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Shajari G, Erfan-Niya H, Fathi M, Amiryaghoubi N. In situ forming hydrogels based on modified gellan gum/chitosan for ocular drug delivery of timolol maleate. Int J Biol Macromol 2024; 278:135071. [PMID: 39187113 DOI: 10.1016/j.ijbiomac.2024.135071] [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: 09/13/2023] [Revised: 08/15/2024] [Accepted: 08/24/2024] [Indexed: 08/28/2024]
Abstract
In situ forming hydrogels are suitable candidates for increasing drug residence time in ocular drug delivery. In this study, gellan gum (GG) was oxidized to form aldehyde groups and in situ gelling hydrogels were synthesized based on a Schiff-base reaction between oxidized GG (OGG) and chitosan (CS) in the presence of β-glycerophosphate. The effect of OGG and CS concentration on the physical and chemical properties of the resulting hydrogels was investigated. The FT-IR spectroscopy confirmed the chemical modification of OGG as well as the functional groups of the prepared hydrogels. The scanning electron microscope (SEM) revealed the highly porous structure of hydrogels. The obtained hydrogels indicated a high swelling degree and degradability. Also, the rheological studies demonstrated self-healing behavior, shear thinning, thixotropy, and mucoadhesion properties for the developed hydrogels. The results of in vitro and ex vivo studies showed that the timolol-loaded hydrogel with a higher amount of OGG has a higher release rate. Moreover, the MTT cytotoxicity test on bone marrow mesenchymal stem cells (BMSCs) confirmed that developed hydrogels are not toxic. The obtained results revealed that the developed hydrogels can be a desirable choice for the ocular drug delivery of timolol in the treatment of glaucoma.
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Affiliation(s)
- Golnaz Shajari
- Faculty of Chemical and Petroleum Engineering, University of Tabriz, 51666-16471 Tabriz, Iran
| | - Hamid Erfan-Niya
- Faculty of Chemical and Petroleum Engineering, University of Tabriz, 51666-16471 Tabriz, Iran.
| | - Marziyeh Fathi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Nazanin Amiryaghoubi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
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2
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G Popova P, Chen SP, Liao S, Sadarangani M, Blakney AK. Clinical perspective on topical vaccination strategies. Adv Drug Deliv Rev 2024; 208:115292. [PMID: 38522725 DOI: 10.1016/j.addr.2024.115292] [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: 11/14/2023] [Revised: 03/01/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024]
Abstract
Vaccination is one of the most successful measures in modern medicine to combat diseases, especially infectious diseases, and saves millions of lives every year. Vaccine design and development remains critical and involves many aspects, including the choice of platform, antigen, adjuvant, and route of administration. Topical vaccination, defined herein as the introduction of a vaccine to any of the three layers of the human skin, has attracted interest in recent years as an alternative vaccination approach to the conventional intramuscular administration because of its potential to be needle-free and induce a superior immune response against pathogens. In this review, we describe recent progress in developing topical vaccines, highlight progress in the development of delivery technologies for topical vaccines, discuss potential factors that might impact the topical vaccine efficacy, and provide an overview of the current clinical landscape of topical vaccines.
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Affiliation(s)
- Petya G Popova
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, British Columbia V6T 2B9, Canada; Michael Smith Laboratories, University of British Columbia, 2185 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
| | - Sunny P Chen
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, British Columbia V6T 2B9, Canada; Michael Smith Laboratories, University of British Columbia, 2185 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
| | - Suiyang Liao
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, British Columbia V6T 2B9, Canada; Michael Smith Laboratories, University of British Columbia, 2185 East Mall, Vancouver, British Columbia V6T 1Z4, Canada; Life Science Institute, University of British Columbia, 2350 Health Sciences Mall, Vancouver, British Columbia V6T 1Z3, Canada
| | - Manish Sadarangani
- Vaccine Evaluation Center, BC Children's Hospital Research Institute, 950 West 28th Ave, Vancouver, British Columbia V5Z 4H4, Canada; Department of Pediatrics, University of British Columbia, 4480 Oak St, Vancouver, BC V6H 0B3, Canada
| | - Anna K Blakney
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, British Columbia V6T 2B9, Canada; Michael Smith Laboratories, University of British Columbia, 2185 East Mall, Vancouver, British Columbia V6T 1Z4, Canada.
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3
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Yilma AN, Sahu R, Subbarayan P, Villinger F, Coats MT, Singh SR, Dennis VA. PLGA-Chitosan Encapsulated IL-10 Nanoparticles Modulate Chlamydia Inflammation in Mice. Int J Nanomedicine 2024; 19:1287-1301. [PMID: 38348174 PMCID: PMC10860865 DOI: 10.2147/ijn.s432970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 12/12/2023] [Indexed: 02/15/2024] Open
Abstract
Introduction Interleukin-10 (IL-10) is a key anti-inflammatory mediator in protecting host from over-exuberant responses to pathogens and play important roles in wound healing, autoimmunity, cancer, and homeostasis. However, its application as a therapeutic agent for biomedical applications has been limited due to its short biological half-life. Therefore, it is important to prolong the half-life of IL-10 to replace the current therapeutic application, which relies on administering large and repeated dosages. Therefore, not a cost-effective approach. Thus, studies that aim to address this type of challenges are always in need. Methods Recombinant IL-10 was encapsulated in biodegradable nanoparticles (Poly-(Lactic-co-Glycolic Acid) and Chitosan)) by the double emulsion method and then characterized for size, surface charge, thermal stability, cytotoxicity, in vitro release, UV-visible spectroscopy, and Fourier Transform-Infrared Spectroscopy as well as evaluated for its anti-inflammatory effects. Bioactivity of encapsulated IL-10 was evaluated in vitro using J774A.1 macrophage cell-line and in vivo using BALB/c mice. Inflammatory cytokines (IL-6 and TNF-α) were quantified from culture supernatants using specific enzyme-linked immunosorbent assay (ELISA), and significance was analyzed using ANOVA. Results We obtained a high 96% encapsulation efficiency with smooth encapsulated IL-10 nanoparticles of ~100-150 nm size and release from nanoparticles as measurable to 22 days. Our result demonstrated that encapsulated IL-10 was biocompatible and functional by reducing the inflammatory responses induced by LPS in macrophages. Of significance, we also proved the functionality of encapsulated IL-10 by its capacity to reduce inflammation in BALB/c mice as provoked by Chlamydia trachomatis, an inflammatory sexually transmitted infectious bacterium. Discussion Collectively, our results show the successful IL-10 encapsulation, slow release to prolong its biological half-life and reduce inflammatory cytokines IL-6 and TNF production in vitro and in mice. Our results serve as proof of concept to further explore the therapeutic prospective of encapsulated IL-10 for biomedical applications, including inflammatory diseases.
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Affiliation(s)
- Abebayehu N Yilma
- Center for NanoBiotechnology Research (CNBR), Alabama State University, Montgomery, AL, USA
- Department of Public Health Sciences, Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Rajnish Sahu
- Center for NanoBiotechnology Research (CNBR), Alabama State University, Montgomery, AL, USA
| | - Praseetha Subbarayan
- Center for NanoBiotechnology Research (CNBR), Alabama State University, Montgomery, AL, USA
| | - Francois Villinger
- Department of Biology, University of Louisiana at Lafayette, New Iberia, LA, USA
| | - Mamie T Coats
- Department of Clinical and Diagnostics Sciences, School of Health Professionals, The University at Alabama at Birmingham (UAB), Birmingham, AL, USA
| | - Shree R Singh
- Center for NanoBiotechnology Research (CNBR), Alabama State University, Montgomery, AL, USA
| | - Vida A Dennis
- Center for NanoBiotechnology Research (CNBR), Alabama State University, Montgomery, AL, USA
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Akshaya S, Nathanael AJ. A Review on Hydrophobically Associated Alginates: Approaches and Applications. ACS OMEGA 2024; 9:4246-4262. [PMID: 38313527 PMCID: PMC10831841 DOI: 10.1021/acsomega.3c08619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 02/06/2024]
Abstract
Alginates are linear anionic polysaccharides, which are well-known for their biocompatible, nontoxic, and biodegradable nature. The polymer consists of alternating units of β-(1 → 4)-linked D-mannuronic acid (M) and α-(1 → 4)-linked L-guluronic acid (G) that have hydroxyl and carboxyl groups as the main functional groups. As a large number of free carboxyl and hydroxyl groups are present in the polymeric chain, the polymer is predominantly hydrophilic. The food and pharmaceutical industries have been the most extensive utilizers of alginates to produce gelling and thickening agents. However, by imparting hydrophobicity to alginates, the range of applications can be widened. Although there are reviews on alginate and its chemical modifications, reviews focusing on hydrophobically associated alginates have not been presented. The commonly used chemical modifications to incorporate hydrophobicity include esterification, Ugi reaction, reductive amination, and graft copolymerization. The hydrophobically modified alginates play an important role in delivery of hydrophobic drugs and pesticides as the modification increases the affinity toward hydrophobic components and helps in their sustained release. Due to their nontoxic and edible nature, they find use in the food industry as emulsion stabilizer to stabilize oil-in-water emulsions and to improve creaming ability. Further, alginate-based materials such as membranes, aerogels, and films are hydrophobically modified to improve their functionality and applicability to water treatment and food packaging. This Review aims to highlight the important chemical modifications and methods that are done to impart hydrophobicity to alginate, and the applications of hydrophobically modified alginates in different sectors ranging from drug delivery to food packaging are discussed.
