1
|
Zeng H, Song J, Li Y, Guo C, Zhang Y, Yin T, He H, Gou J, Tang X. Effect of hydroxyethyl starch on drug stability and release of semaglutide in PLGA microspheres. Int J Pharm 2024; 654:123991. [PMID: 38471578 DOI: 10.1016/j.ijpharm.2024.123991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 03/05/2024] [Accepted: 03/10/2024] [Indexed: 03/14/2024]
Abstract
The degradation of peptide drugs limits the application of peptide drug microspheres. Structural changes of peptides at the water-oil interface and the destruction of their spatial structure in the complex microenvironment during polymer degradation can affect drug release and in vivo biological activity. This study demonstrates that adding hydroxyethyl starch (HES) to the internal aqueous phase (W1) significantly enhances the stability of semaglutide and optimizes its release behavior in PLGA microspheres. The results showed that this improvement was due to a spontaneous exothermic reaction (ΔH = -132.20 kJ mol-1) facilitated by hydrogen bonds. Incorporating HES into the internal aqueous phase using the water-in-oil-in-water (W1/O/W2) emulsion method yielded PLGA microspheres with a high encapsulation rate of 94.38 %. Moreover, microspheres with HES demonstrated well-controlled drug release over 44 days, unlike the slower and incomplete release in microspheres without HES. The optimized h-MG2 formulation achieved a more complete drug release (83.23 %) and prevented 30.65 % of drug loss compared to the HES-free microspheres within the same period. Additionally, the optimized semaglutide microspheres provided nearly three weeks of glycemic control with adequate safety. In conclusion, adding HES to the internal aqueous phase improved the in-situ drug stability and release behavior of semaglutide-loaded PLGA microspheres, effectively increasing the peptide drug payload in PLGA microspheres.
Collapse
Affiliation(s)
- Han Zeng
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, PR China
| | - Jiaxin Song
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, PR China
| | - Yiyao Li
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, PR China
| | - Chen Guo
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, PR China
| | - Yu Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, PR China
| | - Tian Yin
- Faculty of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, PR China
| | - Haibing He
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, PR China
| | - Jingxin Gou
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, PR China.
| | - Xing Tang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, PR China.
| |
Collapse
|
2
|
Deng Q, Lin P, Gu H, Zhuang X, Wang F. Silk Protein-Based Nanoporous Microsphere for Controllable Drug Delivery through Self-Assembly in Ionic Liquid System. Biomacromolecules 2024; 25:1527-1540. [PMID: 38307005 DOI: 10.1021/acs.biomac.3c01104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2024]
Abstract
Ionic liquids (ILs) showed a promising application prospect in the field of biomedicine due to their unique recyclability, modifiability, and structure adjustability. In this study, nanoporous microsphere of silk protein and blending with poly(d,l-lactic acid) as model drug delivery was fabricated, respectively, through an IL-induced self-assembly method. Their morphology, structure, and thermal properties were comparably investigated through scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, differential scanning calorimetry, X-ray diffraction, and thermogravimetric analyses, and the interaction mechanisms were also discussed to elucidate the effect of structure on drug delivery kinetics. The pure protein exhibited a bigger nanopore size in the microsphere compared to the composite one, facilitating more effective drug loading up to 88.7%. However, drug release was over 53.5% for the composite during initial 4 h, while pure protein was only about half of the composite. Both of them exhibited sustained slow release after 24 h and anticancer efficacy. Furthermore, the favorable compatibility between drug and microsphere vehicle was found and experienced improved thermal stability upon encapsulation, which could protect the drug molecules in high temperature at 200 °C. When the protein and its composite self-assembled to microspheres in ILs due to electrostatic and hydrophobic interaction, the drug could be infiltrated into the nanoporous matrix through biophysical action, and the protein structure displayed reversible transition during delivery. The sustained slow release from pure SF was attributed to the high β-sheet block action and strong drug-protein interactions, whose strength could be tuned through blending poly(d,l-lactic acid) with protein. These findings indicated that the SF-based nanoporous microspheres formed from IL self-assembled system are an ideal and potential drug delivery vehicle which can be incorporated into various biomaterials in the future.
Collapse
Affiliation(s)
- Qianqian Deng
- Center of Analysis and Testing, Nanjing Normal University, Nanjing 210023, China
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Ping Lin
- Center of Analysis and Testing, Nanjing Normal University, Nanjing 210023, China
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Hanling Gu
- Center of Analysis and Testing, Nanjing Normal University, Nanjing 210023, China
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xincheng Zhuang
- Center of Analysis and Testing, Nanjing Normal University, Nanjing 210023, China
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Fang Wang
- Center of Analysis and Testing, Nanjing Normal University, Nanjing 210023, China
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| |
Collapse
|
3
|
Sunazuka Y, Ueda K, Higashi K, Wada K, Moribe K. Mechanistic Analysis of Temperature-Dependent Curcumin Release from Poly(lactic-co-glycolic acid)/Poly(lactic acid) Polymer Nanoparticles. Mol Pharm 2024; 21:1424-1435. [PMID: 38324797 DOI: 10.1021/acs.molpharmaceut.3c01066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
In this study, we investigated the mechanism of curcumin (CUR) release from poly(lactic-co-glycolic acid) (PLGA) and poly(lactic acid) (PLA) nanoparticles (NPs) by evaluating the temperature-dependent CUR release. NPs were prepared by the nanoprecipitation method using various PLGA/PLA polymers with different lactic:glycolic ratios (L:G ratios) and molecular weights. Increasing the polymer molecular weight resulted in a decrease in the particle size of NPs. The wet glass transition temperature (Tg) of PLGA/PLA NPs was lower than the intrinsic polymer Tg, which can be derived from the water absorption and nanosizing of the polymer. The reduction in Tg was more significant for the PLGA/PLA NPs with lower polymer L:G ratios and lower polymer molecular weight. The greater decrease of Tg in the lower polymer L:G ratios was possibly caused by the higher water absorption due to the more hydrophilic nature of the glycolic acid segment than that of the lactic acid segment. The efficient water absorption in PLGA/PLA NPs with lower molecular weight could cause a significant reduction of Tg as it has lower hydrophobicity. CUR release tests from the PLGA/PLA NPs exhibited enhanced CUR release with increasing temperatures, irrespective of polymer species. By fitting the CUR release profiles into mathematical models, the CUR release process was well described by an initial burst release followed by a diffusion-controlled release. The wet Tg and particle size of the PLGA/PLA NPs affected the amount and temperature dependence of the initial burst release of CUR. Above the wet Tg of NPs, the initial burst release of CUR increased sharply. Smaller particle sizes of PLGA/PLA NPs led to a higher fraction of initial CUR burst release, which was more pronounced above the wet Tg of NPs. The wet Tg and particle sizes of the PLGA/PLA NPs also influenced the diffusion-controlled CUR release. The diffusion rate of CUR in the NPs increased as the wet Tg values of the NPs decreased. The diffusion path length of CUR was affected by the particle size, with larger particle size resulting in a prolonged diffusion-controlled release of CUR. This study highlighted that for the formulation development of PLGA/PLA NPs, suitable PLGA/PLA polymers should be selected considering the physicochemical properties of PLGA/PLA NPs and their correlation with the release behavior of encapsulated drugs at the application temperature.
Collapse
Affiliation(s)
- Yushi Sunazuka
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
- Nippon Boehringer Ingelheim Co. Ltd., 6-7-5 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Keisuke Ueda
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Kenjirou Higashi
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Koichi Wada
- Nippon Boehringer Ingelheim Co. Ltd., 6-7-5 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Kunikazu Moribe
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| |
Collapse
|
4
|
Beheshtizadeh N, Gharibshahian M, Bayati M, Maleki R, Strachan H, Doughty S, Tayebi L. Vascular endothelial growth factor (VEGF) delivery approaches in regenerative medicine. Biomed Pharmacother 2023; 166:115301. [PMID: 37562236 DOI: 10.1016/j.biopha.2023.115301] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/28/2023] [Accepted: 08/05/2023] [Indexed: 08/12/2023] Open
Abstract
The utilization of growth factors in the process of tissue regeneration has garnered significant interest and has been the subject of extensive research. However, despite the fervent efforts invested in recent clinical trials, a considerable number of these studies have produced outcomes that are deemed unsatisfactory. It is noteworthy that the trials that have yielded the most satisfactory outcomes have exhibited a shared characteristic, namely, the existence of a mechanism for the regulated administration of growth factors. Despite the extensive exploration of drug delivery vehicles and their efficacy in delivering certain growth factors, the development of a reliable predictive approach for the delivery of delicate growth factors like Vascular Endothelial Growth Factor (VEGF) remains elusive. VEGF plays a crucial role in promoting angiogenesis; however, the administration of VEGF demands a meticulous approach as it necessitates precise localization and transportation to a specific target tissue. This process requires prolonged and sustained exposure to a low concentration of VEGF. Inaccurate administration of drugs, either through off-target effects or inadequate delivery, may heighten the risk of adverse reactions and potentially result in tumorigenesis. At present, there is a scarcity of technologies available for the accurate encapsulation of VEGF and its subsequent sustained and controlled release. The objective of this review is to present and assess diverse categories of VEGF administration mechanisms. This paper examines various systems, including polymeric, liposomal, hydrogel, inorganic, polyplexes, and microfluidic, and evaluates the appropriate dosage of VEGF for multiple applications.
Collapse
Affiliation(s)
- Nima Beheshtizadeh
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Iran; Regenerative Medicine group (REMED), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| | - Maliheh Gharibshahian
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran; Regenerative Medicine group (REMED), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Mohammad Bayati
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Reza Maleki
- Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), P.O. Box 33535111, Tehran, Iran.
| | - Hannah Strachan
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | - Sarah Doughty
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | - Lobat Tayebi
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| |
Collapse
|
5
|
Partain BD, Bracho-Sanchez E, Farhadi SA, Yarmola EG, Keselowsky BG, Hudalla GA, Allen KD. Intra-articular delivery of an indoleamine 2,3-dioxygenase galectin-3 fusion protein for osteoarthritis treatment in male Lewis rats. Arthritis Res Ther 2023; 25:173. [PMID: 37723593 PMCID: PMC10506271 DOI: 10.1186/s13075-023-03153-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 08/27/2023] [Indexed: 09/20/2023] Open
Abstract
OBJECTIVE Osteoarthritis (OA) is driven by low-grade inflammation, and controlling local inflammation may offer symptomatic relief. Here, we developed an indoleamine 2,3-dioxygenase and galectin-3 fusion protein (IDO-Gal3), where IDO increases the production of local anti-inflammatory metabolites and Gal3 binds carbohydrates to extend IDO's joint residence time. In this study, we evaluated IDO-Gal3's ability to alter OA-associated inflammation and pain-related behaviors in a rat model of established knee OA. METHODS Joint residence was first evaluated with an analog Gal3 fusion protein (NanoLuc™ and Gal3, NL-Gal3) that produces luminescence from furimazine. OA was induced in male Lewis rats via a medial collateral ligament and medial meniscus transection (MCLT + MMT). At 8 weeks, NL or NL-Gal3 were injected intra-articularly (n = 8 per group), and bioluminescence was tracked for 4 weeks. Next, IDO-Gal3s's ability to modulate OA pain and inflammation was assessed. Again, OA was induced via MCLT + MMT in male Lewis rats, with IDO-Gal3 or saline injected into OA-affected knees at 8 weeks post-surgery (n = 7 per group). Gait and tactile sensitivity were then assessed weekly. At 12 weeks, intra-articular levels of IL6, CCL2, and CTXII were assessed. RESULTS The Gal3 fusion increased joint residence in OA and contralateral knees (p < 0.0001). In OA-affected animals, both saline and IDO-Gal3 improved tactile sensitivity (p = 0.008), but IDO-Gal3 also increased walking velocities (p ≤ 0.033) and improved vertical ground reaction forces (p ≤ 0.04). Finally, IDO-Gal3 decreased intra-articular IL6 levels within the OA-affected joint (p = 0.0025). CONCLUSION Intra-articular IDO-Gal3 delivery provided long-term modulation of joint inflammation and pain-related behaviors in rats with established OA.
