化学RNA揭示了潜在的新抗原,用于开发乳腺癌瘤疫苗
Brandon Mistretta1, Sakuni Rankothgedera1, Micah Castillo1
1Department of Biology & Biochemistry, University of Houston, Houston, TX, United States.
Frontiers in immunology
|September 25, 2023
概括
我们在乳腺癌中发现了新的融合转录,发现了独特的新抗原. 一个新抗原触发了强烈的免疫反应,为新的乳腺癌疫苗提供了潜在的目标.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 生物信息学是一种生物信息学.
背景情况:
- 融合转录越来越被认为是瘤特异性新抗原的来源.
- 识别免疫新抗原对于开发有效的癌症疫苗至关重要.
研究的目的:
- 开发一种策略,从融合蛋白序列中识别免疫性新抗原候选物.
- 评估这些候选人作为乳腺癌疫苗的潜在目标.
主要方法:
- 挖掘不和的配对末端从乳腺瘤组织中读取,以发现癌症特定的融合转录.
- 使用MHCnuggets对新序列的结合亲和力预测.
- 评估CD8+ T细胞的反应,使用体外酶相关免疫位 (ELISpot) 试验.
主要成果:
- 在三种亚型 (TNBC,HER2+,HR+) 的75种乳腺瘤中发现了20种新的融合转录.
- 从NSFP1-LRRC37A2融合转录中鉴定出15个新抗原,预计将与35个独特的MHC I类等位基因结合.
- 一种新抗原在体外引发了强大的CD8+T细胞免疫反应.
结论:
- 已经建立了一个框架,用于从融合转录中识别免疫性新抗原候选人.
- NSFP1-LRRC37A2融合转录及其衍生的新抗原代表了针对特定乳腺癌患者的潜在疫苗策略.
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