在NF1相关的恶性外围神经瘤中,CXCR4/CXCL12介导着自身隐性细胞周期进展
Wei Mo1, Jian Chen, Amish Patel
1Department of Developmental Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9133, USA.
Cell
|February 26, 2013
概括
恶性外围神经膜瘤 (MPNSTs) 涉及神经纤维素瘤1型 (NF1). 研究人员发现CXCR4受体驱动MPNST生长,这表明它是这种侵略性癌症的潜在治疗标.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 恶性外围神经膜瘤 (MPNSTs) 是与神经纤维素瘤1型 (NF1) 相关的侵袭性软组织瘤.
- MPNSTs表现出高的治疗耐药性和不良预后.
研究的目的:
- 为了确定驱动NF1缺陷MPNST发展的分子途径.
- 探索CXCR4作为MPNSTs的潜在治疗点.
主要方法:
- 在小鼠模型中进行比较转录组分析.
- 研究了CXCR4和CXCL12信号通路 (PI3K,β-catenin).
- 利用shRNA和药理抑制来抑制CXCR4活性在体外和体内.
主要成果:
- 在NF1缺乏的MPNST中,CXCR4的表达很高,但在前体细胞中没有表达.
- 通过CXCR4/CXCL12信号传递,通过D1环和细胞循环进展促进MPNST生长.
- 在小鼠模型中,CXCR4抑制降低了MPNST细胞生长和瘤发生.
- 在人类的MPNST中,已激活的通路被保留.
结论:
- 在NF1相关的MPNST发育中,CXCR4起着至关重要的作用.
- 准CXCR4为MPNSTs提供了一个有前途的治疗策略.
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