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Tissue Engineered bone-mimetic 3D in vitro model to study breast cancer bone metastasis

机译:组织工程仿生3D体外模型研究乳腺癌骨转移

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Conclusions: Here we report the development of novel PCL/in situ HAPclay 3D in vitro tissue engineering bone model for breast cancer bone metastasis. In this study, we have sequentially cultured breast cancer cells with mesenchymal stem cells on PCL/in situ HAPclay scaffolds to recreate bone-mimetic environment conducive for the growth of cancer cells. WST-1 results showed good survival and proliferation of both cancer and mesenchymal stem cells in our system. ALP results are in good agreement with WST-1 results. Also, scanning electron micrographs revealed the formation of tumors when breast cancer cells were sequentially cultured with mesenchymal stem cells. Furthermore, gene expression analysis showed that cancer cells have acquired enhanced metastatic ability upon sequentially culturing them with mesenchymal stem cells. Thus a novel bone-mimetic 3D cancer model has been developed that could be used a test-bed for drug studies and also evaluation of metastasis.
机译:结论:在这里我们报告了新型的PCL /原位HAPclay 3D体外组织工程骨模型用于乳腺癌骨转移的开发。在这项研究中,我们已经在PCL /原位HAPclay支架上相继培养了具有间充质干细胞的乳腺癌细胞,以重建有利于癌细胞生长的仿骨环境。 WST-1结果显示我们系统中的癌症和间充质干细胞均具有良好的存活率和增殖能力。 ALP结果与WST-1结果非常吻合。而且,当用间充质干细胞顺序培养乳腺癌细胞时,扫描电子显微照片揭示了肿瘤的形成。此外,基因表达分析表明,癌细胞与间充质干细胞相继培养后具有增强的转移能力。因此,已经开发出了一种新型的仿骨3D癌症模型,该模型可以用作药物研究以及转移评估的试验床。

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