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Bettini A, Patrick PS, Day RM, Stuckey DJ. CT-Visible Microspheres Enable Whole-Body In Vivo Tracking of Injectable Tissue Engineering Scaffolds. Adv Healthc Mater 2024; 13:e2303588. [PMID: 38678393 DOI: 10.1002/adhm.202303588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 02/27/2024] [Indexed: 04/30/2024]
Abstract
Targeted delivery and retention are essential requirements for implantable tissue-engineered products. Non-invasive imaging methods that can confirm location, retention, and biodistribution of transplanted cells attached to implanted tissue engineering scaffolds will be invaluable for the optimization and enhancement of regenerative therapies. To address this need, an injectable tissue engineering scaffold consisting of highly porous microspheres compatible with transplantation of cells is modified to contain the computed tomography (CT) contrast agent barium sulphate (BaSO4). The trackable microspheres show high x-ray absorption, with contrast permitting whole-body tracking. The microspheres are cellularized with GFP+ Luciferase+ mesenchymal stem cells and show in vitro biocompatibility. In vivo, cellularized BaSO4-loaded microspheres are delivered into the hindlimb of mice where they remain viable for 14 days. Co-registration of 3D-bioluminescent imaging and µCT reconstructions enable the assessment of scaffold material and cell co-localization. The trackable microspheres are also compatible with minimally-invasive delivery by ultrasound-guided transthoracic intramyocardial injections in rats. These findings suggest that BaSO4-loaded microspheres can be used as a novel tool for optimizing delivery techniques and tracking persistence and distribution of implanted scaffold materials. Additionally, the microspheres can be cellularized and have the potential to be developed into an injectable tissue-engineered combination product for cardiac regeneration.
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Affiliation(s)
- Annalisa Bettini
- Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London, WC1E 6DD, UK
- Centre for Precision Healthcare, Division of Medicine, University College London, London, WC1E 6JF, UK
| | - Peter Stephen Patrick
- Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London, WC1E 6DD, UK
| | - Richard M Day
- Centre for Precision Healthcare, Division of Medicine, University College London, London, WC1E 6JF, UK
| | - Daniel J Stuckey
- Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London, WC1E 6DD, UK
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2
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Guo L, Zou D, Qiu W, Fei F, Chen L, Chen W, Xiong H, Li X, Wang Y, Gao M, Zhu J, Zhang J, He Y, Gao M, Xu R. Linc-NSC affects cell differentiation, apoptosis and proliferation in mouse neural stem cells and embryonic stem cells in vitro and in vivo. Cell Mol Life Sci 2024; 81:182. [PMID: 38615283 PMCID: PMC11016521 DOI: 10.1007/s00018-024-05224-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 12/12/2023] [Accepted: 03/18/2024] [Indexed: 04/15/2024]
Abstract
BACKGROUND Stem cell therapy is a promising therapeutic strategy. In a previous study, we evaluated tumorigenicity by the stereotactic transplantation of neural stem cells (NSCs) and embryonic stem cells (ESCs) from experimental mice. Twenty-eight days later, there was no evidence of tumor formation or long-term engraftment in the NSCs transplantation group. In contrast, the transplantation of ESCs caused tumor formation; this was due to their high proliferative capacity. Based on transcriptome sequencing, we found that a long intergenic non-coding RNA (named linc-NSC) with unknown structure and function was expressed at 1100-fold higher levels in NSCs than in ESCs. This finding suggested that linc-NSC is negatively correlated with stem cell pluripotency and tumor development, but positively correlated with neurogenesis. In the present study, we investigated the specific role of linc-NSC in NSCs/ESCs in tumor formation and neurogenesis. METHODS Whole transcriptome profiling by RNA sequencing and bioinformatics was used to predict lncRNAs that are widely associated with enhanced tumorigenicity. The expression of linc-NSC was assessed by quantitative real-time PCR. We also performed a number of in vitro methods, including cell proliferation assays, differentiation assays, immunofluorescence assays, flow cytometry, along with in vivo survival and immunofluorescence assays to investigate the impacts of linc-NSC on tumor formation and neurogenesis in NSCs and ESCs. RESULTS Following the knockdown of linc-NSC in NSCs, NSCs cultured in vitro and those transplanted into the cortex of mice showed stronger survival ability (P < 0.0001), enhanced proliferation(P < 0.001), and reduced apoptosis (P < 0.05); the opposite results were observed when linc-NSC was overexpressed in ESCs. Furthermore, the overexpression of linc-NSC in ECSs induced enhanced apoptosis (P < 0.001) and differentiation (P < 0.01), inhibited tumorigenesis (P < 0.05) in vivo, and led to a reduction in tumor weight (P < 0.0001). CONCLUSIONS Our analyses demonstrated that linc-NSC, a promising gene-edited target, may promote the differentiation of mouse NSCs and inhibit tumorigenesis in mouse ESCs. The knockdown of linc-NSC inhibited the apoptosis in NSCs both in vitro and in vivo, and prevented tumor formation, revealing a new dimension into the effect of lncRNA on low survival NSCs and providing a prospective gene manipulation target prior to transplantation. In parallel, the overexpression of linc-NSC induced apoptosis in ESCs both in vitro and in vivo and attenuated the tumorigenicity of ESCs in vivo, but did not completely prevent tumor formation.
