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Patra S, Pareek D, Gupta PS, Wasnik K, Singh G, Yadav DD, Mastai Y, Paik P. Progress in Treatment and Diagnostics of Infectious Disease with Polymers. ACS Infect Dis 2024; 10:287-316. [PMID: 38237146 DOI: 10.1021/acsinfecdis.3c00528] [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] [Indexed: 02/10/2024]
Abstract
In this era of advanced technology and innovation, infectious diseases still cause significant morbidity and mortality, which need to be addressed. Despite overwhelming success in the development of vaccines, transmittable diseases such as tuberculosis and AIDS remain unprotected, and the treatment is challenging due to frequent mutations of the pathogens. Formulations of new or existing drugs with polymeric materials have been explored as a promising new approach. Variations in shape, size, surface charge, internal morphology, and functionalization position polymer particles as a revolutionary material in healthcare. Here, an overview is provided of major diseases along with statistics on infection and death rates, focusing on polymer-based treatments and modes of action. Key issues are discussed in this review pertaining to current challenges and future perspectives.
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Affiliation(s)
- Sukanya Patra
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Divya Pareek
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Prem Shankar Gupta
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Kirti Wasnik
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Gurmeet Singh
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Desh Deepak Yadav
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Yitzhak Mastai
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Pradip Paik
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
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Pioch T, Fischer T, Schneider M. Aspherical, Nano-Structured Drug Delivery System with Tunable Release and Clearance for Pulmonary Applications. Pharmaceutics 2024; 16:232. [PMID: 38399290 PMCID: PMC10891959 DOI: 10.3390/pharmaceutics16020232] [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: 12/01/2023] [Revised: 01/21/2024] [Accepted: 02/01/2024] [Indexed: 02/25/2024] Open
Abstract
Addressing the challenge of efficient drug delivery to the lungs, a nano-structured, microparticulate carrier system with defined and customizable dimensions has been developed. Utilizing a template-assisted approach and capillary forces, particles were rapidly loaded and stabilized. The system employs a biocompatible alginate gel as a stabilizing matrix, facilitating the breakdown of the carrier in body fluids with the subsequent release of its nano-load, while also mitigating long-term accumulation in the lung. Different gel strengths and stabilizing steps were applied, allowing us to tune the release kinetics, as evaluated by a quantitative method based on a flow-imaging system. The micro-cylinders demonstrated superior aerodynamic properties in Next Generation Impactor (NGI) experiments, such as a smaller median aerodynamic diameter (MMAD), while yielding a higher fine particle fraction (FPF) than spherical particles similar in critical dimensions. They exhibited negligible toxicity to a differentiated macrophage cell line (dTHP-1) for up to 24 h of incubation. The kinetics of the cellular uptake by dTHP-1 cells was assessed via fluorescence microscopy, revealing an uptake-rate dependence on the aspect ratio (AR = l/d); cylinders with high AR were phagocytosed more slowly than shorter rods and comparable spherical particles. This indicates that this novel drug delivery system can modulate macrophage uptake and clearance by adjusting its geometric parameters while maintaining optimal aerodynamic properties and featuring a biodegradable stabilizing matrix.
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Affiliation(s)
| | | | - Marc Schneider
- Department of Pharmacy, Biopharmaceutics and Pharmaceutical Technology, Saarland University, 66123 Saarbrücken, Germany; (T.P.); (T.F.)
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Mohammadi F, Moradi A, Tavakoli F, Rahmati S, Giti R, Ramezani V. Development and characterization of a copolymeric micelle containing soluble and insoluble model drugs. PLoS One 2023; 18:e0286251. [PMID: 37228096 DOI: 10.1371/journal.pone.0286251] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 05/12/2023] [Indexed: 05/27/2023] Open
Abstract
OBJECTIVES Micelles are nano-sized particles with a core-shell structure that are made by natural or synthetic polymers or copolymers. The aim of this study was to develop and characterize a copolymeric micelle using two polymers loaded with hydrophilic and lipophilic drugs. METHODS Poly(ethylene glycol) and poly(ε-caprolactone) (PEG-PCL) were used to form a copolymeric micelle which was further loaded with either moxifloxacin or clarithromycin as hydrophilic and lipophilic drug samples, respectively. Characterization tests were done including fourier transform-infrared (FT-IR) spectroscopy, proton nuclear magnetic resonance (1H NMR) spectroscopy, encapsulation efficiency, particle size, zeta potential, polydispersity index, transmission electron microscopy, and in-vitro release test. RESULTS The construction of the copolymer was confirmed by the results of FT-IR and 1H NMR spectroscopy tests. The encapsulation efficiency test exhibited that loading was about 50% for twelve formulations. Particle size, zeta potential, polydispersity index, and transmission electron microscopy confirmed the formation of monodispersed, uniform, and nano-sized micelles with a few negative charges. The kinetic model of release was fitted to the Higuchi model. CONCLUSIONS Polymeric micelles consisting of PEG-PCL copolymer were loaded with adequate concentrations of hydrophilic (moxifloxacin) and lipophilic (clarithromycin) model drugs, with a mean particle size under 300 nm. Therefore, copolymeric micelles can be used as a suitable drug delivery system for mucous membranes and skin.
