首页> 外文期刊>Journal of Cellular Physiology >Overexpression of Large-Conductance Calcium-Activated Potassium Channels in Human Glioblastoma Stem-Like Cells and Their Role in Cell Migration
【24h】

Overexpression of Large-Conductance Calcium-Activated Potassium Channels in Human Glioblastoma Stem-Like Cells and Their Role in Cell Migration

机译:过度的Large-ConductanceCalcium-Activated钾离子通道在人类恶性胶质瘤干细胞样细胞和他们的作用细胞迁移

获取原文
获取原文并翻译 | 示例
           

摘要

Glioblastomas (GBMs) are brain tumors characterized by diffuse invasion of cancer cells into the healthy brain parenchyma, and establishment of secondary foci. GBM cells abundantly express large-conductance, calcium-activated potassium (BK) channels that are thought to promote cell invasion. Recent evidence suggests that the GBM high invasive potential mainly originates from a pool of stem-like cells, but the expression and function of BK channels in this cell subpopulation have not been studied. We investigated the expression of BK channels in GBM stem-like cells using electrophysiological and immunochemical techniques, and assessed their involvement in the migratory process of this important cell subpopulation. In U87-MG cells, BK channel expression and function were markedly upregulated by growth conditions that enriched the culture in GBM stem-like cells (U87-NS). Cytofluorimetric analysis further confirmed the appearance of a cell subpopulation that co-expressed high levels of BK channels and CD133, as well as other stem cell markers. A similar association was also found in cells derived from freshly resected GBM biopsies. Finally, transwell migration tests showed that U87-NS cells migration was much more sensitive to BK channel block than U87-MG cells. Our data show that BK channels are highly expressed in GBM stem-like cells, and participate to their high migratory activity. (C) 2016 Wiley Periodicals, Inc.
机译:件(本研究)是脑瘤癌细胞扩散入侵的特征健康的大脑实质,建立二级疫源地。大量表达large-conductance,calcium-activated钾通道(BK)被认为促进细胞入侵。证据表明,“绿带运动”高侵袭性可能主要源于一个水池茎状的细胞,但表达式和函数BK通道的细胞亚群没有被研究过。BK通道在GBM干细胞样细胞电生理和免疫化学的技术和评估他们的参与迁徙过程的重要细胞程序。表达和功能明显调节生长条件,丰富的文化“绿带运动”(U87-NS)干细胞样细胞。分析进一步证实的外观细胞亚群中的高水平BK通道和CD133,以及其他细胞标记。发现在细胞来自刚切除“绿带运动”活检。表明U87-NS细胞迁移得多敏感BK通道比U87-MG细胞块。我们的数据表明,BK通道高度在GBM茎状的细胞中表达,参与高迁徙活动。期刊、公司。

著录项

相似文献

  • 外文文献
  • 中文文献
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