颗粒细胞殖民地刺激因子改善了患有慢性病的小鼠内皮原生细胞介导的新血管化
Shao-Yu Tang1, Yi-Chin Lee2, Chien-Wei Tseng3,4
1Department of Medical Education, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan.
Pharmaceutics
|October 28, 2023
概括
颗粒细胞殖民地刺激因子 (G-CSF) 改善了患有慢性病和外周动脉疾病的小鼠的血管生长. G-CSF增强了内皮原生细胞的功能,为患者提供了潜在的治疗益处.
科学领域:
- 心血管生物学 心血管生物学
- 再生医学是一种再生医学.
- 腎臟病學 (nephrology) 是一種醫學專業.
背景情况:
- 慢性病 (CKD) 与外围动脉疾病 (PAD) 风险增加有关.
- 内皮原生细胞 (EPC) 对于修复受损血管至关重要.
- 慢性瘤会损害EPC功能,导致PAD并发症.
研究的目的:
- 为了研究G-CSF对EPC功能和血管生成在CKD后肢缺血的小鼠模型的影响.
- 探索潜在的分子机制,包括IL-10和缺氧信号传递的作用.
主要方法:
- 在小鼠身上进行了子总切除术 (SNx),以诱导CKD.
- 后肢缺血是通过手术诱导的,随后是G-CSF或PBS治疗.
- 评估了四肢再输,EPC调动,血管生成和蛋白质表达.
主要成果:
- 与对照组相比,SNx小鼠的四肢再注射减少,血管生成受损,EPC功能下降.
- 在SNx小鼠中,G-CSF治疗改善了这些参数,与增加的IL-10水平相关.
- 在缺血组织中,G-CSF逆转了关键蛋白质 (IL-10,-STAT3,VEGF,-eNOS) 的下调.
结论:
- 在CKD的背景下,G-CSF通过低氧/IL-10信号通路增强EPC血管功能.
- G-CSF可以抵消CKD对缺血四肢新血管化的有害影响.
- 在使用基于EPC的疗法治疗PAD的CKD患者中,G-CSF有望治疗血管生成缺陷.
相关概念视频
01:15Differentiation of Common Myeloid Progenitor Cells
Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
01:01Regulation of Hematopoietic Stem Cells
All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...