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Distinct tumor architectures and microenvironments for the initiation of breast cancer metastasis in the brain
Cancer Cell ( IF 48.8 ) Pub Date : 2024-09-12 , DOI: 10.1016/j.ccell.2024.08.015 Siting Gan 1 , Danilo G Macalinao 2 , Sayyed Hamed Shahoei 2 , Lin Tian 2 , Xin Jin 3 , Harihar Basnet 2 , Catherine Bibby 2 , James T Muller 4 , Pranita Atri 5 , Evan Seffar 5 , Walid Chatila 5 , Ali Karacay 6 , Pharto Chanda 6 , Anna-Katerina Hadjantonakis 4 , Nikolaus Schultz 5 , Edi Brogi 6 , Tejus A Bale 6 , Nelson S Moss 7 , Rajmohan Murali 6 , Dana Pe'er 8 , Joan Massagué 2
Cancer Cell ( IF 48.8 ) Pub Date : 2024-09-12 , DOI: 10.1016/j.ccell.2024.08.015 Siting Gan 1 , Danilo G Macalinao 2 , Sayyed Hamed Shahoei 2 , Lin Tian 2 , Xin Jin 3 , Harihar Basnet 2 , Catherine Bibby 2 , James T Muller 4 , Pranita Atri 5 , Evan Seffar 5 , Walid Chatila 5 , Ali Karacay 6 , Pharto Chanda 6 , Anna-Katerina Hadjantonakis 4 , Nikolaus Schultz 5 , Edi Brogi 6 , Tejus A Bale 6 , Nelson S Moss 7 , Rajmohan Murali 6 , Dana Pe'er 8 , Joan Massagué 2
Affiliation
Brain metastasis, a serious complication of cancer, hinges on the initial survival, microenvironment adaptation, and outgrowth of disseminated cancer cells. To understand the early stages of brain colonization, we investigated two prevalent sources of cerebral relapse, triple-negative (TNBC) and HER2+ (HER2BC) breast cancers. Using mouse models and human tissue samples, we found that these tumor types colonize the brain, with a preference for distinctive tumor architectures, stromal interfaces, and autocrine programs. TNBC models tend to form perivascular sheaths with diffusive contact with astrocytes and microglia. In contrast, HER2BC models tend to form compact spheroids driven by autonomous tenascin C production, segregating stromal cells to the periphery. Single-cell transcriptomics of the tumor microenvironment revealed that these architectures evoke differential Alzheimer’s disease-associated microglia (DAM) responses and engagement of the GAS6 receptor AXL. The spatial features of the two modes of brain colonization have relevance for leveraging the stroma to treat brain metastasis.
中文翻译:
不同的肿瘤结构和微环境有助于乳腺癌在大脑中转移的启动
脑转移是癌症的一种严重并发症,取决于初始生存、微环境适应和播散性癌细胞的生长。为了了解脑定植的早期阶段,我们调查了脑复发的两个常见来源,三阴性 (TNBC) 和 HER2+ (HER2BC) 乳腺癌。使用小鼠模型和人体组织样本,我们发现这些肿瘤类型在大脑中定植,偏爱独特的肿瘤结构、基质界面和自分泌程序。TNBC 模型倾向于形成血管周围鞘,与星形胶质细胞和小胶质细胞有弥散接触。相比之下,HER2BC 模型倾向于形成由自主肌腱蛋白 C 产生驱动的致密球体,将基质细胞分离到外围。肿瘤微环境的单细胞转录组学显示,这些结构引起了不同的阿尔茨海默病相关小胶质细胞 (DAM) 反应和 GAS6 受体 AXL 的参与。两种脑定植模式的空间特征与利用基质治疗脑转移有关。
更新日期:2024-09-12
中文翻译:
不同的肿瘤结构和微环境有助于乳腺癌在大脑中转移的启动
脑转移是癌症的一种严重并发症,取决于初始生存、微环境适应和播散性癌细胞的生长。为了了解脑定植的早期阶段,我们调查了脑复发的两个常见来源,三阴性 (TNBC) 和 HER2+ (HER2BC) 乳腺癌。使用小鼠模型和人体组织样本,我们发现这些肿瘤类型在大脑中定植,偏爱独特的肿瘤结构、基质界面和自分泌程序。TNBC 模型倾向于形成血管周围鞘,与星形胶质细胞和小胶质细胞有弥散接触。相比之下,HER2BC 模型倾向于形成由自主肌腱蛋白 C 产生驱动的致密球体,将基质细胞分离到外围。肿瘤微环境的单细胞转录组学显示,这些结构引起了不同的阿尔茨海默病相关小胶质细胞 (DAM) 反应和 GAS6 受体 AXL 的参与。两种脑定植模式的空间特征与利用基质治疗脑转移有关。