通过诱导代谢重编程,高果糖消费加剧了炎症
Xiao Ma1,2, Jiao Chen3, Fang Wang4
1Department of Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Signal transduction and targeted therapy
|August 25, 2025
概括
高果糖摄入量通过促进T辅助1 (Th1) 和T辅助17 (Th17) 细胞使炎症性肠病 (IBD) 恶化. 甲胺可以扭转这种免疫失衡,为果糖引起的炎症提供一种潜在的治疗方法.
科学领域:
- 免疫学
- 代谢疾病
- 胃肠病学
背景情况:
- 增加糖分,尤其是果糖,与炎症性疾病有关.
- 果糖对T细胞免疫和炎症性肠病 (IBD) 的直接影响尚未完全了解.
研究的目的:
- 调查高果糖消费如何影响T细胞免疫力和IBD发展.
- 探索甲胺在减轻果糖诱导的免疫失调方面的潜力.
主要方法:
- 在IBD的背景下研究了高果糖摄入对T助手1 (Th1) 和T助手17 (Th17) 细胞分化的影响.
- 研究了拉巴胺素复合物1 (mTORC1) 和反应性氧物种 (ROS) 介导的转化生长因子-β (TGF-β) 途径的机械性标的作用.
- 在小鼠模型中评估了甲胺的治疗潜力.
主要成果:
- 高果糖消费通过促进Th1和Th17细胞的产生加速IBD.
- 果糖通过依赖谷氨酸代谢的mTORC1激活和ROS介导的TGF-β信号增强了Th1/Th17的分化.
- 通过抑制mTORC1和ROS-TGF-β通路,甲素有效地逆转这些果糖诱导的变化.
结论:
- 通过直接促进T细胞免疫,高果糖摄入会破坏免疫平衡并加剧IBD.
- 梅特福林在逆转果糖诱导的T细胞免疫失衡和结肠炎方面具有治疗潜力.
相关概念视频
Overview of Carbohydrate Metabolism
1.8K
Carbohydrate metabolism is a fundamental biochemical process that ensures a constant supply of energy to living cells. The most important carbohydrate is glucose, which can be broken down via glycolysis to enter into the Krebs cycle and eventually lead to the production of ATP through oxidative phosphorylation.
Glucose transport into cells is facilitated by a family of transport proteins called GLUT (Glucose Transporters). GLUT4 is the primary glucose transporter for insulin-stimulated glucose...
Glucose transport into cells is facilitated by a family of transport proteins called GLUT (Glucose Transporters). GLUT4 is the primary glucose transporter for insulin-stimulated glucose...
1.8K
Inflammation
55.1K
Overview
55.1K
Chronic Pancreatitis I: Introduction
148
The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
148
T Cell Types and Functions
1.4K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.4K
Inflammatory Response
7.1K
An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
7.1K
Obesity
612
The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in...
612


