Hepatitis A Virus Cellular Receptor 2

甲型肝炎病毒细胞受体 2
  • 文章类型: Meta-Analysis
    骨肉瘤是儿童和青少年中最常见的原发性骨恶性肿瘤。细胞因子对骨肉瘤预后的影响已被研究和报道。这项荟萃分析旨在评估细胞因子作为骨肉瘤生物标志物的预后价值。包括PubMed在内的数据库,Embase,和Cochrane文库被搜索以研究细胞因子在骨肉瘤中的预后价值。从符合条件的研究中,总生存期(OS)数据,无病生存,提取无转移生存期(MFS)。计算集合风险比(HR)和95%置信区间(CI)。本分析共纳入11项研究,涉及755名患者。肿瘤中巨噬细胞移动抑制因子(MIF)的高表达与OS缩短(HR=2.01,95%CI:1.18~3.42,P=0.010)和MFS(HR=2.51,95%CI:1.47~4.01,P=0.001)显著相关。血清中T细胞免疫球蛋白和粘蛋白结构域3(Tim-3)水平升高与骨肉瘤患者疾病进展风险增加相关(HR=3.14,95%CI:2.88-3.03,P<0.001)。然而,白细胞介素6(IL-6)和肿瘤坏死因子与骨肉瘤的预后无关。由于缺乏研究,其他相关细胞因子[干扰素α/β受体,组织因子,巨噬细胞抑制细胞因子1(MIC-1),和IL-23]不能合并。总之,肿瘤中的MIF水平和血清中的Tim-3水平可能是骨肉瘤预后不良的潜在生物标志物。为了确认这一发现并将这些生物标志物应用于临床应用,额外的大规模,需要高质量的研究。
    Osteosarcoma is the most prevalent type of primary bone malignancy in children and adolescents. The effect of cytokines on osteosarcoma prognosis has been studied and reported. This meta-analysis aimed to assess the prognostic value of cytokines as osteosarcoma biomarkers. Databases including PubMed, Embase, and Cochrane Library were searched for studies on the prognostic value of cytokines in osteosarcoma. From the eligible studies, data on overall survival (OS), disease-free survival, and metastasis-free survival (MFS) were extracted. Pooled hazard ratios (HRs) and 95% confidence intervals (CIs) were calculated. A total of 11 studies involving 755 patients were included in this analysis. High macrophage migration inhibitory factor (MIF) expression in tumors was significantly associated with shortened OS (HR = 2.01, 95% CI: 1.18-3.42, P = 0.010) and MFS (HR = 2.51, 95% CI: 1.47-4.01, P = 0.001). Elevated T cell immunoglobulin and mucin domain-3 (Tim-3) levels in serum correlated with increased risk of disease progression in patients with osteosarcoma (HR = 3.14, 95% CI: 2.88-3.03, P < 0.001). However, interleukin 6 (IL-6) and tumor necrosis factor were not substantially associated with osteosarcoma prognosis. Owing to a paucity of research, other relevant cytokines [interferon-α/β receptor, tissue factor, macrophage inhibitory cytokine 1 (MIC-1), and IL-23] could not be combined. In conclusion, MIF levels in tumors and Tim-3 levels in serum can be potential biomarkers of poor prognosis in osteosarcoma. To confirm this finding and implement these biomarkers into clinical applications, additional large-scale, high-quality studies are needed.
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  • 文章类型: Journal Article
    子痫前期是一种妊娠特异性疾病,其特征是胎盘异常,内皮功能障碍,和全身性炎症。一些研究表明,母体的免疫系统,这对于通过确保母胎耐受性来维持妊娠至关重要,先兆子痫患者受到破坏。除了不同的免疫细胞,免疫检查点分子,如程序性细胞死亡蛋白1/程序性死亡配体1(PD-1/PD-L1系统)和T细胞免疫球蛋白和含粘蛋白结构域的蛋白3/半乳糖凝集素-9(TIM-3/Gal-9系统)是维持促炎和抗炎信号之间平衡的关键因素.因此,清楚了解这些免疫检查点分子在先兆子痫中的作用至关重要.这篇综述讨论了这两种免疫检查点系统在妊娠中的作用及其在先兆子痫中的变化。
    Preeclampsia is a pregnancy-specific disease which is characterized by abnormal placentation, endothelial dysfunction, and systemic inflammation. Several studies have shown that the maternal immune system, which is crucial for maintaining the pregnancy by ensuring maternal-fetal-tolerance, is disrupted in preeclamptic patients. Besides different immune cells, immune checkpoint molecules such as the programmed cell death protein 1/programmed death-ligand 1 (PD-1/PD-L1 system) and the T-cell immunoglobulin and mucin domain-containing protein 3/Galectin-9 (TIM-3/Gal-9 system) are key players in upholding the balance between pro-inflammatory and anti-inflammatory signals. Therefore, a clear understanding about the role of these immune checkpoint molecules in preeclampsia is essential. This review discusses the role of these two immune checkpoint systems in pregnancy and their alterations in preeclampsia.
