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Xie R, Li J, Zhao M, Wu F. Recent advances in the development of poly(ester amide)s-based carriers for drug delivery. Saudi Pharm J 2024; 32:102123. [PMID: 38911279 PMCID: PMC11190562 DOI: 10.1016/j.jsps.2024.102123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 05/31/2024] [Indexed: 06/25/2024] Open
Abstract
Biodegradable and biocompatible biomaterials have several important applications in drug delivery. The biomaterial family known as poly(ester amide)s (PEAs) has garnered considerable interest because it exhibits the benefits of both polyester and polyamide, as well as production from readily available raw ingredients and sophisticated synthesis techniques. Specifically, α-amino acid-based PEAs (AA-PEAs) are promising carriers because of their structural flexibility, biocompatibility, and biodegradability. Herein, we summarize the latest applications of PEAs in drug delivery systems, including antitumor, gene therapy, and protein drugs, and discuss the prospects of drug delivery based on PEAs, which provides a reference for designing safe and efficient drug delivery carriers.
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Affiliation(s)
- Rui Xie
- Department of Pharmacy, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou 310006, China
| | - Jiang Li
- Department of Pharmacy, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou 310006, China
| | - Min Zhao
- Department of Pharmacy, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou 310006, China
| | - Fan Wu
- Department of Pharmacy, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou 310006, China
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2
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Xiang H, Zhao W, Jiang K, He J, Chen L, Cui W, Li Y. Progress in regulating inflammatory biomaterials for intervertebral disc regeneration. Bioact Mater 2024; 33:506-531. [PMID: 38162512 PMCID: PMC10755503 DOI: 10.1016/j.bioactmat.2023.11.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/04/2023] [Accepted: 11/29/2023] [Indexed: 01/03/2024] Open
Abstract
Intervertebral disc degeneration (IVDD) is rising worldwide and leading to significant health issues and financial strain for patients. Traditional treatments for IVDD can alleviate pain but do not reverse disease progression, and surgical removal of the damaged disc may be required for advanced disease. The inflammatory microenvironment is a key driver in the development of disc degeneration. Suitable anti-inflammatory substances are critical for controlling inflammation in IVDD. Several treatment options, including glucocorticoids, non-steroidal anti-inflammatory drugs, and biotherapy, are being studied for their potential to reduce inflammation. However, anti-inflammatories often have a short half-life when applied directly and are quickly excreted, thus limiting their therapeutic effects. Biomaterial-based platforms are being explored as anti-inflammation therapeutic strategies for IVDD treatment. This review introduces the pathophysiology of IVDD and discusses anti-inflammatory therapeutics and the components of these unique biomaterial platforms as comprehensive treatment systems. We discuss the strengths, shortcomings, and development prospects for various biomaterials platforms used to modulate the inflammatory microenvironment, thus providing guidance for future breakthroughs in IVDD treatment.