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Affiliation(s)
- Lili Guo
- Department of Neurosurgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, China
| | - Dan Zou
- Department of Neurosurgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, China
| | - Wenqiao Qiu
- Department of Neurosurgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, China
| | - Fan Fei
- Department of Neurosurgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, China
| | - Lihua Chen
- Department of Neurosurgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, China
| | - Wenjin Chen
- Department of Neurosurgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, China
| | - Huan Xiong
- Department of Neurosurgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, China
| | - Xinda Li
- Department of Neurosurgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, China
| | - Yangyang Wang
- Department of Neurosurgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, China
| | - Mingjun Gao
- Department of Neurosurgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, China
| | - Jianwei Zhu
- Department of Neurosurgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, China
| | - Jin Zhang
- Department of Neurosurgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, China
| | - Yunsen He
- Department of Neurosurgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, China
| | - Mou Gao
- Department of Neurosurgery, Chinese PLA General Hospital, Beijing, 100853, China.
| | - Ruxiang Xu
- Department of Neurosurgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, China.
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Flechas Becerra C, Barrios Silva LV, Ahmed E, Bear JC, Feng Z, Chau DY, Parker SG, Halligan S, Lythgoe MF, Stuckey DJ, Patrick PS. X-Ray Visible Protein Scaffolds by Bulk Iodination. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306246. [PMID: 38145968 PMCID: PMC10933627 DOI: 10.1002/advs.202306246] [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: 09/01/2023] [Revised: 11/18/2023] [Indexed: 12/27/2023]
Abstract
Protein-based biomaterial use is expanding within medicine, together with the demand to visualize their placement and behavior in vivo. However, current medical imaging techniques struggle to differentiate between protein-based implants and surrounding tissue. Here a fast, simple, and translational solution for tracking transplanted protein-based scaffolds is presented using X-ray CT-facilitating long-term, non-invasive, and high-resolution imaging. X-ray visible scaffolds are engineered by selectively iodinating tyrosine residues under mild conditions using readily available reagents. To illustrate translatability, a clinically approved hernia repair mesh (based on decellularized porcine dermis) is labeled, preserving morphological and mechanical properties. In a mouse model of mesh implantation, implants retain marked X-ray contrast up to 3 months, together with an unchanged degradation rate and inflammatory response. The technique's compatibility is demonstrated with a range of therapeutically relevant protein formats including bovine, porcine, and jellyfish collagen, as well as silk sutures, enabling a wide range of surgical and regenerative medicine uses. This solution tackles the challenge of visualizing implanted protein-based biomaterials, which conventional imaging methods fail to differentiate from endogenous tissue. This will address previously unanswered questions regarding the accuracy of implantation, degradation rate, migration, and structural integrity, thereby accelerating optimization and safe translation of therapeutic biomaterials.
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Affiliation(s)
- Carlos Flechas Becerra
- Centre for Advanced Biomedical ImagingDivision of MedicineUniversity College LondonPaul O'Gorman Building, 72 Huntley StreetLondonWC1E 6DDUK
| | - Lady V. Barrios Silva
- Division of Biomaterials and Tissue EngineeringEastman Dental InstituteUniversity College LondonRoyal Free HospitalRowland Hill StreetLondonNW3 2PFUK
| | - Ebtehal Ahmed
- Centre for Advanced Biomedical ImagingDivision of MedicineUniversity College LondonPaul O'Gorman Building, 72 Huntley StreetLondonWC1E 6DDUK
| | - Joseph C. Bear
- School of Life SciencePharmacy & ChemistryKingston UniversityPenrhyn RoadKingston upon ThamesKT1 2EEUK
| | - Zhiping Feng
- Centre for Advanced Biomedical ImagingDivision of MedicineUniversity College LondonPaul O'Gorman Building, 72 Huntley StreetLondonWC1E 6DDUK
| | - David Y.S. Chau
- Division of Biomaterials and Tissue EngineeringEastman Dental InstituteUniversity College LondonRoyal Free HospitalRowland Hill StreetLondonNW3 2PFUK
| | - Samuel G. Parker
- Centre for Medical Imaging, Division of MedicineUniversity College London UCLCharles Bell House, 43–45 Foley StreetLondonW1W 7TSUK
| | - Steve Halligan
- Centre for Medical Imaging, Division of MedicineUniversity College London UCLCharles Bell House, 43–45 Foley StreetLondonW1W 7TSUK
| | - Mark F. Lythgoe
- Centre for Advanced Biomedical ImagingDivision of MedicineUniversity College LondonPaul O'Gorman Building, 72 Huntley StreetLondonWC1E 6DDUK
| | - Daniel J. Stuckey
- Centre for Advanced Biomedical ImagingDivision of MedicineUniversity College LondonPaul O'Gorman Building, 72 Huntley StreetLondonWC1E 6DDUK
| | - P. Stephen Patrick
- Centre for Advanced Biomedical ImagingDivision of MedicineUniversity College LondonPaul O'Gorman Building, 72 Huntley StreetLondonWC1E 6DDUK
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Ping P, Guan S, Ning C, Yang T, Zhao Y, Zhang P, Gao Z, Fu S. Fabrication of blended nanofibrous cardiac patch transplanted with TGF-β3 and human umbilical cord MSCs-derived exosomes for potential cardiac regeneration after acute myocardial infarction. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2023; 54:102708. [PMID: 37788793 DOI: 10.1016/j.nano.2023.102708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 07/22/2023] [Accepted: 09/05/2023] [Indexed: 10/05/2023]
Abstract
Acute myocardial infarction (AMI) is a common cardiovascular condition that progressively results in heart failure. In the present study, we have designed to load transforming growth factor beta 3 (TGF-β3) and cardio potential exosomes into the blended polycaprolactone/type I collagen (PCL/COL-1) nanofibrous patch (Exo@TGF-β3@NFs) and examined its feasibility for cardiac repair. The bioactivity of the developed NFs towards the migration and proliferation of human umbilical vein endothelial cells was determined using in vitro cell compatibility assays. Additionally, Exo@TGF-β3/NFs showed up-regulation of genes involved in angiogenesis and mesenchymal differentiations in vitro. The in vivo experiments performed 4 weeks after transplantation showed that the Exo@TGF-β3@NFs had a higher LV ejection fraction and fraction shortening functions. Subsequently, it has been determined that Exo@TGF-β3@NFs significantly reduced AMI size and fibrosis and increased scar thickness. The developed NFs approach will become a useful therapeutic approach for the treatment of AMI.
