在肝细胞癌中利用替代拼接用于现成的mRNA新抗原疫苗
Haichao Zhao1,2, Yifei Cheng1, Tiancheng Zhang1
1Department of Hepatobiliary Surgery and Transplantation, Liver Cancer Institute and Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Zhongshan Hospital, Fudan University, Shanghai, China.
Cell research
|November 29, 2025
概括
肝细胞癌中的异常拼接事件产生更多的免疫新抗原,而不是突变. 这些异常拼接新抗原显示出开发针对肝癌的广泛适用的mRNA疫苗的前景.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 遗传学 遗传学 是一个
背景情况:
- 肝细胞癌 (HCC) 免疫疗法面临着挑战,因为患者对突变衍生的新抗原的覆盖范围有限.
- 向瘤特异性抗原至关重要,但目前的方法不足以广泛治疗HCC.
研究的目的:
- 在HCC.中识别异常拼接 (AS) 事件中的新型新抗原.
- 评估AS衍生新抗原的免疫性和治疗潜力,用于HCC疫苗.
- 探索在HCC免疫治疗中克服抗原呈现挑战的策略.
主要方法:
- 综合分析了来自279名HCC患者的多奥米克数据.
- 从AS转录中识别和选择34种高度免疫的新抗原.
- 在HCC模型中对编码AS新抗原的mRNA疫苗的体内验证.
主要成果:
- 异常拼接事件发生的频率是HCC的体质突变的59倍.
- 与突变衍生的新抗原 (4.40%) 相比,AS衍生的新抗原具有显著更广泛的患者适用性 (50.94%).
- 编码AS新抗原的mRNA疫苗在体内显示出显著的瘤回归和增强的T细胞透.
结论:
- 异常拼接是用于HCC免疫治疗的丰富免疫新抗原的来源.
- 来自AS的新抗原适合开发用于HCC的现成mRNA疫苗.
- 克服抗原呈现障碍,如TAP缺乏症,对于使用AS新抗原进行有效的HCC免疫疗法至关重要.
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