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Rudnik-Jansen I, Schrijver K, Woike N, Tellegen A, Versteeg S, Emans P, Mihov G, Thies J, Eijkelkamp N, Tryfonidou M, Creemers L. Intra-articular injection of triamcinolone acetonide releasing biomaterial microspheres inhibits pain and inflammation in an acute arthritis model. Drug Deliv 2019; 26:226-236. [PMID: 30843733 PMCID: PMC6407600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 01/04/2019] [Accepted: 01/08/2019] [Indexed: 10/07/2023] Open
Abstract
Inflammation of the synovium and joint capsule is a main driver of pain in an osteoarthritic (OA) joint. Triamcinolone acetonide (TAA) is a classical corticosteroid that reduces synovitis and alleviates pain, albeit transiently. Biomaterial-based local TAA release may prolong the suppression of pain without the need for multiple injections. Polylactic-co-glycolic acid (PLGA) formulations of TAA prolong OA pain relief to a limited extent. A novel polyesteramide (PEA) microsphere platform allows for extended release in the OA joint for over 3 months. To evaluate their effect on pain and inflammation, TAA-loaded microspheres were intra-articularly delivered to the knee joint in a rat model of acute arthritis induced by intra-articular injection of streptococcal cell wall peptidoglycan-polysaccharide (PGPS) and subsequent flare-ups by intravenous PGPS injections. PEA-loaded microspheres were benchmarked with TAA-loaded PLGA microspheres and bolus TAA injection. TAA treatments were injected intra-articularly before the first induced flare-up. TAA-loaded PEA and PLGA microspheres reduced joint swelling and signs of pain-like behavior over the entire study period, as assessed by weight bearing and referred mechanical hypersensitivity, whereas bolus suspension was effective for a shorter time period. TAA-loaded PEA microspheres reduced lameness to a greater extent than TAA-loaded PLGA microspheres. In conclusion, a single intra-articular injection of TAA-loaded PEA microspheres reduced joint swelling and induced longer pain relief compared to bolus injection. Hence relief of inflammation and pain by PEA-based delivery of TAA may prove to be effective and durable.
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Affiliation(s)
- Imke Rudnik-Jansen
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Karin Schrijver
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Nina Woike
- DSM Biomedical B.V, Geleen, The Netherlands
| | - Anna Tellegen
- Department of Clinical Sciences of Companion Animals, Utrecht University, Utrecht, the Netherlands
| | - Sabine Versteeg
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Pieter Emans
- Department of Orthopedics, Maastricht University Medical Center Utrecht, Utrecht, the Netherlands
| | | | - Jens Thies
- DSM Biomedical B.V, Geleen, The Netherlands
| | - Niels Eijkelkamp
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Marianna Tryfonidou
- Department of Clinical Sciences of Companion Animals, Utrecht University, Utrecht, the Netherlands
| | - Laura Creemers
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands
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Abstract
Neem oil gained importance due to its antibacterial properties. Therefore, it is extensively being used for various applications. Oils can be polymerized as a polyesteramide to extend their utility as biomaterials. In our studies, we synthesized polyesteramide from neem oil and various compositions of blends were prepared with the drug, chlorohexidine digluconate (CH) to develop a nanomaterial for tissue regeneration. The studies such as cytotoxicity, biodegradable, antibacterial, in vitro drug release, in vivo wound healing, and histopathological studies were performed to identify their potential for tissue regeneration. In vivo wound healing studies of the nanofiber mats with and without CH recorded a faster healing rate as compared to the commercial cream (povidone-iodine). Most importantly, there was no requirement of repeated application of nanofiber mats during the treatment. The histopathology studies also suggested the re-epithelialization of the wounds. Hence, these nanomaterials are considered to be environmentally safe scaffolds for efficient tissue regeneration applications.
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Affiliation(s)
- Naresh Killi
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Pune, Maharashtra 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 411008, India
| | - Anil Tukaram Pawar
- MAEER's Maharashtra Institute of Pharmacy, Pune, Maharashtra 411038, India
| | - Rathna Vn Gundloori
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Pune, Maharashtra 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 411008, India
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Rudnik-Jansen I, Schrijver K, Woike N, Tellegen A, Versteeg S, Emans P, Mihov G, Thies J, Eijkelkamp N, Tryfonidou M, Creemers L. Intra-articular injection of triamcinolone acetonide releasing biomaterial microspheres inhibits pain and inflammation in an acute arthritis model. Drug Deliv 2019. [PMID: 30843733 PMCID: PMC6407600 DOI: 10.1080/10717544.2019.1568625] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Inflammation of the synovium and joint capsule is a main driver of pain in an osteoarthritic (OA) joint. Triamcinolone acetonide (TAA) is a classical corticosteroid that reduces synovitis and alleviates pain, albeit transiently. Biomaterial-based local TAA release may prolong the suppression of pain without the need for multiple injections. Polylactic-co-glycolic acid (PLGA) formulations of TAA prolong OA pain relief to a limited extent. A novel polyesteramide (PEA) microsphere platform allows for extended release in the OA joint for over 3 months. To evaluate their effect on pain and inflammation, TAA-loaded microspheres were intra-articularly delivered to the knee joint in a rat model of acute arthritis induced by intra-articular injection of streptococcal cell wall peptidoglycan-polysaccharide (PGPS) and subsequent flare-ups by intravenous PGPS injections. PEA-loaded microspheres were benchmarked with TAA-loaded PLGA microspheres and bolus TAA injection. TAA treatments were injected intra-articularly before the first induced flare-up. TAA-loaded PEA and PLGA microspheres reduced joint swelling and signs of pain-like behavior over the entire study period, as assessed by weight bearing and referred mechanical hypersensitivity, whereas bolus suspension was effective for a shorter time period. TAA-loaded PEA microspheres reduced lameness to a greater extent than TAA-loaded PLGA microspheres. In conclusion, a single intra-articular injection of TAA-loaded PEA microspheres reduced joint swelling and induced longer pain relief compared to bolus injection. Hence relief of inflammation and pain by PEA-based delivery of TAA may prove to be effective and durable.
