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Nature子刊:科学家开发肿瘤融合基因预测新工具

2022-08-18 科技部生物中心 科技部生物中心

该研究表明融合基因可以提供丰富的肿瘤相关抗原,为患者的个性化免疫治疗提供了新的策略。

癌症是由基因改变驱动的,这些改变包括小的变异,如单核苷酸替换、小的插入和缺失以及大的结构变异(SVs)。SVs可以引起基因融合的表达,从而推动肿瘤的发生和发展。近日,德国美因兹大学的研究团队在《Nature Biotechnology》上发表题为“Accurate detection of tumor-specific gene fusions reveals strongly immunogenic personal neo-antigens ”的文章,开发了一套预测临床肿瘤样本特异性基因融合的新工具EasyFuse。

研究人员首先使用17种已有的融合基因分析工具来预测细胞系MCF7、SKBR3中已知的52个融合基因,结果发现现有的分析工具预测效果不佳,仅有5种工具达到了作者设定的最低标准。目前所使用的分析工具忽略了单一工具的鉴定率,灵敏度下降。为了提高对肿瘤相关融合基因的预测效率,研究人员开发了EasyFuse系统。

该系统初始过滤仅保留不一致的读取对,可以减少读取90%以上,缩短运行时间,提高了计算性能、灵敏度及精度。EasyFuse系统能够实现对多种类型样本的融合基因预测,且预测的融合基因与肿瘤类型或含量无关。基于EasyFuse系统的预测结果,研究人员分析验证了融合基因编码作为新抗原的相关性。

该研究为肿瘤相关融合基因的预测提供了更优的技术与平台。同时,该研究也表明了融合基因可以提供丰富的肿瘤相关抗原,为患者的个性化免疫治疗提供了新的策略。

论文链接:

https://doi.org/10.1038/s41587-022-01247-9

注:此研究成果摘自《Nature biotechnology》杂志,文章内容不代表本网站观点和立场,仅供参考。

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    2023-03-13 liye789132251
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    2022-06-16 licz0427
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