1
|
Molley TG, Jiang S, Ong L, Kopecky C, Ranaweera CD, Jalandhra GK, Milton L, Kardia E, Zhou Z, Rnjak-Kovacina J, Waters SA, Toh YC, Kilian KA. Gas-modulating microcapsules for spatiotemporal control of hypoxia. Proc Natl Acad Sci U S A 2023; 120:e2217557120. [PMID: 37040415 PMCID: PMC10120079 DOI: 10.1073/pnas.2217557120] [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: 10/17/2022] [Accepted: 02/28/2023] [Indexed: 04/12/2023] Open
Abstract
Oxygen is a vital molecule involved in regulating development, homeostasis, and disease. The oxygen levels in tissue vary from 1 to 14% with deviations from homeostasis impacting regulation of various physiological processes. In this work, we developed an approach to encapsulate enzymes at high loading capacity, which precisely controls the oxygen content in cell culture. Here, a single microcapsule is able to locally perturb the oxygen balance, and varying the concentration and distribution of matrix-embedded microcapsules provides spatiotemporal control. We demonstrate attenuation of hypoxia signaling in populations of stem cells, cancer cells, endothelial cells, cancer spheroids, and intestinal organoids. Varying capsule placement, media formulation, and timing of replenishment yields tunable oxygen gradients, with concurrent spatial growth and morphogenesis in a single well. Capsule containing hydrogel films applied to chick chorioallantoic membranes encourages neovascularization, providing scope for topical treatments or hydrogel wound dressings. This platform can be used in a variety of formats, including deposition in hydrogels, as granular solids for 3D bioprinting, and as injectable biomaterials. Overall, this platform's simplicity and flexibility will prove useful for fundamental studies of oxygen-mediated processes in virtually any in vitro or in vivo format, with scope for inclusion in biomedical materials for treating injury or disease.
Collapse
Affiliation(s)
- Thomas G. Molley
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW2052, Australia
- School of Chemistry, University of New South Wales, Sydney, NSW2052, Australia
| | - Shouyuan Jiang
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW2052, Australia
| | - Louis Ong
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, QLD4000, Australia
- Centre for Biomedical Technologies, Queensland University of Technology, Kelvin Grove, QLD4059, Australia
- Max-Planck Queensland Centre, Queensland University of Technology, Kelvin Grove, QLD4059, Australia
| | - Chantal Kopecky
- School of Chemistry, University of New South Wales, Sydney, NSW2052, Australia
| | | | - Gagan K. Jalandhra
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW2052, Australia
| | - Laura Milton
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, QLD4000, Australia
- Centre for Biomedical Technologies, Queensland University of Technology, Kelvin Grove, QLD4059, Australia
| | - Egi Kardia
- School of Biomedical Sciences, University of New South Wales, Sydney, NSW2052, Australia
- Molecular and Integrative Cystic Fibrosis Research Center, University of New South Wales, Sydney, NSW2052, Australia
| | - Zeheng Zhou
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW2052, Australia
- Australian Centre for NanoMedicine, University of New South Wales, Sydney, NSW2052, Australia
| | - Jelena Rnjak-Kovacina
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW2052, Australia
| | - Shafagh A. Waters
- School of Biomedical Sciences, University of New South Wales, Sydney, NSW2052, Australia
- Molecular and Integrative Cystic Fibrosis Research Center, University of New South Wales, Sydney, NSW2052, Australia
- Australian Centre for NanoMedicine, University of New South Wales, Sydney, NSW2052, Australia
| | - Yi-Chin Toh
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, QLD4000, Australia
- Centre for Biomedical Technologies, Queensland University of Technology, Kelvin Grove, QLD4059, Australia
- Max-Planck Queensland Centre, Queensland University of Technology, Kelvin Grove, QLD4059, Australia
- Centre for Microbiome Research, Queensland University of Technology, Woolloongabba, QLD4102, Australia
| | - Kristopher A. Kilian
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW2052, Australia
- School of Chemistry, University of New South Wales, Sydney, NSW2052, Australia
- Molecular and Integrative Cystic Fibrosis Research Center, University of New South Wales, Sydney, NSW2052, Australia
| |
Collapse
|
2
|
Ji YB, Lee S, Ju HJ, Kim HE, Noh JH, Choi S, Park K, Lee HB, Kim MS. Preparation and evaluation of injectable microsphere formulation for longer sustained release of donepezil. J Control Release 2023; 356:43-58. [PMID: 36841288 DOI: 10.1016/j.jconrel.2023.02.024] [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: 11/01/2022] [Revised: 02/09/2023] [Accepted: 02/16/2023] [Indexed: 02/27/2023]
Abstract
In this study, donepezil-loaded PLGA and PLA microspheres (Dp-PLGA-M/Dp-PLA-M) and Dp-PLA-M wrapped in a polyethylene glycol-b-polycaprolactone (PC) hydrogel (Dp-PLA-M/PC) were prepared to reduce the dosing frequency of injections to treat Alzheimer's disease patients. Dp-PLGA-M and Dp-PLA-M with a uniform particle size distribution were repeatably fabricated in nearly quantitative yield and with high encapsulated Dp yields using an ultrasonic atomizer. The injectability and in vitro and in vivo Dp release, biodegradation, and inflammatory response elicited by the Dp-PLGA-M, Dp-PLA-M, and Dp-PLA-M/PC formulations were then compared. All injectable formulations showed good injectability with ease of injection, even flow, and no clogging using a syringe needle under 21-G. The injections required a force of <1 N. According to the biodegradation rate of micro-CT, GPC and NMR analyses, the biodegradation of Dp-PLA-M was slower than that of Dp-PLGA-M, and the biodegradation rate of Dp-PLA-M/PC was also slower. In the Dp release experiment, Dp-PLA-M sustained Dp for longer compared with Dp-PLGA-M. Dp-PLA-M/PC exhibited a longer sustained release pattern of two months. In vivo bioavailability of Dp-PLA-M/PC was almost 1.4 times higher than that of Dp-PLA-M and 1.9 times higher than that of Dp-PLGA-M. The variations in the Dp release patterns of Dp-PLGA-M and Dp-PLA-M were explained by differences in the degradation rates of PLGA and PLA. The sustained release of Dp by Dp-PLA-M/PC was attributed to the fact that the PC hydrogel served as a wrapping matrix for Dp-PLA-M, which could slow down the biodegradation of PLA-M, thus delaying the release of Dp from Dp-PLA-M. Dp-PLGA-M induced a higher inflammatory response compared to Dp-PLA-M/PC, suggesting that the rapid degradation of PLGA triggered a strong inflammatory response. In conclusion, Dp-PLA-M/PC is a promising injectable Dp formulation that could be used to reduce the dosing frequency of Dp injections.
Collapse
Affiliation(s)
- Yun Bae Ji
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Republic of Korea
| | - Soyeon Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Republic of Korea
| | - Hyeon Jin Ju
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Republic of Korea
| | - Hee Eun Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Republic of Korea
| | - Jung Hyun Noh
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Republic of Korea
| | - Sangdun Choi
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Republic of Korea
| | - Kinam Park
- Departments of Biomedical Engineering and Pharmaceutics, Purdue University, 206 S. Intramural Drive, West Lafayette, Indiana 47907-1791, United States of America
| | - Hai Bang Lee
- Research Institute, Medipolymers, Woncheon Dong 332-2, Suwon 16522, Republic of Korea
| | - Moon Suk Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Republic of Korea; Research Institute, Medipolymers, Woncheon Dong 332-2, Suwon 16522, Republic of Korea.
| |
Collapse
|
3
|
Bhusal A, Dogan E, Nieto D, Mousavi Shaegh SA, Cecen B, Miri AK. 3D Bioprinted Hydrogel Microfluidic Devices for Parallel Drug Screening. ACS APPLIED BIO MATERIALS 2022; 5:4480-4492. [PMID: 36037061 PMCID: PMC11375967 DOI: 10.1021/acsabm.2c00578] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Conventional high-throughput screening (HTS) platforms suffer from the need for large cell volumes, high reagent consumption, significant assembly cost, and handling efforts. The assembly of three-dimensional (3D) bioprinted hydrogel-based microfluidic chips within platforms can address these problems. We present a continuous and seamless manufacturing approach to create a bioprinted microfluidic chips with a circular pattern scalable toward HTS platforms. Digital light processing 3D bioprinting is used to tune the local permeability of our chip, made of polyethylene glycol diacrylate and cell-laden gelatin methacryloyl, for creating predefined gradients of biochemical properties. We measured the flow-induced physical characteristics, the mass transport of drug agents, and the biological features of the proposed chip. We measured reactive oxygen species from the encapsulated cells through an integrated process and showed the capacity of the hydrogel-based chip for creating drug/agent gradients. This work introduces a chip design based on a hydrogel that can be changed and could be used for modern HTS platforms such as in vitro organoids.