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Affiliation(s)
- Imke Rudnik-Jansen
- a Department of Orthopedics , University Medical Center Utrecht , Utrecht , the Netherlands
| | - Karin Schrijver
- a Department of Orthopedics , University Medical Center Utrecht , Utrecht , the Netherlands
| | - Nina Woike
- b DSM Biomedical B.V , Geleen , The Netherlands
| | - Anna Tellegen
- c Department of Clinical Sciences of Companion Animals , Utrecht University , Utrecht , the Netherlands
| | - Sabine Versteeg
- d Laboratory of Translational Immunology , University Medical Center Utrecht, Utrecht University , Utrecht , the Netherlands
| | - Pieter Emans
- e Department of Orthopedics , Maastricht University Medical Center Utrecht , Utrecht , the Netherlands
| | | | - Jens Thies
- b DSM Biomedical B.V , Geleen , The Netherlands
| | - Niels Eijkelkamp
- d Laboratory of Translational Immunology , University Medical Center Utrecht, Utrecht University , Utrecht , the Netherlands
| | - Marianna Tryfonidou
- c Department of Clinical Sciences of Companion Animals , Utrecht University , Utrecht , the Netherlands
| | - Laura Creemers
- a Department of Orthopedics , University Medical Center Utrecht , Utrecht , the Netherlands
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Zhang S, Zhang J, Tang L, Huang J, Fang Y, Ji P, Wang C, Wang H. A Novel Synthetic Strategy for Preparing Polyamide 6 (PA6)-Based Polymer with Transesterification. Polymers (Basel) 2019; 11:polym11060978. [PMID: 31163667 PMCID: PMC6631148 DOI: 10.3390/polym11060978] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 05/29/2019] [Accepted: 05/30/2019] [Indexed: 11/16/2022] Open
Abstract
In the polymerization of caprolactam, the stoichiometry of carboxyl groups and amine groups in the process of melt polycondensation needs to be balanced, which greatly limits the copolymerization modification of polyamide 6. In this paper, by combining the characteristics of the polyester polymerization process, a simple and flexible synthetic route is proposed. A polyamide 6-based polymer can be prepared by combining caprolactam hydrolysis polymerization with transesterification. First, a carboxyl-terminated polyamide 6-based prepolymer is obtained by a caprolactam hydrolysis polymerization process using a dibasic acid as a blocking agent. Subsequently, ethylene glycol is added for esterification to form a glycol-terminated polyamide 6-based prepolymer. Finally, a transesterification reaction is carried out to prepare a polyamide 6-based polymer. In this paper, a series of polyamide 6-based polymers with different molecular weight blocks were prepared by adjusting the amount and type of dibasic acid added, and the effects of different control methods on the structural properties of the final product are analyzed. The results showed that compared with the traditional polymerization method of polyamide 6, the novel synthetic strategy developed in this paper can flexibly design prepolymers with different molecular weights and end groups to meet different application requirements. In addition, the polyamide 6-based polymer maintains excellent mechanical and hygroscopic properties. Furthermore, the molecular weight increase in the polyamide 6 polymer is no longer dependent on the metering balance of the end groups, providing a new synthetic route for the copolymerization of polyamide 6 copolymer.
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Affiliation(s)
- Shengming Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of Textile Science & Technology (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Jingchun Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of Textile Science & Technology (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Lian Tang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of Textile Science & Technology (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Jiapeng Huang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of Textile Science & Technology (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Yunhua Fang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of Textile Science & Technology (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Peng Ji
- Co-innovation center for textile industry, Shanghai 201620, China.
| | - Chaosheng Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of Textile Science & Technology (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Huaping Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of Textile Science & Technology (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
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Bonillo Martínez AD, Galán ICR, Bellver MVM. Application of a Biodegradable Polyesteramide Derived from L-Alanine as Novel Excipient for Controlled Release Matrix Tablets. AAPS PharmSciTech 2017; 18:3286-3295. [PMID: 28589306 DOI: 10.1208/s12249-017-0809-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Accepted: 05/11/2017] [Indexed: 11/30/2022] Open
Abstract
This pre-formulation study assays the capacity of the polyesteramide PADAS, poly (L-alanine-dodecanediol-L-alanine-sebacic), as an insoluble tablet excipient matrix for prolonged drug release. The flow properties of PADAS were suitable for tableting, and the compressibility of tablets containing exclusively PADAS was evaluated by ESEM observation of the microstructure. The tablets were resistant to crushing and non-friable and they did not undergo disintegration (typical features of an inert matrix). Tablets containing 33.33% sodium diclofenac (DF), ketoprofen (K) or dexketoprofen trometamol (DK-T) as a model drug, in addition with 66.67% of polymer, were formulated, and the absence of interactions between the components was confirmed by differential scanning calorimetry. Dissolution tests showed that PADAS retained DF and K and prolonged drug release, following a Higuchi kinetic. The tablets containing DK-T did not retain the drug sufficiently for prolonged release to be established. Tablets containing DK-T and 66.67, 83.33 or 91.67% PADAS, compressed at 44.48 or 88.96 kN, were elaborated to determine the influence of the polymer amount and of the compression force on DK-T release. Both parameters significantly delayed drug release, except when the proportion of polymer was 91.67%.
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