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丁受体+细胞通过合成神经生长因子来促进骨髓内化和再生
Xiang Gao1,2,3, Malea M Murphy4,5, James G Peyer4,6
1National Institute of Biological Sciences, Beijing, China.
Nature cell biology
|November 27, 2023
概括
骨髓中的外周神经对于化疗后的再生至关重要. 列平素受体表达细胞产生神经生长因子 (NGF),维持神经并促进造血和血管修复.
科学领域:
- 血液学 血液学 血液学
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
背景情况:
- 周围神经位于骨髓中,已知会影响骨髓骨质形成后的造血再生.
- 控制这种相互作用的精确调节机制,特别是树皮细胞和神经营养因子的作用,仍然在很大程度上未被描述.
研究的目的:
- 阐明由勒受体表达 (LepR+) 细胞产生的神经生长因子 (NGF) 在维持骨髓神经纤维中的作用.
- 研究外周神经和LepR+细胞在调节骨髓剥离后的造血和血管再生中的相互关系.
主要方法:
- 研究了来自LepR+ stromal细胞的NGF在维持成年骨髓神经纤维中的功能.
- 在神经无神经骨髓模型中评估了造血和血管再生后的骨髓形成.
- 分析了骨髓化对LepR+细胞及其脂肪细胞后代NGF产生的影响.
- 检查了上腺素受体信号传递在中介神经诱导再生中的作用.
主要成果:
- 由素受体表达 (LepR+) 细胞合成的神经生长因子 (NGF) 对于维持成年骨髓神经纤维至关重要.
- 缺乏神经的骨髓表现出正常的稳定状态血液形成,但在骨髓剥离后血液形成和血管再生受损.
- 莱普R+细胞及其脂肪细胞衍生物在骨髓形成后对NGF的产生进行了上调,刺激了神经的生长和增强了再生.
- 神经介导的再生包括LepR+细胞上β2和β3上腺素受体的激活,促进再生生长因子的产生.
结论:
- 周围神经对于骨髓再生至关重要,LepR+细胞通过NGF生产在维持神经完整性方面发挥着关键作用.
- 存在一种相互相互作用,LepR+细胞支持骨髓神经,而神经则通过刺激LepR+细胞释放生长因子来促进再生.
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