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Liu L, Li Z, Yang B, Jia X, Wang S. Recent Research Progress on Polyamidoamine-Engineered Hydrogels for Biomedical Applications. Biomolecules 2024; 14:620. [PMID: 38927024 PMCID: PMC11201556 DOI: 10.3390/biom14060620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/14/2024] [Accepted: 05/15/2024] [Indexed: 06/28/2024] Open
Abstract
Hydrogels are three-dimensional crosslinked functional materials with water-absorbing and swelling properties. Many hydrogels can store a variety of small functional molecules to structurally and functionally mimic the natural extracellular matrix; hence, they have been extensively studied for biomedical applications. Polyamidoamine (PAMAM) dendrimers have an ethylenediamine core and a large number of peripheral amino groups, which can be used to engineer various polymer hydrogels. In this review, an update on the progress of using PAMAM dendrimers for multifunctional hydrogel design was given. The synthesis of these hydrogels, which includes click chemistry reactions, aza-Michael addition, Schiff base reactions, amidation reactions, enzymatic reactions, and radical polymerization, together with research progress in terms of their application in the fields of drug delivery, tissue engineering, drug-free tumor therapy, and other related fields, was discussed in detail. Furthermore, the biomedical applications of PAMAM-engineered nano-hydrogels, which combine the advantages of dendrimers, hydrogels, and nanoparticles, were also summarized. This review will help researchers to design and develop more functional hydrogel materials based on PAMAM dendrimers.
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Affiliation(s)
- Li Liu
- Outpatient Department of Anhui Medical University First Affiliated Hospital, The First Affiliated Hospital of Anhui Medical University, No. 120 Wanshui Road, Hefei High-Tech Zone, Hefei 230000, China
| | - Zhiling Li
- Outpatient Department of Anhui Medical University First Affiliated Hospital, The First Affiliated Hospital of Anhui Medical University, No. 120 Wanshui Road, Hefei High-Tech Zone, Hefei 230000, China
| | - Baiyan Yang
- Outpatient Department of Anhui Medical University First Affiliated Hospital, The First Affiliated Hospital of Anhui Medical University, No. 120 Wanshui Road, Hefei High-Tech Zone, Hefei 230000, China
| | - Xiaoqing Jia
- School of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, China
| | - Shige Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, China
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2
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Kędra K, Oledzka E, Sobczak M. Self-Immolative Domino Dendrimers as Anticancer-Drug Delivery Systems: A Review. Pharmaceutics 2024; 16:668. [PMID: 38794329 PMCID: PMC11125333 DOI: 10.3390/pharmaceutics16050668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/06/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
Worldwide cancer statistics have indicated about 20 million new cancer cases and over 10 million deaths in 2022 (according to data from the International Agency for Research on Cancer). One of the leading cancer treatment strategies is chemotherapy, using innovative drug delivery systems (DDSs). Self-immolative domino dendrimers (SIDendr) for triggered anti-cancer drugs appear to be a promising type of DDSs. The present review provides an up-to-date survey on the contemporary advancements in the field of SIDendr-based anti-cancer drug delivery systems (SIDendr-ac-DDSs) through an exhaustive analysis of the discovery and application of these materials in improving the pharmacological effectiveness of both novel and old drugs. In addition, this article discusses the designing, chemical structure, and targeting techniques, as well as the properties, of several SIDendr-based DDSs. Approaches for this type of targeted DDSs for anti-cancer drug release under a range of stimuli are also explored.
