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Wang X, Wang WX. Tracking the Cellular Degradation of Silver Nanoparticles: Development of a Generic Kinetic Model. ACS NANO 2024; 18:13308-13321. [PMID: 38716827 DOI: 10.1021/acsnano.4c03032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Understanding the degradation of nanoparticles (NPs) after crossing the cell plasma membrane is crucial in drug delivery designs and cytotoxicity assessment. However, the key factors controlling the degradable kinetics remain unclear due to the absence of a quantification model. In this study, subcellular imaging of silver nanoparticles (AgNPs) was used to determine the intracellular transfer of AgNPs, and single particle ICP-MS was utilized to track the degradation process. A cellular kinetic model was subsequently developed to describe the uptake, transfer, and degradation behaviors of AgNPs. Our model demonstrated that the intracellular degradation efficiency of AgNPs was much higher than that determined by mimicking testing, and the degradation of NPs was highly influenced by cellular factors. Specifically, deficiencies in Ca or Zn primarily decreased the kinetic dissolution of NPs, while a Ca deficiency also resulted in the retardation of NP transfer. The biological significance of these kinetic parameters was strongly revealed. Our model indicated that the majority of internalized AgNPs dissolved, with the resulting ions being rapidly depurated. The release of Ag ions was largely dependent on the microvesicle-mediated route. By changing the coating and size of AgNPs, the model results suggested that size influenced the transfer of NPs into the degradation process, whereas coating affected the degradation kinetics. Overall, our developed model provides a valuable tool for understanding and predicting the impacts of the physicochemical properties of NPs and the ambient environment on nanotoxicity and therapeutic efficacy.
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Affiliation(s)
- Xiangrui Wang
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China
- Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
| | - Wen-Xiong Wang
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China
- Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
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2
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Feng Q, Zhou X, He C. NIR light-facilitated bone tissue engineering. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2024; 16:e1925. [PMID: 37632228 DOI: 10.1002/wnan.1925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/03/2023] [Accepted: 08/05/2023] [Indexed: 08/27/2023]
Abstract
In the last decades, near-infrared (NIR) light has attracted considerable attention due to its unique properties and numerous potential applications in bioimaging and disease treatment. Bone tissue engineering for bone regeneration with the help of biomaterials is currently an effective means of treating bone defects. As a controlled light source with deeper tissue penetration, NIR light can provide real-time feedback of key information on bone regeneration in vivo utilizing fluorescence imaging and be used for bone disease treatment. This review provides a comprehensive overview of NIR light-facilitated bone tissue engineering, from the introduction of NIR probes as well as NIR light-responsive materials, and the visualization of bone regeneration to the treatment of bone-related diseases. Furthermore, the existing challenges and future development directions of NIR light-based bone tissue engineering are also discussed. This article is categorized under: Diagnostic Tools > In Vivo Nanodiagnostics and Imaging Implantable Materials and Surgical Technologies > Nanotechnology in Tissue Repair and Replacement.
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Affiliation(s)
- Qian Feng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Biological Science and Medical Engineering, Donghua University, Shanghai, China
| | - Xiaojun Zhou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Biological Science and Medical Engineering, Donghua University, Shanghai, China
| | - Chuanglong He
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Biological Science and Medical Engineering, Donghua University, Shanghai, China
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3
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Lee YJ, Lee JS, Ajiteru O, Lee OJ, Lee JS, Lee H, Kim SW, Park JW, Kim KY, Choi KY, Hong H, Sultan T, Kim SH, Park CH. Biocompatible fluorescent silk fibroin bioink for digital light processing 3D printing. Int J Biol Macromol 2022; 213:317-327. [PMID: 35605719 DOI: 10.1016/j.ijbiomac.2022.05.123] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/15/2022] [Accepted: 05/17/2022] [Indexed: 11/28/2022]
Abstract
Chemically modified silk fibroin (SF) bioink has been used for three-dimensional (3D) bioprinting in tissue engineering because of its biocompatibility and printability. Also, fluorescent silk fibroin (FSF) from transgenic silkworms has been recently applied in biomedicine because of its fluorescence property. However, the fabrication of fluorescent hydrogel from FSF has not been elucidated. In this study, we showed the fabrication of a digital light processing (DLP) printable bioink from a chemically modified FSF. This bioink was fabricated by covalent conjugation of FSF and glycidyl methacrylate (GMA) and can be printed into various structures, such as the brain, ear, hand, lung, and internal organs. The physical properties of glycidyl methacrylated fluorescent silk fibroin (FSGMA) hydrogel was like the glycidyl methacrylated non-fluorescent silk fibroin (SGMA) hydrogel. The FSGMA hydrogel significantly retains its fluorescence property and has excellent biocompatibility. All these properties make FSGMA hydrogel a potent tool in encapsulated cell tracking and observing the scaffolds' degradation in vivo. This study suggested that our 3D DLP printable FSF bioink could play a promising role in the biomedical field.
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Affiliation(s)
- Young Jin Lee
- Nano-Bio Regenerative Medical Institute (NBRM), Hallym University, Chuncheon 24252, Republic of Korea
| | - Joong Seob Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Hallym University Sacred Heart Hospital, Anyang 14068, Republic of Korea
| | - Olatunji Ajiteru
- Nano-Bio Regenerative Medical Institute (NBRM), Hallym University, Chuncheon 24252, Republic of Korea
| | - Ok Joo Lee
- Nano-Bio Regenerative Medical Institute (NBRM), Hallym University, Chuncheon 24252, Republic of Korea
| | - Ji Seung Lee
- Nano-Bio Regenerative Medical Institute (NBRM), Hallym University, Chuncheon 24252, Republic of Korea
| | - Hanna Lee
- Nano-Bio Regenerative Medical Institute (NBRM), Hallym University, Chuncheon 24252, Republic of Korea
| | - Seong Wan Kim
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, Jeollabuk-do 55365, Republic of Korea
| | - Jong Woo Park
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, Jeollabuk-do 55365, Republic of Korea
| | - Kee Young Kim
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, Jeollabuk-do 55365, Republic of Korea
| | - Kyu Young Choi
- Depratment of Otorhinolaryngology-Head and Neck Surgery, Kangnam Sacred Heart Hospital, Seoul 07441, Republic of Korea
| | - Heesun Hong
- Nano-Bio Regenerative Medical Institute (NBRM), Hallym University, Chuncheon 24252, Republic of Korea
| | - Tipu Sultan
- Nano-Bio Regenerative Medical Institute (NBRM), Hallym University, Chuncheon 24252, Republic of Korea
| | - Soon Hee Kim
- Nano-Bio Regenerative Medical Institute (NBRM), Hallym University, Chuncheon 24252, Republic of Korea
| | - Chan Hum Park
- Nano-Bio Regenerative Medical Institute (NBRM), Hallym University, Chuncheon 24252, Republic of Korea; Depratment of Otorhinolaryngology-Head and Neck Surgery, Chuncheon Sacred Heart Hospital, Chuncheon 24253, Republic of Korea.
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4
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Li L, Gil CJ, Finamore TA, Evans CJ, Tomov ML, Ning L, Theus A, Kabboul G, Serpooshan V, Roeder RK. Methacrylate‐Modified Gold Nanoparticles Enable Noninvasive Monitoring of Photocrosslinked Hydrogel Scaffolds. ADVANCED NANOBIOMED RESEARCH 2022; 2. [DOI: 10.1002/anbr.202200022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Lan Li
- Department of Aerospace and Mechanical Engineering Bioengineering Graduate Program University of Notre Dame Notre Dame IN 46556 USA
- Notre Dame Center for Nanoscience and Technology (NDnano) Materials Science and Engineering Graduate Program University of Notre Dame Notre Dame IN 46556 USA
| | - Carmen J. Gil
- Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Tyler A. Finamore
- Department of Aerospace and Mechanical Engineering Bioengineering Graduate Program University of Notre Dame Notre Dame IN 46556 USA
| | - Connor J. Evans
- Department of Aerospace and Mechanical Engineering Bioengineering Graduate Program University of Notre Dame Notre Dame IN 46556 USA
| | - Martin L. Tomov
- Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Liqun Ning
- Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Andrea Theus
- Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Gabriella Kabboul
- Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Vahid Serpooshan
- Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology Atlanta GA 30332 USA
- Department of Pediatrics Emory University School of Medicine Emory University Atlanta GA 30322 USA
| | - Ryan K. Roeder
- Department of Aerospace and Mechanical Engineering Bioengineering Graduate Program University of Notre Dame Notre Dame IN 46556 USA
- Notre Dame Center for Nanoscience and Technology (NDnano) Materials Science and Engineering Graduate Program University of Notre Dame Notre Dame IN 46556 USA
- Department of Aerospace and Mechanical Engineering Bioengineering Graduate Program University of Notre Dame 148 Multidisciplinary Research Building Notre Dame IN 46556 USA
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5
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Cao G, He W, Fan Y, Li X. Exploring the match between the degradation of the ECM-based composites and tissue remodeling in a full-thickness abdominal wall defect model. Biomater Sci 2021; 9:7895-7910. [PMID: 34693955 DOI: 10.1039/d1bm01096d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The repair of abdominal wall defects is currently a clinical challenge. A naturally derived extracellular matrix (ECM) such as small intestine submucosa (SIS) has received great attention in abdominal wall defect repair because of its remarkable bioactivity, biodegradability and tissue regeneration. The match between material degradation and tissue remodeling is very important for the realization of ideal repair effectiveness. In this study, a near-infrared (NIR) fluorescent dye Cy5.5 NHS ester was used to label ECM-based (ECMB) composites consisting of SIS and chitosan/elastin electrospun nanofibers for monitoring material degradation. The tissue remodeling in the ECMB composites for a full-thickness abdominal wall defect repair was systematically investigated by a series of tests including wall thickness measurement, muscle regeneration analysis and angiogenesis assessment. The main findings were: (1) real-time and noninvasive degradation monitoring of the ECMB composites until complete degradation could be realized by chemical conjugation with a Cy5.5 NHS ester. (2) In a full-thickness abdominal wall defect model, the explant thickness could be used as an intuitional indicator for evaluating the tissue remodeling efficiency in the ECMB composites, and the accuracy of this indicator was verified by various examinations including collagen deposition, angiogenesis, and muscle regeneration. The present study could provide new insight into evaluating tissue repair effectiveness of the ECMB composites.
