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Vlasova KY, Kerr A, Pennock ND, Jozic A, Sahel DK, Gautam M, Murthy NTV, Roberts A, Ali MW, MacDonald KD, Walker J, Luxenhofer R, Sahay G. Synthesis of ionizable lipopolymers using split-Ugi reaction for pulmonary delivery of various size RNAs and gene editing. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.11.598497. [PMID: 38915714 PMCID: PMC11195133 DOI: 10.1101/2024.06.11.598497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
We present an efficient approach for synthesizing cationic poly(ethylene imine) derivatives using the multicomponent split-Ugi reaction to rapidly create a library of complex functional ionizable lipopolymers. We synthesized a diverse library of 155 polymers, formulated them into polyplexes to establish structure-activity relationships crucial for endosomal escape and efficient transfection. After discovering a lead structure, lipopolymer-lipid hybrid nanoparticles are introduced to preferentially deliver to and elicit effective mRNA transfection in lung endothelium and immune cells, including T cells with low in vivo toxicity. The lipopolymer-lipid hybrid nanoparticles showed 300-fold improvement in systemic mRNA delivery to the lung compared to in vivo -JetPEI ® . Lipopolymer-lipid hybrid nanoparticles demonstrated efficient delivery of mRNA-based therapeutics for treatment of two different disease models. Lewis Lung cancer progression was significantly delayed after treatment with loaded IL-12 mRNA in U155@lipids after repeated i.v. administration. Systemic delivery of human CFTR (hCFTR) mRNA resulted in production of functional form of CFTR protein in the lungs. The functionality of hCFTR protein was confirmed by restoration of CFTR- mediated chloride secretion in conductive airway epithelia in CFTR knockout mice after nasal instillation of hCFTR mRNA loaded U155@lipids. We further showed that, U155@lipids nanoparticles can deliver complex CRISPR-Cas9 based RNA cargo to the lung, achieving 5.6 ± 2.4 % gene editing in lung tissue. Moreover, we demonstrated successful PD-1 gene knockout of T cells in vivo . Our results highlight a versatile delivery platform for systemic delivering of mRNA of various sizes for gene therapy for a variety of therapeutics.
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Shtykalova S, Deviatkin D, Freund S, Egorova A, Kiselev A. Non-Viral Carriers for Nucleic Acids Delivery: Fundamentals and Current Applications. Life (Basel) 2023; 13:903. [PMID: 37109432 PMCID: PMC10142071 DOI: 10.3390/life13040903] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/21/2023] [Accepted: 03/24/2023] [Indexed: 03/31/2023] Open
Abstract
Over the past decades, non-viral DNA and RNA delivery systems have been intensively studied as an alternative to viral vectors. Despite the most significant advantage over viruses, such as the lack of immunogenicity and cytotoxicity, the widespread use of non-viral carriers in clinical practice is still limited due to the insufficient efficacy associated with the difficulties of overcoming extracellular and intracellular barriers. Overcoming barriers by non-viral carriers is facilitated by their chemical structure, surface charge, as well as developed modifications. Currently, there are many different forms of non-viral carriers for various applications. This review aimed to summarize recent developments based on the essential requirements for non-viral carriers for gene therapy.