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Affiliation(s)
- Honglin Xiang
- Department of Orthopaedics, Laboratory of Biological Tissue Engineering and Digital Medicine, Affiliated Hospital of North Sichuan Medical College, No. 1 The South of Maoyuan Road, Nanchong, Sichuan, 637000, PR China
| | - Weikang Zhao
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Orthopedic Laboratory of Chongqing Medical University, No.1 Youyi Road, Yuzhong District, Chongqing, 400016, PR China
| | - Ke Jiang
- Department of Orthopaedics, Laboratory of Biological Tissue Engineering and Digital Medicine, Affiliated Hospital of North Sichuan Medical College, No. 1 The South of Maoyuan Road, Nanchong, Sichuan, 637000, PR China
| | - Jiangtao He
- Department of Orthopaedics, Laboratory of Biological Tissue Engineering and Digital Medicine, Affiliated Hospital of North Sichuan Medical College, No. 1 The South of Maoyuan Road, Nanchong, Sichuan, 637000, PR China
| | - Lu Chen
- Department of Orthopaedics, Laboratory of Biological Tissue Engineering and Digital Medicine, Affiliated Hospital of North Sichuan Medical College, No. 1 The South of Maoyuan Road, Nanchong, Sichuan, 637000, PR China
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, PR China
| | - Yuling Li
- Department of Orthopaedics, Laboratory of Biological Tissue Engineering and Digital Medicine, Affiliated Hospital of North Sichuan Medical College, No. 1 The South of Maoyuan Road, Nanchong, Sichuan, 637000, PR China
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3
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Tissue Adhesives in Reconstructive and Aesthetic Surgery—Application of Silk Fibroin-Based Biomaterials. Int J Mol Sci 2022; 23:ijms23147687. [PMID: 35887050 PMCID: PMC9320471 DOI: 10.3390/ijms23147687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/07/2022] [Accepted: 07/10/2022] [Indexed: 02/04/2023] Open
Abstract
Tissue adhesives have been successfully used in various kind of surgeries such as oral and maxillofacial surgery for some time. They serve as a substitute for suturing of tissues and shorten treatment time. Besides synthetic-based adhesives, a number of biological-based formulations are finding their way into research and clinical application. In natural adhesives, proteins play a crucial role, mediating adhesion and cohesion at the same time. Silk fibroin, as a natural biomaterial, represents an interesting alternative to conventional medical adhesives. Here, the most commonly used bioadhesives as well as the potential of silk fibroin as natural adhesives will be discussed.
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4
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Abstract
Biodegradable and biocompatible biomaterials have offered much more opportunities from an engineering standpoint for treating diseases and maintaining health. Poly(ester amide)s (PEAs), as an outstanding family among such biomaterials, have risen overwhelmingly in the past decades. These synthetic polymers have easily and widely available raw materials and a diversity of synthetic approaches, which have attracted considerable attention. More importantly, combining the superiorities of polyamides and polyesters, PEAs have emerged with better functions. They could have improved biodegradability, biocompatibility, and cell-material interactions. The PEAs derived from α-amino acids even allow the introduction of pendant sites for further modification or functionalization. Meanwhile, it is gradually recognized that the chemical structures are closely related to the physiochemical and biological properties of PEAs so that their properties can be precisely controlled. PEAs therefore become significant materials in the biomedical fields. This review will attempt to summarize the recent progress in the development of PEAs with respect to the preparation materials and methods, structure-property relationships along with their latest biomedical accomplishments, especially for drug delivery and tissue engineering.
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Affiliation(s)
- Shuyan Han
- School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518057, People's Republic of China
| | - Jun Wu
- School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518057, People's Republic of China
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5
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Methods of synthesis, characterization and biomedical applications of biodegradable poly(ester amide)s- A review. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109323] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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6
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Worch JC, Weems AC, Yu J, Arno MC, Wilks TR, Huckstepp RTR, O'Reilly RK, Becker ML, Dove AP. Elastomeric polyamide biomaterials with stereochemically tuneable mechanical properties and shape memory. Nat Commun 2020; 11:3250. [PMID: 32591525 PMCID: PMC7320000 DOI: 10.1038/s41467-020-16945-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 05/27/2020] [Indexed: 12/14/2022] Open
Abstract
Biocompatible polymers are widely used in tissue engineering and biomedical device applications. However, few biomaterials are suitable for use as long-term implants and these examples usually possess limited property scope, can be difficult to process, and are non-responsive to external stimuli. Here, we report a class of easily processable polyamides with stereocontrolled mechanical properties and high-fidelity shape memory behaviour. We synthesise these materials using the efficient nucleophilic thiol-yne reaction between a dipropiolamide and dithiol to yield an α,β - unsaturated carbonyl moiety along the polymer backbone. By rationally exploiting reaction conditions, the alkene stereochemistry is modulated between 35-82% cis content and the stereochemistry dictates the bulk material properties such as tensile strength, modulus, and glass transition. Further access to materials possessing a broader range of thermal and mechanical properties is accomplished by polymerising a variety of commercially available dithiols with the dipropiolamide monomer.