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Affiliation(s)
- Guangxiu Cao
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
| | - Wei He
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
| | - Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
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6
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Dong YC, Bouché M, Uman S, Burdick JA, Cormode DP. Detecting and Monitoring Hydrogels with Medical Imaging. ACS Biomater Sci Eng 2021; 7:4027-4047. [PMID: 33979137 PMCID: PMC8440385 DOI: 10.1021/acsbiomaterials.0c01547] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Hydrogels, water-swollen polymer networks, are being applied to numerous biomedical applications, such as drug delivery and tissue engineering, due to their potential tunable rheologic properties, injectability into tissues, and encapsulation and release of therapeutics. Despite their promise, it is challenging to assess their properties in vivo and crucial information such as hydrogel retention at the site of administration and in situ degradation kinetics are often lacking. To address this, technologies to evaluate and track hydrogels in vivo with various imaging techniques have been developed in recent years, including hydrogels functionalized with contrast generating material that can be imaged with methods such as X-ray computed tomography (CT), magnetic resonance imaging (MRI), optical imaging, and nuclear imaging systems. In this review, we will discuss emerging approaches to label hydrogels for imaging, review the advantages and limitations of these imaging techniques, and highlight examples where such techniques have been implemented in biomedical applications.
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Affiliation(s)
- Yuxi C Dong
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Mathilde Bouché
- Université de Lorraine, CNRS, L2CM UMR 7053, F-54000 Nancy, France
| | - Selen Uman
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jason A Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - David P Cormode
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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7
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Kambe Y, Yamaoka T. Initial immune response to a FRET-based MMP sensor-immobilized silk fibroin hydrogel in vivo. Acta Biomater 2021; 130:199-210. [PMID: 34087439 DOI: 10.1016/j.actbio.2021.05.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 05/20/2021] [Accepted: 05/20/2021] [Indexed: 12/26/2022]
Abstract
To investigate the initial immune response to biodegradable silk fibroin (SF) hydrogels in vivo, a Förster/fluorescence resonance energy transfer (FRET)-based sensor was developed to detect matrix metalloproteinase (MMP) activity (FRET-MMPS) and immobilized to SF hydrogel. FRET-MMPS immobilized to SF hydrogel in vitro displayed intra-molecular FRET more than inter-molecular FRET, and MMP activity was detected through a decrease in FRET signal intensity. Then, the SF hydrogel modified with FRET-MMPS was implanted into mice subcutaneously, and it was observed that the FRET signal intensity decreased significantly soon (< 3 h) after implantation. Although the intensity exhibited a sharp decrease toward 24 h post-implantation, histological evaluation proved that bulk-level hydrogel degradation, such as breakdown, was mainly caused by macrophages and foreign body giant cells on a timescale of weeks. These results indicated that, immediately upon implantation, active MMPs reached the SF hydrogel and began cleaving SF networks, which might result in the loosening of the networks and then enabled immune cells, such as macrophages, to start the bulk-level hydrogel degradation. The sensor clarified the initial immune response to SF hydrogels and will provide clues for designing the biodegradation behaviors of scaffolds for regenerative medicine. STATEMENT OF SIGNIFICANCE: Silk fibroin (SF) materials are degraded gradually by the immune response. Immune cells, such as macrophages, break down implanted SF materials on a timescale of weeks or months, but the initial (< 24 h) immune response to SF materials remains unclear. In this study, SF hydrogels modified with Förster/fluorescence resonance energy transfer (FRET)-based matrix metalloproteinase (MMP) sensors were implanted in mice and within 3 h post-implantation, the SF hydrogels were degraded by MMPs. Although this molecular-level biodegradation was not correlated with the hydrogel breakdown, the MMPs were likely to loosen the SF networks to enable immune cells to infiltrate and degrade the hydrogel. This is the first study to unveil the initial stage of immune response to biomaterials.
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8
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Nasrollahi F, Nazir F, Tavafoghi M, Hosseini V, Ali Darabi M, Paramelle D, Khademhosseini A, Ahadian S. Graphene Quantum Dots for Fluorescent Labeling of Gelatin‐Based Shear‐Thinning Hydrogels. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202000113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Fatemeh Nasrollahi
- Department of Bioengineering University of California-Los Angeles Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C-MIT) University of California-Los Angeles Los Angeles CA 90095 USA
- Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA 90024 USA
| | - Farzana Nazir
- Department of Bioengineering University of California-Los Angeles Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C-MIT) University of California-Los Angeles Los Angeles CA 90095 USA
- Department of Chemistry School of Natural Sciences National University of Science and Technology (NUST) Islamabad 44000 Pakistan
| | - Maryam Tavafoghi
- Department of Bioengineering University of California-Los Angeles Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C-MIT) University of California-Los Angeles Los Angeles CA 90095 USA
| | - Vahid Hosseini
- Department of Bioengineering University of California-Los Angeles Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C-MIT) University of California-Los Angeles Los Angeles CA 90095 USA
- Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA 90024 USA
| | - Mohammad Ali Darabi
- Department of Bioengineering University of California-Los Angeles Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C-MIT) University of California-Los Angeles Los Angeles CA 90095 USA
- Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA 90024 USA
| | - David Paramelle
- Institute of Materials Research and Engineering A*STAR (Agency for Science, Technology and Research) 2 Fusionopolis Way, Innovis #08-03 Singapore 138634 Singapore
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA 90024 USA
| | - Samad Ahadian
- Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA 90024 USA
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9
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Fuoco T, Cuartero M, Parrilla M, García-Guzmán JJ, Crespo GA, Finne-Wistrand A. Capturing the Real-Time Hydrolytic Degradation of a Library of Biomedical Polymers by Combining Traditional Assessment and Electrochemical Sensors. Biomacromolecules 2021; 22:949-960. [PMID: 33502851 PMCID: PMC7875459 DOI: 10.1021/acs.biomac.0c01621] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We have developed an innovative methodology to overcome the lack of techniques for real-time assessment of degradable biomedical polymers at physiological conditions. The methodology was established by combining polymer characterization techniques with electrochemical sensors. The in vitro hydrolytic degradation of a series of aliphatic polyesters was evaluated by following the molar mass decrease and the mass loss at different incubation times while tracing pH and l-lactate released into the incubation media with customized miniaturized electrochemical sensors. The combination of different analytical approaches provided new insights into the mechanistic and kinetics aspects of the degradation of these biomedical materials. Although molar mass had to reach threshold values for soluble oligomers to be formed and specimens' resorption to occur, the pH variation and l-lactate concentration were direct evidence of the resorption of the polymers and indicative of the extent of chain scission. Linear models were found for pH and released l-lactate as a function of mass loss for the l-lactide-based copolymers. The methodology should enable the sequential screening of degradable polymers at physiological conditions and has potential to be used for preclinical material's evaluation aiming at reducing animal tests.
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Affiliation(s)
- Tiziana Fuoco
- Department of Fibre and Polymer Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 56-58, SE 100-44 Stockholm, Sweden
| | - Maria Cuartero
- Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-100 44 Stockholm, Sweden
| | - Marc Parrilla
- Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-100 44 Stockholm, Sweden
| | - Juan José García-Guzmán
- Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-100 44 Stockholm, Sweden
| | - Gaston A Crespo
- Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-100 44 Stockholm, Sweden
| | - Anna Finne-Wistrand
- Department of Fibre and Polymer Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 56-58, SE 100-44 Stockholm, Sweden
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Kim SH, Park JH, Kwon JS, Cho JG, Park KG, Park CH, Yoo JJ, Atala A, Choi HS, Kim MS, Lee SJ. NIR fluorescence for monitoring in vivo scaffold degradation along with stem cell tracking in bone tissue engineering. Biomaterials 2020; 258:120267. [PMID: 32781325 PMCID: PMC7484145 DOI: 10.1016/j.biomaterials.2020.120267] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/22/2020] [Accepted: 07/29/2020] [Indexed: 12/26/2022]
Abstract
Stem cell-based tissue engineering has the potential to use as an alternative for autologous tissue grafts; however, the contribution of the scaffold degradation along with the transplanted stem cells to in vivo tissue regeneration remains poorly understood. Near-infrared (NIR) fluorescence imaging has great potential to monitor implants while avoiding autofluorescence from the adjacent host tissue. To utilize NIR imaging for in vivo monitoring of scaffold degradation and cell tracking, we synthesized 800-nm emitting NIR-conjugated PCL-ran-PLLA-ran-PGA (ZW-PCLG) copolymers with three different degradation rates and labeled 700-nm emitting lipophilic pentamethine (CTNF127) on the human placental stem cells (CT-PSCs). The 3D bioprinted hybrid constructs containing the CT-PSC-laden hydrogel together with the ZW-PCLG scaffolds demonstrate that NIR fluorescent imaging enables tracking of in vivo scaffold degradation and stem cell fate for bone regeneration in a rat calvarial bone defect model. This NIR-based monitoring system can be effectively utilized to study cell-based tissue engineering applications.
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Affiliation(s)
- Soon Hee Kim
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, 27157, USA; Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, 24252, Republic of Korea
| | - Ji Hoon Park
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, 27157, USA; Department of Molecular Science and Technology, Ajou University, Suwon, 443-759, Republic of Korea
| | - Jin Seon Kwon
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, 27157, USA; Department of Molecular Science and Technology, Ajou University, Suwon, 443-759, Republic of Korea
| | - Jae Gu Cho
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, 27157, USA; Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
| | - Kate G Park
- Department of Otolaryngology-Head and Neck Surgery, Korea University College of Medicine, Guro-dong 80 Guro-gu, Seoul, 152-703, Republic of Korea
| | - Chan Hum Park
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, 24252, Republic of Korea
| | - James J Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, 27157, USA
| | - Anthony Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, 27157, USA
| | - Hak Soo Choi
- Department of Otolaryngology-Head and Neck Surgery, Korea University College of Medicine, Guro-dong 80 Guro-gu, Seoul, 152-703, Republic of Korea.
| | - Moon Suk Kim
- Department of Molecular Science and Technology, Ajou University, Suwon, 443-759, Republic of Korea.
| | - Sang Jin Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, 27157, USA.
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11
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Liu W, Tawakol AP, Rudeen KM, Mieler WF, Kang-Mieler JJ. Treatment Efficacy and Biocompatibility of a Biodegradable Aflibercept-Loaded Microsphere-Hydrogel Drug Delivery System. Transl Vis Sci Technol 2020; 9:13. [PMID: 33117605 PMCID: PMC7571288 DOI: 10.1167/tvst.9.11.13] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 09/18/2020] [Indexed: 02/02/2023] Open
Abstract
Purpose To evaluate the in vivo treatment efficacy and biocompatibility of a biodegradable aflibercept-loaded microsphere-hydrogel drug delivery system (DDS) in a laser-induced choroidal neovascularization (CNV) rat model. Methods Two weeks after CNV induction, animals were randomly assigned into four experimental groups: (1) no treatment, (2) single intravitreal (IVT) injection of blank DDS, (3) bimonthly bolus IVT aflibercept injections, and (4) single IVT injection of aflibercept-DDS. CNV lesion sizes were monitored longitudinally using fluorescence angiography and multi-Otsu thresholding for 6 months. For safety and biocompatibility assessment, an additional three non-CNV animals received a blank DDS injection. Electroretinogram, intraocular pressure, and clinical ophthalmoscopic examinations were performed. Results The average lesion areas at week 0 (treatment intervention) were (1) 8693 ± 628 µm2 for no treatment, (2) 8261 ± 709 µm2 for blank DDS, (3) 10,368 ± 885 µm2 for bolus, and (4) 10,306 ± 1212 µm2 for aflibercept-DDS. For the nontreated groups, CNV lesion size increased by week 2 and remained increased throughout the study. The treated groups exhibited CNV size reduction after week 2 and remained for 6 months. At week 22, the average percent changes in CNV lesion area were +38.87% ± 7.08%, +34.19% ± 9.93%, -25.95% ± 3.51%, and -32.69% ± 5.40% for the above corresponding groups. No signs of chronic inflammation and other ocular abnormalities were found. Conclusions The aflibercept-DDS was effective in treating CNV lesions for 6 months and is safe, well tolerated, and biocompatible. Translational Relevance The proposed DDS is a promising system to reduce IVT injection frequency for anti-vascular endothelial growth factor treatment.