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Affiliation(s)
- Ping Ping
- General Station for Drug and Instrument Supervision and Control, Joint Logistic Support Force of Chinese People's Liberation Army, Beijing, PR China
| | - Shasha Guan
- Department of Oncology, Hainan Hospital of Chinese People's Liberation Army General Hospital, Sanya, Hainan Province, PR China
| | - Chaoxue Ning
- Central Laboratory, Hainan Hospital of Chinese People's Liberation Army General Hospital, Sanya, Hainan Province, PR China
| | - Ting Yang
- Central Laboratory, Hainan Hospital of Chinese People's Liberation Army General Hospital, Sanya, Hainan Province, PR China
| | - Yali Zhao
- Central Laboratory, Hainan Hospital of Chinese People's Liberation Army General Hospital, Sanya, Hainan Province, PR China
| | - Pei Zhang
- School of Life Science, Beijing Institute of Technology, Beijing, PR China.
| | - Zhitao Gao
- School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, Henan Province, PR China.
| | - Shihui Fu
- Department of Cardiology, Hainan Hospital of Chinese People's Liberation Army General Hospital, Sanya, Hainan Province, PR China; Department of Geriatric Cardiology, Chinese People's Liberation Army General Hospital, Beijing, PR China.
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El-Husseiny HM, Mady EA, El-Dakroury WA, Doghish AS, Tanaka R. Stimuli-responsive hydrogels: smart state of-the-art platforms for cardiac tissue engineering. Front Bioeng Biotechnol 2023; 11:1174075. [PMID: 37449088 PMCID: PMC10337592 DOI: 10.3389/fbioe.2023.1174075] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 06/15/2023] [Indexed: 07/18/2023] Open
Abstract
Biomedicine and tissue regeneration have made significant advancements recently, positively affecting the whole healthcare spectrum. This opened the way for them to develop their applications for revitalizing damaged tissues. Thus, their functionality will be restored. Cardiac tissue engineering (CTE) using curative procedures that combine biomolecules, biomimetic scaffolds, and cells plays a critical part in this path. Stimuli-responsive hydrogels (SRHs) are excellent three-dimensional (3D) biomaterials for tissue engineering (TE) and various biomedical applications. They can mimic the intrinsic tissues' physicochemical, mechanical, and biological characteristics in a variety of ways. They also provide for 3D setup, adequate aqueous conditions, and the mechanical consistency required for cell development. Furthermore, they function as competent delivery platforms for various biomolecules. Many natural and synthetic polymers were used to fabricate these intelligent platforms with innovative enhanced features and specialized capabilities that are appropriate for CTE applications. In the present review, different strategies employed for CTE were outlined. The light was shed on the limitations of the use of conventional hydrogels in CTE. Moreover, diverse types of SRHs, their characteristics, assembly and exploitation for CTE were discussed. To summarize, recent development in the construction of SRHs increases their potential to operate as intelligent, sophisticated systems in the reconstruction of degenerated cardiac tissues.
