In situ-formable, dynamic crosslinked poly(ethylene glycol) carrier for localized adeno-associated virus infection and reduced off-target effects.

In situ-formable, dynamic crosslinked poly(ethylene glycol) carrier for localized adeno-associated virus infection and reduced off-target effects.
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DOI:
10.1038/s42003-023-04851-w
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发表时间:
2023-05-16
影响因子:
5.9
通讯作者:
Kurita, Masakazu
Kurita, Masakazu
中科院分区:
生物学2区
文献类型:
--
作者:
Kato, Motoi;Ishikawa, Shohei;Shen, Qi;Du, Zening;Katashima, Takuya;Naito, Mitsuru;Numahata, Takao;Okazaki, Mutsumi;Sakai, Takamasa;Kurita, Masakazu

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腺相关病毒(AAV)是用于体内基因转导的有效载体,并且预期AAV的局部治疗应用,例如用于皮肤溃疡。基因表达的定位对于基因治疗的安全性和有效性至关重要。我们假设,基因表达可以通过设计生物材料使用聚(乙二醇)(PEG)作为载体定位。在这里,我们使用小鼠皮肤溃疡模型显示了一种设计的PEG载体有效地将基因表达定位在溃疡表面上,并减少了深层皮肤层和肝脏中的脱靶效应,作为评估远端脱靶效应的代表性器官。溶解动力学导致AAV基因转导的定位。设计的PEG载体可能适用于使用腺相关病毒的体内基因治疗,特别是用于局部表达。一种基于PEG的载体,称为PEG粘液,能够将局部重组腺相关病毒(rAAV)递送到小鼠皮肤溃疡,并具有有限的脱靶递送,展示了一种高度局部化基因转导的新方法。
The adeno-associated virus (AAV) is a potent vector for in vivo gene transduction and local therapeutic applications of AAVs, such as for skin ulcers, are expected. Localization of gene expression is important for the safety and efficiency of genetic therapies. We hypothesized that gene expression could be localized by designing biomaterials using poly(ethylene glycol) (PEG) as a carrier. Here we show one of the designed PEG carriers effectively localized gene expression on the ulcer surface and reduced off-target effects in the deep skin layer and the liver, as a representative organ to assess distant off-target effects, using a mouse skin ulcer model. The dissolution dynamics resulted in localization of the AAV gene transduction. The designed PEG carrier may be useful for in vivo gene therapies using AAVs, especially for localized expression. A PEG-based carrier, named PEG slime, enables localized recombinant adeno-associated virus (rAAV) delivery to mouse skin ulcer with limited off target delivery, demonstrating a new method for highly localized gene transduction.
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