莫迪-2疫苗刺激CD4对同位素化自我表位素的反应,作为固体癌症的治疗方法
Abdullah A Al-Omari1, Katherine W Cook1, Peter Symonds1
1Scancell Ltd; Bellhouse Building, Sanders Road, Oxford Science Park, Oxford, OX4 4GD, UK.
NPJ vaccines
|November 28, 2024
概括
一种新型疫苗 - - 莫迪-2 - - 针对同位素抗原来刺激抗瘤免疫力. 这种自组装纳米粒子疫苗在临床前癌症模型中显示出强烈的T细胞反应和疗效,表明临床潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 生物技术是生物技术.
背景情况:
- 瘤微环境的压力可以改变自身蛋白质,产生像homocitrulline这样的新表位.
- 类人素绕过自我耐受性,成为癌症免疫治疗的目标.
- 疫苗中使用的疏水性会给制造和溶解性带来挑战.
研究的目的:
- 评估一种针对 homocitrullinated 抗原进行抗瘤免疫的新型疫苗.
- 使用自组装纳米粒子技术 (SNAPvaxTM) 优化疫苗的输送.
- 评估莫迪-2疫苗的制造易度和T细胞诱导.
主要方法:
- 开发了Modi-2,一种使用SNAPvaxTM共同发放四种同位素和辅助剂的疫苗.
- 设计纳米粒子以精确的尺寸和组成,优化制造和T细胞反应.
- 在黑色素瘤,结肠直肠癌和乳腺癌的临床前小鼠模型中测试了Modi-2的疗效.
主要成果:
- 莫迪-2在B16黑色素瘤,CT26结肠直肠和4T1乳腺癌模型中显示出强烈的T细胞反应和显著的抗瘤免疫力.
- 疫苗配方在刺激针对已建立瘤的强烈免疫反应方面被证明是有效的.
- 发现Modi-2的向抗原在人类肺部,结肠直肠,乳腺和前列腺瘤中表达.
结论:
- 使用SNAPvaxTM技术的Modi-2疫苗有效地刺激了抗瘤免疫力.
- 莫迪-2显示出治疗多种癌症的前景,包括黑色素瘤,结肠直肠癌和乳腺癌.
- 疫苗在各种癌症症候群中的临床转化潜力得到了临床前数据的支持.
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