MCP-1/CCR-2 axis in adipocytes and cancer cell respectively facilitates ovarian cancer peritoneal metastasis.

MCP-1/CCR-2 axis in adipocytes and cancer cell respectively facilitates ovarian cancer peritoneal metastasis.
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脂肪细胞和癌细胞中的MCP-1/CCR-2轴分别促进卵巢癌腹膜转移

DOI:
10.1038/s41388-019-1090-1
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发表时间:
2020-02
期刊:
影响因子:
8
通讯作者:
Chen G
Chen G
中科院分区:
医学1区
文献类型:
--
作者:
Sun C;Li X;Guo E;Li N;Zhou B;Lu H;Huang J;Xia M;Shan W;Wang B;Li K;Weng D;Xu X;Gao Q;Wang S;Hu J;Lu Y;Mills GB;Chen G

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卵巢癌选择性地转移到大网膜,导致与卵巢癌相关的不良预后。然而,强调这一倾向的机制和对抗这一过程的治疗方法尚未完全阐明。在此,我们发现,单核细胞趋化蛋白-1与卵巢癌细胞上的同源受体Ccr-2结合,通过激活PI3K/AKT/mTOR通路及其下游效应因子HIF-1α和血管内皮生长因子-A,在细胞系、异种移植和转基因小鼠模型中促进迁移和大网膜转移。MCP-1抗体可显著降低荷瘤小鼠的肿瘤负担,提高小鼠存活时间。有趣的是,二甲双胍至少部分地通过抑制脂肪细胞分泌MCP-1来减少大网膜转移,这与对癌细胞的直接作用无关。综上所述,这表明MCP-1/CCR-2轴的一个新的靶点可能有利于卵巢癌患者。
Ovarian cancer selective metastasizes to the omentum contributing to the poor prognosis associated with ovarian cancer. However, the mechanism underlining this propensity and therapeutic approaches to counter this process has not been fully elucidated. Here, we show that MCP-1 produced by omental adipocytes binding to its cognate receptor CCR-2 on ovarian cancer cells facilitates migration and omental metastasis by activating the PI3K/AKT/mTOR pathway and its downstream effectors HIF-1α and VEGF-A in cell lines, xenografts, and transgenic murine models. MCP-1 antibody significantly decreased tumor burden and increased survival of mice in vivo. Interestingly, metformin decreased omental metastasis at least partially by inhibiting MCP-1 secretion from adipocytes independent of direct effects on cancer cells. Together this suggests a novel target of MCP-1/CCR-2 axis that could benefit ovarian cancer patients.
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