1
|
Beach M, Nayanathara U, Gao Y, Zhang C, Xiong Y, Wang Y, Such GK. Polymeric Nanoparticles for Drug Delivery. Chem Rev 2024; 124:5505-5616. [PMID: 38626459 PMCID: PMC11086401 DOI: 10.1021/acs.chemrev.3c00705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
The recent emergence of nanomedicine has revolutionized the therapeutic landscape and necessitated the creation of more sophisticated drug delivery systems. Polymeric nanoparticles sit at the forefront of numerous promising drug delivery designs, due to their unmatched control over physiochemical properties such as size, shape, architecture, charge, and surface functionality. Furthermore, polymeric nanoparticles have the ability to navigate various biological barriers to precisely target specific sites within the body, encapsulate a diverse range of therapeutic cargo and efficiently release this cargo in response to internal and external stimuli. However, despite these remarkable advantages, the presence of polymeric nanoparticles in wider clinical application is minimal. This review will provide a comprehensive understanding of polymeric nanoparticles as drug delivery vehicles. The biological barriers affecting drug delivery will be outlined first, followed by a comprehensive description of the various nanoparticle designs and preparation methods, beginning with the polymers on which they are based. The review will meticulously explore the current performance of polymeric nanoparticles against a myriad of diseases including cancer, viral and bacterial infections, before finally evaluating the advantages and crucial challenges that will determine their wider clinical potential in the decades to come.
Collapse
Affiliation(s)
- Maximilian
A. Beach
- School
of Chemistry, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Umeka Nayanathara
- School
of Chemistry, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Yanting Gao
- School
of Chemistry, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Changhe Zhang
- School
of Chemistry, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Yijun Xiong
- School
of Chemistry, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Yufu Wang
- School
of Chemistry, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Georgina K. Such
- School
of Chemistry, The University of Melbourne, Parkville, Victoria 3010, Australia
| |
Collapse
|
2
|
Latiyan S, Kumar TSS, Doble M, Kennedy JF. Perspectives of nanofibrous wound dressings based on glucans and galactans - A review. Int J Biol Macromol 2023:125358. [PMID: 37330091 DOI: 10.1016/j.ijbiomac.2023.125358] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 06/06/2023] [Accepted: 06/10/2023] [Indexed: 06/19/2023]
Abstract
Wound healing is a complex and dynamic process that needs an appropriate environment to overcome infection and inflammation to progress well. Wounds lead to morbidity, mortality, and a significant economic burden, often due to the non-availability of suitable treatments. Hence, this field has lured the attention of researchers and pharmaceutical industries for decades. As a result, the global wound care market is expected to be 27.8 billion USD by 2026 from 19.3 billion USD in 2021, at a compound annual growth rate (CAGR) of 7.6 %. Wound dressings have emerged as an effective treatment to maintain moisture, protect from pathogens, and impede wound healing. However, synthetic polymer-based dressings fail to comprehensively address optimal and quick regeneration requirements. Natural polymers like glucan and galactan-based carbohydrate dressings have received much attention due to their inherent biocompatibility, biodegradability, inexpensiveness, and natural abundance. Also, nanofibrous mesh supports better proliferation and migration of fibroblasts because of their large surface area and similarity to the extracellular matrix (ECM). Thus, nanostructured dressings derived from glucans and galactans (i.e., chitosan, agar/agarose, pullulan, curdlan, carrageenan, etc.) can overcome the limitations associated with traditional wound dressings. However, they require further development pertaining to the wireless determination of wound bed status and its clinical assessment. The present review intends to provide insight into such carbohydrate-based nanofibrous dressings and their prospects, along with some clinical case studies.
Collapse
Affiliation(s)
- Sachin Latiyan
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai 600036, India; Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - T S Sampath Kumar
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai 600036, India.