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Affiliation(s)
- Farhad Mohammadi
- Department of Pharmaceutics, Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Yazd, Iran
| | - Alireza Moradi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Yazd, Iran
| | - Fatemeh Tavakoli
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Pharmaceutical Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Yazd, Iran
| | - Samaneh Rahmati
- Department of Pharmaceutics, Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Yazd, Iran
| | - Rashin Giti
- Department of Prosthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Fars, Iran
| | - Vahid Ramezani
- Department of Pharmaceutics, Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Yazd, Iran
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Hye T, Moinuddin SM, Sarkar T, Nguyen T, Saha D, Ahsan F. An evolving perspective on novel modified release drug delivery systems for inhalational therapy. Expert Opin Drug Deliv 2023; 20:335-348. [PMID: 36720629 PMCID: PMC10699164 DOI: 10.1080/17425247.2023.2175814] [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: 08/15/2022] [Accepted: 01/30/2023] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Drugs delivered via the lungs are predominantly used to treat various respiratory disorders, including asthma, chronic obstructive pulmonary diseases, respiratory tract infections and lung cancers, and pulmonary vascular diseases such as pulmonary hypertension. To treat respiratory diseases, targeted, modified or controlled release inhalation formulations are desirable for improved patient compliance and superior therapeutic outcome. AREAS COVERED This review summarizes the important factors that have an impact on the inhalable modified release formulation approaches with a focus toward various formulation strategies, including dissolution rate-controlled systems, drug complexes, site-specific delivery, drug-polymer conjugates, and drug-polymer matrix systems, lipid matrix particles, nanosystems, and formulations that can bypass clearance via mucociliary system and alveolar macrophages. EXPERT OPINION Inhaled modified release formulations can potentially reduce dosing frequency by extending drug's residence time in the lungs. However, inhalable modified or controlled release drug delivery systems remain unexplored and underdeveloped from the commercialization perspective. This review paper addresses the current state-of-the-art of inhaled controlled release formulations, elaborates on the avenues for developing newer technologies for formulating various drugs with tailored release profiles after inhalational delivery and explains the challenges associated with translational feasibility of modified release inhalable formulations.
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Affiliation(s)
- Tanvirul Hye
- Oakland University William Beaumont School of Medicine, 586 Pioneer Dr, 48309, Rochester, MI, USA
| | - Sakib M. Moinuddin
- California Northstate University, College of Pharmacy, 9700 West Taron Drive, 95757, Elk Grove, CA, USA
- East Bay Institute for Research & Education (EBIRE), 95655, Mather, CA, USA
| | - Tanoy Sarkar
- California Northstate University, College of Pharmacy, 9700 West Taron Drive, 95757, Elk Grove, CA, USA
- East Bay Institute for Research & Education (EBIRE), 95655, Mather, CA, USA
| | - Trieu Nguyen
- California Northstate University, College of Pharmacy, 9700 West Taron Drive, 95757, Elk Grove, CA, USA
- East Bay Institute for Research & Education (EBIRE), 95655, Mather, CA, USA
| | - Dipongkor Saha
- California Northstate University, College of Pharmacy, 9700 West Taron Drive, 95757, Elk Grove, CA, USA
| | - Fakhrul Ahsan
- California Northstate University, College of Pharmacy, 9700 West Taron Drive, 95757, Elk Grove, CA, USA
- East Bay Institute for Research & Education (EBIRE), 95655, Mather, CA, USA
- MedLuidics, 95757, Elk Grove, CA, USA
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Rahman Sabuj MZ, Islam N. Inhaled antibiotic-loaded polymeric nanoparticles for the management of lower respiratory tract infections. NANOSCALE ADVANCES 2021; 3:4005-4018. [PMID: 36132845 PMCID: PMC9419283 DOI: 10.1039/d1na00205h] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/16/2021] [Indexed: 05/09/2023]
Abstract
Lower respiratory tract infections (LRTIs) are one of the leading causes of deaths in the world. Currently available treatment for this disease is with high doses of antibiotics which need to be administered frequently. Instead, pulmonary delivery of drugs has been considered as one of the most efficient routes of drug delivery to the targeted areas as it provides rapid onset of action, direct deposition of drugs into the lungs, and better therapeutic effects at low doses and is self-administrable by the patients. Thus, there is a need for scientists to design more convenient pulmonary drug delivery systems towards the innovation of a novel treatment system for LRTIs. Drug-encapsulating polymer nanoparticles have been investigated for lung delivery which could significantly reduce the limitations of the currently available treatment system for LRTIs. However, the selection of an appropriate polymer carrier for the drugs is a critical issue for the successful formulations of inhalable nanoparticles. In this review, the current understanding of LRTIs, management systems for this disease and their limitations, pulmonary drug delivery systems and the challenges of drug delivery through the pulmonary route are discussed. Drug-encapsulating polymer nanoparticles for lung delivery, antibiotics used in pulmonary delivery and drug encapsulation techniques have also been reviewed. A strong emphasis is placed on the impact of drug delivery into the infected lungs.