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Affiliation(s)
- Joshua C Worch
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Andrew C Weems
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Jiayi Yu
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Maria C Arno
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Thomas R Wilks
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | | | - Rachel K O'Reilly
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Matthew L Becker
- Department of Chemistry, Department of Mechanical Engineering & Materials Science, Department of Orthopaedic Surgery, Duke University, 308 Research Drive, Durham, NC, 27708, USA.
| | - Andrew P Dove
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
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7
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Meimoun J, Bernhard Y, Pelinski L, Bousquet T, Pellegrini S, Raquez JM, De Winter J, Gerbaux P, Cazaux F, Tahon JF, Gaucher V, Chenal T, Favrelle-Huret A, Zinck P. Lipase-catalysed polycondensation of levulinic acid derived diol-diamide monomers: access to new poly(ester- co-amide)s. Polym Chem 2020. [DOI: 10.1039/d0py01301c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A new family of biobased poly(ester-co-amide)s is reported from the enzymatic polycondensation of a library of levulinic acid derived diol-diamide monomers with diesters.
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8
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Moustafa A, Abd Rabo Moustafa MM, Zilinskas GJ, Gillies ER. Covalent drug immobilization in poly(ester amide) nanoparticles for controlled release. CAN J CHEM ENG 2015. [DOI: 10.1002/cjce.22323] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Amira Moustafa
- Department of Chemical and Biochemical Engineering; University of Western Ontario; 1151 Richmond Street London ON N6A 5B9 Canada
| | | | - Gregory J. Zilinskas
- Biomedical Engineering Graduate Program; University of Western Ontario; 1151 Richmond Street London ON N6A 5B9 Canada
| | - Elizabeth R. Gillies
- Department of Chemical and Biochemical Engineering; University of Western Ontario; 1151 Richmond Street London ON N6A 5B9 Canada
- Department of Chemistry; University of Western Ontario; 1151 Richmond Street London ON N6A 5B7 Canada
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9
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Shaker MA, Younes HM. Photo-irradiation paradigm: Mapping a remarkable facile technique used for advanced drug, gene and cell delivery. J Control Release 2015; 217:10-26. [PMID: 26184048 DOI: 10.1016/j.jconrel.2015.07.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 07/02/2015] [Accepted: 07/03/2015] [Indexed: 12/13/2022]
Abstract
Undoubtedly, the progression of photo-irradiation technique has provided a smart engineering tool for the state-of-the-art biomaterials that guide the biomedical and therapeutic domains for promoting the modern pharmaceutical industry. Many investigators had exploited such a potential technique to create/ameliorate numerous pharmaceutical carriers. These carriers show promising applications that vary from small drug to therapeutic protein delivery and from gene to living cell encapsulation design. Harmony between the properties of precisely engineered precursors and the formed network structure broadens the investigator's intellect for both brilliant creations and effective applications. As well, controlling photo-curing at the formulation level, through manipulating the absorption of light stimuli, photoinitiator system and photo-responsive precursor, facilitates the exploration of novel distinctive biomaterials. Discussion of utilizing different photo-curing procedures in designing/formulation of different pharmaceutical carriers is the main emphasis of this review. In addition, recent applications of these intelligent techniques in targeted, controlled, and sustained drug delivery with understanding of photo-irradiation concept and mechanism are illustrated.
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Affiliation(s)
- Mohamed A Shaker
- Pharmaceutics Department, College of Pharmacy, PO Box 30040, Taibah University, Al Madina Al Munawara, Saudi Arabia; Pharmaceutics Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt.
| | - Husam M Younes
- Pharmaceutics & Polymeric Drug Delivery Research Lab (PPDDRL), College of Pharmacy, PO Box 2713, Qatar University, Doha, Qatar
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10
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Liu J, Liu XL, Xi TF, Chu CC. A novel pseudo-protein-based biodegradable coating for magnesium substrates: in vitro corrosion phenomena and cytocompatibility. J Mater Chem B 2015; 3:878-893. [DOI: 10.1039/c4tb01527d] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The goal of this study is to examine whether a member of the newly developed biodegradable pseudo-protein biomaterial family could provide a far better protection and performance than the popular hydrolytically degradable poly(glycolide-co-lactide) (PLGA) biomaterial on an experimental magnesium substrate as a model.