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Affiliation(s)
- Shenbagaraman Akshaya
- Centre
for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
- School
of Advanced Sciences (SAS), Vellore Institute
of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Arputharaj Joseph Nathanael
- Centre
for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
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Zhao T, Li X, Li H, Deng H, Li J, Yang Z, He S, Jiang S, Sui X, Guo Q, Liu S. Advancing drug delivery to articular cartilage: From single to multiple strategies. Acta Pharm Sin B 2023; 13:4127-4148. [PMID: 37799383 PMCID: PMC10547919 DOI: 10.1016/j.apsb.2022.11.021] [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: 08/02/2022] [Revised: 10/09/2022] [Accepted: 10/28/2022] [Indexed: 11/27/2022] Open
Abstract
Articular cartilage (AC) injuries often lead to cartilage degeneration and may ultimately result in osteoarthritis (OA) due to the limited self-repair ability. To date, numerous intra-articular delivery systems carrying various therapeutic agents have been developed to improve therapeutic localization and retention, optimize controlled drug release profiles and target different pathological processes. Due to the complex and multifactorial characteristics of cartilage injury pathology and heterogeneity of the cartilage structure deposited within a dense matrix, delivery systems loaded with a single therapeutic agent are hindered from reaching multiple targets in a spatiotemporal matched manner and thus fail to mimic the natural processes of biosynthesis, compromising the goal of full cartilage regeneration. Emerging evidence highlights the importance of sequential delivery strategies targeting multiple pathological processes. In this review, we first summarize the current status and progress achieved in single-drug delivery strategies for the treatment of AC diseases. Subsequently, we focus mainly on advances in multiple drug delivery applications, including sequential release formulations targeting various pathological processes, synergistic targeting of the same pathological process, the spatial distribution in multiple tissues, and heterogeneous regeneration. We hope that this review will inspire the rational design of intra-articular drug delivery systems (DDSs) in the future.
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Affiliation(s)
- Tianyuan Zhao
- Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital; Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing 100853, China
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Xu Li
- Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, 999077, Hong Kong, China
| | - Hao Li
- Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital; Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing 100853, China
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Haoyuan Deng
- Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital; Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing 100853, China
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Jianwei Li
- Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital; Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing 100853, China
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Zhen Yang
- Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital; Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing 100853, China
- School of Medicine, Nankai University, Tianjin 300071, China
- Arthritis Clinic & Research Center, Peking University People's Hospital, Peking University, Beijing 100044, China
| | - Songlin He
- Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital; Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing 100853, China
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Shuangpeng Jiang
- Department of Joint Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - Xiang Sui
- Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital; Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing 100853, China
| | - Quanyi Guo
- Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital; Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing 100853, China
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Shuyun Liu
- Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital; Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing 100853, China
- School of Medicine, Nankai University, Tianjin 300071, China
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6
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Shi M, McHugh KJ. Strategies for overcoming protein and peptide instability in biodegradable drug delivery systems. Adv Drug Deliv Rev 2023; 199:114904. [PMID: 37263542 PMCID: PMC10526705 DOI: 10.1016/j.addr.2023.114904] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/18/2023] [Accepted: 05/24/2023] [Indexed: 06/03/2023]
Abstract
The global pharmaceutical market has recently shifted its focus from small molecule drugs to peptide, protein, and nucleic acid drugs, which now comprise a majority of the top-selling pharmaceutical products on the market. Although these biologics often offer improved drug specificity, new mechanisms of action, and/or enhanced efficacy, they also present new challenges, including an increased potential for degradation and a need for frequent administration via more invasive administration routes, which can limit patient access, patient adherence, and ultimately the clinical impact of these drugs. Controlled-release systems have the potential to mitigate these challenges by offering superior control over in vivo drug levels, localizing these drugs to tissues of interest (e.g., tumors), and reducing administration frequency. Unfortunately, adapting controlled-release devices to release biologics has proven difficult due to the poor stability of biologics. In this review, we summarize the current state of controlled-release peptides and proteins, discuss existing techniques used to stabilize these drugs through encapsulation, storage, and in vivo release, and provide perspective on the most promising opportunities for the clinical translation of controlled-release peptides and proteins.
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Affiliation(s)
- Miusi Shi
- Department of Bioengineering, Rice University, Houston, TX 77030, USA; The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine, Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, PR China
| | - Kevin J McHugh
- Department of Bioengineering, Rice University, Houston, TX 77030, USA; Department of Chemistry, Rice University, Houston, TX 77030, USA.
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Bushra R, Ahmad M, Seidi F, Qurtulen, Song J, Jin Y, Xiao H. Polysaccharide-based nanoassemblies: From synthesis methodologies and industrial applications to future prospects. Adv Colloid Interface Sci 2023; 318:102953. [PMID: 37399637 DOI: 10.1016/j.cis.2023.102953] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 05/23/2023] [Accepted: 06/19/2023] [Indexed: 07/05/2023]
Abstract
Polysaccharides, due to their remarkable features, have gained significant prominence in the sustainable production of nanoparticles (NPs). High market demand and minimal production cost, compared to the chemically synthesised NPs, demonstrate a drive towards polysaccharide-based nanoparticles (PSNPs) benign to environment. Various approaches are used for the synthesis of PSNPs including cross-linking, polyelectrolyte complexation, and self-assembly. PSNPs have the potential to replace a wide diversity of chemical-based agents within the food, health, medical and pharmacy sectors. Nevertheless, the considerable challenges associated with optimising the characteristics of PSNPs to meet specific targeting applications are of utmost importance. This review provides a detailed compilation of recent accomplishments in the synthesis of PSNPs, the fundamental principles and critical factors that govern their rational fabrication, as well as various characterisation techniques. Noteworthy, the multiple use of PSNPs in different disciplines such as biomedical, cosmetics agrochemicals, energy storage, water detoxification, and food-related realms, is accounted in detail. Insights into the toxicological impacts of the PSNPs and their possible risks to human health are addressed, and efforts made in terms of PSNPs development and optimising strategies that allow for enhanced delivery are highlighted. Finally, limitations, potential drawbacks, market diffusion, economic viability and future possibilities for PSNPs to achieve widespread commercial use are also discussed.
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Affiliation(s)
- Rani Bushra
- International Innovation Center for Forest Chemicals and Materials and Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Joint International Research Lab of Lignocellulosic Functional Materials and Provincial Key Lab of Pulp and Paper Sci & Tech, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Mehraj Ahmad
- International Innovation Center for Forest Chemicals and Materials and Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; College of Light Industry and Food, Department of Food Science and Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Joint International Research Lab of Lignocellulosic Functional Materials and Provincial Key Lab of Pulp and Paper Sci & Tech, Nanjing Forestry University, Nanjing 210037, Jiangsu, China.
| | - Farzad Seidi
- International Innovation Center for Forest Chemicals and Materials and Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Joint International Research Lab of Lignocellulosic Functional Materials and Provincial Key Lab of Pulp and Paper Sci & Tech, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Qurtulen
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India
| | - Junlong Song
- International Innovation Center for Forest Chemicals and Materials and Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Joint International Research Lab of Lignocellulosic Functional Materials and Provincial Key Lab of Pulp and Paper Sci & Tech, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Yongcan Jin
- International Innovation Center for Forest Chemicals and Materials and Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Joint International Research Lab of Lignocellulosic Functional Materials and Provincial Key Lab of Pulp and Paper Sci & Tech, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
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Milivojević M, Popović A, Pajić-Lijaković I, Šoštarić I, Kolašinac S, Stevanović ZD. Alginate Gel-Based Carriers for Encapsulation of Carotenoids: On Challenges and Applications. Gels 2023; 9:620. [PMID: 37623075 PMCID: PMC10454207 DOI: 10.3390/gels9080620] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/22/2023] [Accepted: 07/25/2023] [Indexed: 08/26/2023] Open
Abstract
Sodium alginate is one of the most interesting and the most investigated and applied biopolymers due to its advantageous properties. Among them, easy, simple, mild, rapid, non-toxic gelation by divalent cations is the most important. In addition, it is abundant, low-cost, eco-friendly, bio-compatible, bio-adhesive, biodegradable, stable, etc. All those properties were systematically considered within this review. Carotenoids are functional components in the human diet with plenty of health benefits. However, their sensitivity to environmental and process stresses, chemical instability, easy oxidation, low water solubility, and bioavailability limit their food and pharmaceutical applications. Encapsulation may help in overcoming these limitations and within this review, the role of alginate-based encapsulation systems in improving the stability and bioavailability of carotenoids is explored. It may be concluded that all alginate-based systems increase carotenoid stability, but only those of micro- and nano-size, as well as emulsion-based, may improve their low bioaccessibility. In addition, the incorporation of other biopolymers may further improve encapsulation system properties. Furthermore, the main techniques for evaluating the encapsulation are briefly considered. This review critically and profoundly explains the role of alginates in improving the encapsulation process of carotenoids, suggesting the best alternatives for those systems. Moreover, it provides a comprehensive cover of recent advances in this field.
