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ACBP orchestrates the metabolic phenotype in Cushing’s syndrome ACBP 协调库欣综合征的代谢表型
IF 18.9 1区 医学 Q1 ENDOCRINOLOGY & METABOLISM Pub Date : 2024-11-22 DOI: 10.1038/s42255-024-01169-7
Mhairi Paul, Mark Nixon
Cushing’s syndrome, a condition of chronic glucocorticoid excess, disrupts metabolic homeostasis, driving fat redistribution and promoting insulin resistance. New research uses a series of elegant approaches to reveal acyl-CoA-binding protein (ACBP) as a mediator of the metabolic disturbances associated with elevated glucocorticoid levels in mice.
库欣综合征是一种糖皮质激素长期过量的病症,会破坏代谢平衡,导致脂肪重新分布并促进胰岛素抵抗。新研究采用一系列优雅的方法揭示了酰基-CoA结合蛋白(ACBP)是小鼠糖皮质激素水平升高引起代谢紊乱的介质。
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引用次数: 0
Cancer cachexia: multilevel metabolic dysfunction 癌症恶病质:多层次代谢功能障碍
IF 18.9 1区 医学 Q1 ENDOCRINOLOGY & METABOLISM Pub Date : 2024-11-22 DOI: 10.1038/s42255-024-01167-9
Mauricio Berriel Diaz, Maria Rohm, Stephan Herzig
Cancer cachexia is a complex metabolic disorder marked by unintentional body weight loss or ‘wasting’ of body mass, driven by multiple aetiological factors operating at various levels. It is associated with many malignancies and significantly contributes to cancer-related morbidity and mortality. With emerging recognition of cancer as a systemic disease, there is increasing awareness that understanding and treatment of cancer cachexia may represent a crucial cornerstone for improved management of cancer. Here, we describe the metabolic changes contributing to body wasting in cachexia and explain how the entangled action of both tumour-derived and host-amplified processes induces these metabolic changes. We discuss energy homeostasis and possible ways that the presence of a tumour interferes with or hijacks physiological energy conservation pathways. In that context, we highlight the role played by metabolic cross-talk mechanisms in cachexia pathogenesis. Lastly, we elaborate on the challenges and opportunities in the treatment of this devastating paraneoplastic phenomenon that arise from the complex and multifaceted metabolic cross-talk mechanisms and provide a status on current and emerging therapeutic approaches. In this Review, the authors highlight cancer cachexia as a complex and multifactorial disorder, and discuss the underlying host-driven and tumour-driven metabolic changes, therapeutic opportunities and the pertinent challenges in the treatment of cancer cachexia.
癌症恶病质是一种复杂的新陈代谢紊乱,其特征是身体重量无意中减轻或体质 "消瘦",由多种致病因素在不同程度上造成。癌症恶病质与许多恶性肿瘤有关,是导致癌症相关发病率和死亡率的重要因素。随着人们逐渐认识到癌症是一种全身性疾病,人们越来越意识到,了解和治疗癌症恶病质可能是改善癌症管理的重要基石。在这里,我们描述了导致恶病质中身体消瘦的代谢变化,并解释了肿瘤衍生过程和宿主增强过程的纠缠作用是如何诱发这些代谢变化的。我们讨论了能量平衡以及肿瘤的存在干扰或劫持生理能量守恒途径的可能方式。在此背景下,我们强调了代谢交叉对话机制在恶病质发病机制中的作用。最后,我们阐述了治疗这一毁灭性副肿瘤现象的挑战和机遇,这些挑战和机遇源于复杂和多方面的代谢交叉对话机制,并提供了当前和新兴治疗方法的现状。
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引用次数: 0
Cryptic phosphoribosylase activity of NAMPT restricts the virion incorporation of viral proteins NAMPT 的隐性磷酸核糖酶活性限制了病毒蛋白在病毒中的结合
