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Kouhjani M, Jaafari MR, Kamali H, Abbasi A, Tafaghodi M, Mousavi Shaegh SA. Microfluidic-assisted preparation of PLGA nanoparticles loaded with insulin: a comparison with double emulsion solvent evaporation method. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:306-329. [PMID: 38100556 DOI: 10.1080/09205063.2023.2287247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 11/14/2023] [Indexed: 12/17/2023]
Abstract
Poly lactic-co-glycolic acid (PLGA) is an ideal polymer for the delivery of small and macromolecule drugs. Conventional preparation methods of PLGA nanoparticles (NPs) result in poor control over NPs properties. In this research, a microfluidic mixer was designed to produce insulin-loaded PLGA NPs with tuned properties. Importantly; aggregation of the NPs through the mixer was diminished due to the coaxial mixing of the precursors. The micromixer allowed for the production of NPs with small size and narrow size distribution compared to the double emulsion solvent evaporation (DESE) method. Furthermore, encapsulation efficiency and loading capacity indicated a significant increase in optimized NPs produced through the microfluidic method in comparison to DESE method. NPs prepared by the microfluidic method were able to achieve a more reduction of trans-epithelial electrical resistance values in the Caco-2 cells compared to those developed by the DESE technique that leads to greater paracellular permeation. Compatibility and interaction between components were evaluated by differential scanning calorimetry and fourier transform infrared analysis. Also, the effect of NPs on cell toxicity was investigated using MTT test. Numerical simulations were conducted to analyze the effect of mixing patterns on the properties of the NPs. It was revealed that by decreasing flow rate ratio, i.e. flow rate of the organic phase to the flow rate of the aqueous phase, mixing of the two streams increases. As an alternative to the DESE method, high flexibility in modulating hydrodynamic conditions of the microfluidic mixer allowed for nanoassembly of NPs with superior insulin encapsulation at smaller particle sizes.
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Affiliation(s)
- Maryam Kouhjani
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Reza Jaafari
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Biotechnology and Nanotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Kamali
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Abbasi
- Laboratory of Microfluidics and Medical Microsystems, BuAli Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Orthopedic Research Center, Ghaem Hospital, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Tafaghodi
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Nanotechnology and Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Ali Mousavi Shaegh
- Laboratory of Microfluidics and Medical Microsystems, BuAli Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Orthopedic Research Center, Ghaem Hospital, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Clinical Research Unit, Ghaem Hospital, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Shaz N, Maran S, Genasan K, Choudhary R, Alias R, Swamiappan S, Kamarul T, Raghavendran HRB. Functionalization of poly (lactic-co-glycolic acid) nano‑calcium sulphate and fucoidan 3D scaffold using human bone marrow mesenchymal stromal cells for bone tissue engineering application. Int J Biol Macromol 2024; 256:128059. [PMID: 37989428 DOI: 10.1016/j.ijbiomac.2023.128059] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 10/19/2023] [Accepted: 11/10/2023] [Indexed: 11/23/2023]
Abstract
This study aimed to functionalize a novel porous PLGA (Poly lactic-co-glycolic acid) composite scaffold in combination with nano‑calcium sulphate (nCS) and/or fucoidan (FU) to induce osteogenic differentiation of human bone marrow stromal cells. The composite scaffolds (PLGA-nCS-FU, PLGA-nCS or PLGA-FU) were fabricated and subjected to characterization using Fourier-transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), Scanning electron microscopy (SEM) and Energy Dispersive X-Ray (EDX). The biocompatibility and osteogenic induction potential of scaffolds on seeded human bone marrow derived mesenchymal stromal cells (hBMSCs) were studied using cell attachment and alamar blue cell viability and alkaline phosphatase (ALP), osteocalcin and osteogenic gene expression, respectively. The composition of different groups was reflected in FTIR, XRD and EDX. The SEM micrographs revealed a difference in the surface of the scaffold before and after FU addition. The confocal imaging and SEM micrographs confirmed the attachment of cells onto all three composite scaffolds. However, the AB assay indicated a significant increase (p < 0.05) in cell viability/proliferation seeded on PLGA-nCS-FU on day 21 and 28 as compared with other combinations. A 2-fold significant increase (p < 0.05) in ALP and OC secretion of seeded hBMSCs onto PLGA-nCS-FU was observed when compared with other combinations. A significant increase in RUNX2, OPN, COL-I and ALP genes were observed in the cells seeded on PLGA-nCS-FU on day 14 and 28 as compared with day 0. In conclusion, the incorporation of both Fucoidan and Nano‑calcium sulphate with PLGA showed a promising improvement in the osteogenic potential of hBMSCs. Therefore, PLGA-nCS-FU could be the ideal candidate for subsequent pre-clinical studies to develop a successful bone substitute to repair critical bone defects.
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Affiliation(s)
- Norshazliza Shaz
- National Orthopaedic Centre of Excellence in Research and Learning (NOCERAL), Tissue Engineering Group (TEG), Department of Orthopaedic Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Sathiya Maran
- School of Pharmacy, Monash University Malaysia. 16150 Sunway, Malaysia
| | - Krishnamurithy Genasan
- National Orthopaedic Centre of Excellence in Research and Learning (NOCERAL), Tissue Engineering Group (TEG), Department of Orthopaedic Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia; Department of Physiology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Rajan Choudhary
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Faculty of Materials Science and Applied Chemistry, Institute of General Chemical Engineering, Riga Technical University, Pulka St 3, LV-1007 Riga, Latvia; Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, Kalku Street 1, LV-1658 Riga, Latvia
| | - Rodianah Alias
- Department of Manufacturing Technology, Faculty of Innovative Design & Technology, University Sultan Zainal Abidin, 21030 Kuala Terengganu, Malaysia
| | - Sasikumar Swamiappan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Tunku Kamarul
- National Orthopaedic Centre of Excellence in Research and Learning (NOCERAL), Tissue Engineering Group (TEG), Department of Orthopaedic Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia; Advanced Medical and Dental Institute (AMDI), University Sains Malaysia, Bertam, Kepala Batas, 13200, Penang, Malaysia
| | - Hanumanth Rao Balaji Raghavendran
- National Orthopaedic Centre of Excellence in Research and Learning (NOCERAL), Tissue Engineering Group (TEG), Department of Orthopaedic Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia; Sri Ramachandra Institute of Higher Education and Research, Biomaterials Laboratory, Faculty of Clinical Research, Central Research Facility, Porur, Chennai 116, India.
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Yusuf A, Almotairy ARZ, Henidi H, Alshehri OY, Aldughaim MS. Nanoparticles as Drug Delivery Systems: A Review of the Implication of Nanoparticles' Physicochemical Properties on Responses in Biological Systems. Polymers (Basel) 2023; 15:polym15071596. [PMID: 37050210 PMCID: PMC10096782 DOI: 10.3390/polym15071596] [Citation(s) in RCA: 34] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 03/11/2023] [Accepted: 03/14/2023] [Indexed: 04/14/2023] Open
Abstract
In the last four decades, nanotechnology has gained momentum with no sign of slowing down. The application of inventions or products from nanotechnology has revolutionised all aspects of everyday life ranging from medical applications to its impact on the food industry. Nanoparticles have made it possible to significantly extend the shelf lives of food product, improve intracellular delivery of hydrophobic drugs and improve the efficacy of specific therapeutics such as anticancer agents. As a consequence, nanotechnology has not only impacted the global standard of living but has also impacted the global economy. In this review, the characteristics of nanoparticles that confers them with suitable and potentially toxic biological effects, as well as their applications in different biological fields and nanoparticle-based drugs and delivery systems in biomedicine including nano-based drugs currently approved by the U.S. Food and Drug Administration (FDA) are discussed. The possible consequence of continuous exposure to nanoparticles due to the increased use of nanotechnology and possible solution is also highlighted.
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Affiliation(s)
- Azeez Yusuf
- Irish Centre for Genetic Lung Disease, Department of Medicine, RCSI University of Medicine and Health Sciences, Beaumont Hospital, D02 YN77 Dublin, Ireland
| | | | - Hanan Henidi
- Research Department, Health Sciences Research Center, Princess Nourah bint Abdulrahman University, Riyadh 84428, Saudi Arabia
| | - Ohoud Y Alshehri
- Department of Biochemistry, College of Medicine, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11564, Saudi Arabia
| | - Mohammed S Aldughaim
- Research Center, King Fahad Medical City, Riyadh Second Health Cluster, Riyadh 11451, Saudi Arabia
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Dahiya P, Zafar A, Ahmad FJ, Khalid M, Ali A. Development of Forskolin and rutin-loaded polymeric nanoparticles for enhancement of topical ocular delivery: Optimization, in-vitro, ex-vivo, and toxicity evaluation. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
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Zaghloul N, Mahmoud AA, Elkasabgy NA, El Hoffy NM. PLGA-modified Syloid ®-based microparticles for the ocular delivery of terconazole: in-vitro and in-vivo investigations. Drug Deliv 2022; 29:2117-2129. [PMID: 35838555 PMCID: PMC9291711 DOI: 10.1080/10717544.2022.2092239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The eye is an invulnerable organ with intrinsic anatomical and physiological barriers, hindering the development of a pioneer ocular formulation. The aim of this work was to develop an efficient ocular delivery system that can augment the ocular bioavailability of the antifungal drug, terconazole. Mesoporous silica microparticles, Syloid® 244 FP were utilized as the carrier system for terconazole. Preliminary studies were carried out using different drug:Syloid® weight ratios. The optimum weight ratio was mixed with various concentrations (30 and 60%w/w) of poly (lactic-co-glycolic acid) (PLGA), ester or acid-capped and with different monomers-ratio (50:50 and 75:25) using the nano-spray dryer. Results revealed the superiority of drug:Syloid® weight ratio of 1:2 in terms of yield percentage (Y%), SPAN and drug content percentage (DC%). Furthermore, incorporation of PLGA with lower glycolic acid monomer-ratio significantly increased Y%. In contrast, increasing the glycolic acid monomer-ratio resulted in higher DC% and release efficiency percentage (RE%). Additionally, doubling PLGA concentration significantly reduced Y%, DC%, drug loading percentage (DL%) and RE%. Applying desirability function in terms of increasing DC%, DL% besides RE% and decreasing SPAN, the selected formulation was chosen for DSC, XRD and SEM investigations. Results confirmed the successful loading of amorphized terconazole on PLGA-modified Syloid® microparticles. Moreover, pharmacokinetic studies for the chosen formulation on male Albino rabbits’ eyes revealed a 2, 6.7 and 25.3-fold increase in mean residence time, Cmax and AUC0–24-values, respectively, compared to the drug suspension. PLGA-modified Syloid® microparticles represent a potential option to augment the bioavailability of ocular drugs.
