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| 1 | Inflammation-induced CD69^+ Kupffer cell feedback inhibits T cell proliferation via membrane-bound TGF-β1显示文摘Kupffer cells,tissue-resident macrophage lineage cell,are enriched in vertebrate liver.The mouse F4/80^+ Kupffer cells have been subclassified into two subpopulations according to their phenotype and function:CD68^+ subpopulation with potent reactive oxygen species(ROS) production and phagocytic capacities,and CD11b^+ subpopulation with a potent capacity to produce T helper 1 cytokines.In addition,CD11b^+ Kupffer cells/macrophages may be migrated from the bone marrow or spleen,especially in inflammatory conditions of the liver.For analyzing diverse Kupffer cell subsets,we infected mice with Listeria monocytogenes and analyzed the phenotype variations of hepatic Kupffer cells.During L.monocytogenes infection,hepatic CD69^+ Kupffer cells were significantly induced and expanded,and CD69^+ Kupffer cells expressed higher level of CD11 b,and particularly high level of membrane-bound TGF-β1(mTGF-β1) but lower level of F4/80.We also found that clodronate liposome administration did not eliminate hepatic CD69^+ Kupffer cell subset.We consider the hepatic CD69^+ Kupffer cell population corresponds to CD11b^+Kupffer cells,the bone marrow-derived population.Hepatic CD69^+ Kupffer cells suppressed Ag-nonspecific and OVA-specific CD4 T cell proliferation through mTGF-β1 both in vitro and in vivo,meanwhile,they did not interfere with activation of CD4 T cells.Thus,we have identified a new subset of inflammation-induced CD69^+ Kupffer cells which can feedback inhibit CD4 T cell response via cell surface TGF-β1 at the late stage of immune response against infection.CD69^+ Kupffer cells may contribute to protect host from pathological injure by preventing overactivation of immune response. | Xiang Zhang Zhengping Jiang Yan Gu Yanfang Liu Xuetao Cao Yanmei Han | 2016 | Science China(Life Sciences)2016，59，12： | 5 |
| 2 | Rapid development of proteomics in China: from the perspective of the Human Liver Proteome Project and technology development显示文摘Proteomics focuses on the systematic identification and quantification of entire proteomes and interpretation of proteins’biological functions.During the last decade,proteomics in China has grown much faster than other research fields in life sciences.At the beginning of the second decade of the 21st century,the rapid development of high-resolution and high-speed mass spectrometry makes proteomics a powerful tool to study the mechanisms underlying physiological/pathological processes in organisms.This article provides a brief overview of proteomics technology development and representative scientific progress of the Human Liver Proteome Project in China over the past three years. | LI Ning XU Zhong Wei ZHAI Lin Hui LI Yan Chang FAN Feng Xu ZHENG Jun Jie XU Ping HE Fu Chu | 2014 | Science China(Life Sciences)2014，57，12： | 2 |
| 3 | 大鼠酒精性肝纤维化肝非实质细胞蛋白质组学研究显示文摘目的本文研究酒精对肝非实质细胞蛋白质表达的影响,以探讨酒精性肝纤维化的发病机制。方法大鼠酒精灌胃导致其发生肝纤维化。采用James染色法检测大鼠肝脏的病理学变化,通过Percoll密度梯度离心富集肝非实质细胞,再通过二维凝胶电泳(2DE)分离非实质细胞的蛋白质,经考马斯亮蓝(G250)染色,采用液相色谱串联质谱鉴定差异表达的蛋白质,并对部分差异蛋白质采用实时定量RT-PCR和免疫印迹的方法进行验证。对于2DE胶上的蛋白质点,采用两样本t检验的方法,对于RT-PCR分析,采用Mann-Whitney U检验进行统计分析。结果建立了酒精性肝纤维化大鼠模型,通过Percoll密度梯度离心纯化的非实质细胞中淋巴细胞、Kupffer细胞和内皮细胞分别富集了1.5、3.2和3.7倍。采用二维凝胶电泳法检测到了800多个蛋白质点,检测到具有2倍以上的差异蛋白质有26个,采用LC-MS法鉴定了21个非冗余蛋白质,对其中7个蛋白质的RT-PCR分析发现:ANXA3、CES3、ATPA和NDUFV2的mRNA水平和蛋白质组研究结果一致。结论本研究鉴定了一批与酒精性肝纤维化相关的蛋白质,可能为了解酒精性肝纤维化发病机制提供一些新线索。 | 张丽军 贾小芳 吴达革 刘晓茜 黄燕 张姣丽 程能能 | 2014 | 临床肝胆病杂志2014，30，10： | 1 |
| 4 | 四氯化碳诱导小鼠肝脏纤维化的差异蛋白质组学显示文摘以四氯化碳(Carbon tetrachloride,CCl4)诱导小鼠肝组织纤维化为研究模型,发现并探讨纤维化肝组织与正常肝组织在蛋白质组水平上的差异。实验小鼠(C57 BL/6)随机分为两组,由橄榄油和四氯化碳诱导15周,并分别对这两组肝组织的全蛋白表达谱进行质谱检测,应用GO(Gene Ontology)功能分类分析和KEGG(Kyoto Enyoolpedia of Genes and Genomes)信号通路的富集分析方法对鉴定到的全蛋白表达谱进行差异表达分析。在对照组和实验组中,我们分别鉴定到17 382和20 486条特异性肽段,图谱平均利用率大于50%,共计鉴定到蛋白4 991种(蛋白特异性肽段个数至少为1),其中差异表达蛋白有2 135种(差异倍数大于或等于2),表达上调蛋白1 264种,下调蛋白871种。纤维化肝脏组织中与细胞外基质组成(Extracellular matrix organization)、细胞骨架组成(Cytoskeleton organization)、有机磷酸代谢(Organophosphate metabolic process)、细胞定位(Cellular localization)和细胞组分调节(Regulation of cellular component organization)相关蛋白的表达是上调的;另外,与小分子代谢(Small molecule metabolic process)、蛋白质转运(Protein transport)和有机氮化合物的代谢(Organonitrogen compound metabolic process),以及四吡咯的合成过程(Tetrapyrrole biosynthetic process)有关蛋白的表达是下调的。信号通路富集分析结果表明,纤维化与VEGF和T细胞受体信号调节通路密切相关。结果提示,纤维化的形成不仅是一个复杂的信号转导过程,更是一个炎症与免疫相互促成的结果;增强肝实质细胞的存活,降低相关信号的传递及接收都有可能对纤维化的发生和发展起到抑制效果。 | 郭改改 吴红星 刘明伟 丁琛 秦钧 杨晓明 | 2014 | 生物工程学报2014，30，7： | 0 |
| 5 | 差异蛋白质组学在肝纤维化疾病中的应用显示文摘差异蛋白质组学作为一种新兴的蛋白质研究技术,逐渐在肝纤维化(HF)疾病的研究中广泛应用。该文主要对差异蛋白组学的理论基础、在肝纤维化疾病的诊治和研究技术上的应用以及目前存在的问题等方面作一简要综述,从而阐明在肝纤维化疾病中差异蛋白组学现阶段的研究现状,旨在为探讨如何更全面完整地研究肝纤维化提供参考。随着科学技术及科研条件的不断完善,差异蛋白组学的多种技术手段应用于肝纤维化疾病将具有更广阔的研究前景和发展空间。 | 蒋云霞 罗伟生 | 2020 | 生物技术2020，30，3： | 0 |
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