神经生长因子在骨髓瘤微环境中促进VCAM-1-依赖单细胞粘附和M2极化:对larotrectinib治疗的影响
Syuan-Ling Lin1, Shang-Yu Yang2, Chun-Hao Tsai3,4
1Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan.
International journal of biological sciences
|September 9, 2024
概括
神经生长因子 (NGF) 通过驱动M2巨细胞两极分化和增强瘤生长来促进骨髓瘤的进展. TrK抑制剂larotrectinib有效地阻断了这些NGF介导的作用,表明其治疗潜力.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
背景情况:
- 骨髓瘤是儿童和青少年最常见的原发性恶性骨瘤.
- 神经生长因子 (NGF) 与癌症相关的骨疼痛有关,但它们在骨髓瘤中的作用尚不清楚.
研究的目的:
- 研究NGF在骨髓瘤发育和进展中的作用.
- 探索针对骨髓瘤治疗的NGF途径的潜力.
主要方法:
- 在人类骨髓瘤样本中分析NGF和巨细胞标记物.
- 使用细胞培养的体外研究来评估NGF对巨细胞极化和单细胞粘附的影响.
- 在体内异种移植模型评估瘤生长和TrK抑制剂larotrectinib的疗效.
主要成果:
- 在骨髓瘤组织中观察到高的NGF和M2巨细胞标记物.
- NGF刺激促进了M2巨细胞的两极分化,并通过FAK/c-Src信号传递增强了VCAM-1依赖单细胞的粘附.
- 过度表达NGF在体内加速瘤生长,而这种瘤生长在治疗larotrectinib时被显著抑制.
结论:
- NGF通过影响瘤微环境和促进M2巨细胞两极分化,在骨髓瘤进展中起着至关重要的作用.
- 拉罗特雷克提尼布通过对抗NGF驱动的M2巨体表达和抑制骨髓瘤中瘤进展来证明其治疗潜力.
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