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Affiliation(s)
- Nada Zaghloul
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Future University in Egypt, Cairo, Egypt
| | - Azza A Mahmoud
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Future University in Egypt, Cairo, Egypt
| | - Nermeen A Elkasabgy
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Nada M El Hoffy
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Future University in Egypt, Cairo, Egypt
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Enhanced sucrose-mediated cryoprotection of siRNA-loaded poly (lactic-co-glycolic acid) nanoparticles. Colloids Surf B Biointerfaces 2022; 220:112880. [DOI: 10.1016/j.colsurfb.2022.112880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 09/22/2022] [Accepted: 09/24/2022] [Indexed: 11/15/2022]
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Yang B, Gomes Dos Santos A, Puri S, Bak A, Zhou L. The industrial design, translation, and development strategies for long-acting peptide delivery. Expert Opin Drug Deliv 2022; 19:1233-1245. [PMID: 35787229 DOI: 10.1080/17425247.2022.2098276] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Peptides are widely recognized as therapeutic agents in the treatment of a wide range of diseases, such as cancer, diabetes etc. However, their use has been limited by their short half-life, due to significant metabolism by exo- and endo-peptidases as well as their inherent poor physical and chemical stability. Research with the aim of improving their half-life in the body, and thus improving patient compliance (by decreasing the frequency of injections) has gained significant attention. AREAS COVERED This review outlines the current landscape and industrial approaches to achieve extended peptide exposure and reduce dosing frequency. Emphasis is placed on identifying challenges in drug product manufacturing and desirable critical quality attributes that are essential for activity and safety, providing insights into chemistry and design aspects impacting peptide release, and summarizing important considerations for CMC developability assessments of sustained release peptide drugs. EXPERT OPINION Bring the patient and disease perspective early into development. Substantial advances have been made in the field of sustained delivery of peptides despite their complexity. The article will also highlight considerations for early-stage product design and development, providing an industrial perspective on risk mitigation in developing sustained release peptide drug products.
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Affiliation(s)
- Bin Yang
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Ana Gomes Dos Santos
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Sanyogitta Puri
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Annette Bak
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca, Boston, USA
| | - Liping Zhou
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca, Boston, USA
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Oral delivery of polyester nanoparticles for brain-targeting: Challenges and opportunities. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.07.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Sheffey VV, Siew EB, Tanner EEL, Eniola‐Adefeso O. PLGA's Plight and the Role of Stealth Surface Modification Strategies in Its Use for Intravenous Particulate Drug Delivery. Adv Healthc Mater 2022; 11:e2101536. [PMID: 35032406 PMCID: PMC9035064 DOI: 10.1002/adhm.202101536] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 12/31/2021] [Indexed: 12/17/2022]
Abstract
Numerous human disorders can benefit from targeted, intravenous (IV) drug delivery. Polymeric nanoparticles have been designed to undergo systemic circulation and deliver their therapeutic cargo to target sites in a controlled manner. Poly(lactic-co-glycolic) acid (PLGA) is a particularly promising biomaterial for designing intravenous drug carriers due to its biocompatibility, biodegradability, and history of clinical success across other routes of administration. Despite these merits, PLGA remains markedly absent in clinically approved IV drug delivery formulations. A prominent factor in PLGA particles' inability to succeed intravenously may lie in the hydrophobic character of the polyester, leading to the adsorption of serum proteins (i.e., opsonization) and a cascade of events that end in their premature clearance from the bloodstream. PEGylation, or surface-attached polyethylene glycol chains, is a common strategy for shielding particles from opsonization. Polyethylene glycol (PEG) continues to be regarded as the ultimate "stealth" solution despite the lack of clinical progress of PEGylated PLGA carriers. This review reflects on some of the reasons for the clinical failure of PLGA, particularly the drawbacks of PEGylation, and highlights alternative surface coatings on PLGA particles. Ultimately, a new approach will be needed to harness the potential of PLGA nanoparticles and allow their widespread clinical adoption.
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Affiliation(s)
- Violet V. Sheffey
- Macromolecular Science and Engineering Program University of Michigan Ann Arbor NCRC Building 28, 2800 Plymouth Rd. Ann Arbor MI 48109 USA
| | - Emily B. Siew
- Department of Chemical Engineering University of Michigan Ann Arbor NCRC 28, 2800 Plymouth Rd. Ann Arbor MI 48109 USA
| | - Eden E. L. Tanner
- Department of Chemistry and Biochemistry University of Mississippi 179 Coulter Hall University MS 38677 USA
| | - Omolola Eniola‐Adefeso
- Macromolecular Science and Engineering Program University of Michigan Ann Arbor NCRC Building 28, 2800 Plymouth Rd. Ann Arbor MI 48109 USA
- Department of Chemical Engineering University of Michigan Ann Arbor NCRC 28, 2800 Plymouth Rd. Ann Arbor MI 48109 USA
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Glass Transition Temperature of PLGA Particles and the Influence on Drug Delivery Applications. Polymers (Basel) 2022; 14:polym14050993. [PMID: 35267816 PMCID: PMC8912735 DOI: 10.3390/polym14050993] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 02/25/2022] [Accepted: 02/27/2022] [Indexed: 12/31/2022] Open
Abstract
Over recent decades, poly(lactic-co-glycolic acid) (PLGA) based nano- and micro- drug delivery vehicles have been rapidly developed since PLGA was approved by the Food and Drug Administration (FDA). Common factors that influence PLGA particle properties have been extensively studied by researchers, such as particle size, polydispersity index (PDI), surface morphology, zeta potential, and drug loading efficiency. These properties have all been found to be key factors for determining the drug release kinetics of the drug delivery particles. For drug delivery applications the drug release behavior is a critical property, and PLGA drug delivery systems are still plagued with the issue of burst release when a large portion of the drug is suddenly released from the particle rather than the controlled release the particles are designed for. Other properties of the particles can play a role in the drug release behavior, such as the glass transition temperature (Tg). The Tg, however, is an underreported property of current PLGA based drug delivery systems. This review summarizes the basic knowledge of the glass transition temperature in PLGA particles, the factors that influence the Tg, the effect of Tg on drug release behavior, and presents the recent awareness of the influence of Tg on drug delivery applications.
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Khoeini R, Nosrati H, Akbarzadeh A, Eftekhari A, Kavetskyy T, Khalilov R, Ahmadian E, Nasibova A, Datta P, Roshangar L, Deluca DC, Davaran S, Cucchiarini M, Ozbolat IT. Natural and Synthetic Bioinks for 3D Bioprinting. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202000097] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Roghayeh Khoeini
- Department of Medicinal Chemistry Faculty of Pharmacy Tabriz University of Medical Sciences P.O. Box: 51664-14766 Tabriz Iran
- Drug Applied Research Center Tabriz University of Medical Sciences P.O. Box: 51656-65811 Tabriz Iran
| | - Hamed Nosrati
- Drug Applied Research Center Tabriz University of Medical Sciences P.O. Box: 51656-65811 Tabriz Iran
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 24, I. Franko Str. 82100 Drohobych Ukraine
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 9 B.Vahabzade Str. 1143 Baku Azerbaijan
| | - Abolfazl Akbarzadeh
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 24, I. Franko Str. 82100 Drohobych Ukraine
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 9 B.Vahabzade Str. 1143 Baku Azerbaijan
- Department of Medical Nanotechnology Faculty of Advanced Medical Sciences Tabriz University of Medical Sciences P.O. Box: 516615731 Tabriz Iran
| | - Aziz Eftekhari
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 24, I. Franko Str. 82100 Drohobych Ukraine
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 9 B.Vahabzade Str. 1143 Baku Azerbaijan
- Russian Institute for Advanced Study Moscow State Pedagogical University 1/1, Malaya Pirogovskaya Street Moscow 119991 Russian Federation
- Pharmacology and Toxicology Department Maragheh University of Medical Sciences 78151-55158 Maragheh Iran
- Department of Synthesis and Characterization of Polymers Polymer Institute Slovak Academy of Sciences (SAS) Dúbravská cesta 9 845 41 Bratislava Slovakia
| | - Taras Kavetskyy
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 24, I. Franko Str. 82100 Drohobych Ukraine
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 9 B.Vahabzade Str. 1143 Baku Azerbaijan
- Department of Biology and Chemistry Drohobych Ivan Franko State Pedagogical University 24, I. Franko Str. 82100 Drohobych Ukraine
- Department of Surface Engineering The John Paul II Catholic University of Lublin 20-950 Lublin Poland
| | - Rovshan Khalilov
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 24, I. Franko Str. 82100 Drohobych Ukraine
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 9 B.Vahabzade Str. 1143 Baku Azerbaijan
- Russian Institute for Advanced Study Moscow State Pedagogical University 1/1, Malaya Pirogovskaya Street Moscow 119991 Russian Federation
- Department of Biophysics and Biochemistry Faculty of Biology Baku State University Baku AZ 1143 Azerbaijan
- Institute of Radiation Problems National Academy of Sciences of Azerbaijan Baku AZ 1143 Azerbaijan
| | - Elham Ahmadian
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 24, I. Franko Str. 82100 Drohobych Ukraine
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 9 B.Vahabzade Str. 1143 Baku Azerbaijan
- Kidney Research Center Tabriz University of Medical Sciences P.O. Box: 5166/15731 Tabriz Iran
| | - Aygun Nasibova
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 24, I. Franko Str. 82100 Drohobych Ukraine
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 9 B.Vahabzade Str. 1143 Baku Azerbaijan
- Institute of Radiation Problems National Academy of Sciences of Azerbaijan Baku AZ 1143 Azerbaijan
| | - Pallab Datta
- Department of Pharmaceutics National Institute of Pharmaceutical Education and Research Kolkata West Bengal 700054 India
| | - Leila Roshangar
- Stem Cell Research Center Tabriz University of Medical Sciences P.O. Box: 5166/15731 Tabriz Iran
| | - Dante C. Deluca
- Agricultural and Biological Engineering Department Penn State University University Park 16802 PA USA
| | - Soodabeh Davaran
- Department of Medicinal Chemistry Faculty of Pharmacy Tabriz University of Medical Sciences P.O. Box: 51664-14766 Tabriz Iran
- Drug Applied Research Center Tabriz University of Medical Sciences P.O. Box: 51656-65811 Tabriz Iran
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 24, I. Franko Str. 82100 Drohobych Ukraine
- Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems 9 B.Vahabzade Str. 1143 Baku Azerbaijan
- Department of Medical Nanotechnology Faculty of Advanced Medical Sciences Tabriz University of Medical Sciences P.O. Box: 516615731 Tabriz Iran
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics Saarland University Medical Center Kirrbergerstr. Bldg 37 D-66421 Homburg/Saar Germany
| | - Ibrahim T. Ozbolat
- Engineering Science and Mechanics Department Penn State University University Park 16802 PA USA
- The Huck Institutes of the Life Sciences Penn State University University Park 16802 PA USA
- Biomedical Engineering Department Penn State University University Park 16802 PA USA
- Materials Research Institute Penn State University University Park 16802 PA USA
- Department of Neurosurgery Penn State University Hershey 17033 PA USA
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Hua Y, Su Y, Zhang H, Liu N, Wang Z, Gao X, Gao J, Zheng A. Poly(lactic-co-glycolic acid) microsphere production based on quality by design: a review. Drug Deliv 2021; 28:1342-1355. [PMID: 34180769 PMCID: PMC8245074 DOI: 10.1080/10717544.2021.1943056] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Poly(lactic-co-glycolic acid) (PLGA) has garnered increasing attention as a candidate drug delivery polymer owing to its favorable properties, including its excellent biocompatibility, biodegradability, non-toxicity, non-immunogenicity, and mechanical strength. PLAG are specifically used as microspheres for the sustained/controlled and targeted delivery of hydrophilic or hydrophobic drugs, as well as biological therapeutic macromolecules, including peptide and protein drugs. PLGAs with different molecular weights, lactic acid (LA)/glycolic acid (GA) ratios, and end groups exhibit unique release characteristics, which is beneficial for obtaining diverse therapeutic effects. This review aims to analyze the composition of PLGA microspheres, and understand the manufacturing process involved in their production, from a quality by design perspective. Additionally, the key factors affecting PLGA microsphere development are explored as well as the principles involved in the synthesis and degradation of PLGA and its interaction with active drugs. Further, the effects elicited by microcosmic conditions on PLGA macroscopic properties, are analyzed. These conditions include variations in the organic phase (organic solvent, PLGA, and drug concentration), continuous phase (emulsifying ability), emulsifying stage (organic phase and continuous phase interaction, homogenization parameters), and solidification process (relationship between solvent volatilization rate and curing conditions). The challenges in achieving consistency between batches during manufacturing are addressed, and continuous production is discussed as a potential solution. Finally, potential critical quality attributes are introduced, which may facilitate the optimization of process parameters.
