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Lhx3是维持高级别少突胶质细胞瘤癌细胞发育所必需的。

Lhx3 is required to maintain cancer cell development of high-grade oligodendroglioma.

作者信息

Liu Hongliang, Liu Wei, Zhu Bin, Xu Qiang, Ni Xiaowei, Yu Ji

机构信息

Department of Neurosurgery, Huashan Hospital Baoshan Branch, Fudan University, 1999 West Changjiang Road, Shanghai, 200431, People's Republic of China,

出版信息

Mol Cell Biochem. 2015 Jan;399(1-2):1-5. doi: 10.1007/s11010-014-2209-x. Epub 2014 Nov 16.

DOI:10.1007/s11010-014-2209-x
PMID:25399296
Abstract

The LHX genes play a substantial role in an amount of adorning processes. Potential roles of LHXs have been accepted and approved in an assortment of neoplastic tissues as bump suppressors or promoters depending on bump cachet and types. The aim of this abstraction was to investigate the action role of LHXs in the animal High-grade Oligodendroglioma (HG-OT). The gene announcement changes of LHXs in HG-OT tissues compared with non-cancerous colorectal tissues were detected using application real-time quantitative about-face transcriptase-polymerase alternation acknowledgment (QRT-PCR) assay and immunohistochemistry. And we articulate the gene LHX3 that was decidedly up-regulated in HG-OT by QRT-PCR assay and immunohistochemistry. Furthermore, it was obvious that LHX3 responds to blight corpuscle admeasurement in vitro and LHX3 announcement activated with animated β-catenin levels in HG-OT and β-catenin action was appropriate for LHX3's oncogenic effects.  Mechanistically, LHX3 facilitates TCF4 to bind to β-catenin and facilitates LHX3/TCF4/β-catenin circuitous and trans-active it's after ambition gene. LHX3 mutations that agitate the LHX3-β-catenin alternation partially anticipate its action in bump cells. All in all, LHX3 is a frequently activated bump apostle that actuates Wnt/β-catenin signaling in blight beef of HG-OT.

摘要

LHX基因在许多修饰过程中发挥着重要作用。根据肿瘤特征和类型,LHXs在多种肿瘤组织中作为肿瘤抑制因子或促进因子的潜在作用已得到认可和批准。本研究的目的是探讨LHXs在人类高级别少突胶质细胞瘤(HG-OT)中的作用。使用实时定量逆转录聚合酶链反应(QRT-PCR)检测和免疫组织化学方法,检测HG-OT组织与非癌性结直肠组织中LHXs的基因表达变化。并且我们通过QRT-PCR检测和免疫组织化学方法明确了在HG-OT中显著上调的LHX3基因。此外,很明显LHX3在体外对癌细胞大小有反应,并且在HG-OT中LHX3的表达随着β-连环蛋白水平的升高而激活,β-连环蛋白的活性对于LHX3的致癌作用是必需的。从机制上讲,LHX3促进TCF4与β-连环蛋白结合,促进LHX3/TCF4/β-连环蛋白复合物并激活其下游靶基因。破坏LHX3-β-连环蛋白相互作用的LHX3突变部分阻止其在癌细胞中的作用。总而言之,LHX3是一种频繁激活的肿瘤促进因子,可激活HG-OT肿瘤细胞中的Wnt/β-连环蛋白信号通路。

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