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Grodzicka M, Michlewska S, Buczkowski A, Ortega P, de la Mata FJ, Bryszewska M, Ionov M. Effect of polyphenolic dendrimers on biological and artificial lipid membranes. Chem Phys Lipids 2024; 265:105444. [PMID: 39265880 DOI: 10.1016/j.chemphyslip.2024.105444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 09/03/2024] [Accepted: 09/09/2024] [Indexed: 09/14/2024]
Abstract
The use of dendrimers as nanovectors for nucleic acids or drugs requires the understanding of their interaction with biological membranes. This study investigates the impact of 1st generation polyphenolic carbosilane dendrimers on biological and model lipid membranes using several biophysical methods. While the increase in the z-average size of DMPC/DPPG liposomes correlated with the number of caffeic acid residues included in the dendrimer structure, dendrimers that contained polyethylene glycol chains generated lower zeta potential when interacting with a liposomal membrane. The increase in the fluorescence anisotropy of DPH and TMA-DPH probes incorporated into erythrocyte membranes predicted the ability of dendrimers to affect membrane fluidity in the hydrophobic interior and hydrophilic/polar region of a lipid bilayer. The presence of caffeic acid and polyethylene glycol chains in the dendrimer structure affected the thermodynamical properties of the membrane lipid matrix.
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Affiliation(s)
- Marika Grodzicka
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biophysics, Pomorska 141/143, Lodz 90-236, Poland; The Bio-Med-Chem Doctoral School of the University of Lodz and Lodz Institutes of the Polish Academy of Sciences, Department of General Biophysics, Pomorska 141/143, Lodz 90-236, Poland; University of Lodz, Faculty of Biology and Environmental Protection, Laboratory of Microscopic Imaging and Specialized Biological Techniques, Banacha 12/16, Lodz 90-237, Poland.
| | - Sylwia Michlewska
- University of Lodz, Faculty of Biology and Environmental Protection, Laboratory of Microscopic Imaging and Specialized Biological Techniques, Banacha 12/16, Lodz 90-237, Poland.
| | - Adam Buczkowski
- University of Lodz, Faculty of Chemistry, Department of Physical Chemistry, Division of Biophysical Chemistry, Pomorska 165, Lodz 90-236, Poland
| | - Paula Ortega
- Universidad de Alcalá. Department of Organic and Inorganic Chemistry, and Research Institute in Chemistry "Andrés M. del Río" (IQAR), Spain and Instituto Ramon y Cajal de Investigacion Sanitaria, IRYCIS, Colmenar Viejo Road, Km 9, 100, Madrid 28034, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Francisco Javier de la Mata
- Universidad de Alcalá. Department of Organic and Inorganic Chemistry, and Research Institute in Chemistry "Andrés M. del Río" (IQAR), Spain and Instituto Ramon y Cajal de Investigacion Sanitaria, IRYCIS, Colmenar Viejo Road, Km 9, 100, Madrid 28034, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Maria Bryszewska
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biophysics, Pomorska 141/143, Lodz 90-236, Poland
| | - Maksim Ionov
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biophysics, Pomorska 141/143, Lodz 90-236, Poland; Mazovian Academy in Plock, Collegium Medicum, Faculty of Medicine, Pl. Dabrowskiego 2, Plock 09-402, Poland
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Li J, Tian Y, Qin Q, Ding Z, Zhao X, Tan W. Near-Infrared Light-Triggered NO Nanogenerator for Gas-Enhanced Photodynamic Therapy and Low-Temperature Photothermal Therapy to Eliminate Biofilms. Int J Nanomedicine 2024; 19:5763-5780. [PMID: 38882537 PMCID: PMC11180465 DOI: 10.2147/ijn.s454762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 05/25/2024] [Indexed: 06/18/2024] Open
Abstract
Purpose Owing to its noninvasive nature, broad-spectrum effectiveness, minimal bacterial resistance, and high efficiency, phototherapy has significant potential for antibiotic-free antibacterial interventions and combating antibacterial biofilms. However, finding effective strategies to mitigate the detrimental effects of excessive temperature and elevated concentrations of reactive oxygen species (ROS) remains a pressing issue that requires immediate attention. Methods In this study, we designed a pH-responsive cationic polymer sodium nitroside dihydrate/branched polyethylenimine-indocyanine green@polyethylene glycol (SNP/PEI-ICG@PEG) nanoplatform using the electrostatic adsorption method and Schiff's base reaction. Relevant testing techniques were applied to characterize and analyze SNP/PEI-ICG@PEG, proving the successful synthesis of the nanomaterials. In vivo and in vitro experiments were performed to evaluate the antimicrobial properties of SNP/PEI-ICG@PEG. Results The morphology and particle size of SNP/PEI-ICG@PEG were observed via TEM. The zeta potential and UV-visible (UV-vis) results indicated the synthesis of the nanomaterials. The negligible cytotoxicity of up to 1 mg/mL of SNP/PEI-ICG@PEG in the presence or absence of light demonstrated its biosafety. Systematic in vivo and in vitro antimicrobial assays confirmed that SNP/PEI-ICG@PEG had good water solubility and biosafety and could be activated by near-infrared (NIR) light and synergistically treated using four therapeutic modes, photodynamic therapy (PDT), gaseous therapy (GT), mild photothermal therapy (PTT, 46 °C), and cation. Ultimately, the development of Gram-positive (G+) Staphylococcus aureus (S. aureus) and Gram-negative (G-) Escherichia coli (E. coli) were both completely killed in the free state, and the biofilm that had formed was eliminated. Conclusion SNP/PEI-ICG@PEG demonstrated remarkable efficacy in achieving controlled multimodal synergistic antibacterial activity and biofilm infection treatment. The nanoplatform thus holds promise for future clinical applications.
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Affiliation(s)
- Junjuan Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Weifang Medical University/Weifang People's Hospital, Weifang, 261000, People's Republic of China
| | - Yue Tian
- School of Clinical Medicine, Weifang Medical University, Weifang, 261053, People's Republic of China
| | - Qi Qin
- School of Clinical Medicine, Weifang Medical University, Weifang, 261053, People's Republic of China
| | - Zhaolei Ding
- Department of Respiratory Medicine, The First Affiliated Hospital of Weifang Medical University/Weifang People's Hospital, Weifang, 261000, People's Republic of China
| | - Xue Zhao
- Department of Laboratory Medicine, The First Affiliated Hospital of Weifang Medical University/Weifang People's Hospital, Weifang, 261000, People's Republic of China
| | - Wei Tan
- Department of Respiratory Medicine, The First Affiliated Hospital of Weifang Medical University/Weifang People's Hospital, Weifang, 261000, People's Republic of China
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Noske S, Karimov M, Krüger M, Lilli B, Ewe A, Aigner A. Spray-drying of PEI-/PPI-based nanoparticles for DNA or siRNA delivery. Eur J Pharm Biopharm 2024; 199:114297. [PMID: 38641228 DOI: 10.1016/j.ejpb.2024.114297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 04/10/2024] [Accepted: 04/16/2024] [Indexed: 04/21/2024]
Abstract
Spray-drying of nucleic acid-based drugs designed for gene therapy or gene knockdown is associated with many advantages including storage stability and handling as well as the possibility of pulmonary application. The encapsulation of nucleic acids in nanoparticles prior to spray-drying is one strategy for obtaining efficient formulations. This, however, strongly relies on the definition of optimal nanoparticles, excipients and spray-drying conditions. Among polymeric nanoparticles, polyethylenimine (PEI)-based complexes with or without chemical modifications have been described previously as very efficient for gene or oligonucleotide delivery. The tyrosine-modification of linear or branched low molecular weight PEIs, or of polypropylenimine (PPI) dendrimers, has led to high complex stability, improved cell uptake and transfection efficacy as well as high biocompatibility. In this study, we identify optimal spray-drying conditions for PEI-based nanoparticles containing large plasmid DNA or small siRNAs, and further explore the spray-drying of nanoparticles containing chemically modified polymers. Poly(vinyl alcohol) (PVA), but not trehalose or lactose, is particularly well-suited as excipient, retaining or even enhancing transfection efficacies compared to fresh complexes. A big mesh size is critically important as well, while the variation of the spray-drying temperature plays a minor role. Upon spray-drying, microparticles in a ∼ 3.3 - 8.5 µm size range (laser granulometry) are obtained, dependent on the polymers. Upon their release from the spray-dried material, the nanoparticles show increased sizes and markedly altered zeta potentials as compared to their fresh counterparts. This may contribute to their high efficacy that is seen also after prolonged storage of the spray-dried material. We conclude that these spray-dried systems offer a great potential for the preparation of nucleic acid drug storage forms with facile reconstitution, as well as for their direct pulmonary application as dry powder.