Collapse
Affiliation(s)
- Anant Bhusal
- Department of Mechanical Engineering, Rowan University, 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
| | - Elvan Dogan
- Department of Biomedical Engineering, New Jersey Institute of Technology, 323 Dr Martin Luther King Jr Blvd, Newark, New Jersey 07102, United States
| | - Daniel Nieto
- Department Faculty of Health, Medicine and Life Sciences, Maastricht University, Universiteitssingel 40, Maastricht 6229 ER, Netherlands
| | - Seyed Ali Mousavi Shaegh
- Orthopedic Research Center, Mashhad University of Medical Sciences, P.O. Box 9187145785, Mashhad 9187145785, Iran
- Clinical Research Unit, Ghaem Hospital, Mashhad University of Medical Sciences, P.O. Box 91735451, Mashhad 91735451, Iran
| | - Berivan Cecen
- Department of Mechanical Engineering, Rowan University, 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
- Department of Biomedical Engineering, Rowan University, Glassboro, New Jersey 08028, United States
| | - Amir K Miri
- Department of Mechanical Engineering, Rowan University, 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
- Department of Biomedical Engineering, New Jersey Institute of Technology, 323 Dr Martin Luther King Jr Blvd, Newark, New Jersey 07102, United States
| |
Collapse
|
4
|
Lambeth TR, Julian RR. Efficient Isothiocyanate Modification of Peptides Facilitates Structural Analysis by Radical-Directed Dissociation. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2022; 33:1338-1345. [PMID: 34670075 DOI: 10.1021/jasms.1c00237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Radical-directed dissociation (RDD) is a powerful technique for structural characterization of peptides in mass spectrometry experiments. Prior to analysis, a radical precursor must typically be appended to facilitate generation of a free radical. To explore the use of a radical precursor that can be easily attached in a single step, we modified peptides using a "click" reaction with iodophenyl isothiocyanate. Coupling with amine functional groups proceeds with high yields, producing stable iodophenylthiourea-modified peptides. Photodissociation yields were recorded at 266 and 213 nm for the 2-, 3-, and 4-iodo isomers of the modifier and found to be highest for the 4-iodo isomer in nearly all cases. Fragmentation of the modified peptides following collisional activation revealed favorable losses of the tag, and electronic structure calculations were used to evaluate a potential mechanism involving hydrogen transfer within the thiourea group. Examination of RDD data revealed that 4-iodobenzoic acid, 4-iodophenylthiourea, and 3-iodotyrosine yield similar fragmentation patterns for a given peptide, although differences in fragment abundance are noted. Iodophenyl isothiocyanate labeling in combination with RDD can be used to differentiate isomeric amino acids within peptides, which should facilitate simplified evaluation of isomers present in complex biological samples.
Collapse
Affiliation(s)
- Tyler R Lambeth
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Ryan R Julian
- Department of Chemistry, University of California, Riverside, California 92521, United States
| |
Collapse
|
5
|
Ivanova TA, Golubeva EN. Aliphatic Polyesters for Biomedical Purposes: Design and Kinetic Regularities of Degradation in vitro. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2022. [DOI: 10.1134/s1990793122030162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
6
|
Kupikowska-Stobba B, Grzeczkowicz M, Lewińska D. A one-step in vitro continuous flow assessment of protein release from core-shell polymer microcapsules designed for therapeutic protein delivery. Biocybern Biomed Eng 2021. [DOI: 10.1016/j.bbe.2021.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
7
|
Cho JA, Kim BJ, Hwang YJ, Woo SW, Noh TS, Suh MW. Effect and Biocompatibility of a Cross-Linked Hyaluronic Acid and Polylactide- co-glycolide Microcapsule Vehicle in Intratympanic Drug Delivery for Treating Acute Acoustic Trauma. Int J Mol Sci 2021; 22:5720. [PMID: 34072013 PMCID: PMC8198354 DOI: 10.3390/ijms22115720] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 05/22/2021] [Accepted: 05/25/2021] [Indexed: 11/17/2022] Open
Abstract
The treatment of acute hearing loss is clinically challenging due to the low efficacy of drug delivery into the inner ear. Local intratympanic administration of dexamethasone (D) and insulin-like growth factor 1 (IGF1) has been proposed for treatment, but they do not persist in the middle ear because they are typically delivered in fluid form. We developed a dual-vehicle drug delivery system consisting of cross-linked hyaluronic acid and polylactide-co-glycolide microcapsules. The effect and biocompatibility of the dual vehicle in delivering D and IGF1 were evaluated using an animal model of acute acoustic trauma. The dual vehicle persisted 10.9 times longer (8.7 days) in the middle ear compared with the control (standard-of-care vehicle, 0.8 days). The dual vehicle was able to sustain drug release over up to 1 to 2 months when indocyanine green was loaded as the drug. One-third of the animals experienced an inflammatory adverse reaction. However, it was transient with no sequelae, which was validated by micro CT findings, endoscopic examination, and histological assessment. Hearing restoration after acoustic trauma was satisfactory in both groups, which was further supported by comparable numbers of viable hair cells. Overall, the use of a dual vehicle for intratympanic D and IGF1 delivery may maximize the effect of drug delivery to the target organ because the residence time of the vehicle is prolonged.
Collapse
MESH Headings
- Animals
- Biocompatible Materials
- Biopsy
- Capsules
- Cell Count
- Dexamethasone/administration & dosage
- Disease Models, Animal
- Drug Carriers
- Drug Delivery Systems
- Endoscopy
- Evoked Potentials, Auditory, Brain Stem
- Hair Cells, Auditory, Inner
- Hearing Loss, Noise-Induced/diagnosis
- Hearing Loss, Noise-Induced/drug therapy
- Hearing Loss, Noise-Induced/etiology
- Hearing Loss, Noise-Induced/metabolism
- Hyaluronic Acid/administration & dosage
- Hyaluronic Acid/chemistry
- Injection, Intratympanic
- Mice
- Polyglactin 910/chemistry
- X-Ray Microtomography
Collapse
Affiliation(s)
- Jung-Ah Cho
- Department of Otorhinolaryngology–Head and Neck Surgery, Seoul National University Hospital, Seoul 03080, Korea; (J.-A.C.); (Y.-J.H.); (S.-W.W.); (T.-S.N.)
| | - Bong Jik Kim
- Department of Otolaryngology–Head and Neck Surgery, College of Medicine, Chungnam National University, Daejeon 35015, Korea;
- Department of Otolaryngology–Head and Neck Surgery, Chungnam National University Sejong Hospital, Sejong 30099, Korea
| | - Yu-Jung Hwang
- Department of Otorhinolaryngology–Head and Neck Surgery, Seoul National University Hospital, Seoul 03080, Korea; (J.-A.C.); (Y.-J.H.); (S.-W.W.); (T.-S.N.)
| | - Shin-Wook Woo
- Department of Otorhinolaryngology–Head and Neck Surgery, Seoul National University Hospital, Seoul 03080, Korea; (J.-A.C.); (Y.-J.H.); (S.-W.W.); (T.-S.N.)
| | - Tae-Soo Noh
- Department of Otorhinolaryngology–Head and Neck Surgery, Seoul National University Hospital, Seoul 03080, Korea; (J.-A.C.); (Y.-J.H.); (S.-W.W.); (T.-S.N.)
| | - Myung-Whan Suh
- Department of Otorhinolaryngology–Head and Neck Surgery, Seoul National University Hospital, Seoul 03080, Korea; (J.-A.C.); (Y.-J.H.); (S.-W.W.); (T.-S.N.)
| |
Collapse
|
8
|
Rountree I, Polucha C, Coulombe KLK, Munarin F. Assessing the Angiogenic Efficacy of Pleiotrophin Released from Injectable Heparin-Alginate Gels. Tissue Eng Part A 2021; 27:703-713. [PMID: 33430704 DOI: 10.1089/ten.tea.2020.0335] [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] [Indexed: 02/04/2023] Open
Abstract
With this work, we design alginate-based hydrogels for therapeutically directing revascularization and repair processes in vivo. We immobilize pleiotrophin (PTN) in injectable hydrogel formulations as the target factor to stimulate proangiogenic responses in endothelial cells. The optimized heparin-alginate/chitosan hydrogels, produced by internal crosslinking with calcium carbonate, show good biocompatibility and injectability and allow controlling the release of immobilized proteins in the subcutaneous tissue over a period of 7 days. In vitro assays, performed with translational human induced pluripotent stem cell-derived endothelial cells, and the in vivo Matrigel plug assay are conducted to demonstrate the angiogenic effects of PTN on endothelial cells. Our results indicate that PTN stimulates endothelial cell morphogenesis in vitro and the migration of endothelial cells and macrophages as soon as 4 days after injections of the developed hydrogels, promoting the formation of structures similar to the healthy granulation tissue, which is an indicator of healing in ischemic wounds. These studies provide the rationale for further investigating this novel therapeutic for pursuing increased vascular density for efficient regeneration of ischemic tissues, by leveraging the host endothelial cell population to initiate angiogenic and reparative processes in vivo. Impact statement Localized, sustained, and controlled delivery of angiogenic factors is crucial for enabling the formation of novel vascular networks in ischemic tissues. This study describes the development of an injectable heparin-alginate/collagen hydrogel for controlling the in vivo release and bioactivity of pleiotrophin (PTN), a heparin-binding factor with significant angiogenic activity. We demonstrate that PTN promotes angiogenesis in an in vitro model of hypoxia and in preclinical subcutaneous models. These results advance our understanding of PTN function in guiding therapeutic angiogenesis and are critical to inform the development of novel translational strategies for ischemic tissue repair and regeneration.
Collapse
Affiliation(s)
- Isobel Rountree
- Center for Biomedical Engineering, School of Engineering, Brown University, Providence, Rhode Island, USA
| | - Collin Polucha
- Center for Biomedical Engineering, School of Engineering, Brown University, Providence, Rhode Island, USA
| | - Kareen L K Coulombe
- Center for Biomedical Engineering, School of Engineering, Brown University, Providence, Rhode Island, USA
| | - Fabiola Munarin
- Center for Biomedical Engineering, School of Engineering, Brown University, Providence, Rhode Island, USA
| |
Collapse
|
9
|
Biocompatibility and bioactivity of an FGF-loaded microsphere-based bilayer delivery system. Acta Biomater 2020; 111:341-348. [PMID: 32428684 DOI: 10.1016/j.actbio.2020.04.048] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 04/24/2020] [Accepted: 04/26/2020] [Indexed: 12/18/2022]
Abstract
Many drug delivery systems rely on degradation or dissolution of the carrier material to regulate release. In cases where mechanical support is required during regeneration, this necessitates composite systems in which the mechanics of the implant are decoupled from the drug release profile. To address this need, we developed a system in which microspheres (MS) were sequestered in a defined location between two nanofibrous layers. This bilayer delivery system (BiLDS) enables simultaneous structural support and decoupled release profiles. To test this new system, PLGA (poly-lactide-co-glycolic acid) microspheres were prepared using a water-in-oil-in-water (w/o/w) emulsion technique and incorporated Alexa Fluor-tagged bovine serum albumin (BSA) and basic fibroblast growth factor (bFGF). These MS were secured in a defined pocket between two polycaprolactone (PCL) nanofibrous scaffolds, where the layered scaffolds provide a template for new tissue formation while enabling independent and local release from the co-delivered MS. Scanning electron microscopy (SEM) images showed that the assembled BiLDS could localize and retain MS in the central pocket that was surrounded by a continuous seal formed along the margin. Cell viability and proliferation assays showed enhanced cell activity when exposed to BiLDS containing Alexa Fluor-BSA/bFGF-loaded MS, both in vitro and in vivo. MS delivered via the BiLDS system persisted in a localized area after subcutaneous implantation for at least 4 weeks, and bFGF release increased colonization of the implant. These data establish the BiLDS technology as a sustained in vivo drug delivery platform that can localize protein and other growth factor release to a surgical site while providing a structural template for new tissue formation. STATEMENT OF SIGNIFICANCE: Localized and controlled delivery systems for the sustained release of drugs are essential. Many strategies have been developed for this purpose, but most rely on degradation (and loss of material properties) for delivery. Here, we developed a bilayer delivery system (BiLDS) that decouples the physical properties of a scaffold from its delivery kinetics. For this, biodegradable PLGA microspheres were sequestered within a central pocket of a slowly degrading nanofibrous bilayer. Using this device, we show enhanced cell activity with FGF delivery from the BiLDS both in vitro and in vivo. These data support that BiLDS can localize sustained protein and biofactor delivery to a surgical site while also serving as a mechanical scaffold for tissue repair and regeneration.