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Affiliation(s)
- Milan Milivojević
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Aleksandra Popović
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Ivana Pajić-Lijaković
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Ivan Šoštarić
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia
| | - Stefan Kolašinac
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia
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9
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Li Y, Xu Z, Wang J, Pei X, Chen J, Wan Q. Alginate-based biomaterial-mediated regulation of macrophages in bone tissue engineering. Int J Biol Macromol 2023; 230:123246. [PMID: 36649862 DOI: 10.1016/j.ijbiomac.2023.123246] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 12/06/2022] [Accepted: 01/09/2023] [Indexed: 01/15/2023]
Abstract
Many studies in the bone tissue engineering field have focused on the interactions between materials and bone marrow stem cells. With the development of osteoimmunology, the immune cells' essential role in biomaterial-mediated osteogenesis has increasingly been recognized. As a promising therapeutic candidate for bone defects due to their prominent biocompatibility, tuneability, and versatility, it is necessary to develop alginate-based biomaterials that can regulate immune cells, especially macrophages. Moreover, modified alginate-based biomaterials may facilitate better regulation of macrophage phenotypes by the newly endowed physicochemical properties, including stiffness, porosity, hydrophilicity, and electrical properties. This review summarizes the role of macrophages in bone regeneration and the recent research progress related to the effects of alginate-based biomaterials on macrophages applied in bone tissue engineering. This review also emphasizes the strategies adopted by material design to regulate macrophage phenotypes, the corresponding macrophage responses, and their contribution to osteogenesis.
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Affiliation(s)
- Yuanyuan Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; West China School of Stomatology, Sichuan University, Chengdu 610041, China
| | - Zhengyi Xu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; West China School of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jian Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; West China School of Stomatology, Sichuan University, Chengdu 610041, China
| | - Xibo Pei
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; West China School of Stomatology, Sichuan University, Chengdu 610041, China
| | - Junyu Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; West China School of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Qianbing Wan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; West China School of Stomatology, Sichuan University, Chengdu 610041, China.
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10
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Neves MI, Bidarra SJ, Magalhães MV, Torres AL, Moroni L, Barrias CC. Microstructured click hydrogels for cell contact guidance in 3D. Mater Today Bio 2023; 19:100604. [PMID: 36969695 PMCID: PMC10034521 DOI: 10.1016/j.mtbio.2023.100604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 03/04/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
The topography of the extracellular matrix (ECM) is a major biophysical regulator of cell behavior. While this has inspired the design of cell-instructive biomaterials, the ability to present topographic cues to cells in a true 3D setting remains challenging, particularly in ECM-like hydrogels made from a single polymer. Herein, we report the design of microstructured alginate hydrogels for injectable cell delivery and show their ability to orchestrate morphogenesis via cellular contact guidance in 3D. Alginate was grafted with hydrophobic cyclooctyne groups (ALG-K), yielding amphiphilic derivatives with self-associative potential and ionic crosslinking ability. This allowed the formation of microstructured ALG-KH hydrogels, triggered by the spontaneous segregation between hydrophobic/hydrophilic regions of the polymer that generated 3D networks with stiffer microdomains within a softer lattice. The azide-reactivity of cyclooctynes also allowed ALG-K functionalization with bioactive peptides via cytocompatible strain-promoted azide-alkyne cycloaddition (SPAAC). Hydrogel-embedded mesenchymal stem cells (MSCs) were able to integrate spatial information and to mechano-sense the 3D topography, which regulated cell shape and stress fiber organization. MSCs clusters initially formed on microstructured regions could then act as seeds for neo-tissue formation, inducing cells to produce their own ECM and self-organize into multicellular structures throughout the hydrogel. By combining 3D topography, click functionalization, and injectability, using a single polymer, ALG-K hydrogels provide a unique cell delivery platform for tissue regeneration.
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Advanced Formulations/Drug Delivery Systems for Subcutaneous Delivery of Protein-Based Biotherapeutics. J Pharm Sci 2022; 111:2968-2982. [PMID: 36058255 DOI: 10.1016/j.xphs.2022.08.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/29/2022] [Accepted: 08/29/2022] [Indexed: 12/14/2022]
Abstract
Multiple advanced formulations and drug delivery systems (DDSs) have been developed to deliver protein-based biotherapeutics via the subcutaneous (SC) route. These formulations/DDSs include high-concentration solution, co-formulation of two or more proteins, large volume injection, protein cluster/complex, suspension, nanoparticle, microparticle, and hydrogel. These advanced systems provide clinical benefits related to efficacy and safety, but meanwhile, have more complicated formulations and manufacturing processes compared to conventional solution formulations. To develop a fit-for-purpose formulation/DDS for SC delivery, scientists need to consider multiple factors, such as the primary indication, targeted site, immunogenicity, compatibility, biopharmaceutics, patient compliance, etc. Next, they need to develop appropriate formulation (s) and manufacturing processes using the QbD principle and have a control strategy. This paper aims to provide a comprehensive review of advanced formulations/DDSs recently developed for SC delivery of proteins, as well as some knowledge gaps and potential strategies to narrow them through future research.
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12
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Taaca KLM, Prieto EI, Vasquez MR. Current Trends in Biomedical Hydrogels: From Traditional Crosslinking to Plasma-Assisted Synthesis. Polymers (Basel) 2022; 14:2560. [PMID: 35808607 PMCID: PMC9268762 DOI: 10.3390/polym14132560] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 02/06/2023] Open
Abstract
The use of materials to restore or replace the functions of damaged body parts has been proven historically. Any material can be considered as a biomaterial as long as it performs its biological function and does not cause adverse effects to the host. With the increasing demands for biofunctionality, biomaterials nowadays may not only encompass inertness but also specialized utility towards the target biological application. A hydrogel is a biomaterial with a 3D network made of hydrophilic polymers. It is regarded as one of the earliest biomaterials developed for human use. The preparation of hydrogel is often attributed to the polymerization of monomers or crosslinking of hydrophilic polymers to achieve the desired ability to hold large amounts of aqueous solvents and biological fluids. The generation of hydrogels, however, is shifting towards developing hydrogels through the aid of enabling technologies. This review provides the evolution of hydrogels and the different approaches considered for hydrogel preparation. Further, this review presents the plasma process as an enabling technology for tailoring hydrogel properties. The mechanism of plasma-assisted treatment during hydrogel synthesis and the current use of the plasma-treated hydrogels are also discussed.
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Affiliation(s)
- Kathrina Lois M. Taaca
- Department of Mining, Metallurgical and Materials Engineering, College of Engineering, University of the Philippines Diliman, Quezon City 1101, Philippines
- Materials Science and Engineering Program, College of Science, University of the Philippines Diliman, Quezon City 1101, Philippines
| | - Eloise I. Prieto
- National Institute of Molecular Biology and Biotechnology, College of Science, National Science Complex, University of the Philippines, Diliman, Quezon City 1101, Philippines;
| | - Magdaleno R. Vasquez
- Department of Mining, Metallurgical and Materials Engineering, College of Engineering, University of the Philippines Diliman, Quezon City 1101, Philippines
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13
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Wu Z, Li H, Zhao X, Ye F, Zhao G. Hydrophobically modified polysaccharides and their self-assembled systems: A review on structures and food applications. Carbohydr Polym 2022; 284:119182. [DOI: 10.1016/j.carbpol.2022.119182] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 12/27/2021] [Accepted: 01/21/2022] [Indexed: 01/05/2023]
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14
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Self-aggregate performance of hexyl alginate ester derivative synthesized via SN2 reaction for controlled release of λ-cyhalothrin. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04103-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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15
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16
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Firdaus FZ, Skwarczynski M, Toth I. Developments in Vaccine Adjuvants. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2022; 2412:145-178. [PMID: 34918245 DOI: 10.1007/978-1-0716-1892-9_8] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Vaccines, including subunit, recombinant, and conjugate vaccines, require the use of an immunostimulator/adjuvant for maximum efficacy. Adjuvants not only enhance the strength and longevity of immune responses but may also influence the type of response. In this chapter, we review the adjuvants that are available for use in human vaccines, such as alum, MF59, AS03, and AS01. We extensively discuss their composition, characteristics, mechanism of action, and effects on the immune system. Additionally, we summarize recent trends in adjuvant discovery, providing a brief overview of saponins, TLRs agonists, polysaccharides, nanoparticles, cytokines, and mucosal adjuvants.
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Affiliation(s)
- Farrhana Ziana Firdaus
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia. .,Institute of Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia. .,School of Pharmacy, The University of Queensland, Woolloongabba, QLD, Australia.
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17
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Chen G, Svirskis D, Lu W, Ying M, Li H, Liu M, Wen J. N-trimethyl chitosan coated nano-complexes enhance the oral bioavailability and chemotherapeutic effects of gemcitabine. Carbohydr Polym 2021; 273:118592. [PMID: 34560993 DOI: 10.1016/j.carbpol.2021.118592] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/04/2021] [Accepted: 08/18/2021] [Indexed: 11/25/2022]
Abstract
N-trimethyl chitosan (TMC) is a multifunctional polymer that can be used in various nanoparticle forms in the pharmaceutical, nutraceutical and biomedical fields. In this study, TMC was used as a mucoadhesive adjuvant to enhance the oral bioavailability and hence antitumour effects of gemcitabine formulated into nanocomplexes composed of poly(lactic-co-glycolic acid) nanoparticles (PLGA NPs) conjugated with d-α-tocopheryl polyethylene glycol 1000 succinate (TPGS). A central composite design was applied to achieve the optimal formulation. Cellular uptake and drug transportation studies revealed the nanocomplexes permeate over the intestinal cells via adsorptive-mediated and caveolae-mediated endocytosis. Pharmacokinetic studies demonstrated the oral drug bioavailability of the nanocomplexes was increased 5.1-fold compared with drug solution. In pharmacodynamic studies, the formulation reduced tumour size 3.1-fold compared with the drug solution. The data demonstrates that TMC modified nanocomplexes can enhance gemcitabine oral bioavailability and promote the anticancer efficacy.
