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人类蛋白质N-糖基化的十二年全基因关联研究 Review

Anna Timoshchuk, Sodbo Sharapov, Yurii S. Aulchenko

《工程(英文)》 2023年 第26卷 第7期   页码 17-31 doi: 10.1016/j.eng.2023.03.013

摘要:

Most human-secreted and membrane-bound proteins have covalently attached oligosaccharide chains, or glycans. Glycosylation influences the physical and chemical properties of proteins, as well as their biological functions. Unsurprisingly, alterations in protein glycosylation have been implicated in a growing number of human diseases, and glycans are increasingly being considered as potential therapeutic targets, an essential part of therapeutics, and biomarkers. Although glycosylation pathways are biochemically well-studied, little is known about the networks of genes that guide the cell- and tissue-specific regulation of these biochemical reactions in humans in vivo. The lack of a detailed understanding of the mechanisms regulating glycome variation and linking the glycome to human health and disease is slowing progress in clinical applications of human glycobiology. Two of the tools that can provide much sought-after knowledge of human in vivo glycobiology are human genetics and genomics, which offer a powerful data-driven agnostic approach for dissecting the biology of complex traits. This review summarizes the current state of human populational glycogenomics. In Section 1, we provide a brief overview of the N-glycan's structural organization, and in Section 2, we give a description of the major blood plasma glycoproteins. Next, in Section 3, we summarize, systemize, and generalize the results from current N-glycosylation genome-wide association studies (GWASs) that provide novel knowledge of the genetic regulation of the populational variation of glycosylation. Until now, such studies have been limited to an analysis of the human blood plasma N-glycome and the N-glycosylation of immunoglobulin G and transferrin. While these three glycomes make up a rather limited set compared with the enormous multitude of glycomes of different tissues and glycoproteins, the study of these three does allow for powerful analysis and generalization. Finally, in Section 4, we turn to genes in the established loci, paying particular attention to genes with strong support in Section 5. At the end of the review, in Sections 6 and 7, we describe special cases of interest in light of new discoveries, focusing on possible mechanisms of action and biological targets of genetic variation that have been implicated in human protein N-glycosylation.

关键词:     聚糖     N-糖基化     基因     遗传     全基因关联研究    

代谢扩展生物的“旁中心法则”——对理解基因--代谢-表观基因互作的意义

Albert Stuart Reece

《工程(英文)》 2023年 第26卷 第7期   页码 16-16 doi: 10.1016/j.eng.2022.07.011

摘要:

The central dogma of biology holds that the transcription of DNA into RNA and the translation of RNA into proteins forms the primary axis of biological activity [1]. Following major advances in the description of the complex glycan and lipid chains that are added onto these basic building blocks, the glycome and lipidome have recently been added to this doctrine as an exciting new extension named the ‘‘paracentral dogma” [2]. However, it has been pointed out that biological systems can include many layers, which are described in modern omics technology platforms relating to both cell-intrinsic and cell-extrinsic layers of control, including metabolomic, microbiomic, immunological, epigenomic, epitranscriptomic, proteomic and phosphoproteomic layers [3].

It is well known that stem and progenitor cells have a metabolism that is based on glycolysis and glutaminolysis [4]. Although this provides less energy to the cell than oxidative phosphorylation, it suffices for these cells’ needs, since such cells are generally relatively quiescent and normally suppress energy-intensive processes such as genome duplication and transcription. Moreover, it has been shown that the high intracellular lactate levels involved in such states not only inhibits the key gatekeeper enzymes of oxidative phosphorylation (i.e., pyruvate dehydrogenase and carnitine palmitoyl acyltransferase) but also actually covalently modifies them by lactylation in order to maintain this inhibited metabolic–epigenomic state [5]. In addition, intermediate metabolism and nutrients are the source of the very extensive library of post-translational modifications to DNA, RNA, and proteins, as well as supplying cellular energy for many of the required reactions. Hence, the metabolic state locks in and reinforces the epigenomic state, and the metabolome and epigenome thereby play mutually reinforcing roles. This self-reinforcing coordination explains why it is so difficult to generate induced pluripotent cells and is a contributory explanation for why the described protocols typically have such low cellular yields. 

These concepts become even more important when it is considered that cancer cells are de-differentiated, similarly rely on glycolysis and glutaminolysis, and are similarly metabolically–epigenomically–genomically synchronized. The disruption of this metabolic system is a key focus of mechanistic cancer research.