Collapse
|
10
|
Vigata M, Meinert C, Pahoff S, Bock N, Hutmacher DW. Gelatin Methacryloyl Hydrogels Control the Localized Delivery of Albumin-Bound Paclitaxel. Polymers (Basel) 2020; 12:E501. [PMID: 32102478 PMCID: PMC7077643 DOI: 10.3390/polym12020501] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/16/2020] [Accepted: 02/16/2020] [Indexed: 02/07/2023] Open
Abstract
Hydrogels are excellent candidates for the sustained local delivery of anticancer drugs, as they possess tunable physicochemical characteristics that enable to control drug release kinetics and potentially tackle the problem of systemic side effects in traditional chemotherapeutic delivery. Yet, current systems often involve complicated manufacturing or covalent bonding processes that are not compatible with regulatory or market reality. Here, we developed a novel gelatin methacryloyl (GelMA)-based drug delivery system (GelMA-DDS) for the sustained local delivery of paclitaxel-based Abraxane®, for the prevention of local breast cancer recurrence following mastectomy. GelMA-DDS readily encapsulated Abraxane® with a maximum of 96% encapsulation efficiency. The mechanical properties of the hydrogel system were not affected by drug loading. Tuning of the physical properties, by varying GelMA concentration, allowed tailoring of GelMA-DDS mesh size, where decreasing the GelMA concentration provided overall more sustained cumulative release (significant differences between 5%, 10%, and 15%) with a maximum of 75% over three months of release, identified to be released by diffusion. Additionally, enzymatic degradation, which more readily mimics the in vivo situation, followed a near zero-order rate, with a total release of the cargo at various rates (2-14 h) depending on GelMA concentration. Finally, the results demonstrated that Abraxane® delivery from the hydrogel system led to a dose-dependent reduction of viability, metabolic activity, and live-cell density of triple-negative breast cancer cells in vitro. The GelMA-DDS provides a novel and simple approach for the sustained local administration of anti-cancer drugs for breast cancer recurrence.
Collapse
Affiliation(s)
- Margaux Vigata
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Kelvin Grove, QLD 4059, Australia; (M.V.); (S.P.)
- School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty (SEF), Queensland University of Technology (QUT), Brisbane, QLD 4059, Australia
| | - Christoph Meinert
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Kelvin Grove, QLD 4059, Australia; (M.V.); (S.P.)
- School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty (SEF), Queensland University of Technology (QUT), Brisbane, QLD 4059, Australia
| | - Stephen Pahoff
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Kelvin Grove, QLD 4059, Australia; (M.V.); (S.P.)
- School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty (SEF), Queensland University of Technology (QUT), Brisbane, QLD 4059, Australia
| | - Nathalie Bock
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Kelvin Grove, QLD 4059, Australia; (M.V.); (S.P.)
- Translational Research Institute, Woolloongabba, QLD 4102, Australia
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology (QUT), Brisbane, QLD 4059, Australia
| | - Dietmar W. Hutmacher
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Kelvin Grove, QLD 4059, Australia; (M.V.); (S.P.)
- School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty (SEF), Queensland University of Technology (QUT), Brisbane, QLD 4059, Australia
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology (QUT), Brisbane, QLD 4059, Australia
- Australian Research Council Industrial Transformation Training Centre in Additive Biomanufacturing, Queensland University of Technology (QUT), Brisbane, QLD 4059, Australia
| |
Collapse
|
11
|
Heo JY, Noh JH, Park SH, Ji YB, Ju HJ, Kim DY, Lee B, Kim MS. An Injectable Click-Crosslinked Hydrogel that Prolongs Dexamethasone Release from Dexamethasone-Loaded Microspheres. Pharmaceutics 2019; 11:pharmaceutics11090438. [PMID: 31480552 PMCID: PMC6781549 DOI: 10.3390/pharmaceutics11090438] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 08/23/2019] [Accepted: 08/24/2019] [Indexed: 02/06/2023] Open
Abstract
Our purpose was to test whether a preparation of injectable formulations of dexamethasone (Dex)-loaded microspheres (Dex-Ms) mixed with click-crosslinked hyaluronic acid (Cx-HA) (or Pluronic (PH) for comparison) prolongs therapeutic levels of released Dex. Dex-Ms were prepared using a monoaxial-nozzle ultrasonic atomizer with an 85% yield of the Dex-Ms preparation, encapsulation efficiency of 80%, and average particle size of 57 μm. Cx-HA was prepared via a click reaction between transcyclooctene (TCO)-modified HA (TCO-HA) and tetrazine (TET)-modified HA (TET-HA). The injectable formulations (Dex-Ms/PH and Dex-Ms/Cx-HA) were fabricated as suspensions and became a Dex-Ms-loaded hydrogel drug depot after injection into the subcutaneous tissue of Sprague Dawley rats. Dex-Ms alone also formed a drug depot after injection. The Cx-HA hydrogel persisted in vivo for 28 days, but the PH hydrogel disappeared within six days, as evidenced by in vivo near-infrared fluorescence imaging. The in vitro and in vivo cumulative release of Dex by Dex-Ms/Cx-HA was much slower in the early days, followed by sustained release for 28 days, compared with Dex-Ms alone and Dex-Ms/PH. The reason was that the Cx-HA hydrogel acted as an external gel matrix for Dex-Ms, resulting in the retarded release of Dex from Dex-Ms. Therefore, we achieved significantly extended duration of a Dex release from an in vivo Dex-Ms-loaded hydrogel drug depot formed by Dex-Ms wrapped in an injectable click-crosslinked HA hydrogel in a minimally invasive manner. In conclusion, the Dex-Ms/Cx-HA drug depot described in this work showed excellent performance on extended in vivo delivery of Dex.
Collapse
Affiliation(s)
- Ji Yeon Heo
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Jung Hyun Noh
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Seung Hun Park
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Yun Bae Ji
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Hyeon Jin Ju
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Da Yeon Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Bong Lee
- Department of Polymer Engineering, Pukyong National University, Busan 48547, Korea
| | - Moon Suk Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea.
| |
Collapse
|
12
|
Luzardo-Álvarez A, Lamela-Gómez I, Otero-Espinar F, Blanco-Méndez J. Development, Characterization, and In Vitro Evaluation of Resveratrol-Loaded Poly-(ε-caprolactone) Microcapsules Prepared by Ultrasonic Atomization for Intra-Articular Administration. Pharmaceutics 2019; 11:E249. [PMID: 31141945 PMCID: PMC6631008 DOI: 10.3390/pharmaceutics11060249] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 05/22/2019] [Accepted: 05/23/2019] [Indexed: 12/14/2022] Open
Abstract
: Intra-articular administration of drugs to the joint in the treatment of joint disease has the potential to minimize the systemic bioavailability and the usual side-effects associated with oral drug administration. In this work, a drug delivery system is proposed to achieve an anti-inflammatory local effect using resveratrol (RSV). This study aims to develop microcapsules made of poly-(ε-caprolactone) (PCL) by ultrasonic atomization to preserve the antioxidant activity of RSV, to prevent its degradation and to suppress the inflammatory response in activated RAW 264.7 macrophages. An experimental design was performed to build a mathematical model that could estimate the effect of nozzle power and polymer concentration on particle size and encapsulation efficiency. RSV-loaded microcapsules showed adequate morphology, particle size, and loading efficiency properties. RSV formulations exhibited negligible cytotoxicity and an efficient amelioration of inflammatory responses, in terms of Nitric Oxide (NO), ROS (Reactive Oxygen Species), and lipid peroxidation in macrophages. Thus, RSV-loaded microcapsules merit consideration as a drug delivery system suitable for intra-articular administration in inflammatory disorders affecting the joint.
Collapse
Affiliation(s)
- Asteria Luzardo-Álvarez
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, School of Sciences, Campus de Lugo, University of Santiago de Compostela, Lugo 27002, Spain.
| | - Iván Lamela-Gómez
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, School of Sciences, Campus de Lugo, University of Santiago de Compostela, Lugo 27002, Spain.
| | - Francisco Otero-Espinar
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, School of Pharmacy, Campus de Santiago de Compostela, University of Santiago de Compostela, Santiago de Compostela 14875, Spain.
| | - José Blanco-Méndez
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, School of Sciences, Campus de Lugo, University of Santiago de Compostela, Lugo 27002, Spain.