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Affiliation(s)
- Guanyu Chen
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China; School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Darren Svirskis
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Weiyue Lu
- Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai, China
| | - Man Ying
- Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai, China
| | - Hongyu Li
- Department of Pharmaceutical Science, University of Arkansas for Medical Sciences, AR, USA
| | - Min Liu
- Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai, China
| | - Jingyuan Wen
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand.
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18
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Peters JT, Wechsler ME, Peppas NA. Advanced biomedical hydrogels: molecular architecture and its impact on medical applications. Regen Biomater 2021; 8:rbab060. [PMID: 34925879 PMCID: PMC8678442 DOI: 10.1093/rb/rbab060] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/22/2021] [Accepted: 10/18/2021] [Indexed: 12/13/2022] Open
Abstract
Hydrogels are cross-linked polymeric networks swollen in water, physiological aqueous solutions or biological fluids. They are synthesized by a wide range of polymerization methods that allow for the introduction of linear and branched units with specific molecular characteristics. In addition, they can be tuned to exhibit desirable chemical characteristics including hydrophilicity or hydrophobicity. The synthesized hydrogels can be anionic, cationic, or amphiphilic and can contain multifunctional cross-links, junctions or tie points. Beyond these characteristics, hydrogels exhibit compatibility with biological systems, and can be synthesized to render systems that swell or collapse in response to external stimuli. This versatility and compatibility have led to better understanding of how the hydrogel's molecular architecture will affect their physicochemical, mechanical and biological properties. We present a critical summary of the main methods to synthesize hydrogels, which define their architecture, and advanced structural characteristics for macromolecular/biological applications.
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Affiliation(s)
- Jonathan T Peters
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, 200 E. Dean Keeton, Austin, TX 78712, USA
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, 107 W. Dean Keeton, Austin, TX 78712, USA
| | - Marissa E Wechsler
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
| | - Nicholas A Peppas
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, 200 E. Dean Keeton, Austin, TX 78712, USA
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, 107 W. Dean Keeton, Austin, TX 78712, USA
- Department of Biomedical Engineering, The University of Texas at Austin, 107 W. Dean Keeton, Austin, TX 78712, USA
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, 107 W. Dean Keeton, Austin, TX 78712, USA
- Department of Surgery and Perioperative Care, and Department of Pediatrics, Dell Medical School, The University of Texas at Austin, 1601 Trinity St., Bldg. B, Austin, TX 78712, USA
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19
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Rosiak P, Latanska I, Paul P, Sujka W, Kolesinska B. Modification of Alginates to Modulate Their Physic-Chemical Properties and Obtain Biomaterials with Different Functional Properties. Molecules 2021; 26:7264. [PMID: 34885846 PMCID: PMC8659150 DOI: 10.3390/molecules26237264] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 11/27/2021] [Accepted: 11/28/2021] [Indexed: 01/02/2023] Open
Abstract
Modified alginates have a wide range of applications, including in the manufacture of dressings and scaffolds used for regenerative medicine, in systems for selective drug delivery, and as hydrogel materials. This literature review discusses the methods used to modify alginates and obtain materials with new or improved functional properties. It discusses the diverse biological and functional activity of alginates. It presents methods of modification that utilize both natural and synthetic peptides, and describes their influence on the biological properties of the alginates. The success of functionalization depends on the reaction conditions being sufficient to guarantee the desired transformations and provide modified alginates with new desirable properties, but mild enough to prevent degradation of the alginates. This review is a literature description of efficient methods of alginate functionalization using biologically active ligands. Particular attention was paid to methods of alginate functionalization with peptides, because the combination of the properties of alginates and peptides leads to the obtaining of conjugates with properties resulting from both components as well as a completely new, different functionality.
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Affiliation(s)
- Piotr Rosiak
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (P.R.); (P.P.)
| | - Ilona Latanska
- Tricomed S.A., Swietojanska 5/9, 93-493 Lodz, Poland; (I.L.); (W.S.)
| | - Paulina Paul
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (P.R.); (P.P.)
| | - Witold Sujka
- Tricomed S.A., Swietojanska 5/9, 93-493 Lodz, Poland; (I.L.); (W.S.)
| | - Beata Kolesinska
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (P.R.); (P.P.)
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20
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Chen X, Zhu Q, Liu C, Li D, Yan H, Lin Q. Esterification of Alginate with Alkyl Bromides of Different Carbon Chain Lengths via the Bimolecular Nucleophilic Substitution Reaction: Synthesis, Characterization, and Controlled Release Performance. Polymers (Basel) 2021; 13:3351. [PMID: 34641167 PMCID: PMC8512272 DOI: 10.3390/polym13193351] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 09/25/2021] [Accepted: 09/28/2021] [Indexed: 12/27/2022] Open
Abstract
To extend the alginate applicability for the sustained release of hydrophobic medicine in drug delivery systems, the alkyl alginate ester derivative (AAD), including hexyl alginate ester derivative (HAD), octyl alginate ester derivative (OAD), decyl alginate ester derivative (DAD), and lauryl alginate ester derivative (LAD), were synthesized using the alkyl bromides with different lengths of carbon chain as the hydrophobic modifiers under homogeneous conditions via the bimolecular nucleophilic substitution (SN2) reaction. Experimental results revealed that the successful grafting of the hydrophobic alkyl groups onto the alginate molecular backbone via the SN2 reaction had weakened and destroyed the intramolecular hydrogen bonds, thus enhancing the molecular flexibility of the alginate, which endowed the AAD with a good amphiphilic property and a critical aggregation concentration (CAC) of 0.48~0.0068 g/L. Therefore, the resultant AAD could form stable spherical self-aggregated micelles with the average hydrodynamic diameter of 285.3~180.5 nm and zeta potential at approximately -44.8~-34.4 mV due to the intra or intermolecular hydrophobic associations. With the increase of the carbon chain length of the hydrophobic side groups, the AAD was more prone to self-aggregation, and therefore was able to achieve the loading and sustained release of hydrophobic ibuprofen. Additionally, the swelling and degradation of AAD microcapsules and the diffusion of the loaded drug jointly controlled the release rate of ibuprofen. Meanwhile, the AAD also displayed low cytotoxicity to the murine macrophage RAW264.7 cells. Thanks to the good amphiphilic property, colloidal interface activity, hydrophobic drug-loading performance, and cytocompatibility, the synthesized AAD exhibited a great potential for the development of hydrophobic pharmaceutical formulations.
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Affiliation(s)
- Xiuqiong Chen
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (X.C.); (Q.Z.)
- Key Laboratory of Natural Polymer Functional Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (C.L.); (D.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Qingmei Zhu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (X.C.); (Q.Z.)
- Key Laboratory of Natural Polymer Functional Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (C.L.); (D.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Chang Liu
- Key Laboratory of Natural Polymer Functional Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (C.L.); (D.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Dongze Li
- Key Laboratory of Natural Polymer Functional Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (C.L.); (D.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Huiqiong Yan
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (X.C.); (Q.Z.)
- Key Laboratory of Natural Polymer Functional Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (C.L.); (D.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Qiang Lin
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (X.C.); (Q.Z.)
- Key Laboratory of Natural Polymer Functional Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (C.L.); (D.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
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21
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Khalid A, Asim-Ur-Rehman, Ahmed N, Chaudhery I, Al-Jafary MA, Al-Suhaimi EA, Tarhini M, Lebaz N, Elaissari A. Polysaccharide Chemistry in Drug Delivery, Endocrinology, and Vaccines. Chemistry 2021; 27:8437-8451. [PMID: 33856737 DOI: 10.1002/chem.202100204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Indexed: 12/26/2022]
Abstract
Polysaccharides, due to their outstanding properties, have attracted the attention of researchers, working in the biomedical field and especially of those working in drug delivery. Modified/functionalized polysaccharides further increase the importance for various applications. Delivery of therapeutics for diverse ailments in different endocrine glands and hormones safely, is a focal point of researchers working in the field. Among the routes followed, the transdermal route is preferred due to non-exposure of active moieties to the harsh gastric environment and first-pass metabolism. This review starts with the overview of polysaccharides used for the delivery of various therapeutic agents. Advantages of polysaccharides used in the transdermal route are addressed in detail. Types of polysaccharides will be elaborated through examples, and in this context, special emphasis will be on the polysaccharides being used for synthesis of the membranes/films. Techniques employed for their modification to design novel carriers for therapeutics delivery will also be discussed. The review will end with a brief discussion on recent developments and future perspectives for delivery of therapeutic agents, and vaccine development.