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Affiliation(s)
- Mohammad Zaidur Rahman Sabuj
- Pharmacy Discipline, School of Clinical Sciences, Queensland University of Technology (QUT) Brisbane QLD Australia
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT) Brisbane QLD Australia
| | - Nazrul Islam
- Pharmacy Discipline, School of Clinical Sciences, Queensland University of Technology (QUT) Brisbane QLD Australia
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT) Brisbane QLD Australia
- Centre for Immunology and Infection Control (CIIC), Queensland University of Technology (QUT) Brisbane QLD Australia
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Lv Y, Zhang J, Wang C. Self-assembled chitosan nanoparticles for intranasal delivery of recombinant protein interleukin-17 receptor C (IL-17RC): preparation and evaluation in asthma mice. Bioengineered 2021; 12:3029-3039. [PMID: 34180764 PMCID: PMC8806589 DOI: 10.1080/21655979.2021.1940622] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Asthma is mentioned as a chronic airway inflammatory disease, whose pathogenesis is complicated. The promotion of inflammation in asthma by IL-17A and IL-17F has been confirmed. In addition to covalent homodimers, both cytokines are also able to form heterodimers, further inducing downstream pathways via binding to the IL-17RA and IL-17RC receptor complex. In recent years, IL-17RA and its signal transduction pathway have been extensively researched. IL-17RC, however, remains relatively unexplored. In the present study, we self-assembled chitosan (CS) nanoparticles for intranasal delivery of recombinant protein IL-17RC (rIL-17RC) and preliminarily investigated its effect on a murine model of allergic asthma induced by ovalbumin (OVA). rIL-17RC was produced by the prokaryotic expression system and encapsulated into the CS nanoparticles via ionic cross-linking technique. The results showed that CS-RC nanoparticles via intranasal intervention significantly caused inhibition of mucus secretion and airway inflammatory cell infiltration, and reduced IL-4, IL-17, IL-17F levels in BALF. Hence, delivering receptor proteins such as IL-17RC, through CS nanoparticles as a carrier, could be an attractive therapeutic intervention for asthma.
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Affiliation(s)
- Yongli Lv
- Department of Paediatrics, Xinhua Hospital Affiliated To Shanghai Jiao Tong University School Of Medicine, Shanghai, China
| | - Jianhua Zhang
- Department of Paediatrics, Xinhua Hospital Affiliated To Shanghai Jiao Tong University School Of Medicine, Shanghai, China
| | - Chaoying Wang
- Department of Paediatrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Satari N, Taymouri S, Varshosaz J, Rostami M, Mirian M. Preparation and evaluation of inhalable dry powder containing glucosamine-conjugated gefitinib SLNs for lung cancer therapy. Drug Dev Ind Pharm 2020; 46:1265-1277. [PMID: 32594775 DOI: 10.1080/03639045.2020.1788063] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Gefitinib as an epidermal growth factor receptor tyrosine kinase inhibitor has strong potential in lung cancer therapy. However, a major challenge of using gefitinib is its toxicities. In the present study, we developed a dry powder inhaler dosage form containing gefitinib loaded glucosamine targeted solid lipid nanopaticles (Gef-G-SLNs) to locally transfer anticancer agent to the lung tumor. The Gef-G-SLNs were prepared by emulsion-solvent diffusion and evaporation method and optimized with irregular factorial design. The optimized nanoformulation was tested for action against A549 cells. Mannitol or lactose based dry powders were obtained from Gef-G-SLNs after spray drying and characterized using Anderson Cascade Impactor. The optimized formulation had drug loading of 33.29%, encapsulation efficiency of 97.31 ± 0.23%, zeta potential of -15.53 ± 0.47 mV, particle size of 187.23 ± 14.08 nm, polydispersity index of 0.28 ± 0.02 and release efficiency of 35.46 ± 2.25%. The Gef-G-SLNs showed superior anticancer effect compared to free gefitinib. The increased cellular uptake of G-SLNs in A549 cells was demonstrated compared with non-targeted SLNs using flow cytometry and fluorescence microscopy. The produced mannitol based microparticles showed suitable aerodynamic properties with an acceptable mass median aerodynamic diameter of 4.48 µm and fine particle fraction of 44.41%. Therefore, it can be concluded that this formulation represents promising drug delivery to treatment of lung cancer.