IF 18.9 1区 医学 Q1 ENDOCRINOLOGY & METABOLISM Pub Date : 2024-11-21 DOI: 10.1038/s42255-024-01162-0
Shu Feng, Na Xie, Yongzhen Liu, Chao Qin, Ali Can Savas, Ting-Yu Wang, Shutong Li, Youliang Rao, Alexandra Shambayate, Tsui-Fen Chou, Charles Brenner, Canhua Huang, Pinghui Feng
As obligate intracellular pathogens, viruses activate host metabolic enzymes to supply intermediates that support progeny production. Nicotinamide phosphoribosyltransferase (NAMPT), the rate-limiting enzyme of salvage nicotinamide adenine dinucleotide (NAD+) synthesis, is an interferon-inducible protein that inhibits the replication of several RNA and DNA viruses through unknown mechanisms. Here, we show that NAMPT restricts herpes simplex virus type 1 (HSV-1) replication by impeding the virion incorporation of viral proteins owing to its phosphoribosyl-hydrolase (phosphoribosylase) activity, which is independent of the role of NAMPT in NAD+ synthesis. Proteomics analysis of HSV-1-infected cells identifies phosphoribosylated viral structural proteins, particularly glycoproteins and tegument proteins, which are de-phosphoribosylated by NAMPT in vitro and in cells. Chimeric and recombinant HSV-1 carrying phosphoribosylation-resistant mutations show that phosphoribosylation promotes the incorporation of structural proteins into HSV-1 virions and subsequent virus entry. Loss of NAMPT renders mice highly susceptible to HSV-1 infection. Our work describes an additional enzymatic activity of a metabolic enzyme in viral infection and host defence, offering a system to interrogate the roles of protein phosphoribosylation in metazoans. The NAD+ synthesis enzyme NAMPT is shown to possess additional enzymatic activity as a phosphoribosylase, which restricts the virion incorporation of viral proteins and underpins its antiviral effect
作为强制性细胞内病原体,病毒会激活宿主的代谢酶,以提供支持后代产生的中间产物。烟酰胺磷酸核糖转移酶(NAMPT)是烟酰胺腺嘌呤二核苷酸(NAD+)合成的限速酶,它是一种干扰素诱导蛋白,能通过未知机制抑制多种 RNA 和 DNA 病毒的复制。在这里,我们发现 NAMPT 通过其磷酸核糖水解酶(phosphoribosyl-hydrolase)活性阻碍病毒蛋白在病毒中的结合,从而限制了单纯疱疹病毒 1 型(HSV-1)的复制,而这与 NAMPT 在 NAD+ 合成中的作用无关。对 HSV-1 感染细胞进行的蛋白质组学分析确定了磷酸核糖基化的病毒结构蛋白,特别是糖蛋白和保护膜蛋白,这些蛋白在体外和细胞内被 NAMPT 去磷酸核糖基化。携带磷酸核糖基化抗性突变的嵌合型和重组型 HSV-1 表明,磷酸核糖基化促进了结构蛋白与 HSV-1 病毒的结合以及随后的病毒进入。缺失 NAMPT 会使小鼠极易感染 HSV-1。我们的工作描述了一种代谢酶在病毒感染和宿主防御中的额外酶活性,为研究蛋白质磷酸化在类人猿中的作用提供了一个系统。
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引用次数: 0
Microviridae bacteriophages in the gut microbiome and food addiction in humans 人类肠道微生物群中的微病毒科噬菌体与食物成瘾
IF 18.9 1区 医学 Q1 ENDOCRINOLOGY & METABOLISM Pub Date : 2024-11-20 DOI: 10.1038/s42255-024-01158-w
Despite their abundance and despite being the most numerous biological entities on Earth, viruses remain one of the least understood components of the human microbiome. In our study, we show how Microviridae bacteriophages in the gut microbiome are associated with food addiction through changes in tryptophan, serotonin and dopamine metabolism.