These important considerations imply that the descriptive and predictive power of the newly described ‘‘paracentral dogma” of biology may be usefully and meaningfully extended by including the metabolome, along with the genome, transcriptome, proteome, glycome, and lipidome, to describe cell-intrinsic regulation—not only in terms of another omics analytical layer but also as a fully predictive and interactive partner in the symphonic-like multilayer coordination that evidently comprises cellular regulatory layering.

基于正交质谱的N-谱揭示哈夫病潜在病原 Article

刘思, 刘圆圆, 林佳静, 刘笔锋, 何振宇, 吴晓旻, 刘欣

《工程(英文)》 2023年 第26卷 第7期   页码 63-73 doi: 10.1016/j.eng.2022.09.012

摘要: N-的剖析将促进破译疾病的分子机制,而HD相关的糖基化从未被探索过。2019—2020年期间,本研究团队招募了来自武汉市疾病预防控制中心的90份HD患者和对照血清样本。本文中,采用基于高通量的正交质谱对HD中血清和血清衍生的IgG的N-谱进行了表征。数据显示,HD与总血清糖蛋白的核心岩藻糖基化和单半乳糖醇化升高有关。本研究表明差异化IgG N-糖基化与HD的关联,为这种罕见疾病的病因提供了新的见解。

关键词: 哈夫病     全血清     IgG抗体     糖基化     疾病病原    

结直肠癌、基质和正常结肠黏膜显微解剖区域N-的显著多样性 Article

Di Wang, Katarina Madunić , Tao Zhang, Guinevere S.M. Lageveen-Kammeijer, Manfred Wuhrer

《工程(英文)》 2023年 第26卷 第7期   页码 32-43 doi: 10.1016/j.eng.2022.08.016

摘要:

Aberrant glycosylation is considered to be a hallmark of colorectal cancer (CRC), as demonstrated by various studies. While the N-glycosylation of cell lines and serum has been widely examined, the analysis of cancer-associated N-glycans from tissues has been hampered by the heterogeneity of tumors and the complexity of N-glycan structures. To overcome these obstacles, we present a study using laser capture microdissection that makes it possible to largely deconvolute distinct N-glycomic signatures originating from different regions of heterogeneous tissues including cancerous, stromal, and healthy mucosa cells. N-glycan alditols were analyzed by means of porous graphitized carbon liquid chromatography-electrospray ionization tandem mass spectrometry, enabling the differentiation and structural characterization of isomeric species. In total, 116 N-glycans were identified that showed profound differences in expression among cancer, stroma, and normal mucosa. In comparison with healthy mucosa, the cancer cells showed an increase in α2-6 sialylation and monoantennary N-glycans, as well as a decrease in bisected N-glycans. Moreover, specific sialylated and (sialyl-)LewisA/X antigen-carrying N-glycans were exclusively expressed in cancers. In comparison with cancer, the stroma showed lower levels of oligomannosidic and monoantennary N-glycans, LewisA/X epitopes, and sulfation, as well as increased expression of (core-)fucosylation and α2-3 sialylation. Our study reveals the distinct N-glycomic profiles of different cell types in CRC tumor and control tissues, proving the necessity of their separate analysis for the discovery of cancer-associated glycans.

 

