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Nwabufo CK, Luc J, McGeer A, Hirota JA, Mubareka S, Doxey AC, Moraes TJ. COVID-19 severity gradient differentially dysregulates clinically relevant drug processing genes in nasopharyngeal swab samples. Br J Clin Pharmacol 2024. [PMID: 38817198 DOI: 10.1111/bcp.16124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/24/2024] [Accepted: 04/26/2024] [Indexed: 06/01/2024] Open
Abstract
AIM Understanding how COVID-19 impacts the expression of clinically relevant drug metabolizing enzymes and membrane transporters (DMETs) is vital for addressing potential safety and efficacy concerns related to systemic and peripheral drug concentrations. This study investigates the impact of COVID-19 severity on DMETs expression and the underlying mechanisms to inform the design of precise clinical dosing regimens for affected patients. METHODS Transcriptomics analysis of 102 DMETs, 10 inflammatory markers, and 12 xenosensing regulatory genes was conducted on nasopharyngeal swabs from 50 SARS-CoV-2 positive (17 outpatients, 16 non-ICU, and 17 ICU) and 13 SARS-CoV-2 negative individuals, clinically tested through qPCR, in the Greater Toronto area from October 2020 to October 2021. RESULTS We observed a significant differential gene expression for 42 DMETs, 6 inflammatory markers, and 9 xenosensing regulatory genes. COVID-19 severity was associated with the upregulation of AKR1C1, MGST1, and SULT1E1, and downregulation of ABCC10, CYP3A43, and SLC29A4 expressions. Altogether, SARS-CoV-2-positive patients showed an upregulation in CYP2C9, CYP2C19, AKR1C1, SULT1B1, SULT2B1, and SLCO4A1 and downregulation in FMO5, MGST3, ABCC5, and SLCO4C1 compared with SARS-CoV-2 negative individuals. These dysregulations were associated with significant changes in the expression of inflammatory and xenosensing regulatory genes driven by the disease. GSTM3, PPARA, and AKR1C1 are potential biomarkers of the observed DMETs dysregulation pattern in nasopharyngeal swabs of outpatients, non-ICU, and ICU patients, respectively. CONCLUSION The severity of COVID-19 is associated with the dysregulation of DMETs involved in processing commonly prescribed drugs, suggesting potential disease-drug interactions, especially for narrow therapeutic index drugs.
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Affiliation(s)
- Chukwunonso K Nwabufo
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
- Program in Translational Medicine, Hospital for Sick Children, Toronto, ON, Canada
- OneDrug Inc., Toronto, ON, Canada
| | - Jessica Luc
- Department of Biology and Waterloo Centre for Microbial Research, University of Waterloo, Waterloo, ON, Canada
| | - Allison McGeer
- Division of Infectious Diseases, University of Toronto, Toronto, Ontario, Canada
- Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Jeremy Alexander Hirota
- Department of Biology and Waterloo Centre for Microbial Research, University of Waterloo, Waterloo, ON, Canada
- Department of Medicine, McMaster University, Hamilton, ON, Canada
- Firestone Institute for Respiratory Health-Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON, Canada
- Research Institute of St. Joe's Hamilton, Hamilton, ON, Canada
- Division of Respiratory Medicine, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Samira Mubareka
- Sunnybrook Research Institute, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Andrew C Doxey
- Department of Biology and Waterloo Centre for Microbial Research, University of Waterloo, Waterloo, ON, Canada
| | - Theo J Moraes
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
- Program in Translational Medicine, Hospital for Sick Children, Toronto, ON, Canada
- Department of Pediatrics, Hospital for Sick Children, Toronto, ON, Canada
- Department of Pediatrics, University of Toronto, Toronto, ON, Canada
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2
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Saha T, Lyons N, Yue Yung DB, Quiñones-Mateu ME, Pletzer D, Das SC. Repurposing ebselen as an inhalable dry powder to treat respiratory tract infections. Eur J Pharm Biopharm 2024; 195:114170. [PMID: 38128743 DOI: 10.1016/j.ejpb.2023.12.010] [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: 09/08/2023] [Revised: 12/11/2023] [Accepted: 12/17/2023] [Indexed: 12/23/2023]
Abstract