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Affiliation(s)
- Sandra Noske
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Clinical Pharmacology, Leipzig University, Faculty of Medicine, Härtelstraße 16-18, 04107 Leipzig, Germany
| | - Michael Karimov
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Clinical Pharmacology, Leipzig University, Faculty of Medicine, Härtelstraße 16-18, 04107 Leipzig, Germany
| | - Martin Krüger
- Institute of Anatomy, Leipzig University, Liebigstraße 13, 04103 Leipzig, Germany
| | - Bettina Lilli
- Institute of Chemical Technology, Leipzig University, Linnéstraße 3, 04103 Leipzig, Germany
| | - Alexander Ewe
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Clinical Pharmacology, Leipzig University, Faculty of Medicine, Härtelstraße 16-18, 04107 Leipzig, Germany
| | - Achim Aigner
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Clinical Pharmacology, Leipzig University, Faculty of Medicine, Härtelstraße 16-18, 04107 Leipzig, Germany.
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Kieu Doan TN, Croyle MA. Physical characteristics and stability profile of recombinant plasmid DNA within a film matrix. Eur J Pharm Biopharm 2023; 190:270-283. [PMID: 37567395 DOI: 10.1016/j.ejpb.2023.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/14/2023] [Accepted: 08/08/2023] [Indexed: 08/13/2023]
Abstract
Plasmids are essential source material for production of biological drugs, vaccines and vectors for gene therapy. They are commonly formulated as frozen solutions. Considering the cost associated with maintenance of cold chain conditions during storage and transport, there is a significant need for alternative methods for stabilization of plasmids at ambient temperature. The objective of these studies was to identify a film-based formulation that preserved transfection efficiency of plasmids at 25 °C. A model plasmid, pAAVlacZ, was used for these studies. Transfection efficiency and agarose gel electrophoresis were utilized to assess bioactivity and changes in physical conformation of plasmid during storage. An amino acid, capable of sustaining a positive charge while supporting an alkaline environment within the film matrix, preserved transfection efficiency for 9 months at 25 °C. Addition of sugar and a plasticizer to the formulation preserved the plasmid in an amorphous state and improved handling properties of the film. The manner in which excipients were incorporated into bulk formulations and environmental humidity in which films were stored significantly impacted transfection efficiency of plasmid in the rehydrated solution. Taken together, these results suggest that plasmids can be stored for extended periods of time without refrigeration within a film matrix.
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Affiliation(s)
- Trang Nguyen Kieu Doan
- The University of Texas at Austin College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, Austin, TX 78712, United States
| | - Maria A Croyle
- The University of Texas at Austin College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, Austin, TX 78712, United States; John R. LaMontagne Center for Infectious Disease, The University of Texas at Austin, Austin, TX 78712, United States.
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Yang W, Wang N, Yang J, Liu C, Ma S, Wang X, Li W, Shen M, Wu Q, Gong C. A multifunctional 'golden cicada' nanoplatform breaks the thermoresistance barrier to launch cascade augmented synergistic effects of photothermal/gene therapy. J Nanobiotechnology 2023; 21:228. [PMID: 37461088 DOI: 10.1186/s12951-023-01983-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 07/03/2023] [Indexed: 07/20/2023] Open
Abstract
BACKGROUND Photothermal therapy (PTT) is taken as a promising strategy for cancer therapy, however, its applicability is hampered by cellular thermoresistance of heat shock response and insufficient accumulation of photothermal transduction agents in the tumor region. In consideration of those limitations, a multifunctional "Golden Cicada" nanoplatform (MGCN) with efficient gene delivery ability and excellent photothermal effects is constructed, overcoming the thermoresistance of tumor cells and improving the accumulation of indocyanine green (ICG). RESULTS Down-regulation of heat shock protein 70 (HSP70) makes tumor cells more susceptible to PTT, and a better therapeutic effect is achieved through such cascade augmented synergistic effects. MGCN has attractive features with prolonged circulation in blood, dual-targeting capability of CD44 and sialic acid (SA) receptors, and agile responsiveness of enzyme achieving size and charge double-variable transformation. It proves that, on the one hand, MGCN performs excellent capability for HSP70-shRNA delivery, resulting in breaking the cellular thermoresistance mechanism, on the other hand, ICG enriches in tumor site specifically and possesses a great thermal property to promoted PTT. CONCLUSIONS In short, MGCN breaks the protective mechanism of cellular heat stress response by downregulating the expression of HSP70 proteins and significantly augments synergistic effects of photothermal/gene therapy via cascade augmented synergistic effects.
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Affiliation(s)
- Wen Yang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ning Wang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jin Yang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Chao Liu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Shuang Ma
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiye Wang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Wenzhen Li
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Meiling Shen
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Qinjie Wu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Changyang Gong
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Carneiro SP, Greco A, Chiesa E, Genta I, Merkel OM. Shaping the future from the small scale: dry powder inhalation of CRISPR-Cas9 lipid nanoparticles for the treatment of lung diseases. Expert Opin Drug Deliv 2023; 20:471-487. [PMID: 36896650 PMCID: PMC7614984 DOI: 10.1080/17425247.2023.2185220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 02/23/2023] [Indexed: 03/11/2023]
Abstract
INTRODUCTION Most lung diseases are serious conditions resulting from genetic and environmental causes associated with high mortality and severe symptoms. Currently, treatments available have a palliative effect and many targets are still considered undruggable. Gene therapy stands as an attractive approach to offering innovative therapeutic solutions. CRISPRCas9 has established a remarkable potential for genome editing with high selectivity to targeted mutations. To ensure high efficacy with minimum systemic exposure, the delivery and administration route are key components that must be investigated. AREAS COVERED This review is focused on the delivery of CRISPRCas9 to the lungs, taking advantage of lipid nanoparticles (LNPs), the most clinically advanced nucleic acid carriers. We also aim to highlight the benefits of pulmonary administration as a local delivery route and the use of spray drying to prepare stable nucleic-acid-based dry powder formulations that can overcome multiple lung barriers. EXPERT OPINION Exploring the pulmonary administration to deliver CRISPRCas9 loaded in LNPs as a dry powder increases the chances to achieve high efficacy and reduced adverse effects. CRISPRCas9 loaded in LNP-embedded microparticles has not yet been reported in the literature but has the potential to reach and accumulate in target cells in the lung, thus, enhancing overall efficacy and safety.
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Affiliation(s)
- Simone P. Carneiro
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians-University of Munich, Butenandtstraße 5, 81377 Munich, Germany
| | - Antonietta Greco
- University School for Advanced Studies (IUSS), Piazza della Vittoria 15, 27100 Pavia, Italy
| | - Enrica Chiesa
- Department of Drug Sciences, University of Pavia, V.le Taramelli 12, Pavia, Italy
| | - Ida Genta
- Department of Drug Sciences, University of Pavia, V.le Taramelli 12, Pavia, Italy
| | - Olivia M. Merkel
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians-University of Munich, Butenandtstraße 5, 81377 Munich, Germany
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Foster T, Lewkowicz M, Quintas C, Ionescu CM, Jones M, Wagle SR, Kovacevic B, Wong EYM, Mooranian A, Al-Salami H. Novel Nanoencapsulation Technology and its Potential Role in Bile Acid-Based Targeted Gene Delivery to the Inner Ear. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2204986. [PMID: 36538754 DOI: 10.1002/smll.202204986] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 10/05/2022] [Indexed: 06/17/2023]
Abstract
Hearing loss impacts a large proportion of the global population. Damage to the inner ear, in particular the sensitive hair cells, can impact individuals for the rest of their lives. There are very limited options for interventions after damage to these cells has occurred. Targeted gene delivery may provide an effective means to trigger appropriate differentiation of progenitor cells for effective replacement of these sensitive hair cells. There are several hurdles that need to be overcome to effectively deliver these genes. Nanoencapsulation technology has previously been used for the delivery of pharmaceuticals, proteins and nucleic acids, and may provide an effective means of delivering genes to trigger appropriate differentiation. This review investigates the background of hearing loss, current advancements and pitfalls of gene delivery, and how nanoencapsulation may be useful.
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Affiliation(s)
- Thomas Foster
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Michael Lewkowicz
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Christina Quintas
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
| | - Corina Mihaela Ionescu
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Melissa Jones
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Susbin Raj Wagle
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Bozica Kovacevic
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Elaine Y M Wong
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Armin Mooranian
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
- School of Pharmacy, University of Otago, Dunedin, Otago, 9016, New Zealand
| | - Hani Al-Salami
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
- Medical School, University of Western Australia, Perth, Western Australia, Australia
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Winkeljann B, Keul DC, Merkel OM. Engineering poly- and micelleplexes for nucleic acid delivery - A reflection on their endosomal escape. J Control Release 2023; 353:518-534. [PMID: 36496051 PMCID: PMC9900387 DOI: 10.1016/j.jconrel.2022.12.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/02/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022]
Abstract
For the longest time, the field of nucleic acid delivery has remained skeptical whether or not polycationic drug carrier systems would ever make it into clinical practice. Yet, with the disclosure of patents on polyethyleneimine-based RNA carriers through leading companies in the field of nucleic acid therapeutics such as BioNTech SE and the progress in clinical studies beyond phase I trials, this aloofness seems to regress. As one of the most striking characteristics of polymer-based vectors, the extraordinary tunability can be both a blessing and a curse. Yet, knowing about the adjustment screws and how they impact the performance of the drug carrier provides the formulation scientist committed to its development with a head start. Here, we equip the reader with a toolbox - a toolbox that should advise and support the developer to conceptualize a cutting-edge poly- or micelleplex system for the delivery of therapeutic nucleic acids; to be specific, to engineer the vector towards maximum endosomal escape performance at minimum toxicity. Therefore, after briefly sketching the boundary conditions of polymeric vector design, we will dive into the topic of endosomal trafficking. We will not only discuss the most recent knowledge of the endo-lysosomal compartment but further depict different hypotheses and mechanisms that facilitate the endosomal escape of polyplex systems. Finally, we will combine the different facets introduced in the previous chapters with the fundamental building blocks of polymer vector design and evaluate the advantages and drawbacks. Throughout the article, a particular focus will be placed on cellular peculiarities, not only as an additional barrier, but also to give inspiration to how such cell-specific traits might be capitalized on.