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Affiliation(s)
- Yabing Hua
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Yuhuai Su
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Hui Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Nan Liu
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Zengming Wang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Xiang Gao
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Jing Gao
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Aiping Zheng
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
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Gomzyak VI, Sedush NG, Puchkov AA, Polyakov DK, Chvalun SN. Linear and Branched Lactide Polymers for Targeted Drug Delivery Systems. POLYMER SCIENCE SERIES B 2021. [DOI: 10.1134/s1560090421030064] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract
The review presents modern advances in the synthesis of biodegradable polymers based on lactide of various topologies and also analyzes the main methods for preparation of nanoparticles that show promise for the creation of targeted drug delivery systems.
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Tuning morphology of Pickering emulsions stabilised by biodegradable PLGA nanoparticles: How PLGA characteristics influence emulsion properties. J Colloid Interface Sci 2021; 595:202-211. [PMID: 33823323 DOI: 10.1016/j.jcis.2021.03.061] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 03/05/2021] [Accepted: 03/11/2021] [Indexed: 11/20/2022]
Abstract
In this study, we proved that the stabilisation of Pickering emulsions by polymer nanoparticles (NPs) heavily depends on polymer characteristics. We prepared NPs with four poly(lactide-co-glycolide) polymers (PLGA), of different molar masses (14,000 and 32,000 g/mol) and end groups (acid or alkylester). NPs were either bare (without stabilising polymer) or covered by polyvinyl alcohol (PVA). Pickering emulsions were prepared by mixing NP aqueous suspensions with various amounts of oil (Miglyol 812 N). First, NP wettability was directly affected by PLGA end group: ester-ending PLGA led to more hydrophobic NPs, compared to acid-ending PLGA. This effect of the end group could be slightly enhanced with smaller molar mass. Thus, bare PLGA NPs stabilised different types of emulsions (W/O/W and W/O), following Finkle's rule. However, the effect of PLGA characteristics was masked when NPs were covered by PVA, as PVA drove the stabilisation of O/W emulsions. Secondly, PLGA molar mass and end group also influenced its glass transition temperature (Tg), with spectacular consequences on emulsion formation. Indeed, the shortest ester-ending PLGA exhibited a Tg close to room temperature, when measured in the emulsion. This Tg, easily exceeded during emulsification process, led to a soft solid emulsion, stabilised by a network of NP debris.
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Supercritical emulsion extraction fabricated PLA/PLGA micro/nano carriers for growth factor delivery: Release profiles and cytotoxicity. Int J Pharm 2021; 592:120108. [DOI: 10.1016/j.ijpharm.2020.120108] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 11/17/2020] [Accepted: 11/18/2020] [Indexed: 12/27/2022]
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The application of nano-medicine to overcome the challenges related to immune checkpoint blockades in cancer immunotherapy: Recent advances and opportunities. Crit Rev Oncol Hematol 2021; 157:103160. [DOI: 10.1016/j.critrevonc.2020.103160] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/27/2020] [Accepted: 11/05/2020] [Indexed: 12/13/2022] Open
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Park K, Otte A, Sharifi F, Garner J, Skidmore S, Park H, Jhon YK, Qin B, Wang Y. Potential Roles of the Glass Transition Temperature of PLGA Microparticles in Drug Release Kinetics. Mol Pharm 2020; 18:18-32. [PMID: 33331774 DOI: 10.1021/acs.molpharmaceut.0c01089] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Poly(lactic-co-glycolic acid) (PLGA) has been used for long-acting injectable drug delivery systems for more than 30 years. The factors affecting the properties of PLGA formulations are still not clearly understood. The drug release kinetics of PLGA microparticles are influenced by many parameters associated with the formulation composition, manufacturing process, and post-treatments. Since the drug release kinetics have not been explainable using the measurable properties, formulating PLGA microparticles with desired drug release kinetics has been extremely difficult. Of the various properties, the glass transition temperature, Tg, of PLGA formulations is able to explain various aspects of drug release kinetics. This allows examination of parameters that affect the Tg of PLGA formulations, and thus, affecting the drug release kinetics. The impacts of the terminal sterilization on the Tg and drug release kinetics were also examined. The analysis of drug release kinetics in relation to the Tg of PLGA formulations provides a basis for further understanding of the factors controlling drug release.
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Affiliation(s)
- Kinam Park
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States.,College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States.,Akina, Inc., West Lafayette, Indiana 47906, United States
| | - Andrew Otte
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Farrokh Sharifi
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - John Garner
- Akina, Inc., West Lafayette, Indiana 47906, United States
| | - Sarah Skidmore
- Akina, Inc., West Lafayette, Indiana 47906, United States
| | - Haesun Park
- Akina, Inc., West Lafayette, Indiana 47906, United States
| | - Young Kuk Jhon
- Office of Pharmaceutical Quality, Food and Drug Administration, Center for Drug Evaluation and Research, Silver Spring, Maryland 20993, United States
| | - Bin Qin
- Office of Generic Drugs, Food and Drug Administration, Center for Drug Evaluation and Research, Silver Spring, Maryland 20993, United States
| | - Yan Wang
- Office of Generic Drugs, Food and Drug Administration, Center for Drug Evaluation and Research, Silver Spring, Maryland 20993, United States
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Otte A, Sharifi F, Park K. Interfacial tension effects on the properties of PLGA microparticles. Colloids Surf B Biointerfaces 2020; 196:111300. [PMID: 32919245 PMCID: PMC7708423 DOI: 10.1016/j.colsurfb.2020.111300] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 06/15/2020] [Accepted: 07/30/2020] [Indexed: 01/02/2023]
Abstract
Many types of long-acting injectables, including in situ forming implants, preformed implants, and polymeric microparticles, have been developed and ultimately benefited numerous patients. The advantages of using long-acting injectables include greater patient compliance and more steady state drug plasma levels for weeks and months. However, the development of long-acting polymeric microparticles has been hampered by the lack of understanding of the microparticle formation process, and thus, control of the process. Of the many parameters critical to the reproducible preparation of microparticles, the interfacial tension (IFT) effect is an important factor throughout the process. It may influence the droplet formation, solvent extraction, and drug distribution in the polymer matrix, and ultimately drug release kinetics from the microparticles. This mini-review is focused on the IFT effects on drug-loaded poly(lactic-co-glycolic acid) (PLGA) microparticles.
