Redirecting Vesicular Transport to Improve Nonviral Delivery of Molecular Cargo.

Redirecting Vesicular Transport to Improve Nonviral Delivery of Molecular Cargo.
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重定向囊泡转运以改善分子货物的非卵病递送。

DOI:
10.1002/adbi.202000059
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发表时间:
2020-08
影响因子:
4.1
通讯作者:
Yuan F
Yuan F
中科院分区:
生物学3区
文献类型:
--
作者:
Mao M;Chang CC;Pickar-Oliver A;Cervia LD;Wang L;Ji J;Liton PB;Gersbach CA;Yuan F

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细胞工程在很大程度上依赖于用于将分子货物递送到细胞中的病毒载体,因为与非病毒载体相比,它们具有上级效率。然而,病毒是免疫原性的并且制造昂贵,并且具有有限的递送能力。非病毒递送方法避免了这些限制,但目前对于临床应用是低效的。这项工作表明,质粒DNA,mRNA,睡美人转座子和核糖核蛋白的非病毒递送的效率可以通过用不可降解的糖(NDS),如蔗糖,海藻糖和棉子糖预处理细胞而显著提高。这种增强是通过将NDS掺入细胞膜中介导的,导致溶酶体扩大和形成大的(>500 nm)两性体样小体(ALB)。亚细胞结构的变化将货物转运到ALB而不是溶酶体,减少了细胞中的货物降解。数据表明,用NDS预处理细胞是改善生物医学应用中非病毒货物递送的有前途的方法。
Cell engineering relies heavily on viral vectors for delivery of molecular cargo into cells due to their superior efficiency compared to non-viral ones. However, viruses are immunogenic and expensive to manufacture, and have limited delivery capacity. Non-viral delivery approaches avoid these limitations but are currently inefficient for clinical applications. This work demonstrates that the efficiency of non-viral delivery of plasmid DNA, mRNA, Sleeping Beauty transposon, and ribonucleoprotein can be significantly enhanced through pretreatment of cells with the non-degradable sugars (NDS), such as sucrose, trehalose, and raffinose. The enhancement is mediated by incorporation of the NDS into cell membranes, causing enlargement of lysosomes and formation of large (>500 nm) amphisome-like bodies (ALBs). The changes in subcellular structures redirect transport of cargo to ALBs rather than to lysosomes, reducing cargo degradation in cells. The data indicate that pretreatment of cells with NDS is a promising approach to improve non-viral cargo delivery in biomedical applications.
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