TEAD抑制会改变肺部的免疫微环境,减轻转移的发生
bioRxiv : the preprint server for biology
|March 10, 2025
概括
新型TEAD抑制剂通过重编程瘤微环境,显著减少三阴性乳腺癌肺转移. 这些抑制剂可以增强抗瘤免疫力,而不会影响原发性瘤生长,从而提供了一种新的治疗策略.
科学领域:
- 癌症生物学 癌症生物学
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
背景情况:
- 涉及YAP/TAZ和TEAD转录因子的Hippo途径在原发性瘤进展中起作用.
- 三阴性乳腺癌 (TNBC) 是一种具有有限治疗选择的侵袭性亚型,通常以转移为特征.
研究的目的:
- 研究新型TEAD抑制剂 (iTEAD) 对TNBC模型中的肺转移增长的影响.
- 阐明iTEAD对瘤微环境和免疫反应影响的机制.
主要方法:
- 用新型TEAD抑制剂 (iTEAD) 治疗TNBC小鼠模型.
- 对瘤细胞增殖,原发性瘤生长和肺转移的增长进行分析.
- 在肺组织中评估免疫细胞透 (CD8+ T 细胞,Th1 CD4+ T 细胞),巨细胞表型 (M2 类) 和细胞因子信号传递 (IL-12,IL-2).
- 与iTEAD治疗的T细胞和癌细胞进行共同培养实验,并进行3D瘤球测试.
主要成果:
- iTEAD显著降低了TNBC模型中的肺转移的增长,主要是通过 stromal 免疫信号变化.
- TEAD抑制在体外没有影响TNBC细胞增殖或体内主要瘤生长.
- iTEAD降低了正常肺部的前瘤炎症途径,增强了IL-12信号传递,并增加了肺部居民巨细胞的IL-12产量.
- 在TNBC模型中,iTEAD抑制了前瘤炎症,M2型巨细胞,并增加了CD8+ T细胞和Th1 CD4+ T细胞的透,恢复了免疫反应的微环境.
- 接受iTEAD治疗的T细胞表现出增强的细胞毒性和脱粒化,由增加的IL-2活性介导.
- TEAD抑制增强了T细胞巨细胞交叉声和3D瘤球中的抗瘤活性,通过IL-12中和可逆.
结论:
- TEAD抑制逆转了肺微环境中的免疫抑制,促进了抗瘤免疫反应.
- iTEAD展示了一种涉及先天性和适应性免疫细胞的多方面的机制,导致肺转移的消除.
- TEAD抑制剂通过调节免疫场景来管理TNBC肺转移是一种有希望的治疗策略.
更多相关视频
07:39The Establishment of a Lung Colonization Assay for Circulating Tumor Cell Visualization in Lung Tissues
Published on: June 16, 2018
9.2K
07:44Studying the Effects of Tumor-Secreted Paracrine Ligands on Macrophage Activation using Co-Culture with Permeable Membrane Supports
Published on: November 28, 2019
7.4K
相关概念视频
The Tumor Microenvironment
6.5K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
6.5K
Metastasis
5.5K
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
5.5K