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Affiliation(s)
- Andrew Otte
- Purdue University, Weldon School of Biomedical Engineering, West Lafayette, IN 47907, USA.
| | - Farrokh Sharifi
- Purdue University, Weldon School of Biomedical Engineering, West Lafayette, IN 47907, USA
| | - Kinam Park
- Purdue University, Department of Pharmaceutics, West Lafayette, IN 47907, USA
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Saha D, Kumar S, Ray D, Kohlbrecher J, Aswal VK. Role of physicochemical parameters associated with the hydrophobic vs. amphiphilic biodegradable polymer nanoparticles formation. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Beig A, Feng L, Walker J, Ackermann R, Hong JKY, Li T, Wang Y, Qin B, Schwendeman SP. Physical–Chemical Characterization of Octreotide Encapsulated in Commercial Glucose-Star PLGA Microspheres. Mol Pharm 2020; 17:4141-4151. [DOI: 10.1021/acs.molpharmaceut.0c00619] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Avital Beig
- Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | - Linglin Feng
- Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | - Jennifer Walker
- Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | - Rose Ackermann
- Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | - Justin K. Y. Hong
- Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | - Tinghui Li
- Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | - Yan Wang
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, Massachusetts 20993, United States
| | - Bin Qin
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, Massachusetts 20993, United States
| | - Steven P. Schwendeman
- Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
- Department of Biomedical Engineering, University of Michigan, 2200 Bonisteel Blvd., Ann Arbor, Michigan 48109, United States
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Evaluation of effect of two different functionalized nanoparticle photodynamic therapy on nanohardness of root dentin-An in vitro study. Photodiagnosis Photodyn Ther 2020; 31:101856. [PMID: 32579909 DOI: 10.1016/j.pdpdt.2020.101856] [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: 02/28/2020] [Revised: 05/19/2020] [Accepted: 06/01/2020] [Indexed: 12/30/2022]
Abstract
INTRODUCTION The aim of this study was to evaluate the effect of functionalized nanoparticle photodynamic therapy on Nano hardness of root dentin METHODOLOGY: Fifty single rooted lower premolars were decoronated and sectioned into two halves. Then the samples were embedded horizontally in to the acrylic resin to expose the dentin surface. Baseline nanohardness was done at midroot level using a Nanohardness tester. Exposed dentin surfaces were immersed in the following irrigating solutions Post treatment nanohardness testing was done and results were analyzed statistically RESULTS: In general, all the samples in their respective groups had significant change in nanohardness following immersion in irrigant solutions except in NaOCl + EDTA and saline group. CSRB-np and PLGA-MBnp showed increased nanohardness (P = 0.005 and P = 0.007 respectively). Whereas NaOCl + EDTA + CHX showed decrease in nanohardness (P = 0.04). With regards to Modulus of elasticity (MOE), CSRB-np showed significant difference (P = 0.002) compared to the other groups. MOE increased in CSRB-np and PLGA-MBnp while it decreased in all the other groups. CONCLUSION In this study, the improvement of nanohardness and modulus of elasticity following the immersion of root dentin in CSRB-np solution was demonstrated.
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Tajbakhsh S, Hajiali F, Marić M. Nitroxide-Mediated Miniemulsion Polymerization of Bio-Based Methacrylates. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00840] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Saeid Tajbakhsh
- Department of Chemical Engineering, McGill University, 3610 University St. Montreal, H3A 0C5 Quebec, Canada
| | - Faezeh Hajiali
- Department of Chemical Engineering, McGill University, 3610 University St. Montreal, H3A 0C5 Quebec, Canada
| | - Milan Marić
- Department of Chemical Engineering, McGill University, 3610 University St. Montreal, H3A 0C5 Quebec, Canada
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Design and Characterization of Injectable Poly(Lactic-Co-Glycolic Acid) Pastes for Sustained and Local Drug Release. Pharm Res 2020; 37:36. [PMID: 31965346 DOI: 10.1007/s11095-019-2730-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 10/31/2019] [Indexed: 01/09/2023]
Abstract
PURPOSE We describe the preparation of injectable polymeric paste (IPP) formulations for local and sustained release of drugs. Furthermore, we include the characterization and possible applications of such pastes. Particular attention is paid to characteristics relevant to the successful clinical formulation development, such as viscosity, injectability, degradation, drug release, sterilization, stability performance and pharmacokinetics. METHODS Paste injectability was characterized using measured viscosity and the Hagen-Poiseuille equation to determine injection forces. Drug degradation, release and formulation stability experiments were performed in vitro and drug levels were quantified using HPLC-UV methods. Pharmacokinetic evaluation of sustained-release lidocaine IPPs used five groups of six rats receiving increasing doses subcutaneously. An anti-cancer formulation was evaluated in a subcutaneous tumor xenograft mouse model. RESULTS The viscosity and injectability of IPPs could be controlled by changing the polymeric composition. IPPs demonstrated good long-term stability and tunable drug-release with low systemic exposure in vivo in rats. Preliminary data in a subcutaneous tumor model points to a sustained anticancer effect. CONCLUSIONS These IPPs are tunable platforms for local and sustained delivery of drugs and have potential for further clinical development to treat a number of diseases.
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Park H, Ha DH, Ha ES, Kim JS, Kim MS, Hwang SJ. Effect of Stabilizers on Encapsulation Efficiency and Release Behavior of Exenatide-Loaded PLGA Microsphere Prepared by the W/O/W Solvent Evaporation Method. Pharmaceutics 2019; 11:E627. [PMID: 31771254 PMCID: PMC6955873 DOI: 10.3390/pharmaceutics11120627] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 11/20/2019] [Accepted: 11/21/2019] [Indexed: 12/22/2022] Open
Abstract
The aim of this study was to investigate the effects of various stabilizers on the encapsulation efficiency and release of exenatide-loaded PLGA (poly(lactic-co-glycolic acid)) microspheres prepared by the water-in-oil-in-water (W/O/W) solvent evaporation (SE) method. It was shown that the stabilizers affected exenatide stability in aqueous solutions, at water/dichloromethane interfaces, on PLGA surfaces, or during freeze-thawing and freeze-drying procedures. Sucrose predominantly reduces instability generated during freeze-thawing and freeze-drying. Phenylalanine prevents the destabilization at the water-dichloromethane (DCM) interface through decreased adsorption. Poloxamer 188 enhances stability in aqueous solutions and prevents adsorption to PLGA. Proline and lysine decrease adsorption on PLGA surfaces. Fourier transform infra-red spectroscopy (FT-IR) was used to find the molecular interaction of additives with exenatide or PLGA. Additives used in stability assessments were then added stepwise into the inner or outer water phase of the W/O/W double emulsion, and exenatide-loaded microspheres were prepared using the solvent evaporation method. The effect of each stabilizer on the encapsulation efficiency and release behavior of microspheres correlated well with the stability assessment results, except for the negative effect of poloxamer 188. Particle size analysis using laser diffractometry, scanning electron microscopy (SEM), water vapor sorption analysis, differential scanning calorimetry (DSC), and circular dichroism (CD) spectroscopy were also employed to characterize the prepared exenatide-loaded PLGA microsphere. This study demonstrated that an adequate formulation can be obtained by the study about the effect of stabilizers on peptide stability at the preformulation step. In addition, it can help to overcome various problems that can cause the destabilization of a peptide during the microsphere-manufacturing process and sustained drug release.
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Affiliation(s)
- Heejun Park
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Korea; (H.P.); (D.-H.H.); (E.-S.H.)
| | - Dong-Hyun Ha
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Korea; (H.P.); (D.-H.H.); (E.-S.H.)
| | - Eun-Sol Ha
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Korea; (H.P.); (D.-H.H.); (E.-S.H.)
| | - Jeong-Soo Kim
- Dong-A ST Co., Ltd., Giheung-gu, Yongin, Gyeonggi 446-905, Korea;
| | - Min-Soo Kim
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Korea; (H.P.); (D.-H.H.); (E.-S.H.)
| | - Sung-Joo Hwang
- College of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, Korea
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Haryadi BM, Hafner D, Amin I, Schubel R, Jordan R, Winter G, Engert J. Nonspherical Nanoparticle Shape Stability Is Affected by Complex Manufacturing Aspects: Its Implications for Drug Delivery and Targeting. Adv Healthc Mater 2019; 8:e1900352. [PMID: 31410996 DOI: 10.1002/adhm.201900352] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 07/05/2019] [Indexed: 02/04/2023]
Abstract
The shape of nanoparticles is known recently as an important design parameter influencing considerably the fate of nanoparticles with and in biological systems. Several manufacturing techniques to generate nonspherical nanoparticles as well as studies on in vitro and in vivo effects thereof have been described. However, nonspherical nanoparticle shape stability in physiological-related conditions and the impact of formulation parameters on nonspherical nanoparticle resistance still need to be investigated. To address these issues, different nanoparticle fabrication methods using biodegradable polymers are explored to produce nonspherical nanoparticles via the prevailing film-stretching method. In addition, systematic comparisons to other nanoparticle systems prepared by different manufacturing techniques and less biodegradable materials (but still commonly utilized for drug delivery and targeting) are conducted. The study evinces that the strong interplay from multiple nanoparticle properties (i.e., internal structure, Young's modulus, surface roughness, liquefaction temperature [glass transition (Tg ) or melting (Tm )], porosity, and surface hydrophobicity) is present. It is not possible to predict the nonsphericity longevity by merely one or two factor(s). The most influential features in preserving the nonsphericity of nanoparticles are existence of internal structure and low surface hydrophobicity (i.e., surface-free energy (SFE) > ≈55 mN m-1 , material-water interfacial tension <6 mN m-1 ), especially if the nanoparticles are soft (<1 GPa), rough (Rrms > 10 nm), porous (>1 m2 g-1 ), and in possession of low bulk liquefaction temperature (<100 °C). Interestingly, low surface hydrophobicity of nanoparticles can be obtained indirectly by the significant presence of residual stabilizers. Therefore, it is strongly suggested that nonsphericity of particle systems is highly dependent on surface chemistry but cannot be appraised separately from other factors. These results and reviews allot valuable guidelines for the design and manufacturing of nonspherical nanoparticles having adequate shape stability, thereby appropriate with their usage purposes. Furthermore, they can assist in understanding and explaining the possible mechanisms of nonspherical nanoparticles effectivity loss and distinctive material behavior at the nanoscale.
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Affiliation(s)
- Bernard Manuel Haryadi
- Pharmaceutical Technology and BiopharmaceuticsDepartment of PharmacyLudwig‐Maximilians‐Universität München Butenandtstraße 5 81377 Munich Germany
| | - Daniel Hafner
- Department of ChemistryDresden University of Technology Mommsenstraße 4 01069 Dresden Germany
| | - Ihsan Amin
- Department of ChemistryDresden University of Technology Mommsenstraße 4 01069 Dresden Germany
| | - Rene Schubel
- Department of ChemistryDresden University of Technology Mommsenstraße 4 01069 Dresden Germany
| | - Rainer Jordan
- Department of ChemistryDresden University of Technology Mommsenstraße 4 01069 Dresden Germany
| | - Gerhard Winter
- Pharmaceutical Technology and BiopharmaceuticsDepartment of PharmacyLudwig‐Maximilians‐Universität München Butenandtstraße 5 81377 Munich Germany
| | - Julia Engert
- Pharmaceutical Technology and BiopharmaceuticsDepartment of PharmacyLudwig‐Maximilians‐Universität München Butenandtstraße 5 81377 Munich Germany
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Design of Poly(lactic- co-glycolic Acid) (PLGA) Nanoparticles for Vaginal Co-Delivery of Griffithsin and Dapivirine and Their Synergistic Effect for HIV Prophylaxis. Pharmaceutics 2019; 11:pharmaceutics11040184. [PMID: 30995761 PMCID: PMC6523646 DOI: 10.3390/pharmaceutics11040184] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/03/2019] [Accepted: 04/11/2019] [Indexed: 01/22/2023] Open
Abstract
Long-acting topical products for pre-exposure prophylaxis (PrEP) that combine antiretrovirals (ARVs) inhibiting initial stages of infection are highly promising for prevention of HIV sexual transmission. We fabricated core-shell poly(lactide-co-glycolide) (PLGA) nanoparticles, loaded with two potent ARVs, griffithsin (GRFT) and dapivirine (DPV), having different physicochemical properties and specifically targeting the fusion and reverse transcription steps of HIV replication, as a potential long-acting microbicide product. The nanoparticles were evaluated for particle size and zeta potential, drug release, cytotoxicity, cellular uptake and in vitro bioactivity. PLGA nanoparticles, with diameter around 180–200 nm, successfully encapsulated GRFT (45% of initially added) and DPV (70%). Both drugs showed a biphasic release with initial burst phase followed by a sustained release phase. GRFT and DPV nanoparticles were non-toxic and maintained bioactivity (IC50 values of 0.5 nM and 4.7 nM, respectively) in a cell-based assay. The combination of drugs in both unformulated and encapsulated in nanoparticles showed strong synergistic drug activity at 1:1 ratio of IC50 values. This is the first study to co-deliver a protein (GRFT) and a hydrophobic small molecule (DPV) in PLGA nanoparticles as microbicides. Our findings demonstrate that the combination of GRFT and DPV in nanoparticles is highly potent and possess properties critical to the design of a sustained release microbicide.