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Affiliation(s)
- Sofia Shtykalova
- Department of Genomic Medicine, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, Mendeleevskaya Line 3, 199034 Saint-Petersburg, Russia
- Faculty of Biology, Saint-Petersburg State University, Universitetskaya Embankment 7-9, 199034 Saint-Petersburg, Russia
| | - Dmitriy Deviatkin
- Department of Genomic Medicine, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, Mendeleevskaya Line 3, 199034 Saint-Petersburg, Russia
- Faculty of Biology, Saint-Petersburg State University, Universitetskaya Embankment 7-9, 199034 Saint-Petersburg, Russia
| | - Svetlana Freund
- Department of Genomic Medicine, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, Mendeleevskaya Line 3, 199034 Saint-Petersburg, Russia
- Faculty of Biology, Saint-Petersburg State University, Universitetskaya Embankment 7-9, 199034 Saint-Petersburg, Russia
| | - Anna Egorova
- Department of Genomic Medicine, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, Mendeleevskaya Line 3, 199034 Saint-Petersburg, Russia
| | - Anton Kiselev
- Department of Genomic Medicine, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, Mendeleevskaya Line 3, 199034 Saint-Petersburg, Russia
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Diaz IL, Jérôme V, Freitag R, Perez LD. Development of poly(ethyleneimine) grafted amphiphilic copolymers: Evaluation of their cytotoxicity and ability to complex DNA. J BIOACT COMPAT POL 2021. [DOI: 10.1177/08839115211053925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Poly(ethyleneimine) (PEI) is one of the most widely used cationic polymers for gene delivery. The high molecular weight polymer, which is commercially available, is highly efficient but also very cytotoxic. The reduction in charge density by using nonlinear architectures based on low molecular weight (LMW) PEI is a promising approach to produce safer DNA-vectors. Herein, a group of cationic graft copolymers with different composition containing a hydrophobic biocompatible backbone and LMW linear PEI (lPEI) grafts obtained by ring opening polymerization and click chemistry was studied. The self-assembly and DNA complexation behavior of these materials was analyzed by the gel retardation assay, zeta potential measurements, and dynamic light scattering. The copolymers formed positively charged particles in water with average sizes between 270 and 377 nm. After they were added to DNA in serum-free medium, these particles acquired negative/near-neutral charges and increased in size depending on the N/P ratio. All copolymers showed reduced cytotoxicity compared to the 25 kDa lPEI used as reference, but the transfection efficiency was reduced. This result suggested that the cationic segments were too small to fully condense the DNA and promote cellular uptake, even with the use of several grafts and the introduction of hydrophobic domains. The trends found in this research showed that a higher degree of hydrophobicity and a higher grafting density can enhance the interaction between the copolymers and DNA. These trends could direct further structural modifications in the search for effective and safe vectors based on this polycation.
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Affiliation(s)
- Ivonne L Diaz
- Departamento de Química, Universidad Nacional de Colombia, Bogotá DC, Colombia
| | - Valérie Jérôme
- Process Biotechnology, University of Bayreuth, Bayreuth, Germany
| | - Ruth Freitag
- Process Biotechnology, University of Bayreuth, Bayreuth, Germany
| | - León D Perez
- Departamento de Química, Universidad Nacional de Colombia, Bogotá DC, Colombia
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Lee J, Ngo HV, Jin G, Park C, Park JB, Tran PHL, Tran TTD, Nguyen VH, Lee BJ. Effect of pH adjustment and ratio of oppositely charged polymers on the mechanistic performance and sustained release of volatile perfume in interpolyelectrolyte complex microcapsules. Int J Pharm 2021; 604:120672. [PMID: 33961955 DOI: 10.1016/j.ijpharm.2021.120672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/26/2021] [Accepted: 05/01/2021] [Indexed: 11/27/2022]
Abstract
In this study, volatile perfume was encapsulated in microcapsules (MCs) via interpolyelectrolyte complexes (IPECs) of oppositely charged polymers, with high encapsulation efficiency, to be delivered in a sustained manner. Positively charged chitosan (CTS) and negatively charged Eudragit® S100 (ES100) were used as eco-friendly biopolymers. Limonene (LMN) was selected as the model perfume. First, the solution of LMN in ethyl acetate and poloxamer 407 (POX407) in acidic solution was emulsified using ultrasonication. CTS and ES100 were added in that particular order to form o/w emulsion. LMN-loaded microcapsules (LMN-MCs) were prepared by adjusting the pH and freeze-drying for solidification. The electrostatic interactions of CTS and ES100 to form IPECs were highly dependent on pH, changing in the microscopic images of emulsion droplets and zeta potential. The NH3+ group of CTS and the COO- group of ES100 caused the electrostatic interactions at a specific pH. The formation mechanism of LMN-MCs was successfully validated using instrumental analysis, charge density, and energy dispersive X-ray spectrometer (EDS) mapping. Encapsulation efficiency, loading content, and release rates of LMN-MCs varied according to the ratios of CTS and ES100, demonstrating optimal performance at a 1:1 ratio. The current LMN-MCs could provide a simple manufacturing process with high performance in terms of encapsulation efficiency (>94%), drug loading, yield and sustained release of volatile perfume for 120 h.