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Affiliation(s)
- Hussein M. El-Husseiny
- Laboratory of Veterinary Surgery, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
- Department of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, Benha University, Benha, Egypt
| | - Eman A. Mady
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
- Department of Animal Hygiene, Behavior and Management, Faculty of Veterinary Medicine, Benha University, Benha, Egypt
| | - Walaa A. El-Dakroury
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr, Egypt
| | - Ahmed S. Doghish
- Department of Biochemistry, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr, Egypt
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | - Ryou Tanaka
- Laboratory of Veterinary Surgery, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
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6
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Speidel AT, Chivers PRA, Wood CS, Roberts DA, Correia IP, Caravaca AS, Chan YKV, Hansel CS, Heimgärtner J, Müller E, Ziesmer J, Sotiriou GA, Olofsson PS, Stevens MM. Tailored Biocompatible Polyurethane-Poly(ethylene glycol) Hydrogels as a Versatile Nonfouling Biomaterial. Adv Healthc Mater 2022; 11:e2201378. [PMID: 35981326 PMCID: PMC7615486 DOI: 10.1002/adhm.202201378] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 07/28/2022] [Indexed: 01/28/2023]
Abstract
Polyurethane-based hydrogels are relatively inexpensive and mechanically robust biomaterials with ideal properties for various applications, including drug delivery, prosthetics, implant coatings, soft robotics, and tissue engineering. In this report, a simple method is presented for synthesizing and casting biocompatible polyurethane-poly(ethylene glycol) (PU-PEG) hydrogels with tunable mechanical properties, nonfouling characteristics, and sustained tolerability as an implantable material or coating. The hydrogels are synthesized via a simple one-pot method using commercially available precursors and low toxicity solvents and reagents, yielding a consistent and biocompatible gel platform primed for long-term biomaterial applications. The mechanical and physical properties of the gels are easily controlled by varying the curing concentration, producing networks with complex shear moduli of 0.82-190 kPa, similar to a range of human soft tissues. When evaluated against a mechanically matched poly(dimethylsiloxane) (PDMS) formulation, the PU-PEG hydrogels demonstrated favorable nonfouling characteristics, including comparable adsorption of plasma proteins (albumin and fibrinogen) and significantly reduced cellular adhesion. Moreover, preliminary murine implant studies reveal a mild foreign body response after 41 days. Due to the tunable mechanical properties, excellent biocompatibility, and sustained in vivo tolerability of these hydrogels, it is proposed that this method offers a simplified platform for fabricating soft PU-based biomaterials for a variety of applications.
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Affiliation(s)
- Alessondra T Speidel
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Phillip R A Chivers
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Christopher S Wood
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Derrick A Roberts
- Key Centre for Polymers and Colloids, School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Inês P Correia
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - April S Caravaca
- Laboratory of Immunobiology, Stockholm Center for Bioelectronic Medicine, Department of Medicine, Solna, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Yu Kiu Victor Chan
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Catherine S Hansel
- Science for Life Laboratory, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Johannes Heimgärtner
- Science for Life Laboratory, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Eliane Müller
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Jill Ziesmer
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Georgios A Sotiriou
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Peder S Olofsson
- Laboratory of Immunobiology, Stockholm Center for Bioelectronic Medicine, Department of Medicine, Solna, Karolinska Institutet, Stockholm, 171 77, Sweden
- Center for Biomedical Science and Bioelectronic Medicine, The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA
| | - Molly M Stevens
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 77, Sweden
- Department of Materials, Department of Bioengineering, and Institute for Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
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7
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Semcheddine F, El Islem Guissi N, Liu W, Gang L, Jiang H, Wang X. Rapid and label-free cancer theranostics via in situ bio-self-assembled DNA-gold nanostructures loaded exosomes. MATERIALS HORIZONS 2021; 8:2771-2784. [PMID: 34605844 DOI: 10.1039/d1mh00880c] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Chemically engineered nanomaterials have been extensively used in early tumor detection and cancer therapy. Despite the promise shown, their chemical or exogenous nature hinders their application due to their unknown adverse effects. Herein, using a cancer cell environment, fluorescent DNA-gold nanostructures were bio-self-assembled through simple incubation of DNA and Au solutions with cancer cells. In situ, ex vivo, bio-responsive self-assembly of ring-shaped DNA-Au nanostructures is reported for the first time. Subsequently, the exosomes released by the above-mentioned cancer cells were found to carry the self-assembled DNA-Au nanostructures, exhibiting strong in vivo dual fluorescence properties. Interestingly, these exosomes could be immediately taken up in vitro by their parent cells, reaching the nucleus within 10 min after incubation. Taking advantage of the unique endogenous properties of exosomes, and their advanced cargo delivery capacity, we further exploited the DNA-Au nanostructure loaded exosomes with mitoxantrone for accurate cancer theranostics. The in vitro and in vivo results showed that the exosomes could effectively deliver the drug cargo to cancerous cells, hence, displaying an enhanced targeting effect towards parent cancer cells, and a synergistic tumor inhibition effect, while showing great biocompatibility towards normal cells and vital organs. Hence, exosomes carrying the in situ bio-self-assembled DNA-Au nanostructures could be an outstanding delivery system for dye-free targeted cancer detection and therapy.
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Affiliation(s)
- Farouk Semcheddine
- State Key Laboratory of Bioelectronics (Chien-Shiung Wu Lab), School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, P. R. China.
| | - Nida El Islem Guissi
- Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
| | - Weiwei Liu
- State Key Laboratory of Bioelectronics (Chien-Shiung Wu Lab), School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, P. R. China.
| | - Lv Gang
- Mathematical & Physical Science School, North China Electric Power University, Baoding, 071003, P. R. China
| | - Hui Jiang
- State Key Laboratory of Bioelectronics (Chien-Shiung Wu Lab), School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, P. R. China.
| | - Xuemei Wang
- State Key Laboratory of Bioelectronics (Chien-Shiung Wu Lab), School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, P. R. China.