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Affiliation(s)
- J. Liu
- Center for Biomedical Materials and Tissue Engineering
- Academy for Advanced Interdisciplinary Studies
- Peking University
- Beijing 100871
- China
| | - X. L. Liu
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - T. F. Xi
- Center for Biomedical Materials and Tissue Engineering
- Academy for Advanced Interdisciplinary Studies
- Peking University
- Beijing 100871
- China
| | - C. C. Chu
- Biomedical Engineering Program
- Cornell University
- Ithaca
- USA
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11
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Pang X, Wu J, Chu CC, Chen X. Development of an arginine-based cationic hydrogel platform: Synthesis, characterization and biomedical applications. Acta Biomater 2014; 10:3098-107. [PMID: 24726959 DOI: 10.1016/j.actbio.2014.04.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 03/22/2014] [Accepted: 04/02/2014] [Indexed: 12/20/2022]
Abstract
A series of biodegradable and biocompatible cationic hybrid hydrogels was developed from water-soluble arginine-based unsaturated polymer (Arg-AG) and poly(ethylene glycol) diacrylate (PEG-DA) by a photocrosslinking method. The physicochemical, mechanical and biological properties of these hydrogels were intensively examined. The hydrogels were characterized in terms of equilibrium swelling ratio (Qeq), compression modulus and interior morphology. The effects of the chemical structure of the two Arg-AG precursors and the feed ratio of these precursors on the properties of resulting hybrid hydrogels were investigated. The crosslinking density and mechanical strength of the hybrid hydrogels increased with an increase in allylglycine (AG) content in the Arg-AG precursor, as the gelation efficiency (Gf) increased from 80% to 90%, but the swelling and pore size of the hybrid hydrogels decreased as the equilibrium swelling weight (Qeq) decreased from 1890% to 1330% and the pore size from 28 to 22 μm. The short-term in vitro biodegradation properties of hydrogels were investigated as a function of Arg-AG chemical structures and enzymes. Hybrid hydrogels showed faster biodegradation in an enzyme solution than in a phosphate-buffered saline solution. Bovine serum albumin and insulin release profiles indicated that this cationic hydrogel system could significantly improve the sustained release of the negatively charged proteins. The cellular response of the hybrid hydrogels was preliminarily evaluated by cell attachment, encapsulation and proliferation tests using live-dead and MTT assay. The results showed that the hybrid hydrogels supported cell attachment well and were nontoxic to the cells.
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Affiliation(s)
- Xuan Pang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China; Department of Fiber Science and Apparel Design, Cornell University, Ithaca, NY 14853-4401, USA
| | - Jun Wu
- Department of Biomedical Engineering, Cornell University, Ithaca, NY 14853-4401, USA
| | - Chih-Chang Chu
- Department of Fiber Science and Apparel Design, Cornell University, Ithaca, NY 14853-4401, USA; Department of Biomedical Engineering, Cornell University, Ithaca, NY 14853-4401, USA.
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China.
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12
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Fonseca AC, Gil MH, Simões PN. Biodegradable poly(ester amide)s – A remarkable opportunity for the biomedical area: Review on the synthesis, characterization and applications. Prog Polym Sci 2014. [DOI: 10.1016/j.progpolymsci.2013.11.007] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Kim JH, Lee JH, Kim KS, Na K, Song SC, Lee J, Kuh HJ. Intratumoral delivery of paclitaxel using a thermosensitive hydrogel in human tumor xenografts. Arch Pharm Res 2013; 36:94-101. [PMID: 23371803 DOI: 10.1007/s12272-013-0013-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Poly(organophosphazene), a novel thermosensitive hydrogel, is an injectable drug delivery system (DDS) that transforms from sol to gel at body temperature. Paclitaxel (PTX) is a mitotic inhibitor used in the treatment of various solid tumors. Due to its poor solubility in water and efflux systems in the gastrointestinal tract, PTX is a good candidate for local DDS. Here, we evaluated the penetration kinetics of PTX released from the PTX-poly(organophosphazene) hydrogel mixture in multicellular layers (MCLs) of human cancer cells. We also investigated the tumor pharmacokinetics of PTX (60 mg/kg) when administered as an intratumoral injection using poly(organophosphazene) in mice with human tumor xenografts. When PTX was formulated at 0.6 % w/w into a 10 % w/w hydrogel, the in vitro and in vivo release were found to be 40 and 90 % of the dose, respectively, in a sustained manner over 4 weeks. Exposure of MCLs to PTX-hydrogel showed time-dependent drug penetration and accumulation. In mice, the hydrogel mass was well retained over 6 weeks, and the PTX concentration in the tumor tissue was maximal at 14 days, which rapidly decreased and coincided with rebound tumor growth after 14 days of suppression. These data indicate that PTX-hydrogel should be intratumorally injected every 14 days, or drug release duration should be prolonged in order to achieve a long-term antitumor effect. Overall, poly(organophosphazene) represents a novel thermosensitive DDS for intratumoral delivery of PTX, which can accommodate a large dose of the drug in addition to reducing its systemic exposure by restricting biodistribution to tumor tissue alone.