关键词: 结直肠癌     肿瘤     多孔石墨化碳液相色谱-质谱     N-     抗体反应    

医学

王嵬, 杨宝峰

《工程(英文)》 2023年 第26卷 第7期   页码 1-2 doi: 10.1016/j.eng.2023.05.007

免疫球蛋白G N-糖基化与代谢特征之间的双向因果关联——一项孟德尔随机化研究 Article

孟晓妮, 曹维杰, 刘迪, Isinta Elijah Maranga, 邢薇佳, 侯海峰, 徐希柱, 宋曼殳, 王友信

《工程(英文)》 2023年 第26卷 第7期   页码 74-88 doi: 10.1016/j.eng.2022.11.004

摘要: 本研究使用孟德尔随机化(Mendelian randomization, MR)研究方法整合全基因关联研究(genome-wide association studies, GWAS)和数量性状基因座在正向MR分析中,通过整合IgG N-糖基-QTL遗传变异与GWAS 数据和代谢特征进行分析,分别发现59个包括影响体质指数(body mass index, BMI)的9个IgG N-糖基(glycanpeaks, GP)(GP1和GP6等)和影响空腹血糖(fasting plasma glucose, FPG)的 7个IgG N-糖基(GP1和GP5等)以及15个[包括影响BMI 的5个IgG N--糖基(GP2 和 GP11 等)和影响FPG的 4个IgG N-糖基(GP1和GP10等)]由遗传决定的 IgG N-糖基在单样本和两样本MR研究中与代谢特征存在因果关联(全部 P综上所述,本研究全面的双向MR分析提供了IgG N-糖基化与代谢特征之间双向因果关联的证据,在一定程度上揭示了 IgG N-糖基化与代谢特征之间的生物机制。

关键词: 孟德尔随机化研究     免疫球蛋白 G     N-糖基化     代谢特征     数量性状位点     双向因果关联    

Estimating the effect of urease inhibitor on rice yield based on NDVI at key growth stages

Kailou LIU,Yazhen LI,Huiwen HU

《农业科学与工程前沿(英文)》 2014年 第1卷 第2期   页码 150-157 doi: 10.15302/J-FASE-2014028

摘要: The effect of the urease inhibitor, N-(n-butyl) thiophosphoric triamide (NBPT) at a range of application rates on rice production was examined in a field experiment at Jinxian County, Jiangxi Province, China. The normalized difference vegetation index (NDVI) was measured at key growth stages in both early and late rice. The results showed that the grain yield increased significantly when urea was applied with NBPT, with the highest yield observed at 1.00% NBPT (wt/wt). NDVI differed with the growth stage of rice; it remained steady from the heading to the filling stage. Rice yield could be predicted from the NDVI taken at key rice growing stages, with ranging from 0.34 to 0.69 in early rice and 0.49 to 0.70 in late rice. The validation test showed that RMSE (t·hm ) values were 0.77 and 0.87 in early and late rice, respectively. Therefore, it was feasible to estimate rice yield for different amounts of urease inhibitor using NDVI.

关键词: normalized difference vegetation index (NDVI)     N-(n-butyl) thiophosphoric triamide (NBPT)     rice     grain yield    

Detecting

Chengkun WANG, Xiaojian ZHANG, Jun WANG, Chao CHEN

《环境科学与工程前沿(英文)》 2012年 第6卷 第6期   页码 770-777 doi: 10.1007/s11783-012-0412-0

摘要: nitrosodimethylamine (NDMA) and several other nitrosamines have been detected as disinfection by-products in drinking waters in many countries around the world. An ultra-performance liquid chromatography-tandem mass spectrometry method with solid phase extraction sample preparation was developed to study the occurrence of nitrosamines in several water treatment plants and distribution systems in China. Isotope labeled nitrosodi- propylamine-d14 (NDPA-d14) was selected as the internal standard for quantification. The solid phase extraction procedures including pH, enrichment process and MS/MS parameters including capillary voltage, cone gas flow, cone voltage, collision energy were optimized to give average recoveries of 26% to 112% for nine nitrosamine species. The instrument detection limits were estimated to range from 0.5 to 5 μg·L for the nine nitrosamine species. NDMA and several other nitrosamines were found at fairly high concentrations in several water treatment plants and distribution systems. NDMA was found in all locations, and the highest concentrations in cities B, G, T, and W were 3.0, 35.7, 21.3, and 19.7 ng·L , respectively. A wide range of nitrosamines concentrations and species were observed in different locations. Higher concentrations of nitrosamines were detected in distribution systems that were further away from the treatment plants, suggesting that the contact time between the residual disinfectant and natural organic matter may play an important role in the formation of these compounds.

关键词: N-nitrosamines     water treatment plant     distribution system     ultra-performance liquid chromatography-tandem mass spectrometry    