| | - Mukesh Doble
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India; Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai 600077, India
| | - John F Kennedy
- Chembiotech Labs, Institute of Science and Technology, Kyrewood House, Tenbury Wells WR158FF, UK
| |
Collapse
|
3
|
Dextran Formulations as Effective Delivery Systems of Therapeutic Agents. Molecules 2023; 28:molecules28031086. [PMID: 36770753 PMCID: PMC9920038 DOI: 10.3390/molecules28031086] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/12/2023] [Accepted: 01/20/2023] [Indexed: 01/24/2023] Open
Abstract
Dextran is by far one of the most interesting non-toxic, bio-compatible macromolecules, an exopolysaccharide biosynthesized by lactic acid bacteria. It has been extensively used as a major component in many types of drug-delivery systems (DDS), which can be submitted to the next in-vivo testing stages, and may be proposed for clinical trials or pharmaceutical use approval. An important aspect to consider in order to maintain high DDS' biocompatibility is the use of dextran obtained by fermentation processes and with a minimum chemical modification degree. By performing chemical modifications, artefacts can appear in the dextran spatial structure that can lead to decreased biocompatibility or even cytotoxicity. The present review aims to systematize DDS depending on the dextran type used and the biologically active compounds transported, in order to obtain desired therapeutic effects. So far, pure dextran and modified dextran such as acetalated, oxidised, carboxymethyl, diethylaminoethyl-dextran and dextran sulphate sodium, were used to develop several DDSs: microspheres, microparticles, nanoparticles, nanodroplets, liposomes, micelles and nanomicelles, hydrogels, films, nanowires, bio-conjugates, medical adhesives and others. The DDS are critically presented by structures, biocompatibility, drugs loaded and therapeutic points of view in order to highlight future therapeutic perspectives.
Collapse
|
4
|
Gregory JV, Vogus DR, Barajas A, Cadena MA, Mitragotri S, Lahann J. Programmable Delivery of Synergistic Cancer Drug Combinations Using Bicompartmental Nanoparticles. Adv Healthc Mater 2020; 9:e2000564. [PMID: 32959525 DOI: 10.1002/adhm.202000564] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/23/2020] [Indexed: 12/27/2022]
Abstract
Delivery of multiple therapeutics has become a preferred method of treating cancer, albeit differences in the biodistribution and pharmacokinetic profiles of individual drugs pose challenges in effectively delivering synergistic drug combinations to and at the tumor site. Here, bicompartmental Janus nanoparticles comprised of domains are reported with distinct bulk properties that allow for independent drug loading and release. Programmable drug release can be triggered by a change in the pH value and depends upon the bulk properties of the polymers used in the respective compartments, rather than the molecular structures of the active agents. Bicompartmental nanoparticles delivering a synergistic combination of lapatinib and paclitaxel result in increased activity against HER2+ breast cancer cells. Surprisingly, the dual drug loaded particles also show significant efficacy toward triple negative breast cancer, even though this cancer model is unresponsive to lapatinib alone. The broad versatility of the nanoparticle platform allows for rapid exploration of a wide range of drug combinations where both their relative drug ratios and temporal release profiles can be optimized.
Collapse
Affiliation(s)
- Jason V. Gregory
- Biointerfaces Institute and Department of Chemical Engineering University of Michigan Ann Arbor MI 48109 USA
| | - Douglas R. Vogus
- John A Paulson School of Engineering and Applied Sciences Harvard University Cambridge MA 02138 USA
| | - Alexandra Barajas
- Department of Chemical Engineering University of California, Santa Barbara Santa Barbara CA 93106 USA
| | - Melissa A. Cadena
- Department of Biomedical Engineering University of Michigan Ann Arbor MI 48109 USA
| | - Samir Mitragotri
- John A Paulson School of Engineering and Applied Sciences Harvard University Cambridge MA 02138 USA
| | - Joerg Lahann
- Biointerfaces Institute and Department of Chemical Engineering University of Michigan Ann Arbor MI 48109 USA
- Department of Biomedical Engineering University of Michigan Ann Arbor MI 48109 USA
| |
Collapse
|
5
|
Electrospun fibers based on carbohydrate gum polymers and their multifaceted applications. Carbohydr Polym 2020; 247:116705. [PMID: 32829833 DOI: 10.1016/j.carbpol.2020.116705] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/12/2020] [Accepted: 06/28/2020] [Indexed: 12/29/2022]
Abstract
Electrospinning has garnered significant attention in view of its many advantages such as feasibility for various polymers, scalability required for mass production, and ease of processing. Extensive studies have been devoted to the use of electrospinning to fabricate various electrospun nanofibers derived from carbohydrate gum polymers in combination with synthetic polymers and/or additives of inorganic or organic materials with gums. In view of the versatility and the widespread choice of precursors that can be deployed for electrospinning, various gums from both, the plants and microbial-based gum carbohydrates are holistically and/or partially included in the electrospinning solution for the preparation of functional composite nanofibers. Moreover, our strategy encompasses a combination of natural gums with other polymers/inorganic or nanoparticles to ensue distinct properties. This early established milestone in functional carbohydrate gum polymer-based composite nanofibers may be deployed by specialized researchers in the field of nanoscience and technology, and especially for exploiting electrospinning of natural gums composites for diverse applications.