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Affiliation(s)
- Benjamin Winkeljann
- Department of Pharmacy, Ludwig-Maximilians-University Munich, Butenandtstrasse 5-13, Haus B, 81377 Munich, Germany,Center for NanoScience (CeNS), Ludwig-Maximilians-University Munich, 80799 Munich, Germany
| | - David C. Keul
- Department of Pharmacy, Ludwig-Maximilians-University Munich, Butenandtstrasse 5-13, Haus B, 81377 Munich, Germany
| | - Olivia M. Merkel
- Department of Pharmacy, Ludwig-Maximilians-University Munich, Butenandtstrasse 5-13, Haus B, 81377 Munich, Germany,Center for NanoScience (CeNS), Ludwig-Maximilians-University Munich, 80799 Munich, Germany,Corresponding author at: Department of Pharmacy, Ludwig-Maximilians-Universität Munich, Butenandtstrasse 5-13, Haus B, 81377 München, Germany
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9
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Wang H, Qin L, Zhang X, Guan J, Mao S. Mechanisms and challenges of nanocarriers as non-viral vectors of therapeutic genes for enhanced pulmonary delivery. J Control Release 2022; 352:970-993. [PMID: 36372386 PMCID: PMC9671523 DOI: 10.1016/j.jconrel.2022.10.061] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/31/2022] [Accepted: 10/31/2022] [Indexed: 11/17/2022]
Abstract
With the rapid development of biopharmaceuticals and the outbreak of COVID-19, the world has ushered in a frenzy to develop gene therapy. Therefore, therapeutic genes have received enormous attention. However, due to the extreme instability and low intracellular gene expression of naked genes, specific vectors are required. Viral vectors are widely used attributed to their high transfection efficiency. However, due to the safety concerns of viral vectors, nanotechnology-based non-viral vectors have attracted extensive investigation. Still, issues of low transfection efficiency and poor tissue targeting of non-viral vectors need to be addressed. Especially, pulmonary gene delivery has obvious advantages for the treatment of inherited lung diseases, lung cancer, and viral pneumonia, which can not only enhance lung targeting and but also reduce enzymatic degradation. For systemic diseases therapy, pulmonary gene delivery can enhance vaccine efficacy via inducing not only cellular, humoral immunity but also mucosal immunity. This review provides a comprehensive overview of nanocarriers as non-viral vectors of therapeutic genes for enhanced pulmonary delivery. First of all, the characteristics and therapeutic mechanism of DNA, mRNA, and siRNA are provided. Thereafter, the advantages and challenges of pulmonary gene delivery in exerting local and systemic effects are discussed. Then, the inhalation dosage forms for nanoparticle-based drug delivery systems are introduced. Moreover, a series of materials used as nanocarriers for pulmonary gene delivery are presented, and the endosomal escape mechanisms of nanocarriers based on different materials are explored. The application of various non-viral vectors for pulmonary gene delivery are summarized in detail, with the perspectives of nano-vectors for pulmonary gene delivery.
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Affiliation(s)
| | | | - Xin Zhang
- Corresponding authors at: School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, 110016 Shenyang, China
| | | | - Shirui Mao
- Corresponding authors at: School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, 110016 Shenyang, China
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10
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Keil TWM, Deiringer N, Friess W, Merkel OM. Evaluation of adsorption of DNA/PEI polyplexes to tubing materials. Eur J Pharm Biopharm 2022; 179:58-64. [PMID: 36041597 PMCID: PMC7613709 DOI: 10.1016/j.ejpb.2022.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 08/22/2022] [Accepted: 08/24/2022] [Indexed: 11/24/2022]
Abstract
Nucleic acid drugs hold great promise for potential treatment of a variety of diseases. But efficient delivery is still the major challenge impeding translation. Nanoformulations based on polymers and lipids require preparation processes such as microfluidic mixing, spray drying or final filling, where pumping is a crucial step. Here, we studied the effect of pumping on the component and overall loss of a binary polyplex formulation made of DNA and polyethyleneimine (PEI). We varied tubing length and material with a focus on subsequent spray drying. Interestingly, product loss increased with the length of silicon tubing. Losses of DNA were prevented by using Pumpsil. The following spray drying process did not affect DNA content but caused PEI loss. Characterization of the different tubing materials revealed similar hydrophobicity of all tubing materials and showed neutral Pumpsil® surface charge, negative Santoprene™ surface charge, and a positive Silicon surface charge. Hence, adsorption of DNA onto tubing material was concluded to be the root cause for DNA loss after pumping and is based upon an interplay of ionic and hydrophobic interactions between polyplexes and tubing material. Overall, selecting the appropriate tubing material for processing nucleic acid nanoparticles is key to achieving satisfactory product quality.
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Affiliation(s)
- Tobias W M Keil
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians Universität München, 81377 Munich, Germany
| | - Natalie Deiringer
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians Universität München, 81377 Munich, Germany
| | - Wolfgang Friess
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians Universität München, 81377 Munich, Germany
| | - Olivia M Merkel
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians Universität München, 81377 Munich, Germany.
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Mehta N, Pai R. Amalgamation of Nanoparticles within Drug Carriers: A Synergistic Approach or a Futile Attempt? Pharm Nanotechnol 2022; 10:PNT-EPUB-126127. [PMID: 36056844 DOI: 10.2174/2211738510666220902150449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 04/25/2022] [Accepted: 05/03/2022] [Indexed: 11/22/2022]
Abstract
In recent years, nanotechnology has gained much attention from scientists and significant advances in therapeutic potential. Nano-delivery systems have emerged as an effective way in order to improve the therapeutic properties of drugs including solubility, stability, prolongation of half-life as well as promoting the accumulation of drug at the target site. The nanoparticles have also been incorporated into various conventional drug delivery systems. This review study aims to introduce the amalgamation of nanoparticles into drug carriers. To overcome the limitations of single nanoparticles such as toxicity, high instability, rapid drug release as well as limited drug loading capacity, a multi-component system is developed. Liposomes, microparticles, nanofibers, dendrimers etc., are promising drug carriers, having some limitations that can be minimized, and the compilation of nanoparticles synergizes the properties. The amalgamated nanocarriers are used for the diagnostic purpose as well as treatment of various chronic diseases. It also increases the solubility of hydrophobic drugs. However, each system has its advantages and disadvantages based on its physicochemical properties, efficacy, and other parameters. This review details the past and present state of development for the fusion of nanoparticles within drug carriers and from which we identify future research works needed for the same.
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Affiliation(s)
- Nikhil Mehta
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM\\\'s NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai- 400056, India
| | - Rohan Pai
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM\\\'s NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai- 400056, India
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12
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Topography-Mediated Enhancement of Nonviral Gene Delivery in Stem Cells. Pharmaceutics 2022; 14:pharmaceutics14051096. [PMID: 35631682 PMCID: PMC9142897 DOI: 10.3390/pharmaceutics14051096] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/09/2022] [Accepted: 05/18/2022] [Indexed: 02/07/2023] Open
Abstract
Gene delivery holds great promise for bioengineering, biomedical applications, biosensors, diagnoses, and gene therapy. In particular, the influence of topography on gene delivery is considered to be an attractive approach due to low toxicity and localized delivery properties. Even though many gene vectors and transfection systems have been developed to enhance transfection potential and combining it with other forms of stimulations could even further enhance it. Topography is an interesting surface property that has been shown to stimulate differentiation, migration, cell morphology, and cell mechanics. Therefore, it is envisioned that topography might also be able to stimulate transfection. In this study, we tested the hypothesis “topography is able to regulate transfection efficiency”, for which we used nano- and microwave-like topographical substrates with wavelengths ranging from 500 nm to 25 µm and assessed the transfectability of human bone marrow-derived mesenchymal stem cells (hBM-MSCs) and myoblasts. For transfection, Lipofectamine 2000 and a gene encoding plasmid for red-fluorescent protein (m-Cherry) were used and topography-induced cell morphology and transfection efficiency was analyzed. As a result, topography directs cell spreading, elongation, and proliferation as well as the transfection efficiency, which were investigated but were found not to be correlated and dependent on the cell type. A 55% percent improvement of transfection efficiency was identified for hBM-MSCs grown on 2 µm wrinkles (24.3%) as compared to hBM-MSCs cultured on flat controls (15.7%). For myoblast cells, the highest gene-expression efficiency (46.1%) was observed on the 10 µm topography, which enhanced the transfection efficiency by 64% as compared to the flat control (28.1%). From a qualitative assessment, it was observed that the uptake capacity of cationic complexes of TAMRA-labeled oligodeoxynucleotides (ODNs) was not topography-dependent but that the intracellular release was faster, as indicated by the positively stained nuclei on 2 μm for hBM-MSCs and 10 μm for myoblasts. The presented results indicate that topography enhances the gene-delivery capacity and that the responses are dependent on cell type. This study demonstrates the important role of topography on cell stimulation for gene delivery as well as understanding the uptake capacity of lipoplexes and may be useful for developing advanced nonviral gene delivery strategies.