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Affiliation(s)
- Jung Ho Kim
- Department of Biomedical Science, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-ku, Seoul 137-701, South Korea
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Wang W, Deng L, Xu S, Zhao X, Lv N, Zhang G, Gu N, Hu R, Zhang J, Liu J, Dong A. A reconstituted "two into one" thermosensitive hydrogel system assembled by drug-loaded amphiphilic copolymer nanoparticles for the local delivery of paclitaxel. J Mater Chem B 2012; 1:552-563. [PMID: 32260827 DOI: 10.1039/c2tb00068g] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Combination delivery systems composed of injectable hydrogels and drug-incorporated micelles or nanoparticles with tunable and convenient properties for clinical operation and storage are urgently demanded in regional cancer chemotherapy to prolong and control drug release, enhance antitumor efficiency and decrease side effects. Previously, we developed a novel thermosensitive amphiphilic triblock copolymer, poly(ε-caprolactone-co-1,4,8-trioxa[4.6]spiro-9-undecanone)-poly(ethylene glycol)-poly(ε-caprolactone-co-1,4,8-trioxa[4.6]spiro-9-undecanone) (PECT), and fabricated a reconstituted "two into one" combination system of thermosensitive injectable hydrogel PTX/PECTGel, assembled from paclitaxel (PTX)-loaded PECT nanoparticles (NPs). PTX/PECTGel could be stored as freeze-dried powders of paclitaxel-loaded PECT NPs, which could be reconstituted into aqueous fluid dispersions at ambient temperature just by mixing with water after gentle stirring for several minutes, and form a hydrogel at the injected site in vivo. Herein, the drug release, in vivo morphology, antitumor efficiency and pharmacokinetic properties of PTX/PECTGel were evaluated. The PTX/PECTGel combination system could continuously release PTX in a near linear manner over 42 days in vitro, and simultaneously, PTX/PECT NPs containing 75% of the total released PTX could dissociate from the PTX/PECTGel. PTX/PECTGel exhibited remarkable in vitro anti-proliferative activities against Ehrlich ascites carcinoma (EAC) cancer cells. The peritumorally or intratumorally injected PECT gel could cover the entire surface or fill up the interior space of the tumor, respectively. A single peritumoral injection of the PTX/PECTGel formulation at a low dosage of 10 mg kg-1 could completely inhibit the growth of an EAC tumor inoculated in Balb/c mice after the first week, and the inhibition could be sustained for more than 21 days. The plasma pharmacokinetic study demonstrated that PTX/PECTGel could greatly decrease the systemic exposure of PTX, as confirmed by the rather low plasma concentration. On the other hand, the PTX concentration in normal tissues with the intratumoral injection of PTX/PECTGel was approximately 2 μg g-1, which was 3-10 times lower than that with the intraperitoneal or intratumoral injection of Taxol®, implying fewer off-target side effects. These data confirmed that the PTX/PECTGel combination local delivery system could vastly prolong the in vitro and in vivo paclitaxel release, enhance the local tumor inhibition effect and lower the systemic exposure and tissue distribution of paclitaxel. Hence, the "two into one" PTX/PECTGel system holds underlying value for regional cancer chemotherapy.
