1
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Karpuz M, Aydin HH, Ozgenc E, Erel-Akbaba G, Atlihan-Gundogdu E, Senyigit Z. 99mTc-labeled, tofacitinib citrate encapsulated chitosan microspheres loaded in situ gel formulations for intra-articular treatment of rheumatoid arthritis. Drug Dev Res 2024; 85:e22247. [PMID: 39138857 DOI: 10.1002/ddr.22247] [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: 03/27/2024] [Revised: 07/07/2024] [Accepted: 07/28/2024] [Indexed: 08/15/2024]
Abstract
Inflammatory diseases including rheumatoid arthritis are major health problems. Although different techniques and drugs are clinically available for the diagnosis and therapy of the disease, novel approaches regarding radiolabeled drug delivery systems are researched. Hence, in the present study, it was aimed to design, prepare, and characterize 99mTc-radiolabeled and tofacitinib citrate-encapsulated microsphere loaded poloxamer in situ gel formulations for the intra-articular treatment. Among nine different microsphere formulations, MS/TOFA-9 was chosen as the most proper one due to particle size, high encapsulation efficiency, and in vitro drug release behavior. Poloxamer 338 at a concentration of 15% was used to prepare in situ gel formulations. For intra-articular administration, microspheres were dispersed in an in situ gel containing 15% Poloxamer 338 and characterized in terms of gelation temperature, viscosity, rheological, mechanical, and spreadability properties. After the determination of the safe dose for MS/TOFA-9 and PLX-MS/TOFA-9 as 40 µL/mL in the cell culture study performed on healthy cells, the high anti-inflammatory effects were due to significant cellular inhibition of fibroblasts. In the radiolabeling studies with 99mTc, the optimum radiolabeling condition was determined as 200 ppm SnCl2 and 0.5 mg ascorbic acid, and both 99mTc-MS/TOFA-9 and 99mTc-PLX-MS/TOFA-9 exhibited high cellular binding capacity. In conclusion, although further in vivo experiments are required, PLX-MS/TOFA-9 was found to be a promising agent for intra-articular injection in rheumatoid arthritis.
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Affiliation(s)
- Merve Karpuz
- Department of Radiopharmacy, Faculty of Pharmacy, Izmir Katip Celebi University, Izmir, Turkey
| | - Husniye Hande Aydin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Izmir Katip Celebi University, Izmir, Turkey
| | - Emre Ozgenc
- Department of Radiopharmacy, Faculty of Pharmacy, Ege University, Izmir, Turkey
| | - Gulsah Erel-Akbaba
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Izmir Katip Celebi University, Izmir, Turkey
| | | | - Zeynep Senyigit
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Izmir Katip Celebi University, Izmir, Turkey
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2
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Pasero L, Susa F, Limongi T, Pisano R. A Review on Micro and Nanoengineering in Powder-Based Pulmonary Drug Delivery. Int J Pharm 2024; 659:124248. [PMID: 38782150 DOI: 10.1016/j.ijpharm.2024.124248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 05/16/2024] [Accepted: 05/18/2024] [Indexed: 05/25/2024]
Abstract
Pulmonary delivery of drugs has emerged as a promising approach for the treatment of both lung and systemic diseases. Compared to other drug delivery routes, inhalation offers numerous advantages including high targeting, fewer side effects, and a huge surface area for drug absorption. However, the deposition of drugs in the lungs can be limited by lung defence mechanisms such as mucociliary and macrophages' clearance. Among the delivery devices, dry powder inhalers represent the optimal choice due to their stability, ease of use, and absence of propellants. In the last decades, several bottom-up techniques have emerged over traditional milling to produce inhalable powders. Among these techniques, the most employed ones are spray drying, supercritical fluid technology, spray freeze-drying, and thin film freezing. Inhalable dry powders can be constituted by micronized drugs attached to a coarse carrier (e.g., lactose) or drugs embedded into a micro- or nanoparticle. Particulate-based formulations are commonly composed of polymeric micro- and nanoparticles, liposomes, solid lipid nanoparticles, dendrimers, nanocrystals, extracellular vesicles, and inorganic nanoparticles. Moreover, engineered formulations including large porous particles, swellable microparticles, nano-in-microparticles, and effervescent nanoparticles have been developed. Particle engineering has also a crucial role in tuning the physical-chemical properties of both carrier-based and carrier-free inhalable powders. This approach can increase powder flowability, deposition, and targeting by customising particle surface features.
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Affiliation(s)
- Lorena Pasero
- Department of Applied Science and Technology, Politecnico di Torino, 24 Corso Duca Degli Abruzzi, 10129 Torino, Italy.
| | - Francesca Susa
- Department of Applied Science and Technology, Politecnico di Torino, 24 Corso Duca Degli Abruzzi, 10129 Torino, Italy.
| | - Tania Limongi
- Department of Applied Science and Technology, Politecnico di Torino, 24 Corso Duca Degli Abruzzi, 10129 Torino, Italy; Department of Drug Science and Technology, University of Turin, 9 P. Giuria Street, 10125 Torino, Italy.
| | - Roberto Pisano
- Department of Applied Science and Technology, Politecnico di Torino, 24 Corso Duca Degli Abruzzi, 10129 Torino, Italy.
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3
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Li HY, Makatsoris C, Forbes B. Particulate bioaerogels for respiratory drug delivery. J Control Release 2024; 370:195-209. [PMID: 38641021 DOI: 10.1016/j.jconrel.2024.04.021] [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: 12/19/2023] [Revised: 04/05/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
The bioaerogel microparticles have been recently developed for respiratory drug delivery and attract fast increasing interests. These highly porous microparticles have ultralow density and hence possess much reduced aerodynamic diameter, which favour them with greatly enhanced dispersibility and improved aerosolisation behaviour. The adjustable particle geometric dimensions by varying preparation methods and controlling operation parameters make it possible to fabricate bioaerogel microparticles with accurate sizes for efficient delivery to the targeted regions of respiratory tract (i.e. intranasal and pulmonary). Additionally, the technical process can provide bioaerogel microparticles with the opportunities of accommodating polar, weak polar and non-polar drugs at sufficient amount to satisfy clinical needs, and the adsorbed drugs are primarily in the amorphous form that potentially can facilitate drug dissolution and improve bioavailability. Finally, the nature of biopolymers can further offer additional advantageous characteristics of improved mucoadhesion, sustained drug release and subsequently elongated time for continuous treatment on-site. These fascinating features strongly support bioaerogel microparticles to become a novel platform for effective delivery of a wide range of drugs to the targeted respiratory regions, with increased drug residence time on-site, sustained drug release, constant treatment for local and systemic diseases and anticipated better-quality of therapeutic effects.
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Affiliation(s)
- Hao-Ying Li
- Institute of Pharmaceutical Science, King's College London, London SE1 9NH, United Kingdom.
| | - Charalampos Makatsoris
- Department of Engineering, Faculty of Natural & Mathematical Sciences, King's College London, WC2R 2LS, United Kingdom
| | - Ben Forbes
- Institute of Pharmaceutical Science, King's College London, London SE1 9NH, United Kingdom.
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4
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Chauhan G, Wang X, Quadros M, Vats M, Gupta V. Chitosan/bovine serum albumin layer-by-layer assembled particles for non-invasive inhaled drug delivery to the lungs. Int J Biol Macromol 2024; 271:132526. [PMID: 38782317 DOI: 10.1016/j.ijbiomac.2024.132526] [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: 09/02/2023] [Revised: 05/09/2024] [Accepted: 05/18/2024] [Indexed: 05/25/2024]
Abstract
Layer-by-Layer (LbL) assembly of polyelectrolytes on a solid core particle is a well-established technique used to deliver drugs, proteins, regenerative medicines, combinatorial therapy, etc. It is a multifunctional delivery system which can be engineered using various core template particles and coating polymers. This study reports the development and in-vitro evaluation of LbL assembled particles for non-invasive inhaled delivery to the lungs. The LbL assembled particles were prepared by successively coating polyelectrolyte macromolecules, glycol chitosan and bovine serum albumin on 0.5- and 4.5-μm polystyrene particles. The LbL assembly of polyelectrolytes was confirmed by reversible change in zeta potential and sequential increase in the particle size after accumulation of the layer. The prepared LbL particles were further assessed for aerodynamic properties using two distinct nebulizers, and toxicity assessment in normal lung cells. The in-vitro aerosolization study performed using next generation impactor coupled with Pari LC Plus and Aeroeclipse nebulizer showed that both the LbL assembled 0.5 and 4.5-μm particles had MMAD <5 μm confirming suitable aerodynamic properties for non-invasive lung delivery. The in-vitro cytotoxicity, and TEER integrity following treatment with the LbL assembled particles in normal lung epithelial and fibroblasts showed no significant cytotoxicity rendering the LbL assembled particles safe. This study extends the efficiency of LbL assembled particles for novel applications towards delivery of small and large molecules into the lungs.