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13
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Rabiee N, Bagherzadeh M, Ghadiri AM, Kiani M, Ahmadi S, Jajarmi V, Fatahi Y, Aldhaher A, Tahriri M, Webster TJ, Mostafavi E. Calcium-based nanomaterials and their interrelation with chitosan: optimization for pCRISPR delivery. JOURNAL OF NANOSTRUCTURE IN CHEMISTRY 2022; 12:919-932. [PMID: 34580605 PMCID: PMC8457547 DOI: 10.1007/s40097-021-00446-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 09/03/2021] [Indexed: 05/17/2023]
Abstract
UNLABELLED There have been numerous advancements in the early diagnosis, detection, and treatment of genetic diseases. In this regard, CRISPR technology is promising to treat some types of genetic issues. In this study, the relationship between calcium (due to its considerable physicochemical properties) and chitosan (as a natural linear polysaccharide) was investigated and optimized for pCRISPR delivery. To achieve this, different forms of calcium, such as calcium nanoparticles (CaNPs), calcium phosphate (CaP), a binary blend of calcium and chitosan including CaNPs/Chitosan and CaP/Chitosan, as well as their tertiary blend including CaNPs-CaP/Chitosan, were prepared via both routine and green procedures using Salvia hispanica to reduce toxicity and increase nanoparticle stability (with a yield of 85%). Such materials were also applied to the human embryonic kidney (HEK-293) cell line for pCRISPR delivery. The results were optimized using different characterization techniques demonstrating acceptable binding with DNA (for both CaNPs/Chitosan and CaNPs-CaP/Chitosan) significantly enhancing green fluorescent protein (EGFP) (about 25% for CaP/Chitosan and more than 14% for CaNPs-CaP/Chitosan). SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s40097-021-00446-1.
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Affiliation(s)
- Navid Rabiee
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | | | | | - Mahsa Kiani
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | - Sepideh Ahmadi
- Student Research Committee, Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahid Jajarmi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yousef Fatahi
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, 14155-6451 Iran
- Faculty of Pharmacy, Nanotechnology Research Center, Tehran University of Medical Sciences, Tehran, 14155-6451 Iran
- Universal Scientific Education and Research Network (USERN), Tehran, 15875-4413 Iran
| | - Abdullah Aldhaher
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | | | - Thomas J. Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115 USA
| | - Ebrahim Mostafavi
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115 USA
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA 94305 USA
- Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305 USA
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14
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Kubczak M, Michlewska S, Bryszewska M, Aigner A, Ionov M. Nanoparticles for local delivery of siRNA in lung therapy. Adv Drug Deliv Rev 2021; 179:114038. [PMID: 34742826 DOI: 10.1016/j.addr.2021.114038] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/26/2021] [Accepted: 11/01/2021] [Indexed: 02/07/2023]
Abstract
An overview of the application of natural and synthetic, non-viral vectors for oligonucleotide delivery into the lung is presented in this review, with a special focus on lung cancer. Due to the specificity of the respiratory tract, its structure and natural barriers, the administration of drugs (especially those based on nucleic acids) is a particular challenge. Among widely tested non-viral drug and oligonucleotides carriers, synthetic polymers seem to be most promising. Unique properties of these nanoparticles allow for essentially unlimited possibilities regarding their design and modification. This gives hope that optimal nanoparticles with ideal nucleic acid carrier properties for lung cancer therapy will eventually emanate.
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Spray drying: Inhalable powders for pulmonary gene therapy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 133:112601. [DOI: 10.1016/j.msec.2021.112601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 11/04/2021] [Accepted: 12/04/2021] [Indexed: 12/13/2022]
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16
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Keil TWM, Zimmermann C, Baldassi D, Adams F, Friess W, Mehta A, Merkel OM. Impact of crystalline and amorphous matrices on successful spray drying of siRNA polyplexes for inhalation of nano-in-microparticles. ADVANCED THERAPEUTICS 2021; 4:2100073. [PMID: 34337144 PMCID: PMC7611418 DOI: 10.1002/adtp.202100073] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Indexed: 11/09/2022]
Abstract
To develop stable and inhalable dry powder formulations with long shelf life, we spray dried polyplexes consisting of siRNA and a polyethylenimine based block copolymer in presence of mannitol or trehalose. We investigated the effect of inlet (T-In) and outlet (T-Out) temperature on the recovery of siRNA as well as adsorption effects within the tubing material. Choosing a low abrasion silicon tubing prevented siRNA loss due to adsorption. Mannitol and trehalose formulations preserved siRNA integrity regardless of excipient concentration and temperature at T-Out below the siRNA melting temperature. Trehalose formulations allowed full siRNA recovery whereas mannitol formulations resulted in spray drying induced losses of ~20 % siRNA and of 50-60 % polymer. Mannitol formulations showed optimal aerodynamic characteristics as confirmed by next generation impaction analysis based upon siRNA content. All spray dried formulations resulted in GFP silencing comparable or better than freshly prepared polyplexes. To test if the observed results could be transferred, formulations of siRNA and transferrin-PEI conjugates were spray dried, characterized and used to transfect primary human T cells ex vivo. Results confirmed successful silencing of the Th2 transcription factor GATA3 in primary CD4+ T cells with spray dried formulations as a potential treatment for severe asthma.
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Affiliation(s)
- Tobias WM Keil
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians Universität München, 81377 Munich, Germany
| | - Christoph Zimmermann
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians Universität München, 81377 Munich, Germany
| | - Domizia Baldassi
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians Universität München, 81377 Munich, Germany
| | - Friederike Adams
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians Universität München, 81377 Munich, Germany
| | - Wolfgang Friess
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians Universität München, 81377 Munich, Germany
| | - Aditi Mehta
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians Universität München, 81377 Munich, Germany
| | - Olivia M Merkel
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians Universität München, 81377 Munich, Germany
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17
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Chang RYK, Chow MY, Khanal D, Chen D, Chan HK. Dry powder pharmaceutical biologics for inhalation therapy. Adv Drug Deliv Rev 2021; 172:64-79. [PMID: 33705876 DOI: 10.1016/j.addr.2021.02.017] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/17/2021] [Accepted: 02/25/2021] [Indexed: 12/13/2022]
Abstract
Therapeutic biologics such as genes, peptides, proteins, virus and cells provide clinical benefits and are becoming increasingly important tools in respiratory medicine. Pulmonary delivery of therapeutic biologics enables the potential for safe and effective treatment option for respiratory diseases due to high bioavailability while minimizing absorption into the systemic circulation, reducing off-target toxicity to other organs. Development of inhalable powder formulation requires stabilization of complex biological materials, and each type of biologics may present unique challenges and require different formulation strategy combined with manufacture process to ensure biological and physical stabilities during production and over shelf-life. This review examines key formulation strategies for stabilizing proteins, nucleic acids, virus (bacteriophages) and bacterial cells in inhalable powders. It also covers characterization methods used to assess physicochemical properties and aerosol performance of the powders, biological activity and structural integrity of the biologics, and chemical analysis at the nanoscale. Furthermore, the review includes manufacture technologies which are based on lyophilization and spray-drying as they have been applied to manufacture Food and Drug Administration (FDA)-approved protein powders. In perspective, formulation and manufacture of inhalable powders for biologic are highly challenging but attainable. The key requirements are the stability of both the biologics and the powder, along with the powder dispersibility. The formulation to be developed depends on the manufacture process as it will subject the biologics to different stresses (temperature, mechanical and chemical) which could lead to degradation by different pathways. Stabilizing excipients coupled with the suitable choice of process can alleviate the stability issues of inhaled powders of biologics.
