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Expression profile of IL-8 and growth factors in breast cancer cells and adipose-derived stem cells (ASCs) isolated from breast carcinoma

机译:IL-8和生长因子在乳腺癌细胞和脂肪干细胞(ASCs)中的表达谱

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Adipose-derived stem cells (ASCs) are regarded as a major player of breast cancer microenvironment. By production of various growth factors and expression of regulatory molecules, it is postulated that ASCs protect breast cancer cells from the host immune responses. In this study, the expressions of insulin-like growth factor-1 (IGF-1), hepatocyte growth factor (HGF), vascular endothelial growth factor (VEGF), CXCL8 (IL-8) in breast cancer cells and adipose-derived stem cells isolated from breast tissue of women with breast cancer were investigated. The results were analyzed comparatively in normal ASCs isolated from healthy normal women. In case of breast cancer tissues, results were analyzed between high stage and low stage patients. The expressions of extracted mRNAs were determined using real-time quantitative RT-PCR. As a result, in breast cancer tissues, IGF-1 and IL-8 mRNAs had 28.6 and 56-fold more expressions in high stage compared to low stage patients. In ASCs, relative quantifications (RQ) of VEGF, IL-8, HGF and IGF-1 was about 2-fold higher in patients than controls. Data of this study conclude that presence of resident ASCs within the scaffold of breast tissue may support breast tumor growth and progression through the expressions of tumor promoting factors.
机译:脂肪干细胞(ASC)被认为是乳腺癌微环境的主要参与者。通过产生各种生长因子和表达调节分子,可以推测ASC保护乳腺癌细胞免受宿主免疫反应。在这项研究中,胰岛素样生长因子-1(IGF-1),肝细胞生长因子(HGF),血管内皮生长因子(VEGF),CXCL8(IL-8)在乳腺癌细胞和脂肪干中的表达从乳腺癌妇女的乳腺组织分离的细胞进行了调查。在从健康正常女性中分离出的正常ASC中对结果进行了比较分析。如果是乳腺癌组织,则对高分期患者和低分期患者进行分析。使用实时定量RT-PCR确定提取的mRNA的表达。结果,在乳腺癌组织中,与低阶段患者相比,高阶段IGF-1和IL-8 mRNA的表达高28.6和56倍。在ASC中,患者的VEGF,IL-8,HGF和IGF-1的相对定量(RQ)比对照组高约2倍。这项研究的数据得出结论,在乳腺组织支架中存在常驻ASC可能通过表达肿瘤促进因子来支持乳腺肿瘤的生长和进展。

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