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首页> 外文期刊>Cancer Cell >A multigenic program mediating breast cancer metastasis to bone.
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A multigenic program mediating breast cancer metastasis to bone.

机译:介导乳腺癌转移至骨骼的多基因程序。

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摘要

We investigated the molecular basis for osteolytic bone metastasis by selecting human breast cancer cell line subpopulations with elevated metastatic activity and functionally validating genes that are overexpressed in these cells. These genes act cooperatively to cause osteolytic metastasis, and most of them encode secreted and cell surface proteins. Two of these genes, interleukin-11 and CTGF, encode osteolytic and angiogenic factors whose expression is further increased by the prometastatic cytokine TGF beta. Overexpression of this bone metastasis gene set is superimposed on a poor-prognosis gene expression signature already present in the parental breast cancer population, suggesting that metastasis requires a set of functions beyond those underlying the emergence of the primary tumor.
机译:我们通过选择具有较高转移活性的人乳腺癌细胞系亚群并在这些细胞中过表达的功能验证基因来研究溶骨性骨转移的分子基础。这些基因协同作用导致溶骨性转移,并且大多数编码分泌的和细胞表面蛋白。这些基因中的两个,白介素11和CTGF,编码溶骨因子和血管生成因子,其表达因转移性细胞因子TGFβ而进一步增加。该骨转移基因集的过表达被叠加在父母乳腺癌人群中已经存在的预后不良的基因表达标记上,这表明转移所需要的功能超出了原发性肿瘤的潜在功能。

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