Respiratory tract infections (RTIs) are one of the leading causes of death globally, lately exacerbated by the increasing prevalence of antimicrobial resistance. While antimicrobial resistance could be overcome by developing new antimicrobial agents, the use of a safe repurposed agent having potent antimicrobial activity against various RTIs can be an efficient and cost-effective alternative to overcome the long and complex process of developing and testing new drugs. Ebselen, a synthetic organoselenium drug originally developed to treat noise-inducing hearing problems, has shown promising antimicrobial activity in vitro against several respiratory pathogens including viruses (e.g., SARS-CoV-2, influenza A virus) and bacteria (e.g., Mycobacterium tuberculosis, Streptococcus pneumoniae, and Staphylococcus aureus). Inhaled drug delivery is considered a promising approach for treating RTIs, as it can ensure effective drug concentrations at a lower dose, thereby minimizing the side effects that are often encountered by using oral or injectable drugs. In this study, we developed inhalable ebselen dry powder formulations using a spray-drying technique. The amino acids leucine, methionine, and tryptophan were incorporated with ebselen to enhance the yield and aerosolization of the dry powders. The amino acid-containing ebselen dry powders showed a better yield (37-56.4 %) than the amino acid-free formulation (30.9 %). All dry powders were crystalline in nature. The mass median aerodynamic diameter (MMAD) was less than 5 µm for amino acids containing dry powders (3-4 µm) and slightly higher (5.4 µm) for amino acid free dry powder indicating their suitability for inhalation. The aerosol performance was higher when amino acids were used, and the leucine-containing ebselen dry powder showed the highest emitted dose (84 %) and fine particle fraction (68 %). All amino acid formulations had similar cytotoxicity as raw ebselen, tested in respiratory cell line (A549 cells), with half-maximal inhibitory concentrations (IC50) between 100 and 250 μg/mL. Raw ebselen and amino acid-containing dry powders showed similar potent antibacterial activity against the Gram-positive bacteria S. aureus and S. pneumoniae with minimum inhibitory concentrations of 0.31 μg/mL and 0.16 μg/mL, respectively. On the other hand, raw ebselen and the formulations showed limited antimicrobial activity against the Gram-negative pathogens Pseudomonas aeruginosa and Klebsiella pneumoniae. In summary, in this study we were able to develop amino-acid-containing inhalable dry powders of ebselen that could be used against different respiratory pathogens, especially Gram-positive bacteria, which could ensure more drug deposition in the respiratory tract, including the lungs. DPIs are generally used to treat lung (lower respiratory tract) diseases. However, DPIs can also be used to treat both upper and lower RTIs. The deposition of the dry powder in the respiratory tract is dependent on its physicochemical properties and this properties can be modulated to target the intended site of infection (upper and/or lower respiratory tract). Further studies will allow the development of similar formulations of individual and/or combination of antimicrobials that could be used to inhibit a number of respiratory pathogens.
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Affiliation(s)
- Tushar Saha
- School of Pharmacy, University of Otago, Dunedin, New Zealand
| | - Nikita Lyons
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Deborah Bow Yue Yung
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Miguel E Quiñones-Mateu
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Daniel Pletzer
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Shyamal C Das
- School of Pharmacy, University of Otago, Dunedin, New Zealand.
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3
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Canto Mangana J, Schilder KA, Bretones‐Pedrinaci JI, Blesa ARM, de Medina FS, Martínez‐Augustin O, Daddaoua A. A perspective current and past modes of inhalation therapy. Microb Biotechnol 2024; 17:e14419. [PMID: 38387963 PMCID: PMC10883785 DOI: 10.1111/1751-7915.14419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 01/21/2024] [Indexed: 02/24/2024] Open
Abstract
Inhalation is the preferred route of delivery for anti-asthma and chronic obstructive pulmonary disease (COPD) drugs. The use of this route has demonstrated efficacy in these and other conditions, it offers rapid onset of action, and is associated with minimal systemic exposure, thereby reducing the risk of adverse effects. Therefore, the current brief covers an interesting collection of inhaler action modes, shedding light on their molecular mechanisms and clinical applications for anti-asthma, COPD and antibacterial inhalation therapy. Hence, not only enriches our understanding of inhalation therapy molecular intricacies but also provides a comprehensive overview of the evolving landscape in clinical and antibacterial inhalation therapy. In doing so, it underscores the pivotal role of microbiology and biotechnology in advancing therapeutic approaches that harness the power of inhalation.
