相关实验视频
Updated: Jul 18, 2026

12:03
In Vivo Model for Testing Effect of Hypoxia on Tumor Metastasis
Published on: December 9, 2016
在体外研究:依赖HIF-1α的糖解在低氧条件下增强NETosis
Yi Ye1,2,3, Yanjun Wang1,2,3,4, Qiying Xu1,2,3,5
1Research Center for High Altitude Medicine, Qinghai University, Xining, China.
Frontiers in immunology
|May 13, 2025
概括
低氧诱导因子 (HIF) - 1α驱动的糖解在低氧条件下增加了中性粒细胞外细胞陷 (NET) 的形成. 抑制HIF-1α或糖解会减少NETosis,突出显示代谢重编程.
科学领域:
- 免疫学 免疫学 免疫学
- 代谢途径 代谢途径
- 细胞应激反应的细胞应激反应
背景情况:
- 缺氧显著影响免疫反应,特别是在中性粒细胞中.
- 低氧诱导因子 (HIF) - 1α调节新陈代谢和炎症.
- 在缺氧下NETosis中HIF-1α依赖型糖解的作用尚不清楚.
研究的目的:
- 研究HIF-1α在调节糖解中的作用及其对中性粒细胞在低氧条件下的NETosis的影响.
- 探索代谢重编程在缺氧期间对中性粒细胞功能的影响.
主要方法:
- 使用了人类中性粒细胞和dHL-60细胞模型.
- 采用了西部涂抹,免疫光学,ELISA和流细胞计.
- 调查了HIF-1α抑制 (LW6) 和糖溶性阻断 (Bay-876) 的影响.
主要成果:
- 依赖HIF-1α的葡萄糖溶解上调关键的葡萄糖酶,增强缺氧下的NETosis.
- 使用LW6抑制HIF-1α显著降低了NETosis.
- 使用Bay-876阻断糖解也显著降低了NETosis.
结论:
- 依赖HIF-1α的糖解是低氧压力期间NET形成的关键驱动因素.
- 代谢重编程对于缺氧中性粒细胞功能至关重要.
- 准代谢途径可能为缺氧相关的炎症性疾病提供治疗策略.
相关概念视频
What is Glycolysis?
Overview
Cells make energy by breaking down macromolecules. Cellular respiration is the biochemical process that converts "food energy" (from the chemical bonds of macromolecules) into chemical energy in the form of adenosine triphosphate (ATP). The first step of this tightly regulated and intricate process is glycolysis. The word glycolysis originates from the Latin glyco (sugar) and lysis (breakdown). Glycolysis serves two main intracellular functions: generating ATP and generating...
Cells make energy by breaking down macromolecules. Cellular respiration is the biochemical process that converts "food energy" (from the chemical bonds of macromolecules) into chemical energy in the form of adenosine triphosphate (ATP). The first step of this tightly regulated and intricate process is glycolysis. The word glycolysis originates from the Latin glyco (sugar) and lysis (breakdown). Glycolysis serves two main intracellular functions: generating ATP and generating...
Outcomes of Glycolysis
Nearly all the energy used by cells comes from the bonds that make up complex organic compounds. These organic compounds are broken down into simpler molecules, such as glucose. As a result, cells extract energy from glucose over many chemical reactions—a process called cellular respiration.
Cellular respiration can occur aerobically (with oxygen) or anaerobically (without oxygen). In the presence of oxygen, cellular respiration starts with glycolysis and continues with pyruvate oxidation, the...
Cellular respiration can occur aerobically (with oxygen) or anaerobically (without oxygen). In the presence of oxygen, cellular respiration starts with glycolysis and continues with pyruvate oxidation, the...
Regulation of Angiogenesis and Blood Supply
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl hydroxylase and factor...
Hypoxia
Hypoxia is a medical condition characterized by an inadequate oxygen supply to body tissues. It typically manifests as a bluish discoloration of the skin and mucosae, especially in fair-skinned individuals, when hemoglobin (Hb) saturation drops below 75%.
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
Glycolysis
Glycolysis, the Embden-Meyerhof pathway, is a central metabolic pathway involved in glucose catabolism. It is highly conserved across most organisms, reflecting its fundamental role in cellular energy production. This process occurs in the cytoplasm and can function both in the presence and absence of oxygen, making it versatile for various organisms and environmental conditions.Stages of GlycolysisGlycolysis is a ten-step pathway that converts glucose into pyruvate, generating a net gain of...