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, School of Pharmacy, Campus de Santiago de Compostela, University of Santiago de Compostela, Santiago de Compostela 14875, Spain.
| |
Collapse
|
13
|
Park K, Skidmore S, Hadar J, Garner J, Park H, Otte A, Soh BK, Yoon G, Yu D, Yun Y, Lee BK, Jiang X, Wang Y. Injectable, long-acting PLGA formulations: Analyzing PLGA and understanding microparticle formation. J Control Release 2019; 304:125-134. [PMID: 31071374 DOI: 10.1016/j.jconrel.2019.05.003] [Citation(s) in RCA: 233] [Impact Index Per Article: 46.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 04/29/2019] [Accepted: 05/02/2019] [Indexed: 12/27/2022]
Abstract
Injectable, long-acting depot formulations based on poly(lactide-co-glycolide) (PLGA) have been used clinically since 1989. Despite 30 years of development, however, there are only 19 different drugs in PLGA formulations approved by the U.S. Food and Drug Administration (FDA). The difficulty in developing depot formulations stems in large part from the lack of a clear molecular understanding of PLGA polymers and a mechanistic understanding of PLGA microparticles formation. The difficulty is readily apparent by the absence of approved PLGA-based generic products, limiting access to affordable medicines to all patients. PLGA has been traditionally characterized by its molecular weight, lactide:glycolide (L:G) ratio, and end group. Characterization of non-linear PLGA, such as star-shaped glucose-PLGA, has been difficult due to the shortcomings in analytical methods typically used for PLGA. In addition, separation of a mixture of different PLGAs has not been previously identified, especially when only their L:G ratios are different while the molecular weights are the same. New analytical methods were developed to determine the branch number of star-shaped PLGAs, and to separate PLGAs based on L:G ratios regardless of the molecular weight. A deeper understanding of complex PLGA formulations can be achieved with these new characterization methods. Such methods are important for further development of not only PLGA depot formulations with controllable drug release kinetics, but also generic formulations of current brand-name products.
Collapse
Affiliation(s)
- Kinam Park
- Purdue University, Biomedical Engineering and Pharmaceutics, 206 S. Martin Jischke Drive, West Lafayette, IN 47907, USA; Akina, Inc., 3495 Kent Avenue, Suite A200, West Lafayette, IN 47906, USA.
| | - Sarah Skidmore
- Akina, Inc., 3495 Kent Avenue, Suite A200, West Lafayette, IN 47906, USA
| | - Justin Hadar
- Akina, Inc., 3495 Kent Avenue, Suite A200, West Lafayette, IN 47906, USA
| | - John Garner
- Akina, Inc., 3495 Kent Avenue, Suite A200, West Lafayette, IN 47906, USA
| | - Haesun Park
- Akina, Inc., 3495 Kent Avenue, Suite A200, West Lafayette, IN 47906, USA
| | - Andrew Otte
- Purdue University, Biomedical Engineering and Pharmaceutics, 206 S. Martin Jischke Drive, West Lafayette, IN 47907, USA
| | - Bong Kwan Soh
- Purdue University, Biomedical Engineering and Pharmaceutics, 206 S. Martin Jischke Drive, West Lafayette, IN 47907, USA
| | - Gwangheum Yoon
- Purdue University, Biomedical Engineering and Pharmaceutics, 206 S. Martin Jischke Drive, West Lafayette, IN 47907, USA
| | - Dijia Yu
- Purdue University, Biomedical Engineering and Pharmaceutics, 206 S. Martin Jischke Drive, West Lafayette, IN 47907, USA
| | - Yeonhee Yun
- Purdue University, Biomedical Engineering and Pharmaceutics, 206 S. Martin Jischke Drive, West Lafayette, IN 47907, USA
| | - Byung Kook Lee
- Purdue University, Biomedical Engineering and Pharmaceutics, 206 S. Martin Jischke Drive, West Lafayette, IN 47907, USA
| | - Xiaohui Jiang
- Food and Drug Administration, Center for Drug Evaluation and Research, Office of Generic Drugs, Office of Research and Standards, 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA
| | - Yan Wang
- Food and Drug Administration, Center for Drug Evaluation and Research, Office of Generic Drugs, Office of Research and Standards, 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA
| |
Collapse
|
14
|
Electrospun polymer micro/nanofibers as pharmaceutical repositories for healthcare. J Control Release 2019; 302:19-41. [DOI: 10.1016/j.jconrel.2019.03.020] [Citation(s) in RCA: 180] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/22/2019] [Accepted: 03/23/2019] [Indexed: 12/19/2022]
|
15
|
Zeng H, Zhai X, Xie M, Liu Q. Fluorescein Isothiocyanate Labeling Antigen-Based Immunoassay Strip for Rapid Detection of Acidovorax citrulli. PLANT DISEASE 2018; 102:527-532. [PMID: 30673481 DOI: 10.1094/pdis-06-17-0903-re] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A simple and fast immunoassay strip to detect Acidovorax citrulli (Ac) using fluorescein isothiocyanate as a marker was developed. Fluorescein isothiocyanate (FITC) was added to sample culture medium for bacteria incubation, and the bacteria could emit a yellow-green fluorescence under ultraviolet light and become a fluorescent probe. This immunofluorescence strip (IFS) was based on the binding between fluorescent bacteria and the unlabeled monoclonal antibody (McAb) immobilized on the test area in nitrocellulose membrane. The detection limit of the strip was 106 CFU/ml with a result that could be observed within 10 min. The IFS could detect eight strains of Ac and display no cross-reactions with 30 other pathogenic strains. The detection results would not be affected by impurities in plant or unknown microorganisms in natural field samples and were consistent with PCR results, indicating that the IFS has high accuracy. This is the first report of using only one unlabeled McAb to develop a direct-type immunofluorescence strip for the rapid detection of Ac. The IFS reduced detection time and simplified operation procedures compared with the traditional enzyme-linked immunosorbent assay (ELISA) and PCR methods. In addition, this simple and inexpensive method will play a significant role in monitoring plant pathogens on field detection.
Collapse
Affiliation(s)
- Haijuan Zeng
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Xuzhao Zhai
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Manman Xie
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Qing Liu
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| |
Collapse
|
16
|
Huang J, Deng Y, Ren J, Chen G, Wang G, Wang F, Wu X. Novel in situ forming hydrogel based on xanthan and chitosan re-gelifying in liquids for local drug delivery. Carbohydr Polym 2018; 186:54-63. [PMID: 29456009 DOI: 10.1016/j.carbpol.2018.01.025] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Revised: 01/05/2018] [Accepted: 01/09/2018] [Indexed: 01/05/2023]
Abstract
Injectable hydrogels have been an attractive topic in biomaterials. However, during gelation in vivo, they are easy to disperse due to tissue exudates, thus leading to failure of controlled drug release. To solve this problem, we present a novel polysaccharide-based injectable hydrogel via self-crosslinking of aldehyde-modified xanthan (Xan-CHO) and carboxymethyl-modified chitosan (NOCC). The physical properties were optimized by adjusting the mass ratio of Xan-CHO and NOCC. Experiments revealed that this material exhibited the characteristics of self-healing, anti-enzymatic hydrolysis, biocompatibility and biodegradability. The releasing curve demonstrated stable release of BSA-FITC within 10 h after injection in liquids. After incorporation with a vascular endothelial growth factor, there was an interaction between this biomaterial and the host, which accelerated the reconstruction of the abdominal wall in rats. Therefore, this injectable hydrogel, as a drug delivery system, can prevent drug outburst in a variety of settings and function as a tissue scaffold.
Collapse
Affiliation(s)
- Jinjian Huang
- Department of Surgery, Jinling Hospital, Nanjing, China; Medical School of Southeast University, Nanjing, China.
| | - Youming Deng
- Department of Surgery, Jinling Hospital, Nanjing, China; Medical School of Nanjing University, Nanjing, China.
| | - Jianan Ren
- Department of Surgery, Jinling Hospital, Nanjing, China.
| | - Guopu Chen
- Department of Surgery, Jinling Hospital, Nanjing, China.
| | - Gefei Wang
- Department of Surgery, Jinling Hospital, Nanjing, China.
| | - Feng Wang
- Changgung Hospital, Tsinghua University, Beijing, China.
| | - Xiuwen Wu
- Department of Surgery, Jinling Hospital, Nanjing, China.
| |
Collapse
|
17
|
Park JH, Kwon DY, Heo JY, Park SH, Park JY, Lee B, Kim JH, Kim MS. Effect of Drug Carrier Melting Points on Drug Release of Dexamethasone-Loaded Microspheres. Tissue Eng Regen Med 2017; 14:743-753. [PMID: 30603524 PMCID: PMC6171662 DOI: 10.1007/s13770-017-0077-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 08/01/2017] [Accepted: 08/03/2017] [Indexed: 11/28/2022] Open
Abstract
Here, we examined the effect of melting point of drug carriers on drug release of dexamethasone (Dex)-loaded microspheres. We prepared poly(L-lactide-ran-ε-caprolactone) (PLC) copolymers with varying compositions of poly(ε-caprolactone) (PCL) and poly(L-lactide) (PLLA). As the PLLA content increased, the melting points of PLC copolymers decreased from 61 to 43 °C. PLC copolymers in vials solubilized at 40-50 °C according to the incorporation of PLLA into the PCL segment. Dexamethasone (Dex)-loaded PLC (MCxLy) microspheres were prepared by the oil-in-water (O/W) solvent evaporation/extraction method. The preparation yields were above 70%, and the mean particle size ranged from 30 to 90 μm. The MCxLy microspheres also showed controllable melting points in the range of 40-60 °C. Dex-loaded MCxLy microspheres showed similar in vitro and in vivo sustained release patterns after the initial burst of Dex. The in vitro and in vivo order of the Dex release was MC80L20 > MC90L10 > MC95L5, which agreed well with the melting point order of the drug carrier. Using in vivo fluorescence imaging of fluorescein (FI)-loaded microspheres implanted in animals, we confirmed the sustained release of FI over an extended period. In vivo inflammation associated with the PLC microsphere implants was less pronounced than that associated with Poly(lactide-co-glycolide) (PLGA). In conclusion, we successfully demonstrated that it is possible to control Dex release using Dex-loaded MCxLy microspheres with different melting points.