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Affiliation(s)
- Nazafarin Satari
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Somayeh Taymouri
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Jaleh Varshosaz
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahboubeh Rostami
- Department of Medicinal Chemistry, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mina Mirian
- Department of Biotechnology, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
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Anversa Dimer F, de Souza Carvalho-Wodarz C, Goes A, Cirnski K, Herrmann J, Schmitt V, Pätzold L, Abed N, De Rossi C, Bischoff M, Couvreur P, Müller R, Lehr CM. PLGA nanocapsules improve the delivery of clarithromycin to kill intracellular Staphylococcus aureus and Mycobacterium abscessus. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2019; 24:102125. [PMID: 31751769 DOI: 10.1016/j.nano.2019.102125] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 09/16/2019] [Accepted: 11/05/2019] [Indexed: 11/29/2022]
Abstract
Drug delivery systems are promising for targeting antibiotics directly to infected tissues. To reach intracellular Staphylococcus aureus and Mycobacterium abscessus, we encapsulated clarithromycin in PLGA nanocapsules, suitable for aerosol delivery by nebulization of an aqueous dispersion. Compared to the same dose of free clarithromycin, nanoencapsulation reduced 1000 times the number of intracellular S. aureus in vitro. In RAW cells, while untreated S. aureus was located in acidic compartments, the treated ones were mostly situated in non-acidic compartments. Clarithromycin-nanocapsules were also effective against M. abscessus (70-80% killing efficacy). The activity of clarithromycin-nanocapsules against S. aureus was also confirmed in vivo, using a murine wound model as well as in zebrafish. The permeability of clarithromycin-nanocapsules across Calu-3 monolayers increased in comparison to the free drug, suggesting an improved delivery to sub-epithelial tissues. Thus, clarithromycin-nanocapsules are a promising strategy to target intracellular S. aureus and M. abscessus.
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Affiliation(s)
- Frantiescoli Anversa Dimer
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University, Saarbrücken, Germany
| | - Cristiane de Souza Carvalho-Wodarz
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University, Saarbrücken, Germany.
| | - Adriely Goes
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University, Saarbrücken, Germany; Department of Pharmacy, Saarland University, Saarbrücken, Germany
| | - Katarina Cirnski
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University, Saarbrücken, Germany; German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Hannover, Germany
| | - Jennifer Herrmann
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University, Saarbrücken, Germany; German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Hannover, Germany
| | - Viktoria Schmitt
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University, Saarbrücken, Germany; German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Hannover, Germany
| | - Linda Pätzold
- Institute for Medical Microbiology and Hygiene, Saarland University, Homburg, Germany
| | - Nadia Abed
- Institut Galien Paris-Sud, UMR8612, Univ. Paris-Sud, Université Paris-Saclay, Châtenay-Malabry, France
| | - Chiara De Rossi
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University, Saarbrücken, Germany
| | - Markus Bischoff
- Institute for Medical Microbiology and Hygiene, Saarland University, Homburg, Germany
| | - Patrick Couvreur
- Institut Galien Paris-Sud, UMR8612, Univ. Paris-Sud, Université Paris-Saclay, Châtenay-Malabry, France
| | - Rolf Müller
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University, Saarbrücken, Germany; German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Hannover, Germany
| | - Claus-Michael Lehr
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University, Saarbrücken, Germany; Department of Pharmacy, Saarland University, Saarbrücken, Germany.
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Shiehzadeh F, Hadizadeh F, Mohammadpour A, Aryan E, Gholami L, Tafaghodi M. Streptomycin sulfate dry powder inhalers for the new tuberculosis treatment schedule. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.05.052] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Elmowafy E, Soliman ME. Losartan-chitosan/dextran sulfate microplex as a carrier to lung therapeutics: Dry powder inhalation, aerodynamic profile and pulmonary tolerability. Int J Biol Macromol 2019; 136:220-229. [PMID: 31195046 DOI: 10.1016/j.ijbiomac.2019.06.058] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 05/19/2019] [Accepted: 06/09/2019] [Indexed: 12/25/2022]
Abstract
This study aims to obtain an inhalation powder with meaningful aerodynamic and safety profiles for the lung delivery of losartan (LS). For this, the capacity of self-assembly of chitosan (CS) and dextran sulfate (DS) to form CS/DS microplex (MC), incorporating high payload of hydrophilic LS was harnessed. Dry powder inhaler (LS-MC-DPI), prepared via spray drying of the best achieved LS-MC, was proposed to impart precise engineered inhalation characteristics. Micrometric robust CS/DS MC was revealed to offer the opportunity to heighten LS encapsulation, accounting for ~75%. LS-MC-DPI was successfully developed with high yield, flowability, respirable aerodynamic size and morphology which formed swellable and mucoadhesive network, facilitating intra-pulmonary delivery. Moreover, sustained release pattern, augmented deep lung deposition and safe histological profile were realized. Overall, the newly developed LS-MC DPI shows promises as an inhalation system. The aerodynamic performance and safety of LS-MC-DPI verify its suitability for further in vivo lung therapeutics.