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Affiliation(s)
- Karolina Kędra
- Institute of Physical Chemistry, Polish Academy of Sciences, 44/52 Kasprzaka Str., 01-224 Warsaw, Poland;
| | - Ewa Oledzka
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry and Biomaterials, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland;
| | - Marcin Sobczak
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry and Biomaterials, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland;
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3
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Chien ST, Suydam IT, Woodrow KA. Prodrug approaches for the development of a long-acting drug delivery systems. Adv Drug Deliv Rev 2023; 198:114860. [PMID: 37160248 PMCID: PMC10498988 DOI: 10.1016/j.addr.2023.114860] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 05/01/2023] [Accepted: 05/02/2023] [Indexed: 05/11/2023]
Abstract
Long-acting formulations are designed to reduce dosing frequency and simplify dosing schedules by providing an extended duration of action. One approach to obtain long-acting formulations is to combine long-acting prodrugs (LA-prodrug) with existing or emerging drug delivery technologies (DDS). The design criteria for long-acting prodrugs are distinct from conventional prodrug strategies that alter absorption, distribution, metabolism, and excretion (ADME) parameters. Our review focuses on long-acting prodrug delivery systems (LA-prodrug DDS), which is a subcategory of long-acting formulations where prodrug design enables DDS formulation to achieve an extended duration of action that is greater than the parent drug. Here, we define LA-prodrugs as the conjugation of an active pharmaceutical ingredient (API) to a promoiety group via a cleavable covalent linker, where both the promoiety and linker are selected to enable formulation and administration from a drug delivery system (DDS) to achieve an extended duration of action. These LA-prodrug DDS results in an extended interval where the API is within a therapeutic range without necessarily altering ADME as is typical of conventional prodrugs. The conversion of the LA-prodrug to the API is dependent on linker cleavage, which can occur before or after release from the DDS. The requirement for linker cleavage provides an additional tool to prolong release from these LA-prodrug DDS. In addition, the physicochemical properties of drugs can be tuned by promoiety selection for a particular DDS. Conjugation with promoieties that are carriers or amenable to assembly into carriers can also provide access to formulations designed for extending duration of action. LA-prodrugs have been applied to a wide variety of drug delivery strategies and are categorized in this review by promoiety size and complexity. Small molecule promoieties (typically MW < 1000 Da) have been used to improve encapsulation or partitioning as well as broaden APIs for use with traditional long-acting formulations such as solid drug dispersions. Macromolecular promoieties (typically MW > 1000 Da) have been applied to hydrogels, nanoparticles, micelles, dendrimers, and polymerized prodrug monomers. The resulting LA-prodrug DDS enable extended duration of action for active pharmaceuticals across a wide range of applications, with target release timescales spanning days to years.
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Affiliation(s)
- Shin-Tian Chien
- Department of Bioengineering, University of Washington, Seattle, WA 98105, United States
| | - Ian T Suydam
- Department of Bioengineering, University of Washington, Seattle, WA 98105, United States
| | - Kim A Woodrow
- Department of Bioengineering, University of Washington, Seattle, WA 98105, United States.
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4
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An H, Deng X, Wang F, Xu P, Wang N. Dendrimers as Nanocarriers for the Delivery of Drugs Obtained from Natural Products. Polymers (Basel) 2023; 15:polym15102292. [PMID: 37242865 DOI: 10.3390/polym15102292] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
Natural products have proven their value as drugs that can be therapeutically beneficial in the treatment of various diseases. However, most natural products have low solubility and poor bioavailability, which pose significant challenges. To solve these issues, several drug nanocarriers have been developed. Among these methods, dendrimers have emerged as vectors for natural products due to their superior advantages, such as a controlled molecular structure, narrow polydispersity index, and the availability of multiple functional groups. This review summarizes current knowledge on the structures of dendrimer-based nanocarriers for natural compounds, with a particular focus on applications in alkaloids and polyphenols. Additionally, it highlights the challenges and perspectives for future development in clinical therapy.
