Dependency of colorectal cancer on a TGF-β-driven program in stromal cells for metastasis initiation.

Dependency of colorectal cancer on a TGF-β-driven program in stromal cells for metastasis initiation.
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DOI:
10.1016/j.ccr.2012.08.013
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发表时间:
2012-11-13
期刊:
影响因子:
50.3
通讯作者:
Batlle E
Batlle E
中科院分区:
医学1区
文献类型:
--
作者:
Calon A;Espinet E;Palomo-Ponce S;Tauriello DV;Iglesias M;Céspedes MV;Sevillano M;Nadal C;Jung P;Zhang XH;Byrom D;Riera A;Rossell D;Mangues R;Massagué J;Sancho E;Batlle E

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大部分结肠直肠癌(CRC)显示TGF-β途径的突变失活,但矛盾的是,它们的特征在于TGF-β产生升高。在这里,我们揭示了一个由TGF-β在微环境中诱导的促转移程序,该程序与治疗后CRC复发的高风险相关。TGF-β对基质细胞的活性增加了CRC细胞的器官定殖效率,而用TGFBR 1的药理学抑制剂处理的小鼠对转移形成有弹性。TGF-β刺激的癌症相关成纤维细胞(CAF)分泌IL 11触发肿瘤细胞中的GP 130/STAT 3信号传导。这种串扰赋予转移性细胞存活优势。转移启动对TGF-β基质程序的依赖性可用于改善CRC的诊断和治疗。
A large proportion of colorectal cancers (CRCs) display mutational inactivation of the TGF-beta pathway yet paradoxically, they are characterized by elevated TGF-beta production. Here, we unveil a prometastatic programme induced by TGF-beta in the microenvironment that associates with a high-risk of CRC relapse upon treatment. The activity of TGF-beta on stromal cells increases the efficiency of organ colonization by CRC cells whereas mice treated with a pharmacological inhibitor of TGFBR1 are resilient to metastasis formation. Secretion of IL11 by TGF-beta-stimulated cancer-associated fibroblasts (CAFs) triggers GP130/STAT3 signalling in tumour cells. This crosstalk confers a survival advantage to metastatic cells. The dependency on the TGF-beta stromal programme for metastasis initiation could be exploited to improve the diagnosis and treatment of CRC.
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