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Affiliation(s)
- Enas Elmowafy
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt, Monazzamet Elwehda Elafrikeya Street, Abbaseyya, Cairo P.O. 11566, Egypt.
| | - Mahmoud E Soliman
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt, Monazzamet Elwehda Elafrikeya Street, Abbaseyya, Cairo P.O. 11566, Egypt
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Hamed A, Osman R, Al-Jamal KT, Holayel SM, Geneidi AS. Enhanced antitubercular activity, alveolar deposition and macrophages uptake of mannosylated stable nanoliposomes. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.03.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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12
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Farhangi M, Mahboubi A, Kobarfard F, Vatanara A, Mortazavi SA. Optimization of a dry powder inhaler of ciprofloxacin-loaded polymeric nanomicelles by spray drying process. Pharm Dev Technol 2019; 24:584-592. [DOI: 10.1080/10837450.2018.1545237] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Mahdieh Farhangi
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arash Mahboubi
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Food Safety Research Center, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farzad Kobarfard
- Department of Medicinal Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Vatanara
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Alireza Mortazavi
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Varshosaz J, Taymouri S, Jafari E, Jahanian-Najafabadi A, Taheri A. Formulation and characterization of cellulose acetate butyrate nanoparticles loaded with nevirapine for HIV treatment. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.08.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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14
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High dose dry powder inhalers to overcome the challenges of tuberculosis treatment. Int J Pharm 2018; 550:398-417. [PMID: 30179703 DOI: 10.1016/j.ijpharm.2018.08.061] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/30/2018] [Accepted: 08/31/2018] [Indexed: 12/15/2022]
Abstract
Tuberculosis (TB) is a major global health burden. The emergence of the human immunodeficiency virus (HIV) epidemic and drug resistance has complicated global TB control. Pulmonary delivery of drugs using dry powder inhalers (DPI) is an emerging approach to treat TB. In comparison with the conventional pulmonary delivery for asthma and chronic obstructive pulmonary disease (COPD), TB requires high dose delivery to the lung. However, high dose delivery depends on the successful design of the inhaler device and the formulation of highly aerosolizable powders. Particle engineering techniques play an important role in the development of high dose dry powder formulations. This review focuses on the development of high dose dry powder formulations for TB treatment with background information on the challenges of the current treatment of TB and the potential for pulmonary delivery. Particle engineering techniques with a particular focus on the spray drying and a summary of the developed dry powder formulations using different techniques are also discussed.
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15
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The effect of l -leucine on the stabilization and inhalability of spray-dried solid lipid nanoparticles for pulmonary drug delivery. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.06.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Lee WH, Loo CY, Ghadiri M, Leong CR, Young PM, Traini D. The potential to treat lung cancer via inhalation of repurposed drugs. Adv Drug Deliv Rev 2018; 133:107-130. [PMID: 30189271 DOI: 10.1016/j.addr.2018.08.012] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 08/27/2018] [Accepted: 08/31/2018] [Indexed: 01/10/2023]
Abstract
Lung cancer is a highly invasive and prevalent disease with ineffective first-line treatment and remains the leading cause of cancer death in men and women. Despite the improvements in diagnosis and therapy, the prognosis and outcome of lung cancer patients is still poor. This could be associated with the lack of effective first-line oncology drugs, formation of resistant tumors and non-optimal administration route. Therefore, the repurposing of existing drugs currently used for different indications and the introduction of a different method of drug administration could be investigated as an alternative to improve lung cancer therapy. This review describes the rationale and development of repositioning of drugs for lung cancer treatment with emphasis on inhalation. The review includes the current progress of repurposing non-cancer drugs, as well as current chemotherapeutics for lung malignancies via inhalation. Several potential non-cancer drugs such as statins, itraconazole and clarithromycin, that have demonstrated preclinical anti-cancer activity, are also presented. Furthermore, the potential challenges and limitations that might hamper the clinical translation of repurposed oncology drugs are described.
