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跨物种基因组学为人类肌肉侵入性膀癌提供了洞察力
Kim Wong1, Federico Abascal1, Latasha Ludwig2
1Experimental Cancer Genetics, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SA, UK.
Genome biology
|August 27, 2023
概括
狗和猫尿癌 (UC) 模型为人类肌肉侵入性膀癌 (MIBC) 提供了洞察力. 跨物种分析确定了牛UC中共享的驱动基因和独特的突变特征,与皮暴露有关.
科学领域:
- 比较性瘤学研究
- 基因组学就是基因组学.
- 癌症研究 癌症研究
背景情况:
- 人类肌肉侵入性膀癌 (MIBC) 是一种具有不良预后的侵袭性癌症.
- 狗,猫和牛会发展出类似于人类MIBC的尿路细胞癌 (UC).
- 动物模型为自发性和致癌性UC提供了洞察力.
研究的目的:
- 将狗,猫和牛UC的基因组资料与人类MIBC进行比较.
- 在物种中识别保存的驱动基因和新的突变特征.
- 评估动物模型,以了解人类膀癌症.
主要方法:
- 狗和猫UC的全外体序列测序.
- 与人类MIBC数据进行基因组比较分析.
- 在牛UC中突变特征的表征.
主要成果:
- 与人类MIBC相比,犬类和猫类UC的突变率较低,缺乏APOBEC签名.
- 他们发现了保存的驱动基因 (ARID1A,KDM6A,TP53,FAT1,NRAS).
- 牛UC表现出与皮和ptaquiloside相关的独特突变特征.
结论:
- 狗和猫的UC是人类MIBC的相关模型,有助于识别保存的驱动因素.
- 牛UC为致癌物诱导的膀癌提供了一个模型.
- 跨物种分析对于理解人类和动物之间的UC有价值.
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