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Affiliation(s)
- Aimen Khalid
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan
| | - Asim-Ur-Rehman
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan
| | - Naveed Ahmed
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan
| | - Iqra Chaudhery
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan
| | - Meneerah A Al-Jafary
- Biology Department, College of Science, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, 31441, Dammam, Saudi Arabia
| | - Ebtesam Abdullah Al-Suhaimi
- Biology Department, College of Science, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, 31441, Dammam, Saudi Arabia
| | - Mohamad Tarhini
- Univ Lyon, University Claude Bernard Lyon-1, CNRS, ISA-UMR 5280, 69622, Villeurbanne, France
| | - Noureddine Lebaz
- Univ Lyon, University Claude Bernard Lyon-1, CNRS, LAGEPP-UMR 5007, 69100, Villeurbanne, France
| | - Abdelhamid Elaissari
- Univ Lyon, University Claude Bernard Lyon-1, CNRS, ISA-UMR 5280, 69622, Villeurbanne, France
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22
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Smith AM, Senior JJ. Alginate Hydrogels with Tuneable Properties. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2021; 178:37-61. [PMID: 33547500 DOI: 10.1007/10_2020_161] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Alginate is a material that has many biomedical applications due to its low toxicity and a variety of favourable physical properties. In particular, the ease in which hydrogels are formed from alginate and the variety of mechanical behaviours that can be imparted on the hydrogels, by understanding alginate chemistry and intuitive design, has made alginate the most widely investigated polysaccharide used for tissue engineering. This chapter provides an overview of alginate, from how the source and natural variations in composition can influence mechanical properties of alginate hydrogels, through to some innovative techniques used to modify and functionalise the hydrogels designed specifically for cell-based therapies. The main focus is on how these strategies of understanding and controlling the chemistry of alginates have resulted in the development of hydrogels that can be tuned to deliver the physical behaviours required for successful application. This will also highlight how research on the physicochemical properties has helped alginate evolve from a structural polysaccharide in brown seaweed into a highly tuneable, multifunctional, smart biomaterial, which is likely to find further biomedical applications in the future.
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Affiliation(s)
- Alan M Smith
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Huddersfield, UK.
| | - Jessica J Senior
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Huddersfield, UK
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23
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Plucinski A, Lyu Z, Schmidt BVKJ. Polysaccharide nanoparticles: from fabrication to applications. J Mater Chem B 2021; 9:7030-7062. [DOI: 10.1039/d1tb00628b] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The present review highlights the developments in polysaccharide nanoparticles with a particular focus on applications in biomedicine, cosmetics and food.
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Affiliation(s)
| | - Zan Lyu
- School of Chemistry, University of Glasgow, G12 8QQ Glasgow, UK
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24
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Debele TA, Su WP. Polysaccharide and protein-based functional wound dressing materials and applications. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1809403] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Tilahun Ayane Debele
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, No. 138, Sheng Li Road, Tainan 704, Taiwan
- Department of Medical Biochemistry, College of Medicine and Health Science, University of Gondar, Gondar, Ethiopia
| | - Wen-Pin Su
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, No. 138, Sheng Li Road, Tainan 704, Taiwan
- Departments of Oncology and Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
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25
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Ceylan O, Karakus H, Cicek H. Design and in vitro antibiofilm activity of propolis diffusion-controlled biopolymers. Biotechnol Appl Biochem 2020; 68:789-800. [PMID: 32701174 DOI: 10.1002/bab.1991] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 07/18/2020] [Indexed: 12/31/2022]
Abstract
In this study, a novel pH-sensitive hydrogel beads that is based on gelatin/sodium alginate/chitosan (GEL/SA/CS) loaded with propolis ethanolic extracts (PE) were synthesized. The swelling behavior of GEL/SA/CS hydrogel beads was studied in different pH solutions and compared with unloaded CS (GEL/SA) hydrogel beads. The in vitro release studies have been revealed using four different pH (1.3, 5.0, 6.0, and 6.8), a saliva environment (pH 6.8), a simulated gastric fluid (SGF) (pH 1.3), and a simulated intestinal fluid (SIF) (pH 6.8) to simulate the physiological conditions in gastrointestinal (GI) tract. Propolis-loaded hydrogel beads were found to be stable at pH 1.3, 5.0, 6.0, simulated saliva, SGF, and SIF mediums, whereas the beads lose their stability at pH 6.8 buffer solution. Tested microorganisms displayed greater sensitivity to PE-loaded hydrogel beads compared with pure propolis. Contrary to antimicrobial activity results, antibiofilm activity results of PE-loaded GEL/SA and GEL/SA/CS hydrogel beads were found at low levels. According to the obtained results, the propolis-loaded GEL/SA/CS hydrogel beads synthesized within this study can be used in the treatment of GI tract diseases such as oral mucositis, gastric ulcer, ulcerative colitis, and GI cancer, as controlled releasing carriers of propolis.
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Affiliation(s)
- Ozgur Ceylan
- Department of Food Processing, Mugla Sitki Kocman University, Mugla, Turkey
| | - Hatice Karakus
- Department of Biology, Mugla Sitki Kocman University, Mugla, Turkey
| | - Huseyin Cicek
- Department of Chemistry, Mugla Sitki Kocman University, Mugla, Turkey
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26
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Sanchez-Ballester NM, Bataille B, Benabbas R, Alonso B, Soulairol I. Development of alginate esters as novel multifunctional excipients for direct compression. Carbohydr Polym 2020; 240:116280. [PMID: 32475564 DOI: 10.1016/j.carbpol.2020.116280] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/16/2020] [Accepted: 04/09/2020] [Indexed: 02/07/2023]
Abstract
Methyl ester derivatives of alginic acid have been evaluated as potential multifunctional excipients for pharmaceutical direct compression. The use of alginic acid as an excipient in tablet formulation is limited because of certain drawbacks such as low tablet hardness and poor compressibility. The objective of this work is to improve these properties through esterification of alginic acid, chemical modification commonly used for enhancing the functionality of tableting excipients. It has been observed that the degree of methylation (DM) has a profitable impact in the physico-chemical and mechanical properties of the obtained materials. In general, an increase in the degree of methylation yielded tablets with higher tensile strength and better compressibility. Furthermore, modified alginates exhibited extended disintegration times compared to native alginic acid due to the introduced hydrophobicity. Finally, the functional versatility of the modified alginates as disintegrating and filling/binding agents was tested by formulating them with microcrystalline cellulose and lactose.
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Affiliation(s)
| | - Bernard Bataille
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France
| | - Rihab Benabbas
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France
| | - Bruno Alonso
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France
| | - Ian Soulairol
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France; Department of Pharmacy, Nîmes University Hospital, Nimes, France
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Li X, Liu M, Chen F, Wang Y, Wang M, Chen X, Xiao Y, Zhang X. Design of hydroxyapatite bioceramics with micro-/nano-topographies to regulate the osteogenic activities of bone morphogenetic protein-2 and bone marrow stromal cells. NANOSCALE 2020; 12:7284-7300. [PMID: 32196048 DOI: 10.1039/c9nr10561a] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Biomimicking the nanostructure of natural bone apatite to enhance the bioactivity of hydroxyapatite (HA) biomaterials is an eternal topic in the bone regeneration field. In the present study, we designed four kinds of HA bioceramics with micro- to nanosized grains and investigated the effects of bioceramic topographies on the structures of bone morphogenetic protein-2 (BMP-2) and the effects on the responses of bone marrow stromal cells (BMSCs). Compared to the samples with submicron-scale crystalline particles, HA bioceramics with grain sizes of 104.6 ± 27.8 nm exhibited increased roughness, improved hydrophilicity and enhanced mechanical properties. The synergistic effects of these surface characteristics could well maintain the conformation of BMP-2, facilitate cell adhesion and spreading, and activate the osteogenic differentiation of BMSCs. Furthermore, SBF immersion and in vivo canine intramuscular implantation confirmed that the HA bioceramics with nanotopography also processed excellent bone-like apatite forming ability and outstanding osteoinductivity. In summary, these findings suggest that the nanotopography of HA bioceramics is a critical factor to enhance their bioactivity and osteoinductivity.
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Affiliation(s)
- Xiangfeng Li
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
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Durán E, Churio O, Arias JL, Neira-Carrillo A, Valenzuela C. Preparation and characterization of novel edible matrices based on alginate and whey for oral delivery of iron. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2019.105277] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Kou L, Xiao S, Sun R, Bao S, Yao Q, Chen R. Biomaterial-engineered intra-articular drug delivery systems for osteoarthritis therapy. Drug Deliv 2019; 26:870-885. [PMID: 31524006 PMCID: PMC6758706 DOI: 10.1080/10717544.2019.1660434] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/19/2019] [Accepted: 08/22/2019] [Indexed: 12/14/2022] Open
Abstract
Osteoarthritis (OA) is a progressive and degenerative disease, which is no longer confined to the elderly. So far, current treatments are limited to symptom relief, and no valid OA disease-modifying drugs are available. Additionally, OA relative joint is challenging for drug delivery, since the drugs experience rapid clearance in joint, showing a poor bioavailability. Existing therapeutic drugs, like non-steroidal anti-inflammatory drugs (NSAIDs) and corticosteroids, are not conducive for long-term use due to adverse effects. Though supplementations, including chondroitin sulfate and glucosamine, have shown beneficial effects on joint tissues in OA, their therapeutic use is still debatable. New emerging agents, like Kartogenin (KGN) and Interleukin-1 receptor antagonist (IL-1 ra), without a proper formulation, still will not work. Therefore, it is urgent to establish a suitable and efficient drug delivery system for OA therapy. In this review, we pay attention to various types of drug delivery systems and potential therapeutic drugs that may escalate OA treatments.
