Innate-like B cells （ILBs） are heterogeneous populations of unconventional B cells with innate sensing and responding properties. ILBs in mice are composed of B1 cells, marginal zone （MZ） B cells and other related...Innate-like B cells （ILBs） are heterogeneous populations of unconventional B cells with innate sensing and responding properties. ILBs in mice are composed of B1 cells, marginal zone （MZ） B cells and other related B cells. ILBs maintain natural IgM levels at steady state, and after innate activation, they can rapidly acquire immune regulatory activities through the secretion of natural IgM and IL-IO. Thus, ILBs constitute an important source of IL-lO-producing regulatory B cells （Bregs）, which have been shown to play critical roles in autoimmunity, inflammation and infection. The present review highlights the latest advances in the field of ILBs and focuses on their regulatory functions. Understanding the regulatory activities of ILBs and their underlying mechanisms could open new avenues in manipulating their functions in inflammatory, infectious and other relevant diseases.展开更多
目的:探讨天然CD25和FOXP3抗体在非小细胞肺癌(NSCLC)患者血浆表达变化的临床意义及其作为诊断标志物的潜能。方法:选取青岛大学附属青岛市立医院胸外科首次确诊且未经任何治疗的NSCLC患者200例及同期性别、年龄、吸烟史相匹配的健康志...目的:探讨天然CD25和FOXP3抗体在非小细胞肺癌(NSCLC)患者血浆表达变化的临床意义及其作为诊断标志物的潜能。方法:选取青岛大学附属青岛市立医院胸外科首次确诊且未经任何治疗的NSCLC患者200例及同期性别、年龄、吸烟史相匹配的健康志愿者190例,收集两组血液样本。基于CD25及FOXP3分子结构,利用表位预测软件(http://www.iedb.org)设计并合成3条线性抗原肽(即CD25a、CD25b、FOXP3)并外送化工公司合成,通过自行建立的优化ELISA检测方法,检测NSCLC患者及健康对照组血浆CD25及FOXP3抗体的表达水平,并分析CD25及FOXP3抗体的表达与临床病理特征之间的关系。同时绘制ROC曲线,评估CD25及FOXP3抗体对不同TNM分期NSCLC的诊断价值。结果:NSCLCⅡ~Ⅳ期患者血浆CD25a、FOXP3抗体的表达较健康对照组显著增加(0.66±0.18 vs 0.52±0.17,P<0.001;0.60±0.23 vs 0.53±0.25,P<0.001),NSCLC患者血浆CD25b抗体的表达较健康对照显著降低,这一变化在Ⅰ~Ⅱ期患者中尤为显著(0.37±0.21 vs 0.43±0.22,P<0.001)。NSCLC患者血浆CD25a抗体的表达与性别、病理类型、淋巴结转移有关(P均<0.05),与年龄、肿瘤分化程度、肿瘤大小、TNM分期、吸烟史无关(P均>0.05)。CD25b抗体的表达与性别、年龄、肿瘤分化程度有关(P均<0.05),与病理类型、淋巴结转移、肿瘤大小、TNM分期、吸烟史无关(P均>0.05),而FOXP3抗体的表达仅与肿瘤分化程度有关(P<0.05)。对CD25、FOXP3抗体诊断NSCLC的效能评估,CD25a曲线下面积为0.727(95%CI:0.677~0.778),最佳截断值为0.55,敏感度为77%,特异度为64%;CD25b曲线下面积为0.601(95%CI:0.545~0.657),最佳截断值为0.35,敏感度为62%,特异度为57%;FOXP3曲线下面积为0.613(95%CI:0.557~0.669),最佳截断值为0.54,敏感度为58%,特异度为65%。结论:检测CD25a天然抗体可辅助NSCLC的早期诊断;血浆CD25b天然抗体在早期NSCLC(Ⅰ+Ⅱ期)表达降低,对预测早期NSCLC有一定价值。展开更多
基金This work was supported in part by grants from National Natural Science Foundation of China （31270961） and Shanghai Science and Technology Development Funds （12QA1403600）. The author would like to thank Mr Yiyuan Fang for his help with figure preparation and Mr Brian Mozeleski for his critical reading.
文摘Innate-like B cells （ILBs） are heterogeneous populations of unconventional B cells with innate sensing and responding properties. ILBs in mice are composed of B1 cells, marginal zone （MZ） B cells and other related B cells. ILBs maintain natural IgM levels at steady state, and after innate activation, they can rapidly acquire immune regulatory activities through the secretion of natural IgM and IL-IO. Thus, ILBs constitute an important source of IL-lO-producing regulatory B cells （Bregs）, which have been shown to play critical roles in autoimmunity, inflammation and infection. The present review highlights the latest advances in the field of ILBs and focuses on their regulatory functions. Understanding the regulatory activities of ILBs and their underlying mechanisms could open new avenues in manipulating their functions in inflammatory, infectious and other relevant diseases.
文摘目的:探讨天然CD25和FOXP3抗体在非小细胞肺癌(NSCLC)患者血浆表达变化的临床意义及其作为诊断标志物的潜能。方法:选取青岛大学附属青岛市立医院胸外科首次确诊且未经任何治疗的NSCLC患者200例及同期性别、年龄、吸烟史相匹配的健康志愿者190例,收集两组血液样本。基于CD25及FOXP3分子结构,利用表位预测软件(http://www.iedb.org)设计并合成3条线性抗原肽(即CD25a、CD25b、FOXP3)并外送化工公司合成,通过自行建立的优化ELISA检测方法,检测NSCLC患者及健康对照组血浆CD25及FOXP3抗体的表达水平,并分析CD25及FOXP3抗体的表达与临床病理特征之间的关系。同时绘制ROC曲线,评估CD25及FOXP3抗体对不同TNM分期NSCLC的诊断价值。结果:NSCLCⅡ~Ⅳ期患者血浆CD25a、FOXP3抗体的表达较健康对照组显著增加(0.66±0.18 vs 0.52±0.17,P<0.001;0.60±0.23 vs 0.53±0.25,P<0.001),NSCLC患者血浆CD25b抗体的表达较健康对照显著降低,这一变化在Ⅰ~Ⅱ期患者中尤为显著(0.37±0.21 vs 0.43±0.22,P<0.001)。NSCLC患者血浆CD25a抗体的表达与性别、病理类型、淋巴结转移有关(P均<0.05),与年龄、肿瘤分化程度、肿瘤大小、TNM分期、吸烟史无关(P均>0.05)。CD25b抗体的表达与性别、年龄、肿瘤分化程度有关(P均<0.05),与病理类型、淋巴结转移、肿瘤大小、TNM分期、吸烟史无关(P均>0.05),而FOXP3抗体的表达仅与肿瘤分化程度有关(P<0.05)。对CD25、FOXP3抗体诊断NSCLC的效能评估,CD25a曲线下面积为0.727(95%CI:0.677~0.778),最佳截断值为0.55,敏感度为77%,特异度为64%;CD25b曲线下面积为0.601(95%CI:0.545~0.657),最佳截断值为0.35,敏感度为62%,特异度为57%;FOXP3曲线下面积为0.613(95%CI:0.557~0.669),最佳截断值为0.54,敏感度为58%,特异度为65%。结论:检测CD25a天然抗体可辅助NSCLC的早期诊断;血浆CD25b天然抗体在早期NSCLC(Ⅰ+Ⅱ期)表达降低,对预测早期NSCLC有一定价值。
