Tumor-derived exosomal miR-1247-3p induces cancer-associated fibroblast activation to foster lung metastasis of liver cancer.

Tumor-derived exosomal miR-1247-3p induces cancer-associated fibroblast activation to foster lung metastasis of liver cancer.
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肿瘤源性外泌体 MIR-1247-3P 诱导癌症相关成纤维细胞激活,促进肝癌肺转移

DOI:
10.1038/s41467-017-02583-0
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发表时间:
2018-01-15
影响因子:
16.6
通讯作者:
Wang H
Wang H
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Fang T;Lv H;Lv G;Li T;Wang C;Han Q;Yu L;Su B;Guo L;Huang S;Cao D;Tang L;Tang S;Wu M;Yang W;Wang H

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肿瘤源性成分和转移小生境中基质之间的通讯在促进癌症转移中具有关键作用。然而,肿瘤细胞用于控制转移性小生境形成的机制尚未完全了解。在这里,我们报告说,在肺转移小生境,高转移性肝细胞癌(HCC)细胞表现出更大的能力,将正常成纤维细胞转化为癌症相关的成纤维细胞(CAFs)比低转移性肝癌细胞。我们发现高转移性HCC细胞分泌直接靶向B4 GALT 3的外泌体miR-1247- 3 p,导致成纤维细胞中β1-整联蛋白-NF-κB信号转导的激活。活化的CAF通过分泌促炎细胞因子(包括IL-6和IL-8)进一步促进癌症进展。临床数据显示高血清外泌体miR-1247- 3 p水平与HCC患者的肺转移相关。这些结果表明,肿瘤细胞和成纤维细胞之间的细胞间串扰是由控制HCC肺转移的肿瘤源性外泌体介导的,为预防和治疗癌症转移提供了潜在的靶点。
The communication between tumor-derived elements and stroma in the metastatic niche has a critical role in facilitating cancer metastasis. Yet, the mechanisms tumor cells use to control metastatic niche formation are not fully understood. Here we report that in the lung metastatic niche, high-metastatic hepatocellular carcinoma (HCC) cells exhibit a greater capacity to convert normal fibroblasts to cancer-associated fibroblasts (CAFs) than low-metastatic HCC cells. We show high-metastatic HCC cells secrete exosomal miR-1247-3p that directly targets B4GALT3, leading to activation of β1-integrin–NF-κB signaling in fibroblasts. Activated CAFs further promote cancer progression by secreting pro-inflammatory cytokines, including IL-6 and IL-8. Clinical data show high serum exosomal miR-1247-3p levels correlate with lung metastasis in HCC patients. These results demonstrate intercellular crosstalk between tumor cells and fibroblasts is mediated by tumor-derived exosomes that control lung metastasis of HCC, providing potential targets for prevention and treatment of cancer metastasis.
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