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Affiliation(s)
- Longfa Kou
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shuyi Xiao
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Rui Sun
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shihui Bao
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qing Yao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Ruijie Chen
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
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Yang F, He W, Li H, Zhang X, Feng Y. Role of acid treatment combined with the use of urea in forming cellulose hydrogel. Carbohydr Polym 2019; 223:115059. [DOI: 10.1016/j.carbpol.2019.115059] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 06/21/2019] [Accepted: 07/05/2019] [Indexed: 01/06/2023]
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Fabrication of nanobiocatalyst using encapsulated laccase onto chitosan-nanobiochar composite. Int J Biol Macromol 2019; 124:530-536. [DOI: 10.1016/j.ijbiomac.2018.11.234] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 11/26/2018] [Accepted: 11/26/2018] [Indexed: 02/07/2023]
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Severino P, da Silva CF, Andrade LN, de Lima Oliveira D, Campos J, Souto EB. Alginate Nanoparticles for Drug Delivery and Targeting. Curr Pharm Des 2019; 25:1312-1334. [PMID: 31465282 DOI: 10.2174/1381612825666190425163424] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 04/15/2019] [Indexed: 12/31/2022]
Abstract
Nanotechnology refers to the control, manipulation, study and manufacture of structures and devices at the nanometer size range. The small size, customized surface, improved solubility and multi-functionality of nanoparticles will continue to create new biomedical applications, as nanoparticles allow to dominate stability, solubility and bioavailability, as well controlled release of drugs. The type of a nanoparticle, and its related chemical, physical and morphological properties influence its interaction with living cells, as well as determine the route of clearance and possible toxic effects. This field requires cross-disciplinary research and gives opportunities to design and develop multifunctional devices, which allow the diagnosis and treatment of devastating diseases. Over the past few decades, biodegradable polymers have been studied for the fabrication of drug delivery systems. There was extensive development of biodegradable polymeric nanoparticles for drug delivery and tissue engineering, in view of their applications in controlling the release of drugs, stabilizing labile molecules from degradation and site-specific drug targeting. The primary aim is to reduce dosing frequency and prolong the therapeutic outcomes. For this purpose, inert excipients should be selected, being biopolymers, e.g. sodium alginate, commonly used in controlled drug delivery. Nanoparticles composed of alginate (known as anionic polysaccharide widely distributed in the cell walls of brown algae which, when in contact with water, forms a viscous gum) have emerged as one of the most extensively characterized biomaterials used for drug delivery and targeting a set of administration routes. Their advantages include not only the versatile physicochemical properties, which allow chemical modifications for site-specific targeting but also their biocompatibility and biodegradation profiles, as well as mucoadhesiveness. Furthermore, mechanical strength, gelation, and cell affinity can be modulated by combining alginate nanoparticles with other polymers, surface tailoring using specific targeting moieties and by chemical or physical cross-linking. However, for every physicochemical modification in the macromolecule/ nanoparticles, a new toxicological profile may be obtained. In this paper, the different aspects related to the use of alginate nanoparticles for drug delivery and targeting have been revised, as well as how their toxicological profile will determine the therapeutic outcome of the drug delivery system.
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Affiliation(s)
- Patricia Severino
- Universidade Tiradentes (Unit), Av. Murilo Dantas, 300, Farolandia, Aracaju-SE, CEP 49.032-490, Brazil
- Instituto de Tecnologia e Pesquisa, Laboratório de Nanotecnologia e Nanomedicina (LNMed) Av. Murilo Dantas, 300, Aracaju - SE, CEP 49.032-490, Brazil
| | - Classius F da Silva
- Universidade Federal de Sao Paulo, Instituto de Ciências Ambientais, Quimicas e Farmaceuticas, Departamento de Engenharia Quimica, Rua Sao Nicolau, 210, Diadema - SP, CEP 09.913-030, Brazil
| | - Luciana N Andrade
- Universidade Tiradentes (Unit), Av. Murilo Dantas, 300, Farolandia, Aracaju-SE, CEP 49.032-490, Brazil
- Instituto de Tecnologia e Pesquisa, Laboratório de Nanotecnologia e Nanomedicina (LNMed) Av. Murilo Dantas, 300, Aracaju - SE, CEP 49.032-490, Brazil
| | - Daniele de Lima Oliveira
- Universidade Tiradentes (Unit), Av. Murilo Dantas, 300, Farolandia, Aracaju-SE, CEP 49.032-490, Brazil
- Instituto de Tecnologia e Pesquisa, Laboratório de Nanotecnologia e Nanomedicina (LNMed) Av. Murilo Dantas, 300, Aracaju - SE, CEP 49.032-490, Brazil
| | - Joana Campos
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Polo das Ciencias da Saude, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Eliana B Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Polo das Ciencias da Saude, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar 4710-057 Braga, Portugal
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Pereira BHDA, Marques NDN, Lima BLBD, Villetti MA, Balaban RDC. Study of the thermoassociative process in carboxymethylcellulose derivatives. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.10.126] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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35
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Guo Y, Wang T, Zhao S, Qiu H, Han M, Dong Z, Wang X. Effect of alkyl chain on cellular uptake and antitumor activity of hydroxycamptothecin nanoparticles based on amphiphilic linear molecules. Eur J Pharm Sci 2018; 124:266-272. [PMID: 30189259 DOI: 10.1016/j.ejps.2018.08.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 08/18/2018] [Accepted: 08/31/2018] [Indexed: 10/28/2022]
Abstract
Drug-loaded nanoparticles utilizing amphiphilic molecules as nanocarriers were developed broadly for nanoscale drug delivery system. Linear amphiphilic molecule (PEG45C18) based on PEG and alkyl chain was designed and synthesized. To study the influence of alkyl chain on antitumor activity, 10-hydroxycamptothecin (HCPT) was selected as the hydrophobic drug, amphiphilic molecule (PEG45C18) and hydrophilic PEG (PEG45) were applied as nanocarriers to form HCPT-loaded nanoparticles (HCPT/PEG45C18 NPs and HCPT/PEG45 NPs). These two nanoparticles presented high drug-loading content, stability, but different release manner and antitumor efficacy. The HCPT/PEG45C18 NPs existed slower release manner but higher antitumor activity than HCPT/PEG45 NPs, IC50 value was decreased approximately 8.5-fold against 4T1 cells in vitro. Moreover, the antitumor efficacy of HCPT/PEG45C18 NPs on 4T1-bearing mice was promoted significantly, the inhibition rate based on average tumor weight was 1.5-fold higher than HCPT/PEG45 NPs, besides, HCPT/PEG45C18 NPs exhibited better tumor accumulation than HCPT/PEG45 NPs. These results suggested alkyl chain affect the antitumor activity significantly due to nanoparticles decorated with alkyl chains existing higher endocytosis efficacy to cells. According to the enhanced antitumor efficacy, it was suggested that HCPT/PEG45C18 NPs showed the potential application for cancer therapy in clinic, and alkyl chains should be considered for designing biomaterials.
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Affiliation(s)
- Yifei Guo
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China.
| | - Ting Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Shuang Zhao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Hanhong Qiu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Meihua Han
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Zhengqi Dong
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China.
| | - Xiangtao Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China.
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Abstract
Growth factors are powerful molecules that regulate cellular growth, proliferation, healing, and cellular differentiation. A delivery matrix that incorporates growth factors with high loading efficiencies, controls their release, and maintains bioactivity would be a powerful tool for regenerative medicine. Alginate has several unique properties that make it an excellent platform for the delivery of proteins. Mild gelling conditions can minimize the risk of protein denaturation; moreover, alginate can serve as protection from degradation until protein release. Various modifications have been proposed to tune alginate binding and release proteins, simultaneously adjusting alginate degradability, mechanical stiffness, swelling, gelation properties and cell affinity. The primary objective of this article is to review the literature related to recent advances in the application of alginate matrices in protein delivery in regenerative medicine. A special emphasis is put on the relevance of delivery of growth factors and chemokine.
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Affiliation(s)
- E. WAWRZYŃSKA
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
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37
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Alfatama M, Lim LY, Wong TW. Alginate–C18 Conjugate Nanoparticles Loaded in Tripolyphosphate-Cross-Linked Chitosan–Oleic Acid Conjugate-Coated Calcium Alginate Beads as Oral Insulin Carrier. Mol Pharm 2018; 15:3369-3382. [DOI: 10.1021/acs.molpharmaceut.8b00391] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | - Lee Yong Lim
- Pharmacy, Centre for Optimisation of Medicines, School of Allied Health, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
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Miao T, Wang J, Zeng Y, Liu G, Chen X. Polysaccharide-Based Controlled Release Systems for Therapeutics Delivery and Tissue Engineering: From Bench to Bedside. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700513. [PMID: 29721408 PMCID: PMC5908359 DOI: 10.1002/advs.201700513] [Citation(s) in RCA: 171] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/19/2017] [Indexed: 05/08/2023]
Abstract
Polysaccharides or polymeric carbohydrate molecules are long chains of monosaccharides that are linked by glycosidic bonds. The naturally based structural materials are widely applied in biomedical applications. This article covers four different types of polysaccharides (i.e., alginate, chitosan, hyaluronic acid, and dextran) and emphasizes their chemical modification, preparation approaches, preclinical studies, and clinical translations. Different cargo fabrication techniques are also presented in the third section. Recent progresses in preclinical applications are then discussed, including tissue engineering and treatment of diseases in both therapeutic and monitoring aspects. Finally, clinical translational studies with ongoing clinical trials are summarized and reviewed. The promise of new development in nanotechnology and polysaccharide chemistry helps clinical translation of polysaccharide-based drug delivery systems.