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Affiliation(s)
- Juhyun Lee
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
| | - Hai V Ngo
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
| | - Gang Jin
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
| | - Chulhun Park
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta T6G 2H7, Canada
| | - Jun-Bom Park
- College of Pharmacy, Sahmyook University, Seoul 01795, Republic of Korea
| | | | - Thao T D Tran
- Institute of Research and Development, Duy Tan University, Danang 550000, Viet Nam; The Faculty of Pharmacy, Duy Tan University, Danang 550000, Viet Nam
| | - Van H Nguyen
- Pharmaceutical Engineering Laboratory, Biomedical Engineering School, International University, Vietnam National University, Ho Chi Minh City 70000, Viet Nam
| | - Beom-Jin Lee
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea.
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Singh R, Kumar P. Disaccharide-polyethylenimine organic nanoparticles as non-toxic in vitro gene transporters and their anticancer potential. Bioorg Chem 2021; 112:104918. [PMID: 33932768 DOI: 10.1016/j.bioorg.2021.104918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 04/01/2021] [Accepted: 04/13/2021] [Indexed: 12/26/2022]
Abstract
Polyethylenimines (PEIs) have been shown as efficient gene delivery vectors due to their unique properties, however, toxicity as well as non-specific interactions with the tissues/cells because of high charge density have hampered their use in clinical applications. To counter these concerns, here, we have prepared disachharide-PEI organic nanoparticles by mixing PEIs with non-reducing disaccharides, i.e. trehalose (TPONs) and sucrose (SPONs), under mild conditions. The fabricated nanoparticles were complexed with pDNA and size of these complexes was found in the range of ~130-162 nm with zeta potential ~ +8-25 mV. Further evaluation of these nanoparticles revealed that substitution of disaccharides on PEIs successfully augmented cell viability. Transfection efficiency exhibited by these complexes was significantly higher than the unmodified polymer and the standard, Lipofectamine, complexes. Fabrication of organic nanoparticles did not alter the buffering capacity considerably which was found to be instrumental during endosomal escape of the complexes. Among both the series of nanoparticles, trehalose-PEI organic nanoparticles (TPONs) exhibited greater pDNA transportation potential than sucrose-PEI organic nanoparticles (SPONs) which was also established by flow cytometric data, wherein percent cells expressing GFP was higher in case of TP/pDNA complexes as compared to SP/pDNA complexes. Interestingly, TPONs also showed promising anticancer activity on cancer cell lines i.e. Mg63, MCF-7 and HepG2. Overall, the results advocate promising potential of disaccharide-PEI organic nanoparticles as efficient gene delivery agents which can be used effectively in future gene therapy applications along with anti-cancer competence of TPONs.
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Affiliation(s)
- Reena Singh
- Nucleic Acids Research Laboratory, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi 110007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Pradeep Kumar
- Nucleic Acids Research Laboratory, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi 110007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Nguyen HT, Phung CD, Tran TH, Pham TT, Pham LM, Nguyen TT, Jeong JH, Choi HG, Ku SK, Yong CS, Kim JO. Manipulating immune system using nanoparticles for an effective cancer treatment: Combination of targeted therapy and checkpoint blockage miRNA. J Control Release 2020; 329:524-537. [PMID: 32971203 DOI: 10.1016/j.jconrel.2020.09.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 09/14/2020] [Accepted: 09/17/2020] [Indexed: 02/08/2023]
Abstract
Accumulating clinical data shows that less than half of patients are beneficial from PD-1/PD-L1 blockage therapy owing to the limited infiltration of effector immune cells into the tumor and abundant of the immunosuppressive factors in the tumor microenvironment. In this study, PD-L1 inhibition therapy and BRAF-targeted therapy, which showed clinical benefit, were combined in a CXCR4-targeted nanoparticle co-delivering dabrafenib (Dab), a BRAF inhibitor, and miR-200c which can down-regulate PD-L1 expression. The cationic PCL-PEI core containing Dab- and miR-200c- were coated with poly-L-glutamic acid conjugated with LY2510924, a CXCR-4 antagonist peptide, (PGA-pep) to obtain miR@PCL-PEI/Dab@PGA-pep nanoformulation. The stimulus pH- and redox- reactive of PGA-pep was ascribed to exhibit an enhanced release of drug in the tumor microenvironment as well as improve the stability of miR-200c during the blood circulation. In addition, the presence of LY2510924 peptide would enhance the binding affinity of miR@PCL-PEI/Dab@PGA-pep NPs to cancer cells, leading to improved cellular uptake, cytotoxicity, and in vivo accumulation into tumor area. The in vivo results indicated that both, the immunogenic cell death (ICD) and the inhibition of PD-L1 expression, induced by treatment with CXCR-4 targeted nanoparticles, enables to improve the DC maturation in lymph node and CD8+ T cell activation in the spleen. More importantly, effector T cells were increasingly infiltrated into the tumor, whereas the immunosuppressive factors like PD-L1 expression and regulatory T cells were significantly reduced. They, all together, promote the immune responses against the tumor, indicating the therapeutic efficiency of the current strategy in cancer treatment.