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Affiliation(s)
- Gautam Chauhan
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Xuechun Wang
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Mural Quadros
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Mukti Vats
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Vivek Gupta
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA.
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Sharma Y, Mahar R, Chakraborty A, Nainwal N. Optimizing the formulation variables for encapsulation of linezolid into polycaprolactone inhalable microspheres using double emulsion solvent evaporation. Tuberculosis (Edinb) 2023; 143:102417. [PMID: 37827017 DOI: 10.1016/j.tube.2023.102417] [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: 06/07/2023] [Revised: 09/11/2023] [Accepted: 10/01/2023] [Indexed: 10/14/2023]
Abstract
Inhaled antibiotics delivered through dry powder inhalers (DPIs) effectively treat severe bacterial infections by directly targeting the lungs. Our study focused on developing inhalable dry powder microspheres of linezolid (LNZ) using biodegradable polycaprolactone (PCL) polymer. The LNZ-PCL microspheres were fabricated using a double emulsification solvent evaporation method. Optimization of formulation parameters was performed using a factorial design. Evaluation of the microspheres included size, shape, drug loading, entrapment efficiency, aerosolization, and drug release. The morphological analysis confirmed spherical-shaped rough particles within the inhalable size range. The encapsulation efficiency was determined to be 52.84%, indicating successful drug incorporation. Aerosolization efficiency was significantly enhanced when LNZ-PCL microspheres were combined with lactose as a carrier, achieving a fine particle fraction (FPF) value of 70.90%. In-vitro dissolution studies demonstrated sustained drug release for over 24 h under lung pH conditions. Overall, our study highlights the potential of inhalable LNZ-PCL microspheres as a targeted approach for treating pulmonary tuberculosis. Further research and in-vivo studies are needed to validate their effectiveness in life-threatening bacterial infections.
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Affiliation(s)
- Yuwanshi Sharma
- School of Pharmaceutical Sciences and Technology, Sardar Bhagwan Singh University, Balawala, Dehradun, Uttarakhand, 248161, India
| | - Riya Mahar
- School of Pharmaceutical Sciences and Technology, Sardar Bhagwan Singh University, Balawala, Dehradun, Uttarakhand, 248161, India
| | | | - Nidhi Nainwal
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Premnagar, Dehradun, 248007, India.
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6
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Mahar R, Chakraborty A, Nainwal N. Formulation of Resveratrol-Loaded Polycaprolactone Inhalable Microspheres Using Tween 80 as an Emulsifier: Factorial Design and Optimization. AAPS PharmSciTech 2023; 24:131. [PMID: 37291478 DOI: 10.1208/s12249-023-02587-8] [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: 01/26/2023] [Accepted: 05/16/2023] [Indexed: 06/10/2023] Open
Abstract
Resveratrol (RSV) is a bioactive phytoconstituent that has potential applications in respiratory diseases. However, poor oral bioavailability is the major hurdle to its clinical use. In the present work, resveratrol-loaded polycaprolactone (PCL) inhalable microspheres (MSs) were formulated to improve their therapeutic potential. The inhalable microspheres were formulated using the emulsion-solvent evaporation method. In this research, inhalable resveratrol microspheres were prepared using Tween 80 in place of polyvinyl alcohol which formed insoluble lumps. A 32 factorial design was applied taking polymer (PCL) and emulsifier (Tween 80) as independent variables and drug loading (DL) and encapsulation efficiency (EE) as dependent variables. The DL and EE of the optimized formulation were found to be 30.6% and 63.84% respectively. The in vitro aerosolization study performed using the Anderson cascade impactor showed that the fine particle fraction (FPF) of optimized resveratrol polycaprolactone microspheres (RSV-PCL-MSs) blended with lactose, and RSV-PCL-MSs were significantly higher than those of the pure drugs. The MMADT (theoretical mass median aerodynamic diameter) of optimized RSV-PCL-MSs was found to be 3.25 ± 1.15. The particle size of microspheres was within the inhalable range, i.e., between 1 and 5 µm. The morphological analysis showed spherical-shaped particles with smooth surfaces. The in vitro release study showed sustained drug release from the microspheres for up to 12 h. The study concluded that resveratrol-loaded inhalable microspheres may be an efficient delivery system to treat COPD.
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Affiliation(s)
- Riya Mahar
- School of Pharmaceutical Sciences and Technology, Sardar Bhagwan Singh University, Balawala, Dehradun, 248161, India
- School of Pharmaceutical Sciences, Himgiri Zee University, Dehradun, Sherpur, 248197, Uttarakhand, India
| | | | - Nidhi Nainwal
- Uttaranchal Institute of Pharmaceutical Sciences and Technology, Uttaranchal University, Premnagar, Dehradun, Uttarakhand, 248007, India.
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Mahar R, Chakraborty A, Nainwal N, Bahuguna R, Sajwan M, Jakhmola V. Application of PLGA as a Biodegradable and Biocompatible Polymer for Pulmonary Delivery of Drugs. AAPS PharmSciTech 2023; 24:39. [PMID: 36653547 DOI: 10.1208/s12249-023-02502-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 01/04/2023] [Indexed: 01/20/2023] Open
Abstract
Pulmonary administration of biodegradable polymeric formulation is beneficial in the treatment of various respiratory diseases. For respiratory delivery, the polymer must be non-toxic, biodegradable, biocompatible, and stable. Poly D, L-lactic-co-glycolic acid (PLGA) is a widely used polymer for inhalable formulations because of its attractive mechanical and processing characteristics which give great opportunities to pharmaceutical industries to formulate novel inhalable products. PLGA has many pharmaceutical applications and its biocompatible nature produces non-toxic degradation products. The degradation of PLGA takes place through the non-enzymatic hydrolytic breakdown of ester bonds to produce free lactic acid and glycolic acid. The biodegradation products of PLGA are eliminated in the form of carbon dioxide (CO2) and water (H2O) by the Krebs cycle. The biocompatible properties of PLGA are investigated in various in vivo and in vitro studies. The high structural integrity of PLGA particles provides better stability, excellent drug loading, and sustained drug release. This review provides detailed information about PLGA as an inhalable grade polymer, its synthesis, advantages, physicochemical properties, biodegradability, and biocompatible characteristics. The important formulation aspects that must be considered during the manufacturing of inhalable PLGA formulations and the toxicity of PLGA in the lungs are also discussed in this paper. Additionally, a thorough overview is given on the application of PLGA as a particulate carrier in the treatment of major respiratory diseases, such as cystic fibrosis, lung cancer, tuberculosis, asthma, and pulmonary hypertension.
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Affiliation(s)
- Riya Mahar
- School of Pharmaceutical Sciences, Sardar Bhagwan Singh University, Balawala, Dehradun, 248001, Uttarakhand, India
| | - Arpita Chakraborty
- School of Pharmaceutical Sciences, Sardar Bhagwan Singh University, Balawala, Dehradun, 248001, Uttarakhand, India
| | - Nidhi Nainwal
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Premnagar, Dehradun, 248007, Uttarakhand, India.
| | - Richa Bahuguna
- School of Health Sciences and Technology, University of Petroleum and Energy Studies, Bidholi, Premnagar, Dehradun, 248007, Uttarakhand, India
| | - Meenakshi Sajwan
- Department of Pharmacy, GRD (PG) IMT, 214 Raipur Road, Dehradun, 248001, India
| | - Vikash Jakhmola
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Premnagar, Dehradun, 248007, Uttarakhand, India
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Wang Y, Feng M, Lin B, Peng X, Wang Z, Lv R. MET-targeted NIR II luminescence diagnosis and up-conversion guided photodynamic therapy for triple-negative breast cancer based on a lanthanide nanoprobe. NANOSCALE 2021; 13:18125-18133. [PMID: 34605506 DOI: 10.1039/d1nr05847a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this research, degradable peptide-modified upconversion nanoparticles (ZUPEA) were designed for the NIR II imaging and upconversion luminescence (UCL) guided photodynamic therapy (PDT) of triple-negative breast cancer (TNBC). Ultra-small rare-earth nanoparticles (RENPs) and the polymer mPEG-PLGA are polymerized into nano-microspheres via a double emulsion synthesis method, and a photosensitizer molecule (ZnPc) is added during the polymerization process to generate ZUPEA. Under 980 nm excitation, this strategy enhanced the red emission at 650 nm, showing an energy transfer efficiency of 38.3%, and the designed RENPs have better NIR II imaging abilities with a core@shell structure. These ZUPEA nanoparticles have good photodynamic therapeutic effects in vitro, and they can be degraded into small nanoparticles with a size of less than 6 nm. The cMBP-peptide-modified luminescent probe can recognize MDA-MB-231 TNBC cells in vivo when intravenously injected due to the positive targeted imaging effects of the cMBP peptide toward MET and negative targeted imaging effects relating to enhanced permeability and retention (EPR ). This specially designed ZUPEA probe with integrated diagnosis and treatment functionality provides new ideas and prospects for the use of rare-earth nanoparticles in the clinical treatment of tumors.