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18
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Wang Q, Ge L, Wang L, Xu Y, Miao S, Yu G, Shen Y. Formulation optimization and in vitro antibacterial ability investigation of azithromycin loaded FDKP microspheres dry powder inhalation. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.03.062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ortega-Tenezaca B, González-Díaz H. IFPTML mapping of nanoparticle antibacterial activity vs. pathogen metabolic networks. NANOSCALE 2021; 13:1318-1330. [PMID: 33410431 DOI: 10.1039/d0nr07588d] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nanoparticles are useful antimicrobial drug-release systems, but some nanoparticles also exhibit antibacterial activity. However, investigation of their antibacterial activity is a difficult and slow process due to the numerous combinations of nanoparticle size, shape, and composition vs. biological tests, assay organisms, and multiple activity parameters to be measured. Additionally, the overuse of antibiotics has led to the emergence of resistant bacterial strains with different metabolic networks. Computational models may speed up this process, but the models reported to date do not to consider all the previous factors, and the data sources are dispersed and not curated. Thus, herein, we used an information fusion, perturbation-theory machine learning (IFPTML) approach, which is introduced by us for the first time, to fit a model for the discovery of antibacterial nanoparticles. The dataset studied had 15 classes of nanoparticles (1-100 nm) with most cases in the range of 1-50 nm vs. >20 pathogenic bacteria species with different metabolic networks. The nanoparticles studied included metal nanoparticles of Au, Ag, and Cu; oxide nanoparticles of Zn, Cu, La, Al, Fe, Sn, Ti, Cd, and Si; and metal salt nanoparticles of CuI and CdS. We used the SOFT.PTML software (our own application) with a user-friendly interface for the IFPTML calculations and a control statistics package. Using SOFT.PTML, we found a linear logistic regression equation that could model 4 biological activity parameters using only 8 variables with χ2 = 2265.75, p-level <0.05, sensitivity, Sn = 79.4, and specificity, Sp = 99.3, for 3213 cases (nanoparticle-bacteria pairs) in the training series. The model had Sn = 80.8 and Sp = 99.3 for 2114 cases in the external validation series. We also developed a random forest non-linear model with higher values of Sn and Sp = 98-99% in the training/validation series, although it was more complicated to use. SOFT.PTML has been demonstrated to be a useful tool for the analysis of complex data in nanotechnology. We also introduced a new anabolism-catabolism unbalance index of metabolic networks to reveal the biological connotation of the IFPTML predictions for antibacterial nanoparticles. These new models open a new door for the discovery of NPs vs. new bacterial species and strains with different topological structures of their metabolic networks.
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Affiliation(s)
- Bernabé Ortega-Tenezaca
- RNASA-IMEDIR, Computer Science Faculty, University of A Coruna, 15071 A Coruña, Spain and Amazon State University UEA, Puyo, Pastaza, Ecuador and Department of Organic and Inorganic Chemistry, University of Basque Country UPV/EHU, 48940 Leioa, Spain. and Biomedical Research Institute of A Coruña (INIBIC), University Hospital Complex of A Coruña (CHUAC), 15006 A Coruña, Spain and Center for Investigation on Technologies of Information and Communication (CITIC), University of Coruña (UDC), Campus de Elviña s/n, 15071 A Coruña, Spain
| | - Humberto González-Díaz
- Department of Organic and Inorganic Chemistry, University of Basque Country UPV/EHU, 48940 Leioa, Spain. and Basque Center for Biophysics CSIC-UPVEH, University of Basque Country UPV/EHU, 48940 Leioa, Spain and IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Biscay, Spain
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20
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Rabiee N, Bagherzadeh M, Ghadiri AM, Salehi G, Fatahi Y, Dinarvand R. ZnAl nano layered double hydroxides for dual functional CRISPR/Cas9 delivery and enhanced green fluorescence protein biosensor. Sci Rep 2020; 10:20672. [PMID: 33244160 PMCID: PMC7693303 DOI: 10.1038/s41598-020-77809-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 11/17/2020] [Indexed: 12/11/2022] Open
Abstract
Evaluation of the effect of different parameters for designing a non-viral vector in gene delivery systems has great importance. In this manner, 2D crystals, precisely layered double hydroxides, have attracted the attention of scientists due to their significant adjustability and low-toxicity and low-cost preparation procedure. In this work, the relationship between different physicochemical properties of LDH, including pH, size, zeta potential, and synthesis procedure, was investigated and optimized for CRISPR/Cas9 delivery and reverse fluorescence response to the EGFP. In this manner, ZnAl LDH and ZnAl HMTA LDH were synthesized and characterized and applied in the HEK-293 cell line to deliver CRISPR/Cas9. The results were optimized by different characterizations as well as Gel Electrophoresis and showed acceptable binding ability with the DNA that could be considered as a promising and also new gold-standard for the delivery of CRISPR/Cas9. Also, the relationship of the presence of tertiary amines (in this case, hexamethylenetetramine (HMTA) as the templates) in the structure of the ZnAl LDH, as well as the gene delivery application, was evaluated. The results showed more than 79% of relative cell viability in most of the weight ratios of LDH to CRISPR/Cas9; fully quenching the fluorescence intensity of the EGFP/LDH in the presence of 15 µg mL-1 of the protoporphyrins along with the detection limit of below 2.1 µg mL-1, the transfection efficiency of around 33% of the GFP positive cell for ZnAl LDH and more than 38% for the ZnAl LDH in the presence of its tertiary amine template.
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Affiliation(s)
- Navid Rabiee
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | | | | | - Ghazal Salehi
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | - Yousef Fatahi
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Rassoul Dinarvand
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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21
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Yan G, Feng Y, Wang H, Sun Y, Tang X, Zeng X, Lin L. Cellulose Fibrils Extracted from Bamboo Chips as a Reinforcing Material for Prolonged Drug Release. ChemistrySelect 2020. [DOI: 10.1002/slct.202001970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Guihua Yan
- College of Energy Xiamen University Xiamen 361102 P. R. China
| | - Yunchao Feng
- College of Energy Xiamen University Xiamen 361102 P. R. China
| | - Huiqiang Wang
- College of Energy Xiamen University Xiamen 361102 P. R. China
| | - Yong Sun
- College of Energy Xiamen University Xiamen 361102 P. R. China
- Fujian Engineering and Research Center of Clean and High-valued Technologies for Biomass Xiamen Key Laboratory of Clean and High-valued Applications of Biomass Xiamen University Xiamen 361102 P. R. China
| | - Xing Tang
- College of Energy Xiamen University Xiamen 361102 P. R. China
- Fujian Engineering and Research Center of Clean and High-valued Technologies for Biomass Xiamen Key Laboratory of Clean and High-valued Applications of Biomass Xiamen University Xiamen 361102 P. R. China
| | - Xianhai Zeng
- College of Energy Xiamen University Xiamen 361102 P. R. China
- Fujian Engineering and Research Center of Clean and High-valued Technologies for Biomass Xiamen Key Laboratory of Clean and High-valued Applications of Biomass Xiamen University Xiamen 361102 P. R. China
| | - Lu Lin
- College of Energy Xiamen University Xiamen 361102 P. R. China
- Fujian Engineering and Research Center of Clean and High-valued Technologies for Biomass Xiamen Key Laboratory of Clean and High-valued Applications of Biomass Xiamen University Xiamen 361102 P. R. China
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22
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Beg S, Alharbi KS, Alruwaili NK, Alotaibi NH, Almalki WH, Alenezi SK, Altowayan WM, Alshammari MS, Rahman M. Nanotherapeutic systems for delivering cancer vaccines: recent advances. Nanomedicine (Lond) 2020; 15:1527-1537. [PMID: 32410483 DOI: 10.2217/nnm-2020-0046] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
With an increase in the global burden of cancer-related deaths, the quest for developing new therapeutic solutions has taken momentum. In this regard, the idea of using cancer vaccines came to existence approximately 30 years ago, where gene therapy interventions have shown significant improvement in the therapeutic outcomes against several types of cancers. Cancer vaccines usually encounter a number of challenges with limited targeting ability to the tumors. Nanocarriers have been studied as a technological innovation for tumor targeting of gene therapeutics. This article provides a critical insight into the recent progress made in nanotherapeutic strategies for genetic vaccine delivery for treatment against various types of cancers. Moreover, the article intends to provide a summary of the research work being done on this topic.
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Affiliation(s)
- Sarwar Beg
- Department of Pharmaceutics, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi, India
| | - Khalid S Alharbi
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakakah, Saudi Arabia
| | - Nabil K Alruwaili
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakakah, Saudi Arabia
| | - Nasser Hadal Alotaibi
- Department of Clinical Pharmacy, College of Pharmacy, Jouf University, Sakakah, Saudi Arabia
| | - Waleed H Almalki
- Department of Pharmacology & Toxicology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Sattam K Alenezi
- Department of Pharmacology & Toxicology, Unaizah College of Pharmacy, Qassim University, Qassim, Saudi Arabia
| | - Waleed M Altowayan
- Department of Pharmacy Practice, College of Pharmacy, Qassim University, Qassim, Saudi Arabia
| | - Mohammed S Alshammari
- Department of Pharmacy Practice, Unaizah College of Pharmacy, Qassim University, Qassim, Saudi Arabia
| | - Mahfoozur Rahman
- Department of Pharmaceutical Sciences, SIHAS, Faculty of Health Science, Sam Higginbottom University of Agriculture, Technology & Sciences, Allahabad, India
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23
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Wang Y, Wang R, Wu S, An J, Liang Y, Hou L, Zhang Z. Self-responsive co-delivery system for remodeling tumor intracellular microenvironment to promote PTEN-mediated anti-tumor therapy. NANOSCALE 2020; 12:9392-9403. [PMID: 32141453 DOI: 10.1039/d0nr00563k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Delivering the pten gene into tumor cells to reacquire PTEN functionality is considered to be an attractive method for cancer treatment. However, the inhibition effect of the tumor intracellular microenvironment (TIME), especially at the high reactive oxygen species (ROS) level, on pten expression and PTEN protein functionality was nearly overlooked. Herein, the development of a potential strategy is described, which enhances PTEN-mediated anti-tumor capability by exhausting the intracellular ROS in TIME. To achieve this, poly(ethyleneimine) (PEI)-modified DSPE was introduced to protect the pten plasmid, and form liposomes for encapsulating the "scavenger" of oxidation homeostasis, epigallocatechin-3-gallate (EGCG). Notably, this was a simple system with improved safety compared which when compared with the use of PEI could accomplish efficient pten transfection and simultaneous disintegration to cause transient release of EGCG responding to the endosome environment through the "proton sponge effect". In the cytoplasm, EGCG depleted ROS and promoted the expression of the pten gene as well as restoring protein functionality, thus negatively regulating the PI3K-AKT signaling pathway. In vitro and in vivo results revealed that this system significantly inhibited tumor growth via remodeling of the TIME, and provided a promising way to control malignant tumors.
