The present findings point to mutant HSCs as the cause of BM neuroglial damage that compromises MSC survival and function, critically contributing to MPN pathogenesis. In this sense, the present invention shows that the niche damage triggered by the mutant HSC is essential for the development of a haematopoietic malignancy previously considered to be caused by the HSC alone. Targeting HSC niche-forming MSCs and their neural regulation paves the way to more efficient therapeutic strategies in MPN. For this purpose, the present invention shows that an efficient therapeutic strategy for the treatment of MPN lies on the administration of neuroprotective compounds, such as 4-methylcatechol, capable of protecting BM sympathetic nerve fibers. Additionally, another efficient therapeutic strategy is shown herein as the administration of selective β3-adrenergic agonists such as BRL37344 or Mirabegron, since this strategy will compensate for deficient sympathetic stimulation of nestin+ MSCs.
本发明的研究结果表明,突变造血干细胞是导致间充质干细胞存活和功能受损的基质神经胶质细胞损伤的原因,对骨髓增生性恶性肿瘤的发病机制起着至关重要的作用。从这个意义上说,本发明表明,突变造血干细胞引发的生态位损伤对于以前被认为仅由造血干细胞引起的造血恶性肿瘤的发展至关重要。以造血干细胞龛形成间充质干细胞及其神经调控为靶点,为制定更有效的 M
PN 治疗策略铺平了道路。为此,本发明表明,治疗 M
PN 的有效治疗策略在于施用神经保护化合物,如 4-甲基
邻苯二酚,它能够保护 BM 交感神经纤维。此外,本发明还显示了另一种有效的治疗策略,即使用选择性β3-
肾上腺素能激动剂,如 BRL37344 或 Mirabegron,因为这种策略可以弥补 nestin+ 间充质干细胞交感神经刺激的不足。