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Affiliation(s)
- Yanxing Wang
- Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, Shanxi 710071, China.
| | - Miao Feng
- Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, Shanxi 710071, China.
| | - Bi Lin
- Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, Shanxi 710071, China.
| | - Xiangrong Peng
- Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, Shanxi 710071, China.
| | - Zhan Wang
- Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, Shanxi 710071, China.
| | - Ruichan Lv
- Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, Shanxi 710071, China.
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Sharma A, Gaur A, Kumar V, Sharma N, Patil SA, Verma RK, Singh AK. Antimicrobial activity of synthetic antimicrobial peptides loaded in poly-Ɛ-caprolactone nanoparticles against mycobacteria and their functional synergy with rifampicin. Int J Pharm 2021; 608:121097. [PMID: 34534632 DOI: 10.1016/j.ijpharm.2021.121097] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 09/10/2021] [Accepted: 09/11/2021] [Indexed: 12/24/2022]
Abstract
Tuberculosis (TB) treatment has become a challenge because of the natural presence of multilayered cell wall rich in lipids which restrict antibiotic permeability within the bacteria. The development of mutations conferring resistance has aggravated the situation. Consequently, maximum pharmaceutical efforts are required to improve the treatment, and antimicrobial peptides (AMPs) with antimycobacterial activity can be exploited as a new treatment strategy against TB. The synergistic interaction between conventional antibiotics and AMPs has broadened its application landscape. To overcome peptide instability and bioavailability issues, encapsulation of these bioactive in biocompatible polymers was adopted. In this study, the effect of synthetic AMPs HHC-8 [KIWWWWRKR] and MM-10 [MLLKKLLKKM] encapsulated in poly (ε-caprolactone) nanoparticles (PCL-NPs) was evaluated against mycobacteria using REMA (Resazurin Microtiter Assay Plate) technique. PCL encapsulation allowed us to load the required amount of peptides, i.e. HHC-8 and MM-10, with an efficiency of ∼ 18.9 ± 5.24 and ∼ 21.1 ± 6.19 % respectively, and sphere size was around 376.5 ± 14.9 nm and 289.87 ± 17.98 nm for PCL-HHC-8-NPs and PCL-MM-10-NPs, respectively. Minimal degradation and sustained release of peptides from nanoparticles improved antimicrobial activity, decreasing the MIC50 from 75 µg/ml to 18.75 µg/ml against M. smegmatis and from 75 µg/ml to 9 µg/ml against M. tuberculosis, respectively. The combinatorial MIC assays of encapsulated AMP with rifampicin antibiotics against M. smegmatis showed synergism between AMP-PCL-NPs and antibiotics with fractional inhibitory concentrations (FICs) around ∼ 0.09. The combinations of AMP NPs also demonstrated synergy against the mycobacteria. Our findings suggest that enhanced efficacy is due to protection offered by AMPs encapsulation resulting in augmentation of membrane permeation by AMPs and enhanced accumulation of antibiotics within mycobacteria resulting in synergy. The study findings might assist in the preclinical development of AMP for the fight against TB.
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Affiliation(s)
- Ankur Sharma
- Pharmaceutical Nanotechnology Lab, Institute of Nano Science and Technology (INST), Phase-10, Sector-64, Mohali, Punjab 160062, India
| | - Aparna Gaur
- Experimental Animal Facility, ICMR-National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Tajganj, Agra 282004, India
| | - Vimal Kumar
- Experimental Animal Facility, ICMR-National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Tajganj, Agra 282004, India
| | - Neelesh Sharma
- Division of Veterinary Medicine, Faculty of Veterinary Sciences & A.H., Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu, R.S. Pura, Jammu, J&K, India
| | - Shripad A Patil
- Experimental Animal Facility, ICMR-National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Tajganj, Agra 282004, India
| | - Rahul Kumar Verma
- Pharmaceutical Nanotechnology Lab, Institute of Nano Science and Technology (INST), Phase-10, Sector-64, Mohali, Punjab 160062, India
| | - Amit Kumar Singh
- Experimental Animal Facility, ICMR-National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Tajganj, Agra 282004, India.
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Rossi I, Bettini R, Buttini F. Resistant Tuberculosis: the Latest Advancements of Second-line Antibiotic Inhalation Products. Curr Pharm Des 2021; 27:1436-1452. [PMID: 33480336 DOI: 10.2174/1381612827666210122143214] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/21/2020] [Accepted: 10/26/2020] [Indexed: 11/22/2022]
Abstract
Drug-resistant tuberculosis (TB) can be considered the man-made result of interrupted, erratic or inadequate TB therapy. As reported in WHO data, resistant Mycobacterium tuberculosis (Mtb) strains continue to constitute a public health crisis. Mtb is naturally able to survive host defence mechanisms and to resist most antibiotics currently available. Prolonged treatment regimens using the available first-line drugs give rise to poor patient compliance and a rapid evolution of strains resistant to rifampicin only or to both rifampicin and isoniazid (multi drug-resistant, MDR-TB). The accumulation of mutations may give rise to extensively drug-resistant strains (XDR-TB), i.e. strains with resistance also to fluoroquinolones and to the injectable aminoglycoside, which represent the second-line drugs. Direct lung delivery of anti-tubercular drugs, as an adjunct to conventional routes, provides high concentrations within the lungs, which are the intended target site of drug delivery, representing an interesting strategy to prevent or reduce the development of drug-resistant strains. The purpose of this paper is to describe and critically analyse the most recent and advanced results in the formulation development of WHO second-line drug inhalation products, with particular focus on dry powder formulation. Although some of these formulations have been developed for other lung infectious diseases (Pseudomonas aeruginosa, nontuberculous mycobacteria), they could be valuable to treat MDR-TB and XDR-TB.
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Affiliation(s)
- Irene Rossi
- Food and Drug Department, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Ruggero Bettini
- Food and Drug Department, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Francesca Buttini
- Food and Drug Department, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
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Yaqoubi S, Chan HK, Nokhodchi A, Dastmalchi S, Alizadeh AA, Barzegar-Jalali M, Adibkia K, Hamishehkar H. A quantitative approach to predicting lung deposition profiles of pharmaceutical powder aerosols. Int J Pharm 2021; 602:120568. [PMID: 33812969 DOI: 10.1016/j.ijpharm.2021.120568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/19/2021] [Accepted: 03/30/2021] [Indexed: 12/11/2022]
Abstract
Dry powder inhalers (DPI) are widely used systems for pulmonary delivery of therapeutics. The inhalation performance of DPIs is influenced by formulation features, inhaler device and inhalation pattern. The current review presents the affecting factors with great focus on powder characteristics which include particle size, shape, surface, density, hygroscopicity and crystallinity. The properties of a formulation are greatly influenced by a number of physicochemical factors of drug and added excipients. Since available particle engineering techniques result in particles with a set of modifications, it is difficult to distinguish the effect of an individual feature on powder deposition behavior. This necessitates developing a predictive model capable of describing all influential factors on dry powder inhaler delivery. Therefore, in the current study, a model was constructed to correlate the inhaler device properties, inhalation flow rate, particle characteristics and drug/excipient physicochemical properties with the resultant fine particle fraction. The r2 value of established correlation was 0.74 indicating 86% variability in FPF values is explained by the model with the mean absolute errors of 0.22 for the predicted values. The authors believe that this model is capable of predicting the lung deposition pattern of a formulation with an acceptable precision when the type of inhaler device, inhalation flow rate, physicochemical behavior of active and inactive ingredients and the particle characteristics of DPI formulations are considered.