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Affiliation(s)
- Wenqiang Liu
- Biomedical Engineering, Illinois Institute of Technology, Chicago, IL, USA
| | | | - Kayla M Rudeen
- Biomedical Engineering, Illinois Institute of Technology, Chicago, IL, USA
| | - William F Mieler
- Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA
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12
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Liu W, Ou-Yang W, Zhang C, Wang Q, Pan X, Huang P, Zhang C, Li Y, Kong D, Wang W. Synthetic Polymeric Antibacterial Hydrogel for Methicillin-Resistant Staphylococcus aureus-Infected Wound Healing: Nanoantimicrobial Self-Assembly, Drug- and Cytokine-Free Strategy. ACS NANO 2020; 14:12905-12917. [PMID: 32946218 DOI: 10.1021/acsnano.0c03855] [Citation(s) in RCA: 124] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Antibacterial hydrogels are attracting extensive attention in soft tissue repair and regeneration, including bacteria-infected-wound healing. The abuse of antibiotics leads to drug resistance. Recent developments have demonstrated that the delivery of inorganic bactericidal agents in hydrogels can drive the wound healing process; however, this approach is complicated by external light stimuli, cytotoxicity, nondegradability, and sophisticated fabrication. Herein, an inherent antibacterial, bioresorbable hydrogel was developed by the spontaneous self-aggregation of amphiphilic, oxadiazole-group-decorated quaternary ammonium salts (QAS)-conjugated poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) (PCEC-QAS) micellar nanoantimicrobials for methicillin-resistant Staphylococcus aureus (MRSA)-infected cutaneous wound healing. The PCEC-QAS hydrogel showed a stable gel state within the temperature range of 5-50 °C and antibacterial efficacy against both Gram-negative and -positive bacteria in vitro and in vivo. Additionally, the PCEC-QAS hydrogel facilitated the cell spreading, proliferation, and migration without cytotoxicity. An in vivo degradation and skin defect healing study suggested the PCEC-QAS hydrogel was totally absorbed without local or systemic toxicity and could promote wound repair in the absence of drugs, cytokines, or cells. Significantly, this hydrogel accelerated the regeneration of a MRSA-infected full-thickness impaired skin wound by successfully reconstructing an intact and thick epidermis similar to normal mouse skin. Collectively, a self-assembling PCEC-QAS antibacterial hydrogel is a promising dressing material to promote skin regeneration and prevent bacterial infection without additional drugs, cells, light irradiation, or delivery systems, providing a simple but effective strategy for treating dermal wounds.
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Affiliation(s)
- Wenshuai Liu
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Wenbin Ou-Yang
- Structural Heart Disease Center, National Center for Cardiovascular Disease, China and Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Chao Zhang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Qiangsong Wang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Xiangbin Pan
- Structural Heart Disease Center, National Center for Cardiovascular Disease, China and Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Pingsheng Huang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Chuangnian Zhang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Yuejie Li
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Deling Kong
- College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Weiwei Wang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
- Biomedical Barriers Research Center, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
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13
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Li Q, Feng Z, Song H, Zhang J, Dong A, Kong D, Wang W, Huang P. 19F magnetic resonance imaging enabled real-time, non-invasive and precise localization and quantification of the degradation rate of hydrogel scaffolds in vivo. Biomater Sci 2020; 8:3301-3309. [PMID: 32356855 DOI: 10.1039/d0bm00278j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The degradation behavior of hydrogel scaffolds is closely related to the controlled release of bioactive agents and matching with the proliferative demands of newly generated tissues. However, the current methods cannot provide precise localization and track the degradation of individual hydrogel scaffolds in vivo, despite superficial or volumetric information. Here, for the first time, we presented the use of 19F magnetic resonance imaging (19F MRI) to precisely monitor the localization and quantify the degradation rate of implantable or injectable hydrogels in a real-time and noninvasive manner, with no interference of endogenous background signals and limitation of penetration depth. The total voxel and content in the region of interest (ROI) were linearly correlated to the injection amount, providing exact three-dimensional (3D) stereoscopic and two-dimensional (2D) anatomical information in the meantime. Moreover, a computational algorithm was established to present the real-time degradation rate in vivo as a function of time, which was implemented directly from the 19F MRI dataset. In addition, labelling with a zwitterionic 19F contrast agent demonstrated a facile and general applicability for multiple types of materials with no influence on their original gelation properties as well as 19F NMR properties in the hydrogel matrix. Therefore, this 19F MRI method offers a new approach to non-invasively track the degradation rate of hydrogel scaffolds in vivo in a precise localization and accurate quantification way, which will suffice the need for the evaluation of implants at deep depths in large animals or human objects.
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Affiliation(s)
- Qinghua Li
- Department of Polymer Science and Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
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14
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Dong Y, Zhuang H, Hao Y, Zhang L, Yang Q, Liu Y, Qi C, Wang S. Poly(N-Isopropyl-Acrylamide)/Poly(γ-Glutamic Acid) Thermo-Sensitive Hydrogels Loaded with Superoxide Dismutase for Wound Dressing Application. Int J Nanomedicine 2020; 15:1939-1950. [PMID: 32256070 PMCID: PMC7094004 DOI: 10.2147/ijn.s235609] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 02/24/2020] [Indexed: 12/18/2022] Open
Abstract
INTRODUCTION Chronic trauma repair is an important issue affecting people's healthy lives. Thermo-sensitive hydrogel is injectable in situ and can be used to treat large-area wounds. In addition, antioxidants play important roles in promoting wound repair. METHODS The purpose of this research was to prepare a novel thermo-sensitive hydrogel-poly(N-isopropyl-acrylamide)/poly(γ-glutamic acid) (PP) loaded with superoxide dismutase (SOD) to improve the effect for trauma treatment. The micromorphology of the hydrogel was observed by scanning electron microscope and the physical properties were measured. The biocompatibility of hydrogel was evaluated by MTT experiment, and the effect of hydrogel on skin wound healing was evaluated by in vivo histological staining. RESULTS Gelling behavior and differential scanning calorimeter outcomes showed that the PP hydrogels possessed thermo-sensitivity at physiological temperature and the phase transformation temperature was 28.2°C. The high swelling rate and good water retention were conducive to wound healing. The activity of SOD in vitro was up to 85% at 10 h, which was advantageous to eliminate the superoxide anion. MTT assay revealed that this hydrogel possessed good biocompatibility. Dressings of PP loaded with SOD (SOD-PP) had a higher wound closure rate than other treatments in vivo in diabetic rat model. DISCUSSION The SOD-PP thermo-sensitive hydrogels can effectively promote wound healing and have good application prospects for wound repair.
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Affiliation(s)
- Yunsheng Dong
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, The College of Life Science, Nankai University, Tianjin, People’s Republic of China
| | - Huahong Zhuang
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, The College of Life Science, Nankai University, Tianjin, People’s Republic of China
| | - Yan Hao
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, The College of Life Science, Nankai University, Tianjin, People’s Republic of China
| | - Lin Zhang
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, The College of Life Science, Nankai University, Tianjin, People’s Republic of China
| | - Qiang Yang
- Department of Spine Surgery, Tianjin Hospital, Tianjin, People’s Republic of China
| | - Yufei Liu
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, The College of Life Science, Nankai University, Tianjin, People’s Republic of China
| | - Chunxiao Qi
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, The College of Life Science, Nankai University, Tianjin, People’s Republic of China
| | - Shufang Wang
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, The College of Life Science, Nankai University, Tianjin, People’s Republic of China
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15
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Matuszek DB. The use of UV-induced fluorescence for the assessment of homogeneity of granular mixtures. OPEN CHEM 2019. [DOI: 10.1515/chem-2019-0058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThis paper presents the results of fluorescence-based analysis of homogeneity of five multicomponent granular mixtures. Analyses were performed using solutions of selected substances capable of emitting light following UV irradiation, namely Tinopal 0.03% and Rhodamine B 0.01%. Mixtures were spiked with the key component consisting of maize grains coated with the fluorescent solution. The tracer content was determined on the basis of computer image analysis, and the results were compared to those obtained using the traditional weighing method. On this basis, the proposed method was verified and assessed for applicability in estimating the homogeneity of mixtures comprised of 8, 10, 11, 14, and 20 components. The results suggest that both Tinopal and Rhodamine B may be used to estimate the tracer content in the tested mixtures.
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Affiliation(s)
- Dominika Barbara Matuszek
- Department of Biosystems Engineering, Faculty of Production Engineering and Logistics, Opole University of Technology, ul. Mikolajczyka 5, PL-45-271Opole, Poland
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16
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Finamore TA, Curtis TE, Tedesco JV, Grandfield K, Roeder RK. Nondestructive, longitudinal measurement of collagen scaffold degradation using computed tomography and gold nanoparticles. NANOSCALE 2019; 11:4345-4354. [PMID: 30793721 DOI: 10.1039/c9nr00313d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Biodegradable materials, such as collagen scaffolds, are used extensively in clinical medicine for tissue regeneration and/or as an implantable drug delivery vehicle. However, available methods to study biomaterial degradation are typically invasive, destructive, and/or non-volumetric. Therefore, the objective of this study was to investigate a new method for nondestructive, longitudinal, and volumetric measurement of collagen scaffold degradation. Gold nanoparticles (Au NPs) were covalently conjugated to collagen fibrils during scaffold preparation to enable contrast-enhanced imaging of collagen scaffolds. The X-ray attenuation of as-prepared scaffolds increased linearly with increased Au NP concentration such that ≥60 mM Au NPs provided sufficient contrast to measure scaffold degradation. Collagen scaffold degradation kinetics were measured to increase during in vitro enzymatic degradation in media with an increased concentration of collagenase. The scaffold degradation kinetics measured by micro-CT exhibited lower variability compared with gravimetric measurement and were validated by measurement of the release of Au NPs from the same samples by optical spectroscopy. Thus, Au NPs and CT synergistically enabled nondestructive, longitudinal, and volumetric measurement of collagen scaffold degradation.
