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Updated: Jun 22, 2025

Visualization, Quantification, and Mapping of Immune Cell Populations in the Tumor Microenvironment

Visualization, Quantification, and Mapping of Immune Cell Populations in the Tumor Microenvironment

Published on: March 25, 2020

单细胞空间多组学揭示了瘤微环境在抗免疫治疗的抗癌性方面的脆弱性

Camelia Quek¹, Aditya Pratapa², Xinyu Bai¹

¹Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia; Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia; Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.

|June 30, 2024

概括

对免疫疗法的异质耐药性在癌症中构成了挑战. 这项研究揭示了"抗免疫"的瘤微环境和与免疫治疗结果相关的特定黑色素瘤亚克隆.

科学领域:

在瘤学瘤学.
免疫学免疫学免疫学
基因组学就是基因组学.

背景情况:

对免疫疗法的异质耐药性是癌症治疗中的一个重要障碍,经常导致疾病进展和死亡.
了解瘤微环境在免疫疗法耐药性中的作用,对于开发有效的治疗策略至关重要.

研究的目的:

为从转移性黑色素瘤患者的瘤进行纵向多模式单细胞分析,这些患者对免疫治疗的反应各不相同.
建立一个整合转录组,细胞表位和空间数据的工具包,以便更深入地了解瘤.

主要方法:

使用CITE-seq和40倍复数的PhenoCycler组织成像用于纵向多模式单细胞分析.
开发了一套多式一体化工具包,以对齐转录组,细胞表位和空间信息.
分析了转移性黑色素瘤患者的瘤,这些患者表现出先天性耐药性,获得性耐药性或对免疫治疗的反应.

主要成果:

鉴定出一种"抗免疫性"的瘤微环境,其特点是瘤周边的淋巴状聚合物和减少的T细胞透.
在耐药病例中观察到MITF+SPARCL1+和CENPF+黑色素瘤亚克隆在治疗后出现.
发现,在淋巴结合物中B细胞相关特征的丰富与改善患者存活率相关.

结论:

纵向多模式分析为免疫治疗期间瘤微环境的动态提供了关键的见解.
特定的黑色素瘤亚克隆和淋巴细胞聚合物组成与免疫疗法耐药性和患者结局有关.
这些发现可以为开发针对瘤与免疫相互作用的新型治疗干预措施提供信息.

关键词:

CP: 癌症癌症癌症 CP: 免疫学免疫学癌症异质性的异质性检查点抑制剂的检查点抑制剂免疫逃避免疫逃避免疫疗法免疫疗法淋巴结合物的聚合物黑色素瘤是一种黑色素瘤.一个单细胞测序.空间绘制地图治疗耐药性治疗耐药性瘤微环境是一个微环境.

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