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Affiliation(s)
- Huan An
- Department of TCM Literature, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou 310007, China
| | - Xuehui Deng
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 310007, China
| | - Fang Wang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 310007, China
| | - Pingcui Xu
- Department of TCM Literature, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou 310007, China
| | - Nani Wang
- Department of TCM Literature, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou 310007, China
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Wang J, Li B, Kompella UB, Yang H. Dendrimer and dendrimer gel-derived drug delivery systems: Breaking bottlenecks of topical administration of glaucoma medications. MEDCOMM - BIOMATERIALS AND APPLICATIONS 2023; 2:e30. [PMID: 38562247 PMCID: PMC10983815 DOI: 10.1002/mba2.30] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 12/13/2022] [Indexed: 04/04/2024]
Abstract
Due to high structural flexibility, multidrug carrying capability, and tunable size, dendrimers have been used as suitable carriers for ophthalmic drug delivery. Drug molecules can be either encapsulated or chemically coupled to dendrimers. The nanoscopic size, spheroidal shape, and cationic surface of polyamidoamine (PAMAM) dendrimers promote their interaction with the cornea and result in prolonged precorneal retention. Dendrimers could be further cross-linked to produce three-dimensional hydrogel networks or dendrimer hydrogels (DH). The properties of the DH can be readily adjusted to maintain both fluidity and adhesiveness, making them suitable for developing topical ocular drug formulations. Micro-/nano-sized DHs, that is, dendrimer micro-/nano-gels, have unique properties such as ease of administration, large specific surface area for adhesion, and drug targeting functionalities, making them attractive for ophthalmic drug delivery. This perspective reports advances in PAMAM dendrimer based drug delivery systems including drug conjugates and micro- and nano-gels to enhance and sustain the delivery of multiple anti-glaucoma drugs, Dendrimer and dendrimer gel-derived drug delivery systems hold great potential as multifunctional topical drug delivery systems for the eye.
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Affiliation(s)
- Juan Wang
- College of Biomedical Engineering, Sichuan University, Chengdu, Sichuan, China
| | - Boxuan Li
- Tianjin Key Laboratory of Biomedical Materials, Key Laboratory of Biomaterials and Nanotechnology for Cancer Immunotherapy, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Uday B. Kompella
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Hu Yang
- Linda and Bipin Doshi Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri, USA
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6
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Paolino M, Varvarà P, Saletti M, Reale A, Gentile M, Paccagnini E, Giuliani G, Komber H, Licciardi M, Cappelli A. Hyaluronan‐coated poly(propylene imine) dendrimers as biomimetic nanocarriers of doxorubicin. J Appl Polym Sci 2022. [DOI: 10.1002/app.53300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Marco Paolino
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Siena Italy
| | - Paola Varvarà
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF) Università degli Studi di Palermo Palermo Italy
| | - Mario Saletti
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Siena Italy
| | - Annalisa Reale
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Siena Italy
| | - Mariangela Gentile
- Dipartimento di Scienze della Vita Università degli Studi di Siena Siena Italy
| | - Eugenio Paccagnini
- Dipartimento di Scienze della Vita Università degli Studi di Siena Siena Italy
| | - Germano Giuliani
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Siena Italy
| | - Hartmut Komber
- Center Macromolecular Structure Analysis Leibniz Institute for Polymer Research Dresden Germany
| | - Mariano Licciardi
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF) Università degli Studi di Palermo Palermo Italy
| | - Andrea Cappelli
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Siena Italy
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Li H, Zha S, Li H, Liu H, Wong KL, All AH. Polymeric Dendrimers as Nanocarrier Vectors for Neurotheranostics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203629. [PMID: 36084240 DOI: 10.1002/smll.202203629] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 08/01/2022] [Indexed: 06/15/2023]
Abstract
Dendrimers are polymers with well-defined 3D branched structures that are vastly utilized in various neurotheranostics and biomedical applications, particularly as nanocarrier vectors. Imaging agents can be loaded into dendrimers to improve the accuracy of diagnostic imaging processes. Likewise, combining pharmaceutical agents and anticancer drugs with dendrimers can enhance their solubility, biocompatibility, and efficiency. Practically, by modifying ligands on the surface of dendrimers, effective therapeutic and diagnostic platforms can be constructed and implemented for targeted delivery. Dendrimer-based nanocarriers also show great potential in gene delivery. Since enzymes can degrade genetic materials during their blood circulation, dendrimers exhibit promising packaging and delivery alternatives, particularly for central nervous system (CNS) treatments. The DNA and RNA encapsulated in dendrimers represented by polyamidoamine that are used for targeted brain delivery, via chemical-structural adjustments and appropriate generation, significantly improve the correlation between transfection efficiency and cytotoxicity. This article reports a comprehensive review of dendrimers' structures, synthesis processes, and biological applications. Recent progress in diagnostic imaging processes and therapeutic applications for cancers and other CNS diseases are presented. Potential challenges and future directions in the development of dendrimers, which provide the theoretical basis for their broader applications in healthcare, are also discussed.