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Affiliation(s)
- Tyler A Finamore
- Department of Aerospace and Mechanical Engineering, Bioengineering Graduate Program, University of Notre Dame, Notre Dame, IN 46556, USA..
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17
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Niu H, Li X, Li H, Fan Z, Ma J, Guan J. Thermosensitive, fast gelling, photoluminescent, highly flexible, and degradable hydrogels for stem cell delivery. Acta Biomater 2019; 83:96-108. [PMID: 30541703 PMCID: PMC6296825 DOI: 10.1016/j.actbio.2018.10.038] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 10/23/2018] [Accepted: 10/23/2018] [Indexed: 12/30/2022]
Abstract
Stem cell therapy is a promising approach to regenerate ischemic cardiovascular tissues yet experiences low efficacy. One of the major causes is inferior cell retention in tissues. Injectable cell carriers that can quickly solidify upon injection into tissues so as to immediately increase viscosity have potential to largely improve cell retention. A family of injectable, fast gelling, and thermosensitive hydrogels were developed for delivering stem cells into heart and skeletal muscle tissues. The hydrogels were also photoluminescent with low photobleaching, allowing for non-invasively tracking hydrogel biodistribution and retention by fluorescent imaging. The hydrogels were polymerized by N-isopropylacrylamide (NIPAAm), 2-hydroxyethyl methacrylate (HEMA), 1-vinyl-2-pyrrolidinone (VP), and acrylate-oligolactide (AOLA), followed by conjugation with hypericin (HYP). The hydrogel solutions had thermal transition temperatures around room temperature, and were readily injectable at 4 °C. The solutions were able to quickly solidify within 7 s at 37 °C. The formed gels were highly flexible possessing similar moduli as the heart and skeletal muscle tissues. In vitro, hydrogel fluorescence intensity decreased proportionally to weight loss. After being injected into thigh muscles, the hydrogel can be detected by an in vivo imaging system for 4 weeks. The hydrogels showed excellent biocompatibility in vitro and in vivo, and can stimulate mesenchymal stem cell (MSC) proliferation and paracrine effects. The fast gelling hydrogel remarkably increased MSC retention in thigh muscles compared to slow gelling collagen, and non-gelling PBS. These hydrogels have potential to efficiently deliver stem cells into tissues. Hydrogel degradation can be non-invasively and real-time tracked. STATEMENT OF SIGNIFICANCE: Low cell retention in tissues represents one of the major causes for limited therapeutic efficacy in stem cell therapy. A family of injectable, fast gelling, and thermosensitive hydrogels that can quickly solidify upon injection into tissues were developed to improve cell retention. The hydrogels were also photoluminescent, allowing for non-invasively and real-time tracking hydrogel biodistribution and retention by fluorescent imaging.
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Affiliation(s)
- Hong Niu
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH, USA
| | - Xiaofei Li
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH, USA
| | - Haichang Li
- Department of Surgery, The Ohio State University, Columbus, OH 43210, USA
| | - Zhaobo Fan
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH, USA
| | - Jianjie Ma
- Department of Surgery, The Ohio State University, Columbus, OH 43210, USA
| | - Jianjun Guan
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH, USA; Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA.
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18
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Chen J, Dong Q, Huang Y, Ma X, Fan T, Bian Z, O'Reilly Beringhs A, Lu X, Lei Y. Preparation, characterization and application of a protein hydrogel with rapid self‐healing and unique autofluoresent multi‐functionalities. J Biomed Mater Res A 2018; 107:81-91. [DOI: 10.1002/jbm.a.36534] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/15/2018] [Accepted: 08/16/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Jun Chen
- Department of Spine Surgery The First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
- Department of Biomedical Engineering University of Connecticut Storrs, Mansfield Connecticut 06269
- Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology Guangzhou Guangdong China
| | - Qiuchen Dong
- Department of Biomedical Engineering University of Connecticut Storrs, Mansfield Connecticut 06269
| | - Yikun Huang
- Department of Biomedical Engineering University of Connecticut Storrs, Mansfield Connecticut 06269
| | - Xiaoyu Ma
- Department of Biomedical Engineering University of Connecticut Storrs, Mansfield Connecticut 06269
| | - Tai‐Hsi Fan
- Department of Mechanical Engineering University of Connecticut Storrs, Mansfield Connecticut 06269
| | - Zichao Bian
- Department of Biomedical Engineering University of Connecticut Storrs, Mansfield Connecticut 06269
| | - André O'Reilly Beringhs
- Department of Pharmaceutical Sciences University of connecticut Storrs, Mansfield Connecticut 06269
| | - Xiuling Lu
- Department of Pharmaceutical Sciences University of connecticut Storrs, Mansfield Connecticut 06269
| | - Yu Lei
- Department of Biomedical Engineering University of Connecticut Storrs, Mansfield Connecticut 06269
- Department of Chemical and Biomolecular Engineering University of Connecticut Storrs, Mansfield Connecticut 06269
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19
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Kulkarni K, Hung J, Fulcher AJ, Chan AH, Hong A, Forsythe JS, Aguilar MI, Wise SG, Del Borgo MP. β3-Tripeptides Coassemble into Fluorescent Hydrogels for Serial Monitoring in Vivo. ACS Biomater Sci Eng 2018; 4:3843-3847. [DOI: 10.1021/acsbiomaterials.8b01065] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
| | - Juichien Hung
- Heart Research Institute, Newtown, New South Wales 2042, Australia
| | | | - Alex H.P. Chan
- Heart Research Institute, Newtown, New South Wales 2042, Australia
| | | | | | | | - Steven G. Wise
- Heart Research Institute, Newtown, New South Wales 2042, Australia
- Sydney Medical School, Sydney University, Sydney, New South Wales 2006, Australia
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Abstract
Strategies to refine the degradation behavior of polyester biomaterials, particularly to overcome the limitations of slow hydrolytic degradation, would broaden their utility. Herein, we examine the complexities of polyester degradation behavior, its assessment and strategies for refinement. The factors governing polyester degradation are strikingly complex. In addition to the half-life of the hydrolytically-labile bond, a series of interdependent material properties must be considered. Thus, methods used to characterize such material properties, both before and during degradation, must be carefully selected. Assessment of degradation behavior is further complicated by the variability of reported test protocols and the need for accelerated rather than real-time in vitro testing conditions. Ultimately, through better control of degradation behavior and correlation of in vitro, simulated degradation to that observed in vivo, the development of superior devices prepared with polyester biomaterials may be achieved.
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Affiliation(s)
- Lindsay N. Woodard
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Melissa A. Grunlan
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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21
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Li X, Zou B, Zhao N, Wang C, Du Y, Mei L, Wang Y, Ma S, Tian X, He J, Tong A, Zhou L, Han B, Guo G. Potent Anti-adhesion Barrier Combined Biodegradable Hydrogel with Multifunctional Turkish Galls Extract. ACS APPLIED MATERIALS & INTERFACES 2018; 10:24469-24479. [PMID: 29974740 DOI: 10.1021/acsami.8b10668] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xiaoling Li
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Bingwen Zou
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Na Zhao
- School of Pharmacy, Shihezi University, and Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi 832002, P. R. China
| | - Chao Wang
- National Engineering Research Center for Synthesis of Novel Rubber and Plastic Materials, Yanshan Branch, Beijing Research Institute of Chemical Industry, SINOPEC, Beijing 102500, P. R. China
| | - Ying Du
- National Engineering Research Center for Synthesis of Novel Rubber and Plastic Materials, Yanshan Branch, Beijing Research Institute of Chemical Industry, SINOPEC, Beijing 102500, P. R. China
| | - Lan Mei
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Yuelong Wang
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Shangzhi Ma
- School of Pharmacy, Shihezi University, and Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi 832002, P. R. China
| | - Xing Tian
- School of Pharmacy, Shihezi University, and Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi 832002, P. R. China
| | - Jun He
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Aiping Tong
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Liangxue Zhou
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Bo Han
- School of Pharmacy, Shihezi University, and Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi 832002, P. R. China
| | - Gang Guo
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
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Ma X, Li JQ, O'Connell C, Fan TH, Lei Y. Integrated Experimental and Modeling Study of Enzymatic Degradation Using Novel Autofluorescent BSA Microspheres. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:191-197. [PMID: 29256617 DOI: 10.1021/acs.langmuir.7b03057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Autofluorescent bovine serum albumin (BSA) hydrogel microspheres were prepared through the spray-drying of glutaraldehyde cross-linked BSA nanoparticles and then used for a proteinase K based degradation study in an aqueous solution. Experimental results and empirical models are presented to characterize the kinetics of BSA hydrogel microsphere degradation, as well as the accompanying release of synthesized fluorophore. The BSA gel degradation dynamics is primarily controlled by the concentration of proteinase K within the Tris buffer. The coupling of swelling dynamics and the transient distributions of fluorophore are traced by confocal microscopy. Models are developed based on the linear theory of elastic deformation coupled to enzyme and fluorophore transport. This study represents a fundamental investigation of the degradation and release kinetics of protein-based materials, which can potentially be applied for the dynamic and photostable tracking of relevant in vivo systems.
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Affiliation(s)
- Xiaoyu Ma
- Department of Biomedical Engineering, University of Connecticut , Storrs, Connecticut 06269-3247, United States
| | - Ji-Qin Li
- Department of Mechanical Engineering, University of Connecticut , Storrs, Connecticut 06269-3139, United States
| | - Christopher O'Connell
- Biotechnology-Bioservices Center, University of Connecticut , Storrs, Connecticut 06269-3149, United States
| | - Tai-Hsi Fan
- Department of Mechanical Engineering, University of Connecticut , Storrs, Connecticut 06269-3139, United States
| | - Yu Lei
- Department of Chemical & Biomolecular Engineering, University of Connecticut , Storrs, Connecticut 06269-3222, United States
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Banerjee SL, Hoskins R, Swift T, Rimmer S, Singha NK. A self-healable fluorescence active hydrogel based on ionic block copolymers prepared via ring opening polymerization and xanthate mediated RAFT polymerization. Polym Chem 2018. [DOI: 10.1039/c7py01883e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this work we report a facile method to prepare a fluorescence active self-healable hydrogel via the incorporation of fluorescence responsive ionic block copolymers (BCPs).