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Affiliation(s)
- Shadi Yaqoubi
- Faculty of Pharmacy and Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hak-Kim Chan
- Advanced Drug Delivery Group, School of Pharmacy, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Ali Nokhodchi
- Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, UK
| | - Siavoush Dastmalchi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Akbar Alizadeh
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Barzegar-Jalali
- Pharmaceutical Analysis Research Center, and Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khosro Adibkia
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Niewolik D, Bednarczyk-Cwynar B, Ruszkowski P, Sosnowski TR, Jaszcz K. Bioactive Betulin and PEG Based Polyanhydrides for Use in Drug Delivery Systems. Int J Mol Sci 2021; 22:1090. [PMID: 33499242 PMCID: PMC7865682 DOI: 10.3390/ijms22031090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/17/2021] [Accepted: 01/19/2021] [Indexed: 11/22/2022] Open
Abstract
In the course of this study, a series of novel, biodegradable polyanhydrides based on betulin disuccinate and dicarboxylic derivatives of poly(ethylene glycol) were prepared by two-step polycondensation. These copolymers can be used as carriers in drug delivery systems, in the form of microspheres. Betulin and its derivatives exhibit a broad spectrum of biological activity, including cytotoxic activity, which makes them promising substances for use as therapeutic agents. Microspheres that were prepared from betulin based polyanhydrides show promising properties for use in application in drug delivery systems, including inhalation systems. The obtained copolymers release the active substance-betulin disuccinate-as a result of hydrolysis under physiological conditions. The use of a poly(ethylene glycol) derivative as a co-monomer increases the solubility and bioavailability of the obtained compounds. Microspheres with diameters in the range of 0.5-25 µm were prepared by emulsion solvent evaporation method and their physicochemical and aerodynamic properties were analyzed. The morphological characteristics of the microspheres depended on the presence of poly(ethylene glycol) (PEG) segment within the structure of polyanhydrides. The porosity of the particles depended on the amount and molecular weight of the PEG used and also on the speed of homogenization. The most porous particles were obtained from polyanhydrides containing 20% wt. of PEG 600 by using a homogenization speed of 18,000 rpm.
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Affiliation(s)
- Daria Niewolik
- Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, M. Strzody 9, 44-100 Gliwice, Poland;
| | - Barbara Bednarczyk-Cwynar
- Department of Organic Chemistry, Poznan University of Medical Science, Grunwaldzka 6, 60-780 Poznan, Poland;
| | - Piotr Ruszkowski
- Department of Pharmacology, Poznan University of Medical Science, Rokietnicka 5a, 60-806 Poznan, Poland;
| | - Tomasz R. Sosnowski
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland;
| | - Katarzyna Jaszcz
- Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, M. Strzody 9, 44-100 Gliwice, Poland;
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Sun M, Lee J, Chen Y, Hoshino K. Studies of nanoparticle delivery with in vitro bio-engineered microtissues. Bioact Mater 2020; 5:924-937. [PMID: 32637755 PMCID: PMC7330434 DOI: 10.1016/j.bioactmat.2020.06.016] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 06/12/2020] [Accepted: 06/22/2020] [Indexed: 01/04/2023] Open
Abstract
A variety of engineered nanoparticles, including lipid nanoparticles, polymer nanoparticles, gold nanoparticles, and biomimetic nanoparticles, have been studied as delivery vehicles for biomedical applications. When assessing the efficacy of a nanoparticle-based delivery system, in vitro testing with a model delivery system is crucial because it allows for real-time, in situ quantitative transport analysis, which is often difficult with in vivo animal models. The advent of tissue engineering has offered methods to create experimental models that can closely mimic the 3D microenvironment in the human body. This review paper overviews the types of nanoparticle vehicles, their application areas, and the design strategies to improve delivery efficiency, followed by the uses of engineered microtissues and methods of analysis. In particular, this review highlights studies on multicellular spheroids and other 3D tissue engineering approaches for cancer drug development. The use of bio-engineered tissues can potentially provide low-cost, high-throughput, and quantitative experimental platforms for the development of nanoparticle-based delivery systems.
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Affiliation(s)
- Mingze Sun
- Department of Biomedical Engineering, University of Connecticut, 260 Glenbrook Rd, Storrs, CT, 06269, USA
| | - Jinhyung Lee
- Department of Biomedical Engineering, University of Connecticut, 260 Glenbrook Rd, Storrs, CT, 06269, USA
| | - Yupeng Chen
- Department of Biomedical Engineering, University of Connecticut, 260 Glenbrook Rd, Storrs, CT, 06269, USA
| | - Kazunori Hoshino
- Department of Biomedical Engineering, University of Connecticut, 260 Glenbrook Rd, Storrs, CT, 06269, USA
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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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15
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Shiehzadeh F, Tafaghodi M, Dehghani ML, Mashhoori F, Fazly Bazzaz BS, Imenshahidi M. Preparation and Characterization of a Dry Powder Inhaler Composed of PLGA Large Porous Particles Encapsulating Gentamicin Sulfate. Adv Pharm Bull 2019; 9:255-261. [PMID: 31380251 PMCID: PMC6664120 DOI: 10.15171/apb.2019.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/27/2019] [Accepted: 05/04/2019] [Indexed: 01/13/2023] Open
Abstract
Purpose: Direct delivery of aminoglycosides to the lungs was under extensive evaluations during the last decades. Because of large particle size, low density and porous structure, large porous particles (LPPs) are versatile carriers for this purpose. In this study, poly (lactic-co-glycolic acid) (PLGA) LPPs encapsulating gentamicin sulfate were prepared and in vitro characteristics of their freeze-dried powder as a dry powder inhaler (DPI) were evaluated.
Methods: To prepare PLGA LPPs, a double emulsification-solvent evaporation method was optimized and gentamicin sulfate was post-loaded in the LPPs. in vitro characteristics including morphological features, thermal behavior, aerodynamic profile and cumulative drug release were evaluated by the scanning electron microscope (SEM), differential scanning calorimetry (DSC), next-generation cascade impactor (NGI) and Franz diffusion cell respectively.
Results: The obtained results revealed that the preparation method was capable to produce spherical large homogenous highly porous particles. 94% of gentamicin sulfate released from LPPs up to 30 minutes. Mass median aerodynamic diameter (MMAD) and fine particle fraction (FPF) were 4.9 µm and 39% respectively.
Conclusion: In this study, dry powder formulation composed of PLGA LPPs encapsulating gentamicin sulfate showed a promising in vitro behavior as a pulmonary delivery carrier. Improvements on the aerodynamic behavior and in vivo evaluations recommended for further developments.
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Affiliation(s)
- Farideh Shiehzadeh
- School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran.,Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Tafaghodi
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Majid-Laal Dehghani
- School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Faezeh Mashhoori
- School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bibi Sedigheh Fazly Bazzaz
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmaceutical Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Imenshahidi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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16
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Schoubben A, Ricci M, Giovagnoli S. Meeting the unmet: from traditional to cutting-edge techniques for poly lactide and poly lactide-co-glycolide microparticle manufacturing. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2019. [DOI: 10.1007/s40005-019-00446-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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17
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Sharma A, Vaghasiya K, Ray E, Gupta P, Kumar Singh A, Datta Gupta U, Kumar Verma R. Mycobactericidal activity of some micro-encapsulated synthetic Host Defense Peptides (HDP) by expediting the permeation of antibiotic: A new paradigm of drug delivery for tuberculosis. Int J Pharm 2019; 558:231-241. [DOI: 10.1016/j.ijpharm.2018.12.076] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 12/15/2018] [Accepted: 12/29/2018] [Indexed: 12/22/2022]
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18
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Miranda MS, Rodrigues MT, Domingues RMA, Torrado E, Reis RL, Pedrosa J, Gomes ME. Exploring inhalable polymeric dry powders for anti-tuberculosis drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:1090-1103. [PMID: 30274040 DOI: 10.1016/j.msec.2018.09.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 08/29/2018] [Accepted: 09/03/2018] [Indexed: 12/27/2022]
Abstract
The growing interest on polymeric delivery systems for pulmonary administration of drugs anticipates a more direct and efficient treatment of diseases such as tuberculosis (TB) that uses the pulmonary route as the natural route of infection. Polymeric microparticles or nano-in-microparticles offer target delivery of drugs to the lungs and the potential to control and sustain drug release within TB infected macrophages improving the efficiency of the anti-TB treatment and reducing side effects. In a dry powder form these inhalable delivery systems have increased stability and prolonged storage time without requiring refrigeration, besides being cost-effective and patient convenient. Thus, this review aims to compile the recent innovations of inhalable polymeric dry powder systems for the delivery of anti-TB drugs exploring the methods of production, aerodynamic characterization and the efficacy of targeted drug delivery systems using in vitro and in vivo models of the disease. Advanced knowledge and promising outcomes of these systems are anticipated to simplify and revolutionize the pulmonary drug delivery and to contribute towards more effective anti-TB treatments.
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Affiliation(s)
- Margarida S Miranda
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
| | - Márcia T Rodrigues
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
| | - Rui M A Domingues
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
| | - Egídio Torrado
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal; Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
| | - Rui L Reis
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
| | - Jorge Pedrosa
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal; Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
| | - Manuela E Gomes
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal.