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Affiliation(s)
- Hengde Li
- Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon, Hong Kong SAR, P. R. China
| | - Shuai Zha
- Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon, Hong Kong SAR, P. R. China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, P. R. China
| | - Haolan Li
- Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon, Hong Kong SAR, P. R. China
| | - Haitao Liu
- Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon, Hong Kong SAR, P. R. China
| | - Ka-Leung Wong
- Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon, Hong Kong SAR, P. R. China
| | - Angelo H All
- Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon, Hong Kong SAR, P. R. China
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8
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Exploring dendrimer-based drug delivery systems and their potential applications in cancer immunotherapy. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111471] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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9
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Wang J, Li B, Qiu L, Qiao X, Yang H. Dendrimer-based drug delivery systems: history, challenges, and latest developments. J Biol Eng 2022; 16:18. [PMID: 35879774 PMCID: PMC9317453 DOI: 10.1186/s13036-022-00298-5] [Citation(s) in RCA: 77] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 07/01/2022] [Indexed: 11/16/2022] Open
Abstract
Since the first dendrimer was reported in 1978 by Fritz Vögtle, dendrimer research has grown exponentially, from synthesis to application in the past four decades. The distinct structure characteristics of dendrimers include nanoscopic size, multi-functionalized surface, high branching, cavernous interior, and so on, making dendrimers themselves ideal drug delivery vehicles. This mini review article provides a brief overview of dendrimer’s history and properties and the latest developments of dendrimers as drug delivery systems. This review focuses on the latest progress in the applications of dendrimers as drug and gene carriers, including 1) active drug release strategies to dissociate drug/gene from dendrimer in response to stimuli; 2) size-adaptive and charge reversal dendrimer delivery systems that can better take advantage of the size and surface properties of dendrimer; 3) bulk and micro/nano dendrimer gel delivery systems. The recent advances in dendrimer formulations may lead to the generation of new drug and gene products and enable the development of novel combination therapies.
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Affiliation(s)
- Juan Wang
- College of Biomedical Engineering, Sichuan University, Chengdu, 610065, Sichuan, China.
| | - Boxuan Li
- Tianjin Key Laboratory of Biomedical Materials, Key Laboratory of Biomaterials and Nanotechnology for Cancer Immunotherapy, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China
| | - Li Qiu
- College of Biomedical Engineering, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Xin Qiao
- College of Biomedical Engineering, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Hu Yang
- Linda and Bipin Doshi Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, MO, 65409, USA
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Kass LE, Nguyen J. Nanocarrier-hydrogel composite delivery systems for precision drug release. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2022; 14:e1756. [PMID: 34532989 PMCID: PMC9811486 DOI: 10.1002/wnan.1756] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 08/11/2021] [Accepted: 08/19/2021] [Indexed: 01/07/2023]
Abstract
Hydrogels are a class of biomaterials widely implemented in medical applications due to their biocompatibility and biodegradability. Despite the many successes of hydrogel-based delivery systems, there remain challenges to hydrogel drug delivery such as a burst release at the time of administration, a limited ability to encapsulate certain types of drugs (i.e., hydrophobic drugs, proteins, antibodies, and nucleic acids), and poor tunability of geometry and shape for controlled drug release. This review discusses two main important advances in hydrogel fabrication for precision drug release: first, the incorporation of nanocarriers to diversify their drug loading capability, and second, the design of hydrogels using 3D printing to precisely control drug dosing and release kinetics via high-resolution structures and geometries. We also outline ongoing challenges and discuss opportunities to further optimize drug release from hydrogels for personalized medicine. This article is categorized under: Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Therapeutic Approaches and Drug Discovery > Emerging Technologies.