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Affiliation(s)
- Sovan Lal Banerjee
- Rubber Technology Centre
- Indian Institute of Technology
- Kharagpur-721302
- India
| | - Richard Hoskins
- School of Chemistry and Biosciences
- University of Bradford
- Bradford
- UK
| | - Thomas Swift
- School of Chemistry and Biosciences
- University of Bradford
- Bradford
- UK
| | - Stephen Rimmer
- School of Chemistry and Biosciences
- University of Bradford
- Bradford
- UK
| | - Nikhil K. Singha
- Rubber Technology Centre
- Indian Institute of Technology
- Kharagpur-721302
- India
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24
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Shen W, Chen X, Luan J, Wang D, Yu L, Ding J. Sustained Codelivery of Cisplatin and Paclitaxel via an Injectable Prodrug Hydrogel for Ovarian Cancer Treatment. ACS APPLIED MATERIALS & INTERFACES 2017; 9:40031-40046. [PMID: 29131563 DOI: 10.1021/acsami.7b11998] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The sustained release of both the hydrophilic drug and hydrophobic drug from one delivery system remains challenging in pharmaceutics and biomaterials science. The combination of hydrophilic cisplatin and hydrophobic paclitaxel (PTX) exhibits a clinical survival advantage compared with the individual drug therapy against various tumors such as ovarian cancer. In this study, a localized, long-term codelivery system of cisplatin and PTX was developed using an injectable and thermosensitive polymer-platinum(IV) conjugate hydrogel as the carrier. The thermosensitive Bi(mPEG-PLGA)-Pt(IV) (PtGel) conjugate was synthesized via covalently linking two mPEG-PLGA copolymers onto a Pt(IV) prodrug, and its concentrated aqueous solution exhibited a reversible sol-gel transition upon heating. Meanwhile, the core-corona micelles formed by the amphiphilic conjugates in water could serve as a reservoir for the solubilization of PTX, and thus an injectable binary drug-loaded hydrogel formulation was obtained. We also found that the introduction of PTX into the conjugate hydrogel decreased its sol-gel transition temperature and improved its gel strength. In vitro release experiments showed that both of the loaded drugs were released in a sustained manner for as long as 2.5 months, which was the longest combination delivery of these two drugs ever reported. In vitro cellular assays revealed that the dual-drug system exhibited a synergistic anticancer effect against ovarian cancer cells. Finally, using the SKOV-3 ovarian cancer xenograft mouse model, we demonstrated that a single injection of the PTX-loaded conjugate hydrogel system resulted in enhanced anticancer efficacy and significantly reduced the side effects, when compared with the multiple injections of the free drug combination.
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Affiliation(s)
- Wenjia Shen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
| | - Xiaobin Chen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
| | - Jiabin Luan
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
| | - Danni Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
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25
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Williams DF. * A Paradigm for the Evaluation of Tissue-Engineering Biomaterials and Templates. Tissue Eng Part C Methods 2017; 23:926-937. [PMID: 28762883 DOI: 10.1089/ten.tec.2017.0181] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Procedures for the evaluation of tissue-engineering processes, including those used for the testing of the relevant biomaterials, have not been developed in a logical manner. This perspectives paper discusses the limitations of testing regimes and recommends a very different approach. The main emphasis is on the existing methods for assessing the biological safety of these biomaterials, which, it is suggested, are irrelevant for evaluating materials that are intended to facilitate the generation of new tissue. An algorithm is proposed that sets out the pathway from materials design and characterization through to the production of a file that sets out full biocompatibility, functionality, and tissue incorporation data that are suitable for regulatory consideration for first-in-man experiences. Central to this algorithm is the choice of animal models and the real-time monitoring of the implanted construct performance.
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Affiliation(s)
- David F Williams
- Wake Forest Institute of Regenerative Medicine , Winston Salem, North Carolina
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26
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Wang L, Li B, Xu F, Li Y, Xu Z, Wei D, Feng Y, Wang Y, Jia D, Zhou Y. Visual in vivo degradation of injectable hydrogel by real-time and non-invasive tracking using carbon nanodots as fluorescent indicator. Biomaterials 2017; 145:192-206. [PMID: 28869865 DOI: 10.1016/j.biomaterials.2017.08.039] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 08/23/2017] [Accepted: 08/26/2017] [Indexed: 12/27/2022]
Abstract
Visual in vivo degradation of hydrogel by fluorescence-related tracking and monitoring is crucial for quantitatively depicting the degradation profile of hydrogel in a real-time and non-invasive manner. However, the commonly used fluorescent imaging usually encounters limitations, such as intrinsic photobleaching of organic fluorophores and uncertain perturbation of degradation induced by the change in molecular structure of hydrogel. To address these problems, we employed photoluminescent carbon nanodots (CNDs) with low photobleaching, red emission and good biocompatibility as fluorescent indicator for real-time and non-invasive visual in vitro/in vivo degradation of injectable hydrogels that are mixed with CNDs. The in vitro/in vivo toxicity results suggested that CNDs were nontoxic. The embedded CNDs in hydrogels did not diffuse outside in the absence of hydrogel degradation. We had acquired similar degradation kinetics (PBS-Enzyme) between gravimetric and visual determination, and established mathematical equation to quantitatively depict in vitro degradation profile of hydrogels for the predication of in vivo hydrogel degradation. Based on the in vitro data, we developed a visual platform that could quantitatively depict in vivo degradation behavior of new injectable biomaterials by real-time and non-invasive fluorescence tracking. This fluorescence-related visual imaging methodology could be applied to subcutaneous degradation of injectable hydrogel with down to 7 mm depth in small animal trials so far. This fluorescence-related visual imaging methodology holds great potentials for rational design and convenient in vivo screening of biocompatible and biodegradable injectable hydrogels in tissue engineering.
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Affiliation(s)
- Lei Wang
- Institute for Advanced Ceramics, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Baoqiang Li
- Institute for Advanced Ceramics, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China.
| | - Feng Xu
- MOE Key Laboratory of Biomedical Information Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, PR China; Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an, 710049, PR China
| | - Ying Li
- Sino-Russian Institute of Hard Tissue Development and Regeneration, The Second Affiliated Hospital of Harbin Medical University, Heilongjiang Academy of Medical Sciences, Harbin 150001, PR China
| | - Zheheng Xu
- Institute for Advanced Ceramics, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Daqing Wei
- Institute for Advanced Ceramics, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Yujie Feng
- Institute for Advanced Ceramics, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Yaming Wang
- Institute for Advanced Ceramics, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Dechang Jia
- Institute for Advanced Ceramics, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Yu Zhou
- Institute for Advanced Ceramics, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
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Ma X, Sun X, Chen J, Lei Y. Natural or Natural-Synthetic Hybrid Polymer-Based Fluorescent Polymeric Materials for Bio-imaging-Related Applications. Appl Biochem Biotechnol 2017; 183:461-487. [DOI: 10.1007/s12010-017-2570-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 07/31/2017] [Indexed: 10/19/2022]
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28
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Huang P, Song H, Zhang Y, Liu J, Cheng Z, Liang XJ, Wang W, Kong D, Liu J. FRET-enabled monitoring of the thermosensitive nanoscale assembly of polymeric micelles into macroscale hydrogel and sequential cognate micelles release. Biomaterials 2017; 145:81-91. [PMID: 28858720 DOI: 10.1016/j.biomaterials.2017.07.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 07/04/2017] [Accepted: 07/09/2017] [Indexed: 01/02/2023]
Abstract
Thermosensitive "micellar hydrogel" is prepared based on poly(ε-caprolactone-co- 1,4,8-trioxa[4.6]spiro-9-undecanone)-b-poly(ethylene glycol)- b-poly(ε-caprolactone- co-1,4,8-trioxa[4.6]spiro-9-undecanone) (PECT) triblock copolymer. Fluorescence resonance energy transfer (FRET) is adopted to explore its assembly (formation) and disassembly (degradation) mechanism within the range of 10 nm. Results prove that the thermosensitive non-covalent aggregation of micelles facilitates the hydrogel formation and the sustained shedding of cognate micelles induces the hydrogel degradation, during which polymers are steadily incorporated in micelles without any micelle disassembly or reassembly. It is confirmed that using multiple-tags based imaging technology, such as FRET imaging, the fate of macro biodegradable materials in vitro and in vivo can be followed at a precise nano even molecular level. Such an unique hydrogel composed of nothing more than PECT micelles can act as not only an injectable nanomedicine reservoir by subcutaneous or peri-tissue administration, but also an advanced "combo" macroscale platform for co-delivery of multi-modal therapeutic agents. Our findings also indicate that biological stimuli (e.g., temperature, enzymes)-induced non-covalent micelle self-assembly may provide us an effective strategy to prepare a macroscale device from nanoscale subunits.
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Affiliation(s)
- Pingsheng Huang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Huijuan Song
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Yumin Zhang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Jinjian Liu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Zhen Cheng
- Molecular Imaging Program at Stanford and Bio-X Program, Canary Center at Stanford for Cancer Early Detection, Stanford University, Stanford, CA 94305-5484, USA
| | - Xing-Jie Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China, Beijing 100190, China
| | - Weiwei Wang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
| | - Deling Kong
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Jianfeng Liu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
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29
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Dong Y, Jin G, Ji C, He R, Lin M, Zhao X, Li A, Lu TJ, Xu F. Non-invasive tracking of hydrogel degradation using upconversion nanoparticles. Acta Biomater 2017; 55:410-419. [PMID: 28428038 DOI: 10.1016/j.actbio.2017.04.016] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 04/13/2017] [Accepted: 04/13/2017] [Indexed: 12/11/2022]
Abstract
Tracking the distribution and degradation of hydrogels in vivo is important for various applications including tissue engineering and drug delivery. Among various imaging modalities, fluorescence imaging has attracted intensive attention due to their high sensitivity, low cost and easy operation. Particularly, upconversion nanoparticles (UCNPs) that emit visible lights upon near-infrared (NIR) light excitation as tracking probes are promising in deciphering the fate of hydrogels after transplantation. Herein, we reported a facile and non-invasive in vivo hydrogel tracking method using UCNPs, where the degradation of hydrogels was determined using the decrease in fluorescence intensity from the UCNPs encapsulated in the hydrogels. We found that the change in the fluorescence intensity from the UCNPs was well consistent with that of the fluorescein isothiocyanate (FITC) covalently conjugated to hydrogels and also with the weight change of the hydrogels, suggesting the accuracy of the UCNPs in tracking the degradation of hydrogels. Furthermore, the in vivo fluorescence signals were only observed from the UCNPs instead of FITC after implantation for 7days due to the deep tissue penetration of UCNPs, demonstrating the capability of UCNPs in longitudinal, consecutive and non-invasive monitoring the in vivo degradation of hydrogels without causing any damage to the major organs (heart, lung, liver and kidney) of model rats. This study thus paves the way for monitoring the in vivo behaviors of biomimetic materials via deep tissue imaging with great clinical translation potentials. STATEMENT OF SIGNIFICANCE Long-term noninvasive in vivo tracking of the distribution and degradation of biodegradable hydrogels using fluorescent probes is important in tissue regeneration and drug delivery. Unlike the widely used fluorescent dyes and quantum dots (QDs) that suffer from photobleaching and undesired toxicity, upconversion nanoparticles (UCNPs) with high stability, deep tissue penetration as tracking probes are promising in deciphering the fate of hydrogels after transplantation. Herein, we reported a noninvasive in vivo hydrogel tracking method using UCNPs and found that the fluorescence intensity change from the UCNPs was well consistent with the weight change of the hydrogels, suggesting the accuracy of UCNPs in tracking hydrogel degradation. This study provides inspirations on developing advanced NIR light regulated probes with great clinical translation potentials.