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8
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Gao Y, Peng K, Mitragotri S. Covalently Crosslinked Hydrogels via Step-Growth Reactions: Crosslinking Chemistries, Polymers, and Clinical Impact. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006362. [PMID: 33988273 DOI: 10.1002/adma.202006362] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/24/2020] [Indexed: 06/12/2023]
Abstract
Hydrogels are an important class of biomaterials with the unique property of high-water content in a crosslinked polymer network. In particular, chemically crosslinked hydrogels have made a great clinical impact in past years because of their desirable mechanical properties and tunability of structural and chemical properties. Various polymers and step-growth crosslinking chemistries are harnessed for fabricating such covalently crosslinked hydrogels for translational research. However, selecting appropriate crosslinking chemistries and polymers for the intended clinical application is time-consuming and challenging. It requires the integration of polymer chemistry knowledge with thoughtful crosslinking reaction design. This task becomes even more challenging when other factors such as the biological mechanisms of the pathology, practical administration routes, and regulatory requirements add additional constraints. In this review, key features of crosslinking chemistries and polymers commonly used for preparing translatable hydrogels are outlined and their performance in biological systems is summarized. The examples of effective polymer/crosslinking chemistry combinations that have yielded clinically approved hydrogel products are specifically highlighted. These hydrogel design parameters in the context of the regulatory process and clinical translation barriers, providing a guideline for the rational selection of polymer/crosslinking chemistry combinations to construct hydrogels with high translational potential are further considered.
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Affiliation(s)
- Yongsheng Gao
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute of Biologically Inspired Engineering, Boston, MA, 02115, USA
| | - Kevin Peng
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute of Biologically Inspired Engineering, Boston, MA, 02115, USA
| | - Samir Mitragotri
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute of Biologically Inspired Engineering, Boston, MA, 02115, USA
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9
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Gallo E, Rosa E, Diaferia C, Rossi F, Tesauro D, Accardo A. Systematic overview of soft materials as a novel frontier for MRI contrast agents. RSC Adv 2020; 10:27064-27080. [PMID: 35515779 PMCID: PMC9055484 DOI: 10.1039/d0ra03194a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 07/02/2020] [Indexed: 02/02/2023] Open
Abstract
Magnetic resonance imaging (MRI) is a well-known diagnostic technique used to obtain high quality images in a non-invasive manner. In order to increase the contrast between normal and pathological regions in the human body, positive (T1) or negative (T2) contrast agents (CAs) are commonly intravenously administered. The most efficient class of T1-CAs are based on kinetically stable and thermodynamically inert gadolinium complexes. In the last two decades many novel macro- and supramolecular CAs have been proposed. These approaches have been optimized to increase the performance of the CAs in terms of the relaxivity values and to reduce the administered dose, decreasing the toxicity and giving better safety and pharmacokinetic profiles. The improved performances may also allow further information to be gained on the pathological and physiological state of the human body. The goal of this review is to report a systematic overview of the nanostructurated CAs obtained and developed by manipulating soft materials at the nanometer scale. Specifically, our attention is centered on recent examples of fibers, hydrogels and nanogel formulations, that seem particularly promising for overcoming the problematic issues that have recently pushed the European Medicines Agency (EMA) to withdraw linear CAs from the market. Gd(iii)-nanostructurated Constrast Agents (CAs) for Magnetic Resonance Imaging (MRI) can be designed and developed by manipulating soft material, including fibers, hydrogels and nanogels, in the nanometer scale.![]()
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Affiliation(s)
- Enrico Gallo
- IRCCS SDN Via E. Gianturco 113 80143 Napoli Italy
| | - Elisabetta Rosa
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II" Via Mezzocannone 16 80134-Naples Italy
| | - Carlo Diaferia
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II" Via Mezzocannone 16 80134-Naples Italy
| | - Filomena Rossi
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II" Via Mezzocannone 16 80134-Naples Italy
| | - Diego Tesauro
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II" Via Mezzocannone 16 80134-Naples Italy
| | - Antonella Accardo
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II" Via Mezzocannone 16 80134-Naples Italy
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10
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Zhang X, Shu W, Yu Q, Qu W, Wang Y, Li R. Functional Biomaterials for Treatment of Chronic Wound. Front Bioeng Biotechnol 2020; 8:516. [PMID: 32582657 PMCID: PMC7283526 DOI: 10.3389/fbioe.2020.00516] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 05/01/2020] [Indexed: 12/30/2022] Open
Abstract
The increasing number of patients with chronic wounds caused by diseases, such as diabetes, malignant tumors, infections, and vasculopathy, has caused severe economic and social burdens. The main clinical treatments for chronic wounds include the systemic use of antibiotics, changing dressings frequently, operative debridement, and flap repair. These routine therapeutic strategies are characterized by a long course of treatment, substantial trauma, and high costs, and fail to produce satisfactory results. Biomaterial dressings targeting the different stages of the pathophysiology of chronic wounds have become an active research topic in recent years. In this review, after providing an overview of the epidemiology of chronic wounds, and the pathophysiological characteristics of chronic wounds, we highlight the functional biomaterials that can enhance chronic wound healing through debridement, anti-infection and antioxidant effects, immunoregulation, angiogenesis, and extracellular matrix remodeling. It is hoped that functional biomaterials will resolve the treatment dilemma for chronic wounds and improve patient quality of life.
