缺氧诱导因素-1α在血管化的生理功能和治疗潜力
Zhenghong Zhang1, Defan Wang2, Renfeng Xu1
1Provincial Key Laboratory for Developmental Biology and Neurosciences, College of Life Sciences, Fujian Normal University, Fuzhou 350007, China.
Biomolecules
|January 8, 2025
概括
缺氧稳定HIF-1α (缺氧诱导因子1-α),通过驱动VSMC骨质分化和改变细胞代谢,促进血管化 (VC). 了解HIF-1α对于开发抗化疗法至关重要.
科学领域:
- 生物医学科学 生物医学科学
- 分子生物学分子生物学
- 心血管研究研究心血管研究
背景情况:
- 血管化 (VC) 是一种病理过程,涉及血管光滑肌细胞 (VSMC) 的骨质分化.
- 缺氧诱导因子1-α (HIF-1α) 通过氧气感应通路与VC病原发生有关.
- 通过HIF-1α影响VC的精确机制需要进一步阐明.
研究的目的:
- 研究HIF-1α信号在血管化的发展和进展中的调节作用.
- 探索HIF-1α如何在低氧条件下影响VSMC骨质分化和代谢重编程.
- 确定HIF-1α作为抗化策略的潜在治疗点.
主要方法:
- 在低氧条件下分析HIF-1α稳定性和积累.
- 研究VSMC分化和化标志物的HIF-1α介导调节.
- 检查HIF-1α对细胞代谢的影响,包括糖解和氧化酸化.
- 在VC中探索HIF-1α和其他信号通路 (NF-κB,Notch,Wnt/β-catenin) 之间的交叉通路.
主要成果:
- 缺氧增强了HIF-1α的稳定性,导致它的积累和与化相关的基因表达的激活.
- HIF-1α调节VSMC代谢途径,促进向糖解转变,进一步推动化.
- 在VC进展中,HIF-1α与NF-κB,Notch和Wnt/β-catenin等信号通路之间的复杂相互作用至关重要.
结论:
- HIF-1α是血管化的关键调节剂,影响VSMC骨质分化和代谢状态.
- 涉及HIF-1α的复杂信号网络是开发针对VC的新型治疗干预措施的重要目标.
- 对HIF-1α机制的进一步研究可以解锁预防和治疗血管化的新策略.
相关概念视频
Regulation of Angiogenesis and Blood Supply
2.5K
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...
2.5K
Synthesis and Functions of Calcitonin
1.6K
Calcitonin, a vital polypeptide hormone, regulates calcium levels within body fluids. It is released by the parafollicular cells, also known as C cells, situated in the follicular epithelium of the thyroid gland. Calcitonin responds to fluctuations in blood calcium levels and the influence of gastrointestinal hormones like gastrin and cholecystokinin.
The exact mechanisms by which calcitonin operates in calcium homeostasis remain elusive, but its significance is evident in several vital...
The exact mechanisms by which calcitonin operates in calcium homeostasis remain elusive, but its significance is evident in several vital...
1.6K
Hypoxia
880
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...
880
Hormones and Bone Tissue
2.6K
The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
2.6K
Skeleton and Calcium Homeostasis
4.4K
Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.
4.4K
Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure
171
Oxygen therapy has emerged as a significant tool in enhancing the quality of life for patients suffering from pulmonary arterial hypertension (PAH). While this therapy has principally been studied on patients with significant hypoxemia, this therapeutic approach helps prevent potential organ damage and can be administered in the comfort of one's home.
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue,...
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue,...
171