Collapse
|
6
|
Graham-Gurysh EG, Murthy AB, Moore KM, Hingtgen SD, Bachelder EM, Ainslie KM. Synergistic drug combinations for a precision medicine approach to interstitial glioblastoma therapy. J Control Release 2020; 323:282-292. [PMID: 32335153 DOI: 10.1016/j.jconrel.2020.04.028] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 04/18/2020] [Indexed: 01/12/2023]
Abstract
Glioblastoma (GBM) is a highly aggressive and heterogeneous form of brain cancer. Genotypic and phenotypic heterogeneity drives drug resistance and tumor recurrence. Combination chemotherapy could overcome drug resistance; however, GBM's location behind the blood-brain barrier severely limits chemotherapeutic options. Interstitial therapy, delivery of chemotherapy locally to the tumor site, via a biodegradable polymer implant can overcome the blood-brain barrier and increase the range of drugs available for therapy. Ideal drug candidates for interstitial therapy are those that are potent against GBM and work in combination with both standard-of-care therapy and new precision medicine targets. Herein we evaluated paclitaxel for interstitial therapy, investigating the effect of combination with both temozolomide, a clinical standard-of-care chemotherapy for GBM, and everolimus, a mammalian target of rapamycin (mTOR) inhibitor that modulates aberrant signaling present in >80% of GBM patients. Tested against a panel of GBM cell lines in vitro, paclitaxel was found to be effective at nanomolar concentrations, complement therapy with temozolomide, and synergize strongly with everolimus. The strong synergism seen with paclitaxel and everolimus was then explored in vivo. Paclitaxel and everolimus were separately formulated into fibrous scaffolds composed of acetalated dextran, a biodegradable polymer with tunable degradation rates, for implantation in the brain. Acetalated dextran degradation rates were tailored to attain matching release kinetics (~3% per day) of both paclitaxel and everolimus to maintain a fixed combination ratio of the two drugs. Combination interstitial therapy of both paclitaxel and everolimus significantly reduced GBM growth and improved progression free survival in two clinically relevant orthotopic models of GBM resection and recurrence. This work illustrates the advantages of synchronized interstitial therapy of paclitaxel and everolimus for post-surgical tumor control of GBM.
Collapse
Affiliation(s)
- Elizabeth G Graham-Gurysh
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA
| | - Ananya B Murthy
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA
| | - Kathryn M Moore
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, USA
| | - Shawn D Hingtgen
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA
| | - Eric M Bachelder
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA
| | - Kristy M Ainslie
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA; Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, USA; Department of Microbiology and Immunology, UNC School of Medicine, University of North Carolina, Chapel Hill, NC, USA.
| |
Collapse
|
7
|
Davidson CD, Jayco DKP, Matera DL, DePalma SJ, Hiraki HL, Wang WY, Baker BM. Myofibroblast activation in synthetic fibrous matrices composed of dextran vinyl sulfone. Acta Biomater 2020; 105:78-86. [PMID: 31945504 PMCID: PMC7369643 DOI: 10.1016/j.actbio.2020.01.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/18/2019] [Accepted: 01/08/2020] [Indexed: 02/07/2023]
Abstract
Mechanical interactions between fibroblasts and their surrounding extracellular matrix (ECM) guide fundamental behaviors such as spreading, migration, and proliferation that underlie disease pathogenesis. The challenges of studying ECM mechanics in vivo have motivated the development of in vitro models of the fibrous ECM in which fibroblasts reside. Natural materials such as collagen hydrogels bear structural and biochemical resemblance to stromal ECM, but mechanistic studies in these settings are often confounded by cell-mediated material degradation and the lack of structural and mechanical tunability. Here, we established a new material system composed of electrospun dextran vinyl sulfone (DexVS) polymeric fibers. These fibrous matrices exhibit mechanical tunability at both the single fiber (80-340 MPa) and bulk matrix (0.77-11.03 kPa) level, as well as long-term stability in mechanical properties over a two-week period. Cell adhesion to these matrices can be either user-defined by functionalizing synthetic fibers with thiolated adhesive peptides or methacrylated heparin to sequester cell-derived ECM proteins. We utilized DexVS fibrous matrices to investigate the role of matrix mechanics on the activation of fibroblasts into myofibroblasts, a key step of the fibrotic progression. In contrast to previous findings with non-fibrous hydrogel substrates, we find that fibroblasts in soft and deformable matrices exhibit increased spreading, focal adhesion formation, proliferation, and myofibroblast activation as compared to cells on stiffer matrices with equivalent starting architecture. STATEMENT OF SIGNIFICANCE: Cellular mechanosensing of fibrillar extracellular matrices plays a critical role in homeostasis and disease progression in stromal connective tissue. Here, we established a new material system composed of electrospun dextran vinyl sulfone polymeric fibers. These matrices exhibit architectural, mechanical, and biochemical tunability to accurately model diverse tissue microenvironments found in the body. In contrast to previous observations with non-fibrous hydrogels, we find that fibroblasts in soft and deformable fibrous matrices exhibit increased spreading and focal adhesion formation as compared to those in stiffer matrices with equivalent architecture. We also investigated the role of matrix stiffness on myofibroblast activation, a critical step in the fibrotic cascade, and find that low stiffness matrices promote increased myofibroblast activation.