病毒是地球上数量最多的生物实体,尽管数量巨大,但它们仍然是人类微生物组中最不为人知的组成部分之一。在我们的研究中,我们展示了肠道微生物组中的微小病毒科噬菌体如何通过改变色氨酸、血清素和多巴胺的代谢与食物成瘾有关。
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引用次数: 0
Human PERIOD3 variants lead to winter depression-like behaviours via glucocorticoid signalling 人类 PERIOD3 变体通过糖皮质激素信号导致类似冬季抑郁症的行为
IF 18.9 1区 医学 Q1 ENDOCRINOLOGY & METABOLISM Pub Date : 2024-11-11 DOI: 10.1038/s42255-024-01163-z
Qian Gao, Zhiwei Tang, Haili Wang, Maya Yamazaki, Jia Jiang, Ying-Hui Fu, Louis J. Ptacek, Luoying Zhang
Our brain adapts to seasonal changes. Mis-adaptations may lead to seasonal patterns in several psychiatric disorders, but we know little regarding the underlying mechanisms. Our previous work identified two variants in the human circadian clock gene PERIOD3 (PER3), that is, P415A and H417R, which are associated with winter depression, but whether and how these variants lead to the disorder remain to be characterized. Here we find that male mice carrying human P415A and H417R display winter depression-like behaviours that are caused by the actions of P415A and H417R in the adrenal gland. Systemic corticosterone level is downregulated in adaptation to shortening of day length, while P415A and H417R eliminate this downregulation by increasing corticosterone synthesis. Enhanced glucocorticoid signalling represses the transcription of Tph2, which encodes the rate-limiting enzyme of serotonin synthesis, leading to increased depression-like behaviours. Taken together, our findings unveil a mechanism according to which human variants contribute to seasonal mood traits. The authors show how genetic variants of the human circadian clock gene PER3 are related to winter depression. In mice, under shorter light exposure, such variants enhance glucocorticoid signalling, inhibiting serotonin production and leading to depression-like behaviours.
我们的大脑会适应季节变化。错误的适应可能会导致多种精神疾病的季节性模式,但我们对其潜在机制知之甚少。我们之前的工作发现了人类昼夜节律时钟基因 PERIOD3(PER3)的两个变体,即 P415A 和 H417R,这两个变体与冬季抑郁症有关,但这些变体是否以及如何导致这种疾病仍有待确定。在这里,我们发现携带人类 P415A 和 H417R 的雄性小鼠表现出类似冬季抑郁症的行为,这种行为是由 P415A 和 H417R 在肾上腺中的作用引起的。在适应昼长缩短的过程中,全身皮质酮水平下调,而 P415A 和 H417R 则通过增加皮质酮的合成来消除这种下调。糖皮质激素信号的增强抑制了 Tph2 的转录,而 Tph2 编码血清素合成的限速酶,从而导致抑郁样行为的增加。综上所述,我们的研究结果揭示了人类变体导致季节性情绪特征的机制。
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引用次数: 0
AI-READI: rethinking AI data collection, preparation and sharing in diabetes research and beyond AI-READI:重新思考糖尿病研究及其他领域的人工智能数据收集、准备和共享问题
IF 18.9 1区 医学 Q1 ENDOCRINOLOGY & METABOLISM Pub Date : 2024-11-08 DOI: 10.1038/s42255-024-01165-x
AI-READI Consortium
Here, we introduce Artificial Intelligence Ready and Equitable Atlas for Diabetes Insights (AI-READI), a multidisciplinary data-generation project designed to create and share a multimodal dataset optimized for artificial intelligence research in type 2 diabetes mellitus.
在此,我们介绍人工智能糖尿病洞察力公平图集(AI-READI),这是一个多学科数据生成项目,旨在创建和共享一个多模态数据集,该数据集经过优化,可用于 2 型糖尿病的人工智能研究。
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引用次数: 0
Author Correction: Branched-chain α-ketoacids aerobically activate HIF1α signalling in vascular cells 作者更正:支链α-酮酸有氧激活血管细胞中的 HIF1α 信号。
IF 18.9 1区 医学 Q1 ENDOCRINOLOGY & METABOLISM Pub Date : 2024-11-05 DOI: 10.1038/s42255-024-01171-z
Wusheng Xiao, Nishith Shrimali, Niv Vigder, William M. Oldham, Clary B. Clish, Huamei He, Samantha J. Wong, Bradley M. Wertheim, Elena Arons, Marcia C. Haigis, Jane A. Leopold, Joseph Loscalzo
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引用次数: 0