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Affiliation(s)
- Xi Zhang
- Department of Hand Surgery, The Second Hospital of Jilin University, Changchun, China.,Department of Burn Surgery, The First Hospital of Jilin University, Changchun, China
| | - Wentao Shu
- Department of Biobank, Division of Clinical Research, The First Hospital of Jilin University, Changchun, China
| | - Qinghua Yu
- Department of Burn Surgery, The First Hospital of Jilin University, Changchun, China
| | - Wenrui Qu
- Department of Hand Surgery, The Second Hospital of Jilin University, Changchun, China
| | - Yinan Wang
- Department of Biobank, Division of Clinical Research, The First Hospital of Jilin University, Changchun, China.,Key Laboratory of Organ Regeneration and Transplantation, The First Hospital of Jilin University, Changchun, China
| | - Rui Li
- Department of Hand Surgery, The Second Hospital of Jilin University, Changchun, China
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11
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Mondal S, Das S, Nandi AK. A review on recent advances in polymer and peptide hydrogels. SOFT MATTER 2020; 16:1404-1454. [PMID: 31984400 DOI: 10.1039/c9sm02127b] [Citation(s) in RCA: 198] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this review, we focus on the very recent developments on the use of the stimuli responsive properties of polymer hydrogels for targeted drug delivery, tissue engineering, and biosensing utilizing their different optoelectronic properties. Besides, the stimuli-responsive hydrogels, the conducting polymer hydrogels are discussed, with specific attention to the energy generation and storage behavior of the xerogel derived from the hydrogel. The electronic and ionic conducting gels have been discussed that have applications in various electronic devices, e.g., organic field effect transistors, soft robotics, ionic skins, and sensors. The properties of polymer hybrid gels containing carbon nanomaterials have been exemplified here giving attention to applications in supercapacitors, dye sensitized solar cells, photocurrent switching, etc. Recent trends in the properties and applications of some natural polymer gels to produce thermal and acoustic insulating materials, drug delivery vehicles, self-healing material, tissue engineering, etc., are discussed. Besides the polymer gels, peptide gels of different dipeptides, tripeptides, oligopeptides, polypeptides, cyclic peptides, etc., are discussed, giving attention mainly to biosensing, bioimaging, and drug delivery applications. The properties of peptide-based hybrid hydrogels with polymers, nanoparticles, nucleotides, fullerene, etc., are discussed, giving specific attention to drug delivery, cell culture, bio-sensing, and bioimaging properties. Thus, the present review delineates, in short, the preparation, properties, and applications of different polymer and peptide hydrogels prepared in the past few years.
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Affiliation(s)
- Sanjoy Mondal
- Polymer Science Unit, School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India.
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12
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Pupkaite J, Rosenquist J, Hilborn J, Samanta A. Injectable Shape-Holding Collagen Hydrogel for Cell Encapsulation and Delivery Cross-linked Using Thiol-Michael Addition Click Reaction. Biomacromolecules 2019; 20:3475-3484. [DOI: 10.1021/acs.biomac.9b00769] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Justina Pupkaite
- Polymer Chemistry, Department of Chemistry—Ångström Laboratory, Uppsala University, Box 538, 751 21 Uppsala, Sweden
- Division of Cell Biology, Department of Clinical and Experimental Medicine, Linköping University, Linköping 582 25, Sweden
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa K1H 8M5, Ontario, Canada
| | - Jenny Rosenquist
- Polymer Chemistry, Department of Chemistry—Ångström Laboratory, Uppsala University, Box 538, 751 21 Uppsala, Sweden
| | - Jöns Hilborn
- Polymer Chemistry, Department of Chemistry—Ångström Laboratory, Uppsala University, Box 538, 751 21 Uppsala, Sweden
| | - Ayan Samanta
- Polymer Chemistry, Department of Chemistry—Ångström Laboratory, Uppsala University, Box 538, 751 21 Uppsala, Sweden
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13
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Wu H, Li F, Shao W, Gao J, Ling D. Promoting Angiogenesis in Oxidative Diabetic Wound Microenvironment Using a Nanozyme-Reinforced Self-Protecting Hydrogel. ACS CENTRAL SCIENCE 2019; 5:477-485. [PMID: 30937375 PMCID: PMC6439452 DOI: 10.1021/acscentsci.8b00850] [Citation(s) in RCA: 169] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Indexed: 05/02/2023]
Abstract
Impaired diabetic wound healing represents a devastating and rapidly growing clinical problem associated with high morbidity, mortality, and recurrence rates. Engineering therapeutic angiogenesis in the wounded tissue is critical for successful wound healing. However, stimulating functional angiogenesis of the diabetic wound remains a great challenge, due to the oxidative damage and denaturation of bio-macromolecule-based angiogenic agents in the oxidative diabetic wound microenvironment. Here, we present a unique "seed-and-soil" strategy that circumvents the limitation by simultaneously reshaping the oxidative wound microenvironment into a proregenerative one (the "soil") and providing proangiogenic miRNA cues (the "seed") using an miRNA-impregnated, redox-modulatory ceria nanozyme-reinforced self-protecting hydrogel (PCN-miR/Col). The PCN-miR/Col not only reshapes the hostile oxidative wound microenvironment, but also ensures the structural integrity of the encapsulated proangiogenic miRNA in the oxidative microenvironment. Diabetic wounds treated with the PCN-miR/Col demonstrate a remarkably accelerated wound closure and enhanced quality of the healed wound as featured by highly ordered alignment of collagen fiber, skin appendage morphogenesis, functional new blood vessel growth, and oxygen saturation.