Collapse
Affiliation(s)
- Christopher D Davidson
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, United States
| | - Danica Kristen P Jayco
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, United States
| | - Daniel L Matera
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, United States
| | - Samuel J DePalma
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, United States
| | - Harrison L Hiraki
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, United States
| | - William Y Wang
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, United States
| | - Brendon M Baker
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, United States.
| |
Collapse
|
8
|
Moore KM, Graham-Gurysh EG, Bomba HN, Murthy AB, Bachelder EM, Hingtgen SD, Ainslie KM. Impact of composite scaffold degradation rate on neural stem cell persistence in the glioblastoma surgical resection cavity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110846. [PMID: 32279815 DOI: 10.1016/j.msec.2020.110846] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 03/12/2020] [Indexed: 10/24/2022]
Abstract
Tumoricidal neural stem cells (NSCs) are an emerging therapy to combat glioblastoma (GBM). This therapy employs genetically engineered NSCs that secrete tumoricidal agents to seek out and kill tumor foci remaining after GBM surgical resection. Biomaterial scaffolds have previously been utilized to deliver NSCs to the resection cavity. Here, we investigated the impact of scaffold degradation rate on NSC persistence in the brain resection cavity. Composite acetalated dextran (Ace-DEX) gelatin electrospun scaffolds were fabricated with two distinct degradation profiles created by changing the ratio of cyclic to acyclic acetal coverage of Ace-DEX. In vitro, fast degrading scaffolds were fully degraded by one week, whereas slow degrading scaffolds had a half-life of >56 days. The scaffolds also retained distinct degradation profiles in vivo. Two different NSC lines readily adhered to and remained viable on Ace-DEX gelatin scaffolds, in vitro. Therapeutic NSCs secreting tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) had the same TRAIL output as tissue culture treated polystyrene (TCPS) when seeded on both scaffolds. Furthermore, secreted TRAIL was found to be highly potent against the human derived GBM cell line, GBM8, in vitro. Firefly luciferase expressing NSCs were seeded on scaffolds, implanted in a surgical resection cavity and their persistence in the brain was monitored by bioluminescent imaging (BLI). NSC loaded scaffolds were compared to a direct injection (DI) of NSCs in suspension, which is the current clinical approach to NSC therapy for GBM. Fast and slow degrading scaffolds enhanced NSC implantation efficiency 2.87 and 3.08-fold over DI, respectively. Interestingly, scaffold degradation profile did not significantly impact NSC persistence. However, persistence and long-term survival of NSCs was significantly greater for both scaffolds compared to DI, with scaffold implanted NSCs still detected by BLI at day 120 in most mice. Overall, these results highlight the benefit of utilizing a scaffold for application of tumoricidal NSC therapy for GBM.
Collapse
Affiliation(s)
- Kathryn M Moore
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, USA
| | - Elizabeth G Graham-Gurysh
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA
| | - Hunter N Bomba
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA
| | - Ananya B Murthy
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA
| | - Eric M Bachelder
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA
| | - Shawn D Hingtgen
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA; Department of Neurosurgery, UNC School of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Kristy M Ainslie
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, USA; Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA; Department of Microbiology and Immunology, UNC School of Medicine, University of North Carolina, Chapel Hill, NC, USA.
