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首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Degradable poly(apigenin) polymer inhibits tumor cell adhesion to vascular endothelial cells
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Degradable poly(apigenin) polymer inhibits tumor cell adhesion to vascular endothelial cells

机译:可降解的聚(芹菜素)聚合物抑制肿瘤细胞粘附到血管内皮细胞

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摘要

Cancer and the inflammatory system share a complex intertwined relationship. For instance, in response to an injury or stress, vascular endothelial cells will express cell adhesion molecules as a means of recruiting leukocytes. However, circulating tumor cells (CTCs) have been shown to highjack this expression for the adhesion and invasion during the metastatic cascade. As such, the initiation of endothelial cell inflammation, either by surgical procedures (cancer resection) or chemotherapy can inadvertently increase the metastatic potential of CTCs. Yet, systemic delivery of anti-inflammatories, which weaken the entire immune system, may not be preferred in some treatment settings. In this work, we demonstrate that a long-term releasing flavone-based polymer and subsequent nanoparticle delivery system can inhibit tumor cell adhesion, through the suppression of endothelial cell adhesion molecule expression. The degradation of a this anti-inflammatory polymer provides longer term, localized release profile of active therapeutic drug in nanoparticle form as compared with that of the free drug, permitting more targeted anti-metastatic therapies. (c) 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 104B: 1438-1447, 2016.
机译:癌症和炎症系统有着复杂的相互联系。例如,响应损伤或压力,血管内皮细胞将表达细胞粘附分子,作为募集白细胞的一种手段。但是,已显示循环肿瘤细胞(CTC)在转移级联过程中高表达了这种表达,用于粘附和侵袭。因此,通过外科手术(癌症切除)或化学疗法引发的内皮细胞炎症可无意中增加CTC的转移潜能。然而,在某些治疗环境中,可能不希望全身性使用消炎药来削弱整个免疫系统。在这项工作中,我们证明了长期释放基于黄酮的聚合物和随后的纳米颗粒递送系统可以通过抑制内皮细胞粘附分子的表达来抑制肿瘤细胞的粘附。与游离药物相比,该抗炎聚合物的降解提供了纳米颗粒形式的活性治疗药物的长期,局部释放特性,从而可以进行更有针对性的抗转移治疗。 (c)2015 Wiley Periodicals,Inc.J Biomed Mater Res B部分:Appl Biomater,104B:1438-1447,2016。

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