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  • 文章类型: Journal Article
    The incidence of hematological malignant tumor is increasing year by year, and seriously affecting the human health. In addition to the traditional radiation and chemotherapy, immunotherapy has achieved a certain effect in the treatment of blood tumor, but it is limited by exhaustion of CD8+ T cell. The exhaustion of CD8+ T cells is mainly related to the activation of some immune checkpoint inhibitors, such as (Tim3), programmed death 1 (PD-1), cytotoxic T-lymphocyte-associated protein 4 (CTLA-4), etc. Among them, Tim3 is getting more and more attention. The combination of Tim3 and its ligand galectin-9 produced a strong cellular immunosuppressive effect. Tim3 has been proved to be associated with CD8+ T cell exhaustion in many tumors. In this review, the application of Tim3/galectin-9 in hematologic tumors is briefly summarized so as to provide theoretical basis for clinical diagnosis and treatment of these diseases.
    UNASSIGNED: Tim3/galectin-9在血液系统肿瘤中的研究进展.
    UNASSIGNED: 血液系统肿瘤发病率呈逐年增高趋势,严重影响人类的健康。除传统放化疗外,免疫治疗已在血液肿瘤的治疗中取得了一定的疗效,但是却受到CD8+T细胞衰竭的限制,而CD8+T细胞衰竭主要与一些免疫检查点抑制剂的激活相关,如T细胞免疫球蛋白和粘蛋白域3(Tim3)、程序性死亡-1(PD-1)、细胞毒性T淋巴细胞抗原4(CTLA-4)等。其中,Tim3受到了越来越多的关注。Tim3与它的配体半乳糖凝集素-9(galectin-9)结合,产生了很强的细胞免疫抑制作用。在许多肿瘤中,Tim3被认为与CD8+T细胞衰竭有关。本文拟对Tim3/galectin-9在血液系统肿瘤中的应用进展作一综述,为临床诊治该类疾病提供理论依据.
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  • 文章类型: Journal Article
    Previous studies have reported that T cell immunoglobulin domain and mucin domain-3 (TIM-3) 574T>G and 1516G>T are associated with the risk of asthma. However, the results are inconsistent due to the small sample size and varied age in studies. We performed this meta-analysis to systematically evaluated the effect of TIM-3 574T>G and 1516G>T genetic polymorphisms on asthma. Eligible articles that reported an association between TIM-3 574T>G and 1516G>T genetic polymorphisms and asthma were searched in PubMed, Medline, EMBASE, Google Scholar, and China National Knowledge Infrastructure up to April 2020. Random or fixed-effects models were used to calculate the summary of odds ratios (ORs) and 95% confidence intervals (CIs) to detect any potential associations between TIM-3 genetic polymorphisms and asthma. Subgroup and sensitivity analyses were performed to assess the potential sources of heterogeneity and the robustness of the pooled estimation. Publication bias was analyzed using the Egger test. A total of 11 case-control studies including 2077 asthma patients and 2122 control subjects were finally analyzed (published data form 2004-2018). The pooled results indicated that TIM-3 574T>G genetic polymorphisms were significantly associated with an increased risk of asthma under the dominant model (GG vs. GT +TT: ORs=2.26, 95% CI 1.09-4.69) and allele model (G vs T: ORs=2.60, 95% CI 1.20-5.64). However, no significant associations between TIM-3 1516G>T genetic polymorphisms with asthma in any model was found. No evidence of publication bias was observed.  Our study indicates that TIM-3 574T>G genetic polymorphisms were associated with increased risk of asthma and the TIM-3 1516G>T genetic polymorphisms may not be correlated with asthma.