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Affiliation(s)
- José Canto Mangana
- Department of Biochemistry and Molecular Biology II, Pharmacy SchoolUniversity of GranadaGranadaSpain
- Pharmacy ServicesA.S. Hospital de Poniente de AlmeríaAlmeríaSpain
| | - Kelsey Aguirre Schilder
- Department of Biochemistry and Molecular Biology II, Pharmacy SchoolUniversity of GranadaGranadaSpain
| | | | - Ana Rosa Márquez Blesa
- Department of Biochemistry and Molecular Biology II, Pharmacy SchoolUniversity of GranadaGranadaSpain
| | - Fermín Sánchez de Medina
- Department of Pharmacology, School of PharmacyUniversity of GranadaGranadaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd)MadridSpain
- Instituto de Investigación Biosanitaria (IBS)GranadaSpain
| | - Olga Martínez‐Augustin
- Department of Biochemistry and Molecular Biology II, Pharmacy SchoolUniversity of GranadaGranadaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd)MadridSpain
- Instituto de Investigación Biosanitaria (IBS)GranadaSpain
- Institute of Nutrition and Food Technology ‘José Mataix’, Center of Biomedical ResearchUniversity of GranadaGranadaSpain
| | - Abdelali Daddaoua
- Department of Biochemistry and Molecular Biology II, Pharmacy SchoolUniversity of GranadaGranadaSpain
- Instituto de Investigación Biosanitaria (IBS)GranadaSpain
- Institute of Nutrition and Food Technology ‘José Mataix’, Center of Biomedical ResearchUniversity of GranadaGranadaSpain
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Peng S, Wang W, Zhang R, Wu C, Pan X, Huang Z. Nano-Formulations for Pulmonary Delivery: Past, Present, and Future Perspectives. Pharmaceutics 2024; 16:161. [PMID: 38399222 PMCID: PMC10893528 DOI: 10.3390/pharmaceutics16020161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 02/25/2024] Open
Abstract
With the development of nanotechnology and confronting the problems of traditional pharmaceutical formulations in treating lung diseases, inhalable nano-formulations have attracted interest. Inhalable nano-formulations for treating lung diseases allow for precise pulmonary drug delivery, overcoming physiological barriers, improving aerosol lung deposition rates, and increasing drug bioavailability. They are expected to solve the difficulties faced in treating lung diseases. However, limited success has been recorded in the industrialization translation of inhalable nano-formulations. Only one relevant product has been approved by the FDA to date, suggesting that there are still many issues to be resolved in the clinical application of inhalable nano-formulations. These systems are characterized by a dependence on inhalation devices, while the adaptability of device formulation is still inconclusive, which is the most important issue impeding translational research. In this review, we categorized various inhalable nano-formulations, summarized the advantages of inhalable nano-formulations over conventional inhalation formulations, and listed the inhalable nano-formulations undergoing clinical studies. We focused on the influence of inhalation devices on nano-formulations and analyzed their adaptability. After extensive analysis of the drug delivery mechanisms, technical processes, and limitations of different inhalation devices, we concluded that vibrating mesh nebulizers might be most suitable for delivering inhalable nano-formulations, and related examples were introduced to validate our view. Finally, we presented the challenges and outlook for future development. We anticipate providing an informative reference for the field.
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Affiliation(s)
- Siyuan Peng
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Wenhao Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Rui Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Chuanbin Wu
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Xin Pan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Zhengwei Huang
- College of Pharmacy, Jinan University, Guangzhou 510632, China
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5
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de Oliveira DF. In silico identification of five binding sites on the SARS-CoV-2 spike protein and selection of seven ligands for such sites. J Biomol Struct Dyn 2023:1-19. [PMID: 37921757 DOI: 10.1080/07391102.2023.2278077] [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: 01/27/2023] [Accepted: 10/26/2023] [Indexed: 11/04/2023]
Abstract
To contribute to the development of products capable of complexing with the SARS-CoV-2 spike protein, and thus preventing the virus from entering the host cell, this work aimed at discovering binding sites in the whole protein structure, as well as selecting substances capable of binding efficiently to such sites. Initially, the three-dimensional structure of the protein, with all receptor binding domains in the closed state, underwent blind docking with 38 substances potentially capable of binding to this protein according to the literature. This allowed the identification of five binding sites. Then, those substances with more affinities for these sites underwent pharmacophoric search in the ZINC15 database. The 14,329 substances selected from ZINC15 were subjected to docking to the five selected sites of the spike protein. The ligands with more affinities for the protein sites, as well as the selected sites themselves, were used in the de novo design of new ligands that were also docked to the binding sites of the protein. The best ligands, regardless of their origins, were used to form complexes with the spike protein, which were subsequently used in molecular dynamics simulations and calculations of ligands affinities to the protein through the molecular mechanics/Poisson-Boltzmann surface area method (MMPBSA). Seven substances with good affinities to the spike protein (-12.9 to -20.6 kcal/mol), satisfactory druggability (Bioavailability score: 0.17 to 0.55), and low acute toxicity to mice (LD50: 751 to 1421 mg/kg) were selected as potentially useful for the future development of new products to manage COVID-19 infections.Communicated by Ramaswamy H. Sarma.
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6
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Zacaron TM, Silva MLSE, Costa MP, Silva DME, Silva AC, Apolônio ACM, Fabri RL, Pittella F, Rocha HVA, Tavares GD. Advancements in Chitosan-Based Nanoparticles for Pulmonary Drug Delivery. Polymers (Basel) 2023; 15:3849. [PMID: 37765701 PMCID: PMC10536410 DOI: 10.3390/polym15183849] [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: 08/11/2023] [Revised: 09/11/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
The evolution of respiratory diseases represents a considerable public health challenge, as they are among the leading causes of death worldwide. In this sense, in addition to the high prevalence of diseases such as asthma, chronic obstructive pulmonary disease, pneumonia, cystic fibrosis, and lung cancer, emerging respiratory diseases, particularly those caused by members of the coronavirus family, have contributed to a significant number of deaths on a global scale over the last two decades. Therefore, several studies have been conducted to optimize the efficacy of treatments against these diseases, focusing on pulmonary drug delivery using nanomedicine. Thus, the development of nanocarriers has emerged as a promising alternative to overcome the limitations of conventional therapy, by increasing drug bioavailability at the target site and reducing unwanted side effects. In this context, nanoparticles composed of chitosan (CS) show advantages over other nanocarriers because chitosan possesses intrinsic biological properties, such as anti-inflammatory, antimicrobial, and mucoadhesive capacity. Moreover, CS nanoparticles have the potential to enhance drug stability, prolong the duration of action, improve drug targeting, control drug release, optimize dissolution of poorly soluble drugs, and increase cell membrane permeability of hydrophobic drugs. These properties could optimize the performance of the drug after its pulmonary administration. Therefore, this review aims to discuss the potential of chitosan nanoparticles for pulmonary drug delivery, highlighting how their biological properties can improve the treatment of pulmonary diseases, including their synergistic action with the encapsulated drug.