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Dong Y, Lin M, Jin G, Il Park Y, Qiu M, Zhao Y, Yang H, Li A, Jian Lu T. Fabrication of fluorescent composite hydrogel using in situ synthesis of upconversion nanoparticles. NANOTECHNOLOGY 2017; 28:175702. [PMID: 28357993 DOI: 10.1088/1361-6528/aa6564] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Fluorescent composite hydrogels have found widespread applications, especially in spatial and temporal monitoring of in vivo hydrogel behaviors via the emitting optical signal. However, most existing fluorescent composite hydrogels suffer from limited capability of deep tissue imaging and complicated fabrication routes. We herein report a facile method for fabricating fluorescent composite hydrogels based on the in situ synthesis of NaYF4:Yb, Er upconversion nanoparticles (UCNPs). This approach employs polyacrylamide (PAAm) hydrogels as a template, where the interconnected pores within the hydrogel act as nanoreactors to confine the growth of nanocrystals. We then obtained a fluorescent composite hydrogel exhibiting upconversion fluorescence and enhanced mechanical properties. The fluorescence spectra show that the fluorescence intensity decreases with decreasing size of the UCNPs. We investigated the relationship between the optical properties of the fluorescent composite hydrogel and the incorporated UCNPs based on the morphology, size, and distribution of the UCNPs by using scanning electron microscopy and transmission electron microscopy. In addition, we demonstrated the applicability of the synthesized hydrogel for deep tissue imaging through an in vitro tissue penetration experiment. Compressive and dynamic rheological testing reveal enhanced mechanical properties with increasing UCNP concentration. The fabricated upconversion fluorescent composite hydrogel may pave the way for monitoring the in vivo behavior of biomimetic materials via deep tissue imaging.
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Affiliation(s)
- Yuqing Dong
- State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
- The MOE Key Laboratory of Biomedical Information Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Min Lin
- The MOE Key Laboratory of Biomedical Information Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Guorui Jin
- The MOE Key Laboratory of Biomedical Information Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Yong Il Park
- School of Chemical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Mushu Qiu
- The MOE Key Laboratory of Biomedical Information Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Ying Zhao
- The MOE Key Laboratory of Biomedical Information Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Hui Yang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
| | - Ang Li
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Tian Jian Lu
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
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31
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Dong X, Chen H, Qin J, Wei C, Liang J, Liu T, Kong D, Lv F. Thermosensitive porphyrin-incorporated hydrogel with four-arm PEG-PCL copolymer (II): doxorubicin loaded hydrogel as a dual fluorescent drug delivery system for simultaneous imaging tracking in vivo. Drug Deliv 2017; 24:641-650. [PMID: 28282993 PMCID: PMC8241078 DOI: 10.1080/10717544.2017.1289570] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Visualization of a drug delivery system could reveal the pharmacokinetic properties, which is essential for the design of a novel drug delivery system. In vivo optical imaging offers an advanced tool to monitor the drug release process and the therapeutic effect by the combination of fluorescence imaging and bioluminescence imaging. Multispectral fluorescence imaging can separate the drug and the carrier without interference. Herein, a dual fluorescent anti-tumor drug delivery system was monitored with the doxorubicin-loaded hydrogel to further explore the application of the porphyrin-incorporated hydrogel with four-arm PEG-PCL copolymer as a drug carrier, based on the beneficial fluorescence and good biocompatibility of the porphyrin incorporated hydrogel. Using nude mice bearing luciferase expressed hepatic tumor as models, the whole process from the drug delivery to the tumor therapeutic effects were real time visualized simultaneously after administration at interval from 0 to 18 d. The imaging results suggest that the fluorescence signals of the drug and the carrier can be separated and unmixed from the drug-loaded hydrogel successfully, avoiding the interference of the fluorescence signals. The tumor growth or inhibition can be real time tracked and analyzed quantitatively by bioluminescence imaging. Noninvasive continuous tracking the in vivo drug delivery process simultaneously is a potential trend for the precise drug delivery and treatment.
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Affiliation(s)
- Xia Dong
- a Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College , Tianjin , PR China and
| | - Hongli Chen
- b School of Life Science and Technology, Xinxiang Medical University , Xinxiang , Henan , PR China
| | - Jingwen Qin
- b School of Life Science and Technology, Xinxiang Medical University , Xinxiang , Henan , PR China
| | - Chang Wei
- a Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College , Tianjin , PR China and
| | - Jie Liang
- a Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College , Tianjin , PR China and
| | - Tianjun Liu
- a Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College , Tianjin , PR China and
| | - Deling Kong
- a Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College , Tianjin , PR China and
| | - Feng Lv
- a Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College , Tianjin , PR China and
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32
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Guan Z, Yang L, Wang W, Zhang J, Liu J, Ren C, Wang S, Gao Y, Huang P. Thermosensitive micellar hydrogel for enhanced anticancer therapy through redox modulation mediated combinational effects. RSC Adv 2017. [DOI: 10.1039/c7ra06357a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Illustration of the design and action pathway of the PECT/DOX micelle and PECT/ZnPP micelle in situ formed thermosensitive micellar hydrogel.
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Affiliation(s)
- Zhiyu Guan
- Department of Thoracic Surgery
- The Second Hospital of Tianjin Medical University
- Tianjin 300211
- P. R. China
| | - Lijun Yang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine
- Institute of Radiation Medicine
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Tianjin 300192
- P. R. China
| | - Weiwei Wang
- Tianjin Key Laboratory of Biomaterial Research
- Institute of Biomedical Engineering
- Chinese Academy of Medical Sciences and Peking Union Medical College
- Tianjin 300192
- P. R. China
| | - Jun Zhang
- Department of Thoracic Surgery
- The Second Hospital of Tianjin Medical University
- Tianjin 300211
- P. R. China
| | - Jinjian Liu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine
- Institute of Radiation Medicine
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Tianjin 300192
- P. R. China
| | - Chunhua Ren
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine
- Institute of Radiation Medicine
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Tianjin 300192
- P. R. China
| | - Shuo Wang
- Department of Thoracic Surgery
- The Second Hospital of Tianjin Medical University
- Tianjin 300211
- P. R. China
| | - Yang Gao
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine
- Institute of Radiation Medicine
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Tianjin 300192
- P. R. China
| | - Pingsheng Huang
- Tianjin Key Laboratory of Biomaterial Research
- Institute of Biomedical Engineering
- Chinese Academy of Medical Sciences and Peking Union Medical College
- Tianjin 300192
- P. R. China
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33
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Liu F, Sun Y, Kang C, Zhu H. Pegylated Drug Delivery Systems: From Design to Biomedical Applications. ACTA ACUST UNITED AC 2016. [DOI: 10.1142/s1793984416420022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Pegylation, as a simple procedure to attach hydrophilic polyethylene glycol (PEG) onto therapeutic molecule or drug carriers has been utilized widely to deliver small molecules, proteins and peptides. It was first reported in 1970s by Dr. Frank Davis of Rutgers University and Dr. Abuchowsky in the studies of PEG modified albumin and catalase. The significance of this method at that time was able to successfully modify the enzyme with better hydrophilicity but also keep the enzymatic activity. The employment of PEG has provided superior stability of drug delivery systems (DDS) and enhanced the circulation time in vivo. Simple conjugation of PEG chains with various molecular weights enables the possibility to regulate the properties of desired DDS and led to important contribution in targeting therapy and diagnosis. Pegylation has been reported to be able to protect peptides by shielding antigenic epitopes from reticuloendothelial (RES) clearance and avoid enzymes being recognized by immune system and avoid early degradation. In addition, utilization of PEG in DDS are reported with enhanced delivery efficiency, prolonged circulation time and improved stability, especially active enzymes and peptides drug delivery. In this paper, we will conclude current studies about Pegylated DDS and their biomedical applications from both in vitro and in vivo studies.
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Affiliation(s)
- Fei Liu
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL 35209, USA
| | - Yuan Sun
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA
| | - Chen Kang
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, IA 52242, USA
| | - Hongyan Zhu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, Jiangsu, P. R. China
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Dong X, Wei C, Chen H, Qin J, Liang J, Kong D, Liu T, Lv F. Real-Time Imaging Tracking of a Dual Fluorescent Drug Delivery System Based on Zinc Phthalocyanine-Incorporated Hydrogel. ACS Biomater Sci Eng 2016; 2:2001-2010. [DOI: 10.1021/acsbiomaterials.6b00403] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xia Dong
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, PR China
| | - Chang Wei
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, PR China
| | - Hongli Chen
- School
of Life Science and Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Jingwen Qin
- School
of Life Science and Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Jie Liang
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, PR China
| | - Deling Kong
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, PR China
| | - Tianjun Liu
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, PR China
| | - Feng Lv
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, PR China
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Xu Q, He C, Ren K, Xiao C, Chen X. Thermosensitive Polypeptide Hydrogels as a Platform for ROS-Triggered Cargo Release with Innate Cytoprotective Ability under Oxidative Stress. Adv Healthc Mater 2016; 5:1979-90. [PMID: 27283999 DOI: 10.1002/adhm.201600292] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Revised: 04/29/2016] [Indexed: 01/10/2023]
Abstract
Reactive oxygen species (ROS) play important roles in cell signaling pathways, while increased production of ROS may disrupt cellular homeostasis, giving rise to a series of diseases. Therefore, materials responding to ROS at physiological levels are of great significance. In this work, a novel ROS-responsive thermogelling hydrogel based on methoxy poly(ethylene glycol)-poly(l-methionine) diblock copolymers is designed and synthesized. The mechanism for solution-to-hydrogel (sol-gel) phase transitions of the copolymer aqueous solutions is studied. Incubation of the hydrogels in the presence of peroxide hydrogen (H2 O2 ) displays a H2 O2 -responsive degradation process. The hydrogels containing Rhodamine 6G exhibit sustained release profiles that are accelerated in response to H2 O2 . An innate cytoprotective ability of the hydrogels is revealed by incubation of L929 cells with the hydrogels under oxidative stress, which reduces H2 O2 -mediated cell death. ROS produced by activated macrophages can accelerate the erosion of the hydrogel, suggesting that the hydrogel is also responsive to pathological level of H2 O2 . Meanwhile, the poly(l-methionine)-based hydrogels degrade within 6 weeks after subcutaneous injection into rats, with a good biocompatibility in vivo. Overall, the injectable, ROS-responsive hydrogels may serve as promising platforms for sustained drug delivery and cell-based therapies in treatment of diseases with local oxidative stress.