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Affiliation(s)
- Weiwei Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
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15
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Hockaday LA, Kang KH, Colangelo NW, Cheung PYC, Duan B, Malone E, Wu J, Girardi LN, Bonassar LJ, Lipson H, Chu CC, Butcher JT. Rapid 3D printing of anatomically accurate and mechanically heterogeneous aortic valve hydrogel scaffolds. Biofabrication 2012; 4:035005. [PMID: 22914604 DOI: 10.1088/1758-5082/4/3/035005] [Citation(s) in RCA: 371] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The aortic valve exhibits complex three-dimensional (3D) anatomy and heterogeneity essential for the long-term efficient biomechanical function. These are, however, challenging to mimic in de novo engineered living tissue valve strategies. We present a novel simultaneous 3D printing/photocrosslinking technique for rapidly engineering complex, heterogeneous aortic valve scaffolds. Native anatomic and axisymmetric aortic valve geometries (root wall and tri-leaflets) with 12-22 mm inner diameters (ID) were 3D printed with poly-ethylene glycol-diacrylate (PEG-DA) hydrogels (700 or 8000 MW) supplemented with alginate. 3D printing geometric accuracy was quantified and compared using Micro-CT. Porcine aortic valve interstitial cells (PAVIC) seeded scaffolds were cultured for up to 21 days. Results showed that blended PEG-DA scaffolds could achieve over tenfold range in elastic modulus (5.3±0.9 to 74.6±1.5 kPa). 3D printing times for valve conduits with mechanically contrasting hydrogels were optimized to 14 to 45 min, increasing linearly with conduit diameter. Larger printed valves had greater shape fidelity (93.3±2.6, 85.1±2.0 and 73.3±5.2% for 22, 17 and 12 mm ID porcine valves; 89.1±4.0, 84.1±5.6 and 66.6±5.2% for simplified valves). PAVIC seeded scaffolds maintained near 100% viability over 21 days. These results demonstrate that 3D hydrogel printing with controlled photocrosslinking can rapidly fabricate anatomical heterogeneous valve conduits that support cell engraftment.
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Affiliation(s)
- L A Hockaday
- Department of Biomedical Engineering, Cornell University, Ithaca, NY, USA
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16
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Tao Y, Ai L, Bai H, Liu X. Synthesis of pH-responsive photocrosslinked hyaluronic acid-based hydrogels for drug delivery. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26159] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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17
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Li L, Chu CC. Nitroxyl Radical Incorporated Electrospun Biodegradable Poly(ester Amide) Nanofiber Membranes. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 20:341-61. [DOI: 10.1163/156856209x412209] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Lei Li
- a Fiber and Polymer Science Program, Department of Fiber Science and Apparel Design, Cornell University, Ithaca, NY 14853-4401, USA
| | - Chih-Chang Chu
- b Fiber and Polymer Science Program, Department of Fiber Science and Apparel Design, Cornell University, Ithaca, NY 14853-4401, USA
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18
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Sharma V, Szymusiak M, Shen H, Nitsche LC, Liu Y. Formation of polymeric toroidal-spiral particles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:729-735. [PMID: 22077402 DOI: 10.1021/la203338v] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Compared to spherical matrices, particles with well-defined internal structure provide large surface to volume ratio and predictable release kinetics for the encapsulated payloads. We describe self-assembly of polymeric particles, whereby competitive kinetics of viscous sedimentation, diffusion, and cross-linking yield a controllable toroidal-spiral (T-S) structure. Precursor polymeric droplets are splashed through the surface of a less dense, miscible solution, after which viscous forces entrain the surrounding bulk solution into the sedimenting polymer drop to form T-S channels. The intricate structure forms because low interfacial tension between the two miscible solutions is dominated by viscous forces. The biocompatible polymer, poly(ethylene glycol) diacrylate (PEG-DA), is used to demonstrate the solidification of the T-S shapes at various configurational stages by UV-triggered cross-linking. The dimensions of the channels are controlled by Weber number during impact on the surface, and Reynolds number and viscosity ratio during subsequent sedimentation. We anticipate applications of the T-S particle in drug delivery, wherein diffusion through these T-S channels and the polymer matrix would offer parallel release pathways for molecules of different sizes. Polyphosphate, as a model macromolecule, is entrained in T-S particles during their formation. The in vitro release kinetics of polyphosphate from the T-S particles with various channel length and width is reported. In addition, self-assembly of T-S particles occurs in a single step under benign conditions for delicate macromolecules, and appears conducive to scaleup.