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Affiliation(s)
- Wing-Hin Lee
- Faculty of Pharmacy and Health Sciences, Royal College of Medicine Perak, Universiti Kuala Lumpur (RCMP UniKL), Ipoh, Perak, Malaysia; Respiratory Technology, Woolcock Institute of Medical Research, and Discipline of Pharmacology, Faculty of Medicine and Health, The University of Sydney, NSW 2037, Australia; Centre for Lung Cancer Research, 431 Glebe Point Road, 2037, Australia.
| | - Ching-Yee Loo
- Faculty of Pharmacy and Health Sciences, Royal College of Medicine Perak, Universiti Kuala Lumpur (RCMP UniKL), Ipoh, Perak, Malaysia; Respiratory Technology, Woolcock Institute of Medical Research, and Discipline of Pharmacology, Faculty of Medicine and Health, The University of Sydney, NSW 2037, Australia; Centre for Lung Cancer Research, 431 Glebe Point Road, 2037, Australia
| | - Maliheh Ghadiri
- Respiratory Technology, Woolcock Institute of Medical Research, and Discipline of Pharmacology, Faculty of Medicine and Health, The University of Sydney, NSW 2037, Australia; Centre for Lung Cancer Research, 431 Glebe Point Road, 2037, Australia
| | - Chean-Ring Leong
- Section of Bioengineering Technology, Universiti Kuala Lumpur (UniKL) MICET, Alor Gajah, Melaka, Malaysia
| | - Paul M Young
- Respiratory Technology, Woolcock Institute of Medical Research, and Discipline of Pharmacology, Faculty of Medicine and Health, The University of Sydney, NSW 2037, Australia; Centre for Lung Cancer Research, 431 Glebe Point Road, 2037, Australia
| | - Daniela Traini
- Respiratory Technology, Woolcock Institute of Medical Research, and Discipline of Pharmacology, Faculty of Medicine and Health, The University of Sydney, NSW 2037, Australia; Centre for Lung Cancer Research, 431 Glebe Point Road, 2037, Australia
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17
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Abstract
This review discusses recent developments in the manufacture of inhalable dry powder formulations. Pulmonary drugs have distinct advantages compared with other drug administration routes. However, requirements of drugs properties complicate the manufacture. Control over crystallization to make particles with the desired properties in a single step is often infeasible, which calls for micronization techniques. Although spray drying produces particles in the desired size range, a stable solid state may not be attainable. Supercritical fluids may be used as a solvent or antisolvent, which significantly reduces solvent waste. Future directions include application areas such as biopharmaceuticals for dry powder inhalers and new processing strategies to improve the control over particle formation such as continuous manufacturing with in-line process analytical technologies.
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18
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Dhand R. The Rationale and Evidence for Use of Inhaled Antibiotics to Control Pseudomonas aeruginosa Infection in Non-cystic Fibrosis Bronchiectasis. J Aerosol Med Pulm Drug Deliv 2017; 31:121-138. [PMID: 29077527 PMCID: PMC5994662 DOI: 10.1089/jamp.2017.1415] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Non-cystic fibrosis bronchiectasis (NCFBE) is a chronic inflammatory lung disease characterized by irreversible dilation of the bronchi, symptoms of persistent cough and expectoration, and recurrent infective exacerbations. The prevalence of NCFBE is on the increase in the United States and Europe, but no licensed therapies are currently available for its treatment. Although there are many similarities between NCFBE and cystic fibrosis (CF) in terms of respiratory symptoms, airway microbiology, and disease progression, there are key differences, for example, in response to treatment, suggesting differences in pathogenesis. This review discusses possible reasons underlying differences in response to inhaled antibiotics in people with CF and NCFBE. Pseudomonas aeruginosa infections are associated with the most severe forms of bronchiectasis. Suboptimal levels of antibiotics in the lung increase the mutation frequency of P. aeruginosa and lead to the development of mucoid strains characterized by formation of a protective polysaccharide biofilm. Mucoid strains of P. aeruginosa are associated with a chronic infection stage, requiring long-term antibiotic therapy. Inhaled antibiotics provide targeted delivery to the lung with minimal systemic toxicity and adverse events compared with oral/intravenous routes of administration, and they could be alternative treatment options to help address some of the treatment challenges in the management of severe cases of NCFBE. This review provides an overview of completed and ongoing trials that evaluated inhaled antibiotic therapy for NCFBE. Recently, several investigators conducted phase 3 randomized controlled trials with inhaled aztreonam and ciprofloxacin in patients with NCFBE. While the aztreonam trial results were not associated with significant clinical benefit in NCFBE, initial results reported from the inhaled ciprofloxacin (dry powder for inhalation and liposome-encapsulated/dual-release formulations) trials hold promise. A more targeted approach could identify specific populations of NCFBE patients who benefit from inhaled antibiotics.