Collapse
Affiliation(s)
- Brittany D Partain
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive, Biomedical Sciences Building, Gainesville, FL, 32610, USA
| | - Evelyn Bracho-Sanchez
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive, Biomedical Sciences Building, Gainesville, FL, 32610, USA
| | - Shaheen A Farhadi
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive, Biomedical Sciences Building, Gainesville, FL, 32610, USA
| | - Elena G Yarmola
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive, Biomedical Sciences Building, Gainesville, FL, 32610, USA
| | - Benjamin G Keselowsky
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive, Biomedical Sciences Building, Gainesville, FL, 32610, USA
| | - Gregory A Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive, Biomedical Sciences Building, Gainesville, FL, 32610, USA
| | - Kyle D Allen
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive, Biomedical Sciences Building, Gainesville, FL, 32610, USA.
- Department of Orthopaedic Surgery and Sports Medicine, University of Florida, Gainesville, FL, USA.
| |
Collapse
|
6
|
Partain BD, Bracho-Sanchez E, Farhadi SA, Yarmola EG, Keselowsky BG, Hudalla GA, Allen KD. Intra-Articular Delivery of an Indoleamine 2,3-Dioxygenase Galectin-3 Fusion Protein for Osteoarthritis Treatment in Male Lewis Rats. RESEARCH SQUARE 2023:rs.3.rs-2753443. [PMID: 37131836 PMCID: PMC10153358 DOI: 10.21203/rs.3.rs-2753443/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Objective : Controlling joint inflammation can improve osteoarthritis (OA) symptoms; however, current treatments often fail to provide long-term effects. We have developed an indoleamine 2,3-dioxygenase and galectin-3 fusion protein (IDO-Gal3). IDO converts tryptophan to kynurenines, directing the local environment toward an anti-inflammatory state; Gal3 binds carbohydrates and extends IDO's joint residence time. In this study, we evaluated IDO-Gal3's ability to alter OA-associated inflammation and pain-related behaviors in a rat model of established knee OA. Methods : Joint residence was first evaluated with an analog Gal3 fusion protein (NanoLuc™ and Gal3, NL-Gal3) that produces luminescence from furimazine. OA was induced in male Lewis rats via a medial collateral ligament and medial meniscus transection (MCLT+MMT). At 8 weeks, NL or NL-Gal3 were injected intra-articularly (n=8 per group), and bioluminescence was tracked for 4 weeks. Next, IDO-Gal3's ability to modulate OA pain and inflammation was assessed. Again, OA was induced via MCLT+MMT in male Lewis rats, with IDO-Gal3 or saline injected into OA-affected knees at 8 weeks post-surgery (n=7 per group). Gait and tactile sensitivity were then assessed weekly. At 12 weeks, intra-articular levels of IL6, CCL2, and CTXII were assessed. Results : The Gal3 fusion increased joint residence in OA and contralateral knees (p<0.0001). In OA-affected animals, IDO-Gal3 improved tactile sensitivity (p=0.002), increased walking velocities (p≤0.033), and improved vertical ground reaction forces (p≤0.04). Finally, IDO-Gal3 decreased intra-articular IL6 levels within the OA-affected joint (p=0.0025). Conclusion : Intra-articular IDO-Gal3 delivery provided long-term modulation of joint inflammation and pain-related behaviors in rats with established OA.
Collapse
|
7
|
A Single Injection with Sustained-Release Microspheres and a Prime-Boost Injection of Bovine Serum Albumin Elicit the Same IgG Antibody Response in Mice. Pharmaceutics 2023; 15:pharmaceutics15020676. [PMID: 36839998 PMCID: PMC9960585 DOI: 10.3390/pharmaceutics15020676] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/06/2023] [Accepted: 02/10/2023] [Indexed: 02/19/2023] Open
Abstract
Although vaccination is still considered to be the cornerstone of public health care, the increase in vaccination coverage has stagnated for many diseases. Most of these vaccines require two or three doses to be administered across several months or years. Single-injection vaccine formulations are an effective method to overcome the logistical barrier to immunization that is posed by these multiple-injection schedules. Here, we developed subcutaneously (s.c.) injectable microspheres with a sustained release of the model antigen bovine serum albumin (BSA). The microspheres were composed of blends of two novel biodegradable multi-block copolymers consisting of amorphous, hydrophilic poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) (PCL-PEG-PCL) blocks and semi-crystalline poly(dioxanone) (PDO) blocks of different block sizes. In vitro studies demonstrated that the release of BSA could be tailored over a period of approximately four to nine weeks by changing the blend ratio of both polymers. Moreover, it was found that BSA remained structurally intact during release. Microspheres exhibiting sustained release of BSA for six weeks were selected for the in vivo study in mice. The induced BSA-specific IgG antibody titers increased up to four weeks after administration and were of the same magnitude as found in mice that received a priming and a booster dose of BSA in phosphate-buffered saline (PBS). Determination of the BSA concentration in plasma showed that in vivo release probably took place up to at least four weeks, although plasma concentrations peaked already one week after administration. The sustained-release microspheres might be a viable alternative to the conventional prime-boost immunization schedule, but a clinically relevant antigen should be incorporated to assess the full potential of these microspheres in practice.
Collapse
|
8
|
Jang W, Mun SJ, Kim SY, Bong KW. Controlled growth factor delivery via a degradable poly(lactic acid) hydrogel microcarrier synthesized using degassed micromolding lithography. Colloids Surf B Biointerfaces 2023; 222:113088. [PMID: 36577342 DOI: 10.1016/j.colsurfb.2022.113088] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 12/05/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022]
Abstract
Controlled and targeted delivery of growth factors to biological environments is important for tissue regeneration. Polylactic acid (PLA) hydrogel microparticles are attractive carriers for the delivery of therapeutic cargoes based on their superior biocompatibility and biodegradability, uniform encapsulation of cargoes, and non-requirement of organic solvents during particle synthesis. In this study, we newly present controlled growth factor delivery utilizing PLA-based hydrogel microcarriers synthesized via degassed micromolding lithography (DML). Based on the direct gelation procedure from the single-phase aqueous precursor in DML, bovine serum albumin, a model protein of growth factor, and fibroblast growth factor were encapsulated into microparticles with uniform distribution. In addition, by tuning the monomer concentration and adding a hydrolytically stable crosslinker, the release of encapsulated cargoes was efficiently controlled and extended to 2 weeks. Finally, we demonstrated the biological activity of encapsulated FGF-2 in PLA-based microparticles using a fibroblast proliferation assay.
Collapse
Affiliation(s)
- Wookyoung Jang
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Seok Joon Mun
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Soung-Yon Kim
- Department of Orthopaedic Surgery, Kangwon National University Hospital, Baengnyeong-ro 156, Chuncheon-si, Gangwon-do 24289, Republic of Korea.
| | - Ki Wan Bong
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea.
| |
Collapse
|
9
|
Preparation of size-tunable sub-200 nm PLGA-based nanoparticles with a wide size range using a microfluidic platform. PLoS One 2022; 17:e0271050. [PMID: 35925917 PMCID: PMC9352036 DOI: 10.1371/journal.pone.0271050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 06/23/2022] [Indexed: 11/19/2022] Open
Abstract
The realization of poly (lactic-co-glycolic acid) nanoparticles (PLGA NPs) from laboratory to clinical applications remains slow, partly because of the lack of precise control of each condition in the preparation process and the rich selectivity of nanoparticles with diverse characteristics. Employing PLGA NPs to establish a large range of size-controlled drug delivery systems and achieve size-selective drug delivery targeting remains a challenge for therapeutic development for different diseases. In this study, we employed a microfluidic device to control the size of PLGA NPs. PLGA, poly (ethylene glycol)-methyl ether block poly (lactic-co-glycolide) (PEG-PLGA), and blend (PLGA + PEG-PLGA) NPs were engineered with defined sizes. Blend NPs exhibit the widest size range (40–114 nm) by simply changing the flow rate conditions without changing the precursor (polymer molecular weight, concentration, and chain segment composition). A model hydrophobic drug, paclitaxel (PTX), was encapsulated in the NPs, and the PTX-loaded NPs maintained a large range of controllable NP sizes. Furthermore, size-controlled NPs were used to investigate the effect of particle size of sub-200 nm NPs on tumor cell growth. The 52 nm NPs showed higher cell growth inhibition than 109 nm NPs. Our method allows the preparation of biodegradable NPs with a large size range without changing polymer precursors as well as the nondemanding fluid conditions. In addition, our model can be applied to elucidate the role of particle sizes of sub-200 nm particles in various biomedical applications, which may help develop suitable drugs for different diseases.
Collapse
|
10
|
Rudeen KM, Liu W, Mieler WF, Kang-Mieler JJ. Simultaneous Release of Aflibercept and Dexamethasone from an Ocular Drug Delivery System. Curr Eye Res 2022; 47:1034-1042. [PMID: 35343355 PMCID: PMC9906966 DOI: 10.1080/02713683.2022.2053166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
PURPOSE Intravitreal injections of anti-vascular endothelial growth factors (anti-VEGF) are the current standard of care for patients with choroidal neovascularization (CNV) secondary to age-related macular degeneration (AMD). There is a growing subset of patients that does not respond to anti-VEGF monotherapy treatment. Some patients, however, do respond to combination therapy of corticosteroids and anti-VEGF. This treatment requires monthly/bimonthly injections of anti-VEGF and semi-annual injections of corticosteroid. A drug delivery system (DDS) that simultaneously releases multiple drugs could benefit these patients by reducing the number of injections. The purpose of this study was to characterize the simultaneous release of aflibercept and dexamethasone from a biodegradable microparticle- and nanoparticle-hydrogel DDS. METHODS Dexamethasone-loaded nanoparticles and aflibercept-loaded microparticles were created using modified single- and double-emulsion techniques, respectively. Then, microparticles and nanoparticles were embedded into a thermoresponsive, biodegradable poly(ethylene glycol)-co-(L-lactic acid) diacrylate (PEG-PLLA-DA)-N-isopropylacrylamide (NIPAAm) hydrogel DDS. Drug release studies and characterization of DDS were conducted with varying doses of microparticles and nanoparticles. RESULTS The combination aflibercept-loaded microparticle- and dexamethasone-loaded nanoparticle- hydrogel (Combo-DDS) achieved a total release time of 224 days. Small decreases were seen in swelling ratio and equilibrium water content for Combo-DDS compared to monotherapy aflibercept-loaded microparticle-hydrogel DDS (AFL-DDS) and monotherapy dexamethasone-loaded nanoparticle-hydrogel DDS (DEX-DDS). Bioactivity of aflibercept was maintained in Combo-DDS compared to AFL-DDS. CONCLUSIONS The Combo-DDS was able to extend and control the release of both aflibercept and dexamethasone simultaneously from a single DDS. This may eliminate the need for separate dosing regiments of anti-VEGF and corticosteroids for wet AMD patients.
