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Zhang A, Zhang X, Chen J, Shi X, Yu X, He Z, Sun J, Sun M, Liu Z. Approaches and applications in transdermal and transpulmonary gene drug delivery. Front Bioeng Biotechnol 2025; 12:1519557. [PMID: 39881959 PMCID: PMC11775749 DOI: 10.3389/fbioe.2024.1519557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2024] [Accepted: 12/20/2024] [Indexed: 01/31/2025] Open
Abstract
Gene therapy has emerged as a pivotal component in the treatment of diverse genetic and acquired human diseases. However, effective gene delivery remains a formidable challenge to overcome. The presence of degrading enzymes, acidic pH conditions, and the gastrointestinal mucus layer pose significant barriers for genetic therapy, necessitating exploration of alternative therapeutic options. In recent years, transdermal and transpulmonary gene delivery modalities offer promising avenues with multiple advantages, such as non-invasion, avoided liver first-pass effect and improved patient compliance. Considering the rapid development of gene therapeutics via transdermal and transpulmonary administration, here we aim to summarize the nearest advances in transdermal and transpulmonary gene drug delivery. In this review, we firstly elaborate on current delivery carrier in gene therapy. We, further, describe approaches and applications for enhancing transdermal and transpulmonary gene delivery encompassing microneedles, chemical enhancers, physical methods for transdermal administration as well as nebulized formulations, dry powder formulations, and pressurized metered dose formulations for efficient transpulmonary delivery. Last but not least, the opportunities and outlooks of gene therapy through both administrated routes are highlighted.
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Affiliation(s)
- Anni Zhang
- Department of Ultrasound, Shengjing Hospital, China Medical University, Shenyang, Liaoning, China
| | - Xuran Zhang
- Department of Orthopedics, Fuxin Center Hospital, Fuxin, Liaoning, China
| | - Jiahui Chen
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
| | - Xianbao Shi
- Department of Pharmacy, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Xijuan Yu
- Department of Ultrasound, Shengjing Hospital, China Medical University, Shenyang, Liaoning, China
| | - Zhonggui He
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
- Joint International Research Laboratory of Intelligent Drug Delivery Systems, Ministry of Education, Shenyang, Liaoning, China
| | - Jin Sun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
- Joint International Research Laboratory of Intelligent Drug Delivery Systems, Ministry of Education, Shenyang, Liaoning, China
| | - Mengchi Sun
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
- Joint International Research Laboratory of Intelligent Drug Delivery Systems, Ministry of Education, Shenyang, Liaoning, China
| | - Zhijun Liu
- Department of Ultrasound, Shengjing Hospital, China Medical University, Shenyang, Liaoning, China
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2
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Witten J, Raji I, Manan RS, Beyer E, Bartlett S, Tang Y, Ebadi M, Lei J, Nguyen D, Oladimeji F, Jiang AY, MacDonald E, Hu Y, Mughal H, Self A, Collins E, Yan Z, Engelhardt JF, Langer R, Anderson DG. Artificial intelligence-guided design of lipid nanoparticles for pulmonary gene therapy. Nat Biotechnol 2024:10.1038/s41587-024-02490-y. [PMID: 39658727 DOI: 10.1038/s41587-024-02490-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 10/29/2024] [Indexed: 12/12/2024]
Abstract
Ionizable lipids are a key component of lipid nanoparticles, the leading nonviral messenger RNA delivery technology. Here, to advance the identification of ionizable lipids beyond current methods, which rely on experimental screening and/or rational design, we introduce lipid optimization using neural networks, a deep-learning strategy for ionizable lipid design. We created a dataset of >9,000 lipid nanoparticle activity measurements and used it to train a directed message-passing neural network for prediction of nucleic acid delivery with diverse lipid structures. Lipid optimization using neural networks predicted RNA delivery in vitro and in vivo and extrapolated to structures divergent from the training set. We evaluated 1.6 million lipids in silico and identified two structures, FO-32 and FO-35, with local mRNA delivery to the mouse muscle and nasal mucosa. FO-32 matched the state of the art for nebulized mRNA delivery to the mouse lung, and both FO-32 and FO-35 efficiently delivered mRNA to ferret lungs. Overall, this work shows the utility of deep learning for improving nanoparticle delivery.
