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一种新的生物信息学方法揭示了癌症/Testis基因在基底类乳腺瘤中的合作

Marthe Laisné¹, Brianna Rodgers¹, Sarah Benlamara¹

¹Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France.

|March 12, 2024

概括

新的研究确定了HORMAD1和CT83作为关键的癌症/Testis基因,与侵袭性基底性乳腺癌有关. 它们的 de novo 激活和协同作用为难以治疗的瘤提供了潜在的新诊断和治疗点.

科学领域:

在瘤学瘤学.
遗传学遗传学是一个
生物信息学是一种生物信息学.

背景情况:

乳腺癌是全球女性最常见的癌症.
基底类乳腺瘤的预后最差,需要新的诊断和治疗策略.
通常受限制的癌症/Testis (CT) 基因在瘤中异常表达,具有诊断和治疗潜力.

研究的目的:

开发一种生物信息方法来分析CT基因错误表达在乳腺瘤中.
为了识别新的CT基因标记物,特别是基底类乳腺癌亚型.
调查已识别的CT基因在乳腺癌中的功能作用和表观遗传调节.

主要方法:

在乳腺瘤数据集中CT基因表达的生物信息分析.
机器学习识别CT基因与基底类乳腺瘤相关.
实验室研究评估基因表达,表观遗传调节 (DNA甲基化) 和功能影响 (干性,转录资料).

主要成果:

在Luminal和HER-2阳性瘤中确定了新的CT基因标记物,其中一些预测了化疗反应.
发现HORMAD1和CT83作为两个CT基因,与基底类乳腺瘤最相关.
在瘤细胞中证明了HORMAD1和CT83的 de novo,不可逆转的激活,通过DNA甲基化抑制.
在实验室中显示了HORMAD1和CT83在增加茎度和激活特定的转录形状上的协同作用.

结论:

HORMAD1和CT83是关键的CT基因,在基底乳腺瘤中功能合作.
这些基因被 de novo 激活和表观遗传调节,为瘤发育提供了洞察力.
这些发现为开发针对侵袭性乳腺癌的新诊断和治疗方法提供了基础.

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