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Affiliation(s)
- Qinghua Xu
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 P. R. China
- University of Chinese Academy of Sciences; Beijing 100039 P. R. China
| | - Chaoliang He
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 P. R. China
| | - Kaixuan Ren
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 P. R. China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 P. R. China
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Xu S, Fan H, Yin L, Zhang J, Dong A, Deng L, Tang H. Thermosensitive hydrogel system assembled by PTX-loaded copolymer nanoparticles for sustained intraperitoneal chemotherapy of peritoneal carcinomatosis. Eur J Pharm Biopharm 2016; 104:251-9. [PMID: 27185379 DOI: 10.1016/j.ejpb.2016.05.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 04/26/2016] [Accepted: 05/13/2016] [Indexed: 11/28/2022]
Abstract
Intraperitoneal (IP) chemotherapy is a preferable treatment option for peritoneal carcinomatosis of malignancies by delivering chemotherapeutic drugs into the abdominal cavity. A persistent major challenge in IP chemotherapy is the need to provide effective drug concentration in the peritoneal cavity for an extended period of time. In the present work, the thermosensitive hydrogel system (PTX/PECT(gel)) assembled by PTX (paclitaxel)-loaded amphiphilic copolymer (PECT, 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)) nanoparticles was developed for sustained IP chemotherapy of peritoneal carcinomatosis model. Cytotoxicity assay indicated that PECT hydrogel was biocompatible with very low cytotoxicity and PTX/PECT(gel) had enhanced cytotoxicity than free PTX. In vivo toxicity study demonstrated the biocompatibility and biosafety of PECT hydrogel as an IP chemotherapy carrier. The fluorescence imaging method was employed to monitor the intraperitoneal degradation of PECT hydrogel by labeling PECT with rhodamine B. PECT hydrogel with the dose of 200μL showed about 8days' retention time and most of the injected hydrogel was located in the intestine. The anti-tumor efficacy study was carried out in mice bearing CT26 intraperitoneal ascites fluid as colorectal peritoneal carcinomatosis model. The result showed that intraperitoneal administration of PTX/PECT(gel) could effectively suppress growth and metastasis of CT26 peritoneal carcinomatosis in vivo, compared with Taxol® group. The pharmacokinetic studies demonstrated that PTX/PECT(gel) could improve the bioavailability of PTX by being formulated in PECT hydrogel. Overall, sustained drug concentration at peritoneal levels in combination with drug in the form of nanoparticle contributes to the enhanced anti-tumor efficacy. Thus, our results suggested that PTX/PECT(gel) may have great potential applications in IP chemotherapy.
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Affiliation(s)
- Shuxin Xu
- Department of Polymer Science and Technology and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, China
| | - Hongxia Fan
- Tianjin Life Science Research Center and School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Li Yin
- Department of Polymer Science and Technology and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, China
| | - Jianhua Zhang
- Department of Polymer Science and Technology and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, China
| | - Anjie Dong
- Department of Polymer Science and Technology and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, China
| | - Liandong Deng
- Department of Polymer Science and Technology and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, China.
| | - Hua Tang
- Tianjin Life Science Research Center and School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China.
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Dong X, Wei C, Liu T, Lv F, Qian Z. Real-Time Fluorescence Tracking of Protoporphyrin Incorporated Thermosensitive Hydrogel and Its Drug Release in Vivo. ACS APPLIED MATERIALS & INTERFACES 2016; 8:5104-13. [PMID: 26848506 DOI: 10.1021/acsami.5b11493] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xia Dong
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, People’s Republic of China
| | - Chang Wei
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, People’s Republic of China
| | - Tianjun Liu
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, People’s Republic of China
| | - Feng Lv
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, People’s Republic of China
| | - Zhiyong Qian
- State Key Laboratory of Biotherapy/Collaborative Innovation
Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, People’s Republic of China
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38
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Li H, Zhao L, Chen XD, Mercadé-Prieto R. Swelling of whey and egg white protein hydrogels with stranded and particulate microstructures. Int J Biol Macromol 2016; 83:152-9. [DOI: 10.1016/j.ijbiomac.2015.11.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 11/05/2015] [Accepted: 11/06/2015] [Indexed: 01/26/2023]
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Ma X, Sun X, Hargrove D, Chen J, Song D, Dong Q, Lu X, Fan TH, Fu Y, Lei Y. A Biocompatible and Biodegradable Protein Hydrogel with Green and Red Autofluorescence: Preparation, Characterization and In Vivo Biodegradation Tracking and Modeling. Sci Rep 2016; 6:19370. [PMID: 26813916 PMCID: PMC4728389 DOI: 10.1038/srep19370] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 11/02/2015] [Indexed: 01/09/2023] Open
Abstract
Because of its good biocompatibility and biodegradability, albumins such as bovine serum albumin (BSA) and human serum albumin (HSA) have found a wide range of biomedical applications. Herein, we report that glutaraldehyde cross-linked BSA (or HSA) forms a novel fluorescent biological hydrogel, exhibiting new green and red autofluorescence in vitro and in vivo without the use of any additional fluorescent labels. UV-vis spectra studies, in conjunction with the fluorescence spectra studies including emission, excitation and synchronous scans, indicated that three classes of fluorescent compounds are presumably formed during the gelation process. SEM, FTIR and mechanical tests were further employed to investigate the morphology, the specific chemical structures and the mechanical strength of the as-prepared autofluorescent hydrogel, respectively. Its biocompatibility and biodegradability were also demonstrated through extensive in vitro and in vivo studies. More interestingly, the strong red autofluorescence of the as-prepared hydrogel allows for conveniently and non-invasively tracking and modeling its in vivo degradation based on the time-dependent fluorescent images of mice. A mathematical model was proposed and was in good agreement with the experimental results. The developed facile strategy to prepare novel biocompatible and biodegradable autofluorescent protein hydrogels could significantly expand the scope of protein hydrogels in biomedical applications.
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Affiliation(s)
- Xiaoyu Ma
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Xiangcheng Sun
- Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Derek Hargrove
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Jun Chen
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Donghui Song
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Qiuchen Dong
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Xiuling Lu
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Tai-Hsi Fan
- Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Youjun Fu
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
| | - Yu Lei
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
- Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, CT 06269, USA
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40
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Non-invasive in vitro and in vivo monitoring of degradation of fluorescently labeled hyaluronan hydrogels for tissue engineering applications. Acta Biomater 2016; 30:188-198. [PMID: 26621694 DOI: 10.1016/j.actbio.2015.11.053] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 11/04/2015] [Accepted: 11/23/2015] [Indexed: 12/25/2022]
Abstract
Tracking of degradation of hydrogels-based biomaterials in vivo is very important for rational design of tissue engineering scaffolds that act as delivery carriers for bioactive factors. During the process of tissue development, an ideal scaffold should remodel at a rate matching with scaffold degradation. To reduce amount of animals sacrificed, non-invasive in vivo imaging of biomaterials is required which relies on using of biocompatible and in situ gel forming compounds carrying suitable imaging agents. In this study we developed a method of in situ fabrication of fluorescently labeled and injectable hyaluronan (HA) hydrogel based on one pot sequential use of Michael addition and thiol-disulfide exchange reactions for the macromolecules labeling and cross-linking respectively. Hydrogels with different content of HA were prepared and their enzymatic degradation was followed in vitro and in vivo using fluorescence multispectral imaging. First, we confirmed that the absorbance of the matrix-linked near-IR fluorescent IRDye® 800CW agent released due to the matrix enzymatic degradation in vitro matched the amount of the degraded hydrogel measured by classical gravimetric method. Secondly, the rate of degradation was inversely proportional to the hydrogel concentration and this structure-degradation relationship was similar for both in vitro and in vivo studies. It implies that the degradation of this disulfide cross-linked hyaluronan hydrogel in vivo can be predicted basing on the results of its in vitro degradation studies. The compliance of in vitro and in vivo methods is also promising for the future development of predictive in vitro tissue engineering models. STATEMENT OF SIGNIFICANCE The need for engineered hydrogel scaffolds that deliver bioactive factors to endogenous progenitor cells in vivo via gradual matrix resorption and thus facilitate tissue regeneration is increasing with the aging population. Importantly, scaffold should degrade at a modest rate that will not be too fast to support tissue growth nor too slow to provide space for tissue development. The present work is devoted to longitudinal tracking of a hydrogel material in vivo from the time of its implantation to the time of complete resorption without sacrificing animals. The method demonstrates correlation of resorption rates in vivo and in vitro for hydrogels with varied structural parameters. It opens the possibility to develop predictive in vitro models for tissue engineered scaffolds and reduce animal studies.
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41
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Hu J, Guo J, Xie Z, Shan D, Gerhard E, Qian G, Yang J. Fluorescence imaging enabled poly(lactide-co-glycolide). Acta Biomater 2016; 29:307-319. [PMID: 26463014 PMCID: PMC4681614 DOI: 10.1016/j.actbio.2015.10.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 09/28/2015] [Accepted: 10/09/2015] [Indexed: 01/31/2023]
Abstract
Fluorescent biomaterials have attracted significant research efforts in the past decades. Herein, we report a new series of biodegradable, fluorescence imaging-enabled copolymers, biodegradable photoluminescent poly(lactide-co-glycolide) (BPLP-co-PLGA). Photoluminescence characterization shows that BPLP-co-PLGA solutions, films and nanoparticles all exhibit strong, tunable and stable photoluminescence. By adjusting the molar ratios of L-lactide (LA)/glycolide (GA) and (LA+GA)/BPLP, full degradation of BPLP-co-PLGA can be achieved in 8-16 weeks. The fluorescence decay behavior of BPLP-co-PLGA can be used for non-invasive monitoring of material degradation. In vitro cytotoxicity and in vivo foreign body response evaluations demonstrate that BPLP-co-PLGA exhibits similar biocompatibility to poly(lactide-co-glycolide) (PLGA). The imaging-enabled BPLP-co-PLGA was fabricated into porous scaffolds whose degradation can be monitored through non-invasive imaging and nanoparticles that show theranostic potential demonstrated by fluorescent cellular labeling, imaging and sustained 5-fluorouracil delivery. The development of inherently fluorescent PLGA copolymers is expected to impact the use of already widely accepted PLGA polymers for applications where fluorescent properties are highly desired but limited by the conventional use of cytotoxic quantum dots and photobleaching organic dyes. STATEMENT OF SIGNIFICANCE This manuscript describes a novel strategy of conferring intrinsic photoluminescence to the widely used biodegradable polymers, poly(lactide-co-glycolide) without introducing any cytotoxic quantum dots or photo-bleaching organic dyes, which may greatly expand the applications of these polymers in where fluorescent properties are highly desired. Given the already significant impact generated by the use of PLGA and alike, this work contributes to fluorescence chemistry and new functional biomaterial design and will potentially generate significant impact on many fields of applications such as tissue engineering, molecular imaging and labeling, and drug delivery.
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Affiliation(s)
- Jianqing Hu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China; Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of The Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Jinshan Guo
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of The Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Zhiwei Xie
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of The Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Dingying Shan
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of The Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Ethan Gerhard
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of The Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Guoying Qian
- Zhejiang Provincial Top Key Discipline of Bioengineering, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China
| | - Jian Yang
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of The Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA.
