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Core‐shell nanofibrous membrane of polycaprolactone‐hyaluronic acid as a promising platform for the efficient capture and release of circulating tumor cells
Polymers for Advanced Technologies ( IF 3.1 ) Pub Date : 2020-11-12 , DOI: 10.1002/pat.5158
Sahar Asghari 1 , Matin Mahmoudifard 1
Affiliation  

According to the increase of deaths due to the metastasis of primary tumors in many cancers, a smart system is required to recognize the initialization of metastasis, immediately and efficiently. In this paper, we introduce a novel platform based on the electrospun nanofibrous membranes (NFMs) for efficient capture of circulating tumor cells (CTCs) and then release them for further study. It is important to note that the detection of CTC must be specific and accurate to start treatment safely with the correct dose of the drug. The number of present CTCs in blood can determine the progress of cancer and its capability for metastasis. Therefore, the early detection of cancer and using lower doses of drugs leads to more efficient treatment with lower side effects of drugs, whereas the treatment of secondary tumors require more drug and cost. For this purpose, we generated a NFM from polycaprolactone/hyaluronic acid (HA) and with a core‐shell structure to achieve CTC trapping with the application of early diagnosis of metastasis. Besides, we proved that the retrieval of these cells is possible using hyaluronidase. Our results demonstrated that the cancerous cell capture efficacy using this kind of core‐shell NFMs is about 75% (compare to 25% in PCL NFM) which is a significant ratio. Also, it was proved that around 70% of these captured cells can release via hyaluronidase (in comparison with 20% for PCL NFM) with protecting their viability.

中文翻译:

聚己内酯-透明质酸的核壳纳米纤维膜是有效捕获和释放循环肿瘤细胞的有前途的平台

根据许多癌症中由于原发肿瘤转移导致的死亡人数的增加,需要一种智能系统来立即有效地识别转移的开始。在本文中,我们介绍了一种基于电纺纳米纤维膜(NFM)的新型平台,可有效捕获循环肿瘤细胞(CTC),然后将其释放进行进一步研究。重要的是要注意,CTC的检测必须是​​特定且准确的,才能使用正确剂量的药物安全地开始治疗。血液中目前存在的四氯化碳的数量可以决定癌症的进展及其转移能力。因此,癌症的早期发现和使用较低剂量的药物导致更有效的治疗,同时具有较低的药物副作用,而继发性肿瘤的治疗则需要更多的药物和成本。为此,我们使用聚己内酯/透明质酸(HA)生成了NFM,并具有核-壳结构,可通过早期诊断转移来实现CTC捕获。此外,我们证明了使用透明质酸酶可以回收这些细胞。我们的结果表明,使用这种核壳NFM捕获癌细胞的功效约为75%(与PCL NFM的25%相比),这一比例非常高。此外,还证明了这些被捕获的细胞中约有70%可以通过透明质酸酶释放(相比PCL NFM为20%),并且能保护它们的生存能力。我们证明使用透明质酸酶可以回收这些细胞。我们的结果表明,使用这种核壳NFM捕获癌细胞的功效约为75%(与PCL NFM的25%相比),这一比例非常高。此外,还证明了这些被捕获的细胞中约有70%可以通过透明质酸酶释放(相比PCL NFM为20%),并且能保护它们的生存能力。我们证明使用透明质酸酶可以回收这些细胞。我们的结果表明,使用这种核壳NFM捕获癌细胞的功效约为75%(与PCL NFM的25%相比),这一比例非常高。此外,还证明了这些被捕获的细胞中约有70%可以通过透明质酸酶释放(相比PCL NFM为20%),并且能保护它们的生存能力。
更新日期:2020-11-12
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