Efficient mRNA Delivery with mRNA Lipoplexes Prepared Using a Modified Ethanol Injection Method

Messenger RNA (mRNA)-based therapies are a novel class of therapeutics used in vaccination and protein replacement therapies for monogenic diseases. Previously, we developed a modified ethanol injection (MEI) method for small interfering RNA (siRNA) transfection, in which cationic liposome/siRNA com...

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Main Authors: Min Tang, Ayane Sagawa, Nodoka Inoue, Satomi Torii, Kana Tomita, Yoshiyuki Hattori
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Pharmaceutics
Subjects:
Online Access:https://www.mdpi.com/1999-4923/15/4/1141
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author Min Tang
Ayane Sagawa
Nodoka Inoue
Satomi Torii
Kana Tomita
Yoshiyuki Hattori
author_facet Min Tang
Ayane Sagawa
Nodoka Inoue
Satomi Torii
Kana Tomita
Yoshiyuki Hattori
author_sort Min Tang
collection DOAJ
description Messenger RNA (mRNA)-based therapies are a novel class of therapeutics used in vaccination and protein replacement therapies for monogenic diseases. Previously, we developed a modified ethanol injection (MEI) method for small interfering RNA (siRNA) transfection, in which cationic liposome/siRNA complexes (siRNA lipoplexes) were prepared by mixing a lipid-ethanol solution with a siRNA solution. In this study, we applied the MEI method to prepare mRNA lipoplexes and evaluated the in vitro and in vivo protein expression efficiencies. We selected six cationic lipids and three neutral helper lipids to generate 18 mRNA lipoplexes. These were composed of cationic lipids, neutral helper lipids, and polyethylene glycol-cholesteryl ether (PEG-Chol). Among them, mRNA lipoplexes containing <i>N</i>-hexadecyl-<i>N</i>,<i>N</i>-dimethylhexadecan-1-aminium bromide (DC-1-16) or 11-((1,3-bis(dodecanoyloxy)-2-((dodecanoyloxy)methyl) propan-2-yl) amino)-<i>N</i>,<i>N</i>,<i>N</i>-trimethyl-11-oxoundecan-1-aminium bromide (TC-1-12) with 1,2-dioleoyl-<i>sn</i>-glycero-3-phosphoethanolamine (DOPE) and PEG-Chol exhibited high protein expression in cells. Furthermore, mRNA lipoplexes composed of DC-1-16, DOPE, and PEG-Chol exhibited high protein expression in the lungs and spleen of mice after systemic injection and induced high antigen-specific IgG1 levels upon immunization. These results suggest that the MEI method can potentially increase the efficiency of mRNA transfection, both in vitro and in vivo.
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spelling doaj.art-e78e8b743dbf408ebc012c94e6f1915b2023-11-17T20:53:18ZengMDPI AGPharmaceutics1999-49232023-04-01154114110.3390/pharmaceutics15041141Efficient mRNA Delivery with mRNA Lipoplexes Prepared Using a Modified Ethanol Injection MethodMin Tang0Ayane Sagawa1Nodoka Inoue2Satomi Torii3Kana Tomita4Yoshiyuki Hattori5Department of Molecular Pharmaceutics, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, JapanDepartment of Molecular Pharmaceutics, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, JapanDepartment of Molecular Pharmaceutics, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, JapanDepartment of Molecular Pharmaceutics, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, JapanDepartment of Molecular Pharmaceutics, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, JapanDepartment of Molecular Pharmaceutics, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, JapanMessenger RNA (mRNA)-based therapies are a novel class of therapeutics used in vaccination and protein replacement therapies for monogenic diseases. Previously, we developed a modified ethanol injection (MEI) method for small interfering RNA (siRNA) transfection, in which cationic liposome/siRNA complexes (siRNA lipoplexes) were prepared by mixing a lipid-ethanol solution with a siRNA solution. In this study, we applied the MEI method to prepare mRNA lipoplexes and evaluated the in vitro and in vivo protein expression efficiencies. We selected six cationic lipids and three neutral helper lipids to generate 18 mRNA lipoplexes. These were composed of cationic lipids, neutral helper lipids, and polyethylene glycol-cholesteryl ether (PEG-Chol). Among them, mRNA lipoplexes containing <i>N</i>-hexadecyl-<i>N</i>,<i>N</i>-dimethylhexadecan-1-aminium bromide (DC-1-16) or 11-((1,3-bis(dodecanoyloxy)-2-((dodecanoyloxy)methyl) propan-2-yl) amino)-<i>N</i>,<i>N</i>,<i>N</i>-trimethyl-11-oxoundecan-1-aminium bromide (TC-1-12) with 1,2-dioleoyl-<i>sn</i>-glycero-3-phosphoethanolamine (DOPE) and PEG-Chol exhibited high protein expression in cells. Furthermore, mRNA lipoplexes composed of DC-1-16, DOPE, and PEG-Chol exhibited high protein expression in the lungs and spleen of mice after systemic injection and induced high antigen-specific IgG1 levels upon immunization. These results suggest that the MEI method can potentially increase the efficiency of mRNA transfection, both in vitro and in vivo.https://www.mdpi.com/1999-4923/15/4/1141mRNAlipoplexdeliverymRNA vaccine
spellingShingle Min Tang
Ayane Sagawa
Nodoka Inoue
Satomi Torii
Kana Tomita
Yoshiyuki Hattori
Efficient mRNA Delivery with mRNA Lipoplexes Prepared Using a Modified Ethanol Injection Method
Pharmaceutics
mRNA
lipoplex
delivery
mRNA vaccine
title Efficient mRNA Delivery with mRNA Lipoplexes Prepared Using a Modified Ethanol Injection Method
title_full Efficient mRNA Delivery with mRNA Lipoplexes Prepared Using a Modified Ethanol Injection Method
title_fullStr Efficient mRNA Delivery with mRNA Lipoplexes Prepared Using a Modified Ethanol Injection Method
title_full_unstemmed Efficient mRNA Delivery with mRNA Lipoplexes Prepared Using a Modified Ethanol Injection Method
title_short Efficient mRNA Delivery with mRNA Lipoplexes Prepared Using a Modified Ethanol Injection Method
title_sort efficient mrna delivery with mrna lipoplexes prepared using a modified ethanol injection method
topic mRNA
lipoplex
delivery
mRNA vaccine
url https://www.mdpi.com/1999-4923/15/4/1141
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