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Affiliation(s)
- Vishal Sharma
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, Illinois 60607, United States
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Song H, Chu CC. Synthesis and characterization of a new family of cationic amino acid-based poly(ester amide)s and their biological properties. J Appl Polym Sci 2011. [DOI: 10.1002/app.35512] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Deng M, Wu J, Reinhart-King CA, Chu CC. Biodegradable functional poly(ester amide)s with pendant hydroxyl functional groups: synthesis, characterization, fabrication and in vitro cellular response. Acta Biomater 2011; 7:1504-15. [PMID: 21187171 DOI: 10.1016/j.actbio.2010.12.026] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Revised: 12/20/2010] [Accepted: 12/20/2010] [Indexed: 11/17/2022]
Abstract
The synthesis of a new family of biodegradable α-amino acid poly(ester amide)s (AA-PEAs) with pendant benzyl ether groups and hydroxyl functional groups is reported. The synthetic strategy employs the ring opening reaction of O-benzyl-L-serine-N-carboxyanhydride with di-p-toluenesulfonic acid salts of bis-L-valine butane-1,4-diester, followed by solution polycondesation reactions with di-p-nitrophenyl sebacate in N,N-dimethylacetamide. Catalytic hydrogenation of the resulting benzyl ether protected AA-PEAs (PEA-Ser-Bzs) was performed to restore the hydroxyl functional groups in the functionalized AA-PEAs (PEA-Ser-OH). All resulting polymers were characterized by standard physico-chemical methods. The pendant hydroxyl groups in PEA-Ser-OH were used to fabricate AA-PEA-based gels via acrylation and photo-gelation. The cell-polymer interactions of PEA-Ser-Bz and PEA-Ser-OH were evaluated in terms of cell attachment and proliferation assay using bovine aortic endothelial cells (BAECs) as well as fibroblasts. The cell culture data indicated that the hydrophobic/hydrophilic characteristics (from contact angle data) of these AA-PEAs could significantly affect the interaction between BAECs and AA-PEA. This finding may provide additional possible applications for this new family of functionalized AA-PEA polymers.
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Affiliation(s)
- Mingxiao Deng
- Department of Fiber Science and Apparel Design, Cornell University, Ithaca, NY 14853, USA
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22
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23
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Pang X, Wu J, Reinhart-King C, Chu CC. Synthesis and characterization of functionalized water soluble cationic poly(ester amide)s. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24160] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Horwitz JA, Shum KM, Bodle JC, Deng M, Chu CC, Reinhart-King CA. Biological performance of biodegradable amino acid-based poly(ester amide)s: Endothelial cell adhesion and inflammation in vitro. J Biomed Mater Res A 2010; 95:371-80. [DOI: 10.1002/jbm.a.32858] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Pang X, Chu CC. Synthesis, characterization and biodegradation of functionalized amino acid-based poly(ester amide)s. Biomaterials 2010; 31:3745-54. [DOI: 10.1016/j.biomaterials.2010.01.027] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2009] [Accepted: 01/08/2010] [Indexed: 12/16/2022]
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26
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Tissue Adhesives as Active Implants. ACTIVE IMPLANTS AND SCAFFOLDS FOR TISSUE REGENERATION 2010. [DOI: 10.1007/8415_2010_48] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Deng M, Wu J, Reinhart-King CA, Chu CC. Synthesis and Characterization of Biodegradable Poly(ester amide)s with Pendant Amine Functional Groups and In Vitro Cellular Response. Biomacromolecules 2009; 10:3037-47. [DOI: 10.1021/bm9006437] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mingxiao Deng
- Department of Fiber Science and Apparel Design, and Department of Biomedical Engineering, Cornell University, Ithaca, New York 14853-4401
