...
首页> 外文期刊>Cell and Tissue Research >Gene expression profiling of human mesenchymal stem cells chemotactically induced with CXCL12.
【24h】

Gene expression profiling of human mesenchymal stem cells chemotactically induced with CXCL12.

机译:CXCL12化学趋化诱导人间充质干细胞的基因表达谱。

获取原文
获取原文并翻译 | 示例
           

摘要

In situ tissue engineering is a promising approach in regenerative medicine, with the possibility that adult stem or progenitor cells will be guided chemotactically to a tissue defect and subsequently differentiate into the surrounding tissue type. Mesenchymal stem cells (MSC) represent attractive candidate cells. Chemokines such as CXCL12 (SDF-1alpha) chemoattract MSC, but little is known about the molecular processes involved in the chemotaxis and migration of MSC. In this study, MSC recruitment by CXCL12 was investigated by genome-wide microarray analysis. The dose-dependent migration potential of bone-marrow-derived MSC toward CXCL12 was measured in an in vitro assay, with a maximum being recorded at a concentration of 1,000 nM CXCL12. Microarray analysis of MSC stimulated with CXCL12 and non-stimulated controls showed 30 differentially expressed genes (24 induced and six repressed). Pathway analysis revealed 11 differentially expressed genes involved in cellular movement and cytokine-cytokine receptor interaction, including those for migratory inducers such as the chemokines CXCL8 and CCL26, the leukocyte inhibitory factor, secretogranin II, and prostaglandin endoperoxide synthase 2. These results were confirmed by real-time polymerase chain reaction for selected genes. The obtained data provide further insights into the molecular mechanisms involved in chemotactic processes in cell migration and designate CXCL12 as a promising candidate for in situ recruitment in regenerative therapies.
机译:原位组织工程是再生医学中的一种有前途的方法,有可能将成年干细胞或祖细胞趋化性地引导至组织缺陷,然后分化为周围的组织类型。间充质干细胞(MSC)代表有吸引力的候选细胞。趋化因子如CXCL12(SDF-1alpha)趋化MSC,但对MSC趋化性和迁移所涉及的分子过程知之甚少。在这项研究中,通过全基因组微阵列分析研究了由CXCL12募集的MSC。在体外测定中测量了骨髓来源的MSC向CXCL12的剂量依赖性迁移潜能,最大浓度为1,000 nM CXCL12。用CXCL12刺激的MSC和未刺激的对照的微阵列分析显示了30个差异表达的基因(24个诱导基因和6个抑制基因)。通路分析揭示了11种差异表达的基因,参与细胞运动和细胞因子-细胞因子受体的相互作用,包括趋化因子CXCL8和CCL26,白细胞抑制因子,促分泌素II和前列腺素内过氧化物合酶2等迁移诱导因子的表达。选定基因的实时聚合酶链反应。获得的数据为细胞迁移中趋化过程涉及的分子机制提供了进一步的见解,并将CXCL12指定为再生疗法中原位募集的有希望的候选者。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号