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Affiliation(s)
- Thiago Medeiros Zacaron
- Postgraduate Program in Pharmaceutical Science, Federal University of Juiz de Fora, Juiz de Fora 36036-900, Minas Gerais, Brazil; (T.M.Z.); (M.P.C.); (D.M.e.S.); (A.C.S.); (R.L.F.); (F.P.)
| | | | - Mirsiane Pascoal Costa
- Postgraduate Program in Pharmaceutical Science, Federal University of Juiz de Fora, Juiz de Fora 36036-900, Minas Gerais, Brazil; (T.M.Z.); (M.P.C.); (D.M.e.S.); (A.C.S.); (R.L.F.); (F.P.)
| | - Dominique Mesquita e Silva
- Postgraduate Program in Pharmaceutical Science, Federal University of Juiz de Fora, Juiz de Fora 36036-900, Minas Gerais, Brazil; (T.M.Z.); (M.P.C.); (D.M.e.S.); (A.C.S.); (R.L.F.); (F.P.)
| | - Allana Carvalho Silva
- Postgraduate Program in Pharmaceutical Science, Federal University of Juiz de Fora, Juiz de Fora 36036-900, Minas Gerais, Brazil; (T.M.Z.); (M.P.C.); (D.M.e.S.); (A.C.S.); (R.L.F.); (F.P.)
| | - Ana Carolina Morais Apolônio
- Postgraduate Program in Dentistry, Federal University of Juiz de Fora, Juiz de Fora 36036-900, Minas Gerais, Brazil;
| | - Rodrigo Luiz Fabri
- Postgraduate Program in Pharmaceutical Science, Federal University of Juiz de Fora, Juiz de Fora 36036-900, Minas Gerais, Brazil; (T.M.Z.); (M.P.C.); (D.M.e.S.); (A.C.S.); (R.L.F.); (F.P.)
| | - Frederico Pittella
- Postgraduate Program in Pharmaceutical Science, Federal University of Juiz de Fora, Juiz de Fora 36036-900, Minas Gerais, Brazil; (T.M.Z.); (M.P.C.); (D.M.e.S.); (A.C.S.); (R.L.F.); (F.P.)
- Faculty of Pharmacy, Federal University of Juiz de Fora, Juiz de Fora 36036-900, Minas Gerais, Brazil;
| | - Helvécio Vinícius Antunes Rocha
- Laboratory of Micro and Nanotechnology—Farmanguinhos, FIOCRUZ—Fundação Oswaldo Cruz, Rio de Janeiro 21040-361, Rio de Janeiro, Brazil;
| | - Guilherme Diniz Tavares
- Postgraduate Program in Pharmaceutical Science, Federal University of Juiz de Fora, Juiz de Fora 36036-900, Minas Gerais, Brazil; (T.M.Z.); (M.P.C.); (D.M.e.S.); (A.C.S.); (R.L.F.); (F.P.)
- Faculty of Pharmacy, Federal University of Juiz de Fora, Juiz de Fora 36036-900, Minas Gerais, Brazil;
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7
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Urano E, Itoh Y, Suzuki T, Sasaki T, Kishikawa JI, Akamatsu K, Higuchi Y, Sakai Y, Okamura T, Mitoma S, Sugihara F, Takada A, Kimura M, Nakao S, Hirose M, Sasaki T, Koketsu R, Tsuji S, Yanagida S, Shioda T, Hara E, Matoba S, Matsuura Y, Kanda Y, Arase H, Okada M, Takagi J, Kato T, Hoshino A, Yasutomi Y, Saito A, Okamoto T. An inhaled ACE2 decoy confers protection against SARS-CoV-2 infection in preclinical models. Sci Transl Med 2023; 15:eadi2623. [PMID: 37647387 DOI: 10.1126/scitranslmed.adi2623] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 07/27/2023] [Indexed: 09/01/2023]
Abstract
The Omicron variant continuously evolves under the humoral immune pressure exerted by vaccination and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, and the resulting Omicron subvariants display further immune evasion and antibody escape. An engineered angiotensin-converting enzyme 2 (ACE2) decoy composed of high-affinity ACE2 and an IgG1 Fc domain could offer an alternative modality to neutralize SARS-CoV-2. We previously reported its broad spectrum and therapeutic potential in rodent models. Here, we demonstrate that the engineered ACE2 decoy retains neutralization activity against Omicron subvariants, including the currently emerging XBB and BQ.1 strains, which completely evade antibodies currently in clinical use. SARS-CoV-2, under the suboptimal concentration of neutralizing drugs, generated SARS-CoV-2 mutants escaping wild-type ACE2 decoy and monoclonal antibodies, whereas no escape mutant emerged against the engineered ACE2 decoy. Furthermore, inhalation of aerosolized decoys improved the outcomes of rodents infected with SARS-CoV-2 at a 20-fold lower dose than that of intravenous administration. Last, the engineered ACE2 decoy exhibited therapeutic efficacy for cynomolgus macaques infected with SARS-CoV-2. These results indicate that this engineered ACE2 decoy represents a promising therapeutic strategy to overcome immune-evading SARS-CoV-2 variants and that liquid aerosol inhalation could be considered as a noninvasive approach to enhance the efficacy of COVID-19 treatments.
