Effect of biodegradability on CXCR4 antagonism, transfection efficacy and antimetastatic activity of polymeric Plerixafor.

Effect of biodegradability on CXCR4 antagonism, transfection efficacy and antimetastatic activity of polymeric Plerixafor.
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DOI:
10.1016/j.biomaterials.2014.03.047
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发表时间:
2014-07
期刊:
影响因子:
14
通讯作者:
Oupicky, David
Oupicky, David
中科院分区:
工程技术1区
文献类型:
--
作者:
Li, Jing;Oupicky, David

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趋化因子受体CXCR 4及其唯一配体SDF-1是调节癌细胞侵袭和转移的关键参与者。普乐沙福(AMD 3100)是一种小分子CXCR 4拮抗剂,可阻止SDF-1与CXCR 4结合,具有预防癌症转移的潜力。本研究探讨了最近报道的聚合物普乐沙福(PAMD)的生物降解性对CXCR 4拮抗作用、抗转移活性和PAMD复合物与质粒DNA的转染功效的影响。我们表明,PAMD表现出CXCR 4拮抗作用和抑制癌细胞的体外侵袭,无论其生物降解性。与不可降解PAMD相比,可生物降解PAMD的转染效率显著提高,细胞毒性降低。尽管在体外具有类似的CXCR 4拮抗作用,但在体内实验性肺转移模型中,只有可生物降解的PAMD显示出抗转移活性。
Chemokine receptor CXCR4 and its sole ligand SDF-1 are key players in regulating cancer cell invasion and metastasis. Plerixafor (AMD3100) is a small-molecule CXCR4 antagonist that prevents binding of SDF-1 to CXCR4 and has potential in prevention of cancer metastasis. This study investigates the influence of biodegradability of a recently reported polymeric Plerixafor (PAMD) on CXCR4 antagonism, antimetastatic activity, and transfection efficacy of PAMD polyplexes with plasmid DNA. We show that PAMD exhibits CXCR4 antagonism and inhibition of cancer cell invasion in vitro regardless of its biodegradability. Biodegradable PAMD showed considerably enhanced transfection efficiency and decreased cytotoxicity when compared with the non-degradable PAMD. Despite similar CXCR4 antagonism in vitro, only biodegradable PAMD displayed antimetastatic activity in experimental lung metastasis model in vivo.
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