与年龄相关的介质细胞 stromal 细胞衰老与 MGUS 到多发性骨髓瘤的进展有关
Natalya Plakhova1,2, Vasilios Panagopoulos1,2, Melissa D Cantley1,2
1Myeloma Research Laboratory, School of Biomedicine, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia.
Leukemia
|April 22, 2025
概括
骨髓微环境中的与年龄相关的衰老性介质细胞 (MSCs) 可能会导致不确定的意义单克隆性甘马病 (MGUS) 进展为多发性骨髓瘤 (MM). 增加MSC衰老与MGUS进展为MM的风险更高有关.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
背景情况:
- 意义不明的单克隆性淋巴瘤病变 (MGUS) 可以发展为多发性骨髓瘤 (MM).
- 年龄是MGUS发展为MM的风险因素.
- 骨髓微环境随着年龄的增长而变化,可能会影响疾病的进展.
研究的目的:
- 研究骨髓 (BM) 微环境中衰老的介质细胞 (MSC) 在MGUS向MM的进展中的作用.
- 确定MSC衰老是否是导致MGUS进展风险与年龄相关的增加的一个因素.
主要方法:
- 来自MGUS,MM患者和健康的年轻人/老年人的BM MSCs的表征.
- 评估MSC衰老标志物 (形态,β-银酸酶活性,CDKN2A表达,增殖率).
- 在体外共培实验的MSCs与MM细胞系,以评估对增殖的影响.
- 在老化的MSC中对Gremlin1表达的分析.
- 患者中MSC衰老水平与MGUS进展风险的相关性.
主要成果:
- 来自MGUS和MM患者的BMMSC以及老年健康个体,与年轻健康个体相比,表现出衰老的表型.
- 衰老的MSC,与非衰老的MSC不同,不抑制MM细胞系在体外的增殖.
- 在衰老的MSC中,Upregulated Gremlin1可能会促进MM细胞的增殖.
- 在MGUS患者中增加的MSC衰老与进展到MM的风险显著增加有关.
结论:
- 骨髓微环境中与年龄相关的老化MSCs的积累与MGUS向MM的进展有关.
- 衰老的MSC可以通过改变BM微环境并促进MM细胞增殖来促进MM细胞的发展.
- 准MSC衰老可能是一个潜在的治疗策略,以防止MGUS进展到MM.
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