健康的BRCA1/2突变携带者在乳腺组织中表现出CAF前特征和改变的上皮标记物表达
Francesco De Leonardis1, Maria Antonietta Di Noia1, Antonella Turchiano2
1Department of Bioscience, Biotechnologies and Environment, University of Bari "Aldo Moro", 70125, Bari, Italy.
Scientific reports
|September 24, 2025
概括
生殖系BRCA1/2突变在早期重新编程乳腺组织层和上皮. 这项研究确定了BRCA1/2载体中的癌前CAF细胞,揭示了树叶微环境.
科学领域:
- 在瘤学瘤学.
- 遗传学 遗传学 是一个
- 癌症生物学 癌症生物学
背景情况:
- 在BRCA-1和BRCA-2 (BRCA1/2) 的生殖基因突变显著提高乳腺癌的风险.
- 在BRCA1/2载体中早期瘤发生机制尚未完全理解.
- 以前的研究集中在上皮细胞上,忽视了树皮微环境的作用.
研究的目的:
- 为了研究BRCA1/2突变在乳腺癌早期发病期间对树皮微环境的影响.
- 为了分析波多普拉宁 (PDPN),CD10和编程细胞死亡连接体2 (PD-L2) 在前瘤组织中的表达.
- 探索这些标记物在表皮和树皮两部分的作用.
主要方法:
- 来自BRCA1/2突变载体的前新生乳腺组织的分析.
- 专注于PDPN,CD10和PD-L2.2的表达模式.
- 检查了在上皮和脑膜区间的变化.
主要成果:
- 在BRCA1/2携带体中发现了癌前关联纤维细胞 (CAF前) 细胞 (PDPNhigh/CD10+) 的高患病率.
- 在前CAF中观察到PDPN,CD10和PD-L2的过度表达,这表明早期的 stromal 重塑.
- 在BRCA1/2组织中发现了突,基底和光线前代细胞的改变PD-L2表达,在BRCA1/2组织中发现了不同的模式.
结论:
- 由于BRCA1/2突变,乳腺癌可能是通过早期对树皮和上皮两部分的重新编程引起的.
- 胸膜微环境在BRCA1/2-关联乳腺癌的发病中起着至关重要的作用.
- 同时对表皮和肌层变化的研究对于BRCA1/2载体乳腺癌风险评估至关重要.
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