| |
Collapse
|
9
|
Role of nanofibers on MSCs fate: Influence of fiber morphologies, compositions and external stimuli. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 107:110218. [DOI: 10.1016/j.msec.2019.110218] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 09/04/2019] [Accepted: 09/16/2019] [Indexed: 01/09/2023]
|
10
|
Zink M, Hotzel K, Schubert US, Heinze T, Fischer D. Amino Acid–Substituted Dextran‐Based Non‐Viral Vectors for Gene Delivery. Macromol Biosci 2019; 19:e1900085. [DOI: 10.1002/mabi.201900085] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/08/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Matthias Zink
- Institute of PharmacyFriedrich Schiller University Jena Lessingstrasse 8 D‐07743 Jena Germany
| | - Konrad Hotzel
- Friedrich Schiller University Jena Humboldtstraße 10 D‐07743 Jena Germany
- Friedrich Schiller University Jena Humboldtstraße 10 D‐07743 Jena Germany
| | - Ulrich S. Schubert
- Friedrich Schiller University Jena Humboldtstraße 10 D‐07743 Jena Germany
- Friedrich Schiller University Jena Philosophenweg 7 D‐07743 Jena Germany
| | - Thomas Heinze
- Friedrich Schiller University Jena Humboldtstraße 10 D‐07743 Jena Germany
- Friedrich Schiller University Jena Humboldtstraße 10 D‐07743 Jena Germany
- Friedrich Schiller University Jena Philosophenweg 7 D‐07743 Jena Germany
| | - Dagmar Fischer
- Institute of PharmacyFriedrich Schiller University Jena Lessingstrasse 8 D‐07743 Jena Germany
- Friedrich Schiller University Jena Philosophenweg 7 D‐07743 Jena Germany
| |
Collapse
|
11
|
Mehta P, Zaman A, Smith A, Rasekh M, Haj‐Ahmad R, Arshad MS, der Merwe S, Chang M, Ahmad Z. Broad Scale and Structure Fabrication of Healthcare Materials for Drug and Emerging Therapies via Electrohydrodynamic Techniques. ADVANCED THERAPEUTICS 2018. [DOI: 10.1002/adtp.201800024] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Prina Mehta
- Leicester School of PharmacyDe Montfort University Leicester LE1 9BH UK
| | - Aliyah Zaman
- Leicester School of PharmacyDe Montfort University Leicester LE1 9BH UK
| | - Ashleigh Smith
- School of Pharmacy and Biomedical SciencesSt. Michael's BuildingUniversity of Portsmouth White Swan Road Portsmouth PO1 2DT UK
| | - Manoochehr Rasekh
- Leicester School of PharmacyDe Montfort University Leicester LE1 9BH UK
| | - Rita Haj‐Ahmad
- Leicester School of PharmacyDe Montfort University Leicester LE1 9BH UK
| | | | - Susanna der Merwe
- School of Pharmacy and Biomedical SciencesSt. Michael's BuildingUniversity of Portsmouth White Swan Road Portsmouth PO1 2DT UK
| | - M.‐W. Chang
- College of Biomedical Engineering and Instrument ScienceZhejiang University Hangzhou 310027 China
- Zhejiang Provincial Key Laboratory of Cardio‐Cerebral Vascular Detection Technology and Medicinal Effectiveness AppraisalZhejiang University Hangzhou 310027 China
| | - Z. Ahmad
- Leicester School of PharmacyDe Montfort University Leicester LE1 9BH UK
| |
Collapse
|
12
|
Zhu Q, Li X, Fan Z, Xu Y, Niu H, Li C, Dang Y, Huang Z, Wang Y, Guan J. Biomimetic polyurethane/TiO 2 nanocomposite scaffolds capable of promoting biomineralization and mesenchymal stem cell proliferation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 85:79-87. [PMID: 29407160 PMCID: PMC5805475 DOI: 10.1016/j.msec.2017.12.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/24/2017] [Accepted: 12/07/2017] [Indexed: 12/24/2022]
Abstract
Scaffolds with extracellular matrix-like fibrous morphology, suitable mechanical properties, biomineralization capability, and excellent cytocompatibility are desired for bone regeneration. In this work, fibrous and degradable poly(ester urethane)urea (PEUU) scaffolds reinforced with titanium dioxide nanoparticles (nTiO2) were fabricated to possess these properties. To increase the interfacial interaction between PEUU and nTiO2, poly(ester urethane) (PEU) was grafted onto the nTiO2. The scaffolds were fabricated by electrospinning and exhibited fiber diameter of <1μm. SEM and EDX mapping results demonstrated that the PEU modified nTiO2 was homogeneously distributed in the fibers. In contrast, severe agglomeration was found in the scaffolds with unmodified nTiO2. PEU modified nTiO2 significantly increased Young's modulus and tensile stress of the PEUU scaffolds while unmodified nTiO2 significantly decreased Young's modulus and tensile stress. The greatest reinforcement effect was observed for the scaffold with 1:1 ratio of PEUU and PEU modified nTiO2. When incubating in the simulated body fluid over an 8-week period, biomineralization was occurred on the fibers. The scaffolds with PEU modified nTiO2 showed the highest Ca and P deposition than pure PEUU scaffold and PEUU scaffold with unmodified nTiO2. To examine scaffold cytocompatibility, bone marrow-derived mesenchymal stem cells were cultured on the scaffold. The PEUU scaffold with PEU modified nTiO2 demonstrated significantly higher cell proliferation compared to pure PEUU scaffold and PEUU scaffold with unmodified nTiO2. The above results demonstrate that the developed fibrous nanocomposite scaffolds have potential for bone tissue regeneration.