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19
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Benvenutti DF, Bresolin TMB, Corrêa R, Giovagnoli S, Vivani R, Ricci M. A Novel Stabilizing Approach to Improve the Manufacturing of Biodegradable Microparticles Entrapping Plasticizing Active Molecules: the Case of 4-Methoxychalcone. J Pharm Innov 2018. [DOI: 10.1007/s12247-018-9346-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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20
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Casagrande S, Tiribuzi R, Cassetti E, Selmin F, Gervasi GL, Barberini L, Freddolini M, Ricci M, Schoubben A, Cerulli GG, Blasi P. Biodegradable composite porous poly(dl-lactide-co-glycolide) scaffold supports mesenchymal stem cell differentiation and calcium phosphate deposition. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:219-229. [DOI: 10.1080/21691401.2017.1417866] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Serena Casagrande
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Perugia, Perugia, Italy
| | - Roberto Tiribuzi
- Laboratorio di Biologia e Medicina Rigenerativa, Istituto di Ricerca Traslazionale per l’Apparato Locomotore Nicola Cerulli-LPMRI, Arezzo, Italy
| | - Emanuele Cassetti
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Perugia, Perugia, Italy
| | - Francesca Selmin
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy
| | - Gian Luca Gervasi
- Laboratorio di Biologia e Medicina Rigenerativa, Istituto di Ricerca Traslazionale per l’Apparato Locomotore Nicola Cerulli-LPMRI, Arezzo, Italy
| | - Lanfranco Barberini
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Perugia, Italy
| | - Marco Freddolini
- Laboratorio di Biologia e Medicina Rigenerativa, Istituto di Ricerca Traslazionale per l’Apparato Locomotore Nicola Cerulli-LPMRI, Arezzo, Italy
| | - Maurizio Ricci
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Perugia, Perugia, Italy
| | - Aurélie Schoubben
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Perugia, Perugia, Italy
| | - Giuliano G. Cerulli
- Laboratorio di Biologia e Medicina Rigenerativa, Istituto di Ricerca Traslazionale per l’Apparato Locomotore Nicola Cerulli-LPMRI, Arezzo, Italy
- Istituto di Clinica Ortopedica e Traumatologica, Università Cattolica del Sacro Cuore-Policlinico Universitario Agostino Gemelli, Roma, Italy
| | - Paolo Blasi
- Scuola di Scienze del Farmaco e dei Prodotti della Salute, Università di Camerino, Camerino, Italy
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21
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Szczeblinska J, Fijalkowski K, Kohn J, El Fray M. Antibiotic loaded microspheres as antimicrobial delivery systems for medical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:69-75. [DOI: 10.1016/j.msec.2017.03.215] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Revised: 01/03/2017] [Indexed: 01/17/2023]
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22
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Mustafa S, Devi VK, Pai RS. Comparative study of kanamycin sulphate microparticles and nanoparticles for intramuscular administration: preparation in vitro release and preliminary in vivo evaluation. J Microencapsul 2016; 33:679-688. [PMID: 27733086 DOI: 10.1080/02652048.2016.1248511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Kanamycin sulphate (KS) is a Mycobacterium tuberculosis protein synthesis inhibitor. KS is polycationic, a property responsible for KS poor oral absorption half-life (2.5 h) and rapid renal clearance, which results in serious nephrotoxicity/ototoxicity. The current study aimed to develop KS-loaded PLGA vitamin-E-TPGS microparticles (MPs) and nanoparticles (NPs) to reduce the dosing frequency and dose-related adverse effect. In vitro release was sustained up to 10 days for KS PLGA-TPGS MPs and 13 days for KS PLGA-TPGS NPs in phosphate-buffered saline (PBS) pH 7.4. The in vivo pharmacokinetic test in Wistar rats showed that the AUC0-∞ of KS PLGA-TPGS NPs (280.58 μg/mL*min) was about 1.62-fold higher than that of KS PLGA-TPGS MPs (172.30 μg/mL*min). Further, in vivo protein-binding assay ascribed 1.20-fold increase in the uptake of KS PLGA-TPGS NPs through the alveolar macrophage (AM). The studies, therefore, could provide another useful tool for successful development of KS MPs and NPs.
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Affiliation(s)
- Sanaul Mustafa
- a Pharmaceutics Division, Faculty of Pharmacy , Al-Ameen College of Pharmacy , Bangalore , Karnataka , India
| | - V Kusum Devi
- a Pharmaceutics Division, Faculty of Pharmacy , Al-Ameen College of Pharmacy , Bangalore , Karnataka , India
| | - Roopa S Pai
- a Pharmaceutics Division, Faculty of Pharmacy , Al-Ameen College of Pharmacy , Bangalore , Karnataka , India
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23
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Parumasivam T, Chang RYK, Abdelghany S, Ye TT, Britton WJ, Chan HK. Dry powder inhalable formulations for anti-tubercular therapy. Adv Drug Deliv Rev 2016; 102:83-101. [PMID: 27212477 DOI: 10.1016/j.addr.2016.05.011] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 05/13/2016] [Accepted: 05/14/2016] [Indexed: 12/31/2022]
Abstract
Tuberculosis (TB) is an intracellular infectious disease caused by the airborne bacterium, Mycobacterium tuberculosis. Despite considerable research efforts, the treatment of TB continues to be a great challenge in part due to the requirement of prolonged therapy with multiple high-dose drugs and associated side effects. The delivery of pharmacological agents directly to the respiratory system, following the natural route of infection, represents a logical therapeutic approach for treatment or vaccination against TB. Pulmonary delivery is non-invasive, avoids first-pass metabolism in the liver and enables targeting of therapeutic agents to the infection site. Inhaled delivery also potentially reduces the dose requirement and the accompanying side effects. Dry powder is a stable formulation of drug that can be stored without refrigeration compared to liquids and suspensions. The dry powder inhalers are easy to use and suitable for high-dose formulations. This review focuses on the current innovations of inhalable dry powder formulations of drug and vaccine delivery for TB, including the powder production method, preclinical and clinical evaluations of inhaled dry powder over the last decade. Finally, the risks associated with pulmonary therapy are addressed. A novel dry powder formulation with high percentages of respirable particles coupled with a cost effective inhaler device is an appealing platform for TB drug delivery.
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Affiliation(s)
- Thaigarajan Parumasivam
- Advanced Drug Delivery Group, Faculty of Pharmacy, The University of Sydney, NSW 2006, Australia
| | - Rachel Yoon Kyung Chang
- Advanced Drug Delivery Group, Faculty of Pharmacy, The University of Sydney, NSW 2006, Australia
| | - Sharif Abdelghany
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, University of Jordan, Amman 1192, Jordan
| | - Tian Tian Ye
- Advanced Drug Delivery Group, Faculty of Pharmacy, The University of Sydney, NSW 2006, Australia
| | - Warwick John Britton
- Tuberculosis Research Program, Centenary Institute, The University of Sydney, NSW 2006, Australia; Infectious Diseases and Immunology, Sydney Medical School, The University of Sydney, NSW 2006, Australia
| | - Hak-Kim Chan
- Advanced Drug Delivery Group, Faculty of Pharmacy, The University of Sydney, NSW 2006, Australia.
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Rajabnezhad S, Casettari L, Lam JK, Nomani A, Torkamani MR, Palmieri GF, Rajabnejad MR, Darbandi MA. Pulmonary delivery of rifampicin microspheres using lower generation polyamidoamine dendrimers as a carrier. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2015.12.037] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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25
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Yang H, Xie Y, Hao G, Cai W, Guo X. Preparation of porous alumina microspheres via an oil-in-water emulsion method accompanied by a sol–gel process. NEW J CHEM 2016. [DOI: 10.1039/c5nj02509e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Porous alumina microspheres prepared via a facile template-free approach followed by heat-treatment, exhibiting a three-dimensional interconnected structure.
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Affiliation(s)
- Hui Yang
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Yuan Xie
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Guisong Hao
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Weiwei Cai
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Xingzhong Guo
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
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26
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Cambronero-Rojas A, Torres-Vergara P, Godoy R, von Plessing C, Sepúlveda J, Gómez-Gaete C. Capreomycin oleate microparticles for intramuscular administration: Preparation, in vitro release and preliminary in vivo evaluation. J Control Release 2015; 209:229-37. [DOI: 10.1016/j.jconrel.2015.05.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 04/24/2015] [Accepted: 05/03/2015] [Indexed: 01/24/2023]
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Fenaroli F, Westmoreland D, Benjaminsen J, Kolstad T, Skjeldal FM, Meijer AH, van der Vaart M, Ulanova L, Roos N, Nyström B, Hildahl J, Griffiths G. Nanoparticles as drug delivery system against tuberculosis in zebrafish embryos: direct visualization and treatment. ACS NANO 2014; 8:7014-7026. [PMID: 24945994 DOI: 10.1021/nn5019126] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Nanoparticles (NPs) enclosing antibiotics have provided promising therapy against Mycobacterium tuberculosis (Mtb) in different mammalian models. However, the NPs were not visualized in any of these animal studies. Here, we introduce the transparent zebrafish embryo as a system for noninvasive, simultaneous imaging of fluorescent NPs and the fish tuberculosis (TB) agent Mycobacterium marinum (Mm). The study was facilitated by the use of transgenic lines of macrophages, neutrophils, and endothelial cells expressing fluorescent markers readily visible in the live vertebrate. Intravenous injection of Mm led to phagocytosis by blood macrophages. These remained within the vasculature until 3 days postinfection where they started to extravasate and form aggregates of infected cells. Correlative light/electron microscopy revealed that these granuloma-like structures had significant access to the vasculature. Injection of NPs induced rapid uptake by both infected and uninfected macrophages, the latter being actively recruited to the site of infection, thereby providing an efficient targeting into granulomas. Rifampicin-loaded NPs significantly improved embryo survival and lowered bacterial load, as shown by quantitative fluorescence analysis. Our results argue that zebrafish embryos offer a powerful system for monitoring NPs in vivo and rationalize why NP therapy was so effective against Mtb in earlier studies; bacteria and NPs share the same cellular niche.