Collapse
Affiliation(s)
- Ji Hoon Park
- Department of Molecular Science and Technology, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499 Korea
| | - Doo Yeon Kwon
- Department of Molecular Science and Technology, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499 Korea
| | - Ji Yeon Heo
- Department of Molecular Science and Technology, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499 Korea
| | - Seung Hun Park
- Department of Molecular Science and Technology, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499 Korea
| | - Joon Yeong Park
- Department of Molecular Science and Technology, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499 Korea
| | - Bong Lee
- Department of Polymer Engineering, Pukyong National University, 365 Sinseon-ro, Nam-gu, Busan, 48547 Korea
| | - Jae Ho Kim
- Department of Molecular Science and Technology, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499 Korea
| | - Moon Suk Kim
- Department of Molecular Science and Technology, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499 Korea
| |
Collapse
|
18
|
Zeng H, Zhang D, Zhai X, Wang S, Liu Q. Enhancing the immunofluorescent sensitivity for detection of Acidovorax citrulli using fluorescein isothiocyanate labeled antigen and antibody. Anal Bioanal Chem 2017; 410:71-77. [DOI: 10.1007/s00216-017-0690-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 09/20/2017] [Accepted: 10/04/2017] [Indexed: 02/06/2023]
|
19
|
Shi Y, Shi Z, Li S, Zhang Y, He B, Peng D, Tian J, Zhao M, Wang X, Zhang Q. The interactions of single-wall carbon nanohorns with polar epithelium. Int J Nanomedicine 2017; 12:4177-4194. [PMID: 28615944 PMCID: PMC5459976 DOI: 10.2147/ijn.s133295] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Single-wall carbon nanohorns (SWCNHs), which have multitudes of horn interstices, an extensive surface area, and a spherical aggregate structure, offer many advantages over other carbon nanomaterials being used as a drug nanovector. The previous studies on the interaction between SWCNHs and cells have mostly emphasized on cellular uptake and intracellular trafficking, but seldom on epithelial cells. Polar epithelium as a typical biological barrier constitutes the prime obstacle for the transport of therapeutic agents to target site. This work tried to explore the permeability of SWCNHs through polar epithelium and their abilities to modulate transcellular transport, and evaluate the potential of SWCNHs in drug delivery. Madin-Darby canine kidney (MDCK) cell monolayer was used as a polar epithelial cell model, and as-grown SWCNHs, together with oxidized and fluorescein isothiocyanate-conjugated bovine serum albumin-labeled forms, were constructed and comprehensively investigated in vitro and in vivo. Various methods such as transmission electron microscopy and confocal imaging were used to visualize their intracellular uptake and localization, as well as to investigate the potential transcytotic process. The related mechanism was explored by specific inhibitors. Additionally, fast multispectral optoacoustic tomography imaging was used for monitoring the distribution and transport process of SWCNHs in vivo after oral administration in nude mice, as an evidence for their interaction with the intestinal epithelium. The results showed that SWCNHs had a strong bioadhesion property, and parts of them could be uptaken and transcytosed across the MDCK monolayer. Multiple mechanisms were involved in the uptake and transcytosis of SWCNHs with varying degrees. After oral administration, oxidized SWCNHs were distributed in the gastrointestinal tract and retained in the intestine for up to 36 h probably due to their surface adhesion and endocytosis into the intestinal epithelium. Overall, this comprehensive investigation demonstrated that SWCNHs can serve as a promising nanovector that can cross the barrier of polar epithelial cells and deliver drugs effectively.
Collapse
Affiliation(s)
- Yujie Shi
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences
| | - Zujin Shi
- Beijing National Laboratory for Molecular Sciences, State Key Lab of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, People's Republic of China
| | - Suxin Li
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences
| | - Yuan Zhang
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI, USA
| | - Bing He
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences
| | - Dong Peng
- Key Laboratory of Molecular Imaging of Chinese Academy of Sciences, Institute of Automation, Chinese Academy of Sciences
| | - Jie Tian
- Key Laboratory of Molecular Imaging of Chinese Academy of Sciences, Institute of Automation, Chinese Academy of Sciences
| | - Ming Zhao
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing, People's Republic of China
| | - Xueqing Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences
| | - Qiang Zhang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences
| |
Collapse
|
20
|
Mohamed MM, Fouad SA, Elshoky HA, Mohammed GM, Salaheldin TA. Antibacterial effect of gold nanoparticles against Corynebacterium pseudotuberculosis. Int J Vet Sci Med 2017; 5:23-29. [PMID: 30255044 PMCID: PMC6137858 DOI: 10.1016/j.ijvsm.2017.02.003] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 02/03/2017] [Accepted: 02/13/2017] [Indexed: 01/02/2023] Open
Abstract
Corynebacterium pseudotuberculosis is the etiological agent of chronic caseous lymphadenitis. The bacterium infects goats and sheep causing great economic loss worldwide annually. The present work aims to evaluate the efficiency of gold nanoparticles (AuNPs) and AuNPs – laser combined therapy as antibacterial approaches against C. pseudotuberculosis bacteria in vitro. Gold nanoparticles 25 nm were synthesized by co-precipitation method and characterized by different techniques including; Transmission Electron Microscope (TEM), X-ray Diffraction and Dynamic Light Scattering. Three concentrations of AuNPs (50, 100 and 200 μg/mL) were utilized for estimating the bacterial growth rate and the Minimum Inhibitory Concentration (MIC). The mechanism of interaction between AuNPs and bacteria was evaluated by transmission electron microscopic image analysis. Confocal Laser Scanning Microscopic technique was used to study the cytotoxic action of AuNPs and laser against C. psudotuberculosis. Results revealed that MIC of AuNPs and AuNPs – laser combined therapy were 200 μg/mL and 100 μg/mL respectively. TEM image analysis illustrated that gold nanoparticles penetrated the thick wall of C. psudotuberculosis and accumulated as intracellular agglomerates. Laser light enhanced the antimicrobial activity of gold nanoparticles by at least one fold due to its photo thermal combined effect that might be used as an effective antibacterial approach against C. pseudotuberculosis.
Collapse
Affiliation(s)
- Marwah M Mohamed
- Department of Bacterial Diagnostic Products, Veterinary Serum and Vaccine Research Institute, Egypt
| | - Shereen A Fouad
- Department of Bacterial Diagnostic Products, Veterinary Serum and Vaccine Research Institute, Egypt
| | - Hisham A Elshoky
- Nanotechnology and Advanced Material Central Lab, Agriculture Research Center, Egypt
| | - Gina M Mohammed
- Central Laboratory for Evaluation Veterinary Biologics, Agriculture Research Center, Egypt
| | - Taher A Salaheldin
- Nanotechnology and Advanced Material Central Lab, Agriculture Research Center, Egypt.,Mostafa Elsayed Nanotechnology Research Centre, British University in Egypt, Egypt
| |
Collapse
|
21
|
Chen MM, Cao H, Liu YY, Liu Y, Song FF, Chen JD, Zhang QQ, Yang WZ. Sequential delivery of chlorhexidine acetate and bFGF from PLGA-glycol chitosan core-shell microspheres. Colloids Surf B Biointerfaces 2017; 151:189-195. [DOI: 10.1016/j.colsurfb.2016.05.045] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 05/12/2016] [Accepted: 05/16/2016] [Indexed: 10/21/2022]
|
22
|
Mal J, Veneman WJ, Nancharaiah YV, van Hullebusch ED, Peijnenburg WJGM, Vijver MG, Lens PNL. A comparison of fate and toxicity of selenite, biogenically, and chemically synthesized selenium nanoparticles to zebrafish (Danio rerio) embryogenesis. Nanotoxicology 2017; 11:87-97. [DOI: 10.1080/17435390.2016.1275866] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Joyabrata Mal
- UNESCO-IHE, Delft, The Netherlands
- Institute of Environmental Sciences (CML), Faculty of Science, Leiden University, Leiden, The Netherlands
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, Marne-la-Vallée, France
| | - Wouter J. Veneman
- Institute of Environmental Sciences (CML), Faculty of Science, Leiden University, Leiden, The Netherlands
| | - Y. V. Nancharaiah
- Biofouling and Biofilm Process Section, Water and Steam Chemistry Division, Bhabha Atomic Research Centre, Kalpakkam, Tamil Nadu, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, India
| | - Eric D. van Hullebusch
- UNESCO-IHE, Delft, The Netherlands
- Institute of Environmental Sciences (CML), Faculty of Science, Leiden University, Leiden, The Netherlands
| | - Willie J. G. M. Peijnenburg
- Institute of Environmental Sciences (CML), Faculty of Science, Leiden University, Leiden, The Netherlands
- RIVM-National Institute of Public Health and the Environment, Center for Safety of Substances and Products, Bilthoven, The Netherlands
| | - Martina G. Vijver
- Institute of Environmental Sciences (CML), Faculty of Science, Leiden University, Leiden, The Netherlands
| | - Piet N. L. Lens
- UNESCO-IHE, Delft, The Netherlands
- Department of Chemistry and Bioengineering, Tampere University of Technology, Tampere, Finland
| |
Collapse
|
23
|
Ge C, Basuki JS, White J, Hou R, Peng Y, Hughes TC, Tan T. Photothermal triggered protein release from an injectable polycaprolactone-based microspherical depot. J Mater Chem B 2017; 5:3634-3639. [DOI: 10.1039/c7tb00837f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Visible light mediated controlled release of biologically active enzymes was confirmed by released horseradish peroxidase's ability to ameliorate H2O2 cytotoxicity in vitro.
