促炎性细胞因子差异性诱导胰腺,乳腺和结肠直肠癌细胞中的细胞间道化纳米管道和细胞迁移
Leili Baghaie1, David A Bunsick1, Elizabeth Skapinker2
1Department of Biomedical & Molecular Sciences, Queen's University, Kingston, ON K7L 3N6, Canada.
Biomolecules
|February 27, 2026
概括
手术后的细胞因子通过形成道化纳米管 (TNTs) 来促进癌细胞迁移和转移. 奥赛塔米维尔酸盐 (OP) 抑制了TNT的形成,并减少了癌细胞的迁移,这表明了新的治疗点.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
背景情况:
- 在瘤切除后的术后期可以增加循环瘤细胞和转移.
- 炎症性细胞因子在癌症患者的手术后2-24小时增加.
- 细胞因子可以协调道纳米管 (TNT) 的形成,以增强癌细胞迁移.
研究的目的:
- 调查特定的细胞因子是否触发TNT形成和癌细胞迁移.
- 评估奥塞尔塔米维尔酸盐 (OP) 对TNT形成和细胞迁移的影响.
主要方法:
- 使用光显微镜和图像分析来测量PANC-1,MCF-7和SW620细胞中的TNT,这些细胞被TGF-β1,IL-6和HGF处理.
- 使用伤试验评估细胞迁移.
- 测量了OP治疗对细胞因子诱导的TNT形成和细胞迁移的影响.
主要成果:
- TGF-β1,IL-6和HGF在胰腺 (PANC-1) 和乳腺 (MCF-7) 癌细胞中显著增加了TNT的形成,但在结直肠 (SW620) 细胞中没有.
- 在PANC-1和MCF-7细胞中,OP治疗显著减少了TNT的形成.
- PANC-1细胞在细胞因子治疗后12小时内显示出完整的伤口关闭;OP降低了这一速度. 在SW620和MCF-7细胞中,伤口关闭的变化很小.
- 在用细胞因子治疗的三个细胞系中,OP显著减少了伤的关闭.
结论:
- 周围的细胞因子活动通过TNT形成促进癌症转移.
- 奥塞塔米维尔酸盐 (OP),是一种哺乳动物神经aminidase-1 (NEU-1) 的抑制剂,破坏TNT的形成和癌细胞迁移.
- 这些发现表明,潜在的治疗策略是针对外科手术期间的细胞因子诱导的转移.
相关概念视频
Cancer Cell Migration through Invadopodia
3.4K
Invadosome is a broad category of cell surface structures with proteolytic activity that degrades the extracellular matrix (ECM). Invadosomes are present in normal cell types, including macrophages, endothelial cells, and neurons, as well as tumor cells. Although the macrophage podosomes and tumor cell invadopodia are classified as invadosomes, they have different structures, molecular pathways, and functions. Podosomes are short structures that last for a few minutes. However,...
3.4K
Intracellular Signaling Affects Focal Adhesions
3.7K
Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
Some...
3.7K
The Tumor Microenvironment
8.0K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
8.0K
Cell-matrix's Response to Mechanical Forces
3.7K
In animal cells, the extracellular matrix allows cells within tissues to withstand external stresses and transmits signals from the outside of the cell to the inside. The extracellular matrix is extensive, and its composition varies between different types of tissues. For example, the reticular fibers and ground substance make up the ECM in loose connective tissue, while collagen and bone minerals make up the ECM of bone tissue.
Anchoring junctions mechanically attach a cell to the...
Anchoring junctions mechanically attach a cell to the...
3.7K
Interactions Between Signaling Pathways
7.4K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
7.4K