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Affiliation(s)
- Jacob Witten
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Idris Raji
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Anesthesiology, Boston Children's Hospital, Boston, MA, USA
| | - Rajith S Manan
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Emily Beyer
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Sandra Bartlett
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Yinghua Tang
- Department of Anatomy and Cell Biology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Mehrnoosh Ebadi
- Department of Anatomy and Cell Biology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Junying Lei
- Department of Anatomy and Cell Biology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Dien Nguyen
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Favour Oladimeji
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Allen Yujie Jiang
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Elise MacDonald
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Yizong Hu
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Haseeb Mughal
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Ava Self
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Evan Collins
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Ziying Yan
- Department of Anatomy and Cell Biology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - John F Engelhardt
- Department of Anatomy and Cell Biology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Robert Langer
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Harvard and MIT Division of Health Science and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Daniel G Anderson
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Harvard and MIT Division of Health Science and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA.
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3
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Jiang AY, Witten J, Raji IO, Eweje F, MacIsaac C, Meng S, Oladimeji FA, Hu Y, Manan RS, Langer R, Anderson DG. Combinatorial development of nebulized mRNA delivery formulations for the lungs. NATURE NANOTECHNOLOGY 2024; 19:364-375. [PMID: 37985700 PMCID: PMC10954414 DOI: 10.1038/s41565-023-01548-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 10/16/2023] [Indexed: 11/22/2023]
Abstract
Inhaled delivery of mRNA has the potential to treat a wide variety of diseases. However, nebulized mRNA lipid nanoparticles (LNPs) face several unique challenges including stability during nebulization and penetration through both cellular and extracellular barriers. Here we develop a combinatorial approach addressing these barriers. First, we observe that LNP formulations can be stabilized to resist nebulization-induced aggregation by altering the nebulization buffer to increase the LNP charge during nebulization, and by the addition of a branched polymeric excipient. Next, we synthesize a combinatorial library of ionizable, degradable lipids using reductive amination, and evaluate their delivery potential using fully differentiated air-liquid interface cultured primary lung epithelial cells. The final combination of ionizable lipid, charge-stabilized formulation and stability-enhancing excipient yields a significant improvement in lung mRNA delivery over current state-of-the-art LNPs and polymeric nanoparticles.
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Affiliation(s)
- Allen Y Jiang
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Jacob Witten
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Idris O Raji
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Anesthesiology, Boston Children's Hospital, Boston, MA, USA
| | - Feyisayo Eweje
- Harvard and MIT Division of Health Science and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA
- Harvard/MIT MD-PhD Program, Boston, MA, USA
| | - Corina MacIsaac
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Harvard and MIT Division of Health Science and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Sabrina Meng
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Favour A Oladimeji
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Yizong Hu
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Rajith S Manan
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Robert Langer
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Anesthesiology, Boston Children's Hospital, Boston, MA, USA
- Harvard and MIT Division of Health Science and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Daniel G Anderson
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Department of Anesthesiology, Boston Children's Hospital, Boston, MA, USA.
- Harvard and MIT Division of Health Science and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA.