Collapse
Affiliation(s)
- Chunling Ge
- Beijing Key Lab of Bioprocess, Beijing University of Chemical Technology
- Beijing
- P. R. China
- Manufacturing
- CSIRO
| | | | | | - Ruixia Hou
- Manufacturing
- CSIRO
- Clayton
- Victoria
- Australia
| | - Yong Peng
- Manufacturing
- CSIRO
- Clayton
- Victoria
- Australia
| | | | - Tianwei Tan
- Beijing Key Lab of Bioprocess, Beijing University of Chemical Technology
- Beijing
- P. R. China
| |
Collapse
|
24
|
Zykwinska A, Marquis M, Sinquin C, Cuenot S, Colliec-Jouault S. Assembly of HE800 exopolysaccharide produced by a deep-sea hydrothermal bacterium into microgels for protein delivery applications. Carbohydr Polym 2016; 142:213-21. [DOI: 10.1016/j.carbpol.2016.01.056] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 01/14/2016] [Accepted: 01/25/2016] [Indexed: 11/30/2022]
|
25
|
Synergistic anti-tumor activity through combinational intratumoral injection of an in-situ injectable drug depot. Biomaterials 2016; 85:232-45. [PMID: 26874285 DOI: 10.1016/j.biomaterials.2016.02.001] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 01/19/2016] [Accepted: 02/01/2016] [Indexed: 01/27/2023]
Abstract
Here, we describe combinational chemotherapy via intratumoral injection of doxorubicin (Dox) and 5-fluorouracil (Fu) to enhance the efficacy and reduce the toxicity of systemically administered Fu and Dox in cancer patients. As the key concept in this work, mixture formulations of Dox-loaded microcapsules (Dox-M) and Fu-loaded Pluronic(®) hydrogels (Fu-HP) or Fu-loaded diblock copolymer hydrogels (Fu-HC) have been employed as drug depots. The in vitro and in vivo drug depot was designed as a formulation of Dox-M dispersed inside an outer shell of Fu-HP or Fu-HC after injection. The Dox-M/Fu-HP and Dox-M/Fu-HC formulations are free flowing at room temperature, indicating injectability, and formed a structural gelatinous depot in vitro and in vivo at body temperature. The Fu-HP, Fu-HC, Dox-M/Fu-HP, Dox-M/Fu-HC, and Dox-M formulations were easily injected into tumor centers in mice using a needle. Dox-M/Fu-HC produced more significant inhibitory effects against tumor growth than that by Dox-M/Fu-HP, while Fu-HP, Fu-HC and Dox-M had the weakest inhibitory effects of the tested treatments. The in vivo study of Dox and Fu biodistribution showed that high Dox and Fu concentrations were maintained in the target tumor only, while distribution to normal tissues was not observed, indicating that Dox and Fu concentrations below their toxic plasma concentrations should not cause significant systemic toxicity. The Dox-M/Fu-HP and Dox-M/Fu-HC drug depots described in this work showed excellent performance as chemotherapeutic delivery systems. The results reported here indicate that intratumoral injection using combination chemotherapy with Dox-M/Fu-HP or Dox-M/Fu-HC could be of translational research by enhancing the synergistic inhibitory effects of Dox and Fu on tumor growth, while reducing their systemic toxicity in cancer patients.
Collapse
|
26
|
Ghosh B, Nowak BF, Bridle AR. Alginate Microencapsulation for Oral Immunisation of Finfish: Release Characteristics, Ex Vivo Intestinal Uptake and In Vivo Administration in Atlantic Salmon, Salmo salar L. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2015; 17:841-853. [PMID: 26410294 DOI: 10.1007/s10126-015-9663-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 08/24/2015] [Indexed: 06/05/2023]
Abstract
This study examined the feasibility of alginate microcapsules manufactured using a low-impact technology and reagents to protect orally delivered immunogens for use as immunoprophylactics for fish. Physical characteristics and protein release kinetics of the microcapsules were examined at different pH and temperature levels using a microencapsulated model protein, bovine serum albumin (BSA). Impact of the microencapsulation process on contents was determined by analysing change in bioactivity of microencapsulated lysozyme. Feasibility of the method for oral immunoprophylaxis of finfish was assessed using FITC-labelled microcapsules. These were applied to distal intestinal explants of Atlantic salmon (Salmo salar) to investigate uptake ex vivo. Systemic distribution of microcapsules was investigated by oral administration of FITC-labelled microcapsules to Atlantic salmon fry by incorporating into feed. The microcapsules produced were structurally robust and retained surface integrity, with a modal size distribution of 250-750 nm and a tendency to aggregate. Entrapment efficiency of microencapsulation was 51.2 % for BSA and 43.2 % in the case of lysozyme. Microcapsules demonstrated controlled release of protein, which increased with increasing pH or temperature, and the process had no significant negative effect on bioactivity of lysozyme. Uptake of fluorescent-labelled microcapsules was clearly demonstrated by intestinal explants over a 24-h period. Evidence of microcapsules was found in the intestine, spleen, kidney and liver of fry following oral administration. Amenability of the microcapsules to intestinal uptake and distribution reinforced the strong potential for use of this microencapsulation method in oral immunoprophylaxis of finfish using sensitive immunogenic substances.
Collapse
Affiliation(s)
- Bikramjit Ghosh
- Institute for Marine and Antarctic Studies, University of Tasmania, Locked Bag 1370, Launceston, Tasmania, 7250, Australia.
| | - Barbara F Nowak
- Institute for Marine and Antarctic Studies, University of Tasmania, Locked Bag 1370, Launceston, Tasmania, 7250, Australia.
| | - Andrew R Bridle
- Institute for Marine and Antarctic Studies, University of Tasmania, Locked Bag 1370, Launceston, Tasmania, 7250, Australia.
| |
Collapse
|
27
|
Cao H, Chen MM, Liu Y, Liu YY, Huang YQ, Wang JH, Chen JD, Zhang QQ. Fish collagen-based scaffold containing PLGA microspheres for controlled growth factor delivery in skin tissue engineering. Colloids Surf B Biointerfaces 2015; 136:1098-106. [PMID: 26618451 DOI: 10.1016/j.colsurfb.2015.10.022] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 10/10/2015] [Accepted: 10/16/2015] [Indexed: 02/06/2023]
Abstract
To design a scaffold controlled release system for skin tissue engineering, fish collagen/chitosan/chondroitin sulfate scaffolds were fabricated by freeze-drying and incorporated with bFGF-loaded PLGA microspheres (MPs). SEM showed that the scaffolds exhibited an interconnected porous structure, and the spherical MPs were uniformly distributed into the scaffolds. The higher swelling and degradation rate of scaffolds/MPs could lead to a higher diffusion rate of MPs from the scaffolds, causing an increase in the protein release. The release rate of proteins could be adjusted by the size of MPs and the ratio of collagen to chitosan of scaffolds. Circular dichroism spectroscopy and MTT of bFGF after release indicated that the released bFGF retained its structural integrity and bioactivity during preparation. Cell proliferation and in vivo evaluation results suggested that the scaffolds/MPs had a good biocompatibility and an ability to promote fibroblast cell proliferation and skin tissue regeneration. These results demonstrated that this scaffold/MP controlled release system has the potential for skin tissue engineering.
Collapse
Affiliation(s)
- Huan Cao
- Institute of Biomedical and Pharmaceutical Technology, Fuzhou University, Fuzhou 350002, China
| | - Ming-Mao Chen
- Institute of Biomedical and Pharmaceutical Technology, Fuzhou University, Fuzhou 350002, China.
| | - Yan Liu
- State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Yuan-Yuan Liu
- Institute of Biomedical and Pharmaceutical Technology, Fuzhou University, Fuzhou 350002, China
| | - Yu-Qing Huang
- Institute of Biomedical and Pharmaceutical Technology, Fuzhou University, Fuzhou 350002, China
| | - Jian-Hua Wang
- Institute of Biomedical and Pharmaceutical Technology, Fuzhou University, Fuzhou 350002, China
| | - Jing-Di Chen
- Institute of Biomedical and Pharmaceutical Technology, Fuzhou University, Fuzhou 350002, China
| | - Qi-Qing Zhang
- Institute of Biomedical and Pharmaceutical Technology, Fuzhou University, Fuzhou 350002, China; Key Laboratory of Biomedical Material of Tianjin, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin 300192, China.
| |
Collapse
|
28
|
Reum Son A, Kim DY, Hun Park S, Yong Jang J, Kim K, Ju Kim B, Yun Yin X, Ho Kim J, Hyun Min B, Keun Han D, Suk Kim M. Direct chemotherapeutic dual drug delivery through intra-articular injection for synergistic enhancement of rheumatoid arthritis treatment. Sci Rep 2015; 5:14713. [PMID: 26424611 PMCID: PMC4589689 DOI: 10.1038/srep14713] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 07/17/2015] [Indexed: 12/04/2022] Open
Abstract
The effectiveness of systemic rheumatoid arthritis (RA) treatments is limited by difficulties in achieving therapeutic doses within articular joints. We evaluated the ability of intra-articular administration of injectable formulations to synergistically enhance repair of RA joints. Methotrexate-loaded hyaluronic acid (Met-HA), dexamethasone-loaded microcapsules (Dex-M), and Dex-M dispersed inside Met-HA were prepared as viscous emulsions and injected into articular joints using a needle to form a drug depot. By near-infrared (NIR) fluorescence imaging, we confirmed the local release of NIR from the depot injected into the articular joint over an extended period. In comparison with the subjects treated with Met-HA or Dex-M alone, subjects treated simultaneously with Met-HA and Dex-M exhibited faster and more significant RA repair. Collectively, these results indicated that the drug depot formed after intra-articular injection of Met-HA/Dex-M induced long-lasting drug release and allowed Met and Dex to effectively act in the articular joint, resulting in enhanced RA repair.