Collapse
Affiliation(s)
- Kayla M. Rudeen
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, USA
| | - Wenqiang Liu
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, USA
| | - William F. Mieler
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, USA
| | | |
Collapse
|
11
|
Study in the stabilization of proteins encapsulated in PLGA delivery system: Effects of additives on protein encapsulation, release, and stability. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103436] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
12
|
Xu W, Wei K, Lin Z, Wu T, Li G, Wang L. Storage and release of rare earth elements in microsphere-based scaffolds for enhancing osteogenesis. Sci Rep 2022; 12:6383. [PMID: 35430599 PMCID: PMC9013357 DOI: 10.1038/s41598-022-10347-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 04/06/2022] [Indexed: 11/21/2022] Open
Abstract
In osteoporosis and diabetes, it is essential to accelerate the bone repair and regeneration process. Trace rare earth elements such as lanthanum (La) ions (La3+) with appropriate concentrations are bioactive and can effectively regulate bone tissue performances. However, few well-established bone tissue engineering scaffolds can precisely and stably release La3+ to promote bone regeneration significantly. Based on the advantages of biodegradable microspheres and microsphere-based scaffolds for controlled drug release, we developed poly(lactide-co-glycolide) (PLGA)-based microsphere-based scaffolds as both three-dimensional (3D) porous scaffolds and La3+ storage and release systems for osteogenesis. So far, there is no study about microsphere-based scaffolds to release trace La3+ to induce osteogenic differentiation of bone marrow mesenchymal stromal cells (BMSCs). PLGA microspheres co-embedded with La-doped mesoporous silica (LMS) with different amounts of doped La were sintered to prepare the LMS/PLGA (LMSP) microsphere-based scaffold. The La3+ release behavior of LMSP can be controlled by adjusting the doping amount of La in mesoporous silica (MS). All these scaffolds possessed a 3D network architecture. With the increase of La doping, LMSP can better compensate for the pH decrease caused by PLGA degradation. The combination of MS and PLGA can avoid the cytotoxicity of MS alone. All prepared LMSP scaffolds were non-cytotoxic. After BMSCs were implanted on scaffolds, LMSP could promote cells adhesion, proliferation, and osteogenic differentiation. Among these microsphere-based scaffolds, LMSP-3 with stable and higher dose La3+ release behavior showed the strongest ability to enhance the osteogenesis of BMSCs. The results showed that microsphere-based scaffolds with the ability to store and stably control the release of La3+ could effectively improve osteogenic performance, which provides a new idea for the construction of bone tissue engineering scaffolds.
Collapse
|
13
|
Gomes KB, D'Souza B, Vijayanand S, Menon I, D'Souza MJ. A Dual-Delivery Platform for Vaccination using Antigen-loaded Nanoparticles in Dissolving Microneedles. Int J Pharm 2021; 613:121393. [PMID: 34929312 DOI: 10.1016/j.ijpharm.2021.121393] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 12/08/2021] [Accepted: 12/13/2021] [Indexed: 10/19/2022]
Abstract
Effective vaccines delivered via painless methods would revolutionize the way people approach vaccinations. This study focused on the development of fast-dissolving microneedles (MNs) to deliver antigen-loaded sustained release polymeric nanoparticles (NPs), achieving a dual-delivery platform for vaccination through the skin. The platform utilizes dissolving MNs (dMNs), which penetrate to the epidermal layer of the skin and rapidly dissolve, releasing the antigen-loaded NPs. In this study, seven dissolving microneedle formulations were tested based on screening of various biocompatible and biodegradable polymers and sugars. The lead dMN formulation was selected based on optimal mechanical strength and dissolution of the needles and was loaded with poly(lactic-co-glycolic) acid (PLGA) NPs encapsulating a model influenza matrix 2 (M2) protein antigen. Antigen-loading efficiency in the needles was determined by centrifugation of the lead formulation containing various concentrations of antigen nanoparticles. Next, the reproducibility and translatability of ex vivo mechanical strength and dissolvability of the lead M2 PLGA NP-loaded dMN formulation was assessed by formulating and testing two different microneedle arrays on murine and porcine skin. Finally, the lead microneedle array was loaded with fluorescent dye NPs and evaluated for pore formation and closure in vivo in a murine model. This proof-of-concept study yielded an easy-to-formulate, well-characterized, translatable antigen NP-loaded dMN platform for transdermal vaccine administration.
Collapse
Affiliation(s)
- Keegan Braz Gomes
- Vaccine Nanotechnology Laboratory, Center for Drug Delivery, Department of Pharmaceutical Sciences, Mercer University College of Pharmacy, Mercer University Health Sciences Center, Atlanta, GA USA
| | - Bernadette D'Souza
- Department of Pharmaceutical, Social and Administrative Sciences, McWhorter School of Pharmacy, College of Health Sciences, Samford University, Birmingham, AL USA
| | - Sharon Vijayanand
- Vaccine Nanotechnology Laboratory, Center for Drug Delivery, Department of Pharmaceutical Sciences, Mercer University College of Pharmacy, Mercer University Health Sciences Center, Atlanta, GA USA
| | - Ipshita Menon
- Vaccine Nanotechnology Laboratory, Center for Drug Delivery, Department of Pharmaceutical Sciences, Mercer University College of Pharmacy, Mercer University Health Sciences Center, Atlanta, GA USA
| | - Martin J D'Souza
- Vaccine Nanotechnology Laboratory, Center for Drug Delivery, Department of Pharmaceutical Sciences, Mercer University College of Pharmacy, Mercer University Health Sciences Center, Atlanta, GA USA.
| |
Collapse
|
14
|
Kim Y, Park EJ, Kim TW, Na DH. Recent Progress in Drug Release Testing Methods of Biopolymeric Particulate System. Pharmaceutics 2021; 13:pharmaceutics13081313. [PMID: 34452274 PMCID: PMC8399039 DOI: 10.3390/pharmaceutics13081313] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 08/16/2021] [Accepted: 08/16/2021] [Indexed: 12/18/2022] Open
Abstract
Biopolymeric microparticles have been widely used for long-term release formulations of short half-life chemicals or synthetic peptides. Characterization of the drug release from microparticles is important to ensure product quality and desired pharmacological effect. However, there is no official method for long-term release parenteral dosage forms. Much work has been done to develop methods for in vitro drug release testing, generally grouped into three major categories: sample and separate, dialysis membrane, and continuous flow (flow-through cell) methods. In vitro drug release testing also plays an important role in providing insight into the in vivo performance of a product. In vitro release test with in vivo relevance can reduce the cost of conducting in vivo studies and accelerate drug product development. Therefore, investigation of the in vitro–in vivo correlation (IVIVC) is increasingly becoming an essential part of particulate formulation development. This review summarizes the principles of the in vitro release testing methods of biopolymeric particulate system with the recent research articles and discusses their characteristics including IVIVC, accelerated release testing methods, and stability of encapsulated drugs.
Collapse
Affiliation(s)
- Yejin Kim
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea; (Y.K.); (T.W.K.)
- G2GBIO, Inc., Daejeon 34054, Korea
| | | | - Tae Wan Kim
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea; (Y.K.); (T.W.K.)
| | - Dong Hee Na
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea; (Y.K.); (T.W.K.)
- Correspondence: ; Tel.: +82-2-820-5677
| |
Collapse
|
15
|
Mihalik NE, Wen S, Driesschaert B, Eubank TD. Formulation and In Vitro Characterization of PLGA/PLGA-PEG Nanoparticles Loaded with Murine Granulocyte-Macrophage Colony-Stimulating Factor. AAPS PharmSciTech 2021; 22:191. [PMID: 34169366 DOI: 10.1208/s12249-021-02049-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/11/2021] [Indexed: 02/06/2023] Open
Abstract
Granulocyte-macrophage colony-stimulating factor (GM-CSF) has demonstrated notable clinical activity in cancer immunotherapy, but it is limited by systemic toxicities, poor bioavailability, rapid clearance, and instability in vivo. Nanoparticles (NPs) may overcome these limitations and provide a mechanism for passive targeting of tumors. This study aimed to develop GM-CSF-loaded PLGA/PLGA-PEG NPs and evaluate them in vitro as a potential candidate for in vivo administration. NPs were created by a phase-separation technique that did not require toxic/protein-denaturing solvents or harsh agitation techniques and encapsulated GM-CSF in a more stable precipitated form. NP sizes were within 200 nm for enhanced permeability and retention (EPR) effect with negative zeta potentials, spherical morphology, and high entrapment efficiencies. The optimal formulation was identified by sustained release of approximately 70% of loaded GM-CSF over 24 h, alongside an average size of 143 ± 35 nm and entrapment efficiency of 84 ± 5%. These NPs were successfully freeze-dried in 5% (w/v) hydroxypropyl-β-cyclodextrin for long-term storage and further characterized. Bioactivity of released GM-CSF was determined by observing GM-CSF receptor activation on murine monocytes and remained fully intact. NPs were not cytotoxic to murine bone marrow-derived macrophages (BMDMs) at concentrations up to 1 mg/mL as determined by MTT and trypan blue exclusion assays. Lastly, NP components generated no significant transcription of inflammation-regulating genes from BMDMs compared to IFNγ+LPS "M1" controls. This report lays the preliminary groundwork to validate in vivo studies with GM-CSF-loaded PLGA/PEG-PLGA NPs for tumor immunomodulation. Overall, these data suggest that in vivo delivery will be well tolerated.
Collapse
|
16
|
Park MH, Jang SJ, Choi SH. Osteogenic Evaluation of Hydroxyapatite Scaffold Loaded With Dexamethasone in Femoral Drill Holes. In Vivo 2021; 34:1857-1862. [PMID: 32606155 DOI: 10.21873/invivo.11980] [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: 03/25/2020] [Revised: 04/06/2020] [Accepted: 04/14/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Many cases of bone damage are due to trauma and metabolic diseases. This study aimed to evaluate bone regeneration into a porous hydroxyapatite (HA) scaffold using dexamethasone (DM)-loaded polymeric microspheres. MATERIALS AND METHODS Four adult dogs were used to evaluate the in vivo performance of DM-loaded microspheres immobilized on the surfaces of porous HA scaffolds. Two 5-mm drill holes were created in both the left and right femurs of each dog. The experimental groups included a control group (drill holes filled with HA scaffold alone), a DM 20 group (holes filled with DM-loaded HA scaffold with 20 mg DM per scaffold), and a DM 100 group (hole filled with DM-loaded HA scaffold with 100 mg DM per scaffold). Resulting bone volume percentages and bone mineral densities were calculated by examing micro-computed tomographic (CT) images. RESULTS The DM-loaded HA scaffold groups showed a gradual periosteal reaction two weeks after insertion of the HA scaffold into the femoral drill holes. Four weeks after HA scaffold insertion, the periosteal reaction in the femoral drill holes became denser. Eight weeks after insertion of DM-loaded HA scaffolds, clear images of the scaffold were observed in micro-CT images of the femoral drill hole. The DM 100 group had better bone healing tendencies (bone mineral density, bone mass, trabecular volume, bone surface, and trabecular thickness) than the DM 20 group. CONCLUSION DM-loaded HA scaffolds are suitable platforms for distributing bioactive molecules during osteogenesis in femoral drill holes.