| | - Jun Wu
- Department of Fiber Science and Apparel Design, and Department of Biomedical Engineering, Cornell University, Ithaca, New York 14853-4401
| | - Cynthia A. Reinhart-King
- Department of Fiber Science and Apparel Design, and Department of Biomedical Engineering, Cornell University, Ithaca, New York 14853-4401
| | - Chih-Chang Chu
- Department of Fiber Science and Apparel Design, and Department of Biomedical Engineering, Cornell University, Ithaca, New York 14853-4401
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Sharifi S, Mirzadeh H, Imani M, Rong Z, Jamshidi A, Shokrgozar M, Atai M, Roohpour N. Injectable in situ forming drug delivery system based on poly(epsilon-caprolactone fumarate) for tamoxifen citrate delivery: Gelation characteristics, in vitro drug release and anti-cancer evaluation. Acta Biomater 2009; 5:1966-78. [PMID: 19328054 DOI: 10.1016/j.actbio.2009.02.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2008] [Revised: 02/03/2009] [Accepted: 02/04/2009] [Indexed: 11/19/2022]
Abstract
The present study deals with the preparation and characterization of an injectable and in situ forming drug delivery system based on photocrosslinked poly(epsilon-caprolactone fumarate) (PCLF) networks loaded with tamoxifen citrate (TC). Networks were made of PCLF macromers, a photoinitiation system (comprising initiator and accelerator) and the active ingredient N-vinyl-2-pyrrolidone (NVP) as a crosslinker and reactive diluent. Shrinkage behavior, equilibrium swelling and sol fraction ratios of photocrosslinked PCLF gels were determined as functions of NVP content. It was shown that the crosslinking is facilitated up to a certain concentration of NVP and most of NVP remained unreacted above this value. In vitro drug release, biocompatibility evaluation and activity against MCF-7 breast cancer cell line were also investigated. Accurate but simple bipartite expressions were also derived that enable rapid determination of effective diffusion coefficients of TC in photocrosslinked PCLF/NVP disks. Cytotoxicity assay showed that while the photocrosslinked PCLF network with optimum NVP content exhibits no significant cytotoxicity against MCF-7 and L929 cell lines, 40-60% of the MCF-7 cells were killed after incubation with TC-loaded devices.
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Affiliation(s)
- Shahriar Sharifi
- Biomedical Engineering Department, Amirkabir University of Technology, Tehran, Iran
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Chun C, Lee SM, Kim SY, Yang HK, Song SC. Thermosensitive poly(organophosphazene)–paclitaxel conjugate gels for antitumor applications. Biomaterials 2009; 30:2349-60. [DOI: 10.1016/j.biomaterials.2008.12.083] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2008] [Accepted: 12/29/2008] [Indexed: 10/21/2022]
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Guo K, Chu CC. Copolymers of unsaturated and saturated poly(ether ester amide)s: Synthesis, characterization, and biodegradation. J Appl Polym Sci 2008. [DOI: 10.1002/app.28826] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Guo K, Chu CC. Biodegradable and injectable paclitaxel‐loaded poly(ester amide)s microspheres: Fabrication and characterization. J Biomed Mater Res B Appl Biomater 2008; 89:491-500. [DOI: 10.1002/jbm.b.31239] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kai Guo
- Fiber and Polymer Science Program, Department of Fiber Science and Apparel Design, and Biomedical Engineering Program, Cornell University, Ithaca, New York 14853‐4401
| | - C. C. Chu
- Fiber and Polymer Science Program, Department of Fiber Science and Apparel Design, and Biomedical Engineering Program, Cornell University, Ithaca, New York 14853‐4401
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De Wit MA, Wang Z, Atkins KM, Mequanint K, Gillies ER. Syntheses, characterization, and functionalization of poly(ester amide)s with pendant amine functional groups. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.22915] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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