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Skidmore S, Hadar J, Garner J, Park H, Park K, Wang Y, Jiang XJ. Complex sameness: Separation of mixed poly(lactide-co-glycolide)s based on the lactide:glycolide ratio. J Control Release 2019; 300:174-184. [PMID: 30853529 DOI: 10.1016/j.jconrel.2019.03.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 02/23/2019] [Accepted: 03/01/2019] [Indexed: 11/18/2022]
Abstract
Poly (lactide-co-glycolide) (PLGA) has been used for making injectable, long-acting depot formulations for the last three decades. An in depth understanding of PLGA polymers is critical for development of depot formulations as their properties control drug release kinetics. To date, about 20 PLGA-based formulations have been approved by the U.S. Food and Drug Administration (FDA) through new drug applications, and none of them have generic counterparts on the market yet. The lack of generic PLGA products is partly due to difficulties in reverse engineering. A generic injectable PLGA product is required to establish qualitative and quantitative (Q1/Q2) sameness of PLGA to that of a reference listed drug (RLD) to obtain an approval from the FDA. Conventional characterizations of PLGA used in a formulation rely on measuring the molecular weight by gel permeation chromatography (GPC) based on polystyrene molecular weight standards, and determining the lactide:glycolide (L: G) ratio by 1H NMR and the end-group by 13C NMR. These approaches, however, may not be suitable or sufficient, if a formulation has more than one type of PLGA, especially when they have similar molecular weights, but different L:G ratios. Accordingly, there is a need to develop new assay methods for separating PLGAs possessing different L:G ratios when used in a drug product and characterizing individual PLGAs. The current work identifies a series of semi-solvents which exhibit varying degrees of PLGA solubility depending on the L:G ratio of the polymer. A good solvent dissolves PLGAs with all L:G ratios ranging from 50:50 to 100:0. A semi-solvent dissolves PLGAs with only certain L:G ratios. Almost all semi-solvents identified in this study increase their PLGA solubility as the L:G ratio increases, i.e., the lactide content increases. This lacto-selectivity, favoring higher L:G ratios, has been applied for separating individual PLGAs in a given depot formulation, leading to analysis of each type of PLGA. This semi-solvent method allows a simple, practical bench-top separation of PLGAs of varying L:G ratios. This method enables isolation and identification of individual PLGAs from a complex mixture that is critical for the quality control of PLGA formulations, as well as reverse engineering for generic products to establish the Q1/Q2 sameness.
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Affiliation(s)
- Sarah Skidmore
- Akina, Inc., 3495 Kent Avenue, Suite A200, West Lafayette, IN 47906, USA
| | - Justin Hadar
- Akina, Inc., 3495 Kent Avenue, Suite A200, West Lafayette, IN 47906, USA
| | - John Garner
- Akina, Inc., 3495 Kent Avenue, Suite A200, West Lafayette, IN 47906, USA
| | - Haesun Park
- Akina, Inc., 3495 Kent Avenue, Suite A200, West Lafayette, IN 47906, USA
| | - Kinam Park
- Akina, Inc., 3495 Kent Avenue, Suite A200, West Lafayette, IN 47906, USA; Biomedical Engineering and Pharmaceutics, Purdue University, 206 S. Martin Jischke Drive, West Lafayette, IN 47907, USA.
| | - Yan Wang
- Food and Drug Administration, Center for Drug Evaluation and Research, Office of Generic Drugs, 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA
| | - Xiaohui Jeff Jiang
- Food and Drug Administration, Center for Drug Evaluation and Research, Office of Generic Drugs, 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA
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Mathurin J, Pancani E, Deniset-Besseau A, Kjoller K, Prater CB, Gref R, Dazzi A. How to unravel the chemical structure and component localization of individual drug-loaded polymeric nanoparticles by using tapping AFM-IR. Analyst 2019; 143:5940-5949. [PMID: 30345433 DOI: 10.1039/c8an01239c] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
AFM-IR is a photothermal technique that combines AFM and infrared (IR) spectroscopy to unambiguously identify the chemical composition of a sample with tens of nanometer spatial resolution. So far, it has been successfully used in contact mode in a variety of applications. However, the contact mode is unsuitable for soft or loosely adhesive samples such as polymeric nanoparticles (NPs) of less than 200 nm of wide interest for biomedical applications. We describe here the theoretical basis of the innovative tapping AFMIR mode that can address novel challenges in imaging and chemical mapping. The new method enables gaining information not only on NP morphology and composition, but also reveals drug location and core-shell structures. Whereas up to now the locations of NP components could only be hypothesized, tapping AFM-IR allows accurately visualizing both the location of the NPs' shells and that of the incorporated drug, pipemidic acid. The preferential accumulation of the drug in the NPs' top layers was proved, despite its low concentration (<1 wt%). These studies pave the way towards the use of tapping AFM-IR as a powerful tool to control the quality of NP formulations based on individual NP detection and component quantification.
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Affiliation(s)
- Jérémie Mathurin
- Laboratoire de Chimie Physique (LCP), CNRS UMR 8000, Univ. of Paris-Sud, Université Paris-Saclay, 91405 Orsay, France.
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Mao Z, Li Y, Yang Y, Fang Z, Chen X, Wang Y, Kang J, Qu X, Yuan W, Dai K, Yue B. Osteoinductivity and Antibacterial Properties of Strontium Ranelate-Loaded Poly(Lactic-co-Glycolic Acid) Microspheres With Assembled Silver and Hydroxyapatite Nanoparticles. Front Pharmacol 2018; 9:368. [PMID: 29720940 PMCID: PMC5915458 DOI: 10.3389/fphar.2018.00368] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 03/29/2018] [Indexed: 12/25/2022] Open
Abstract
Bone-related infection rates are 4–64% in long open bone fractures and nearly 1% in joint-related surgeries. Treating bone infections and infection-related bone loss is very important. The present study prepared strontium ranelate (SR)-loaded poly(lactic-co-glycolic acid) (PLGA) microspheres (PM) with assembled silver nanoparticles (AgNPs) and hydroxyapatite nanoparticles (HANPs) (SR-PM-Ag-HA) through a novel solid-in-oil nanosuspension (S/O/N) method to achieve osteoinductivity and antibacterial properties. We evaluated the microstructure, drug release, biocompatibility, osteoinductivity, and antibacterial activity in vitro. The microspheres showed a stable shape and size. The cumulative drug release reached a maximum of ∼90% after 22 days. All groups loaded with SR enhanced MC3T3-E1 cell proliferation to a greater degree than pure PM. The osteoinductivity behavior was investigated by ALP staining and real-time PCR of osteogenic differentiation marker genes. The antibacterial activity was evaluated using antibacterial ability and biofilm formation assays. SR-PM-Ag-HA greatly enhanced osteogenic differentiation and showed excellent antibacterial properties. These results indicated that SR-PM-Ag-HA could be biocompatible and suitable for drug delivery, osteoinduction, and antibiosis, and therefore, have potential applications in the treatment of bone-related infections and promotion of bone formation at infected sites.
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Affiliation(s)
- Zhenyang Mao
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Orthopaedic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang Li
- Department of Orthopaedic Surgery, Shanghai Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yunqi Yang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Zhiwei Fang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Xuan Chen
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Yugang Wang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian Kang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Xinhua Qu
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weien Yuan
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Kerong Dai
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bing Yue
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Goimil L, Jaeger P, Ardao I, Gómez-Amoza JL, Concheiro A, Alvarez-Lorenzo C, García-González CA. Preparation and stability of dexamethasone-loaded polymeric scaffolds for bone regeneration processed by compressed CO2 foaming. J CO2 UTIL 2018. [DOI: 10.1016/j.jcou.2017.12.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Garner J, Skidmore S, Park H, Park K, Choi S, Wang Y. Beyond Q1/Q2: The Impact of Manufacturing Conditions and Test Methods on Drug Release From PLGA-Based Microparticle Depot Formulations. J Pharm Sci 2018; 107:353-361. [DOI: 10.1016/j.xphs.2017.10.027] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 09/28/2017] [Accepted: 10/17/2017] [Indexed: 01/05/2023]
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Stabilizers influence drug-polymer interactions and physicochemical properties of disulfiram-loaded poly-lactide-co-glycolide nanoparticles. Future Sci OA 2017; 4:FSO263. [PMID: 29379637 PMCID: PMC5778387 DOI: 10.4155/fsoa-2017-0091] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 10/06/2017] [Indexed: 12/04/2022] Open
Abstract
Aim: Stabilizers are known to be an integral component of polymeric nanostructures. Ideally, they manipulate physicochemical properties of nanoparticles. Based on this hypothesis, we demonstrated that disulfiram (drug) and Poly-lactide-co-glycolide (polymer) interactions and physicochemical properties of their nanoparticles formulations are significantly influenced by the choice of stabilizers. Methodology: Electron microscopy, differential scanning calorimetry, x-ray diffraction, Raman spectrum analysis, isothermal titration calorimetry and in silico docking studies were performed. Results & discussion: Polysorbate 80 imparted highest crystallinity while Triton-X 100 imparted highest rigidity, possibly influencing drug bioavailability, blood-retention time, cellular uptake and sustained drug release. All the molecular interactions were hydrophobic in nature and entropy driven. Therefore, polymeric nanoparticles may be critically manipulated to streamline the passive targeting of drug-loaded nanoparticles. Polymeric nanoparticles are futuristic drug-delivering platforms that have many potential advantages above conventional drug-delivery tools. They are mainly composed of a polymer, stabilizer and the therapeutic ingredient. A number of researches are on-going to improvise various characteristics of polymeric nanoparticles, in order to enhance its efficacy. The current study is one such domain where we emphasize on identifying potential stabilizing factors that are involved in nanoparticles formation and their drug entrapment and release properties.