Collapse
Affiliation(s)
- Min-Ho Park
- Department of Veterinary Surgery, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Seok Jin Jang
- Onnuri Animal Medical Center, Cheongju, Republic of Korea
| | - Seok Hwa Choi
- Department of Veterinary Surgery, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| |
Collapse
|
17
|
Wang X, Li Z, Wang C, Bai H, Wang Z, Liu Y, Bao Y, Ren M, Liu H, Wang J. Enlightenment of Growth Plate Regeneration Based on Cartilage Repair Theory: A Review. Front Bioeng Biotechnol 2021; 9:654087. [PMID: 34150725 PMCID: PMC8209549 DOI: 10.3389/fbioe.2021.654087] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 05/10/2021] [Indexed: 01/21/2023] Open
Abstract
The growth plate (GP) is a cartilaginous region situated between the epiphysis and metaphysis at the end of the immature long bone, which is susceptible to mechanical damage because of its vulnerable structure. Due to the limited regeneration ability of the GP, current clinical treatment strategies (e.g., bone bridge resection and fat engraftment) always result in bone bridge formation, which will cause length discrepancy and angular deformity, thus making satisfactory outcomes difficult to achieve. The introduction of cartilage repair theory and cartilage tissue engineering technology may encourage novel therapeutic approaches for GP repair using tissue engineered GPs, including biocompatible scaffolds incorporated with appropriate seed cells and growth factors. In this review, we summarize the physiological structure of GPs, the pathological process, and repair phases of GP injuries, placing greater emphasis on advanced tissue engineering strategies for GP repair. Furthermore, we also propose that three-dimensional printing technology will play a significant role in this field in the future given its advantage of bionic replication of complex structures. We predict that tissue engineering strategies will offer a significant alternative to the management of GP injuries.
Collapse
Affiliation(s)
- Xianggang Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - Zuhao Li
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - Chenyu Wang
- Department of Plastic and Reconstructive Surgery, The First Hospital of Jilin University, Changchun, China
| | - Haotian Bai
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - Zhonghan Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - Yuzhe Liu
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - Yirui Bao
- Department of Orthopedics, Chinese PLA 965 Hospital, Jilin, China
| | - Ming Ren
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - He Liu
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - Jincheng Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.,Orthopaedic Research Institute of Jilin Province, Changchun, China
| |
Collapse
|
18
|
Erfani A, Hanna A, Zarrintaj P, Manouchehri S, Weigandt K, Aichele CP, Ramsey JD. Biodegradable zwitterionic poly(carboxybetaine) microgel for sustained delivery of antibodies with extended stability and preserved function. SOFT MATTER 2021; 17:5349-5361. [PMID: 33954314 DOI: 10.1039/d1sm00154j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Many recent innovative treatments are based on monoclonal antibodies (mAbs) and other protein therapies. Nevertheless, sustained subcutaneous, oral or pulmonary delivery of such therapeutics is limited by the poor stability, short half-life, and non-specific interactions between the antibody (Ab) and delivery vehicle. Protein stabilizers (osmolytes) such as carboxybetaine can prevent non-specific interactions within proteins. In this work, a biodegradable zwitterionic poly(carboxybetaine), pCB, based microgel covalently crosslinked with tetra(ethylene glycol) diacrylate (TTEGDA) was synthesized for Ab encapsulation. The resulting microgels were characterized via FTIR, diffusion NMR, small-angle neutron scattering (SANS), and cell culture studies. The microgels were found to contain up to 97.5% water content and showed excellent degradability that can be tuned with crosslinking density. Cell compatibility of the microgel was studied by assessing the toxicity and immunogenicity in vitro. Cells exposed to microgel showed complete viability and no pro-inflammatory secretion of interleukin 6 (IL6) or tumor necrosis factor-alpha (TNFα). Microgel was loaded with Immunoglobulin G (as a model Ab), using a post-fabrication loading technique, and Ab sustained release from microgels of varying crosslinking densities was studied. The released Abs (especially from the high crosslinked microgels) proved to be completely active and able to bind with Ab receptors. This study opens a new horizon for scientists to use such a platform for local delivery of Abs to the desired target with minimized non-specific interactions.
Collapse
Affiliation(s)
- Amir Erfani
- School of Chemical Engineering, Oklahoma State University, Stillwater, OK 74078, USA.
| | - Abanoub Hanna
- School of Chemical Engineering, Oklahoma State University, Stillwater, OK 74078, USA.
| | - Payam Zarrintaj
- School of Chemical Engineering, Oklahoma State University, Stillwater, OK 74078, USA.
| | - Saeed Manouchehri
- School of Chemical Engineering, Oklahoma State University, Stillwater, OK 74078, USA.
| | - Katie Weigandt
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20889-6102, USA
| | - Clint P Aichele
- School of Chemical Engineering, Oklahoma State University, Stillwater, OK 74078, USA.
| | - Joshua D Ramsey
- School of Chemical Engineering, Oklahoma State University, Stillwater, OK 74078, USA.
| |
Collapse
|
19
|
Amsden B. In Vivo Degradation Mechanisms of Aliphatic Polycarbonates and Functionalized Aliphatic Polycarbonates. Macromol Biosci 2021; 21:e2100085. [PMID: 33893715 DOI: 10.1002/mabi.202100085] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/29/2021] [Indexed: 11/06/2022]
Abstract
Aliphatic polycarbonates (APCs) have been studied for decades but have not been as utilized as aliphatic polyesters in biomaterial applications such as drug delivery and tissue engineering. With the recognition that functionalized aliphatic polymers can be readily synthesized, increased attention is being paid to these materials. A frequently provided reason for utilizing these polymers is that they degrade to form diols and carbon dioxide. However, depending on the structure and molecular weight of the APC, degradation may not occur. In this review, the mechanisms by which APCs and functionalized APCs have been found to degrade in vivo are examined with the objective of providing guidance in the continued development of these polymers as biomaterials.
Collapse
Affiliation(s)
- Brian Amsden
- Department of Chemical Engineering, Queen's University, Kingston, K7L 3N6, Canada
| |
Collapse
|
20
|
Mahdi WA, Hussain A, Ramzan M, Faruk A, Bukhari SI, Dev A. Pluronic-Coated Biogenic Gold Nanoparticles for Colon Delivery of 5-Fluorouracil: In vitro and Ex vivo Studies. AAPS PharmSciTech 2021; 22:64. [PMID: 33533992 DOI: 10.1208/s12249-021-01922-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 01/04/2021] [Indexed: 12/14/2022] Open
Abstract
The aim of the study was to prepare 5-fluorouracil (5-FU)-loaded biogenic gold nanoparticles with pluronic-based coating (PFGNPs), their optimization (full factorial predicted OBPN-1) and in vitro-ex vivo evaluation. Several formulations were prepared, selected for optimization using Design Expert®, and compared for morphology, 5-FU release kinetics, compatibility, cell line toxicity, in vitro hemocompatibility, and ex vivo intestinal permeation across the rat duodenum, jejunum, and ileum. The pluronic-coated 5-FU-carrying GNPs were spherical, 29.11-178.21 nm in diameter, with a polydispersity index (PDI) range of 0.191-292, and a zeta potential (ZP) range of 11.19-29.21 (-mV). The optimized OBPN-1 (desirability = 0.95) demonstrated optimum size (175.1 nm), %DL as 73.8%, ZP as 21.7 mV, % drug release (DR) as 75.7%, and greater cytotoxicity (viability ~ 8.9%) against the colon cancer cell lines than 5-FU solution (~ 24.91%), and less hemocompatibility. Moreover, OBPN-1 exhibited 4.5-fold permeation across the rat jejunum compared with 5-FU solution. Thus, the PFGNPs exhibit high DL capacity, sustained delivery, hemocompatibility, improved efficacy, and enhanced permeation profiles compared with 5-FU solution and several other NPs preparations suggesting it is a promising formulation for effective colon cancer control with reduced side effects.
Collapse
|
21
|
Xu W, Zhao R, Wu T, Li G, Wei K, Wang L. Biodegradable calcium carbonate/mesoporous silica/poly(lactic-glycolic acid) microspheres scaffolds with osteogenesis ability for bone regeneration. RSC Adv 2021; 11:5055-5064. [PMID: 35424439 PMCID: PMC8694637 DOI: 10.1039/d0ra09958a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 01/18/2021] [Indexed: 11/21/2022] Open
Abstract
Sintered microsphere-based scaffolds provide a porous structure and high-resolution spatial organization control, show great potential for bone regeneration, mainly from biodegradable biomaterials including poly(lactic-glycolic acid) (PLGA). However, acidic monomer regeneration, mainly from biodegradable biomaterials including poly(lactic-glycolic acid) (PLGA). However, acidic monomers generated by PLGA degradation tend to cause tissue inflammation, which is the central issue of PLGA-based bone regeneration scaffolds development. In this work, calcium carbonate (CC)/hexagonal mesoporous silica (HMS)/PLGA sintered microsphere-based scaffolds were developed. The scaffolds possessed a three-dimensional (3D) network structure and 30–40% porosity. The degradation results indicated that CC/HMS/PLGA scaffolds could compensate for pH increased caused by PLGA acidic byproducts effectively. Degradation results showed that CC/HMS/PLGA scaffold could effectively compensate for the pH increase caused by PLGA acidic by-products. Composite CC additives can induce the increase of adhesive proteins in the environment, which is conducive to the adhesion of cells to scaffolds. Mesenchymal stem cells (MSCs) proliferation and osteogenic differentiation were evaluated by CCK-8 assay, alkaline phosphatase (ALP) activity, ALP staining, and Alizarin Red staining. The results showed that compared with HMS/PLGA scaffolds, the proliferation of MSCs cultured with CC/HMS/PLGA scaffolds was enhanced. When cultured on the CC/HMS/PLGA scaffolds, MSCs also showed significantly enhanced ALP activity and higher calcium secretion compared with the HMS/PLGA scaffolds. CC/HMS/PLGA sintered microsphere-based scaffolds provides an attractive strategy for bone repair and regeneration with better performance. Sintered microsphere-based scaffolds provide a porous structure and high-resolution spatial organization control, show great potential for bone regeneration, mainly from biodegradable biomaterials including poly(lactic-glycolic acid) (PLGA).![]()
Collapse
Affiliation(s)
- Weikang Xu
- Department of Scientific Research, National Engineering Research Center for Healthcare Devices, Guangdong Key Lab of Medical Electronic Instruments and Polymer Material Products, Guangdong Institute of Medical Instruments, Institute of Health Medicine, Guangdong Academy of Sciences No. 1307 Guangzhou Avenue Central, Tianhe District Guangzhou Guangdong 510500 China +86-757-87-02-35-80.,Guangdong Provincial Bioengineering Institute (Guangzhou Sugarcane Industry Research Institute), Guangdong Academy of Sciences Jianghai Avenue Central, Haizhu District Guangzhou Guangdong 510316 China.,National Engineering Research Center for Human Tissue Restoration and Function Reconstruction, South China University of Technology Wushan Road 381 Guangzhou Guangdong 510006 China +86-757-39-38-00-98
| | - Ruifang Zhao
- Department of Scientific Research, National Engineering Research Center for Healthcare Devices, Guangdong Key Lab of Medical Electronic Instruments and Polymer Material Products, Guangdong Institute of Medical Instruments, Institute of Health Medicine, Guangdong Academy of Sciences No. 1307 Guangzhou Avenue Central, Tianhe District Guangzhou Guangdong 510500 China +86-757-87-02-35-80
| | - Tingting Wu
- Department of Scientific Research, National Engineering Research Center for Healthcare Devices, Guangdong Key Lab of Medical Electronic Instruments and Polymer Material Products, Guangdong Institute of Medical Instruments, Institute of Health Medicine, Guangdong Academy of Sciences No. 1307 Guangzhou Avenue Central, Tianhe District Guangzhou Guangdong 510500 China +86-757-87-02-35-80
| | - Guixiang Li
- Department of Scientific Research, National Engineering Research Center for Healthcare Devices, Guangdong Key Lab of Medical Electronic Instruments and Polymer Material Products, Guangdong Institute of Medical Instruments, Institute of Health Medicine, Guangdong Academy of Sciences No. 1307 Guangzhou Avenue Central, Tianhe District Guangzhou Guangdong 510500 China +86-757-87-02-35-80
| | - Kun Wei
- National Engineering Research Center for Human Tissue Restoration and Function Reconstruction, South China University of Technology Wushan Road 381 Guangzhou Guangdong 510006 China +86-757-39-38-00-98
| | - Liyan Wang
- Department of Stomatology, Foshan Woman and Children's Hospital No. 11 Renmin Xi Road, Chancheng District Foshan Guangdong 528000 China +86-757-82-96-97-89
| |
Collapse
|
22
|
Scheiner KC, Maas-Bakker RF, van Steenbergen MJ, Schwendeman SP, Hennink WE, Kok RJ. Post-loading of proangiogenic growth factors in PLGA microspheres. Eur J Pharm Biopharm 2021; 158:1-10. [DOI: 10.1016/j.ejpb.2020.10.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 10/07/2020] [Accepted: 10/10/2020] [Indexed: 02/07/2023]
|
23
|
Pham DT, Tiyaboonchai W. Fibroin nanoparticles: a promising drug delivery system. Drug Deliv 2020; 27:431-448. [PMID: 32157919 PMCID: PMC7144220 DOI: 10.1080/10717544.2020.1736208] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 02/20/2020] [Accepted: 02/25/2020] [Indexed: 01/13/2023] Open
Abstract
Fibroin is a dominant silk protein that possesses ideal properties as a biomaterial for drug delivery. Recently, the development of fibroin nanoparticles (FNPs) for various biomedical applications has been extensively studied. Due to their versatility and chemical modifiability, FNPs can encapsulate different types of therapeutic compounds, including small and big molecules, proteins, enzymes, vaccines, and genetic materials. Moreover, FNPs are able to be administered both parenterally and non-parenterally. This review summaries basic information on the silk and fibroin origin and characteristics, followed by the up-to-date data on the FNPs preparation and characterization methods. In addition, their medical applications as a drug delivery system are in-depth explored based on several administrative routes of parenteral, oral, transdermal, ocular, orthopedic, and respiratory. Finally, the challenges and suggested solutions, as well as the future outlooks of these systems are discussed.