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Affiliation(s)
- Hanh Thuy Nguyen
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Cao Dai Phung
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Tuan Hiep Tran
- Faculty of Pharmacy, Phenikaa University, Yen Nghia, Ha Dong, Hanoi 12116, Viet Nam; PHENIKAA Research and Technology Institute (PRATI), A&A Green Phoenix Group JSC, No.167 Hoang Ngan, Trung Hoa, Cau Giay, Hanoi 11313, Viet Nam
| | - Tung Thanh Pham
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Le Minh Pham
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Tiep Tien Nguyen
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, Republic of Korea
| | - Sae Kwang Ku
- College of Korean Medicine, Daegu Haany University, Gyeongsan 712-715, Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea.
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Hasan N, Cao J, Lee J, Hlaing SP, Oshi MA, Naeem M, Ki MH, Lee BL, Jung Y, Yoo JW. Bacteria-Targeted Clindamycin Loaded Polymeric Nanoparticles: Effect of Surface Charge on Nanoparticle Adhesion to MRSA, Antibacterial Activity, and Wound Healing. Pharmaceutics 2019; 11:E236. [PMID: 31096709 PMCID: PMC6571677 DOI: 10.3390/pharmaceutics11050236] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/02/2019] [Accepted: 05/14/2019] [Indexed: 12/30/2022] Open
Abstract
Adhesion of nanoparticles (NPs) to the bacterial cell wall by modifying their physicochemical properties can improve the antibacterial activity of antibiotic. In this study, we prepared positively charged clindamycin-loaded poly (lactic-co-glycolic acid)-polyethylenimine (PLGA-PEI) nanoparticles (Cly/PPNPs) and negatively charged clindamycin-loaded PLGA NPs (Cly/PNPs) and investigated the effect of NP adhesion to bacteria on the treatment of methicillin-resistant Staphylococcus aureus (MRSA)-infected wounds. The Cly/PPNPs and Cly/PNPs were characterized according to particle size, polydispersity index, surface charge, and drug loading. Both Cly/PPNPs and Cly/PNPs exhibited sustained drug release over 2 days. The Cly/PPNPs bind to the MRSA surface, thereby enhancing bactericidal efficacy against MRSA compared with the Cly/PNPs. Furthermore, compared with other groups, Cly/PPNPs significantly accelerated the healing and re-epithelialization of wounds in a mouse model of a MRSA-infected wounds. We also found that both NPs are harmless to healthy fibroblast cells. Therefore, our results suggest that the Cly/PPNPs developed in this study improve the efficacy of clindamycin for the treatment of MRSA-infected wounds.
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Affiliation(s)
- Nurhasni Hasan
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
| | - Jiafu Cao
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
| | - Juho Lee
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
| | - Shwe Phyu Hlaing
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
| | - Murtada A Oshi
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
| | - Muhammad Naeem
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
| | - Min-Hyo Ki
- Samjin Pharm. Co., LTD., Seongnam 13488, Korea.
| | - Bok Luel Lee
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
| | - Yunjin Jung
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
| | - Jin-Wook Yoo
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
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