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Affiliation(s)
- Tianxin Miao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational MedicineSchool of Public HealthXiamen UniversityXiamen361102China
- School of Chemical & Biomolecular EngineeringGeorgia Institute of TechnologyAtlantaGA30332USA
| | - Junqing Wang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational MedicineSchool of Public HealthXiamen UniversityXiamen361102China
- Collaborative Innovation Center of Guangxi Biological Medicine and theMedical and Scientific Research CenterGuangxi Medical UniversityNanning530021China
| | - Yun Zeng
- Department of PharmacologyXiamen Medical CollegeXiamen361008China
| | - Gang Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational MedicineSchool of Public HealthXiamen UniversityXiamen361102China
- State Key Laboratory of Cellular Stress BiologyInnovation Center for Cell BiologySchool of Life SciencesXiamen UniversityXiamen361102China
- State Key Laboratory of Physical Chemistry of Solid Surfaces and The MOE Key Laboratory of Spectrochemical Analysis & InstrumentationCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and NanomedicineNational Institute of Biomedical Imaging and BioengineeringNational Institutes of HealthBethesdaMD20892USA
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Self-aggregation behavior of hydrophobic sodium alginate derivatives in aqueous solution and their application in the nanoencapsulation of acetamiprid. Int J Biol Macromol 2018; 106:418-424. [DOI: 10.1016/j.ijbiomac.2017.08.038] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 07/21/2017] [Accepted: 08/04/2017] [Indexed: 01/02/2023]
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40
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He XH, Liang RH, Liu CM, Liu W, Chen RY, Hu XX, Chen J. Alkylated pectin hydrogels as potential protein drug carriers. J Appl Polym Sci 2017. [DOI: 10.1002/app.45344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiao-hong He
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang 330047 China
| | - Rui-hong Liang
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang 330047 China
| | - Cheng-mei Liu
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang 330047 China
| | - Wei Liu
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang 330047 China
| | - Rui-yun Chen
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang 330047 China
| | - Xiao-xue Hu
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang 330047 China
| | - Jun Chen
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang 330047 China
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41
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Grigor’ev D, Musabekov KB, Musabekov NK, Kusainova ZZ. The immobilization of antineoplastic drug cyclophosphamide in calcium alginate. POLYMER SCIENCE SERIES A 2017. [DOI: 10.1134/s0965545x17040022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Choudhary S, Reck JM, Carr AJ, Bhatia SR. Hydrophobically modified alginate for extended release of pharmaceuticals. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4103] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Soumitra Choudhary
- Department of Chemical Engineering University of Massachusetts Amherst Amherst MA USA
| | - Jason M. Reck
- Department of Chemical Engineering University of Massachusetts Amherst Amherst MA USA
| | - Amanda J. Carr
- Department of Chemistry Stony Brook University Stony Brook NY USA
| | - Surita R. Bhatia
- Department of Chemical Engineering University of Massachusetts Amherst Amherst MA USA
- Department of Chemistry Stony Brook University Stony Brook NY USA
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43
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Wu SY, Debele TA, Kao YC, Tsai HC. Synthesis and Characterization of Dual-Sensitive Fluorescent Nanogels for Enhancing Drug Delivery and Tracking Intracellular Drug Delivery. Int J Mol Sci 2017; 18:ijms18051090. [PMID: 28534813 PMCID: PMC5454999 DOI: 10.3390/ijms18051090] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 04/16/2017] [Accepted: 05/12/2017] [Indexed: 01/09/2023] Open
Abstract
Here, dual-sensitive fluorescent branched alginate-polyethyleneimine copolymer (bAPSC) nanogels were synthesized from thiolated alginate and stearoyl-derivatized branched polyethyleneimine. The formation of bAPSC conjugates was confirmed through proton nuclear magnetic resonance and Fourier transform infrared spectroscopy, whereas dynamic light scattering was used to measure the particle size and ζ potential of the nanogels. The fluorescent properties of the nanogels were confirmed through fluorescent spectroscopy and microscopy. In addition to the excitation-dependent fluorescence behavior, the fluorescence emission intensity of bAPSC was altered by both pH and γ-irradiation. This intensity was higher at a lower pH than at a higher pH, and it slightly decreased after γ-irradiation. The drug loading and encapsulation efficiency of bAPSC were 25.9% and 11.2%, respectively. An in vitro drug release study revealed that the synthesized nanogels release their doxorubicin (Dox) contents in a time-dependent manner, and the drug release was higher after 96 h of incubation. Approximately 43.74% and 88.36% of Dox was released after 96 h of incubation at pH 5.5 in the absence and presence of glutathione (GSH), respectively. However, relatively lower drug release, approximately 21.6% and 16%, was observed in the presence and absence of GSH at pH 7.4, respectively. Fluorescence microscopy confirmed that Dox-loaded bAPSC nanogels were internalized by HeLa cells, and drug distribution was easily tracked using fluorescent materials without additional probing agents. Moreover, cellular cytotoxicity and hemolysis results revealed less cytotoxicity and hemocompatibility of the synthesized nanogels, confirming that they are the most favorable alternative drug carriers for drug delivery systems.
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Affiliation(s)
- Szu-Yuan Wu
- Institute of Toxicology, College of Medicine, National Taiwan University, Taipei 106, Taiwan.
- Department of Radiation Oncology, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan.
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
- Department of Biotechnology, Hungkuang University, Taichung 433, Taiwan.
| | - Tilahun Ayane Debele
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan.
| | - Yu-Chih Kao
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan.
| | - Hsieh-Chih Tsai
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan.
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Zhang L, Pan J, Dong S, Li Z. The application of polysaccharide-based nanogels in peptides/proteins and anticancer drugs delivery. J Drug Target 2017; 25:673-684. [DOI: 10.1080/1061186x.2017.1326123] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Lin Zhang
- Department of Pharmaceutics, Shandong Academy of Pharmaceutical Sciences, Jinan, PR China
| | - Jifei Pan
- Department of Pharmaceutics, Shandong Academy of Pharmaceutical Sciences, Jinan, PR China
| | - Shibo Dong
- Department of Pharmaceutics, Shandong Academy of Pharmaceutical Sciences, Jinan, PR China
- Shandong Provincial Engineering Research Center for Sustained-release Preparation of Chemical Drugs, Jinan, PR China
| | - Zhaoming Li
- Department of Pharmaceutics, Shandong Academy of Pharmaceutical Sciences, Jinan, PR China
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45
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Fan ZZ, Wang JG, Zhang LF, Zhan NN, He GJ. A Novel Hyperbranched Phase Transporter for Extraction of Water-soluble Dyes in Industrial Wastewater. J CHIN CHEM SOC-TAIP 2016. [DOI: 10.1002/jccs.201600726] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhen Zhong Fan
- Department of Petroleum engineering; Northeast Petroleum University; Daqing 163318 PR China
| | - Ji Gang Wang
- Department of Petroleum engineering; Northeast Petroleum University; Daqing 163318 PR China
| | - Li Feng Zhang
- Department of Chemistry; Zhejiang University; No. 38, Zheda Road Hangzhou 310027 PR China
| | - Ning Ning Zhan
- CNOOC Energy Technology & Service Limited-Drilling & Production Co.; Tianjin 300450 PR China
| | - Gui Jin He
- Department of Chemistry; Zhejiang University; No. 38, Zheda Road Hangzhou 310027 PR China
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46
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Debele TA, Mekuria SL, Tsai HC. Polysaccharide based nanogels in the drug delivery system: Application as the carrier of pharmaceutical agents. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:964-981. [DOI: 10.1016/j.msec.2016.05.121] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/23/2016] [Accepted: 05/27/2016] [Indexed: 11/08/2022]
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Cherkasova AV, Glagolev NN, Shienok AI, Demina TS, Kotova SL, Zaichenko NL, Akopova TA, Timashev PS, Bagratashvili VN, Solovieva AB. Chitosan impregnation with biologically active tryaryl imidazoles in supercritical carbon dioxide. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:141. [PMID: 27539011 DOI: 10.1007/s10856-016-5753-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 07/09/2016] [Indexed: 06/06/2023]
Abstract
The presented paper is focused on impregnation of chitosan and its derivatives with a biologically active triaryl imidazole model compound ((2-2-hydroxyphenyl)-4.5-diphenyl-1H-imidazole) in the supercritical carbon dioxide medium. Since initial chitosan represents a polycation-exchange resin and does not swell in supercritical carbon dioxide, the impregnation was carried out in the presence of water (0.15-3.0 vol%). The maximum 2-2-hydroxyphenyl)-4.5-diphenyl-1H-imidazole concentration in a chitosan film was achieved at the ~5 × 10(-3) g/cm(3) water content in the reactor. We also used hydroxy carboxylic acid derivatives of chitosan and its copolymer with polylactide as matrices for introduction of hydrophobic 2-2-hydroxyphenyl)-4.5-diphenyl-1H-imidazole. We have shown that unmodified chitosan contains the greatest amount of 2-2-hydroxyphenyl)-4.5-diphenyl-1H-imidazole, as compared with its hydrophobic derivatives. The kinetics of 2-2-hydroxyphenyl)-4.5-diphenyl-1H-imidazole diffusion from a chitosan matrix was studied in acidified water with pH 1.6. We found that the complete release of 2-2-hydroxyphenyl)-4.5-diphenyl-1H-imidazole into the aqueous phase from unmodified chitosan films occurred in 48 h, while its complete release from chitosan modified with hydroxy carboxylic acids occurred in 5 min or less.