Collapse
Affiliation(s)
- Qingxia Zhu
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA; Department of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jiangxi 333001, China
| | - Xiaofei Li
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
| | - Zhaobo Fan
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
| | - Yanyi Xu
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
| | - Hong Niu
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
| | - Chao Li
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
| | - Yu Dang
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
| | - Zheng Huang
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
| | - Yun Wang
- Division of Periodontology, The Ohio State University, 305 W. 12th Avenue, Columbus, OH 43210, USA
| | - Jianjun Guan
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA.
| |
Collapse
|
13
|
Graham-Gurysh E, Moore KM, Satterlee AB, Sheets KT, Lin FC, Bachelder EM, Miller CR, Hingtgen SD, Ainslie KM. Sustained Delivery of Doxorubicin via Acetalated Dextran Scaffold Prevents Glioblastoma Recurrence after Surgical Resection. Mol Pharm 2018; 15:1309-1318. [PMID: 29342360 DOI: 10.1021/acs.molpharmaceut.7b01114] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The primary cause of mortality for glioblastoma (GBM) is local tumor recurrence following standard-of-care therapies, including surgical resection. With most tumors recurring near the site of surgical resection, local delivery of chemotherapy at the time of surgery is a promising strategy. Herein drug-loaded polymer scaffolds with two distinct degradation profiles were fabricated to investigate the effect of local drug delivery rate on GBM recurrence following surgical resection. The novel biopolymer, acetalated dextran (Ace-DEX), was compared with commercially available polyester, poly(l-lactide) (PLA). Steady-state doxorubicin (DXR) release from Ace-DEX scaffolds was found to be faster when compared with scaffolds composed of PLA, in vitro. This increased drug release rate translated to improved therapeutic outcomes in a novel surgical model of orthotopic glioblastoma resection and recurrence. Mice treated with DXR-loaded Ace-DEX scaffolds (Ace-DEX/10DXR) resulted in 57% long-term survival out to study completion at 120 days compared with 20% survival following treatment with DXR-loaded PLA scaffolds (PLA/10DXR). Additionally, all mice treated with PLA/10DXR scaffolds exhibited disease progression by day 38, as defined by a 5-fold growth in tumor bioluminescent signal. In contrast, 57% of mice treated with Ace-DEX/10DXR scaffolds displayed a reduction in tumor burden, with 43% exhibiting complete remission. These results underscore the importance of polymer choice and drug release rate when evaluating local drug delivery strategies to improve prognosis for GBM patients undergoing tumor resection.