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Affiliation(s)
- Yifei Wang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China.
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24
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Keil TWM, Baldassi D, Merkel OM. T-cell targeted pulmonary siRNA delivery for the treatment of asthma. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2020; 12:e1634. [PMID: 32267622 DOI: 10.1002/wnan.1634] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 03/17/2020] [Accepted: 03/24/2020] [Indexed: 12/31/2022]
Abstract
Despite the large number of drugs available for the treatment of asthma, in 5-10% of the patients this disease is not well controlled. While most treatments palliate symptoms, those suffering from severe and uncontrolled asthma could benefit more from a therapeutic approach addressing the root problem. An siRNA-based therapy targeting the transcription factor GATA3 in activated T helper cells subtype 2 (TH 2 cells), one of the key upstream factors involved in asthma, could therefore represent a promising strategy. However, the difficult-to-transfect cell type has not extensively been explored for nucleic acid therapeutics. In this regard, our group first identified a suitable pathway, that is, transferrin receptor mediated uptake, to target efficiently and specifically activated TH 2 cells with a transferrin-polyethyleneimine (PEI) conjugate which forms polyplexes with siRNA. This system, despite efficient uptake in activated T cells (ATCs) in vivo, suffered from poor endosomal release and was later improved by a combination with a melittin-PEI conjugate. The new formulation showed improved endosomal escape and gene silencing efficacy. Additionally, in order to develop a clinically relevant dosage form for pulmonary delivery of siRNA we have lately focused on a dry powder formulation by spray drying (SD) for the production of inhalable nano-in-microparticles. In proof-of-concept experiments, DNA/PEI polyplexes were used in order to implement analytics and engineer process parameters to pave the way for SD also siRNA containing polyplexes and more sophisticated systems in general. Ultimately, our efforts are devoted to the development of a novel treatment of asthma that can be translated from bench to bedside and are reviewed and discussed here in the context of the current literature. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Respiratory Disease Biology-Inspired Nanomaterials > Nucleic Acid-Based Structures Biology-Inspired Nanomaterials > Protein and Virus-Based Structures.
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Affiliation(s)
- Tobias W M Keil
- Pharmaceutical Technology and Biopharmaceutics, LMU Munich, Munich, Germany
| | - Domizia Baldassi
- Pharmaceutical Technology and Biopharmaceutics, LMU Munich, Munich, Germany
| | - Olivia M Merkel
- Pharmaceutical Technology and Biopharmaceutics, LMU Munich, Munich, Germany
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Vaughan HJ, Green JJ, Tzeng SY. Cancer-Targeting Nanoparticles for Combinatorial Nucleic Acid Delivery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1901081. [PMID: 31222852 PMCID: PMC6923623 DOI: 10.1002/adma.201901081] [Citation(s) in RCA: 129] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 04/13/2019] [Indexed: 05/03/2023]
Abstract
Nucleic acids are a promising type of therapeutic for the treatment of a wide range of conditions, including cancer, but they also pose many delivery challenges. For efficient and safe delivery to cancer cells, nucleic acids must generally be packaged into a vehicle, such as a nanoparticle, that will allow them to be taken up by the target cells and then released in the appropriate cellular compartment to function. As with other types of therapeutics, delivery vehicles for nucleic acids must also be designed to avoid unwanted side effects; thus, the ability of such carriers to target their cargo to cancer cells is crucial. Classes of nucleic acids, hurdles that must be overcome for effective intracellular delivery, types of nonviral nanomaterials used as delivery vehicles, and the different strategies that can be employed to target nucleic acid delivery specifically to tumor cells are discussed. Additonally, nanoparticle designs that facilitate multiplexed delivery of combinations of nucleic acids are reviewed.
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Affiliation(s)
- Hannah J Vaughan
- Department of Biomedical Engineering, Translational Tissue Engineering Center and Institute for NanoBioTechnology, Johns Hopkins University School of Medicine, 400 North Broadway, Smith Building 5001, Baltimore, MD, 21231, USA
| | - Jordan J Green
- Department of Biomedical Engineering, Translational Tissue Engineering Center and Institute for NanoBioTechnology, Johns Hopkins University School of Medicine, 400 North Broadway, Smith Building 5001, Baltimore, MD, 21231, USA
| | - Stephany Y Tzeng
- Department of Biomedical Engineering, Translational Tissue Engineering Center and Institute for NanoBioTechnology, Johns Hopkins University School of Medicine, 400 North Broadway, Smith Building 5001, Baltimore, MD, 21231, USA
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26
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Conte R, Valentino A, Di Cristo F, Peluso G, Cerruti P, Di Salle A, Calarco A. Cationic Polymer Nanoparticles-Mediated Delivery of miR-124 Impairs Tumorigenicity of Prostate Cancer Cells. Int J Mol Sci 2020; 21:ijms21030869. [PMID: 32013257 PMCID: PMC7038067 DOI: 10.3390/ijms21030869] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 01/27/2020] [Accepted: 01/28/2020] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRNAs) play a pivotal role in regulating the expression of genes involved in tumor development, invasion, and metastasis. In particular, microRNA-124 (miR-124) modulates the expression of carnitine palmitoyltransferase 1A (CPT1A) at the post-transcriptional level, impairing the ability of androgen-independent prostate cancer (PC3) cells to completely metabolize lipid substrates. However, the clinical translation of miRNAs requires the development of effective and safe delivery systems able to protect nucleic acids from degradation. Herein, biodegradable polyethyleneimine-functionalized polyhydroxybutyrate nanoparticles (PHB-PEI NPs) were prepared by aminolysis and used as cationic non-viral vectors to complex and deliver miR-124 in PC3 cells. Notably, the PHB-PEI NPs/miRNA complex effectively protected miR-124 from RNAse degradation, resulting in a 30% increase in delivery efficiency in PC3 cells compared to a commercial transfection agent (Lipofectamine RNAiMAX). Furthermore, the NPs-delivered miR-124 successfully impaired hallmarks of tumorigenicity, such as cell proliferation, motility, and colony formation, through CPT1A modulation. These results demonstrate that the use of PHB-PEI NPs represents a suitable and convenient strategy to develop novel nanomaterials with excellent biocompatibility and high transfection efficiency for cancer therapy.
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Affiliation(s)
- Raffaele Conte
- Research Institute on Terrestrial Ecosystems (IRET)—CNR, Via Pietro Castellino 111, 80131 Naples, Italy; (R.C.); (G.P.); (A.D.S.)
| | - Anna Valentino
- Elleva Pharma s.r.l. via P. Castellino, 111 – 80131 Naples, Italy; (A.V.); (F.D.C.)
| | - Francesca Di Cristo
- Elleva Pharma s.r.l. via P. Castellino, 111 – 80131 Naples, Italy; (A.V.); (F.D.C.)
| | - Gianfranco Peluso
- Research Institute on Terrestrial Ecosystems (IRET)—CNR, Via Pietro Castellino 111, 80131 Naples, Italy; (R.C.); (G.P.); (A.D.S.)
| | - Pierfrancesco Cerruti
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR) Via Campi Flegrei, 34, 80078 Pozzuoli (NA), Italy
- Correspondence: (P.C.); (A.C.)
| | - Anna Di Salle
- Research Institute on Terrestrial Ecosystems (IRET)—CNR, Via Pietro Castellino 111, 80131 Naples, Italy; (R.C.); (G.P.); (A.D.S.)
| | - Anna Calarco
- Research Institute on Terrestrial Ecosystems (IRET)—CNR, Via Pietro Castellino 111, 80131 Naples, Italy; (R.C.); (G.P.); (A.D.S.)
- Correspondence: (P.C.); (A.C.)
