Durable Schistosome induced metabolic alterations to the myeloid lineage

持久的血吸虫诱导骨髓谱系的代谢改变

• 批准号: 10559643
• 负责人: Eyal Amiel
• 金额: $ 55.6万
• 依托单位: UNIVERSITY OF UTAH
• 依托单位国家: 美国
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-03-05 至 2025-02-28
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10559643
• 关键词: Address; Anti-Inflammatory Agents; Antiatherogenic; Antigens; Apolipoprotein E; Area; Asthma; Atherosclerosis; Bone Marrow; Cardiovascular Diseases; Cardiovascular system; Cells; Cholesterol; Cholesterol Homeostasis; Chronic; Data; Dependence; Development; Diabetes Mellitus; Differentiation Antigens; Disease; Estrogens; Female; Formulation; Genetic; Genetic Transcription; Genomics; Glucose Intolerance; Goals; Gonadal Steroid Hormones; Helminths; Hepatic; High Fat Diet; Immunologics; Infection; Inflammatory; Inflammatory Bowel Diseases; Inflammatory Response; Insulin; Insulin Resistance; Interleukin-4; Link; Lipids; Literature; Macrophage; Macrophage Activation; Maps; Metabolic; Metabolic Diseases; Metabolic syndrome; Metabolism; Modeling; Modification; Morbidity - disease rate; Mus; Myelogenous; Myeloid Progenitor Cells; Nematoda; Obesity; Oxygen Consumption; Pathology; Pathway interactions; Patients; Phenotype; Phospholipid Metabolism; Phospholipids; Population; Principal Component Analysis; Progesterone; Recording of previous events; Research; Resolution; Risk; Risk Factors; Role; Schistosoma; Schistosoma mansoni; Testing; Testosterone; Transcription Alteration; amino acid metabolism; biological sex; cardiovascular disorder risk; chronic inflammatory disease; cytokine; diabetic; diabetic patient; helminth infection; hematopoietic differentiation; immune function; immunoregulation; innovation; insulin sensitivity; male; monocyte; mortality; mouse model; non-diabetic; novel; novel strategies; progenitor; protective effect; respiratory; stem cell niche; success; therapy development; transcriptome; transcriptomics

PROJECT SUMMARY Diabetic patients have a two-fold greater risk of developing cardiovascular disease than non-diabetic subjects, and more than 65% of diabetic patients die from cardiovascular complications, thus, there is a critical need for novel approaches to targeting insulin resistance, obesity, and atherosclerosis in this population. Recent evidence has suggested that innate and/or adaptive inflammatory responses are associated with both insulin resistance and obesity, while atherosclerosis is now widely accepted to be a lipid-dependent chronic inflammatory disease. An increasing body of literature has established an inverse correlation between chronic helminth infections and metabolic syndrome/diabetes. The central hypothesis of this project is that schistosome antigenic exposure induces long-lived modifications in the monocyte/macrophage lineage that lead to profound alterations in systemic phospholipid, cholesterol, and amino acid metabolism, resulting in a protective state from the detrimental effects of High Fat Diet (HFD) (e.g., insulin insensitivity, and atherosclerosis). The rationale for this research is that identifying genetic drivers that underlie this protective phenotype is expected to enable the formulation and development of therapies to target these pathways as treatments for diabetic patients at risk for CVD. This objective will be addressed by pursuing three specific aims: 1) Define the role of S. mansoni infection in regulating the long-term metabolic and immunological function of macrophages; 2) Determine how S. mansoni infection regulates hematopoietic differentiation of macrophages at the transcriptional level; and 3) Determine the role of biological sex and sex hormones in schistosome induced metabolic reprogramming. It is expected that the findings from these studies will provide a definitive conceptual framework as to the mechanism through which S. mansoni infection modulates metabolism and immunologic plasticity of the macrophage lineage.

项目概要 糖尿病患者患心血管疾病的风险是非糖尿病患者的两倍， 超过65%的糖尿病患者死于心血管并发症，因此迫切需要 针对该人群的胰岛素抵抗、肥胖和动脉粥样硬化的新方法。最近的 有证据表明先天性和/或适应性炎症反应与胰岛素相关 抵抗力和肥胖，而动脉粥样硬化现在被广泛认为是一种脂质依赖性慢性病 炎症性疾病。越来越多的文献已经证实慢性病之间存在负相关关系。 蠕虫感染和代谢综合征/糖尿病。该项目的中心假设是 血吸虫抗原暴露会引起单核细胞/巨噬细胞谱系的长期改变， 导致全身磷脂、胆固醇和氨基酸代谢发生深刻改变，从而导致 免受高脂肪饮食 (HFD) 有害影响的保护状态（例如胰岛素不敏感和 动脉粥样硬化）。这项研究的基本原理是确定这种保护作用背后的遗传驱动因素 表型有望使针对这些途径的疗法的制定和开发成为可能 对有心血管疾病风险的糖尿病患者进行治疗。这一目标将通过追求三个具体目标来实现 目标：1）明确曼氏沙门氏菌感染在调节长期代谢和免疫学方面的作用 巨噬细胞的功能； 2) 确定曼氏沙门氏菌感染如何调节造血分化 转录水平的巨噬细胞； 3) 确定生物性别和性激素在 血吸虫诱导代谢重编程。预计这些研究的结果将提供 关于曼氏沙门氏菌感染调节机制的明确概念框架 巨噬细胞谱系的代谢和免疫可塑性。