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Affiliation(s)
- Haibin Wu
- Institute
of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Fangyuan Li
- Institute
of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
- Hangzhou
Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310012, P. R.
China
| | - Wei Shao
- Institute
of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Jianqing Gao
- Institute
of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
- Dr.
Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative
Medicine, Zhejiang University, Hangzhou 310058, P. R. China
- E-mail:
| | - Daishun Ling
- Institute
of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
- Hangzhou
Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310012, P. R.
China
- Key
Laboratory of Biomedical Engineering of the Ministry of Education,
College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310027, P. R.
China
- E-mail:
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14
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Feng Q, Xu J, Zhang K, Yao H, Zheng N, Zheng L, Wang J, Wei K, Xiao X, Qin L, Bian L. Dynamic and Cell-Infiltratable Hydrogels as Injectable Carrier of Therapeutic Cells and Drugs for Treating Challenging Bone Defects. ACS CENTRAL SCIENCE 2019; 5:440-450. [PMID: 30937371 PMCID: PMC6439455 DOI: 10.1021/acscentsci.8b00764] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Indexed: 05/24/2023]
Abstract
Biopolymeric hydrogels have been widely used as carriers of therapeutic cells and drugs for biomedical applications. However, most conventional hydrogels cannot be injected after gelation and do not support the infiltration of cells because of the static nature of their network structure. Here, we develop unique cell-infiltratable and injectable (Ci-I) gelatin hydrogels, which are physically cross-linked by weak and highly dynamic host-guest complexations and are further reinforced by limited chemical cross-linking for enhanced stability, and then demonstrate the outstanding properties of these Ci-I gelatin hydrogels. The highly dynamic network of Ci-I hydrogels allows injection of prefabricated hydrogels with encapsulated cells and drugs, thereby simplifying administration during surgery. Furthermore, the reversible nature of the weak host-guest cross-links enables infiltration and migration of external cells into Ci-I gelatin hydrogels, thereby promoting the participation of endogenous cells in the healing process. Our findings show that Ci-I hydrogels can mediate sustained delivery of small hydrophobic molecular drugs (e.g., icaritin) to boost differentiation of stem cells while avoiding the adverse effects (e.g., in treatment of bone necrosis) associated with high drug dosage. The injection of Ci-I hydrogels encapsulating mesenchymal stem cells (MSCs) and drug (icaritin) efficiently prevented the decrease in bone mineral density (BMD) and promoted in situ bone regeneration in an animal model of steroid-associated osteonecrosis (SAON) of the hip by creating the microenvironment favoring the osteogenic differentiation of MSCs, including the recruited endogenous cells. We believe that this is the first demonstration on applying injectable hydrogels as effective carriers of therapeutic cargo for treating dysfunctions in deep and enclosed anatomical sites via a minimally invasive procedure.
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Affiliation(s)
- Qian Feng
- Fujian
Provincial Key Laboratory of Advanced Materials Oriented Chemical
Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
- Department
of Biomedical Engineering, The Chinese University
of Hong Kong, William M.W. Mong Building, Shatin, Hong Kong
SAR, China
| | - Jiankun Xu
- Department
of Orthopaedic and Traumatology and Innovative Orthopaedic Biomaterial
and Drug Translational Research Laboratory of Li Ka Shing Institute
of Health, Faculty of Medicine, The Chinese
University of Hong Kong, Hong Kong
SAR, China
| | - Kunyu Zhang
- Department
of Biomedical Engineering, The Chinese University
of Hong Kong, William M.W. Mong Building, Shatin, Hong Kong
SAR, China
| | - Hao Yao
- Department
of Orthopaedic and Traumatology and Innovative Orthopaedic Biomaterial
and Drug Translational Research Laboratory of Li Ka Shing Institute
of Health, Faculty of Medicine, The Chinese
University of Hong Kong, Hong Kong
SAR, China
| | - Nianye Zheng
- Department
of Orthopaedic and Traumatology and Innovative Orthopaedic Biomaterial
and Drug Translational Research Laboratory of Li Ka Shing Institute
of Health, Faculty of Medicine, The Chinese
University of Hong Kong, Hong Kong
SAR, China
| | - Lizhen Zheng
- Department
of Orthopaedic and Traumatology and Innovative Orthopaedic Biomaterial
and Drug Translational Research Laboratory of Li Ka Shing Institute
of Health, Faculty of Medicine, The Chinese
University of Hong Kong, Hong Kong
SAR, China
| | - Jiali Wang
- Department
of Orthopaedic and Traumatology and Innovative Orthopaedic Biomaterial
and Drug Translational Research Laboratory of Li Ka Shing Institute
of Health, Faculty of Medicine, The Chinese
University of Hong Kong, Hong Kong
SAR, China
| | - Kongchang Wei
- Department
of Biomedical Engineering, The Chinese University
of Hong Kong, William M.W. Mong Building, Shatin, Hong Kong
SAR, China