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Affiliation(s)
- Emiko Urano
- Laboratory of Immunoregulation and Vaccine Research, Tsukuba Primate Research Center, National Institutes of Biomedical Innovation, Health and Nutrition, Tsukuba, 305-0843, Japan
| | - Yumi Itoh
- Institute for Advanced Co-Creation Studies, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
- Department of Microbiology, Juntendo University School of Medicine, Tokyo, 113-8421, Japan
| | - Tatsuya Suzuki
- Institute for Advanced Co-Creation Studies, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
- Department of Microbiology, Juntendo University School of Medicine, Tokyo, 113-8421, Japan
| | - Takanori Sasaki
- Collaborative Research Center for Okayama Medical Innovation Center, Dentistry, and Pharmaceutical Sciences, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, 700-0082, Japan
| | - Jun-Ichi Kishikawa
- Laboratory of CryoEM Structural Biology, Institute for Protein Research, Osaka University, Osaka, 565-0871, Japan
| | - Kanako Akamatsu
- Department of Oncogene, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Yusuke Higuchi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Yusuke Sakai
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, 208-0011, Japan
| | - Tomotaka Okamura
- Laboratory of Immunoregulation and Vaccine Research, Tsukuba Primate Research Center, National Institutes of Biomedical Innovation, Health and Nutrition, Tsukuba, 305-0843, Japan
| | - Shuya Mitoma
- Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki, 889-2155, Japan
| | - Fuminori Sugihara
- Central Instrumentation Laboratory, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Akira Takada
- Institute for Advanced Co-Creation Studies, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Mari Kimura
- Institute for Advanced Co-Creation Studies, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Shuto Nakao
- Institute for Advanced Co-Creation Studies, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Mika Hirose
- Laboratory of CryoEM Structural Biology, Institute for Protein Research, Osaka University, Osaka, 565-0871, Japan
| | - Tadahiro Sasaki
- Department of Viral Infection, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Ritsuko Koketsu
- Department of Viral Infection, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Shunya Tsuji
- Department of Molecular Microbiology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Shota Yanagida
- Division of Pharmacology, National Institute of Health Sciences, Kanagawa, 565-0871, Japan
| | - Tatsuo Shioda
- Department of Viral Infection, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
- Center for Infectious Disease Education and Research, Osaka University, Osaka, 565-0871, Japan
| | - Eiji Hara
- Department of Molecular Microbiology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
- Center for Infectious Disease Education and Research, Osaka University, Osaka, 565-0871, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Yoshiharu Matsuura
- Center for Infectious Disease Education and Research, Osaka University, Osaka, 565-0871, Japan
| | - Yasunari Kanda
- Division of Pharmacology, National Institute of Health Sciences, Kanagawa, 565-0871, Japan
| | - Hisashi Arase
- Center for Infectious Disease Education and Research, Osaka University, Osaka, 565-0871, Japan
- Department of Immunochemistry, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
- Center for Advanced Modalities and Drug Delivery System, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Masato Okada
- Department of Oncogene, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
- Center for Infectious Disease Education and Research, Osaka University, Osaka, 565-0871, Japan
- Center for Advanced Modalities and Drug Delivery System, Osaka University, Suita, Osaka, 565-0871, Japan
- Laboratory of Oncogene Research, World Premier International Immunology Frontier Research Centre, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Junichi Takagi
- Center for Infectious Disease Education and Research, Osaka University, Osaka, 565-0871, Japan
- Laboratory of Protein Synthesis and Expression, Institute for Protein Research, Osaka University, Osaka, 565-0871, Japan
| | - Takayuki Kato
- Laboratory of CryoEM Structural Biology, Institute for Protein Research, Osaka University, Osaka, 565-0871, Japan
- Center for Infectious Disease Education and Research, Osaka University, Osaka, 565-0871, Japan
- Center for Advanced Modalities and Drug Delivery System, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Atsushi Hoshino
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Yasuhiro Yasutomi
- Laboratory of Immunoregulation and Vaccine Research, Tsukuba Primate Research Center, National Institutes of Biomedical Innovation, Health and Nutrition, Tsukuba, 305-0843, Japan
- Department of Molecular and Experimental Medicine, Mie University Graduate School of Medicine, Mie, 514-8507, Japan
| | - Akatsuki Saito
- Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki, 889-2155, Japan
- Center for Animal Disease Control, University of Miyazaki, Miyazaki, 889-2155, Japan
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki, 889-2155, Japan
| | - Toru Okamoto
- Institute for Advanced Co-Creation Studies, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
- Department of Microbiology, Juntendo University School of Medicine, Tokyo, 113-8421, Japan