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Affiliation(s)
| | - Juliane Nguyen
- Corresponding author: Juliane Nguyen, Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA,
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11
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Chowdhury S, Toth I, Stephenson RJ. Dendrimers in vaccine delivery: Recent progress and advances. Biomaterials 2021; 280:121303. [PMID: 34871877 DOI: 10.1016/j.biomaterials.2021.121303] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 11/08/2021] [Accepted: 11/29/2021] [Indexed: 12/19/2022]
Abstract
Dendrimers are well-defined, highly branched, multivalent and monodisperse molecules which host a range of attractive, yet functional, chemical and biological characteristics. A dendrimers accessible surface groups enable coupling to different functional moieties (e.g., antibodies, peptides, proteins, etc), which is further assisted by the dendrimers tailored size and surface charge. This adaptability allows for the preparation of molecularly precise vaccines with highly specific and predictable properties, and in conjunction with a dendrimers immune stimulating (adjuvanting) property, makes dendrimers attractive substrates for biomedical applications, including vaccines. This review highlights the structural and synthetic evolution of dendrimers throughout history, detailing the dendrimers role as both an adjuvant and carrier system for vaccine antigens, in addition to reviewing the development of commercially available vaccines for use in humans.
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Affiliation(s)
- Silvia Chowdhury
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia; Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072 Australia.
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia; School of Pharmacy, The University of Queensland, Brisbane, QLD 4072, Australia; Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072 Australia.
| | - Rachel J Stephenson
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia.
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12
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Wang J, Li B, Huang D, Norat P, Grannonico M, Cooper RC, Gui Q, Chow WN, Liu X, Yang H. Nano-in-Nano Dendrimer Gel Particles for Efficient Topical Delivery of Antiglaucoma Drugs into the Eye. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2021; 425:130498. [PMID: 34121919 PMCID: PMC8194049 DOI: 10.1016/j.cej.2021.130498] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Low bioavailability of topically applied drugs remains a significant challenge for long-term glaucoma therapy. To enhance drug delivery efficiency, we developed dendrimer gel particles that collectively exhibit structural benefits of dendrimer, hydrogel, and particles, using the inverse emulsion method coupled with the highly efficient aza-Michael addition reaction (IEaMA). This hierarchical approach would maximize the utility of the structural features of existing ocular drug delivery systems. We have tested the delivery efficiency and efficacy of two first-line antiglaucoma drugs, brimonidine tartrate (BT) and timolol maleate (TM), which were loaded into dendrimer gel particles of various sizes, i.e., nDHP (nano-in-nano dendrimer hydrogel particles, ~200 nm), μDHP3 (3 μm), and μDHP10 (9 μm). We found that nDHP was superior to μDHP3 and μDHP10 in terms of cytocompatibility, degradability, drug release kinetics, and corneal permeability. The nDHPs increased drug corneal permeability by 17-fold compared to plain drug solution and enabled zero-order prolonged drug release kinetics. The nDHP-based formulation demonstrated pronounced IOP-lowering effects in both single-dose test and 7-day chronic daily dosing test in both Brown Norway rats and glaucoma mice. Taken together, we have developed nano-in-nano dendrimer gel particles for precise dosing and enabling sustained and synergistic efficacy of antiglaucoma drugs, which could be clinically impactful for improving glaucoma treatment.