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Affiliation(s)
- Federico Fenaroli
- Department of Biosciences, University of Oslo , Blindernveien 31, 0371 Oslo, Norway
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Development of a highly biocompatible antituberculosis nanodelivery formulation based on para-aminosalicylic acid-zinc layered hydroxide nanocomposites. ScientificWorldJournal 2014; 2014:401460. [PMID: 25050392 PMCID: PMC4094859 DOI: 10.1155/2014/401460] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 05/13/2014] [Indexed: 12/01/2022] Open
Abstract
Tuberculosis is a lethal epidemic, difficult to control disease, claiming thousands of lives every year. We have developed a nanodelivery formulation based on para-aminosalicylic acid (PAS) and zinc layered hydroxide using zinc nitrate salt as a precursor. The developed formulation has a fourfold higher efficacy of PAS against mycobacterium tuberculosis with a minimum inhibitory concentration (MIC) found to be at 1.40 μg/mL compared to the free drug PAS with a MIC of 5.0 μg/mL. The newly developed formulation was also found active against Gram-positive bacteria, Gram-negative bacteria, and Candida albicans. The formulation was also found to be biocompatible with human normal lung cells MRC-5 and mouse fibroblast cells-3T3. The in vitro release of PAS from the formulation was found to be sustained in a human body simulated phosphate buffer saline (PBS) solution at pH values of 7.4 and 4.8. Most importantly the nanocomposite prepared using zinc nitrate salt was advantageous in terms of yield and free from toxic zinc oxide contamination and had higher biocompatibility compared to one prepared using a zinc oxide precursor. In summary, these promising in vitro results are highly encouraging for the continued investigation of para-aminosalicylic acid and zinc layered hydroxide nanocomposites in vivo and eventual preclinical studies.
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Silicon microfluidic flow focusing devices for the production of size-controlled PLGA based drug loaded microparticles. Int J Pharm 2014; 467:60-9. [DOI: 10.1016/j.ijpharm.2014.03.051] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 03/24/2014] [Accepted: 03/26/2014] [Indexed: 01/19/2023]
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Takami T, Murakami Y. Unexpected and successful "one-step" formation of porous polymeric particles only by mixing organic solvent and water under "low-energy-input" conditions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:3329-3336. [PMID: 24601639 DOI: 10.1021/la500324j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We found that porous particles were unexpectedly obtained in a "one-step" manner only by mixing an organic solvent and water under "low-energy-input" (i.e., low-homogenization-rate) conditions. This phenomenon was attributable to the unexpected formation of the spontaneously formed water-in-oil (w/o) emulsions in the droplets of o/w emulsions. The unexpected formation resulted in the successful formation of water-in-oil-in-water (w/o/w) emulsions instead of o/w emulsions, although the mixed solution containing both an organic solvent and water were simply emulsified in the presence of block copolymers. The present study clarifies the effects of the various preparation conditions on the morphology of unexpected w/o/w emulsions and resulting particles. The porous particles are expected to be suitable drug carriers for pulmonary delivery. The results obtained in the present study show that a newly developed one-step emulsification can be a powerful and facile technique for preparing porous polymeric particles.
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Affiliation(s)
- Taku Takami
- Department of Organic and Polymer Materials Chemistry, Faculty of Engineering, Tokyo University of Agriculture and Technology , 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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Cocks E, Alpar O, Somavarapu S, Greenleaf D. Impact of surfactant selection on the formulation and characterization of microparticles for pulmonary drug delivery. Drug Dev Ind Pharm 2014; 41:522-8. [PMID: 24650006 DOI: 10.3109/03639045.2014.884117] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The effect of suspension stabilizers, internal aqueous phase volume and polymer amount were investigated for the production of protein loaded poly(d,l lactide-co-glycolide) (PLGA) microparticles suitable for pulmonary drug delivery. PLGA microparticles were produced adopting water-in-oil-in-water (W/O/W) solvent evaporation technique and were investigated for surface morphology, particle size, encapsulation efficiency (EE%) and in-vitro release profile. Porous surface morphologies with a narrow size distribution were observed when employing 0.5 ml internal aqueous phase; 23.04 µm (± 0.98), 15.05 µm (± 0.27) and 22.89 µm (±0.41) for PVA, Tween 80 and oleic acid. Porous microparticles exhibited increased size and reduction in EE% with increasing internal aqueous phase, with non-porous microparticles produced when adopting 2.0 ml internal aqueous phase. The selection of stabilizer influences the size of the pores formed thus offers potential for the aerodynamic properties of the microparticles to be manipulated to achieve suitable aerosolization characteristics for pulmonary delivery of proteins.
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Targeted oral delivery of BmpB vaccine using porous PLGA microparticles coated with M cell homing peptide-coupled chitosan. Biomaterials 2014; 35:2365-73. [DOI: 10.1016/j.biomaterials.2013.11.073] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 11/23/2013] [Indexed: 01/17/2023]
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Ngoc NTQ, Chang L, Jia X, Lau R. Experimental investigation of design parameters on dry powder inhaler performance. Int J Pharm 2013; 457:92-100. [DOI: 10.1016/j.ijpharm.2013.08.072] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 08/20/2013] [Accepted: 08/26/2013] [Indexed: 11/27/2022]
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Arya P, Pathak K. Assessing the viability of microsponges as gastro retentive drug delivery system of curcumin: optimization and pharmacokinetics. Int J Pharm 2013; 460:1-12. [PMID: 24184218 DOI: 10.1016/j.ijpharm.2013.10.045] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Revised: 10/22/2013] [Accepted: 10/25/2013] [Indexed: 01/12/2023]
Abstract
The work was aimed to validate the gastroretentive potential of microsponges via optimization of targeted floating curcumin microsponges for improved site specific absorption for gastric cancer Modified quasi emulsion solvent diffusion method was used to formulate microsponges using 3(2) full factorial design. The effect of different levels of ethyl cellulose and polyvinyl alcohol concentration, selected as independent variables was determined on the % entrapment efficiency, % buoyancy and % cumulative drug release. Modified rosette rise apparatus was used for in vitro release and the release data best fitted Higuchi's model and mechanism of drug release was diffusion (n). The optimized formulation (MS5) demonstrated favourable % entrapment efficiency (90.7 ± 1.7), % buoyancy (82.0 ± 2.0) and % cumulative drug release (85.2 ± 1.07) with maximum desirability factor of 0.816. SEM revealed spherical and porous microsponges. DSC confirmed molecular dispersion of the drug in the microsponges polymeric matrix. DRIFT revealed no chemical interaction between the drug and polymer used. The in vitro permeation of curcumin through gastric mucin gel layer affirmed the capability of microsponges to deliver drug across mucin r and reach the target site to treat gastric cancer. Anticancer oral dose of microsponges was calculated as 50mg by cytotoxicity assay in human cancer cell line KB. The pharmacokinetic evaluation of MS5 in rabbits revealed 10-fold increase in bioavailability as compared to native curcumin, demonstrated the superiority of microsponges over native curcumin as gastro retentive drug delivery system. This study presents a new approach based on floating ability of microsponges for treatment of gastric cancer.
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Affiliation(s)
- Priyanka Arya
- Department of Pharmaceutics, Rajiv Academy for Pharmacy, NH#2, P.O. Chattikara, Mathura 281001, Uttar Pradesh, India
| | - Kamla Pathak
- Department of Pharmaceutics, Rajiv Academy for Pharmacy, NH#2, P.O. Chattikara, Mathura 281001, Uttar Pradesh, India.