Collapse
Affiliation(s)
- Elizabeth Graham-Gurysh
- Division of Pharmacoengineering and Molecular Pharmaceutics , Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Kathryn M Moore
- Joint Department of Biomedical Engineering , University of North Carolina at Chapel Hill and North Carolina State University , Raleigh , North Carolina 27695 , United States
| | - Andrew B Satterlee
- Division of Pharmacoengineering and Molecular Pharmaceutics , Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Kevin T Sheets
- Division of Pharmacoengineering and Molecular Pharmaceutics , Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Feng-Chang Lin
- Department of Biostatistics and North Carolina Translational and Clinical Sciences Institute , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Eric M Bachelder
- Division of Pharmacoengineering and Molecular Pharmaceutics , Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - C Ryan Miller
- Division of Neuropathology, Department of Pathology and Laboratory Medicine, Departments of Neurology and Pharmacology, Lineberger Comprehensive Cancer Center, and Neuroscience Center, School of Medicine , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Shawn D Hingtgen
- Division of Pharmacoengineering and Molecular Pharmaceutics , Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Kristy M Ainslie
- Division of Pharmacoengineering and Molecular Pharmaceutics , Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| |
Collapse
|
14
|
Gallovic MD, Montjoy DG, Collier MA, Do C, Wyslouzil BE, Bachelder EM, Ainslie KM. Chemically modified inulin microparticles serving dual function as a protein antigen delivery vehicle and immunostimulatory adjuvant. Biomater Sci 2017; 4:483-93. [PMID: 26753184 DOI: 10.1039/c5bm00451a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
To develop a new subunit vaccine adjuvant, we chemically modified a naturally-occurring, immunostimulatory inulin polysaccharide to produce an acid-sensitive biopolymer (acetalated inulin, Ace-IN). Various hydrophobic Ace-IN polymers were formed into microparticles (MPs) by oil-in-water emulsions followed by solvent evaporation These Ace-IN MPs possessed tunable degradation characteristics that, unlike polyesters used in FDA-approved microparticulate formulations, had only pH-neutral hydrolytic byproducts. Macrophages were passively targeted with cytocompatible Ace-IN MPs. TNF-α production by macrophages treated with Ace-IN MPs could be altered by adjusting the polymers' chemistry. Mice immunized with Ace-IN MPs encapsulating a model ovalbumin (OVA) antigen showed higher production of anti-OVA IgG antibody levels relative to soluble antigen. The antibody titers were also comparable to an alum-based formulation. This proof-of-concept establishes the potential for chemically-modified inulin MPs to simultaneously enable dual functionality as a stimuli-controlled antigen delivery vehicle and immunostimulatory adjuvant.
Collapse
Affiliation(s)
- Matthew D Gallovic
- Department of Chemical and Biomolecular Engineering, College of Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Douglas G Montjoy
- Department of Chemical and Biomolecular Engineering, College of Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Michael A Collier
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA.
| | - Clement Do
- Division of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
| | - Barbara E Wyslouzil
- Department of Chemical and Biomolecular Engineering, College of Engineering, The Ohio State University, Columbus, OH 43210, USA and Department of Chemistry and Biochemistry, College of Arts and Sciences, The Ohio State University, Columbus, Ohio 43210, USA
| | - Eric M Bachelder
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA.
| | - Kristy M Ainslie
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA.
| |
Collapse
|
15
|
Chen N, Collier MA, Gallovic MD, Collins GC, Sanchez CC, Fernandes EQ, Bachelder EM, Ainslie KM. Degradation of acetalated dextran can be broadly tuned based on cyclic acetal coverage and molecular weight. Int J Pharm 2016; 512:147-157. [PMID: 27543351 DOI: 10.1016/j.ijpharm.2016.08.031] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 08/09/2016] [Accepted: 08/15/2016] [Indexed: 01/11/2023]
Abstract
Microparticles (MPs) derived from acid-sensitive biopolymers enable rapid degradation and cargo release under acidic conditions, such as at tumor microenvironments, within lysosomal/phagosomal compartments inside phagocytic cells, or at sites of inflammation. One such acid-sensitive biopolymer, acetalated dextran (Ace-DEX), has tunable degradation rates and pH-neutral degradation byproducts consisting of dextran, acetone, and ethanol. By studying the degradation profiles of Ace-DEX MPs with varying cyclic acetal coverage (CAC) and dextran molecular weight (MW), we concluded that MPs composed of low CAC or high MW polymer degraded the fastest at both pH 7.4 and 5.0. To further understand the properties of this unique polymer, we encapsulated a model drug resiquimod, which is a toll-like receptor (TLR) 7/8 agonist, into Ace-DEX MPs of different polymer CAC and dextran MW. It was observed that resiquimod was released faster from MPs of lower CAC or higher MW. By evaluating the activation of RAW macrophages cultured with different types of resiquimod-loaded Ace-DEX MPs, we found that MPs of lower CAC or higher MW promoted greater nitrite production and resulted in more robust cell activation. Our results indicate we can precisely control the degradation profile, release kinetics, and bioactivity of encapsulated cargos by altering CAC and MW, furthering Ace-DEX MPs' novelty as a drug carrier.