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Affiliation(s)
- Rajiv Dhand
- Department of Medicine, University of Tennessee Graduate School of Medicine , Knoxville, Tennessee
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19
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Tavares M, Cabral RP, Costa C, Martins P, Fernandes AR, Casimiro T, Aguiar-Ricardo A. Development of PLGA dry powder microparticles by supercritical CO 2 -assisted spray-drying for potential vaccine delivery to the lungs. J Supercrit Fluids 2017. [DOI: 10.1016/j.supflu.2017.06.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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20
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21
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Chen L, Okuda T, Lu XY, Chan HK. Amorphous powders for inhalation drug delivery. Adv Drug Deliv Rev 2016; 100:102-15. [PMID: 26780404 DOI: 10.1016/j.addr.2016.01.002] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 12/23/2015] [Accepted: 01/02/2016] [Indexed: 11/25/2022]
Abstract
For inhalation drug delivery, amorphous powder formulations offer the benefits of increased bioavailability for poorly soluble drugs, improved biochemical stability for biologics, and expanded options of using various drugs and their combinations. However, amorphous formulations usually have poor physicochemical stability. This review focuses on inhalable amorphous powders, including the production methods, the active pharmaceutical ingredients and the excipients with a highlight on stabilization of the particles.
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22
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Alaei S, Ghasemian E, Vatanara A. Spray drying of cefixime nanosuspension to form stabilized and fast dissolving powder. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2015.10.051] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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23
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Sharma M, Gupta N, Gupta S. Implications of designing clarithromycin loaded solid lipid nanoparticles on their pharmacokinetics, antibacterial activity and safety. RSC Adv 2016. [DOI: 10.1039/c6ra12841f] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The major obstacles for treatment of intracellular infections with clarithromycin are poor gastrointestinal solubility, short half-life (3–4 h), low oral bioavailability and hepatotoxicity.
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Affiliation(s)
- Manu Sharma
- Department of Pharmacy
- Banasthali University
- Banasthali
- India
| | - Namita Gupta
- Department of Pharmacy
- Banasthali University
- Banasthali
- India
| | - Sumeet Gupta
- Department of Pharmacology
- M M College of Pharmacy
- Maharishi Markandeshwar University
- Ambala-133207
- India
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24
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Poursina N, Vatanara A, Rouini MR, Gilani K, Rouholamini Najafabadi A. Systemic delivery of parathyroid hormone (1–34) using spray freeze-dried inhalable particles. Pharm Dev Technol 2015; 22:733-739. [DOI: 10.3109/10837450.2015.1125924] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Narges Poursina
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Vatanara
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Rouini
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Kambiz Gilani
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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25
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Ghasemian E, Vatanara A, Rouini MR, Rouholamini Najafabadi A, Gilani K, Lavasani H, Mohajel N. Inhaled sildenafil nanocomposites: lung accumulation and pulmonary pharmacokinetics. Pharm Dev Technol 2015; 21:961-971. [DOI: 10.3109/10837450.2015.1086369] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Elham Ghasemian
- Pharmaceutics Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran and
| | - Alireza Vatanara
- Pharmaceutics Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran and
| | - Mohammad Reza Rouini
- Pharmaceutics Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran and
| | | | - Kambiz Gilani
- Pharmaceutics Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran and
| | - Hoda Lavasani
- Pharmaceutics Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran and
| | - Nasir Mohajel
- Department of Virology, Pasteur Institute of Iran, Tehran, Iran
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26
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Sugianto TD, Chan HK. Inhaled antibiotics in the treatment of non-cystic fibrosis bronchiectasis: clinical and drug delivery perspectives. Expert Opin Drug Deliv 2015; 13:7-22. [DOI: 10.1517/17425247.2015.1078309] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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27
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Moreno-Sastre M, Pastor M, Salomon CJ, Esquisabel A, Pedraz JL. Pulmonary drug delivery: a review on nanocarriers for antibacterial chemotherapy. J Antimicrob Chemother 2015. [DOI: 10.1093/jac/dkv192] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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28
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Dimer F, de Souza Carvalho-Wodarz C, Haupenthal J, Hartmann R, Lehr CM. Inhalable Clarithromycin Microparticles for Treatment of Respiratory Infections. Pharm Res 2015; 32:3850-61. [PMID: 26113237 DOI: 10.1007/s11095-015-1745-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 06/17/2015] [Indexed: 01/15/2023]
Abstract
PURPOSE The aim of this work was to develop clarithromycin microparticles (CLARI-MP) and evaluate their aerodynamic behavior, safety in bronchial cells and anti-bacterial efficacy. METHODS Microparticles containing clarithromycin were prepared as dry powder carrier for inhalation, using leucine and chitosan. CLARI-MP were deposited on Calu-3 grown at air-interface condition, using the pharmaceutical aerosol deposition device on cell cultures (PADDOCC). Deposition efficacy, transport across the cells and cytotoxicity were determined. Anti-antibacterial effect was evaluated against Pseudomonas aeruginosa, Escherichia coli and Staphylococcus aureus. RESULTS Microparticles were of spherical shape, smooth surface and size of about 765 nm. Aerosolization performance showed a fine particle fraction (FPF) of 73.3%, and a mass median aerodynamic diameter (MMAD) of 1.8 μm. Deposition on Calu-3 cells using the PADDOCC showed that 8.7 μg/cm(2) of deposited powder were transported to the basolateral compartment after 24 h. The safety of this formulation is supported by the integrity of the cellular epithelial barrier and absence of toxicity, and the antimicrobial activity demonstrated for Gram positive and Gram negative bacteria. CONCLUSIONS The appropriate aerodynamic properties and the excellent deposition on Calu-3 cells indicate that clarithromycin microparticles are suitable for administration via pulmonary route and are efficient to inhibit bacteria proliferation.