Collapse
Affiliation(s)
- Duy Toan Pham
- Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok, Thailand
| | - Waree Tiyaboonchai
- Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok, Thailand
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, The Center of Excellence for Innovation in Chemistry (PERCH-CIC), Mahidol University, Salaya, Thailand
| |
Collapse
|
24
|
Mohajeri S, Burke-Kleinman J, Maurice DH, Amsden BG. Formulation parameters governing sustained protein delivery from degradable viscous liquid aliphatic polycarbonates. Int J Pharm 2020; 590:119965. [PMID: 33045320 DOI: 10.1016/j.ijpharm.2020.119965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/28/2020] [Accepted: 10/06/2020] [Indexed: 11/18/2022]
Abstract
Viscous liquid degradable polymers have advantages as drug depots for sustained protein delivery. We have created a new aliphatic polycarbonate for this purpose, poly(trimethylene carbonate-co-5-hydroxy trimethylene carbonate), which upon degradation retains a near neutral micro-environmental pH. As such, this copolymer is highly suited to the delivery of acid sensitive proteins. We show that the mechanism of protein release from this liquid copolymer is consistent with the formation of super-hydrated regions as a result of the osmotic activity of the solution formed upon distributed protein particle dissolution. Protein release can be manipulated by controlling polymer hydrophobicity which can be adjusted by molecular weight and choice of initiator. Moreover, protein release is highly dependent on protein solubility which impacts the osmotic activity of the solution formed upon dissolution of the protein particles while protein molecular size and isoelectric point are not as influential. As demonstrated by the release of highly bioactive vascular endothelial growth factor, formulations of this copolymer are suitable for prolonged delivery of protein therapeutics.
Collapse
Affiliation(s)
- Sara Mohajeri
- Department of Chemical Engineering, Queen's University, Kingston, Ontario K7L 3N6, Canada; Human Mobility Research Centre, Kingston General Hospital, Kingston, Ontario K7L 2V7, Canada
| | - Jonah Burke-Kleinman
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston K7L 3N6, Canada
| | - Donald H Maurice
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston K7L 3N6, Canada
| | - Brian G Amsden
- Department of Chemical Engineering, Queen's University, Kingston, Ontario K7L 3N6, Canada; Human Mobility Research Centre, Kingston General Hospital, Kingston, Ontario K7L 2V7, Canada.
| |
Collapse
|
25
|
Anderluzzi G, Schmidt ST, Cunliffe R, Woods S, Roberts CW, Veggi D, Ferlenghi I, O'Hagan DT, Baudner BC, Perrie Y. Rational design of adjuvants for subunit vaccines: The format of cationic adjuvants affects the induction of antigen-specific antibody responses. J Control Release 2020; 330:933-944. [PMID: 33152394 DOI: 10.1016/j.jconrel.2020.10.066] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 12/18/2022]
Abstract
A range of cationic delivery systems have been investigated as vaccine adjuvants, though few direct comparisons exist. To investigate the impact of the delivery platform, we prepared four cationic systems (emulsions, liposomes, polymeric nanoparticles and solid lipid nanoparticles) all containing equal concentrations of the cationic lipid dimethyldioctadecylammonium bromide in combination with the Neisseria adhesin A variant 3 subunit antigen. The formulations were physicochemically characterized and their ability to associate with cells and promote antigen processing (based on degradation of DQ-OVA, a substrate for proteases which upon hydrolysis is fluorescent) was compared in vitro and their vaccine efficacy (antigen-specific antibody responses and IFN-γ production) and biodistribution (antigen and adjuvant) were evaluated in vivo. Due to their cationic nature, all delivery systems gave high antigen loading (> 85%) with liposomes, lipid nanoparticles and emulsions being <200 nm, whilst polymeric nanoparticles were larger (~350 nm). In vitro, the particulate systems tended to promote cell uptake and antigen processing, whilst emulsions were less effective. Similarly, whilst the particulate delivery systems induced a depot (of both delivery system and antigen) at the injection site, the cationic emulsions did not. However, out of the systems tested the cationic emulsions induced the highest antibody responses. These results demonstrate that while cationic lipids can have strong adjuvant activity, their formulation platform influences their immunogenicity.
Collapse
Affiliation(s)
- Giulia Anderluzzi
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK; GSK, Siena, Italy
| | - Signe Tandrup Schmidt
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK; Department of Infectious Disease Immunology, Center for Vaccine Research, Statens Serum Institut, Artillerivej 5, Copenhagen S 2300, Denmark
| | - Robert Cunliffe
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK; GSK, Siena, Italy
| | - Stuart Woods
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK
| | - Craig W Roberts
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK
| | | | | | | | | | - Yvonne Perrie
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK.
| |
Collapse
|
26
|
Tryfonidou MA, de Vries G, Hennink WE, Creemers LB. "Old Drugs, New Tricks" - Local controlled drug release systems for treatment of degenerative joint disease. Adv Drug Deliv Rev 2020; 160:170-185. [PMID: 33122086 DOI: 10.1016/j.addr.2020.10.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 10/14/2020] [Accepted: 10/20/2020] [Indexed: 12/12/2022]
Abstract
Osteoarthritis (OA) and chronic low back pain (CLBP) caused by intervertebral disc (IVD) degeneration are joint diseases that have become major causes for loss of quality of life worldwide. Despite the unmet need, effective treatments other than invasive, and often ineffective, surgery are lacking. Systemic administration of drugs entails suboptimal local drug exposure in the articular joint and IVD. This review provides an overview of the potency of biomaterial-based drug delivery systems as novel treatment modality, with a focus on the biological effects of drug release systems that have reached translation at the level of in vivo models and relevant ex vivo models. These studies have shown encouraging results of biomaterial-based local delivery of several types of drugs, mostly inhibitors of inflammatory cytokines or other degenerative factors. Prevention of inflammation and degeneration and pain relief was achieved, although mainly in small animal models, with interventions applied at an early disease stage. Less convincing data were obtained with the delivery of regenerative factors. Multidisciplinary efforts towards tackling the discord between in vitro and in vivo release, combined with adaptations in the regulatory landscape may be needed to enhance safe and expeditious introduction of more and more effective controlled release-based treatments with the OA and CLBP patients.
Collapse
|
27
|
Wright L, Joyce P, Barnes TJ, Lundmark R, Bergström CAS, Hubert M, Prestidge CA. A Comparison of Chitosan, Mesoporous Silica and Poly(lactic-co-glycolic) Acid Nanocarriers for Optimising Intestinal Uptake of Oral Protein Therapeutics. J Pharm Sci 2020; 110:217-227. [PMID: 32979363 DOI: 10.1016/j.xphs.2020.09.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 09/17/2020] [Indexed: 12/26/2022]
Abstract
Efficacious oral delivery of therapeutic proteins remains challenging and nanoparticulate approaches are gaining interest for enhancing their permeability. In this study, we explore the ability for three comparably sized nanocarriers, with diverse physicochemical properties [i.e., chitosan (CSNP), mesoporous silica nanoparticles (MSNP) and poly(lactic-co-glycolic) acid (PLGA-NP)], to successfully facilitate epithelial uptake of a model protein, ovalbumin (OVA). We report the effect of nanoparticle surface chemistry and nanostructure on protein release, cell toxicity and the uptake mechanism in a Madin Darby Canine Kidney (MDCK) cell model of the intestinal epithelium. All nanocarriers exhibited bi-phasic OVA release kinetics with sustained and incomplete release after 4 days, and more pronounced release from MSNP than either polymeric nanocarriers. CSNP and MSNP displayed the highest cellular uptake, however CSNP was prone to significant dose-dependent toxicity attributed to the cationic surface charge. Approximately 25% of MSNP uptake was governed by a clathrin-independent endocytic mechanism, while CSNP and PLGA-NP uptake was not controlled via any endocytic mechanisms investigated herein. Furthermore, endosomal localisation was observed for CSNP and MSNP, but not for PLGA-NP. These findings may assist in the optimal choice and engineering of nanocarriers for specific intestinal permeation enhancement for oral protein delivery.
Collapse
Affiliation(s)
- Leah Wright
- UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, Australia; ARC Centre of Excellence in Bio-Nano Science, Adelaide, Australia
| | - Paul Joyce
- UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, Australia; ARC Centre of Excellence in Bio-Nano Science, Adelaide, Australia
| | - Timothy J Barnes
- UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Richard Lundmark
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Christel A S Bergström
- Department of Pharmacy, Uppsala University, Uppsala, Sweden; The Swedish Drug Delivery Center, Department of Pharmacy, Uppsala University, Uppsala, Sweden
| | - Madlen Hubert
- Department of Pharmacy, Uppsala University, Uppsala, Sweden.
| | - Clive A Prestidge
- UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, Australia; ARC Centre of Excellence in Bio-Nano Science, Adelaide, Australia.
| |
Collapse
|
28
|
Experimental Studies and Modeling of the Degradation Process of Poly(Lactic- co-Glycolic Acid) Microspheres for Sustained Protein Release. Polymers (Basel) 2020; 12:polym12092042. [PMID: 32911693 PMCID: PMC7569845 DOI: 10.3390/polym12092042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/31/2020] [Accepted: 09/07/2020] [Indexed: 11/16/2022] Open
Abstract
In this study, poly(lactic-co-glycolic acid) microspheres (PLGA MS)for controlled protein release by double emulsion-solvent evaporation were produced and characterized for their morphological and technological features. MS autocatalytic degradation was described by a mathematical model based on a Michaelis and Menten-like chemical balance. Here, for the first time MS degradation was correlated to the advancement of MS degradation front with respect to the degraded radius, derived from mass loss experiments. The model can satisfactorily describe the kinetics of advancement of the degradation front experimentally derived for all MS formulations, especially when produced at higher PLGA concentrations.
