Aliphatic Quaternary Ammonium Functionalized Nanogels for Gene Delivery
Gene therapy is a promising treatment for hereditary diseases, as well as acquired genetic diseases, including cancer. Facing the complicated physiological and pathological environment in vivo, developing efficient non-viral gene vectors is needed for their clinical application. Here, poly(<i>...
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oai:doaj.org-article:d7ab6458ceae48b59d21b301d3a768ab2021-11-25T18:42:26ZAliphatic Quaternary Ammonium Functionalized Nanogels for Gene Delivery10.3390/pharmaceutics131119641999-4923https://doaj.org/article/d7ab6458ceae48b59d21b301d3a768ab2021-11-01T00:00:00Zhttps://www.mdpi.com/1999-4923/13/11/1964https://doaj.org/toc/1999-4923Gene therapy is a promising treatment for hereditary diseases, as well as acquired genetic diseases, including cancer. Facing the complicated physiological and pathological environment in vivo, developing efficient non-viral gene vectors is needed for their clinical application. Here, poly(<i>N</i>-isopropylacrylamide) (p(NIPAM)) nanogels are presented with either protonatable tertiary amine groups or permanently charged quaternized ammonium groups to achieve DNA complexation ability. In addition, a quaternary ammonium-functionalized nanogel was further provided with an aliphatic moiety using 1-bromododecane to add a membrane-interacting structure to ultimately facilitate intracellular release of the genetic material. The ability of the tertiary amine-, quaternized ammonium-, and aliphatic quaternized ammonium-functionalized p(NIPAM) nanogels (i.e., NGs, NGs-MI, and NGs-BDD, respectively) to mediate gene transfection was evaluated by fluorescence microscopy and flow cytometry. It is observed that NGs-BDD/pDNA complexes exhibit efficient gene loading, gene protection ability, and intracellular uptake similar to that of NGs-MI/pDNA complexes. However, only the NGs-BDD/pDNA complexes show a notable gene transfer efficiency, which can be ascribed to their ability to mediate DNA escape from endosomes. We conclude that NGs-BDD displays a cationic lipid-like behavior that facilitates endosomal escape by perturbing the endosomal/lysosomal membrane. These findings demonstrate that the presence of aliphatic chains within the nanogel is instrumental in accomplishing gene delivery, which provides a rationale for the further development of nanogel-based gene delivery systems.Huaiying ZhangDamla KeskinWilly H. de Haan-VisserGuangyue ZuPatrick van RijnInge S. ZuhornMDPI AGarticlenanogelsgene deliveryendosomal escapequaternizationaliphatic chainsPharmacy and materia medicaRS1-441ENPharmaceutics, Vol 13, Iss 1964, p 1964 (2021) |
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nanogels gene delivery endosomal escape quaternization aliphatic chains Pharmacy and materia medica RS1-441 |
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nanogels gene delivery endosomal escape quaternization aliphatic chains Pharmacy and materia medica RS1-441 Huaiying Zhang Damla Keskin Willy H. de Haan-Visser Guangyue Zu Patrick van Rijn Inge S. Zuhorn Aliphatic Quaternary Ammonium Functionalized Nanogels for Gene Delivery |
description |
Gene therapy is a promising treatment for hereditary diseases, as well as acquired genetic diseases, including cancer. Facing the complicated physiological and pathological environment in vivo, developing efficient non-viral gene vectors is needed for their clinical application. Here, poly(<i>N</i>-isopropylacrylamide) (p(NIPAM)) nanogels are presented with either protonatable tertiary amine groups or permanently charged quaternized ammonium groups to achieve DNA complexation ability. In addition, a quaternary ammonium-functionalized nanogel was further provided with an aliphatic moiety using 1-bromododecane to add a membrane-interacting structure to ultimately facilitate intracellular release of the genetic material. The ability of the tertiary amine-, quaternized ammonium-, and aliphatic quaternized ammonium-functionalized p(NIPAM) nanogels (i.e., NGs, NGs-MI, and NGs-BDD, respectively) to mediate gene transfection was evaluated by fluorescence microscopy and flow cytometry. It is observed that NGs-BDD/pDNA complexes exhibit efficient gene loading, gene protection ability, and intracellular uptake similar to that of NGs-MI/pDNA complexes. However, only the NGs-BDD/pDNA complexes show a notable gene transfer efficiency, which can be ascribed to their ability to mediate DNA escape from endosomes. We conclude that NGs-BDD displays a cationic lipid-like behavior that facilitates endosomal escape by perturbing the endosomal/lysosomal membrane. These findings demonstrate that the presence of aliphatic chains within the nanogel is instrumental in accomplishing gene delivery, which provides a rationale for the further development of nanogel-based gene delivery systems. |
format |
article |
author |
Huaiying Zhang Damla Keskin Willy H. de Haan-Visser Guangyue Zu Patrick van Rijn Inge S. Zuhorn |
author_facet |
Huaiying Zhang Damla Keskin Willy H. de Haan-Visser Guangyue Zu Patrick van Rijn Inge S. Zuhorn |
author_sort |
Huaiying Zhang |
title |
Aliphatic Quaternary Ammonium Functionalized Nanogels for Gene Delivery |
title_short |
Aliphatic Quaternary Ammonium Functionalized Nanogels for Gene Delivery |
title_full |
Aliphatic Quaternary Ammonium Functionalized Nanogels for Gene Delivery |
title_fullStr |
Aliphatic Quaternary Ammonium Functionalized Nanogels for Gene Delivery |
title_full_unstemmed |
Aliphatic Quaternary Ammonium Functionalized Nanogels for Gene Delivery |
title_sort |
aliphatic quaternary ammonium functionalized nanogels for gene delivery |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doaj.org/article/d7ab6458ceae48b59d21b301d3a768ab |
work_keys_str_mv |
AT huaiyingzhang aliphaticquaternaryammoniumfunctionalizednanogelsforgenedelivery AT damlakeskin aliphaticquaternaryammoniumfunctionalizednanogelsforgenedelivery AT willyhdehaanvisser aliphaticquaternaryammoniumfunctionalizednanogelsforgenedelivery AT guangyuezu aliphaticquaternaryammoniumfunctionalizednanogelsforgenedelivery AT patrickvanrijn aliphaticquaternaryammoniumfunctionalizednanogelsforgenedelivery AT ingeszuhorn aliphaticquaternaryammoniumfunctionalizednanogelsforgenedelivery |
_version_ |
1718410802237538304 |