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The mammalian target of rapamycin  (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1  (mTORC1) and mTOR complex 2  (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast,  mTORC2 consists of a...
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RRM2是一种假定生物标志物,通过PI3K/AKT/mTOR途径促进膀癌的进展.

Linfa Guo1, Yiqiao Zhao1, Xiaojie Bai1

  • 1Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.

Journal of cellular physiology
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PubMed
概括

核酸减少酶M2 (RRM2) 在膀癌 (BLCA) 中升高,与预后不佳相关. 抑制RRM2通过PI3K/AKT/mTOR途径影响细胞周期和细胞亡,抑制瘤生长和迁移.

关键词:
在 AKT AKT 里面.在EMT中,EMT是EMT.在RRM2中使用RRM2.膀癌:膀癌是一种癌症.细胞循环中的细胞循环.在mTOROR中使用mTOR.

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科学领域:

  • 在瘤学瘤学.
  • 分子生物学分子生物学
  • 癌症研究 癌症研究

背景情况:

  • 膀癌 (BLCA) 由于复发率和进展率高,因此存在重大挑战.
  • 识别预后生物标志物对于改善BLCA患者的治疗结果至关重要.
  • 了解推动BLCA进展的分子机制至关重要.

研究的目的:

  • 研究RRM2在BLCA中的预后意义和功能作用.
  • 阐明RRM2影响BLCA进展的潜在分子机制.
  • 评估RRM2作为BLCA潜在的预后生物标志物和治疗点.

主要方法:

  • 在TCGA数据集和BLCA组织微阵列中分析RRM2表达.
  • 在体外测试 (CCK8,殖民地形成,伤口愈合,Transwell) 来评估RRM2在细胞增殖和迁移中的作用.
  • 西方斑块和基因组丰富分析,以调查相关的分子途径,包括EMT,细胞亡,细胞循环和PI3K/AKT/mTOR信号传递.

主要成果:

  • 在BLCA组织和细胞中,RRM2表达显著上调.
  • 升高的RRM2与晚期瘤阶段,更高的等级和较差的患者存活率相关.
  • 阻断RRM2抑制BLCA细胞的增殖和迁移,诱导细胞亡,并导致G0/G1细胞周期停止.
  • 通过激活PI3K/AKT/mTOR通路,RRM2促进BLCA的进展.

结论:

  • 在BLCA中,RRM2是重要的瘤蛋白,与侵袭性疾病和不良预后有关.
  • 通过促进增殖,迁移和抑制细胞亡和细胞循环停止,RRM2促进BLCA的进展.
  • 在激活PI3K/AKT/mTOR通路方面,RRM2的作用突出了其作为BLCA治疗点的潜力.