Collapse
Affiliation(s)
- A Reum Son
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Da Yeon Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Seung Hun Park
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Ja Yong Jang
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Kyungsook Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Byoung Ju Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Xiang Yun Yin
- Department of Orthopedic Surgery, School of Medicine, Ajou University, Suwon 443-759, Korea
| | - Jae Ho Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Byoung Hyun Min
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
- Department of Orthopedic Surgery, School of Medicine, Ajou University, Suwon 443-759, Korea
| | - Dong Keun Han
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul 130-650, Korea
| | - Moon Suk Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| |
Collapse
|
29
|
Li J, Wu N, Wu J, Wan Y, Liu C. Effect of protein adsorption on cell uptake and blood clearance of methoxy poly(ethylene glycol)-poly(caprolactone) nanoparticles. J Appl Polym Sci 2015. [DOI: 10.1002/app.42884] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jing Li
- Hubei Province Key Laboratory on Cardiovascular; Cerebrovascular, and Metabolic Disorders, Hubei University of Science and Technology; Xianning Hubei 437100 People's Republic of China
| | - Ninghua Wu
- Hubei Province Key Laboratory on Cardiovascular; Cerebrovascular, and Metabolic Disorders, Hubei University of Science and Technology; Xianning Hubei 437100 People's Republic of China
| | - Jiliang Wu
- Hubei Province Key Laboratory on Cardiovascular; Cerebrovascular, and Metabolic Disorders, Hubei University of Science and Technology; Xianning Hubei 437100 People's Republic of China
| | - Ying Wan
- College of Life Science and Technology; Huazhong University of Science and Technology; Wuhan 430074 People's Republic of China
| | - Chao Liu
- Hubei Province Key Laboratory on Cardiovascular; Cerebrovascular, and Metabolic Disorders, Hubei University of Science and Technology; Xianning Hubei 437100 People's Republic of China
| |
Collapse
|
30
|
Qian K, Wu J, Zhang E, Zhang Y, Fu A. Biodegradable double nanocapsule as a novel multifunctional carrier for drug delivery and cell imaging. Int J Nanomedicine 2015. [PMID: 26203242 PMCID: PMC4487237 DOI: 10.2147/ijn.s83731] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Highly-efficient delivery of macromolecules into cells for both imaging and therapy (theranostics) remains a challenge for the design of a delivery system. Here, we suggested a novel hybrid protein-lipid polymer nanocapsule as an effective and nontoxic drug delivery and imaging carrier. The biodegradable nanocapsules showed the typical double emulsion features, including fluorescently labeled bovine serum albumin shell, oil phase containing poly(lactic-co-glycolic acid) and linoleic acid, and inner aqueous phase. The nanocapsules were spherical in shape, with an average size of about 180 nm. Proteins packed into the inner aqueous phase of the nanocapsules could be delivered into cells with high efficiency, and the fluorescence of the fluorescently labeled bovine serum albumin could be used for tracing the protein migration and cellular location. Further studies suggested that the co-delivery of transcription factor p53 and lipophilic drug paclitaxel with the nanocapsules acted synergistically to induce Hela cell apoptosis, and the fluorescence of apoptotic cells was clearly observed under a fluorescence microscope. Such multifunctional delivery system would have great potential applications in drug delivery and theranostic fields.
Collapse
Affiliation(s)
- Kun Qian
- School of Pharmaceutical Sciences, Southwest University, Chongqing, People's Republic of China ; College of Plant Protection, Southwest University, Chongqing, People's Republic of China
| | - Jing Wu
- School of Pharmaceutical Sciences, Southwest University, Chongqing, People's Republic of China
| | - Enqi Zhang
- School of Pharmaceutical Sciences, Southwest University, Chongqing, People's Republic of China
| | - Yingge Zhang
- Institute of Pharmacology and Toxicology, Key Laboratory of Nanopharmacology and Nanotoxicology, Beijing Academy of Medical Sciences, Beijing, People's Republic of China
| | - Ailing Fu
- School of Pharmaceutical Sciences, Southwest University, Chongqing, People's Republic of China
| |
Collapse
|
31
|
Lactosylated PLGA nanoparticles containing ϵ-polylysine for the sustained release and liver-targeted delivery of the negatively charged proteins. Int J Pharm 2015; 478:633-43. [DOI: 10.1016/j.ijpharm.2014.12.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Revised: 12/08/2014] [Accepted: 12/10/2014] [Indexed: 11/20/2022]
|
32
|
Sampath Kumar T, Madhumathi K, Rajkamal B, Zaheatha S, Rajathi Malar A, Alamelu Bai S. Enhanced protein delivery by multi-ion containing eggshell derived apatitic-alginate composite nanocarriers. Colloids Surf B Biointerfaces 2014; 123:542-8. [DOI: 10.1016/j.colsurfb.2014.09.052] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 08/26/2014] [Accepted: 09/25/2014] [Indexed: 11/25/2022]
|
33
|
He C, Nie W, Feng W. Engineering of biomimetic nanofibrous matrices for drug delivery and tissue engineering. J Mater Chem B 2014; 2:7828-7848. [PMID: 32262073 DOI: 10.1039/c4tb01464b] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Biomimetic nanofibers have emerged as promising candidates for drug delivery and tissue engineering applications. In this paper, recent advances on the fabrication and application of biomimetic nanofibers as drug carriers and scaffolding materials are reviewed. First, we delineate the three popular nanofiber fabrication techniques including electrospinning, phase separation and molecular self-assembly, covering the principal materials used for different techniques and surface functionalization strategies for nanofibers. Furthermore, we focus our interest on the nanofiber-based delivery strategies and underlying kinetics for growth factors and other bioactive molecules, following which we summarize the recent advances in the development of these nanofibrous matrices for bone, vascular and neural tissue engineering applications. Finally, research challenges and future trends in the related areas are discussed.
Collapse
Affiliation(s)
- Chuanglong He
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China.
| | | | | |
Collapse
|
34
|
Effect of drying conditions on cellulose nanocrystal (CNC) agglomerate porosity and dispersibility in polymer nanocomposites. POWDER TECHNOL 2014. [DOI: 10.1016/j.powtec.2014.04.016] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
35
|
Liu Y, Huang J, Sun MJ, Yu JC, Chen YL, Zhang YQ, Jiang SJ, Shen QD. A fluorescence-Raman dual-imaging platform based on complexes of conjugated polymers and carbon nanotubes. NANOSCALE 2014; 6:1480-1489. [PMID: 24316716 DOI: 10.1039/c3nr04430k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The present study describes a flexible nanoplatform based on electrostatic assembly of conjugated polyelectrolytes (CPEs) and carboxylated multi-walled carbon nanotubes (cMWNTs). It is demonstrated that the obtained nanocomposites inherit intrinsic optical properties of CPEs and characteristic Raman vibration modes of MWNTs, providing a fluorescence-Raman dual-imaging method for intracellular tracking and locating of MWNTs. We suggest that the cellular internalization of the CPE-cMWNT nanocomposites is a surface charge-dependent process. The strengths of this nanoplatform include satisfying biocompatibility, enhanced protein-repellent property, and ease of implementation, making it available for both in vitro and in vivo applications.
Collapse
Affiliation(s)
- Yun Liu
- Department of Polymer Science & Engineering and Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210093, China.
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Aziz HA, Peh KK, Tan YTF. Herbal delivery system for treatment of obesity administration of encapsulated khat-extracts on body weight of rats. Obes Res Clin Pract 2013; 5:e267-360. [PMID: 24331133 DOI: 10.1016/j.orcp.2011.03.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Revised: 03/13/2011] [Accepted: 03/23/2011] [Indexed: 02/01/2023]
Abstract
SUMMARY Obesity is one of the most important problems worldwide. Khat (Catha edulis), an evergreen shrub, is thought to reduce body-weight. Its effect is more prominent when khat leaves are chewed. Thus, anti-obesity effects of khat and its associated side effects may depend on the release rate of its active constituents. The present study aimed to investigate the effect of a selected low dose of dried-khat, extracted, formulated as controlled release delivery systems on the body weight (BW), food intake (FI), cholesterol (CS) and triglyceride (TG) levels in rats. Khat extract (KE) was microencapsulated (KE235) and formulated into a parenteral implant (InjKE235). The effects of KE, KE235 and InjKE235 on BW, FI, CS and TG in rats were investigated. The results showed that microcapsules sustained the khat alkaloid release with T50% 1.58 h for KE235 and 14.41 days for InjKE235. KE and KE235 caused maximum reduction in BW, FI, CS and TG during the first to third weeks but rebound gradually thereafter. On the contrary, InjKE235 exhibited a sustained reduction in BW, FI, CS and TG levels for 2 months. The T50% of KE, KE235 and InjKE235 correlated with the reduction in BW, CS and TG but not with FI. In conclusion, the subcutaneous injection and sustained release rate of khat extract play an important role in enhancing the anti-obesity effect in SD rats.:
Collapse
Affiliation(s)
- Hesham Abdul Aziz
- Department of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia.
| | | | | |
Collapse
|
37
|
Hsieh WC, Lin PK, Lin LH, Huang CF. Flow cytometry analysis using at the poly(3-hydroxybutyrate-co-3-hydrovalerate) microspheres for drug delivery system. J Taiwan Inst Chem Eng 2013. [DOI: 10.1016/j.jtice.2013.01.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
38
|
Scalable method to produce biodegradable nanoparticles that rapidly penetrate human mucus. J Control Release 2013; 170:279-86. [PMID: 23751567 DOI: 10.1016/j.jconrel.2013.05.035] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 05/29/2013] [Accepted: 05/30/2013] [Indexed: 11/22/2022]
Abstract
Mucus typically traps and rapidly removes foreign particles from the airways, gastrointestinal tract, nasopharynx, female reproductive tract and the surface of the eye. Nanoparticles capable of rapid penetration through mucus can potentially avoid rapid clearance, and open significant opportunities for controlled drug delivery at mucosal surfaces. Here, we report an industrially scalable emulsification method to produce biodegradable mucus-penetrating particles (MPP). The emulsification of diblock copolymers of poly(lactic-co-glycolic acid) and polyethylene glycol (PLGA-PEG) using low molecular weight (MW) emulsifiers forms dense brush PEG coatings on nanoparticles that allow rapid nanoparticle penetration through fresh undiluted human mucus. In comparison, conventional high MW emulsifiers, such as polyvinyl alcohol (PVA), interrupts the PEG coating on nanoparticles, resulting in their immobilization in mucus owing to adhesive interactions with mucus mesh elements. PLGA-PEG nanoparticles with a wide range of PEG MW (1, 2, 5, and 10 kDa), prepared by the emulsification method using low MW emulsifiers, all rapidly penetrated mucus. A range of drugs, from hydrophobic small molecules to hydrophilic large biologics, can be efficiently loaded into biodegradable MPP using the method described. This readily scalable method should facilitate the production of MPP products for mucosal drug delivery, as well as potentially longer-circulating particles following intravenous administration.