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4
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Neary MT, Mulder LM, Kowalski PS, MacLoughlin R, Crean AM, Ryan KB. Nebulised delivery of RNA formulations to the lungs: From aerosol to cytosol. J Control Release 2024; 366:812-833. [PMID: 38101753 DOI: 10.1016/j.jconrel.2023.12.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 12/04/2023] [Accepted: 12/08/2023] [Indexed: 12/17/2023]
Abstract
In the past decade RNA-based therapies such as small interfering RNA (siRNA) and messenger RNA (mRNA) have emerged as new and ground-breaking therapeutic agents for the treatment and prevention of many conditions from viral infection to cancer. Most clinically approved RNA therapies are parenterally administered which impacts patient compliance and adds to healthcare costs. Pulmonary administration via inhalation is a non-invasive means to deliver RNA and offers an attractive alternative to injection. Nebulisation is a particularly appealing method due to the capacity to deliver large RNA doses during tidal breathing. In this review, we discuss the unique physiological barriers presented by the lung to efficient nebulised RNA delivery and approaches adopted to circumvent this problem. Additionally, the different types of nebulisers are evaluated from the perspective of their suitability for RNA delivery. Furthermore, we discuss recent preclinical studies involving nebulisation of RNA and analysis in in vitro and in vivo settings. Several studies have also demonstrated the importance of an effective delivery vector in RNA nebulisation therefore we assess the variety of lipid, polymeric and hybrid-based delivery systems utilised to date. We also consider the outlook for nebulised RNA medicinal products and the hurdles which must be overcome for successful clinical translation. In summary, nebulised RNA delivery has demonstrated promising potential for the treatment of several lung-related conditions such as asthma, COPD and cystic fibrosis, to which the mode of delivery is of crucial importance for clinical success.
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Affiliation(s)
- Michael T Neary
- SSPC, The SFI Research Centre for Pharmaceuticals, School of Pharmacy, University College Cork, Ireland; School of Pharmacy, University College Cork, Ireland
| | | | - Piotr S Kowalski
- School of Pharmacy, University College Cork, Ireland; APC Microbiome, University College Cork, Cork, Ireland
| | | | - Abina M Crean
- SSPC, The SFI Research Centre for Pharmaceuticals, School of Pharmacy, University College Cork, Ireland; School of Pharmacy, University College Cork, Ireland
| | - Katie B Ryan
- SSPC, The SFI Research Centre for Pharmaceuticals, School of Pharmacy, University College Cork, Ireland; School of Pharmacy, University College Cork, Ireland.
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5
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Suberi A, Grun MK, Mao T, Israelow B, Reschke M, Grundler J, Akhtar L, Lee T, Shin K, Piotrowski-Daspit AS, Homer RJ, Iwasaki A, Suh HW, Saltzman WM. Polymer nanoparticles deliver mRNA to the lung for mucosal vaccination. Sci Transl Med 2023; 15:eabq0603. [PMID: 37585505 PMCID: PMC11137749 DOI: 10.1126/scitranslmed.abq0603] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/26/2023] [Indexed: 08/18/2023]
Abstract
An inhalable platform for messenger RNA (mRNA) therapeutics would enable minimally invasive and lung-targeted delivery for a host of pulmonary diseases. Development of lung-targeted mRNA therapeutics has been limited by poor transfection efficiency and risk of vehicle-induced pathology. Here, we report an inhalable polymer-based vehicle for delivery of therapeutic mRNAs to the lung. We optimized biodegradable poly(amine-co-ester) (PACE) polyplexes for mRNA delivery using end-group modifications and polyethylene glycol. These polyplexes achieved high transfection of mRNA throughout the lung, particularly in epithelial and antigen-presenting cells. We applied this technology to develop a mucosal vaccine for severe acute respiratory syndrome coronavirus 2 and found that intranasal vaccination with spike protein-encoding mRNA polyplexes induced potent cellular and humoral adaptive immunity and protected susceptible mice from lethal viral challenge. Together, these results demonstrate the translational potential of PACE polyplexes for therapeutic delivery of mRNA to the lungs.