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Giovagnoli S, Marenzoni ML, Nocchetti M, Santi C, Blasi P, Schoubben A, Ricci M. Synthesis, characterization and in vitro extracellular and intracellular activity against Mycobacterium tuberculosis infection of new second-line antitubercular drug-palladium complexes. ACTA ACUST UNITED AC 2013; 66:106-21. [PMID: 24341950 DOI: 10.1111/jphp.12162] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2013] [Accepted: 09/16/2013] [Indexed: 02/01/2023]
Abstract
OBJECTIVES The aim of this work was to characterize novel palladium (Pd) complexes with second-line antitubercular drugs, namely capreomycin (C), kanamycin (K) and ofloxacin (Ofx), and to address the in vitro extracellular and intracellular activity against Mycobacterium tuberculosis infection. METHODS Synthesis reaction kinetics and complex properties were assessed. Kf was calculated from the transition state quasi-equilibrium approximation and Arrhenius plot. The complexes were characterized for qualitative solubility, stoichiometry, powder size and morphology, element analysis, and thermal behaviour. Structural analyses were performed by Fourier transform infrared spectroscopy and nuclear magnetic resonance. Activity was evaluated against H37Ra M. tuberculosis strain and in infected THP-1 cells, and compared with that of the parent drugs. KEY FINDINGS The complexes showed log Kf of 6 for CPd and OfxPd, and 10 for KPd indicating good stability. Stoichiometry of 1:1, 2: 3 and 1:3 resulted for OfxPd, KPd, and CPd. OfxPd structure matched that in literature, while K and C had more complex structures with possible multiple coexisting species. The complexes had extracellular activity comparable with drugs and an improved efficacy against intracellular infection of M. tuberculosis. CONCLUSIONS The novel anti-tuberculosis (TB) complexes had promising properties, and extracellular and intracellular activity, which makes them potential tools for intracellular targeting of pulmonary TB.
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Feng R, Zhang Z, Li Z, Huang G. Preparation andin vitroevaluation of etoposide-loaded PLGA microspheres for pulmonary drug delivery. Drug Deliv 2013; 21:185-92. [DOI: 10.3109/10717544.2013.840813] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Chen AZ, Yang YM, Wang SB, Wang GY, Liu YG, Sun QQ. Preparation of methotrexate-loaded, large, highly-porous PLLA microspheres by a high-voltage electrostatic antisolvent process. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:1917-1925. [PMID: 23661255 DOI: 10.1007/s10856-013-4942-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Accepted: 04/29/2013] [Indexed: 06/02/2023]
Abstract
A high-voltage (10 kV) electrostatic antisolvent process was used to prepare methotrexate (MTX)-loaded, large, highly-porous poly-L-lactide (PLLA) microspheres. MTX solution in dimethyl sulfoxide (DMSO) and PLLA solution in dichloromethane (DCM) were homogeneously mixed, and then ammonium bicarbonate (AB) aqueous solution was added. The mixed solution was emulsified by ultrasonication with Pluronic F127 (PF127) as an emulsion stabilizer. The emulsion was electrosprayed by the specific high-voltage apparatus and dropped into a 100 mL of ethanol, which acted as an antisolvent for the solute and extracted DMSO and DCM, causing the co-precipitation of PLLA and MTX, thus forming microspheres with AB aqueous micro-droplets uniformly inlaid. The obtained MTX-PLLA microspheres were subsequently lyophilized to obtain large, highly-porous MTX-PLLA microspheres, which exhibited an identifiable spherical shape and a rough surface furnished with open pores, with a mean particle size of 25.0 μm, mass median aerodynamic diameter of 3.1 ± 0.2 μm, fine-particle fraction of 57.1 ± 1.6 %, and porosity of 81.8 %; furthermore, they offered a sustained release of MTX. X-ray diffraction and Fourier transform-infrared spectra revealed that no crystallinity or alteration of chemical structure occurred during the high-voltage electrostatic antisolvent process, which in this study was proved to have great potential for preparing highly-porous drug-loaded polymer microspheres for use in pulmonary drug delivery.
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Affiliation(s)
- Ai-Zheng Chen
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China.
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38
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Gaspar MC, Couet W, Olivier JC, Pais AACC, Sousa JJS. Pseudomonas aeruginosa infection in cystic fibrosis lung disease and new perspectives of treatment: a review. Eur J Clin Microbiol Infect Dis 2013; 32:1231-52. [DOI: 10.1007/s10096-013-1876-y] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Accepted: 04/01/2013] [Indexed: 12/20/2022]
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Capreomycin supergenerics for pulmonary tuberculosis treatment: Preparation, in vitro, and in vivo characterization. Eur J Pharm Biopharm 2013; 83:388-95. [DOI: 10.1016/j.ejpb.2012.11.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Revised: 10/29/2012] [Accepted: 11/05/2012] [Indexed: 12/14/2022]
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Stegemann S, Kopp S, Borchard G, Shah V, Senel S, Dubey R, Urbanetz N, Cittero M, Schoubben A, Hippchen C, Cade D, Fuglsang A, Morais J, Borgström L, Farshi F, Seyfang KH, Hermann R, van de Putte A, Klebovich I, Hincal A. Developing and advancing dry powder inhalation towards enhanced therapeutics. Eur J Pharm Sci 2013; 48:181-94. [DOI: 10.1016/j.ejps.2012.10.021] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2012] [Revised: 10/22/2012] [Accepted: 10/26/2012] [Indexed: 01/04/2023]
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41
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Hanif SNM, Garcia-Contreras L. Pharmaceutical aerosols for the treatment and prevention of tuberculosis. Front Cell Infect Microbiol 2012; 2:118. [PMID: 22973562 PMCID: PMC3435512 DOI: 10.3389/fcimb.2012.00118] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Accepted: 08/23/2012] [Indexed: 01/13/2023] Open
Abstract
Historically, pharmaceutical aerosols have been employed for the treatment of obstructive airway diseases, such as asthma and chronic obstructive pulmonary disease, but in the past decades their use has been expanded to treat lung infections associated with cystic fibrosis and other respiratory diseases. Tuberculosis (TB) is acquired after inhalation of aerosol droplets containing the bacilli from the cough of infected individuals. Even though TB affects other organs, the lungs are the primary site of infection, which makes the pulmonary route an ideal alternative route to administer vaccines or drug treatments. Optimization of formulations and delivery systems for anti-TB vaccines and drugs, as well as the proper selection of the animal model to evaluate those is of paramount importance if novel vaccines or drug treatments are to be successful. Pharmaceutical aerosols for patient use are generated from metered dose inhalers, nebulizers, and dry powder inhalers (DPIs). In addition to the advantages of providing more efficient delivery of the drug, low cost, and portability, pharmaceutical dry powder aerosols are more stable than inhalable liquid dosage forms and do not require refrigeration. Methods to manufacture dry powders in respirable sizes include micronization, spray drying, and other proprietary technologies. Inhalable dry powders are characterized in terms of their drug content, particle size, and dispersibility to ensure deposition in the appropriate lung region and effective aerosolization from the device. These methods will be illustrated as they were applied for the manufacture and characterization of powders containing anti-tubercular agents and vaccines for pulmonary administration. The influence of formulation, selection of animal model, method of aerosol generation, and administration on the efficacy demonstrated in a given study will be illustrated by the evaluation of pharmaceutical aerosols of anti-TB drugs and vaccines in guinea pigs by our group.
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Affiliation(s)
- Shumaila N M Hanif
- Department of Pharmaceutical Sciences, Collage of Pharmacy, University of Oklahoma Health Sciences Center Oklahoma City, OK, USA
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Srivastava R, Pathak K. Microsponges: a futuristic approach for oral drug delivery. Expert Opin Drug Deliv 2012; 9:863-78. [PMID: 22663167 DOI: 10.1517/17425247.2012.693072] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Microparticulate drug delivery systems have, due to their advantages, guided researchers across the globe to explore them as drug carriers. This has, sequentially, led to the development of microsponges in 1988. These porous microspheres were exclusively designed for chronotherapeutic topical drug delivery but attempts to utilize them for oral, pulmonary and parenteral drug delivery were also made. Researchers have extensively studied their properties and characteristics affecting the drug release and loading. Various advances were made with this carrier particle resulting in the development of various novel development techniques and carrier particles. AREAS COVERED This review deals with the considerations of the drug material to be entrapped in microsponges, pharmaceutical considerations for fabrication of microsponges, their potential for oral drug delivery, clinical perspectives and also provides an insight on the recent advances made in this field and future prospect. EXPERT OPINION Clinical studies show that these carriers can increase drug efficacy. Due to their potential advantages over other carrier particles, microsponges form a prospective platform for the oral delivery of pharmaceuticals and biopharmaceuticals. Although these carriers have several advantages, they too possess some drawbacks which limit their commercialization for oral application.
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Affiliation(s)
- Rishabh Srivastava
- Department of Pharmaceutics, Rajiv Academy for Pharmacy, Mathura, India.
