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通过单细胞多维分析,AML免疫微环境重塑和RNF149驱动药物耐药性的时空空间演变

Xin Wu¹, Zhongguang Wu², Woding Deng³

¹Department of spine surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China.

Journal of translational medicine

|October 27, 2023

概括

E3无素酶RNF149通过改变免疫微环境和损害T细胞功能来促进急性髓性白血病 (AML) 的进展和耐药性. 向RNF149可以克服AML对化疗的耐药性.

科学领域:

免疫学免疫学免疫学
在瘤学瘤学.
遗传学遗传学是一个

背景情况:

急性髓性白血病 (AML) 具有复杂的骨髓免疫微环境的特征.
了解免疫细胞动态对于破译AML发育和耐药性至关重要.
与E3泛素酶相关的基因在白血病发生和治疗反应中发挥作用.

研究的目的:

为了研究AML患者的免疫微环境,有或没有耐化疗.
探索T细胞亚群和E3泛素酶在AML进展和药物耐药性中的作用.
确定AML中抗细胞氨酸 (Ara-C) 耐药性的潜在机制.

主要方法:

整合来自AML患者的多个单细胞RNA测序数据集.
在AML缓解 (AML-CR) 与非缓解 (AML-NR) 队列中对免疫细胞组成和相互作用进行比较分析.
在体内和体外实验中评估RNF149.9的功能作用.

主要成果:

与AML-CR相比,在AML-NR中观察到不同的免疫微环境和改变的T细胞比率 (CD4 +,Treg,CD8 +).
发现E3无素酶RNF149可以加速AML的进展并修改免疫环境.
RNF149诱导CD8+ T细胞功能障碍,促进转化为耗尽的T细胞 (T_Exh),增强耐药细胞的增殖,并抑制细胞亡,导致Ara-C耐药性.

结论:

AML-CR和AML-NR患者的免疫微环境存在显著差异.
RNF149在AML中表现出致瘤功能,有助于疾病进展和治疗耐药性.
RNF149代表了潜在的预后生物标志物和克服AML药物耐药性的治疗目标.

关键词:

急性骨髓性白血病 (AML) 是一种疾病.骨髓的微环境骨髓的微环境免疫细胞是免疫细胞.RNF1499 是一个字母.单细胞测序是一种单细胞测序.

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