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Bayer IS. Thermomechanical Properties of Polylactic Acid-Graphene Composites: A State-of-the-Art Review for Biomedical Applications. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E748. [PMID: 28773109 PMCID: PMC5551791 DOI: 10.3390/ma10070748] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 06/28/2017] [Accepted: 06/30/2017] [Indexed: 01/18/2023]
Abstract
Due to its biodegradable and bioabsorbable characteristics polylactic acid (PLA) has attracted considerable attention for numerous biomedical applications. Moreover, a number of tissue engineering problems for function restoration of impaired tissues have been addressed by using PLA and its copolymers due to their biocompatibility and distinctive mechanical properties. Recent studies on various stereocomplex formation between enantiomeric PLA, poly(l-lactide) (PLLA) and poly(d-lactide) (PDLA) indicated that stereocomplexation enhances the mechanical properties as well as the thermal- and hydrolysis-resistance of PLA polymers. On the other hand, biomedical application of graphene is a relatively new front with significant potential. Many recent reports have indicated that understanding of graphene-cell (or tissue, organ) interactions; particularly the cellular uptake mechanisms are still challenging. Therefore, use of graphene or graphene oxide properly embedded in suitable PLA matrices can positively impact and accelerate the growth, differentiation, and proliferation of stem cells, conceivably minimizing concerns over cytotoxicity of graphene. As such, PLA-graphene composites hold great promise in tissue engineering, regenerative medicine, and in other biomedical fields. However, since PLA is classified as a hard bio-polyester prone to hydrolysis, understanding and engineering of thermo-mechanical properties of PLA-graphene composites are very crucial for such cutting-edge applications. Hence, this review aims to present an overview of current advances in the preparation and applications of PLA-graphene composites and their properties with focus on various biomedical uses such as scaffolds, drug delivery, cancer therapy, and biological imaging, together with a brief discussion on the challenges and perspectives for future research in this field.
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Affiliation(s)
- Ilker S Bayer
- Smart Materials, Istituto Italiano di Tecnologia, 16163 Genoa, Italy.
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Mao Z, Fang Z, Yang Y, Chen X, Wang Y, Kang J, Qu X, Yuan W, Dai K. Strontium ranelate-loaded PLGA porous microspheres enhancing the osteogenesis of MC3T3-E1 cells. RSC Adv 2017; 7:24607-24615. [DOI: 10.1039/c7ra01445g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2023] Open
Abstract
Biodegradable poly lactic-co-glycolic acid (PLGA) has been used as a tissue engineering scaffold as well as a carrier for the delivery of proteins, drugs, and other macromolecules.
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Affiliation(s)
- Zhenyang Mao
- Shanghai Key Laboratory of Orthopedic Implants
- Department of Orthopedic Surgery
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
| | - Zhiwei Fang
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Yunqi Yang
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Xuan Chen
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Yugang Wang
- Shanghai Key Laboratory of Orthopedic Implants
- Department of Orthopedic Surgery
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
| | - Jian Kang
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Xinhua Qu
- Shanghai Key Laboratory of Orthopedic Implants
- Department of Orthopedic Surgery
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
| | - Weien Yuan
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Kerong Dai
- Shanghai Key Laboratory of Orthopedic Implants
- Department of Orthopedic Surgery
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
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Liu Q, Ma P, Liu L, Ma G, Ma J, Liu X, Liu Y, Lin W, Zhu Y. Evaluation of PLGA containing anti-CTLA4 inhibited endometriosis progression by regulating CD4+CD25+Treg cells in peritoneal fluid of mouse endometriosis model. Eur J Pharm Sci 2016; 96:542-550. [PMID: 27989857 DOI: 10.1016/j.ejps.2016.10.031] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 10/26/2016] [Accepted: 10/28/2016] [Indexed: 01/08/2023]
Abstract
Our study investigated poly(lactic-co-glycolic acid) (PLGA) as protein delivery vehicles encapsulate CTLA-4-antibody (anti-CTLA-4) which is essential for CD4+CD25+Treg cells suppressive function exposing superior potential for inhibiting endometriosis progress in mouse model than single anti-CTLA-4. Anti-CTLA-4 loaded PLGA combined to ligands CTLA-4 in surface of CD4+CD25+Treg cells which distributed in peritoneal fluid of mouse endometriosis model. The particle size, zeta potential of the anti-CTLA-4 loaded nanoparticles was detected by dynamic light scattering. Morphology of nanoparticles was evaluated by transmission electron microscopy (TEM). Confocal laser scanning microscopy (CLSM) indicated distribution of anti-CTLA-4 with PLGA or without in peritoneal fluid. Cumulative anti-CTLA-4 release from nanoparticles was evaluated by Micro BCA assay. The percentage of CD4+CD25+Treg cells in peritoneal fluid was demonstrated by flow cytometer. In vitro experiment we co-culture ectopic endometrial cells (EEC) with isolated CD4+CD25+Treg cells in peritoneal fluid (PF), proliferation and invasion of ectopic endometrial cells (EEC) was measured by BrdU ELISA assay and Matrigel invasion assay. In comparison with anti-CTLA-4 without nanoparticles, the bioconjugates PLGA/anti-CTLA-4 were tolerated in peritoneal fluid with a controlled release of anti-CTLA-4 in 3, 7, 14days. Moreover, PLGA/anti-CTLA-4 had superior protective regulation ability to reduce level of CD4+CD25+Treg cells in peritoneal fluid. Most strikingly, in vitro experiment, PLGA/anti-CTLA-4 exhibited better ability in inhibiting proliferation and invasion of ectopic endometrial cells in co-culture system compared with anti-CTLA-4. Progressively, PLGA/anti-CTLA-4 had better suppressive activity to inhibited IL-10 and TGF-beta secreted by CD4+CD25+Treg cells which indicating that PLGA/anti-CTLA-4 suppressed cells proliferation and invasion through reduced IL-10 and TGF-beta production. Thus, PLGA/anti-CTLA-4 may be a potential strategy for endometriosis therapy.
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Affiliation(s)
- Qi Liu
- Department of Obstetrics & Gynecology, Graduate School of Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin 300070, China
| | - Pingchuan Ma
- Department of Gynecology, Tianjin Central Hospital of Gynecology Obstetrics, 156 San Ma Road, Nankai District, Tianjin 300100,China
| | - Lanxia Liu
- Lab of Bioengineering, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Biomedical Materials, Tianjin 300192, China
| | - Guilei Ma
- Lab of Bioengineering, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Biomedical Materials, Tianjin 300192, China
| | - Jingjing Ma
- Lab of Bioengineering, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Biomedical Materials, Tianjin 300192, China
| | - Xiaoxuan Liu
- Lab of Bioengineering, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Biomedical Materials, Tianjin 300192, China
| | - Yijin Liu
- Department of Obstetrics & Gynecology, Graduate School of Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin 300070, China
| | - Wanjun Lin
- Department of Gynecology, Tianjin Central Hospital of Gynecology Obstetrics, 156 San Ma Road, Nankai District, Tianjin 300100,China
| | - Yingjun Zhu
- Department of Gynecology, Tianjin Central Hospital of Gynecology Obstetrics, 156 San Ma Road, Nankai District, Tianjin 300100,China.
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Elsaid N, Jackson TL, Elsaid Z, Alqathama A, Somavarapu S. PLGA Microparticles Entrapping Chitosan-Based Nanoparticles for the Ocular Delivery of Ranibizumab. Mol Pharm 2016; 13:2923-40. [PMID: 27286558 DOI: 10.1021/acs.molpharmaceut.6b00335] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Age-related macular degeneration (AMD) is the leading cause of certified vision loss worldwide. The standard treatment for neovascular AMD involves repeated intravitreal injections of therapeutic proteins directed against vascular endothelial growth factor, such as ranibizumab. Biodegradable polymers, such as poly(lactic-co-glycolic acid) (PLGA), form delivery vehicles which can be used to treat posterior segment eye diseases, but suffer from poor protein loading and release. This work describes a "system-within-system", PLGA microparticles incorporating chitosan-based nanoparticles, for improved loading and sustained intravitreal delivery of ranibizumab. Chitosan-N-acetyl-l-cysteine (CNAC) was synthesized and its synthesis confirmed using FT-IR and (1)H NMR. Chitosan-based nanoparticles composed of CNAC, CNAC/tripolyphosphate (CNAC/TPP), chitosan, chitosan/TPP (chit/TPP), or chit/TPP-hyaluronic acid (chit/TPP-HA) were incorporated in PLGA microparticles using a modified w/o/w double emulsion method. Nanoparticles and final nanoparticles-within-microparticles were characterized for their protein-nanoparticle interaction, size, zeta potential, morphology, protein loading, stability, in vitro release, in vivo antiangiogenic activity, and effects on cell viability. The prepared nanoparticles were 17-350 nm in size and had zeta potentials of -1.4 to +12 mV. Microscopic imaging revealed spherical nanoparticles on the surface of PLGA microparticles for preparations containing chit/TPP, CNAC, and CNAC/TPP. Ranibizumab entrapment efficiency in the preparations varied between 13 and 69% and was highest for the PLGA microparticles containing CNAC nanoparticles. This preparation also showed the slowest release with no initial burst release compared to all other preparations. Incorporation of TPP to this formulation increased the rate of protein release and reduced entrapment efficiency. PLGA microparticles containing chit/TPP-HA showed the fastest and near-complete release of ranibizumab. All of the prepared empty particles showed no effect on cell viability up to a concentration of 12.5 mg/mL. Ranibizumab released from all preparations maintained its structural integrity and in vitro activity. The chit/TPP-HA preparation enhanced antiangiogenic activity and may provide a potential biocompatible platform for enhanced antiangiogenic activity in combination with ranibizumab. In conclusion, the PLGA microparticles containing CNAC nanoparticles showed significantly improved ranibizumab loading and release profile. This novel drug delivery system may have potential for improved intravitreal delivery of therapeutic proteins, thereby reducing the frequency, risk, and cost of burdensome intravitreal injections.