IgG N-糖基心血管年龄独立于真实年龄精准表征心血管事件风险 Article

武志远, 郭政, 郑雨露, 王玉涛, 张海平, 潘慧颖, 李志伟, Lois Balmer, 李霞, 陶丽新, 郭秀花, 王嵬

《工程(英文)》 2023年 第26卷 第7期   页码 99-107 doi: 10.1016/j.eng.2022.12.004

摘要: 然而,对于IgG N-糖基谱在心血管疾病(CVD)风险分层中的能力仍然未知。本研究旨在利用IgG N-糖基标志物开发追踪心血管疾病风险的年龄指数。使用机器学习递归特征消除和惩罚回归算法逐步筛选特征糖基,并开发IgG N-糖基化心血管年龄(GlyCage)指数,以反映归因于心血管风险的与真实年龄间的偏差。结果显示,对GlyCage指数贡献最大的是具有双分叉N-乙酰葡萄胺(GlcNAc)的岩藻糖基化N-聚糖(GP6, FA2B)和具有双分叉GlcNAc的双半乳糖基化N-聚糖(GP13, A2BG2)。因此,本研究开发的GlyCage指数利用IgG N-糖基谱追踪心血管健康水平。GlyCage和真实年龄之间的差距能够独立地表征心血管风险,提示IgG N-糖基化在心血管疾病的发病机制中起作用。

关键词: IgG     N-糖基心血管年龄     心血管年龄     免疫球蛋白G     糖基化     炎症     特征选择     机器学习    

可去除染料——N-聚糖多方法深入分析中的缺失环节 Article

Samanta Cajic, René Hennig, Valerian Grote, Udo Reichl, Erdmann Rapp

《工程(英文)》 2023年 第26卷 第7期   页码 132-150 doi: https://doi.org/10.1016/j.eng.2023.02.016

摘要:

As the roles of glycans in health and disease continue to be unraveled, it is becoming apparent that glycans'  immense complexity cannot be ignored. To fully delineate glycan structures, we developed an integrative approach combining a set of cost-effective, widespread, and easy-to-handle analytical methods. The key feature of our workflow is the exploitation of a removable fluorescent label—exemplified by 9-fluorenylmethyl chloroformate (Fmoc)—to bridge the gap between diverse glycoanalytical methods, especially multiplexed capillary gel electrophoresis with laser-induced fluorescence detection (xCGE-LIF) and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). Through the detailed structural analysis of selected, dauntingly complex N-glycans from chicken ovalbumin, horse serum, and bovine transferrin, we illustrate the capabilities of the presented strategy. Moreover, this approach "visualizes" N-glycans that have been difficult to identify thus far—such as the sulfated glycans on human immunoglobulin A—including minute changes in glycan structures, potentially providing useful new targets for biomarker discovery.

关键词: 糖蛋白     N-聚糖     可逆标签     亲水相互作用液相色谱法     毛细管凝胶电泳     质谱法    

时间序列多组整合分析揭示原代肝细胞体外培养去分化过程伴随非降解性泛素化修饰的增加 Article

姜正一, 孙泽宇, 欧阳晓希, 赵亚磊, 周梦豪, 王保红, 李启睿, 范林骁, 张赛男, 李兰娟

《工程(英文)》 2020年 第6卷 第11期   页码 1302-1314 doi: 10.1016/j.eng.2020.02.011

摘要: 尽管学者已经对PHC的转录调控和全细胞蛋白质(WCP)进行了广泛研究,但只有为数不多的研究考虑了蛋白质翻译后修饰(PTM)在这一过程中的作用。为了揭示引起PHC去分化的潜在机制,我们收集了在体外培养0 h、6 h、12 h、24 h和48 h的大鼠原代肝细胞样本,对各个时间点细胞样本的转录、WCP、泛素化蛋白质和磷酸化蛋白质进行了定量分析泛素化修饰和对应的WCP联合分析表明,PHC去分化伴随着非降解性K27泛素化修饰位点的增加。对差异表达的磷酸化修饰蛋白进行功能富集分析,表明该过程中有铁死亡参与。

关键词: 去分化     原代肝细胞     翻译后修饰     泛素化蛋白质     磷酸化蛋白质     转录    

中医方证代谢——中药效应评价的有效途径 Review

张爱华, 孙晖, 闫广利, 韩莹, 赵琦琦, 王喜军

《工程(英文)》 2019年 第5卷 第1期   页码 60-68 doi: 10.1016/j.eng.2018.11.008

摘要:

有效性评价是发现中药药效物质基础、先导化合物和质量标志物的重要前提,因此急需建立一种生物语言,将中药有效性科学地表达出来,进一步凸显中医药的实用价值。我们以证候和方剂为研究对象,建立了科学评价中药有效性的创新方法学体系——中医方证代谢。它将中药血清药物化学理论与代谢技术有机整合,在解决证候生物标记物的基础上,建立方剂药效生物评价体系,发现并确认中药药效物质基础。该策略为提高中医理论和临床实践的科学价值提供了有力支持。本文概述了中医方证代谢的研究策略,利用该方法揭示临床常见中医证候生物标记物及开展相关方剂的有效性评价研究,着重阐述了中药药效物质基础及质量标记物的发现。