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  • 文章类型: Journal Article
    TIM家族蛋白在不同的免疫细胞如树突状细胞上表达,巨噬细胞,1型和2型T辅助(Th)细胞。因此,它们有能力促进各种细胞内信号和免疫反应,重要的是调节Th1和Th17细胞的分化,在对抗炎症和自身免疫性疾病中起着重要作用。TIM家族基因多态性与类风湿关节炎(RA)的相关性已被频繁研究。然而,调查结果并不完全一致。因此,我们进行了本荟萃分析,以检查RA与以下TIM家族基因多态性之间的关联:rs41297579,rs1036199,rs10515746和rs7700944.
    对Scopus的系统搜索,PubMed,和WebofScience数据库进行到2018年12月。在不同的可能遗传模型下计算了组合比值比(OR)及其相应的95%置信区间(CI)。
    本荟萃分析共纳入8项病例对照研究。结果表明RA与显性TIM-3rs1036199多态性(OR,1.93,95%CI,1.43-2.61)和等位基因模型(OR,1.74,95%CI,1.31-2.30)。其他检查的多态性均未表明与RA存在显着关联。
    目前的荟萃分析显示,TIM-3rs1036199多态性可能赋予RA易感性。需要进一步的研究来重申我们的发现。
    TIM-family proteins are expressed on different immune cells such as dendritic cells, macrophages, type 1 and 2 T helper (Th) cells. Therefore, they have the ability to contribute to the various intracellular signals and immune responses, importantly the regulation of Th1 and Th17 cell differentiation, which plays a remarked role in fight against inflammatory and autoimmune diseases. Association of TIM family gene polymorphisms with rheumatoid arthritis (RA) has been frequently investigated. The findings however are not entirely consistent. Therefore, we carried out the present meta-analysis to examine the association between RA and the following TIM family gene polymorphisms: rs41297579, rs1036199, rs10515746, and rs7700944.
    A systematic search of Scopus, PubMed, and Web of Science databases was conducted through December 2018. Combined odds ratios (OR) with their corresponding 95% confidence intervals (CI) were calculated under different possible genetic models.
    A total of eight case-control studies were included in the present meta-analysis. The results demonstrated significant association of RA with TIM-3 rs1036199 polymorphism under dominant (OR, 1.93, 95% CI, 1.43-2.61) and allelic models (OR, 1.74, 95% CI, 1.31-2.30). None of the other examined polymorphisms indicated significant association with RA.
    The present meta-analysis revealed that the TIM-3 rs1036199 polymorphism might confer susceptibility to RA. Further studies are required to reassert our findings.
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  • 文章类型: Journal Article
    Accumulated studies have demonstrated the important role of T cell immunoglobulin- and mucin-domain-containing molecule-3 (TIM-3) in various solid tumors and indicated its correlation with patients\' survival. To further verify the prognostic significance of TIM-3 in cancer patients and its correlation with tumor, we performed this meta-analysis including seven studies searched from PubMed, Web of Science, and Embase till July 2016. A total of 869 patients were used to analyze the association between TIM-3 expression and patients\' overall survival (OS). The pooled results showed that higher expression of TIM-3 was significantly correlated to shorter OS (7 studies, HR=1.89; 95% CI: 1.38-2.57; P< 0.001). In addition, higher TIM-3 expression was associated with advanced tumor stage (3 studies, III/IV vs. I/II, RR=2.02; 95% CI: 1.45-2.81; P< 0.001). In conclusion, our study highlights the role of TIM-3 as a potential prognostic marker and a promising therapeutic target in solid tumors.
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  • 文章类型: Journal Article
    The main mechanism of tumor immune suppression is due to the T cell exhaustion which is mediated by abnormal expression of T-cell immunosuppressive receptors in immune cells. Blocking these molecules may restore partial or all functions of T cells. This article reviews the advance on the role of the newly discovered T cell immuno-suppressive receptors such as TIM-3, LAG-3 and BTLA, including their mediated T cell-immune tolerance and the study of targeted immunotherapy in hematological malignancies, so as to provide the new strategy for immune-targeted therapy for hematological malignancies.
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