A pathogenic role for IL-10 signalling in capillary stalling and cognitive impairment in type 1 diabetes IL-10 信号在 1 型糖尿病毛细血管阻滞和认知障碍中的致病作用
IF 18.9 1区 医学 Q1 ENDOCRINOLOGY & METABOLISM Pub Date : 2024-11-04 DOI: 10.1038/s42255-024-01159-9
Sorabh Sharma, Manjinder Cheema, Patrick L. Reeson, Kamal Narayana, Roobina Boghozian, Ana Paula Cota, Tara P. Brosschot, Rachael D. FitzPatrick, Jakob Körbelin, Lisa A. Reynolds, Craig E. Brown
Vascular pathology is associated with cognitive impairment in diseases such as type 1 diabetes; however, how capillary flow is affected and the underlying mechanisms remain elusive. Here we show that capillaries in the diabetic mouse brain in both sexes are prone to stalling, with blocks consisting primarily of erythrocytes in branches off ascending venules. Screening for circulating inflammatory cytokines revealed persistently high levels of interleukin-10 (IL-10) in diabetic mice. Contrary to expectation, stimulating IL-10 signalling increased capillary obstruction, whereas inhibiting IL-10 receptors with neutralizing antibodies or endothelial specific knockdown in diabetic mice reversed these impairments. Chronic treatment of diabetic mice with IL-10 receptor neutralizing antibodies improved cerebral blood flow, increased capillary flux and diameter, downregulated haemostasis and cell adhesion-related gene expression, and reversed cognitive deficits. These data suggest that IL-10 signalling has an unexpected pathogenic role in cerebral microcirculatory defects and cognitive impairment associated with type 1 diabetes. Interleukin-10 promotes the formation of microcirculatory defects in the brain associated with cognitive impairment in a mouse model of type 1 diabetes.
血管病变与 1 型糖尿病等疾病的认知功能障碍有关;然而,毛细血管流动如何受到影响及其内在机制仍然难以捉摸。在这里,我们发现糖尿病小鼠大脑中的毛细血管容易阻滞,阻滞物主要是上升静脉分支中的红细胞。对循环炎症细胞因子的筛查显示,糖尿病小鼠体内的白细胞介素-10(IL-10)水平持续偏高。与预期相反,刺激 IL-10 信号会增加毛细血管阻塞,而用中和抗体抑制 IL-10 受体或敲除糖尿病小鼠内皮特异性受体则会逆转这些损伤。用 IL-10 受体中和抗体对糖尿病小鼠进行慢性治疗可改善脑血流量,增加毛细血管通量和直径,下调止血和细胞粘附相关基因的表达,并逆转认知障碍。这些数据表明,IL-10 信号在与 1 型糖尿病相关的脑微循环缺陷和认知障碍中起着意想不到的致病作用。
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引用次数: 0
Diabetes, IL-10 and the brain’s microvascular crisis 糖尿病、IL-10 和大脑微血管危机
IF 18.9 1区 医学 Q1 ENDOCRINOLOGY & METABOLISM Pub Date : 2024-11-04 DOI: 10.1038/s42255-024-01161-1
Celine E. Riera
A new study finds that capillary vessels become obstructed in diabetes and that their dysfunction may cause microvascular damage and lead to cognitive deficits. Such obstruction is independent of the elevated blood sugar found in diabetes and is triggered by elevated interleukin-10 cytokine signalling in cerebral blood vessel endothelial cells.
一项新研究发现,糖尿病患者的毛细血管会发生阻塞,其功能障碍可能会造成微血管损伤,导致认知障碍。这种阻塞与糖尿病患者的血糖升高无关,是由脑血管内皮细胞中白细胞介素-10细胞因子信号的升高引发的。
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引用次数: 0
Effect of acute exercise in carriers of TBC1D4 mutation 急性运动对 TBC1D4 基因突变携带者的影响
IF 18.9 1区 医学 Q1 ENDOCRINOLOGY & METABOLISM Pub Date : 2024-10-31 DOI: 10.1038/s42255-024-01116-6
Leslie J. Baier, Clifton Bogardus
A nonsense mutation in TBC1D4 has previously been associated with hyperinsulinaemia and increased risk of type 2 diabetes mellitus. A new report shows that carriers have isolated muscle insulin resistance that improves after an acute bout of exercise.
TBC1D4 的无义突变以前与高胰岛素血症和 2 型糖尿病风险增加有关。一份新的报告显示,携带者的孤立肌肉胰岛素抵抗在急性运动后会得到改善。
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引用次数: 0
期刊
Nature metabolism
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