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42
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Lei K, Ma Q, Yu L, Ding J. Functional biomedical hydrogels for in vivo imaging. J Mater Chem B 2016; 4:7793-7812. [DOI: 10.1039/c6tb02019d] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In vivo imaging of biomedical hydrogels enables real-time and non-invasive visualization of the status of structure and function of hydrogels.
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Affiliation(s)
- Kewen Lei
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Qian Ma
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
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43
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Huang P, Zhang Y, Wang W, Zhou J, Sun Y, Liu J, Kong D, Liu J, Dong A. Co-delivery of doxorubicin and 131I by thermosensitive micellar-hydrogel for enhanced in situ synergetic chemoradiotherapy. J Control Release 2015; 220:456-464. [DOI: 10.1016/j.jconrel.2015.11.007] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 10/13/2015] [Accepted: 11/07/2015] [Indexed: 01/27/2023]
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44
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Nottelet B, Darcos V, Coudane J. Aliphatic polyesters for medical imaging and theranostic applications. Eur J Pharm Biopharm 2015; 97:350-70. [DOI: 10.1016/j.ejpb.2015.06.023] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 06/12/2015] [Accepted: 06/13/2015] [Indexed: 01/04/2023]
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45
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Zhang L, Shen W, Luan J, Yang D, Wei G, Yu L, Lu W, Ding J. Sustained intravitreal delivery of dexamethasone using an injectable and biodegradable thermogel. Acta Biomater 2015; 23:271-281. [PMID: 26004219 DOI: 10.1016/j.actbio.2015.05.005] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2014] [Revised: 03/26/2015] [Accepted: 05/09/2015] [Indexed: 12/13/2022]
Abstract
Delivery of therapeutic agents to posterior segment of the eyes is challenging due to the anatomy and physiology of ocular barriers and thus long-acting implantable formulations are much desired. In this study, a thermogelling system composed of two poly(lactic acid-co-glycolic acid)-poly(ethylene glycol)-poly(lactic acid-co-glycolic acid) (PLGA-PEG-PLGA) triblock copolymers was developed as an injectable matrix for intravitreal drug delivery. The thermogel was prepared by mixing a sol and a precipitate of PLGA-PEG-PLGA triblock copolymers with different block ratios, among which a hydrophobic glucocorticoid, dexamethasone (DEX), was incorporated. The DEX-loaded thermogel was a low-viscous liquid at low temperature and formed a non-flowing gel at body temperature. The in vitro release rate of DEX from the thermogel could be conveniently modulated by varying the mixing ratio of the two copolymers. The long-lasting intraocular residence of the thermogel was demonstrated by intravitreal injection of a fluorescence-labeled thermogel to rabbits. Compared with a DEX suspension, the intravitreal retention time of DEX increased from a dozen hours to over 1week when being loaded in the thermogel. Additionally, intravitreal administration of the thermogel did not impair the morphology of retina and cornea. This study reveals that the injectable PLGA-PEG-PLGA thermogel is a biocompatible carrier for sustained delivery of bioactive agents into the eyes, and provides an alternative approach for treatment of posterior segment diseases.
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Affiliation(s)
- Li Zhang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Wenjia Shen
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Jiabin Luan
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Dongxiao Yang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Gang Wei
- Key Laboratory of Smart Drug Delivery, Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, 220 Handan Road, Shanghai 200433, China.
| | - Weiyue Lu
- Key Laboratory of Smart Drug Delivery, Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, 220 Handan Road, Shanghai 200433, China
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46
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Jalani G, Naccache R, Rosenzweig DH, Lerouge S, Haglund L, Vetrone F, Cerruti M. Real-time, non-invasive monitoring of hydrogel degradation using LiYF4:Yb(3+)/Tm(3+) NIR-to-NIR upconverting nanoparticles. NANOSCALE 2015; 7:11255-11262. [PMID: 26067274 DOI: 10.1039/c5nr02482j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
To design a biodegradable hydrogel as cell support, one should know its in vivo degradation rate. A technique commonly used to track gel degradation is fluorescence spectroscopy. However, the fluorescence from conventional fluorophores quickly decays, and the fluorophores are often moderately cytotoxic. Most importantly, they require ultraviolet or visible (UV-Vis) light as the excitation source, which cannot penetrate deeply through biological tissues. Lanthanide-doped upconverting nanoparticles (UCNPs) are exciting alternatives to conventional fluorophores because they can convert near-infrared (NIR) to UV-Vis-NIR light via a sequential multiphoton absorption process referred to as upconversion. NIR light can penetrate up to few cm inside tissues, thus making these UCNPs much better probes than conventional fluorophores for in vivo monitoring. Also, UCNPs have narrow emission bands, high photoluminescence (PL) signal-to-noise ratio, low cytotoxicity and good physical and chemical stability. Here, we show a nanocomposite system consisting of a biodegradable, in situ thermogelling injectable hydrogel made of chitosan and hyaluronic acid encapsulating silica-coated LiYF4:Yb(3+)/Tm(3+) UCNPs. We use these UCNPs as photoluminescent tags to monitor the gel degradation inside live, cultured intervertebral discs (IVDs) over a period of 3 weeks. PL spectroscopy and NIR imaging show that NIR-to-NIR upconversion of LiYF4:Yb(3+)/Tm(3+)@SiO2 UCNPs allows for tracking of the gel degradation in living tissues. Both in vitro and ex vivo release of UCNPs follow a similar trend during the first 5 days; after this time, ex vivo release becomes faster than in vitro, indicating a faster gel degradation ex vivo. Also, the amount of released UCNPs in vitro increases continuously up to 3 weeks, while it plateaus after 15 days inside the IVDs showing a homogenous distribution of UCNPs throughout the IVD tissue. This non-invasive optical method for real time, live tissue imaging holds great potential for tissue analysis, biomapping and bioimaging applications.
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Affiliation(s)
- Ghulam Jalani
- Department of Mining and Materials Engineering, McGill University, Montreal, QC H3A 0C5, Canada.
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47
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Wang W, Song H, Zhang J, Li P, Li C, Wang C, Kong D, Zhao Q. An injectable, thermosensitive and multicompartment hydrogel for simultaneous encapsulation and independent release of a drug cocktail as an effective combination therapy platform. J Control Release 2015; 203:57-66. [DOI: 10.1016/j.jconrel.2015.02.015] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 01/28/2015] [Accepted: 02/11/2015] [Indexed: 10/24/2022]
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48
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Zhang M, Wu Y, Zhao X, Gao K, Ma PX, Guo B. Biocompatible degradable injectable hydrogels from methacrylated poly(ethylene glycol)-co-poly(xylitol sebacate) and cyclodextrins for release of hydrophilic and hydrophobic drugs. RSC Adv 2015. [DOI: 10.1039/c5ra11902b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An injectable photocurable composite hydrogel from methacrylated poly(ethylene glycol)-co-poly(xylitol sebacate) (PEGXS-M) and acrylamidomethyl-β-cyclodextrin (β-CD-NMA) for both hydrophilic and hydrophobic drug release.
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Affiliation(s)
- Mengyao Zhang
- Center for Biomedical Engineering and Regenerative Medicine
- Frontier Institute of Science and Technology
- Xi'an Jiaotong University
- Xi'an
- China
| | - Yaobin Wu
- Center for Biomedical Engineering and Regenerative Medicine
- Frontier Institute of Science and Technology
- Xi'an Jiaotong University
- Xi'an
- China
| | - Xin Zhao
- Center for Biomedical Engineering and Regenerative Medicine
- Frontier Institute of Science and Technology
- Xi'an Jiaotong University
- Xi'an
- China
| | - Kun Gao
- State Key Laboratory for Manufacturing Engineering
- Xi'an Jiaotong University
- Xi'an
- China
| | - Peter X. Ma
- Center for Biomedical Engineering and Regenerative Medicine
- Frontier Institute of Science and Technology
- Xi'an Jiaotong University
- Xi'an
- China
| | - Baolin Guo
- Center for Biomedical Engineering and Regenerative Medicine
- Frontier Institute of Science and Technology
- Xi'an Jiaotong University
- Xi'an
- China
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49
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Samuel R, Girard E, Chagnon G, Dejean S, Favier D, Coudane J, Nottelet B. Radiopaque poly(ε-caprolactone) as additive for X-ray imaging of temporary implantable medical devices. RSC Adv 2015. [DOI: 10.1039/c5ra19488a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
A family of radiopaque PCL, poly(ε-caprolactone-co-α-triiodobenzoate-ε-caprolactone), has been designed, used and evaluated as macromolecular contrast agent for X-ray imaging of implantable polymeric biomaterials.
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Affiliation(s)
- Rémi Samuel
- Institute of Biomolecules Max Mousseron (IBMM) UMR 5247
- Department of Artificial Biopolymers
- CNRS
- University of Montpellier
- ENSCM
| | - Edouard Girard
- CHU de Grenoble
- TIMC-IMAG
- F-38000 Grenoble
- France
- Université Grenoble Alpes
| | - Grégory Chagnon
- Université Grenoble Alpes
- TIMC-IMAG
- F-38000 Grenoble
- France
- CNRS
| | - Stéphane Dejean
- Institute of Biomolecules Max Mousseron (IBMM) UMR 5247
- Department of Artificial Biopolymers
- CNRS
- University of Montpellier
- ENSCM
| | - Denis Favier
- Université Grenoble Alpes
- TIMC-IMAG
- F-38000 Grenoble
- France
- CNRS
| | - Jean Coudane
- Institute of Biomolecules Max Mousseron (IBMM) UMR 5247
- Department of Artificial Biopolymers
- CNRS
- University of Montpellier
- ENSCM
| | - Benjamin Nottelet
- Institute of Biomolecules Max Mousseron (IBMM) UMR 5247
- Department of Artificial Biopolymers
- CNRS
- University of Montpellier
- ENSCM
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50
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Dong X, Wei C, Liu T, Lv F. Protoporphyrin incorporated alginate hydrogel: preparation, characterization and fluorescence imaging in vivo. RSC Adv 2015. [DOI: 10.1039/c5ra19285d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A protoporphyrin incorporated alginate hydrogel exhibits the fluorescence ability to locate a drug and carrier with multispectral fluorescence imaging in vivo.
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Affiliation(s)
- Xia Dong
- Tianjin Key Laboratory of Biomedical Materials
- Institute of Biomedical Engineering
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Tianjin 300192
- PR China
| | - Chang Wei
- Tianjin Key Laboratory of Biomedical Materials
- Institute of Biomedical Engineering
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Tianjin 300192
- PR China
| | - Tianjun Liu
- Tianjin Key Laboratory of Biomedical Materials
- Institute of Biomedical Engineering
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Tianjin 300192
- PR China
| | - Feng Lv
- Tianjin Key Laboratory of Biomedical Materials
- Institute of Biomedical Engineering
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Tianjin 300192
- PR China
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