激素受体阳性HER2-阴性/MammaPrint高-2乳腺癌与三阴性乳腺癌非常相似
Alejandro Rios-Hoyo1, Kaitlyn Xiong2, Jiawei Dai1
1Yale Cancer Center, Yale School of Medicine, New Haven, Connecticut.
概括
激素受体阳性 (HR+) /HER2阴性MammaPrint高-2 (MP-H2) 乳腺癌与三阴性 (TN) 乳腺癌有着共同的分子和临床特征. 这些发现表明,类似的治疗策略可能有利于HR+/MP-H2和TN乳腺癌.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 乳腺癌研究研究 乳腺癌研究
背景情况:
- 通过MammaPrint (MP) 测定,将乳腺癌分为不同的风险组.
- 高风险的MP癌症进一步分为MP-H1和MP-H2亚组.
- 了解这些子组内的差异对于治疗分层至关重要.
研究的目的:
- 研究激素受体阳性 (HR+) /HER2阴性MP-H1,MP-H2和三阴性 (TN) MP-H1/MP-H2乳腺癌之间的临床和分子区别.
- 在这些定义的子组中比较基因表达模式和治疗反应.
主要方法:
- 在I-SPY2试验中利用了742种HER2-阴性乳腺癌的治疗前基因表达数据.
- 使用MammaPrint试验分配预后风险类别.
- 采用主要成分分析和差异基因表达分析来评估转录的相似性和差异性.
主要成果:
- HR+/MP-H2瘤表现出与TN/MP-H2癌症的转录相似性.
- 与HR+/MP-H2和HR+/MP-H1相比,HR+/MP-H2和TN/MP-H2之间差异表达的基因较少.
- 在HR+/MP-H2和TN/MP-H2癌症中观察到细胞周期,DNA修复和免疫透通路的高表达.
结论:
- HR+/MP-H2乳腺癌与三阴性乳腺癌具有显著的分子和临床相似性.
- 这些相似之处表明,类似的治疗方法可能对HR+/MP-H2和TN乳腺癌亚型都有效.
- 具有残留疾病的MP-H2癌症无论ER状态如何,都显示出不良的无事件生存率.
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