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Affiliation(s)
- Frantiescoli Dimer
- Department of Drug Delivery (DDEL), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University, 66123, Saarbrücken, Germany
| | - Cristiane de Souza Carvalho-Wodarz
- Department of Drug Delivery (DDEL), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University, 66123, Saarbrücken, Germany
| | - Jörg Haupenthal
- Department of Drug Development and Optimization (DDOP), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University, 66123, Saarbrücken, Germany
| | - Rolf Hartmann
- Department of Drug Development and Optimization (DDOP), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University, 66123, Saarbrücken, Germany.,Pharmaceutical and Medical Chemistry, Campus C2.3, Saarland University, 66123, Saarbrücken, Germany
| | - Claus-Michael Lehr
- Department of Drug Delivery (DDEL), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University, 66123, Saarbrücken, Germany. .,Biopharmacy and Pharmaceutical Technology, Department of Pharmacy, Saarland University, Saarbrücken, 66123, Germany.
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29
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Mehanna MM, Mohyeldin SM, Elgindy NA. Respirable nanocarriers as a promising strategy for antitubercular drug delivery. J Control Release 2014; 187:183-97. [PMID: 24878180 DOI: 10.1016/j.jconrel.2014.05.038] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 05/19/2014] [Accepted: 05/20/2014] [Indexed: 01/16/2023]
Abstract
Tuberculosis is considered a fatal respiratory infectious disease that represents a global threat, which must be faced. Despite the availability of oral conventional anti-tuberculosis therapy, the disease is characterized by high progression. The leading causes are poor patient compliance and failure to adhere to the drug regimen primarily due to systemic toxicity. In this context, inhalation therapy as a non-invasive route of administration is capable of increasing local drug concentrations in lung tissues, the primary infection side, by passive targeting as well as reducing the risk of systemic toxicity and hence improving the patient compliance. Nanotechnology represents a promising strategy in the development of inhaled drug delivery systems. Nanocarriers can improve the drug effectiveness and decrease the expected side effects as consequences of their ability to target the drug to the infected area as well as sustain its release in a prolonged manner. The current review summarizes the state-of-the-art in the development of inhaled nanotechnological carriers confined currently available anti-tuberculosis drugs (anti TB) for local and targeting drug delivery specifically, polymeric nanoparticles, solid lipid nanoparticles, nanoliposomes and nanomicelles. Moreover, complexes and ion pairs are also reported. The impact and progress of nanotechnology on the therapeutic effectiveness and patient adherence to anti TB regimen are addressed.
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Affiliation(s)
- Mohammed M Mehanna
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt.
| | - Salma M Mohyeldin
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Nazik A Elgindy
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
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30
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Nanoparticle-mediated pulmonary drug delivery: a review. Int J Mol Sci 2014; 15:5852-73. [PMID: 24717409 PMCID: PMC4013600 DOI: 10.3390/ijms15045852] [Citation(s) in RCA: 238] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 03/28/2014] [Accepted: 03/28/2014] [Indexed: 11/17/2022] Open
Abstract
Colloidal drug delivery systems have been extensively investigated as drug carriers for the application of different drugs via different routes of administration. Systems, such as solid lipid nanoparticles, polymeric nanoparticles and liposomes, have been investigated for a long time for the treatment of various lung diseases. The pulmonary route, owing to a noninvasive method of drug administration, for both local and systemic delivery of an active pharmaceutical ingredient (API) forms an ideal environment for APIs acting on pulmonary diseases and disorders. Additionally, this route offers many advantages, such as a high surface area with rapid absorption due to high vascularization and circumvention of the first pass effect. Aerosolization or inhalation of colloidal systems is currently being extensively studied and has huge potential for targeted drug delivery in the treatment of various diseases. Furthermore, the surfactant-associated proteins present at the interface enhance the effect of these formulations by decreasing the surface tension and allowing the maximum effect. The most challenging part of developing a colloidal system for nebulization is to maintain the critical physicochemical parameters for successful inhalation. The following review focuses on the current status of different colloidal systems available for the treatment of various lung disorders along with their characterization. Additionally, different in vitro, ex vivo and in vivo cell models developed for the testing of these systems with studies involving cell culture analysis are also discussed.
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