NRG4通过ERBB4-YAP1-介导的MMPs下调来抑制乳腺癌转移
Saijun Wang1, Mingwei Guo2, Lingyun Xu3
1Department of Gastrointestinal Surgery, Changzhou Medical Center, The Third Affiliated Hospital of Nanjing Medical University, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Nanjing Medical University, Changzhou, Jiangsu 213000, China.
肥胖加剧了乳腺癌的传播. 来自脂肪组织的神经调节素4 (NRG4) 通过阻断ERBB4-YAP1通路,作为转移抑制剂,提供潜在的治疗标.
科学领域:
- 在瘤学瘤学.
- 代谢过程中的代谢.
- 分子生物学分子生物学
背景情况:
- 肥胖是一个已知的危险因素,加剧了乳腺癌转移.
- 将肥胖与乳腺癌进展联系在一起的分子机制尚未完全理解.
研究的目的:
- 为了确定肥胖驱动的乳腺癌转移的关键调节者.
- 为了阐明参与这个过程的信号通路.
主要方法:
- 使用MMTV-PyMT和4T1的乳腺癌小鼠模型.
- 研究了神经调节素4 (NRG4) 的作用及其与ERBB4-YAP1信号的相互作用.
- 进行了RNA测序,共免疫沉和促进剂测试.
- 评估了重组NRG4 (rNRG4) 对乳腺癌有机体的影响.
主要成果:
- 肥胖会加速乳腺癌的转移.
- 由 inguinal 白脂肪组织 (iWAT) 分泌的NRG4,抑制癌细胞迁移和上皮-介质细胞过渡 (EMT).
- NRG4激活ERBB4,导致pERBB4-pYAP1相互作用和限制YAP1核转位,抑制MMP9和MMP12转录.
- rNRG4降低了乳腺癌器官的生长和侵入性.
结论:
- NRG4通过ERBB4-YAP1通路在与肥胖相关的乳腺癌中起到转移抑制作用.
- NRG4降低了参与入侵的矩阵金属蛋白酶 (MMP) 的下调.
- 准NRG4-ERBB4信号提供了一个潜在的治疗策略,用于肥胖驱动的乳腺癌.
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