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相关概念视频

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The hematopoietic stem cells or HSCs are multipotent, meaning they can differentiate and give rise to all blood and immune cells. HSCs are maintained in the quiescent stage until an external stimulus initiates their differentiation. The multipotent HSCs exist as two heterogeneous populations, long-term repopulating cells (LTRC) and short-term repopulating cells (STRC). The two HSC populations have different surface markers or receptors and are classified based on quiescence and long-term...
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Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
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The stem cell niche is the dynamic microenvironment where stem cells reside. Inside these niches, the cells may remain undifferentiated, undergo high self-renewal, or become lineage-specific progenitors. Stem cells coexist with other niche cells, such as stromal cells. They also interact closely with the ECM. Cell-cell and cell-matrix communication occur via adhesion molecules or soluble factors that signal the stem cells and determine their fate. Stromal cells also provide survival signals to...
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Commitment is the  process whereby stem cells:
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Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
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Radiosensitivity of Cancer Stem Cells in Lung Cancer Cell Lines
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在NEDD4/FLRT2轴调节NSCLC细胞干细胞性.

Yuping Yang1,2, Fei Yan3, Ziwei Gao1,2

  • 1Department of Respiratory and Critical Care Medicine, School of Clinical Medicine and The First Affiliated Hospital of Chengdu Medical College, School of Clinical Medicine, of Chengdu Medical College, Chengdu, China.

Frontiers in pharmacology
|October 24, 2024
PubMed
概括
此摘要是机器生成的。

富含纤维素蛋白白的跨膜2 (FLRT2) 抑制非小细胞肺癌 (NSCLC) 的干和瘤发生. E3酶NEDD4降解FLRT2,促进NSCLC的进展,并抵消FLRT2.

关键词:
在FLRT2上.在 Nedd4 中使用.降解降解降解降解降解.非小细胞肺癌的肺癌.树干性 树干性

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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:

  • 肺癌是癌症相关死亡的主要原因,非小细胞肺癌 (NSCLC) 构成重大治疗挑战.
  • 癌症干细胞 (CSCs) 在NSCLC的发展和进展中起着至关重要的作用.
  • 神经元表达的发育下调4 (NEDD4) 和纤维内素蛋白丰富的跨膜2 (FLRT2) 轴需要对其在NSCLC干系中的作用进行调查.

研究的目的:

  • 研究NEDD4-FLRT2轴对NSCLC癌症干的影响.
  • 阐明NEDD4和FLRT2调节NSCLC干细胞特性的潜在分子机制.

主要方法:

  • 西部斑块和RT-qPCR用于评估NSCLC组织和干细胞中的FLRT2表达.
  • 球体形成试验和茎状性标记物分析以确认NSCLC的茎状性.
  • 细胞增殖,迁移,亡测定和异种移植小鼠模型,以评估抗瘤效应和体内瘤发生.
  • 同免疫沉 (Co-IP) 试验证实了NEDD4和FLRT2.2之间的相互作用.

主要成果:

  • 发现FLRT2表达在NSCLC组织,细胞和NSCLC干细胞中减少.
  • FLRT2上调抑制NSCLC干细胞增殖,球体形成和耐药性,同时促进细胞亡.
  • NEDD4被确定为一种促进FLRT2蛋白的无化和降解的E3酶.
  • 在体外和体外,NEDD4的过度表达抵消了FLRT2对NSCLC干细胞的抑制作用.

结论:

  • 在NSCLC中,FLRT2通过抑制癌症干的功能作为瘤抑制剂.
  • 通过增强FLRT2.2的降解,NEDD4促进NSCLC干细胞瘤发生.
  • 针对NEDD4-FLRT2轴可能为NSCLC治疗提供一种新的治疗策略.