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27
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Li Y, Gan Y, Li C, Yang YY, Yuan P, Ding X. Cell membrane-engineered hybrid soft nanocomposites for biomedical applications. J Mater Chem B 2020; 8:5578-5596. [DOI: 10.1039/d0tb00472c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
An overview of various cell membrane-engineered hybrid soft nanocomposites for medical applications.
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Affiliation(s)
- Yuzhen Li
- School of Pharmaceutical Sciences (Shenzhen)
- Sun Yat-sen University
- Shenzhen 518107
- China
| | - Yingying Gan
- School of Pharmaceutical Sciences (Shenzhen)
- Sun Yat-sen University
- Shenzhen 518107
- China
| | - Chengnan Li
- School of Pharmaceutical Sciences (Shenzhen)
- Sun Yat-sen University
- Shenzhen 518107
- China
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology
- Singapore 138669
- Singapore
| | - Peiyan Yuan
- School of Pharmaceutical Sciences (Shenzhen)
- Sun Yat-sen University
- Shenzhen 518107
- China
| | - Xin Ding
- School of Pharmaceutical Sciences (Shenzhen)
- Sun Yat-sen University
- Shenzhen 518107
- China
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28
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Han J, Na K. Transfection of the TRAIL gene into human mesenchymal stem cells using biocompatible polyethyleneimine carbon dots for cancer gene therapy. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.02.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Cai W, Chen M, Fan J, Jin H, Yu D, Qiang S, Peng C, Yu J. Fluorescein sodium loaded by polyethyleneimine for fundus fluorescein angiography improves adhesion. Nanomedicine (Lond) 2019; 14:2595-2611. [PMID: 31361188 DOI: 10.2217/nnm-2019-0008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Aim: To improve the retention of fluorescein sodium (FS) as a kind of clinical contrast agent for fundus fluorescein angiography (FFA). Materials & methods: Polyethyleneimine (PEI) was designed to synthesize PEI–NHAc–FS nanoparticles (NPs), and the formed NPs were characterized by both physicochemical properties and their effects on FFA. Results: Compared with free FS, PEI–NHAc–FS NPs showed similar optical performance, and could obviously reduce cellular adsorption and uptake both in vitro and in vivo, which could promote the metabolism of NPs in ocular blood vessels. Conclusion: PEI–NHAc–FS NPs represent a smart nanosize fluorescence contrast agent, which hold promising potential for clinical FFA diagnosis, therapy and research work.
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Affiliation(s)
- Wenting Cai
- Department of Ophthalmology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, PR China
| | - Meixiu Chen
- State Key Laboratory for Modification of Chemical Fibers & Polymer Materials, College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai, 201620, PR China
| | - Jiaqi Fan
- Department of Ophthalmology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, PR China
- Department of Ophthalmology, Nanjing Medical University, Nanjing, 211166, PR China
| | - Huizi Jin
- Department of Ophthalmology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, PR China
| | - Donghui Yu
- Department of Ophthalmology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, PR China
| | - Sujing Qiang
- Department of Central Laboratory, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, PR China
| | - Chen Peng
- Cancer Center, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, PR China
| | - Jing Yu
- Department of Ophthalmology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, PR China
- Department of Ophthalmology, Ninghai First Hospital, Ninghai, Zhejiang, 315600, PR China
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30
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Controlling complexation/decomplexation and sizes of polymer-based electrostatic pDNA polyplexes is one of the key factors in effective transfection. Colloids Surf B Biointerfaces 2019; 184:110497. [PMID: 31536938 DOI: 10.1016/j.colsurfb.2019.110497] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/22/2019] [Accepted: 09/07/2019] [Indexed: 12/20/2022]
Abstract
The delivery of plasmid DNA (pDNA) using polycations has been investigated for several decades; however, obstacles that limit efficient gene delivery still hinder the clinical application of gene therapy. One of the major limiting factors is controlling pDNA binding affinity with polymers to control the complexation and decomplexation of polyplexes. To address this challenge, polycations of α-poly(L-lysine) (APL) and ε-poly(L-lysine) (EPL) were used to prepare variable complexation/decomplexation polyplexes with binding affinities ranging from too tight to too loose and sizes ranging from small to large. APL-EPL/ATP-pDNA polyplexes were also prepared to compare the effects of endosomolytic ATP on complexation/decomplexation and the sizes of polyplexes. The results showed that smaller and tighter polyplexes delivered more pDNA into the cells and into the nucleus than the larger and looser polyplexes. Larger polyplexes exhibited slower cytosolic transport and consequently less nuclear delivery of pDNA than smaller polyplexes. Tighter polyplexes exhibited poor pDNA release in the nucleus, leading to no improvement in transfection efficiency. Thus, polyplexes should maintain a balance between complexation and decomplexation and should have optimal sizes for effective cellular uptake, cytosolic transport, nuclear import, and gene expression. Understanding the effects of complexation/decomplexation and size is important when designing effective polymer-based electrostatic gene carriers.
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31
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Esteban-Pérez S, Bravo-Osuna I, Andrés-Guerrero V, Molina-Martínez IT, Herrero-Vanrell R. Trojan Microparticles Potential for Ophthalmic Drug Delivery. Curr Med Chem 2019; 27:570-582. [PMID: 31486746 DOI: 10.2174/0929867326666190905150331] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 07/11/2019] [Accepted: 08/30/2019] [Indexed: 11/22/2022]
Abstract
The administration of drugs to treat ocular disorders still remains a technological challenge in this XXI century. Although there is an important arsenal of active molecules useful to treat ocular diseases, ranging from classical compounds to biotechnological products, currenty, no ideal delivery system is able to profit all their therapeutic potential. Among the Intraocular Drug Delivery Systems (IODDS) proposed to overcome some of the most important limitations, microsystems and nanosystems have raised high attention. While microsystems are able to offer long-term release after intravitreal injection, nanosystems can protect the active compound from external environment (reducing their clearance) and direct it to its target tissues. In recent years, some researchers have explored the possibility of combining micro and nanosystems in "Nanoparticle-in-Microparticle (NiMs)" systems or "trojan systems". This excellent idea is not exempt of technological problems, remains partially unsolved, especially in the case of IODDS. The objective of the present review is to show the state of art concerning the design, preparation and characterization of trojan microparticles for drug delivery and to remark their potential and limitations as IODDS, one of the most important challenges faced by pharmaceutical technology at the moment.
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Affiliation(s)
- Sergio Esteban-Pérez
- Complutense University, InnOftal Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Plaza Ramon y Cajal s/n, Madrid 28040, Spain
| | - Irene Bravo-Osuna
- Complutense University, InnOftal Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Plaza Ramon y Cajal s/n, Madrid 28040, Spain.,Ocular Pathology National Net (OFTARED) of the Institute of Health Carlos III, Health Research Institute of the San Carlos Clinical Hospital (IdISSC), Madrid, Spain
| | - Vanessa Andrés-Guerrero
- Complutense University, InnOftal Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Plaza Ramon y Cajal s/n, Madrid 28040, Spain
| | - Irene T Molina-Martínez
- Complutense University, InnOftal Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Plaza Ramon y Cajal s/n, Madrid 28040, Spain
| | - Rocío Herrero-Vanrell
- Complutense University, InnOftal Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Plaza Ramon y Cajal s/n, Madrid 28040, Spain
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32
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Keil TWM, Feldmann DP, Costabile G, Zhong Q, da Rocha S, Merkel OM. Characterization of spray dried powders with nucleic acid-containing PEI nanoparticles. Eur J Pharm Biopharm 2019; 143:61-69. [PMID: 31445157 DOI: 10.1016/j.ejpb.2019.08.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 07/26/2019] [Accepted: 08/20/2019] [Indexed: 02/08/2023]
Abstract
Localized aerosol delivery of gene therapies is a promising treatment of severe pulmonary diseases including lung cancer, cystic fibrosis, COPD and asthma. The administration of drugs by inhalation features multiple benefits including an enhanced patient acceptability and compliance. The application of a spray dried powder formulation has advantages over solutions due to their increased stability and shelf life. Furthermore, optimal sizes of the powder can be obtained by spray drying to allow a deep lung deposition. The present study optimized the parameters involved with spray drying polyplexes formed by polyethylenimine (PEI) and nucleic acids in inert excipients to generate a nano-embedded microparticle (NEM) powder with appropriate aerodynamic diameter. Furthermore, the effects of the excipient matrix used to generate the NEM powder on the biological activity of the nucleic acid and the ability to recover the embedded nanoparticles was investigated. The study showed that bioactivity and nucleic acid integrity was preserved after spray drying, and that polyplexes could be reconstituted from the dry powders made with trehalose but not mannitol as a stabilizer. Scanning electron microscopy (SEM) showed trehalose formulations that formed fused, lightly corrugated spherical particles in the range between 1 and 5 µm, while mannitol formulations had smooth surfaces and consisted of more defined particles. After redispersion of the microparticles in water, polyplex dispersions are obtained that are comparable to the initial formulations before spray drying. Cellular uptake and transfection studies conducted in lung adenocarcinoma cells show that redispersed trehalose particles performed similar to or better than polyplexes that were not spray dried. A method for quantifying polymer and nucleic acid loss following spray drying was developed in order to ensure that equal nucleic acid amounts were used in all in vitro experiments. The results confirm that spray dried NEM formulations containing nucleic acids can be prepared with characteristics known to be optimal for inhalation therapy.