Collapse
|
29
|
Thalhauser S, Peterhoff D, Wagner R, Breunig M. Silica particles incorporated into PLGA-based in situ-forming implants exploit the dual advantage of sustained release and particulate delivery. Eur J Pharm Biopharm 2020; 156:1-10. [PMID: 32860903 DOI: 10.1016/j.ejpb.2020.08.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 07/16/2020] [Accepted: 08/20/2020] [Indexed: 11/19/2022]
Abstract
Poly (lactic-co-glycolic acid) (PLGA) in situ-forming implants are well-established drug delivery systems for controlled drug release over weeks up to months. To prevent initial burst release, which is still a major issue associated with PLGA-based implants, drugs attached to particulate carriers have been encapsulated. Unfortunately, former studies only investigated the resulting release of the soluble drugs and hence missed the potential offered by particulate drug release. In this study, we developed a system capable of releasing functional drug-carrying particles over a prolonged time. First, we evaluated the feasibility of our approach by encapsulating silica particles of different sizes (500 nm and 1 μm) and surface properties (OH or NH2 groups) into in situ-forming PLGA implants. In this way, we achieved sustained release of particles over periods ranging from 30 to 70 days. OH-carrying particles were released much more quickly when compared to NH2-modified particles. We demonstrated that the underlying release mechanisms involve size-dependent diffusion and polymer-particle interactions. Second, particles that carried covalently-attached ovalbumin (OVA) on their surfaces were incorporated into the implant. We demonstrated that OVA was released in association with the particles as functional entities over a period of 30 days. The released particle-drug conjugates maintained their colloidal stability and were efficiently taken up by antigen presenting cells. This system consisting of particles incorporated into PLGA-based in situ-forming implants offers the dual advantage of sustained and particulate release of drugs as a functional unit and has potential for future use in many applications, particularly in single-dose vaccines.
Collapse
Affiliation(s)
- Stefanie Thalhauser
- Department of Pharmaceutical Technology, University Regensburg, Universitaetsstrasse 31, 93040 Regensburg, Germany
| | - David Peterhoff
- Institute of Medical Microbiology and Hygiene, University Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Ralf Wagner
- Institute of Medical Microbiology and Hygiene, University Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany; Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Miriam Breunig
- Department of Pharmaceutical Technology, University Regensburg, Universitaetsstrasse 31, 93040 Regensburg, Germany.
| |
Collapse
|
30
|
Priwitaningrum DL, Jentsch J, Bansal R, Rahimian S, Storm G, Hennink WE, Prakash J. Apoptosis-inducing peptide loaded in PLGA nanoparticles induces anti-tumor effects in vivo. Int J Pharm 2020; 585:119535. [PMID: 32534162 DOI: 10.1016/j.ijpharm.2020.119535] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 06/04/2020] [Accepted: 06/06/2020] [Indexed: 01/17/2023]
Abstract
Induction of apoptosis in tumor cells specifically within the complex tumor microenvironment is highly desirable to kill them efficiently and to enhance the effects of chemotherapy. Second mitochondria-derived activator of caspase (Smac) is a key pro-apoptotic pathway which can be activated with a Smac mimetic peptide. However, in vivo application of peptides is hampered by several limitations such as poor pharmacokinetics, rapid elimination, enzymatic degradation, and insufficient intracellular delivery. In this study, we developed a nanosystem to deliver a Smac peptide to tumor by passive targeting. We first synthesized a chimeric peptide that consists of the 8-mer Smac peptide and a 14-mer cell penetrating peptide (CPP) and then encapsulated the Smac-CPP into polymeric nanoparticles (Smac-CPP-NPs). In vitro, Smac-CPP-NPs were rapidly internalized by 4T1 mammary tumor cells and subsequently released Smac-CPP into the cells, as shown with fluorescence microscopy. Furthermore, Smac-CPP-NPs induced apoptosis in tumor cells, as confirmed with cell viability and caspase 3/7 assays. Interestingly, combination of Smac-CPP-NPs with doxorubicin (dox), a clinically used cytostatic drug, showed combined effects in vitro in 4T1 cells. The effect was significantly better than that of SMAC-CPP-NPs alone as well as empty nanoparticles and dox. In vivo, co-treatment with Smac-CPP-NPs and free dox reduced the tumor growth to 85%. Furthermore, the combination of Smac-CPP-NPs and free dox showed reduced proliferating tumor cells (Ki-67 staining) and increased apoptotic cells (cleaved caspase-3 staining) in tumors. In conclusion, the present study demonstrates that the intracellular delivery of Smac-mimetic peptide using nanoparticle system can be an interesting strategy to attenuate the tumor growth and to potentiate the therapeutic efficacy of chemotherapy in vivo.
Collapse
Affiliation(s)
- Dwi L Priwitaningrum
- Targeted Therapeutics and Nanomedicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands; Department of Pharmaceutics, Faculty of Pharmacy, University of Sumatera Utara, Medan, Indonesia
| | - Julian Jentsch
- Targeted Therapeutics and Nanomedicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Ruchi Bansal
- Targeted Therapeutics and Nanomedicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Sima Rahimian
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Gert Storm
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Wim E Hennink
- Department of Pharmaceutics, Faculty of Pharmacy, University of Sumatera Utara, Medan, Indonesia
| | - Jai Prakash
- Targeted Therapeutics and Nanomedicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands.
| |
Collapse
|
31
|
Fodor-Kardos A, Kiss ÁF, Monostory K, Feczkó T. Sustained in vitro interferon-beta release and in vivo toxicity of PLGA and PEG-PLGA nanoparticles. RSC Adv 2020; 10:15893-15900. [PMID: 35493658 PMCID: PMC9052435 DOI: 10.1039/c9ra09928j] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 04/05/2020] [Indexed: 11/21/2022] Open
Abstract
Interferon-beta-1a (IFN-β-1a) can diminish the symptoms of relapsing-remitting multiple sclerosis. Herein, we prepared sustained drug delivery IFN-β-1a-loaded nanoparticles by a double emulsion solvent evaporation method. Bovine serum albumin (BSA) model drug was used to optimize the preparation of nanoparticles composed of four types of poly(lactic-co-glycolic acid) (PLGA) polymers and two pegylated PLGA (PEG-PLGA) polymers. Via optimization, selected PLGA and PEG-PLGA polymers were able to entrap IFN-β-1a with high encapsulation efficiency (>95%) and low size (145 nm and 163 nm, respectively). In vitro release kinetics of BSA and IFN-β showed similar tendency for PLGA and PEG-PLGA nanoparticles, respectively. Although the drug loaded nanoparticles did not show toxicity in hepatocyte cells, mild toxic effects such as pale kidney and pyelectasis were observed in the in vivo studies.
Collapse
Affiliation(s)
- Andrea Fodor-Kardos
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences Magyar Tudósok Körútja 2 H-1117 Budapest Hungary +36-88-624000 ext. 3508
- Research Institute of Biomolecular and Chemical Engineering, University of Pannonia Egyetem u. 10 H-8200 Veszprém Hungary
| | - Ádám Ferenc Kiss
- Institute of Enzymology, Research Centre for Natural Sciences Magyar Tudósok Körútja 2 H-1117 Budapest Hungary
| | - Katalin Monostory
- Institute of Enzymology, Research Centre for Natural Sciences Magyar Tudósok Körútja 2 H-1117 Budapest Hungary
| | - Tivadar Feczkó
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences Magyar Tudósok Körútja 2 H-1117 Budapest Hungary +36-88-624000 ext. 3508
- Research Institute of Biomolecular and Chemical Engineering, University of Pannonia Egyetem u. 10 H-8200 Veszprém Hungary
| |
Collapse
|
32
|
Kelly SM, Mitra A, Mathur S, Narasimhan B. Synthesis and Characterization of Rapidly Degrading Polyanhydrides as Vaccine Adjuvants. ACS Biomater Sci Eng 2020; 6:265-276. [PMID: 33463223 DOI: 10.1021/acsbiomaterials.9b01427] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
There is a currently a need to develop adjuvants that are best suited to simultaneously enhance immune responses, induce immunologic memory, improve patient compliance (i.e., reduce doses and inflammation), and provide vaccine shelf stability for stockpiling and global deployment to challenging environments. Biodegradable polyanhydrides have been investigated extensively to overcome such challenges. It has been shown that controlling copolymer composition can result in chemistry-dependent immunomodulatory capabilities. These studies have revealed that copolymers rich in sebacic acid (SA) are highly internalized by antigen presenting cells and confer improved shelf stability of encapsulated proteins, while copolymers rich in 1,8-bis(p-carboxyphenoxy)-3,6-dioxaoctane (CPTEG) also exhibit enhanced internalization by and activation of antigen presenting cells (APCs), in addition to providing superior retention of protein stability following encapsulation and release. However, to date, CPTEG:SA copolymers have not been synthesized and described. In this work, we hypothesized that new copolymers composed of CPTEG and SA would combine the advantages of both monomers in terms of enhanced thermal properties, maintaining antigenicity of encapsulated proteins following nanoparticle synthesis, and superior cellular internalization and activation by APCs, demonstrated by the upregulation of costimulatory markers CD80, CD86, and CD40, as well as the secretion of proinflammatory cytokines IL-6, IL-1β, and TNF-α. Herein, we describe the synthesis and design of novel CPTEG:SA nanoparticles with improved thermal properties, payload stability, and internalization by antigen presenting cells for applications in vaccine delivery. The performance of these new CPTEG:SA formulations was compared to that of traditional polyanhydride copolymers.
Collapse
Affiliation(s)
- Sean M Kelly
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Akash Mitra
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Srishti Mathur
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Balaji Narasimhan
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States.,Nanovaccine Institute, Iowa State University, Ames, Iowa 50011-1098, United States
| |
Collapse
|
33
|
Abstract
Mucosal surfaces are the interface between the host’s internal milieu and the external environment, and they have dual functions, serving as physical barriers to foreign antigens and as accepting sites for vital materials. Mucosal vaccines are more favored to prevent mucosal infections from the portal of entry. Although mucosal vaccination has many advantages, licensed mucosal vaccines are scarce. The most widely studied mucosal routes are oral and intranasal. Licensed oral and intranasal vaccines are composed mostly of whole cell killed or live attenuated microorganisms serving as both delivery systems and built-in adjuvants. Future mucosal vaccines should be made with more purified antigen components, which will be relatively less immunogenic. To induce robust protective immune responses against well-purified vaccine antigens, an effective mucosal delivery system is an essential requisite. Recent developments in biomaterials and nanotechnology have enabled many innovative mucosal vaccine trials. For oral vaccination, the vaccine delivery system should be able to stably carry antigens and adjuvants and resist harsh physicochemical conditions in the stomach and intestinal tract. Besides many nano/microcarrier tools generated by using natural and chemical materials, the development of oral vaccine delivery systems using food materials should be more robustly researched to expand vaccine coverage of gastrointestinal infections in developing countries. For intranasal vaccination, the vaccine delivery system should survive the very active mucociliary clearance mechanisms and prove safety because of the anatomical location of nasal cavity separated by a thin barrier. Future mucosal vaccine carriers, regardless of administration routes, should have certain common characteristics. They should maintain stability in given environments, be mucoadhesive, and have the ability to target specific tissues and cells.