- Center for Infectious Disease Education and Research, Osaka University, Osaka, 565-0871, Japan
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8
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Saha T, Sinha S, Harfoot R, Quiñones-Mateu ME, Das SC. Spray-Dried Inhalable Microparticles Combining Remdesivir and Ebselen against SARS-CoV-2 Infection. Pharmaceutics 2023; 15:2229. [PMID: 37765198 PMCID: PMC10535576 DOI: 10.3390/pharmaceutics15092229] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023] Open
Abstract
There is a continuous effort to develop efficient treatments for coronavirus disease 2019 (COVID-19) and other viral respiratory diseases. Among the different strategies, inhaled treatment is considered one of the most logical and efficient approaches to treating COVID-19, as the causative "SARS-CoV-2 virus RNA" predominantly infects the respiratory tract. COVID-19 treatments initially relied on repurposed drugs, with a few additional strategies developed during the last two years, and all of them are based on monotherapy. However, drug combinations have been found to be more effective than monotherapy in other viral diseases such as HIV, influenza, and hepatitis C virus. In the case of SARS-CoV-2 infection, in vitro studies have shown synergistic antiviral activity combining remdesivir with ebselen, an organoselenium compound. Therefore, these drug combinations could ensure better therapeutic outcomes than the individual agents. In this study, we developed a dry powder formulation containing remdesivir and ebselen using a spray-drying technique and used L-leucine as an aerosolization enhancer. The prepared dry powders were spherical and crystalline, with a mean particle size between 1 and 3 µm, indicating their suitability for inhalation. The emitted dose (ED) and fine particle fraction (FPF) of remdesivir- and ebselen-containing dry powders were ~80% and ~57% when prepared without L-leucine. The ED as well as the FPF significantly increased with values of >86% and >67%, respectively, when L-leucine was incorporated. More importantly, the single and combinational dry powder of remdesivir and ebselen showed minimal cytotoxicity (CC50 > 100 μM) in Calu-3 cells, retaining their anti-SARS-CoV-2 properties (EC50 2.77 to 18.64 μM). In summary, we developed an inhalable dry powder combination of remdesivir and ebselen using a spray-drying technique. The spray-dried inhalable microparticles retained their limited cytotoxicity and specific antiviral properties. Future in vivo studies are needed to verify the potential use of these remdesivir/ebselen combinational spray-dried inhalable microparticles to block the SARS-CoV-2 replication in the respiratory tract.
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Affiliation(s)
- Tushar Saha
- School of Pharmacy, University of Otago, Dunedin 9054, New Zealand;
| | - Shubhra Sinha
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, Dunedin 9054, New Zealand; (S.S.); (R.H.); (M.E.Q.-M.)
| | - Rhodri Harfoot
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, Dunedin 9054, New Zealand; (S.S.); (R.H.); (M.E.Q.-M.)
| | - Miguel E. Quiñones-Mateu
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, Dunedin 9054, New Zealand; (S.S.); (R.H.); (M.E.Q.-M.)
| | - Shyamal C. Das
- School of Pharmacy, University of Otago, Dunedin 9054, New Zealand;
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Alsmadi MM, Jaradat MM, Obaidat RM, Alnaief M, Tayyem R, Idkaidek N. The In Vitro, In Vivo, and PBPK Evaluation of a Novel Lung-Targeted Cardiac-Safe Hydroxychloroquine Inhalation Aerogel. AAPS PharmSciTech 2023; 24:172. [PMID: 37566183 DOI: 10.1208/s12249-023-02627-3] [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: 04/20/2023] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 08/12/2023] Open
Abstract
Hydroxychloroquine (HCQ) was repurposed for COVID-19 treatment. Subtherapeutic HCQ lung levels and cardiac toxicity of oral HCQ were overcome by intratracheal (IT) administration of lower HCQ doses. The crosslinker-free supercritical fluid technology (SFT) produces aerogels and impregnates them with drugs in their amorphous form with efficient controlled release. Mechanistic physiologically based pharmacokinetic (PBPK) modeling can predict the lung's epithelial lining fluid (ELF) drug levels. This study aimed to develop a novel HCQ SFT formulation for IT administration to achieve maximal ELF levels and minimal cardiac toxicity. HCQ SFT formulation was prepared and evaluated for physicochemical, in vitro release, pharmacokinetics, and cardiac toxicity. Finally, the rat HCQ ELF concentrations were predicted using PBPK modeling. HCQ was amorphous after loading into the chitosan-alginate nanoporous microparticles (22.7±7.6 μm). The formulation showed a zero-order release, with only 40% released over 30 min compared to 94% for raw HCQ. The formulation had a tapped density of 0.28 g/cm3 and a loading efficiency of 35.3±1.3%. The IT administration of SFT HCQ at 1 mg/kg resulted in 23.7-fold higher bioavailability, fourfold longer MRT, and eightfold faster absorption but lower CK-MB and LDH levels than oral raw HCQ at 4 mg/kg. The PBPK model predicted 6 h of therapeutic ELF levels for IT SFT HCQ and a 100-fold higher ELF-to-heart concentration ratio than oral HCQ. Our findings support the feasibility of lung-targeted and more effective SFT HCQ IT administration for COVID-19 compared to oral HCQ with less cardiac toxicity. Graphical abstract.