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Affiliation(s)
- Anastasia V Cherkasova
- N.N.Semenov Institute of Chemical Physics, Department of Polymers and Composites, 4 Kosygin St., Moscow, 119991, Russia
| | - Nikolay N Glagolev
- N.N.Semenov Institute of Chemical Physics, Department of Polymers and Composites, 4 Kosygin St., Moscow, 119991, Russia
| | - Andrey I Shienok
- N.N.Semenov Institute of Chemical Physics, Department of Polymers and Composites, 4 Kosygin St., Moscow, 119991, Russia
| | - Tatiana S Demina
- N.S. Enikolopov Institute of Synthetic Polymeric Materials, 70 Profsoyuznaya St., Moscow, 117393, Russia
| | - Svetlana L Kotova
- N.N.Semenov Institute of Chemical Physics, Department of Polymers and Composites, 4 Kosygin St., Moscow, 119991, Russia.
| | - Natalia L Zaichenko
- N.N.Semenov Institute of Chemical Physics, Department of Polymers and Composites, 4 Kosygin St., Moscow, 119991, Russia
| | - Tatiana A Akopova
- N.S. Enikolopov Institute of Synthetic Polymeric Materials, 70 Profsoyuznaya St., Moscow, 117393, Russia
| | - Peter S Timashev
- Institute of Photonic Technologies, Research Center of Crystallography and Photonics, 2 Pionerskaia St., Troitsk, Moscow, 142190, Russia
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, 2-4 Bolshaya Pirogovskaya St., Moscow, 119991, Russia
| | - Victor N Bagratashvili
- Institute of Photonic Technologies, Research Center of Crystallography and Photonics, 2 Pionerskaia St., Troitsk, Moscow, 142190, Russia
| | - Anna B Solovieva
- N.N.Semenov Institute of Chemical Physics, Department of Polymers and Composites, 4 Kosygin St., Moscow, 119991, Russia
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48
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Kuskov AN, Kulikov PP, Shtilman MI, Rakitskii VN, Tsatsakis AM. Amphiphilic poly-N-vynilpyrrolidone nanoparticles: Cytotoxicity and acute toxicity study. Food Chem Toxicol 2016; 96:273-9. [PMID: 27539747 DOI: 10.1016/j.fct.2016.08.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 07/28/2016] [Accepted: 08/13/2016] [Indexed: 11/17/2022]
Abstract
The aim of the present study was to evaluate the cytotoxicity against MCF-7 cells and acute intraperitoneal toxicity of amphiphilic poly-N-vinylpyrrolidone nanoparticles to confirm possibility of their application for creation of novel drug delivery systems. The effect of cellular uptake of polymeric nanoparticles on human cancer cell line MCF-7 cells was investigated by MTT assay. MTT analysis showed that tested amphiphilic polymers were essentially non-toxic. In acute toxicity studies, LD50 and other toxicity indexes were evaluated, under which no deaths or treatment related complications were observed even in high concentration treatment for 14 days of experiment. For histological analysis, organs of the animals were weighed and examined. No animal died during the study and no significant changes have been observed regarding body weight, feed consumption, organ weight or histological data. Obtained results show that amphiphilic poly-N-vinylpyrrolidone nanoparticles possessed no toxicity against cells and in animals after intraperitoneal administration. Thus, amphiphilic PVP nanoparticles demonstrate high potential as carriers for novel high-effective drug delivery systems.
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Affiliation(s)
- A N Kuskov
- D.I. Mendeleyev University of Chemical Technology of Russia, Moscow 125047, Russian Federation; Moscow State University of Mechanical Engineering (MAMI), Moscow 107023, Russian Federation.
| | - P P Kulikov
- D.I. Mendeleyev University of Chemical Technology of Russia, Moscow 125047, Russian Federation
| | - M I Shtilman
- D.I. Mendeleyev University of Chemical Technology of Russia, Moscow 125047, Russian Federation
| | - V N Rakitskii
- Federal Scientific Center of Hygiene, F.F. Erisman, Moscow 141014, Russian Federation
| | - A M Tsatsakis
- University of Crete, Medical School, Laboratory of Toxicology, Voutes, Heraklion 71409, Crete, Greece
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49
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Lockhart JN, Beezer DB, Stevens DM, Spears BR, Harth E. One-pot polyglycidol nanogels via liposome master templates for dual drug delivery. J Control Release 2016; 244:366-374. [PMID: 27411978 DOI: 10.1016/j.jconrel.2016.07.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 06/23/2016] [Accepted: 07/07/2016] [Indexed: 12/25/2022]
Abstract
Polyglycidol-based nanohydrogels (nHGs) have been prepared by optimizing the use of liposome master templates resulting in a high-yielding and more practical one-pot process to provide materials capable of carrying drugs of adverse chemical nature. The nanogels prepared with the one-pot method showed favorable kinetics for the release of either Nile Red (NR) or lysozyme (LYS), loaded with gel precursors such as semi-branched poly(glycidol allylglycidyl ether), PEG dithiol (1KDa), a free radical initiator and liposomal lipids at the liposome formation step. This process is superior to a comparable step-wise traditional approach and circumvents loading of the gel precursors with the hydrophilic drug into preformed liposome templates. A thiol-ene crosslinking reaction accomplishes the formation of the nanonetwork resulting in nHGs prepared in the traditional step-wise (nHG-SW) approach and the one-pot (nHG-OP) process. Both nanogel networks were characterized in terms of particle size and zeta (ζ) potential with average values of 148nm±39nm and -25.9mV±9.2 for the nHG-SW and 132nm±32 and -23.1mV±9.7 for the nHG-OPs. Loading efficiency for both of the nanogels with NR was determined by spectrophotometry to be 28% (nHP-SW) and 31% (nHP-OP). The LYS loading was based on the target loading of 10μg/mg for both nanogels found to be 84% and 86% for the nHG-SW and nHP-OP, respectively. As proof of concept for combination drug delivery, the in vitro release of both drug mimics, NR and LYS, were monitored under physiologically relevant conditions by an optimized dialysis method. The implementation of the multi-functional and semi-branched polyglycidol is recognized as the main contributor for the observed highly controlled release of proteins that are otherwise rapidly released from common PEG-based nanogel networks. Furthermore, the one-pot process led to be the most favorable drug delivery system based on the release kinetics pointing to a denser polymer network.
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Affiliation(s)
- Jacob N Lockhart
- Department of Chemistry, Vanderbilt Institute of Nanoscale Science and Engineering, Vanderbilt Institute of Chemical Biology, Vanderbilt University, 7665 Stevenson Center, Nashville, TN 37235, United States
| | - Dain B Beezer
- Department of Chemistry, Vanderbilt Institute of Nanoscale Science and Engineering, Vanderbilt Institute of Chemical Biology, Vanderbilt University, 7665 Stevenson Center, Nashville, TN 37235, United States
| | - David M Stevens
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN 37212, United States
| | - Benjamin R Spears
- Department of Chemistry, Vanderbilt Institute of Nanoscale Science and Engineering, Vanderbilt Institute of Chemical Biology, Vanderbilt University, 7665 Stevenson Center, Nashville, TN 37235, United States
| | - Eva Harth
- Department of Chemistry, Vanderbilt Institute of Nanoscale Science and Engineering, Vanderbilt Institute of Chemical Biology, Vanderbilt University, 7665 Stevenson Center, Nashville, TN 37235, United States; Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN 37212, United States.
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50
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Madzovska-Malagurski I, Vukasinovic-Sekulic M, Kostic D, Levic S. Towards antimicrobial yet bioactive Cu-alginate hydrogels. ACTA ACUST UNITED AC 2016; 11:035015. [PMID: 27305176 DOI: 10.1088/1748-6041/11/3/035015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The simplest approach to enhance alginate hydrogel characteristics and functional properties is to replace the calcium in the process of alginate gelation with other metallic ions which are essential for living systems. Gelling of alginate with other ions and using modern encapsulation techniques can provide new delivery systems with required properties. Hence, in this study Cu-alginate hydrogels in the form of microbeads were produced by electrostatic extrusion using gelling solutions with Cu(II) concentrations in the range 13.5-270 mM and comprehensively characterized in vitro. The variation of gelling solution concentration influenced the microbead Cu(II) content, size, biomechanical properties, Cu(II) release and subsequently potential biomedical application. The formulations chosen for biomedical evaluation showed potential for antimicrobial and tissue engineering applications. Microbeads with higher Cu(II) loading (~100 μmol g(-1)) induced immediate bactericidal effects against Escherichia coli and Staphylococcus aureus. Conversely, Cu(II) release from microbeads with the Cu(II) content of ~60 μmol g(-1) was slower and they were suitable for promoting and maintaining chondrogenic phenotype of bovine calf chondrocytes in 3D culture. Results of this study have shown possibilities for tuning Cu-alginate properties for potential biomedical applications such as antimicrobial wound dressings, tissue engineering scaffolds or articular cartilage implants.
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Affiliation(s)
- I Madzovska-Malagurski
- University of Belgrade, Faculty of Technology and Metallurgy, Karnegijeva 4, 11000 Belgrade, Serbia
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