超homocysteinemia通过GH-PI3K-Akt轴增强了巨核细胞分化和血栓形成的潜力
Wenjing Lei1,2, Zhuoliang Liu1, Zhiyuan Su1
1The State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, North Guangshou Avenue 1838, Guangzhou, 510515, Guangdong, People's Republic of China.
Journal of hematology & oncology
|July 27, 2023
概括
高水平的homocysteine (HHcy) 通过通过GH-PI3K-Akt通路促进巨核细胞分化来增加血小板数量. 黑色素可以逆转这种由HHcy诱导的血栓形成.
科学领域:
- 血液学 血液学 血液学
- 血管生物学 血管生物学
- 内分泌学 在内分泌学.
背景情况:
- 超同胞蛋白血症 (HHcy) 与血栓性疾病和增强的血小板激活有关.
- HHcy对血栓形成,即血小板生成过程的特定影响仍然基本上未被描述.
研究的目的:
- 研究HHcy对血栓形成和血小板计数的影响.
- 阐明HHcy介导作用对巨核子形成的分子机制.
- 为了探索潜在的治疗干预HHcy相关的血栓细胞瘤.
主要方法:
- 分析HHcy小鼠和斑马鱼模型中的血小板计数,以及大量高血压患者的队列.
- 单细胞RNA测序 (scRNA-seq) 用于描述基因表达和细胞异质性在巨型kariopoiesis.
- 在体外和体内实验中评估GH-PI3K-Akt轴和血栓形成素 (TPO) 信号传导的作用.
主要成果:
- 在临床前模型和高血压患者中,HHcy与血小板数量的增加有关.
- HHcy通过独立于TPO的GH-PI3K-Akt途径促进了巨核细胞的分化和成熟.
- 通过抑制这种信号通路,氨酸的使用有效地逆转了由HHcy诱导的血栓细胞形成的过程.
结论:
- 在促进血栓形成方面,HHcy起着重要的,以前未被认可的作用.
- GH-PI3K-Akt信号通路是HHcy诱导的血栓细胞形成的一个关键媒介.
- 黑色素是一种潜在的治疗策略,可以减轻与HHcy相关的血栓形成风险.
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