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Affiliation(s)
- Mo'tasem M Alsmadi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Jordan University of Science and Technology, P.O. Box 3030, Irbid, 22110, Jordan.
- Nanotechnology Institute, Jordan University of Science and Technology, Irbid, Jordan.
| | - Mays M Jaradat
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Jordan University of Science and Technology, P.O. Box 3030, Irbid, 22110, Jordan
| | - Rana M Obaidat
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, The University of Jordan, Amman, Jordan
| | - Mohammad Alnaief
- Department of Pharmaceutical and Chemical Engineering, Faculty of Applied Medical Sciences, German Jordanian University, Amman, Jordan
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10
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Gao J, Cao C, Shi M, Hong S, Guo S, Li J, Liang T, Song P, Xu R, Li N. Kaempferol inhibits SARS-CoV-2 invasion by impairing heptad repeats-mediated viral fusion. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 118:154942. [PMID: 37421767 PMCID: PMC10289257 DOI: 10.1016/j.phymed.2023.154942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 06/17/2023] [Accepted: 06/22/2023] [Indexed: 07/10/2023]
Abstract
BACKGROUND The continuous evolution of SARS-CoV-2 has underscored the development of broad-spectrum prophylaxis. Antivirals targeting the membrane fusion process represent promising paradigms. Kaempferol (Kae), an ubiquitous plant flavonol, has been shown efficacy against various enveloped viruses. However, its potential in anti-SARS-CoV-2 invasion remains obscure. PURPOSE To evaluate capabilities and mechanisms of Kae in preventing SARS-CoV-2 invasion. METHODS To avoid interference of viral replication, virus-like particles (VLPs) constructed with luciferase reporter were applied. To investigate the antiviral potency of Kae, human induced pluripotent stem cells (hiPSC)-derived alveolar epithelial cells type II (AECII) and human ACE2 (hACE2) transgenic mice were utilized as in vitro and in vivo models, respectively. Using dual split protein (DSP) assays, inhibitory activities of Kae in viral fusion were determined in Alpha, Delta and Omicron variants of SARS-CoV-2, as well as in SARS-CoV and MERS-CoV. To further reveal molecular determinants of Kae in restricting viral fusion, synthetic peptides corresponding to the conserved heptad repeat (HR) 1 and 2, involved in viral fusion, and the mutant form of HR2 were explored by circular dichroism and native polyacrylamide gel electrophoresis. RESULTS Kae inhibited SARS-CoV-2 invasion both in vitro and in vivo, which was mainly attributed to its suppressive effects on viral fusion, but not endocytosis, two pathways that mediate viral invasion. In accordance with the proposed model of anti-fusion prophylaxis, Kae functioned as a pan-inhibitor of viral fusion, including three emerged highly pathogenic coronaviruses, and the currently circulating Omicron BQ.1.1 and XBB.1 variants of SARS-CoV-2. Consistent with the typical target of viral fusion inhibitors, Kae interacted with HR regions of SARS-CoV-2 S2 subunits. Distinct from previous inhibitory fusion peptides which prevent the formation of six-helix bundle (6-HB) by competitively interacting with HRs, Kae deformed HR1 and directly reacted with lysine residues within HR2 region, the latter of which was considered critical for the preservation of stabilized S2 during SARS-CoV-2 invasion. CONCLUSIONS Kae prevents SARS-CoV-2 infection by blocking membrane fusion and possesses a broad-spectrum anti-fusion ability. These findings provide valuable insights into potential benefits of Kae-containing botanical products as a complementary prophylaxis, especially during the waves of breakthrough infections and re-infections.
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Affiliation(s)
- Junwei Gao
- Department of Biomedical Engineering and Technology, Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Can Cao
- Department of Biomedical Engineering and Technology, Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Mingfei Shi
- Department of Biomedical Engineering and Technology, Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Shihao Hong
- Department of Biomedical Engineering and Technology, Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Shijie Guo
- Department of Biomedical Engineering and Technology, Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jing Li
- Department of Nephropathy, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Tengxiao Liang
- Department of Emergency, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Ping Song
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China..
| | - Ruodan Xu
- Department of Biomedical Engineering and Technology, Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China..
| | - Ning Li
- Department of Biomedical Engineering and Technology, Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China..