Collapse
Affiliation(s)
- Naihan Chen
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, NC, USA
| | - Michael A Collier
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, NC, USA
| | - Matthew D Gallovic
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, NC, USA; Department of Chemical and Biomolecular Engineering, College of Engineering, The Ohio State University, Columbus, OH, USA
| | - Graham C Collins
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, NC, USA
| | - Carla C Sanchez
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, NC, USA
| | - Elizabeth Q Fernandes
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, NC, USA
| | - Eric M Bachelder
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, NC, USA
| | - Kristy M Ainslie
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, NC, USA.
| |
Collapse
|
16
|
Saquinavir Loaded Acetalated Dextran Microconfetti - a Long Acting Protease Inhibitor Injectable. Pharm Res 2016; 33:1998-2009. [PMID: 27154460 DOI: 10.1007/s11095-016-1936-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 04/27/2016] [Indexed: 01/18/2023]
Abstract
PURPOSE Since the adoption of highly active antiretroviral therapy, HIV disease progression has slowed across the world; however, patients are often required to take multiple medications daily of poorly bioavailable drugs via the oral route, leading to gastrointestinal irritation. Recently, long acting antiretroviral injectables that deliver drug for months at a time have moved into late phase clinical trials. Unfortunately, these solid phase crystal formulations have inherent drawbacks in potential dose dumping and a greater likelihood for burst release of drug compared to polymeric formulations. METHODS Using electrospinning, acetalated dextran scaffolds containing the protease inhibitor saquinavir were created. Grinding techniques were then used to process these scaffolds into injectables which are termed saquinavir microconfetti. Microconfetti was analyzed for in vitro and in vivo release kinetics. RESULTS Highly saquinavir loaded acetalated dextran electrospun fibers were able to be formed and processed into saquinavir microconfetti while other polymers such as poly lactic-co-glycolic acid and polycaprolactone were unable to do so. Saquinavir microconfetti release kinetics were able to be tuned via drug loading and polymer degradation rates. In vivo, a single subcutaneous injection of saquinavir microconfetti released drug for greater than a week with large tissue retention. CONCLUSIONS Microconfetti is a uniquely tunable long acting injectable that would reduce the formation of adherence related HIV resistance. Our findings suggest that the injectable microconfetti delivery system could be used for long acting controlled release of saquinavir and other hydrophobic small molecule drugs.
Collapse
|
17
|
Collier MA, Peine KJ, Gautam S, Oghumu S, Varikuti S, Borteh H, Papenfuss TL, Sataoskar AR, Bachelder EM, Ainslie KM. Host-mediated Leishmania donovani treatment using AR-12 encapsulated in acetalated dextran microparticles. Int J Pharm 2016; 499:186-194. [PMID: 26768723 DOI: 10.1016/j.ijpharm.2016.01.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 12/29/2015] [Accepted: 01/04/2016] [Indexed: 12/15/2022]
Abstract
Leishmaniasis is a disease caused by parasites of Leishmania sp., which effects nearly 12 million people worldwide and is associated with treatment complications due to widespread parasite resistance toward pathogen-directed therapeutics. The current treatments for visceral leishmaniasis (VL), the systemic form of the disease, involve pathogen-mediated drugs and have long treatment regimens, increasing the risk of forming resistant strains. One way to limit emergence of resistant pathogens is through the use of host-mediated therapeutics. The host-mediated therapeutic AR-12, which is FDA IND-approved for cancer treatment, has shown activity against a broad spectrum of intracellular pathogens; however, due to hydrophobicity and toxicity, it is difficult to reach therapeutic doses. We have formulated AR-12 into microparticles (AR-12/MPs) using the novel biodegradable polymer acetalated dextran (Ace-DEX) and used this formulation for the systemic treatment of VL. Treatment with AR-12/MPs significantly reduced liver, spleen, and bone marrow parasite loads in infected mice, while combinatorial therapies with amphotericin B had an even more significant effect. Overall, AR-12/MPs offer a unique, host-mediated therapy that could significantly reduce the emergence of drug resistance in the treatment of VL.
Collapse
Affiliation(s)
- M A Collier
- Division of Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - K J Peine
- Division of Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - S Gautam
- Division of Pharmaceutics, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - S Oghumu
- Department of Pathology, The Ohio State's Wexner Medical Center, The Ohio State University, Columbus, OH 43210, United States
| | - S Varikuti
- Department of Pathology, The Ohio State's Wexner Medical Center, The Ohio State University, Columbus, OH 43210, United States
| | - H Borteh
- Division of Pharmaceutics, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - T L Papenfuss
- Department of Pathology, The Ohio State's Wexner Medical Center, The Ohio State University, Columbus, OH 43210, United States
| | - A R Sataoskar
- College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, United States
| | - E M Bachelder
- Division of Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - K M Ainslie
- Division of Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States.
| |
Collapse
|
18
|
Nair BP, Vaikkath D, Mohan DS, Nair PD. Fabrication of a microvesicles-incorporated fibrous membrane for controlled delivery applications in tissue engineering. Biofabrication 2014; 6:045008. [DOI: 10.1088/1758-5082/6/4/045008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|