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Affiliation(s)
- Naba Elsaid
- University of Hertfordshire , Hatfield, United Kingdom
| | | | - Zeeneh Elsaid
- University College London School of Pharmacy , London, United Kingdom
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Luque-Michel E, Larrea A, Lahuerta C, Sebastian V, Imbuluzqueta E, Arruebo M, Blanco-Prieto MJ, Santamaría J. A simple approach to obtain hybrid Au-loaded polymeric nanoparticles with a tunable metal load. NANOSCALE 2016; 8:6495-506. [PMID: 26612770 PMCID: PMC4819683 DOI: 10.1039/c5nr06850a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Accepted: 11/15/2015] [Indexed: 05/22/2023]
Abstract
A new strategy to nanoengineer multi-functional polymer-metal hybrid nanostructures is reported. By using this protocol the hurdles of most of the current developments concerning covalent and non-covalent attachment of polymers to preformed inorganic nanoparticles (NPs) are overcome. The strategy is based on the in situ reduction of metal precursors using the polymeric nanoparticle as a nanoreactor. Gold nanoparticles and poly(DL-lactic-co-glycolic acid), PLGA, are located in the core and shell, respectively. This novel technique enables the production of PLGA NPs smaller than 200 nm that bear either a single encapsulated Au NP or several smaller NPs with tunable sizes and a 100% loading efficiency. In situ reduction of Au ions inside the polymeric NPs was achieved on demand by using heat to activate the reductive effect of citrate ions. In addition, we show that the loading of the resulting Au NPs inside the PLGA NPs is highly dependent on the surfactant used. Electron microscopy, laser irradiation, UV-Vis and fluorescence spectroscopy characterization techniques confirm the location of Au nanoparticles. These promising results indicate that these hybrid nanomaterials could be used in theranostic applications or as contrast agents in dark-field imaging and computed tomography.
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Affiliation(s)
- Edurne Luque-Michel
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, C/Irunlarrea 1, E-31008 Pamplona, Spain. and IdiSNA, Fundación Instituto de Investigación Sanitaria de Navarra, Recinto del Complejo Hospitalario de Navarra. Calle Irunlarrea, 3. Pamplona 31008, Spain
| | - Ane Larrea
- Institute of Nanoscience of Aragon (INA) and Department of Chemical, Engineering and Environmental Technology, University of Zaragoza, C/Mariano Esquillor, s/n, I+D+i Building, 50018, Zaragoza, Spain.
| | - Celia Lahuerta
- Institute of Nanoscience of Aragon (INA) and Department of Chemical, Engineering and Environmental Technology, University of Zaragoza, C/Mariano Esquillor, s/n, I+D+i Building, 50018, Zaragoza, Spain. and Minimally Invasive Techniques Research Group (GITMI), Universidad de Zaragoza, C\Miguel Servet, 177, 50013, Zaragoza, Spain
| | - Víctor Sebastian
- Institute of Nanoscience of Aragon (INA) and Department of Chemical, Engineering and Environmental Technology, University of Zaragoza, C/Mariano Esquillor, s/n, I+D+i Building, 50018, Zaragoza, Spain. and CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Centro de Investigación Biomédica en Red, C/Monforte de Lemos 3-5, Pabellón 11, 28029 Madrid, Spain
| | - Edurne Imbuluzqueta
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, C/Irunlarrea 1, E-31008 Pamplona, Spain. and IdiSNA, Fundación Instituto de Investigación Sanitaria de Navarra, Recinto del Complejo Hospitalario de Navarra. Calle Irunlarrea, 3. Pamplona 31008, Spain
| | - Manuel Arruebo
- Institute of Nanoscience of Aragon (INA) and Department of Chemical, Engineering and Environmental Technology, University of Zaragoza, C/Mariano Esquillor, s/n, I+D+i Building, 50018, Zaragoza, Spain. and CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Centro de Investigación Biomédica en Red, C/Monforte de Lemos 3-5, Pabellón 11, 28029 Madrid, Spain
| | - María J Blanco-Prieto
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, C/Irunlarrea 1, E-31008 Pamplona, Spain. and IdiSNA, Fundación Instituto de Investigación Sanitaria de Navarra, Recinto del Complejo Hospitalario de Navarra. Calle Irunlarrea, 3. Pamplona 31008, Spain
| | - Jesús Santamaría
- Institute of Nanoscience of Aragon (INA) and Department of Chemical, Engineering and Environmental Technology, University of Zaragoza, C/Mariano Esquillor, s/n, I+D+i Building, 50018, Zaragoza, Spain. and CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Centro de Investigación Biomédica en Red, C/Monforte de Lemos 3-5, Pabellón 11, 28029 Madrid, Spain
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Ansary RH, Rahman MM, Awang MB, Katas H, Hadi H, Mohamed F, Doolaanea AA, Kamaruzzaman YB. Preparation, characterization and in vitro release study of BSA-loaded double-walled glucose-poly(lactide-co-glycolide) microspheres. Arch Pharm Res 2016; 39:1242-56. [PMID: 26818028 DOI: 10.1007/s12272-016-0710-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 01/18/2016] [Indexed: 11/24/2022]
Abstract
The aim of this study was to prepare a model protein, bovine serum albumin (BSA) loaded double-walled microspheres using a fast degrading glucose core, hydroxyl-terminated poly(lactide-co-glycolide) (Glu-PLGA) and a moderate-degrading carboxyl-terminated PLGA polymers to reduce the initial burst release and to eliminate the lag phase from the release profile of PLGA microspheres. The double-walled microspheres were prepared using a modified water-in-oil-in-oil-in-water (w/o/o/w) method and single-polymer microspheres were prepared using a conventional water-in-oil-in-water (w/o/w) emulsion solvent evaporation method. The particle size, morphology, encapsulation efficiency, thermal properties, in vitro drug release and structural integrity of BSA were evaluated in this study. Double-walled microspheres prepared with Glu-PLGA and PLGA polymers with a mass ratio of 1:1 were non-porous, smooth-surfaced, and spherical in shape. A significant reduction of initial burst release was achieved for the double-walled microspheres compared to single-polymer microspheres. In addition, microspheres prepared using Glu-PLGA and PLGA polymers in a mass ratio of 1:1 exhibited continuous BSA release after the small initial burst without any lag phase. It can be concluded that the double-walled microspheres made of Glu-PLGA and PLGA polymers in a mass ratio of 1:1 can be a potential delivery system for pharmaceutical proteins.
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Affiliation(s)
- Rezaul H Ansary
- Kulliyyah of Pharmacy, International Islamic University Malaysia (IIUM), 25200, Kuantan, Malaysia
| | - Mokhlesur M Rahman
- Kulliyyah of Pharmacy, International Islamic University Malaysia (IIUM), 25200, Kuantan, Malaysia.
| | - Mohamed B Awang
- Faculty of Pharmacy, Cyberjaya University College of Medical Sciences, 63000, Cyberjaya, Malaysia
| | - Haliza Katas
- Drug Delivery and Novel Targeting Research Group, Centre for Drug Delivery Research, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, 50300, Kuala Lumpur, Malaysia
| | - Hazrina Hadi
- Kulliyyah of Pharmacy, International Islamic University Malaysia (IIUM), 25200, Kuantan, Malaysia
| | - Farahidah Mohamed
- Kulliyyah of Pharmacy, International Islamic University Malaysia (IIUM), 25200, Kuantan, Malaysia
| | - Abd Almonem Doolaanea
- Kulliyyah of Pharmacy, International Islamic University Malaysia (IIUM), 25200, Kuantan, Malaysia
| | - Yunus B Kamaruzzaman
- Kulliyyah of Science, International Islamic University Malaysia, 25200, Kuantan, Malaysia
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Goodfriend AC, Welch TR, Nguyen KT, Johnson RF, Sebastian V, Reddy SV, Forbess J, Nugent A. Thermally processed polymeric microparticles for year-long delivery of dexamethasone. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:595-600. [DOI: 10.1016/j.msec.2015.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 07/27/2015] [Accepted: 09/01/2015] [Indexed: 11/28/2022]
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McManamon C, de Silva JP, Delaney P, Morris MA, Cross GLW. Characteristics, interactions and coating adherence of heterogeneous polymer/drug coatings for biomedical devices. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 59:102-108. [PMID: 26652354 DOI: 10.1016/j.msec.2015.09.103] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 09/28/2015] [Accepted: 09/29/2015] [Indexed: 11/25/2022]
Abstract
With this rise in surgical procedures it is important to focus on the mobility and safety of the patient and reduce the infections that are associated with hip replacements. We examine the mechanical properties of gentamicin sulphate as a model antimicrobial layer for titanium-alloy based prosthetic hips to help prevent methicillin-resistant Staphylococcus aureus infection after surgery. A top layer of poly(lactic-co-glycolic acid) is added to maintain the properties of the gentamicin sulphate as well as providing a drug delivery system. Through the use of nanoindentation and micro-scratch techniques it is possible to determine the mechanical and adhesive properties of this system. Nanoindentation determined the modulus values for the poly(lactic-co-glycolic acid) and gentamicin sulphate materials to be 8.9 and 5.2GPa, respectively. Micro-scratch established that the gentamicin sulphate layer is strongly adhered to the Ti alloy and forces of 30N show no cohesive or adhesive failure. It was determined that the poly(lactic-co-glycolic acid) is ductile in nature and delaminates from the gentamicin sulphate layer of at 0.5N.
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Affiliation(s)
- Colm McManamon
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland
| | - Johann P de Silva
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland; School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Paul Delaney
- Department of Chemistry, Supercritical Fluid Centre and Materials Section, University College Cork, Cork, Ireland
| | - Michael A Morris
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland; Department of Chemistry, Supercritical Fluid Centre and Materials Section, University College Cork, Cork, Ireland
| | - Graham L W Cross
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland; School of Physics, Trinity College Dublin, Dublin 2, Ireland.