Collapse
|
34
|
Scheiner KC, Coulter F, Maas-Bakker RF, Ghersi G, Nguyen TT, Steendam R, Duffy GP, Hennink WE, O’Cearbhaill ED, Kok RJ. Vascular Endothelial Growth Factor–Releasing Microspheres Based on Poly(ε-Caprolactone-PEG-ε-Caprolactone)-b-Poly(L-Lactide) Multiblock Copolymers Incorporated in a Three-Dimensional Printed Poly(Dimethylsiloxane) Cell Macroencapsulation Device. J Pharm Sci 2020; 109:863-870. [DOI: 10.1016/j.xphs.2019.10.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/11/2019] [Accepted: 10/15/2019] [Indexed: 12/12/2022]
|
35
|
Meikle TG, Drummond CJ, Conn CE. Microfluidic Synthesis of Rifampicin Loaded PLGA Nanoparticles and the Effect of Formulation on their Physical and Antibacterial Properties. Aust J Chem 2020. [DOI: 10.1071/ch19359] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The encapsulation of drugs in nanoparticles serves as an effective way to modify pharmacokinetics and therapeutic efficacy. Nanoparticles comprised of poly(d,l-lactide-co-glycolide) (PLGA) are well suited for this purpose; they are accessible using multiple synthesis methods, are highly biocompatible and biodegradable, and possess desirable drug release properties. In the present study, we have explored the effects of various formulation parameters on the physical properties of PLGA nanoparticles synthesised using a microfluidic assisted nanoprecipitation method and loaded with a model drug. PLGA nanoparticles, with diameters ranging from 165–364nm, were produced using three alternate stabilisers; poly(vinyl alcohol) (PVA), d-α-tocopheryl polyethylene glycol 1000 succinate (TPGS), and didodecyldimethylammonium bromide (DMAB). Three additional formulations used PVA in addition to 20wt-% 1,2-dioleoyl-3-trimethylammonium-propane (DOTAP), 1,2-di-O-octadecenyl-3-trimethylammonium propane (DOTMA), and oleic acid. Spectrophotometric analysis demonstrated that the use of PVA increased the loading efficiency over that of TPGS and DMAB formulations, while the inclusion of oleic acid in the PVA formulation resulted in a further 3-fold increase in loading efficiency. Invitro release studies demonstrate that the inclusion of lipid additives significantly alters release kinetics; release was most rapid and complete in the formulation containing oleic acid, while the addition of DOTAP and DOTMA significantly reduced release rates. Finally, the antimicrobial activity of each formulation was tested against Staphylococcus aureus and Bacillus cereus, with minimum inhibitory concentrations nearing or exceeding that of free rifampicin.
Collapse
|
36
|
Polley P, Gupta S, Singh R, Pradhan A, Basu SM, V. R, Yadava SK, Giri J. Protein–Sugar-Glass Nanoparticle Platform for the Development of Sustained-Release Protein Depots by Overcoming Protein Delivery Challenges. Mol Pharm 2019; 17:284-300. [DOI: 10.1021/acs.molpharmaceut.9b01022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Poulomi Polley
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, Telangana, India
| | - Shivam Gupta
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, Telangana, India
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo 113-8654, Japan
| | - Ruby Singh
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, Telangana, India
| | - Arpan Pradhan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra, India
| | - Suparna Mercy Basu
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, Telangana, India
| | - Remya V.
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, Telangana, India
| | - Sunil Kumar Yadava
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, Telangana, India
| | - Jyotsnendu Giri
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, Telangana, India
| |
Collapse
|
37
|
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: 27] [Impact Index Per Article: 5.4] [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.
Collapse
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
| |
Collapse
|
38
|
Wu C, Mu H. Lipid and PLGA Microparticles for Sustained Delivery of Protein and Peptide Drugs. Pharm Nanotechnol 2019; 8:22-32. [PMID: 31663483 DOI: 10.2174/2211738507666191029160944] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/03/2019] [Accepted: 10/16/2019] [Indexed: 01/01/2023]
Abstract
Solid lipid particles have a great potential in sustained drug delivery, the lipid excipients are solid at room temperature with a slow degradation rate. Poly (D, L-lactic-coglycolic acid) (PLGA) has been successfully clinically applied for the sustained delivery of peptide drugs. A recent study showed the advantage of hybrid PLGA-lipid microparticles (MPs) over PLGA MPs for the sustained delivery of peptide drug in vivo. In this paper, we briefly present PLGA MPs, solid lipid MPs and PLGA lipid hybrid MP prepared by the double emulsion method and the spray drying method and discuss the effects of excipients on encapsulation efficiency of protein and peptide drugs in the MPs. The pros and cons of PLGA MPs, solid lipid MPs and PLGA lipid hybrid MP as carriers for sustained delivery of protein and peptide drugs are also discussed.
Collapse
Affiliation(s)
- Chengyu Wu
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK 2100, Copenhagen, Denmark
| | - Huiling Mu
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK 2100, Copenhagen, Denmark
| |
Collapse
|
39
|
|
40
|
Kim S, Sah H. Merits of sponge-like PLGA microspheres as long-acting injectables of hydrophobic drug. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:1725-1743. [DOI: 10.1080/09205063.2019.1659712] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Seoyeon Kim
- College of Pharmacy, Ewha Womans University, Seodaemun-gu, Seoul, Republic of Korea
- Central Research Institute, Whan in Pharm. Co. Ltd, Yeongtong-gu, Suwon, Gyeonggi-do, Republic of Korea
| | - Hongkee Sah
- College of Pharmacy, Ewha Womans University, Seodaemun-gu, Seoul, Republic of Korea
| |
Collapse
|
41
|
Wang J, Li S, Chen T, Xian W, Zhang H, Wu L, Zhu W, Zeng Q. Nanoscale cationic micelles of amphiphilic copolymers based on star-shaped PLGA and PEI cross-linked PEG for protein delivery application. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:93. [PMID: 31392433 DOI: 10.1007/s10856-019-6294-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Accepted: 07/26/2019] [Indexed: 06/10/2023]
Abstract
To enhance the bioavailability of protein therapeutants and improve the stability of storage and delivery, a series of branched amphiphilic block copolymers consisting of cholic acid (CA) initiated poly(D,L-lactide-co-glycolide) (CA-PLGA) and water-soluble polyethyleneimine cross-linked polyethylene glycol (PEI-PEG) denoted as CA-PLGA-b-(PEI-PEG) were synthesized and characterized. CA-PLGA-b-(PEI-PEG) presented low cytotoxicity by MTT and cck-8 assay. The cationic CA-PLGA-b-(PEI-PEG) micelles (diameter about 100 nm and zeta potential 34-61 mV) were prepared through self-assembly method, and complexed with insulin via electrostatic interaction to obtain nanoscale micelle/insulin complexes. The micelle/insulin complexes-loaded CA-PLGA microspheres (MIC-MS, 10.4 ± 3.85 μm) were manufactured by employing a double emulsion (W1/O/W2) method. The in vitro insulin release behavior and in vivo hypoglycaemic effect of MIC-MS on streptozotocin (STZ) induced diabetic rats were compared with those of the insulin-loaded CA-PLGA microspheres (INS-MS, 7.8 ± 2.57 μm). The initial burst in vitro release of MIC-MS was markedly lower than that of INS-MS (P < 0.01), and the pharmacological availability of MIC-MS via subcutaneous administration was 148.9% relative to INS-MS. Therefore, the cationic CA-PLGA-b-(PEI-PEG) micelles can effectively increase the bioavailability of insulin in CA-PLGA microspheres and can be considered as a potential protein carrier.
Collapse
Affiliation(s)
- Jun Wang
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Shunying Li
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Tingting Chen
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Wenjiao Xian
- Department of Histology and Embryology, School of Basic Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Huiwu Zhang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Cancer Therapeutics & Drug Discovery Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Lei Wu
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Wenting Zhu
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Qingbing Zeng
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
| |
Collapse
|
42
|
Formulation, Colloidal Characterization, and In Vitro Biological Effect of BMP-2 Loaded PLGA Nanoparticles for Bone Regeneration. Pharmaceutics 2019; 11:pharmaceutics11080388. [PMID: 31382552 PMCID: PMC6723283 DOI: 10.3390/pharmaceutics11080388] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 07/15/2019] [Accepted: 07/31/2019] [Indexed: 12/12/2022] Open
Abstract
Nanoparticles (NPs) based on the polymer poly (lactide-co-glycolide) acid (PLGA) have been widely studied in developing delivery systems for drugs and therapeutic biomolecules, due to the biocompatible and biodegradable properties of the PLGA. In this work, a synthesis method for bone morphogenetic protein (BMP-2)-loaded PLGA NPs was developed and optimized, in order to carry out and control the release of BMP-2, based on the double-emulsion (water/oil/water, W/O/W) solvent evaporation technique. The polymeric surfactant Pluronic F68 was used in the synthesis procedure, as it is known to have an effect on the reduction of the size of the NPs, the enhancement of their stability, and the protection of the encapsulated biomolecule. Spherical solid polymeric NPs were synthesized, showing a reproducible multimodal size distribution, with diameters between 100 and 500 nm. This size range appears to allow the protein to act on the cell surface and at the cytoplasm level. The effect of carrying BMP-2 co-adsorbed with bovine serum albumin on the NP surface was analyzed. The colloidal properties of these systems (morphology by SEM, hydrodynamic size, electrophoretic mobility, temporal stability, protein encapsulation, and short-term release profile) were studied. The effect of both BMP2-loaded NPs on the proliferation, migration, and osteogenic differentiation of mesenchymal stromal cells from human alveolar bone (ABSC) was also analyzed in vitro.
Collapse
|
43
|
Scheiner K, Maas-Bakker RF, Nguyen TT, Duarte AM, Hendriks G, Sequeira L, Duffy GP, Steendam R, Hennink WE, Kok RJ. Sustained Release of Vascular Endothelial Growth Factor from Poly(ε-caprolactone-PEG-ε-caprolactone)- b-Poly(l-lactide) Multiblock Copolymer Microspheres. ACS OMEGA 2019; 4:11481-11492. [PMID: 31460253 PMCID: PMC6681988 DOI: 10.1021/acsomega.9b01272] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 06/18/2019] [Indexed: 05/14/2023]
Abstract
Vascular endothelial growth factor (VEGF) is the major regulating factor for the formation of new blood vessels, also known as angiogenesis. VEGF is often incorporated in synthetic scaffolds to promote vascularization and to enhance the survival of cells that have been seeded in these devices. Such applications require sustained local delivery of VEGF of around 4 weeks for stable blood vessel formation. Most delivery systems for VEGF only provide short-term release for a couple of days, followed by a release phase with very low VEGF release. We now have developed VEGF-loaded polymeric microspheres that provide sustained release of bioactive VEGF for 4 weeks. Blends of two swellable poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone)-b-poly(l-lactide) ([PCL-PEG-PCL]-b-[PLLA])-based multiblock copolymers with different PEG content and PEG molecular weight were used to prepare the microspheres. Loading of the microspheres was established by a solvent evaporation-based membrane emulsification method. The resulting VEGF-loaded microspheres had average sizes of 40-50 μm and a narrow size distribution. Optimized formulations of a 50:50 blend of the two multiblock copolymers had an average VEGF loading of 0.79 ± 0.09%, representing a high average VEGF loading efficiency of 78 ± 16%. These microspheres released VEGF continuously over 4 weeks in phosphate-buffered saline pH 7.4 at 37 °C. This release profile was preserved after repeated and long-term storage at -20 °C for up to 9 months, thereby demonstrating excellent storage stability. VEGF release was governed by diffusion through the water-filled polymer matrix, depending on PEG molecular weight and PEG content of the polymers. The bioactivity of the released VEGF was retained within the experimental error in the 4-week release window, as demonstrated using a human umbilical vein endothelial cells proliferation assay. Thus, the microspheres prepared in this study are suitable for embedment in polymeric scaffolds with the aim of promoting their functional vascularization.
