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针对SALL4与癌症免疫治疗的HLA I类受限制TCR进行向

Myriam Ben Khelil¹, Maxime Fredon¹, Nawfel Adib¹

¹Université Marie et Louis Pasteur, EFS, INSERM UMR1098 RIGHT, Besançon, France.

Cancer immunology research

|October 20, 2025

概括

异常的瘤基因SALL4驱动了攻击性的癌症. 研究人员开发了SALL4特异性T细胞受体 (TCR) 工程T细胞,显示出有效的固体癌症免疫疗法与降低毒性的承诺.

科学领域:

在瘤学瘤学.
免疫学免疫学免疫学
分子生物学分子生物学

背景情况:

异常的SALL4瘤基因表达与癌症干,侵略性表型和患者生存率差的相关性.
在结直肠癌组织中观察到SALL4过度表达,包括原发性瘤和肝转移.

研究的目的:

研究SALL4作为癌症免疫治疗的治疗点.
开发和评估SALL4特异性T细胞受体 (TCR) 工程T细胞,用于固体癌症治疗.

主要方法:

在结直肠癌中SALL4表达的转录分析.
鉴定一种由SALL4衍生的 (S9V) 诱导CD8+T细胞反应.
隔离了一种特定于SALL4的TCR,该TCR识别了HLA-A2.2.中的S9V.
开发TCR工程T细胞和体外/体外疗效和毒性评估.

主要成果:

在结直肠癌组织和转移中,SALL4过度表达.
在癌症患者中,S9V引发了特定的CD8+T细胞反应,而不是健康的捐赠者.
在实验室中,SALL4-TCR T 细胞对表达SALL4的瘤细胞表现出细胞毒性,并在体内减少瘤生长.
萨尔4-TCRT细胞对造血干细胞没有任何毒性.

结论:

用SALL4特异性TCR进行工程的T细胞是固体癌症的潜在免疫疗法.
这种方法需要进一步的临床开发来治疗各种固体瘤.

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