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Minardi S, Pandolfi L, Taraballi F, De Rosa E, Yazdi IK, Liu X, Ferrari M, Tasciotti E. PLGA-Mesoporous Silicon Microspheres for the in Vivo Controlled Temporospatial Delivery of Proteins. ACS APPLIED MATERIALS & INTERFACES 2015; 7:16364-16373. [PMID: 26108253 DOI: 10.1021/acsami.5b03464] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In regenerative medicine, the temporospatially controlled delivery of growth factors (GFs) is crucial to trigger the desired healing mechanisms in the target tissues. The uncontrolled release of GFs has been demonstrated to cause severe side effects in the surrounding tissues. The aim of this study was to optimize a translational approach for the fine temporal and spatial control over the release of proteins, in vivo. Hence, we proposed a newly developed multiscale composite microsphere based on a core consisting of the nanostructured silicon multistage vector (MSV) and a poly(dl-lactide-co-glycolide) acid (PLGA) outer shell. Both of the two components of the resulting composite microspheres (PLGA-MSV) can be independently tailored to achieve multiple release kinetics contributing to the control of the release profile of a reporter protein in vitro. The influence of MSV shape (hemispherical or discoidal) and size (1, 3, or 7 μm) on PLGA-MSV's morphology and size distribution was investigated. Second, the copolymer ratio of the PLGA used to fabricate the outer shell of PLGA-MSV was varied. The composites were fully characterized by optical microscopy, scanning electron microscopy, ζ potential, Fourier transform infrared spectroscopy, and thermogravimetric analysis-differential scanning calorimetry, and their release kinetics over 30 days. PLGA-MSV's biocompatibility was assessed in vitro with J774 macrophages. Finally, the formulation of PLGA-MSV was selected, which concurrently provided the most consistent microsphere size and allowed for a zero-order release kinetic. The selected PLGA-MSVs were injected in a subcutaneous model in mice, and the in vivo release of the reporter protein was followed over 2 weeks by intravital microscopy, to assess if the zero-order release was preserved. PLGA-MSV was able to retain the payload over 2 weeks, avoiding the initial burst release typical of most drug delivery systems. Finally, histological evaluation assessed the biocompatibility of the platform in vivo.
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Affiliation(s)
- Silvia Minardi
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
- ‡Institute of Science and Technology for Ceramics, National Research Council of Italy, Via Granarolo 64, 48018 Faenza, Ravenna, Italy
| | - Laura Pandolfi
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
- §College of Materials Science and Engineering, University of Chinese Academy of Science, 19A Yuquanlu, Beijing 100049, China
| | - Francesca Taraballi
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
| | - Enrica De Rosa
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
| | - Iman K Yazdi
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
| | - Xeuwu Liu
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
| | - Mauro Ferrari
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
| | - Ennio Tasciotti
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
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Alcalá-Alcalá S, Benítez-Cardoza CG, Lima-Muñoz EJ, Piñón-Segundo E, Quintanar-Guerrero D. Evaluation of a combined drug-delivery system for proteins assembled with polymeric nanoparticles and porous microspheres; characterization and protein integrity studies. Int J Pharm 2015; 489:139-47. [DOI: 10.1016/j.ijpharm.2015.04.074] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 04/04/2015] [Accepted: 04/27/2015] [Indexed: 11/30/2022]
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Hamid Akash MS, Rehman K, Chen S. Natural and Synthetic Polymers as Drug Carriers for Delivery of Therapeutic Proteins. POLYM REV 2015. [DOI: 10.1080/15583724.2014.995806] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Alvarado HL, Abrego G, Garduño-Ramirez ML, Clares B, Calpena AC, García ML. Design and optimization of oleanolic/ursolic acid-loaded nanoplatforms for ocular anti-inflammatory applications. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2015; 11:521-30. [PMID: 25659643 DOI: 10.1016/j.nano.2015.01.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 12/09/2014] [Accepted: 01/15/2015] [Indexed: 01/11/2023]
Abstract
Oleanolic acid (OA) and ursolic acid (UA) are ubiquitous pentacyclic triterpenes compounds in plants with great interest as anti-inflammatory therapeutics. The aim of this study was the design and optimization of polymeric nanoparticles (NPs) loaded with natural and synthetic mixtures (NM, SM) of these drugs for ophthalmic administration. A 2(3) + star central rotatable composite design was employed to perform the experiments. Results showed optimal and stable formulations with suitable physicochemical properties (mean diameter<225 nm), homogeneous distribution (polydispersity index∼0.1), negatively charged surface (∼-27 mV) and high entrapment efficiency (∼77%). Release and corneal permeation studies showed that NM release was faster than SM. Amounts of drug retained in the corneal tissue were also higher for NM. In vitro and in vivo tests showed no signs of irritation or toxicity and successful in vivo anti-inflammatory efficacy for both formulations, being NM-OA/UA NPs the most effective. From the clinical editor: Oleanolic acid (OA) and ursolic acid (UA) are compounds found in plants with anti-inflammatory properties. The authors in this paper designed nanoparticles (NPs) using poly(dl-lactide-coglycolide) acid (PLGA) loaded with these compounds for ophthalmic administration. Both in vitro and in vivo experiments showed no toxicity and significant anti-inflammatory efficacy. This may provide new drugs for ocular anti-inflammatory treatment.
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Affiliation(s)
- Helen L Alvarado
- Department of Physical Chemistry, Faculty of Pharmacy, University of Barcelona, Barcelona, Spain
| | - Guadalupe Abrego
- Department of Physical Chemistry, Faculty of Pharmacy, University of Barcelona, Barcelona, Spain
| | - María L Garduño-Ramirez
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, México
| | - Beatriz Clares
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Granada, Spain.
| | - Ana C Calpena
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Barcelona, Barcelona, Spain
| | - María L García
- Department of Physical Chemistry, Faculty of Pharmacy, University of Barcelona, Barcelona, Spain
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Dixit K, Athawale RB, Singh S. Quality control of residual solvent content in polymeric microparticles. J Microencapsul 2015; 32:107-22. [DOI: 10.3109/02652048.2014.995730] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Schwendeman SP, Shah RB, Bailey BA, Schwendeman AS. Injectable controlled release depots for large molecules. J Control Release 2014; 190:240-53. [PMID: 24929039 PMCID: PMC4261190 DOI: 10.1016/j.jconrel.2014.05.057] [Citation(s) in RCA: 139] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 05/28/2014] [Indexed: 11/23/2022]
Abstract
Biodegradable, injectable depot formulations for long-term controlled drug release have improved therapy for a number of drug molecules and led to over a dozen highly successful pharmaceutical products. Until now, success has been limited to several small molecules and peptides, although remarkable improvements have been accomplished in some of these cases. For example, twice-a-year depot injections with leuprolide are available compared to the once-a-day injection of the solution dosage form. Injectable depots are typically prepared by encapsulation of the drug in poly(lactic-co-glycolic acid) (PLGA), a polymer that is used in children every day as a resorbable suture material, and therefore, highly biocompatible. PLGAs remain today as one of the few "real world" biodegradable synthetic biomaterials used in US FDA-approved parenteral long-acting-release (LAR) products. Despite their success, there remain critical barriers to the more widespread use of PLGA LARproducts, particularly for delivery of more peptides and other large molecular drugs, namely proteins. In this review, we describe key concepts in the development of injectable PLGA controlled-release depots for peptides and proteins, and then use this information to identify key issues impeding greater widespread use of PLGA depots for this class of drugs. Finally, we examine important approaches, particularly those developed in our research laboratory, toward overcoming these barriers to advance commercial LAR development.
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Affiliation(s)
- Steven P Schwendeman
- Department of Pharmaceutical Sciences, The Biointerfaces Institute, North Campus Research Complex, University of Michigan, 2800 Plymouth Road, Ann Arbor, MI 48109, USA; Department of Biomedical Engineering, The Biointerfaces Institute, North Campus Research Complex, University of Michigan, 2800 Plymouth Road, Ann Arbor, MI 48109, USA
| | - Ronak B Shah
- Department of Pharmaceutical Sciences, The Biointerfaces Institute, North Campus Research Complex, University of Michigan, 2800 Plymouth Road, Ann Arbor, MI 48109, USA
| | - Brittany A Bailey
- Department of Pharmaceutical Sciences, The Biointerfaces Institute, North Campus Research Complex, University of Michigan, 2800 Plymouth Road, Ann Arbor, MI 48109, USA
| | - Anna S Schwendeman
- Department of Medicinal Chemistry, The Biointerfaces Institute, North Campus Research Complex, University of Michigan, 2800 Plymouth Road, Ann Arbor, MI 48109, USA
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Abstract
INTRODUCTION Proteins are effective biotherapeutics with applications in diverse ailments. Despite being specific and potent, their full clinical potential has not yet been realized. This can be attributed to short half-lives, complex structures, poor in vivo stability, low permeability, frequent parenteral administrations and poor adherence to treatment in chronic diseases. A sustained release system, providing controlled release of proteins, may overcome many of these limitations. AREAS COVERED This review focuses on recent development in approaches, especially polymer-based formulations, which can provide therapeutic levels of proteins over extended periods. Advances in particulate, gel-based formulations and novel approaches for extended protein delivery are discussed. Emphasis is placed on dosage form, method of preparation, mechanism of release and stability of biotherapeutics. EXPERT OPINION Substantial advancements have been made in the field of extended protein delivery via various polymer-based formulations over last decade despite the unique delivery-related challenges posed by protein biologics. A number of injectable sustained-release formulations have reached market. However, therapeutic application of proteins is still hampered by delivery-related issues. A large number of protein molecules are under clinical trials, and hence, there is an urgent need to develop new methods to deliver these highly potent biologics.
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Affiliation(s)
- Ravi Vaishya
- University of Missouri-Kansas City, Pharmaceutical Sciences , Kansas City, MO , USA
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Ishak RAH, Mortada ND, Zaki NM, El-Shamy AEHA, Awad GAS. Impact of microparticle formulation approaches on drug burst release: a level A IVIVC. J Microencapsul 2014; 31:674-84. [DOI: 10.3109/02652048.2014.913724] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Phadke KV, Manjeshwar LS, Aminabhavi TM. Biodegradable polymeric microspheres of gelatin and carboxymethyl guar gum for controlled release of theophylline. Polym Bull (Berl) 2014. [DOI: 10.1007/s00289-014-1145-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Samadi N, Abbadessa A, Di Stefano A, van Nostrum C, Vermonden T, Rahimian S, Teunissen E, van Steenbergen M, Amidi M, Hennink W. The effect of lauryl capping group on protein release and degradation of poly(d,l-lactic-co-glycolic acid) particles. J Control Release 2013; 172:436-43. [DOI: 10.1016/j.jconrel.2013.05.034] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 05/28/2013] [Accepted: 05/30/2013] [Indexed: 11/30/2022]
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