rAAV-Mediated Overexpression of SOX9 and TGF-β via Carbon Dot-Guided Vector Delivery Enhances the Biological Activities in Human Bone Marrow-Derived Mesenchymal Stromal Cells.

rAAV-Mediated Overexpression of SOX9 and TGF-β via Carbon Dot-Guided Vector Delivery Enhances the Biological Activities in Human Bone Marrow-Derived Mesenchymal Stromal Cells.
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DOI:
10.3390/nano10050855
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发表时间:
2020-04-28
期刊:
Nanomaterials (Basel, Switzerland)
影响因子:
--
通讯作者:
Cucchiarini M
Cucchiarini M
中科院分区:
其他
文献类型:
--
作者:
Meng W;Rey-Rico A;Claudel M;Schmitt G;Speicher-Mentges S;Pons F;Lebeau L;Venkatesan JK;Cucchiarini M

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支架辅助的基因治疗是一种非常有前途的工具,以治疗关节软骨病变后,直接交付的软骨候选序列。本研究的目的是检查通过临床适应的方法向人骨髓间充质干细胞(hMSCs)提供高度软骨修复剂、软骨特异性性别决定区Y型高迁移率族9(SOX 9)转录因子或转化生长因子β(TGF-β)的可行性和益处,独立的重组腺相关病毒(rAAV)载体与碳量子点(CD),一类新的碳占主导地位的纳米材料配制。使用由1-柠檬酸和五亚乙基六胺(CD-1)、2-柠檬酸、聚六亚乙基六胺(CD-2)、聚六亚乙基六胺(CD-3)、聚六亚乙基六胺(CD-4)、聚六亚乙基六胺(CD-5)、聚六亚乙基六胺(CD-6)、聚六亚乙基六胺(CD-7)、聚六亚乙基六胺(CD-8)、聚六亚乙基六胺(CD-8)、聚六亚乙基六胺(CD-9)和聚六亚乙基六胺(CD-10)制备的四种不同CD实现报告基因rAAV-lacZ载体的有效复合和释放。乙二醇单甲醚(MW 550 Da)和N,N-二甲基乙二胺(CD-2); 3-柠檬酸,支化聚(乙撑亚胺)(MW 600 Da),和聚(乙二醇)单甲醚(MW 2kDa)(CD-3);和4-柠檬酸和支链聚(乙烯亚胺)(MW 600 Da)(CD-4),允许hMSC的遗传修饰。在纳米颗粒中,CD-2显示出用于rAAV递送的最佳能力(相对于游离载体处理,lacZ表达增加高达2.2倍,其中100%细胞活力持续至少10天,检查的最长时间点)。施用治疗通过CD-2在hMSC中的(SOX 9,TGF-β)rAAV载体导致每个独立转基因的有效过表达,促进增强的细胞增殖(TGF-β)和软骨基质沉积(糖胺聚糖,II型胶原蛋白)至少21天(CD-2缺乏rAAV或与rAAV-lacZ相关),同时有利地限制不期望的I型和X型胶原沉积。这些结果揭示了CD引导的rAAV基因在hMSC中作为安全的、非侵入性的系统用于翻译策略以增强软骨修复的潜力。
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