Collapse
|
39
|
Lee I, Park M, Kim Y, Hwang O, Khang G, Lee D. Ketal containing amphiphilic block copolymer micelles as pH-sensitive drug carriers. Int J Pharm 2013; 448:259-66. [PMID: 23524123 DOI: 10.1016/j.ijpharm.2013.03.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Revised: 02/04/2013] [Accepted: 03/13/2013] [Indexed: 01/19/2023]
Abstract
pH-Responsive linkages have been widely exploited in the development of polymeric drug delivery systems, which trigger drug release selectively at tumor tissues or endosomes and lysosomes of cells. Herein we report new pH-sensitive amphiphilic poly(ketal adipate)-co-poly(ethylene glycol) block copolymers (PKA-PEG), which have acid-cleavable ketal linkages in their hydrophobic backbone. PKA-PEG copolymers self-assemble to form stable micelles with a mean diameter of ~175 nm, which can encapsulate a payload of anticancer drugs and rapidly dissociate to release drug payload at the acid environment. The micelles are biocompatible and exhibit abilities to disrupt endosomes to enhance the cytosol drug delivery. Taken together, we anticipate that the pH-sensitive PKA-PEG micelles have great potential as anticancer drug carriers.
Collapse
Affiliation(s)
- Iljae Lee
- Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, Republic of Korea
| | | | | | | | | | | |
Collapse
|
40
|
Preparation and characterization of valsartan-loaded polyoxalate microspheres: In vitro release profiles. Macromol Res 2013. [DOI: 10.1007/s13233-013-1054-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
41
|
Lim H, Noh J, Kim Y, Kim H, Kim J, Khang G, Lee D. Acid-Degradable Cationic Poly(ketal amidoamine) for Enhanced RNA Interference In Vitro and In Vivo. Biomacromolecules 2013; 14:240-7. [DOI: 10.1021/bm301669e] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Hyungsuk Lim
- Department
of BIN Fusion Technology and ‡Polymer Fusion Research Center, Department of Polymer·Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - Joungyoun Noh
- Department
of BIN Fusion Technology and ‡Polymer Fusion Research Center, Department of Polymer·Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - Yerang Kim
- Department
of BIN Fusion Technology and ‡Polymer Fusion Research Center, Department of Polymer·Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - Hyungmin Kim
- Department
of BIN Fusion Technology and ‡Polymer Fusion Research Center, Department of Polymer·Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - Jihye Kim
- Department
of BIN Fusion Technology and ‡Polymer Fusion Research Center, Department of Polymer·Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - Gilson Khang
- Department
of BIN Fusion Technology and ‡Polymer Fusion Research Center, Department of Polymer·Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - Dongwon Lee
- Department
of BIN Fusion Technology and ‡Polymer Fusion Research Center, Department of Polymer·Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea
| |
Collapse
|
42
|
Sun H, Liu K, Liu W, Wang W, Guo C, Tang B, Gu J, Zhang J, Li H, Mao X, Zou Q, Zeng H. Development and characterization of a novel nanoemulsion drug-delivery system for potential application in oral delivery of protein drugs. Int J Nanomedicine 2012; 7:5529-43. [PMID: 23118537 PMCID: PMC3484902 DOI: 10.2147/ijn.s36071] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2010] [Indexed: 11/23/2022] Open
Abstract
Background: The stability of protein drugs remains one of the key hurdles to their success in the market. The aim of the present study was to design a novel nanoemulsion drug-delivery system (NEDDS) that would encapsulate a standard-model protein drug – bovine serum albumin (BSA) – to improve drug stability. Methods: The BSA NEDDS was prepared using a phase-inversion method and pseudoternary phase diagrams. The following characteristics were studied: morphology, size, zeta potential, drug loading, and encapsulation efficiency. We also investigated the stability of the BSA NEDDS, bioactivity of BSA encapsulated within the NEDDS, the integrity of the primary, secondary, and tertiary structures, and specificity. Results: The BSA NEDDS consisted of Cremophor EL-35, propylene glycol, isopropyl myristate, and normal saline. The average particle diameter of the BSA NEDDS was about 21.8 nm, and the system showed a high encapsulation efficiency (>90%) and an adequate drug-loading capacity (45 mg/mL). The thermodynamic stability of the system was investigated at different temperatures and pH levels and in room-temperature conditions for 180 days. BSA NEDDS showed good structural integrity and specificity for the primary, secondary, and tertiary structures, and good bioactivity of the loaded BSA. Conclusions: BSA NEDDS showed the properties of a good nanoemulsion-delivery system. NEDDS can greatly enhance the stability of the protein drug BSA while maintaining high levels of drug bioactivity, good specificity, and integrity of the primary, secondary, and tertiary protein structures. These findings indicate that the nanoemulsion is a potential formulation for oral administration of protein drugs.
Collapse
Affiliation(s)
- Hongwu Sun
- National Engineering Research Center for Immunological Products, Third Military Medical University, Chongqing, China
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Liu G, Fan W, Li L, Chu PK, Yeung KW, Wu S, Xu Z. Novel anionic fluorine-containing amphiphilic self-assembly polymer micelles for potential application in protein drug carrier. J Fluor Chem 2012. [DOI: 10.1016/j.jfluchem.2012.05.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
44
|
Radu T, Chiriac MT, Popescu O, Simon V, Simon S. In vitroevaluation of the effects of yttria-alumina-silica microspheres on human keratinocyte cells. J Biomed Mater Res A 2012; 101:472-7. [DOI: 10.1002/jbm.a.34320] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 05/29/2012] [Accepted: 06/15/2012] [Indexed: 11/11/2022]
|
45
|
Rayaprolu BM, Strom JG. Design and evaluation of D-α tocopheryl polyethylene glycol 1000 succinate emulsified poly-ϵ-caprolactone nanoparticles for protein/peptide drug delivery. Drug Dev Ind Pharm 2012; 39:1046-52. [DOI: 10.3109/03639045.2012.699069] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
46
|
Wu F, Bhansali SG, Law WC, Bergey EJ, Prasad PN, Morris ME. Fluorescence Imaging of the Lymph Node Uptake of Proteins in Mice after Subcutaneous Injection: Molecular Weight Dependence. Pharm Res 2012; 29:1843-53. [DOI: 10.1007/s11095-012-0708-6] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2011] [Accepted: 02/10/2012] [Indexed: 01/25/2023]
|
47
|
Biocompatibility of a PDMS-coated micro-device: Bladder volume monitoring sensor. CHINESE JOURNAL OF POLYMER SCIENCE 2012. [DOI: 10.1007/s10118-012-1119-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
48
|
Nelson DM, Ma Z, Leeson CE, Wagner WR. Extended and sequential delivery of protein from injectable thermoresponsive hydrogels. J Biomed Mater Res A 2012; 100:776-85. [PMID: 22237975 DOI: 10.1002/jbm.a.34015] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 09/12/2011] [Accepted: 10/25/2011] [Indexed: 11/10/2022]
Abstract
Thermoresponsive hydrogels are attractive for their injectability and retention in tissue sites where they may serve as a mechanical support and as a scaffold to guide tissue remodeling. Our objective in this report was to develop a thermoresponsive, biodegradable hydrogel system that would be capable of protein release from two distinct reservoirs--one where protein was attached to the hydrogel backbone, and one where protein was loaded into biodegradable microparticles mixed into the network. Thermoresponsive hydrogels consisting of N-isopropylacrylamide (NIPAAm), 2-hydroxyethyl methacrylate (HEMA), and biodegradable methacrylate polylactide were synthesized along with modified copolymers incorporating 1 mol % protein-reactive methacryloxy N-hydroxysuccinimide (MANHS), hydrophilic acrylic acid (AAc), or both. In vitro bovine serum albumin (BSA) release was studied from hydrogels, poly(lactide-co-glycolide) microparticles, or microparticles mixed into the hydrogels. The synthesized copolymers were able to gel below 37°C and release protein in excess of 3 months. The presence of MANHS and AAc in the copolymers was associated with higher loaded protein retention during thermal transition (45% vs. 22%) and faster release (2 months), respectively. Microspheres entrapped in the hydrogel released protein in a delayed fashion relative to microspheres in saline. The combination of a protein-reactive hydrogel mixed with protein-loaded microspheres demonstrated a sequential release of specific BSA populations. Overall the described drug delivery system combines the advantages of injectability, degradability, extended release, and sequential release, which may be useful in tissue engineering applications.
Collapse
Affiliation(s)
- Devin M Nelson
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15219, USA
| | | | | | | |
Collapse
|
49
|
Kuo CF, Tsao N, Chou HH, Liu YL, Hsieh WC. Release of FITC-BSA from poly(l-lactic acid) microspheres analysis using flow cytometry. Colloids Surf B Biointerfaces 2012; 89:271-6. [DOI: 10.1016/j.colsurfb.2011.09.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 09/13/2011] [Accepted: 09/17/2011] [Indexed: 11/27/2022]
|
50
|
Biodegradable polyoxalate and copolyoxalate particles for drug-delivery applications. Ther Deliv 2011; 2:1407-17. [DOI: 10.4155/tde.11.113] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Polyoxalate and copolyoxalate were developed in the 1970s and have been used for biomedical applications such as suture coating purposes, owing to their biocompatibility and biodegradability. They are known to degrade into diols and oxalic acid, which are considered biocompatible. One of the advantages of oxalate-based polymer is the ease of control of physicochemical properties, such as biodegradability, crystallinity and mechanical strength. The composition and hydrophobicity of diols greatly influenced their hydrolytic stability and mechanical properties. Oxalate-based polymers have faster hydrolytic-degradation kinetics than the commercial biodegradable polymers, poly(lactide-co-glycolide) and poly(caprolactone). Recently, our group has developed fully biodegradable polymer drug carriers based on oxalate-based polymers that are composed of various diols. The hydrophobicity of the oxalate-based polymers allowed them to be formulated into nano- or micro-particles, which are suitable for targeting macrophages in inflammatory diseases. The nano- or micro-particles exhibited excellent cytotoxicity profiles and fast drug-release kinetics, suggesting great potential as drug-delivery systems for the treatment of acute inflammatory diseases. In this article, we discuss the synthesis and physicochemical properties of oxalate-based polymers which can be used as a drug-delivery vehicle for the treatment of inflammatory diseases.
Collapse
|