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Affiliation(s)
- Alexandra Suberi
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, USA
| | - Molly K Grun
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT 06511, USA
| | - Tianyang Mao
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06519, USA
| | - Benjamin Israelow
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06519, USA
- Department of Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, CT 06519, USA
| | - Melanie Reschke
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520, USA
| | - Julian Grundler
- Department of Chemistry, Yale University, New Haven, CT 06511, USA
| | - Laiba Akhtar
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT 06511, USA
| | - Teresa Lee
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, USA
| | - Kwangsoo Shin
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, USA
| | | | - Robert J Homer
- Department of Pathology, Yale University School of Medicine, CT 06510, USA
| | - Akiko Iwasaki
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06519, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Hee-Won Suh
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, USA
| | - W Mark Saltzman
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, USA
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT 06511, USA
- Department of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, CT 06510, USA
- Department of Dermatology, Yale School of Medicine, New Haven, CT 06510, USA
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6
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Chehelgerdi M, Chehelgerdi M. The use of RNA-based treatments in the field of cancer immunotherapy. Mol Cancer 2023; 22:106. [PMID: 37420174 PMCID: PMC10401791 DOI: 10.1186/s12943-023-01807-w] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 06/13/2023] [Indexed: 07/09/2023] Open
Abstract
Over the past several decades, mRNA vaccines have evolved from a theoretical concept to a clinical reality. These vaccines offer several advantages over traditional vaccine techniques, including their high potency, rapid development, low-cost manufacturing, and safe administration. However, until recently, concerns over the instability and inefficient distribution of mRNA in vivo have limited their utility. Fortunately, recent technological advancements have mostly resolved these concerns, resulting in the development of numerous mRNA vaccination platforms for infectious diseases and various types of cancer. These platforms have shown promising outcomes in both animal models and humans. This study highlights the potential of mRNA vaccines as a promising alternative approach to conventional vaccine techniques and cancer treatment. This review article aims to provide a thorough and detailed examination of mRNA vaccines, including their mechanisms of action and potential applications in cancer immunotherapy. Additionally, the article will analyze the current state of mRNA vaccine technology and highlight future directions for the development and implementation of this promising vaccine platform as a mainstream therapeutic option. The review will also discuss potential challenges and limitations of mRNA vaccines, such as their stability and in vivo distribution, and suggest ways to overcome these issues. By providing a comprehensive overview and critical analysis of mRNA vaccines, this review aims to contribute to the advancement of this innovative approach to cancer treatment.
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Affiliation(s)
- Mohammad Chehelgerdi
- Novin Genome (NG) Lab, Research and Development Center for Biotechnology, Shahrekord, Iran.
- Young Researchers and Elite Club, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.
| | - Matin Chehelgerdi
- Novin Genome (NG) Lab, Research and Development Center for Biotechnology, Shahrekord, Iran
- Young Researchers and Elite Club, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
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7
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Respiratory mucosal vaccination of peptide-poloxamine-DNA nanoparticles provides complete protection against lethal SARS-CoV-2 challenge. Biomaterials 2023; 292:121907. [PMID: 36436305 PMCID: PMC9673044 DOI: 10.1016/j.biomaterials.2022.121907] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 10/28/2022] [Accepted: 11/06/2022] [Indexed: 11/21/2022]
Abstract
The ongoing SARS-CoV-2 pandemic represents a brutal reminder of the continual threat of mucosal infectious diseases. Mucosal immunity may provide robust protection at the predominant sites of SARS-CoV-2 infection. However, it remains unclear whether respiratory mucosal administration of DNA vaccines could confer protective immune responses against SARS-CoV-2 challenge due to insurmountable barriers posed by the airway. Here, we applied self-assembled peptide-poloxamine nanoparticles with mucus-penetrating properties for pulmonary inoculation of a COVID-19 DNA vaccine (pSpike/PP-sNp). The pSpike/PP-sNp not only displays superior gene transfection and favorable biocompatibility in the mouse airway, but also promotes a tripartite immunity consisting of systemic, cellular, and mucosal immune responses that are characterized by mucosal IgA secretion, high levels of neutralizing antibodies, and resident memory phenotype T-cell responses in the lungs of mice. Most importantly, immunization with pSpike/PP-sNp completely eliminates SARS-CoV-2 infection in both upper and lower respiratory tracts and enables 100% survival rate of mice following lethal SARS-CoV-2 challenge. Our findings indicate PP-sNp is a promising platform in mediating DNA vaccines to elicit all-around mucosal immunity against SARS-CoV-2.