Collapse
Affiliation(s)
- Karina
C. Scheiner
- Department
of Pharmaceutics, Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Roel F. Maas-Bakker
- Department
of Pharmaceutics, Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Thanh T. Nguyen
- InnoCore
Pharmaceuticals B.V., L.J. Zielstraweg 1, 9713 GX Groningen, The Netherlands
| | - Ana M. Duarte
- InnoCore
Pharmaceuticals B.V., L.J. Zielstraweg 1, 9713 GX Groningen, The Netherlands
| | - Gert Hendriks
- InnoCore
Pharmaceuticals B.V., L.J. Zielstraweg 1, 9713 GX Groningen, The Netherlands
| | - Lídia Sequeira
- InnoCore
Pharmaceuticals B.V., L.J. Zielstraweg 1, 9713 GX Groningen, The Netherlands
| | - Garry P. Duffy
- Discipline
of Anatomy, School of Medicine, National
University of Ireland Galway, University Road, H91 TK33 Galway, Ireland
| | - Rob Steendam
- InnoCore
Pharmaceuticals B.V., L.J. Zielstraweg 1, 9713 GX Groningen, The Netherlands
| | - Wim E. Hennink
- Department
of Pharmaceutics, Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Robbert J. Kok
- Department
of Pharmaceutics, Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
- E-mail: . Phone: +31 620275995. Fax: +31 30 251789
| |
Collapse
|
44
|
Often neglected: PLGA/PLA swelling orchestrates drug release: HME implants. J Control Release 2019; 306:97-107. [DOI: 10.1016/j.jconrel.2019.05.039] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 05/13/2019] [Accepted: 05/26/2019] [Indexed: 11/22/2022]
|
45
|
Arrighi A, Marquette S, Peerboom C, Denis L, Goole J, Amighi K. Development of PLGA microparticles with high immunoglobulin G-loaded levels and sustained-release properties obtained by spray-drying a water-in-oil emulsion. Int J Pharm 2019; 566:291-298. [DOI: 10.1016/j.ijpharm.2019.05.070] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 05/24/2019] [Accepted: 05/27/2019] [Indexed: 11/24/2022]
|
46
|
Zhang ZZ, Zhang HZ, Zhang ZY. 3D printed poly(ε-caprolactone) scaffolds function with simvastatin-loaded poly(lactic-co-glycolic acid) microspheres to repair load-bearing segmental bone defects. Exp Ther Med 2018; 17:79-90. [PMID: 30651767 PMCID: PMC6307523 DOI: 10.3892/etm.2018.6947] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 08/09/2018] [Indexed: 12/21/2022] Open
Abstract
Repairing critical-sized bone defects has been a major challenge for orthopedic surgeons in the clinic. The generation of functioning bone tissue scaffolds using osteogenic induction factors is a promising method to facilitate bone healing. In the present study, three-dimensional (3D) printing of a poly(lactic-co-glycolic acid) (PLGA) scaffold with simvastatin (SIM) release functioning was generated by rapid prototyping, which was incorporated with collagen for surface activation, and was finally mixed with SIM-loaded PLGA microspheres. In vitro assays with bone marrow-derived mesenchymal stem cells were conducted. For the in vivo study, scaffolds were implanted into segmental defects created on the femurs of Sprague-Dawley rats. At 4 and 12 weeks following surgery, X-ray, micro-computed tomography and histological analysis were performed in order to evaluate bone regeneration. The results demonstrated that collagen functionalization of PLGA produced better cell adhesion, while the sustained release of SIM promoted greater cell proliferation with no significant cytotoxicity, compared with the blank PCL scaffold. Furthermore, in vivo experiments also confirmed that SIM-loaded scaffolds played a significant role in promoting bone regeneration. In conclusion, the present study successfully manufactured a 3D printing PLGA scaffold with sustained SIM release, which may meet the requirements for bone healing, including good mechanical strength and efficient osteoinduction ability. Thus, the results are indicative of a promising bone substitute to be used in the clinic.
Collapse
Affiliation(s)
- Zhan-Zhao Zhang
- Shanghai Key Laboratory of Tissue Engineering, Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, P.R. China
| | - Hui-Zhong Zhang
- Shanghai Key Laboratory of Tissue Engineering, Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, P.R. China
| | - Zhi-Yong Zhang
- Shanghai Key Laboratory of Tissue Engineering, Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, P.R. China
| |
Collapse
|
47
|
Jain A, Singh SK, Arya SK, Kundu SC, Kapoor S. Protein Nanoparticles: Promising Platforms for Drug Delivery Applications. ACS Biomater Sci Eng 2018; 4:3939-3961. [DOI: 10.1021/acsbiomaterials.8b01098] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Annish Jain
- Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh 160 014, India
| | - Sumit K. Singh
- Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh 160 014, India
| | - Shailendra K. Arya
- Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh 160 014, India
| | - Subhas C. Kundu
- 3B’s Research Group, I3Bs − Biomaterials, Biodegradables and Biomimetics, University of Minho, AvePark, 4805-017 Barco, Guimarães, Portugal
| | - Sonia Kapoor
- Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh 160 014, India
- Amity Institute of Molecular Medicine and Stem Cell Research, Amity University, Noida 201 313, Uttar Pradesh, India
| |
Collapse
|
48
|
Ding D, Zhu Q. Recent advances of PLGA micro/nanoparticles for the delivery of biomacromolecular therapeutics. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:1041-1060. [DOI: 10.1016/j.msec.2017.12.036] [Citation(s) in RCA: 162] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 12/18/2017] [Accepted: 12/30/2017] [Indexed: 01/06/2023]
|
49
|
Wan F, Larsen FH, Bordallo HN, Foged C, Rantanen J, Yang M. Insight into Nanoscale Network of Spray-Dried Polymeric Particles: Role of Polymer Molecular Conformation. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36686-36692. [PMID: 30211530 DOI: 10.1021/acsami.8b12475] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Poly(lactic- co-glycolic acid) (PLGA) microparticles represent a promising formulation approach for providing steady pharmacokinetic/pharmacodynamic profiles of therapeutic drugs for a long period. Understanding and controlling the supramolecular structure of PLGA microparticles at a molecular level is a prerequisite for the rational design of well-controlled, reproducible sustained-release profiles. Herein, we reveal the role of PLGA molecular conformation in particle formation and drug release. The nanoscale network of PLGA microparticles spray-dried using the solvents with distinct polarities was investigated by using NMR and neutron scattering. By employing chemometric method, we further demonstrate the evolution of nanoscale networks in spray-dried PLGA microparticles upon water absorption. Our results indicate that PLGA molecules form more chain entanglements during spray drying when using the solvents with low polarity, where PLGA molecule adopts a more flexible, extended conformation, resulting in the network being more resistant to water absorption in spray-dried PLGA microparticles. This work underlines the role of PLGA molecular conformation in controlling formation and evolution of nanoscale network of spray-dried PLGA microparticles and will have important consequences in achieving customized drug release from the PLGA microparticles.
Collapse
Affiliation(s)
- Feng Wan
- Department of Pharmacy, Faculty of Health and Medical Sciences , University of Copenhagen , Universitetsparken 2 , 2100 Copenhagen , Denmark
| | - Flemming Hofmann Larsen
- Department of Food Science, Faculty of Science , University of Copenhagen , Rolighedsvej 26 , 1958 Frederiksberg C , Denmark
| | - Heloisa Nunes Bordallo
- Niels Bohr Institute , University of Copenhagen , Blegdamsvej 17 , 2100 Copenhagen , Denmark
| | - Camilla Foged
- Department of Pharmacy, Faculty of Health and Medical Sciences , University of Copenhagen , Universitetsparken 2 , 2100 Copenhagen , Denmark
| | - Jukka Rantanen
- Department of Pharmacy, Faculty of Health and Medical Sciences , University of Copenhagen , Universitetsparken 2 , 2100 Copenhagen , Denmark
| | - Mingshi Yang
- Department of Pharmacy, Faculty of Health and Medical Sciences , University of Copenhagen , Universitetsparken 2 , 2100 Copenhagen , Denmark
- Wuya College of Innovation , Shenyang Pharmaceutical University , Wenhua Road 103 , 110016 Shenyang , China
| |
Collapse
|
50
|
Chua HY, Lui YS, Bhuthalingam R, Agrawal R, Wong T, Preiser PR, Venkatraman S. One-step solid-oil-water emulsion for sustained bioactive ranibizumab release. Expert Opin Drug Deliv 2018; 15:1143-1156. [PMID: 30354700 DOI: 10.1080/17425247.2018.1538209] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND The advent of therapeutic proteins highlights the need for delivery systems that protect and extend the duration of its action. Ranibizumab-VEGF is one such drug used for treating wet AMD. This paper describes a facile method to sustain bioactive ranibizumab release from PLGA-based particles. METHODS Two emulsion techniques were explored namely: water-in-oil-in-water (WOW) and solid-in-oil-in-water (SOW) emulsion. The bioactivity of ranibizumab was evaluated by comparing its binding capability to VEGF, measured with ELISA to total protein measured by microBCA. RESULTS During the emulsion process, contact of ranibizumab with the water-oil interface is the main destabilizing factor and this can be prevented with the use of amphiphilic PVA and solid-state protein in WOW and SOW emulsion respectively. In vitro release of the ranibizumab-loaded particles indicated that a 15-day release could be achieved with SOW particles while the WOW particles generally suffered from a burst release. Released ranibizumab was capable of inhibiting endothelial cell growth indicating its retention of bioactivity. The suppression of burst release from the SOW particles was attributed to the relatively smooth surface morphology of the SOW microparticles. CONCLUSIONS The use of SOW encapsulation in modulating ranibizumab release while maintaining their bioactivity has been highlighted.
Collapse
Affiliation(s)
- Hui Yee Chua
- a Institute for Health Technologies, Interdisciplinary Graduate School , Nanyang Technological University , Singapore , Singapore.,b School of Materials Science and Engineering , Nanyang Technological University , Singapore , Singapore
| | - Yuan Siang Lui
- b School of Materials Science and Engineering , Nanyang Technological University , Singapore , Singapore
| | - Ramya Bhuthalingam
- b School of Materials Science and Engineering , Nanyang Technological University , Singapore , Singapore
| | | | - Tina Wong
- d Singapore Eye Research Institute , Singapore , Singapore
| | - Peter Rainer Preiser
- e School of Biological Sciences , Nanyang Technological University , Singapore , Singapore
| | - Subbu Venkatraman
- a Institute for Health Technologies, Interdisciplinary Graduate School , Nanyang Technological University , Singapore , Singapore.,b School of Materials Science and Engineering , Nanyang Technological University , Singapore , Singapore
| |
Collapse
|