investigate the frequency of Single Nucleotide Polymorphisms (SNPs) of TGF-β C/T at codon 10 (rs1982073), C/G at codon 25 (rs1800471) and IL-10 A/G at -1082 (rs1800896), C/T at -819 (rs1800871) and A/C at -592 (rs1800872) and their respective genotype and haplotypes. A comprehensive search was performed in MEDLINE and SCOPUS using the keywords of interleukin 10, transforming growth factor beta, and Kawasaki disease. Moreover, previous studies investigating the TGF-β and IL-10 polymorphisms in KD were evaluated. Review Manager Version 5.1 Software was used to perform meta-analysis.
    UNASSIGNED: There was no significant association between allelic or genotypic variants in the mentioned polymorphisms in TGF-β or IL-10 with KD or CAA. The only significant haplotypic variant was TC variant at codon 10, and 25 of TGF-β polymorphisms were associated with higher risk of KD. Meta-analysis of a total number of 770 patients vs. 1471 healthy controls showed no difference in the frequency of any of the IL-10 genetic variants in KD patients, regardless of the presence of CAA.
    UNASSIGNED: Polymorphisms of TGF-β or IL-10 are not associated with additional risk for KD in Iranian population. IL-10 polymorphisms at -1082, -819 and -592 positions are not associated with KD, nor do they predict coronary artery aneurysm formation.
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