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Development of a spray-drying method for the formulation of respirable microparticles containing ofloxacin-palladium complex. Int J Pharm 2012; 440:273-82. [PMID: 22659124 DOI: 10.1016/j.ijpharm.2012.05.045] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2012] [Revised: 05/19/2012] [Accepted: 05/21/2012] [Indexed: 11/23/2022]
Abstract
The purpose of this study was to produce low-releasing spray-dried polymeric microparticles (MP) useful to target alveolar macrophages in tuberculosis (TB) inhalation therapy. Ofloxacin (Ofx) was encapsulated as ofloxacin-palladium (Ofx-Pd) complex into poly DL-lactide (PLA) MP by spray-drying. Ofx-Pd was prepared according to a method previously reported. A D-optimal design was employed to optimize drug content (DC), aerodynamic diameter (d(ae)) and span. d(ae) was calculated coupling tap-density to particle size analysis. The MP were characterized by SEM, UV spectrophotometry, and DSC. In vitro drug release was performed in comparison to Ofx loaded PLA MP. The Ofx-Pd complex formed spontaneously with a 1:1 stoichiometry. Inlet temperature, drug loading and polymer concentration resulted the most influential. Optimal MP had span of 0.9, a round shape, d(ae) of 2.5 μm, and DC of 30% (w/w). DSC and SEM analyses correlated with particle size. The optimized MP formulation showed a very low release at pH 7.4 compared to spray-dried Ofx loaded MP, the release increased slightly at lower pHs. Potentially inhalable MP were obtained by an optimized spray-drying process. The very low initial drug release at physiologic pH could be useful to target alveolar macrophages and to avoid systemic exposure.
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Giri TK, Choudhary C, Ajazuddin, Alexander A, Badwaik H, Tripathi DK. Prospects of pharmaceuticals and biopharmaceuticals loaded microparticles prepared by double emulsion technique for controlled delivery. Saudi Pharm J 2012; 21:125-41. [PMID: 23960828 DOI: 10.1016/j.jsps.2012.05.009] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Accepted: 05/18/2012] [Indexed: 10/28/2022] Open
Abstract
Several methods and techniques are potentially useful for the preparation of microparticles in the field of controlled drug delivery. The type and the size of the microparticles, the entrapment, release characteristics and stability of drug in microparticles in the formulations are dependent on the method used. One of the most common methods of preparing microparticles is the single emulsion technique. Poorly soluble, lipophilic drugs are successfully retained within the microparticles prepared by this method. However, the encapsulation of highly water soluble compounds including protein and peptides presents formidable challenges to the researchers. The successful encapsulation of such compounds requires high drug loading in the microparticles, prevention of protein and peptide degradation by the encapsulation method involved and predictable release, both rate and extent, of the drug compound from the microparticles. The above mentioned problems can be overcome by using the double emulsion technique, alternatively called as multiple emulsion technique. Aiming to achieve this various techniques have been examined to prepare stable formulations utilizing w/o/w, s/o/w, w/o/o, and s/o/o type double emulsion methods. This article reviews the current state of the art in double emulsion based technologies for the preparation of microparticles including the investigation of various classes of substances that are pharmaceutically and biopharmaceutically active.
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Affiliation(s)
- Tapan Kumar Giri
- Rungta College of Pharmaceutical Sciences and Research, Kohka Road, Kurud, Bhilai 490024, India
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Ungaro F, d' Angelo I, Miro A, La Rotonda MI, Quaglia F. Engineered PLGA nano- and micro-carriers for pulmonary delivery: challenges and promises. J Pharm Pharmacol 2012; 64:1217-35. [DOI: 10.1111/j.2042-7158.2012.01486.x] [Citation(s) in RCA: 128] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Abstract
Objectives
The aim of this review is to summarize the current state-of-the-art in poly(lactic-co-glycolic acid) (PLGA) carriers for inhalation. It presents the rational of use, the potential and the recent advances in developing PLGA microparticles and nanoparticles for pulmonary delivery. The most promising particle engineering strategies are discussed, highlighting the advantages along with the major challenges for researchers working in this field.
Key findings
Biodegradable polymer carriers, such as PLGA particles, may permit effective protection and long-term delivery of the inhaled drug and, when adequately engineered, its efficient transport to the target. The carrier can be designed for inhalation on the basis of several strategies through the adequate combination of available particle technologies and excipients. In so doing, the properties of PLGA particles can be finely tuned at micro-size and nano-size level to fulfill specific therapeutic needs. This means not only to realize optimal in vitro/in vivo lung deposition of the formulation, which is still crucial, but also to control the fate of the drug in the lung after particle landing.
Summary
Although many challenges still exist, PLGA carriers may be highly beneficial and present a new scenario for patients suffering from chronic lung diseases and for pharmaceutical companies working to develop novel inhaled products.
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Affiliation(s)
- Francesca Ungaro
- Department of Pharmaceutical and Toxicological Chemistry, University of Naples Federico II, Via D. Montesano, Naples, Italy
| | - Ivana d' Angelo
- Department of Pharmaceutical and Toxicological Chemistry, University of Naples Federico II, Via D. Montesano, Naples, Italy
| | - Agnese Miro
- Department of Pharmaceutical and Toxicological Chemistry, University of Naples Federico II, Via D. Montesano, Naples, Italy
| | - Maria I La Rotonda
- Department of Pharmaceutical and Toxicological Chemistry, University of Naples Federico II, Via D. Montesano, Naples, Italy
| | - Fabiana Quaglia
- Department of Pharmaceutical and Toxicological Chemistry, University of Naples Federico II, Via D. Montesano, Naples, Italy
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Zhang X, Liu L, Zhang X, Ma K, Rao Y, Zhao Q, Li F. Analytical methods for brain targeted delivery system in vivo: perspectives on imaging modalities and microdialysis. J Pharm Biomed Anal 2011; 59:1-12. [PMID: 22088476 DOI: 10.1016/j.jpba.2011.08.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Revised: 08/29/2011] [Accepted: 08/29/2011] [Indexed: 01/05/2023]
Abstract
Since the introduction of microdialysis in 1974, the semi-invasive analytical method has grown exponentially. Microdialysis is one of the most potential analysis technologies of pharmacological drug delivery to the brain. In recent decades, analysis of chemicals targeting the brain has led to many improvements. It seems likely that fluorescence imaging was limited to ex vivo and in vitro applications with the exception of several intravital microscopy and photographic imaging approaches. X-ray computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET) have been commonly utilized for visualization of distribution and therapeutic effects of drugs. The efficient analytical methods for studies of brain-targeting delivery system is a major challenge in detecting the disposition as well as the variances of the factors that regulate the substances delivery into the brain. In this review, we highlight some of the ongoing trends in imaging modalities and the most recent developments in the field of microdialysis of live animals and present insights into exploiting brain disease for therapeutic and diagnostics purpose.
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Affiliation(s)
- Xingguo Zhang
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310053, China
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Inhaled therapies for tuberculosis and the relevance of activation of lung macrophages by particulate drug-delivery systems. Ther Deliv 2011; 2:753-68. [DOI: 10.4155/tde.11.34] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Pathogenic strains of Mycobacterium tuberculosis (Mtb) induce ‘alternative activation’ of lung macrophages that they colonize, in order to create conditions that promote the establishment and progression of infection. There is some evidence to indicate that such macrophages may be rescued from alternative activation by inhalable microparticles containing a variety of drugs. This review summarizes the experience of various groups of researchers, relating to observations of induction of a number of classical macrophage activation pathways. Restoration of a ‘respiratory burst’ and upregulation of reactive oxygen species and nitrogen intermediates through the phagocyte oxidase and nitric oxide synthetase enzyme systems; induction of proinflammatory macrophage cytokines; and finally induction of apoptosis rather than necrosis of the infected macrophage are discussed. It is suggested that there is scope to co-opt host responses in the management of tuberculosis, through the route of pulmonary drug delivery.
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Lee J, Oh YJ, Lee SK, Lee KY. Facile control of porous structures of polymer microspheres using an osmotic agent for pulmonary delivery. J Control Release 2010; 146:61-7. [DOI: 10.1016/j.jconrel.2010.05.026] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Revised: 04/28/2010] [Accepted: 05/20/2010] [Indexed: 10/19/2022]
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49
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Zhang Y, Wang X, Lin X, Liu X, Tian B, Tang X. High azithromycin loading powders for inhalation and their in vivo evaluation in rats. Int J Pharm 2010; 395:205-14. [DOI: 10.1016/j.ijpharm.2010.05.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2010] [Revised: 05/14/2010] [Accepted: 05/27/2010] [Indexed: 10/19/2022]
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50
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Schoubben A, Blasi P, Giovagnoli S, Ricci M, Rossi C. Simple and scalable method for peptide inhalable powder production. Eur J Pharm Sci 2010; 39:53-8. [DOI: 10.1016/j.ejps.2009.10.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2009] [Revised: 09/03/2009] [Accepted: 10/18/2009] [Indexed: 11/29/2022]
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