罗特西普在SF3B1突变骨髓增生异常综合征治疗中的研究进展

Research progress of luspatercept in the treatment of SF3B1-mutated myelodysplastic syndrome

  • 摘要: 骨髓增生异常综合征(myelodysplastic syndrome,MDS)是一种起源于造血干细胞(hematopoietic stem cells,HSCs)的异质性髓系肿瘤,并有进展为急性髓性白血病(acute myeloid leukemia,AML)的高风险。约90%的MDS患者存在基因突变,其中25%存在SF3B1突变,发生此突变的MDS患者TGF-β通路表达上调,诱导细胞周期阻滞,从而表现为红系无效造血、病态造血。罗特西普可作为配体陷阱捕获TGF-β配体,抑制SMAD2/3通路激活,下调TGF-β通路,促进晚期红细胞成熟。目前,罗特西普已被美国食品药品监督管理局(FDA)批准用于改善低危MDS患者贫血的治疗,并且其在SF3B1突变患者中反应率更高。本文将对罗特西普治疗SF3B1突变相关MDS的现状予以综述,分析其有效性与安全性,以期为临床使用提供治疗策略。

     

    Abstract: Myelodysplastic syndrome (MDS) is a heterogeneous myeloid tumor that originates from hematopoietic stem cells (HSCs) and is associated with a high risk of progression to acute myeloid leukemia (AML). Studies have shown that 90% of patients with MDS have gene mutations, of whom approximately 25% have SF3B1 mutations. In patients with MDS carrying this mutation, the TGF-β pathway is upregulated, inducing cell cycle arrest and thereby leading to erythroid ineffective hematopoiesis and pathological hematopoiesis. Luspatercept can be used as a ligand trap to capture TGF-β ligands, inhibit SMAD2/3 pathway activation, downregulate TGF-β pathway, and promote advanced red blood cell maturation. Currently, it has been approved by the Food and Drug Administration (FDA) for the treatment of anemia in patients with low-risk MDS, and studies have shown that the response rate is higher in patients with SF3B1 mutations. This article will review the current status of luspatercept in the treatment of SF3B1 mutation-related MDS; it will also analyze its effectiveness and safety and provide therapeutic strategies for clinical use.

     

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