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Affiliation(s)
- Tobias W M Keil
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians-Universität München, 81337 Munich, Germany
| | - Daniel P Feldmann
- Department of Oncology, Wayne State University School of Medicine, 4100 John R St, Detroit, MI 48201, United States; Department of Pharmaceutical Sciences, Wayne State University, 259 Mack Ave, Detroit, MI 48201, United States
| | - Gabriella Costabile
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians-Universität München, 81337 Munich, Germany
| | - Qian Zhong
- Department of Pharmaceutics, College of Pharmacy, Virginia Commonwealth University, Richmond, VA 23298, United States; Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA 23284, United States
| | - Sandro da Rocha
- Department of Pharmaceutics, College of Pharmacy, Virginia Commonwealth University, Richmond, VA 23298, United States; Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA 23284, United States
| | - Olivia M Merkel
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians-Universität München, 81337 Munich, Germany; Department of Oncology, Wayne State University School of Medicine, 4100 John R St, Detroit, MI 48201, United States; Department of Pharmaceutical Sciences, Wayne State University, 259 Mack Ave, Detroit, MI 48201, United States.
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33
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Formulation of RNA interference-based drugs for pulmonary delivery: challenges and opportunities. Ther Deliv 2019; 9:731-749. [PMID: 30277138 DOI: 10.4155/tde-2018-0029] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
With recent advances in the field of RNAi-based therapeutics, it is possible to make any target gene 'druggable', at least in principle. The present review focuses on aspects critical for pulmonary delivery of formulations of nucleic acid-based drugs. The first part introduces the therapeutic potential of RNAi-based drugs for the treatment of lung diseases. Subsequently, we discuss opportunities for formulation-enabled pulmonary delivery of RNAi drugs in light of key physicochemical properties and physiological barriers. In the following section, an overview is included of methodologies for imparting inhalable characteristics to nucleic acid formulations. Finally, we review one of the bottlenecks in the early preclinical testing of inhalable nucleic acid-based formulations, in other words, devices suitable for pulmonary administration of powder-based formulations in rodents.
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34
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Xin X, Lin F, Wang Q, Yin L, Mahato RI. ROS-Responsive Polymeric Micelles for Triggered Simultaneous Delivery of PLK1 Inhibitor/miR-34a and Effective Synergistic Therapy in Pancreatic Cancer. ACS APPLIED MATERIALS & INTERFACES 2019; 11:14647-14659. [PMID: 30933478 PMCID: PMC6712559 DOI: 10.1021/acsami.9b02756] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Ineffective drug delivery and poor prognosis are two major challenges in the treatment of pancreatic ductal adenocarcinoma (PDAC). While there is significant downregulation of tumor suppressor microRNA-34a (miR-34a), which targets many oncogenes related to proliferation, apoptosis, and invasion, high expression level of Polo-like kinase 1 (PLK1) is closely associated with short survival rates of pancreatic cancer patients. Therefore, the objective is to codeliver miR-34a mimic and small molecule PLK1 inhibitor volasertib (BI6727) using poly(ethylene glycol)-poly[aspartamidoethyl( p-boronobenzyl)diethylammonium bromide] (PEG-B-PAEBEA). This polymer could self-assemble into micelles of ∼100 nm with 10% drug loading of volasertib and form a complex with miR-34a at the N/P ratio of 18 and higher. Combination treatment of volasertib and miR-34a displayed the synergistic effect and superior antiproliferative activity along with an enhanced G2/M phase arrest and suppression of colony formation, leading to cell death due to potential c-myc targeting therapeutics. Orthotopic pancreatic tumor bearing NSG mice were scanned for fluorescence by IVIS after systemic administration of micelles encapsulating volasertib and miR-34a at doses of 5 and 1 mg/kg, respectively. Cy5.5 concentration in plasma and major organs was determined by measuring fluorescence intensity. There was significant reduction in tumor volume, and histological examination of major organs suggested negligible systemic toxicity. In conclusion, PEG-B-PAEBEA micelles carrying volasertib and miR-34a mimic have the potential to treat pancreatic cancer.
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Affiliation(s)
- Xiaofei Xin
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Feng Lin
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Qiyue Wang
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Lifang Yin
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Ram I. Mahato
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
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35
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Xiao YP, Zhang J, Liu YH, Zhang JH, Yu QY, Huang Z, Yu XQ. Low molecular weight PEI-based fluorinated polymers for efficient gene delivery. Eur J Med Chem 2018; 162:602-611. [PMID: 30472606 DOI: 10.1016/j.ejmech.2018.11.041] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 11/16/2018] [Accepted: 11/16/2018] [Indexed: 02/02/2023]
Abstract
Fluorinated biomaterials have been reported to have promising features as non-viral gene carriers. In this study, a series of fluorinated polymeric gene carriers were synthesized via Michael addition from low molecular weight polyethyleneimine (PEI) and fluorobenzoic acids (FBAs)-based linking compounds with different numbers of fluorine atoms. The structure-activity relationship (SAR) of these materials was systematically investigated. SAR studies showed that fluorine could screen the positive charge of these polymers. However, this shielding effect of fluorine would endow fluorinated polymers with good balance between DNA condensation and release. In vitro transfection results suggested that these fluorinated polymers could mediate efficient gene delivery. Flow cytometry and confocal microscopy studies demonstrated that more efficient cell uptake could be achieved by fluorinated materials with more fluorine atoms. Cytotoxicity assays showed that these fluorinated materials exhibited very low cytotoxicity even at high mass ratios. This study demonstrates that FBA-based fluorinated biopolymers have the potential for practical application.
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Affiliation(s)
- Ya-Ping Xiao
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Ji Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu, 610064, PR China.
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Ju-Hui Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Qing-Ying Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Zheng Huang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu, 610064, PR China.
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36
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Ahn J, Cho CS, Cho SW, Kang JH, Kim SY, Min DH, Song JM, Park TE, Jeon NL. Investigation on vascular cytotoxicity and extravascular transport of cationic polymer nanoparticles using perfusable 3D microvessel model. Acta Biomater 2018; 76:154-163. [PMID: 29807185 DOI: 10.1016/j.actbio.2018.05.041] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 05/16/2018] [Accepted: 05/24/2018] [Indexed: 12/12/2022]
Abstract
Vascular networks are the first sites exposed to cationic polymer nanoparticles (NPs) administered intravenously, and thus function as a barrier for NPs reaching the target organ. While cationic polymer NPs have been intensively studied as non-viral delivery systems, their biological effects in human microvessels have been poorly investigated due to a lack of appropriate in vitro systems. Here, we employed a three-dimensional microvessel on a chip, which accurately models in vivo conditions. An open and perfused microvessel surrounded by pericytes was shown to reproduce the important features of living vasculature, including barrier function and biomarkers. Using this microvessel chip, we observed contraction of the microvascular lumen induced by perfused polyethylenimine (PEI)/DNA NPs. We demonstrated that the oxidative stress present when microvessels were exposed to PEI NPs led to rearrangement of microtubules resulting in microvessel contraction. Furthermore, the transcytotic behavior of PEI NPs was analyzed in the microvessel by monitoring the escape of PEI NPs from the microvascular lumen into the perivascular region, which was not possible in two-dimensional culture systems. With our new understanding of the different behaviors of cationic polymer NPs depending on their transcytotic route, we suggest that caveolae-mediated transcytosis is a powerful route for efficient extravascular transport. STATEMENT OF SIGNIFICANCE Microvascular networks are not only biological system constituting largest surface area in the body and but also first site exposed to nanoparticle in vivo. While cationic polymer NPs have been intensively studied as non-viral delivery systems, its biological effects in human microvessel have been poorly investigated due to lack of appropriate in vitro systems. Here, we microengineered an open and perfused 3D pericyte incorporated microvessel model which possesses same morphological characteristic of in vivo. Using the microengineered model, this study represents the first report of transcytotic behavior of NPs in 3D microvessel, and its effect on extravasation efficiency. Our study lays the groundwork for the integration of innovative technologies to examine blood vessel-nanoparticle interaction, which a critical but ill-defined phenomenon.
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Affiliation(s)
- Jungho Ahn
- School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, South Korea; George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, North Ave NW, Atlanta, GA 30332, USA
| | - Chong-Su Cho
- Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, South Korea
| | - Seong Woo Cho
- Ulsan National Institute of Science and Technology, Ulsan 44914, South Korea
| | - Joo H Kang
- Ulsan National Institute of Science and Technology, Ulsan 44914, South Korea
| | - Sung-Yon Kim
- Department of Biophysics and Chemical Biology, Seoul National University, Seoul, South Korea
| | - Dal-Hee Min
- Department of Chemistry, Seoul National University, Seoul, South Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, Seoul 08826, South Korea
| | - Tae-Eun Park
- Ulsan National Institute of Science and Technology, Ulsan 44914, South Korea.
| | - Noo Li Jeon
- School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, South Korea.
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