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8
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Suberi A, Grun MK, Mao T, Israelow B, Reschke M, Grundler J, Akhtar L, Lee T, Shin K, Piotrowski-Daspit AS, Homer RJ, Iwasaki A, Suh HW, Saltzman WM. Inhalable polymer nanoparticles for versatile mRNA delivery and mucosal vaccination. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2022:2022.03.22.485401. [PMID: 35350207 PMCID: PMC8963702 DOI: 10.1101/2022.03.22.485401] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
An inhalable platform for mRNA therapeutics would enable minimally invasive and lung targeted delivery for a host of pulmonary diseases. Development of lung targeted mRNA therapeutics has been limited by poor transfection efficiency and risk of vehicle-induced pathology. Here we report an inhalable polymer-based vehicle for delivery of therapeutic mRNAs to the lung. We optimized biodegradable poly(amine-co-ester) polyplexes for mRNA delivery using end group modifications and polyethylene glycol. Our polyplexes achieved high transfection of mRNA throughout the lung, particularly in epithelial and antigen-presenting cells. We applied this technology to develop a mucosal vaccine for SARS-CoV-2. Intranasal vaccination with spike protein mRNA polyplexes induced potent cellular and humoral adaptive immunity and protected K18-hACE2 mice from lethal viral challenge. One-sentence summary Inhaled polymer nanoparticles (NPs) achieve high mRNA expression in the lung and induce protective immunity against SARS-CoV-2.
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9
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Tang J, Cai L, Xu C, Sun S, Liu Y, Rosenecker J, Guan S. Nanotechnologies in Delivery of DNA and mRNA Vaccines to the Nasal and Pulmonary Mucosa. NANOMATERIALS 2022; 12:nano12020226. [PMID: 35055244 PMCID: PMC8777913 DOI: 10.3390/nano12020226] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 01/03/2022] [Accepted: 01/05/2022] [Indexed: 02/07/2023]
Abstract
Recent advancements in the field of in vitro transcribed mRNA (IVT-mRNA) vaccination have attracted considerable attention to such vaccination as a cutting-edge technique against infectious diseases including COVID-19 caused by SARS-CoV-2. While numerous pathogens infect the host through the respiratory mucosa, conventional parenterally administered vaccines are unable to induce protective immunity at mucosal surfaces. Mucosal immunization enables the induction of both mucosal and systemic immunity, efficiently removing pathogens from the mucosa before an infection occurs. Although respiratory mucosal vaccination is highly appealing, successful nasal or pulmonary delivery of nucleic acid-based vaccines is challenging because of several physical and biological barriers at the airway mucosal site, such as a variety of protective enzymes and mucociliary clearance, which remove exogenously inhaled substances. Hence, advanced nanotechnologies enabling delivery of DNA and IVT-mRNA to the nasal and pulmonary mucosa are urgently needed. Ideal nanocarriers for nucleic acid vaccines should be able to efficiently load and protect genetic payloads, overcome physical and biological barriers at the airway mucosal site, facilitate transfection in targeted epithelial or antigen-presenting cells, and incorporate adjuvants. In this review, we discuss recent developments in nucleic acid delivery systems that target airway mucosa for vaccination purposes.
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Affiliation(s)
- Jie Tang
- Department of Pediatrics, Ludwig-Maximilians University of Munich, 80337 Munich, Germany;
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane 4072, Australia;
| | - Larry Cai
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane 4072, Australia;
| | - Chuanfei Xu
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, Third Military Medical University, Chongqing 400038, China; (C.X.); (S.S.); (Y.L.)
| | - Si Sun
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, Third Military Medical University, Chongqing 400038, China; (C.X.); (S.S.); (Y.L.)
| | - Yuheng Liu
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, Third Military Medical University, Chongqing 400038, China; (C.X.); (S.S.); (Y.L.)
| | - Joseph Rosenecker
- Department of Pediatrics, Ludwig-Maximilians University of Munich, 80337 Munich, Germany;
- Correspondence: (J.R.); (S.G.); Tel.: +49-89-440057713 (J.R.); +86-23-68771645 (S.G.)
| | - Shan Guan
- Department of Pediatrics, Ludwig-Maximilians University of Munich, 80337 Munich, Germany;
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, Third Military Medical University, Chongqing 400038, China; (C.X.); (S.S.); (Y.L.)
- Correspondence: (J.R.); (S.G.); Tel.: +49-89-440057713 (J.R.); +86-23-68771645 (S.G.)
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