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Affiliation(s)
- Juan Wang
- College of Biomedical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Boxuan Li
- Tianjin Key Laboratory of Biomedical Materials, Key Laboratory of Biomaterials and Nanotechnology for Cancer Immunotherapy, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China
| | - Da Huang
- Linda and Bipin Doshi Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409, United States
| | - Pedro Norat
- Department of Biology, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Marta Grannonico
- Department of Biology, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Remy C. Cooper
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia 23298, United States
| | - Qin Gui
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia 23219, United States
| | - Woon Nam Chow
- Department of Pathology, Virginia Commonwealth University, Richmond, Virginia 23298, United States
- Department of Ophthalmology, Virginia Commonwealth University, Richmond, Virginia 23298, United States
| | - Xiaorong Liu
- Department of Biology, University of Virginia, Charlottesville, Virginia 22904, United States
- Department of Psychology, University of Virginia, Charlottesville, Virginia 22904, United States
- Corresponding authors: (XL), (HY)
| | - Hu Yang
- Linda and Bipin Doshi Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409, United States
- Corresponding authors: (XL), (HY)
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Abstract
Smart hydrogels are of great interest in areas such as drug delivery and sensing. Dendrimer-based hydrogels can exhibit tunable properties due to their structural precision. We prepared hydrogels from self-immolative dendrons. Controlled hydrogel degradation in response to light was demonstrated and the hydrogel properties as a function of dendron generation were compared.
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Affiliation(s)
- Karanpreet Gill
- Department of Chemistry and Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, N6A 5B7, Canada.
| | - Xueli Mei
- Department of Chemistry and Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, N6A 5B7, Canada.
| | - Elizabeth R Gillies
- Department of Chemistry and Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, N6A 5B7, Canada. .,Department of Chemical and Biochemical Engineering and School of Biomedical Engineering, The University of Western Ontario, London, N6A 5B7, Canada
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Xu M, Yim W, Zhou J, Zhou J, Jin Z, Moore C, Borum R, Jorns A, Jokerst JV. The Application of Organic Nanomaterials for Bioimaging, Drug Delivery, and Therapy: Spanning Various Domains. IEEE NANOTECHNOLOGY MAGAZINE 2021. [DOI: 10.1109/mnano.2021.3081758] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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15
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Bio-nanocomposite Polymer Hydrogels Containing Nanoparticles for Drug Delivery: a Review. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2021. [DOI: 10.1007/s40883-021-00207-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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16
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Yue S, He H, Li B, Hou T. Hydrogel as a Biomaterial for Bone Tissue Engineering: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1511. [PMID: 32752105 PMCID: PMC7466535 DOI: 10.3390/nano10081511] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/22/2020] [Accepted: 07/29/2020] [Indexed: 02/07/2023]
Abstract
Severe bone damage from diseases, including extensive trauma, fractures, and bone tumors, cannot self-heal, while traditional surgical treatment may bring side effects such as infection, inflammation, and pain. As a new biomaterial with controllable mechanical properties and biocompatibility, hydrogel is widely used in bone tissue engineering (BTE) as a scaffold for growth factor transport and cell adhesion. In order to make hydrogel more suitable for the local treatment of bone diseases, hydrogel preparation methods should be combined with synthetic materials with excellent properties and advanced technologies in different fields to better control drug release in time and orientation. It is necessary to establish a complete method to evaluate the hydrogel's properties and biocompatibility with the human body. Moreover, establishment of standard animal models of bone defects helps in studying the therapeutic effect of hydrogels on bone repair, as well as to evaluate the safety and suitability of hydrogels. Thus, this review aims to systematically summarize current studies of hydrogels in BTE, including the mechanisms for promoting bone synthesis, design, and preparation; characterization and evaluation methods; as well as to explore future applications of hydrogels in BTE.
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Affiliation(s)
- Shuai Yue
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, Wuhan 43000, China
| | - Hui He
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, Wuhan 43000, China
| | - Bin Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, Wuhan 43000, China
| | - Tao Hou
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, Wuhan 43000, China
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