关键词: 中医方证代谢     中药血清药物化学     有效性     代谢     证候     生物标记物     质量标记物    

作物表型大数据技术及装备发展研究

温维亮,郭新宇 ,张颖,顾生浩,赵春江

《中国工程科学》 2023年 第25卷 第4期   页码 227-238 doi: 10.15302/J-SSCAE-2023.04.015

摘要: ,表型数据内关联转向多组协同创新。为此,本文立足国内外作物表型已有研究成果,结合我国作物表型大数据技术及装备的研发现状和产业发展实际,明晰定位、梳理现状、剖析问题并形成技术性发展建议,以期为作物表型及农业科技发展研究提供基础参考2020年,华中农业大学成功整合了来自同一玉米群体的基因、转录、表型、代谢、表观基因、遗传变异、遗传定位结果等多组数据,构建了玉米定制化多组数据库(ZEAMAP)[

随着高通量测序技术的发展与完善,单研究日趋成熟,而整合多组数据研究植物生长发育的工作方兴未艾。多组研究在作物重要基因挖掘、全基因关联分析、基因表达调控网络构建、作物全基因选择、系统生物研究等方面发挥着日益重要的作用。

关键词: 作物表型;表型大数据;表型技术及装备;多组    

通过将中医体质理论应用于不孕症

王琦

《工程(英文)》 2023年 第30卷 第11期   页码 30-31 doi: 10.1016/j.eng.2023.05.005

基因的发展助力古DNA研究

Sarah C.P. Williams

《工程(英文)》 2023年 第26卷 第7期   页码 9-11 doi: 10.1016/j.eng.2023.05.003

标题 作者 时间 类型 操作

人类蛋白质N-糖基化的十二年全基因关联研究

Anna Timoshchuk, Sodbo Sharapov, Yurii S. Aulchenko

期刊论文

代谢扩展生物的“旁中心法则”——对理解基因--代谢-表观基因互作的意义

Albert Stuart Reece

期刊论文

基于正交质谱的N-谱揭示哈夫病潜在病原

刘思, 刘圆圆, 林佳静, 刘笔锋, 何振宇, 吴晓旻, 刘欣

期刊论文

结直肠癌、基质和正常结肠黏膜显微解剖区域N-的显著多样性

Di Wang, Katarina Madunić , Tao Zhang, Guinevere S.M. Lageveen-Kammeijer, Manfred Wuhrer

期刊论文

医学

王嵬, 杨宝峰

期刊论文

免疫球蛋白G N-糖基化与代谢特征之间的双向因果关联——一项孟德尔随机化研究

孟晓妮, 曹维杰, 刘迪, Isinta Elijah Maranga, 邢薇佳, 侯海峰, 徐希柱, 宋曼殳, 王友信

期刊论文

Estimating the effect of urease inhibitor on rice yield based on NDVI at key growth stages

Kailou LIU,Yazhen LI,Huiwen HU

期刊论文

Detecting

Chengkun WANG, Xiaojian ZHANG, Jun WANG, Chao CHEN

期刊论文

IgG N-糖基心血管年龄独立于真实年龄精准表征心血管事件风险

武志远, 郭政, 郑雨露, 王玉涛, 张海平, 潘慧颖, 李志伟, Lois Balmer, 李霞, 陶丽新, 郭秀花, 王嵬

期刊论文

可去除染料——N-聚糖多方法深入分析中的缺失环节

Samanta Cajic, René Hennig, Valerian Grote, Udo Reichl, Erdmann Rapp

期刊论文

时间序列多组整合分析揭示原代肝细胞体外培养去分化过程伴随非降解性泛素化修饰的增加

姜正一, 孙泽宇, 欧阳晓希, 赵亚磊, 周梦豪, 王保红, 李启睿, 范林骁, 张赛男, 李兰娟

期刊论文

中医方证代谢——中药效应评价的有效途径

张爱华, 孙晖, 闫广利, 韩莹, 赵琦琦, 王喜军

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