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11
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Žigrayová D, Mikušová V, Mikuš P. Advances in Antiviral Delivery Systems and Chitosan-Based Polymeric and Nanoparticulate Antivirals and Antiviral Carriers. Viruses 2023; 15:v15030647. [PMID: 36992356 PMCID: PMC10054433 DOI: 10.3390/v15030647] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/24/2023] [Accepted: 02/25/2023] [Indexed: 03/06/2023] Open
Abstract
Current antiviral therapy research is focused on developing dosage forms that enable highly effective drug delivery, providing a selective effect in the organism, lower risk of adverse effects, a lower dose of active pharmaceutical ingredients, and minimal toxicity. In this article, antiviral drugs and the mechanisms of their action are summarized at the beginning as a prerequisite background to develop relevant drug delivery/carrier systems for them, classified and briefly discussed subsequently. Many of the recent studies aim at different types of synthetic, semisynthetic, and natural polymers serving as a favorable matrix for the antiviral drug carrier. Besides a wider view of different antiviral delivery systems, this review focuses on advances in antiviral drug delivery systems based on chitosan (CS) and derivatized CS carriers. CS and its derivatives are evaluated concerning methods of their preparation, their basic characteristics and properties, approaches to the incorporation of an antiviral drug in the CS polymer as well as CS nanoparticulate systems, and their recent biomedical applications in the context of actual antiviral therapy. The degree of development (i.e., research study, in vitro/ex vivo/in vivo preclinical testing), as well as benefits and limitations of CS polymer and CS nanoparticulate drug delivery systems, are reported for particular viral diseases and corresponding antivirotics.
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Affiliation(s)
- Dominika Žigrayová
- Department of Galenic Pharmacy, Faculty of Pharmacy, Comenius University Bratislava, Odbojárov 10, 83232 Bratislava, Slovakia
| | - Veronika Mikušová
- Department of Galenic Pharmacy, Faculty of Pharmacy, Comenius University Bratislava, Odbojárov 10, 83232 Bratislava, Slovakia
| | - Peter Mikuš
- Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy, Comenius University Bratislava, Odbojárov 10, 83232 Bratislava, Slovakia
- Toxicological and Antidoping Center, Faculty of Pharmacy, Comenius University Bratislava, Odbojárov 10, 83232 Bratislava, Slovakia
- Correspondence:
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12
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Chow MYT, Pan HW, Seow HC, Lam JKW. Inhalable neutralizing antibodies - promising approach to combating respiratory viral infections. Trends Pharmacol Sci 2023; 44:85-97. [PMID: 36566131 DOI: 10.1016/j.tips.2022.11.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 11/21/2022] [Accepted: 11/21/2022] [Indexed: 12/24/2022]
Abstract
Monoclonal antibodies represent an exciting class of therapeutics against respiratory viral infections. Notwithstanding their specificity and affinity, the conventional parenteral administration is suboptimal in delivering antibodies for neutralizing activity in the airways due to the poor distribution of macromolecules to the respiratory tract. Inhaled therapy is a promising approach to overcome this hurdle in a noninvasive manner, while advances in antibody engineering have led to the development of unique antibody formats which exhibit properties desirable for inhalation. In this Opinion, we examine the major challenges surrounding the development of inhaled antibodies, identify knowledge gaps that need to be addressed and provide strategies from a drug delivery perspective to enhance the efficacy and safety of neutralizing antibodies against respiratory viral infections.
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Affiliation(s)
- Michael Y T Chow
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong SAR, China
| | - Harry W Pan
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong SAR, China
| | - Han Cong Seow
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong SAR, China
| | - Jenny K W Lam
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong SAR, China; School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK.
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13
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Recent updates on liposomal formulations for detection, prevention and treatment of coronavirus disease (COVID-19). Int J Pharm 2023; 630:122421. [PMID: 36410670 PMCID: PMC9674400 DOI: 10.1016/j.ijpharm.2022.122421] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 11/12/2022] [Accepted: 11/17/2022] [Indexed: 11/20/2022]
Abstract
The unprecedented outbreak of severe acute respiratory syndrome-2 (SARS-CoV-2) worldwide has rendered it one of the most notorious pandemics ever documented in human history. As of November 2022, nearly 626 million cases of infection and over 6.6 million deaths have been reported globally. The scientific community has made significant progress in therapeutics and prevention for the management of coronavirus disease (COVID-19), including the development of vaccines and antiviral agents such as monoclonal antibodies and antiviral drugs. Although many advancements and a plethora of positive results have been obtained and global restrictions are being uplifted, obstacles in efficiently delivering these therapies, such as their rapid clearance, suboptimal biodistribution, and toxicity to organs, have yet to be addressed. To address these drawbacks, researchers have attempted applying nanotechnology-based formulations. Here, we summarized the recent data about COVID-19, its emergence, pathophysiology and life cycle, diagnosis, and currently-available medications. Subsequently, we discussed the progress in lipid nanocarriers, such as liposomes in infection detection and control. This review provides critical insights into the design of the latest liposomal-based formulations for tackling the barriers to detecting, preventing, and treating SARS-CoV-2.
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14
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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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