- Laboratory
for Biomimetic Membranes and Textiles, Empa,
Swiss Federal Laboratories for Materials Science and Technology, 9014 St., Gallen, Switzerland
| | - Xiufeng Xiao
- Fujian
Provincial Key Laboratory of Advanced Materials Oriented Chemical
Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
| | - Ling Qin
- Department
of Orthopaedic and Traumatology and Innovative Orthopaedic Biomaterial
and Drug Translational Research Laboratory of Li Ka Shing Institute
of Health, Faculty of Medicine, The Chinese
University of Hong Kong, Hong Kong
SAR, China
| | - Liming Bian
- Department
of Biomedical Engineering, The Chinese University
of Hong Kong, William M.W. Mong Building, Shatin, Hong Kong
SAR, China
- Translational
Research Centre of Regenerative Medicine and 3D Printing Technologies
of Guangzhou Medical University, The Third
Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510150, China
- Shenzhen
Research Institute, The Chinese University
of Hong Kong, Shenzhen 518172, China
- China
Orthopedic Regenerative Medicine Group (CORMed), Hangzhou 310058, China
- Centre
for Novel Biomaterials, The Chinese University
of Hong Kong, Hong Kong SAR, China
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15
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Wang L, Neumann M, Fu T, Li W, Cheng X, Su BL. Porous and responsive hydrogels for cell therapy. Curr Opin Colloid Interface Sci 2018. [DOI: 10.1016/j.cocis.2018.10.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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16
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Su J. Thiol-Mediated Chemoselective Strategies for In Situ Formation of Hydrogels. Gels 2018; 4:E72. [PMID: 30674848 PMCID: PMC6209259 DOI: 10.3390/gels4030072] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 08/28/2018] [Accepted: 08/31/2018] [Indexed: 12/15/2022] Open
Abstract
Hydrogels are three-dimensional networks composed of hydrated polymer chains and have been a material of choice for many biomedical applications such as drug delivery, biosensing, and tissue engineering due to their unique biocompatibility, tunable physical characteristics, flexible methods of synthesis, and range of constituents. In many cases, methods for crosslinking polymer precursors to form hydrogels would benefit from being highly selective in order to avoid cross-reactivity with components of biological systems leading to adverse effects. Crosslinking reactions involving the thiol group (SH) offer unique opportunities to construct hydrogel materials of diverse properties under mild conditions. This article reviews and comments on thiol-mediated chemoselective and biocompatible strategies for crosslinking natural and synthetic macromolecules to form injectable hydrogels for applications in drug delivery and cell encapsulation.
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Affiliation(s)
- Jing Su
- Department of Chemistry, Northeastern Illinois University, Chicago, IL 60625, USA.
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17
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Shaikh S, Rehman FU, Du T, Jiang H, Yin L, Wang X, Chai R. Real-Time Multimodal Bioimaging of Cancer Cells and Exosomes through Biosynthesized Iridium and Iron Nanoclusters. ACS APPLIED MATERIALS & INTERFACES 2018; 10:26056-26063. [PMID: 30011179 DOI: 10.1021/acsami.8b08975] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Multimodal bioimaging is a powerful tool for visualizing the abnormal state at the target site of the related disease. In this study, we used multimodal imaging techniques such as computed tomography, fluorescence, and magnetic resonance imaging to improve early and precise diagnosis of tumor. Herein, we reported the facile in situ biosynthesis of iridium and iron oxide nanoclusters (NCs) in cancer cells or tumor tissue. These NCs are used as a multimodal bioimaging probe to improve the image sensitivity and specificity toward the tumor. These NCs are applied for the in vivo multimodal imaging in the form of an imaging probe capable of enhancing the sensitivity of the image and specificity toward the tumor tissue. Our observation demonstrates that highly luminescent and magnetic NCs are not only biocompatible but also tumor-targeted because NC formation does not take place in normal cells and tissues. In addition, we isolated exosomes and the biosynthesized NCs internalized within exosomes, and these exosomes can be used as cancer biomarkers.
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Affiliation(s)
| | | | | | | | - Lihong Yin
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health , Southeast University , Nanjing 210009 , China
| | | | - Renjie Chai
- Co-innovation Center of Neuroregeneration , Nantong University , Nantong 226001 , China
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18
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Wang H, Agarwal P, Liang Y, Xu J, Zhao G, Tkaczuk KHR, Lu X, He X. Enhanced cancer therapy with cold-controlled drug release and photothermal warming enabled by one nanoplatform. Biomaterials 2018; 180:265-278. [PMID: 30055400 DOI: 10.1016/j.biomaterials.2018.07.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 07/10/2018] [Accepted: 07/11/2018] [Indexed: 12/19/2022]
Abstract
Stimuli-responsive nanoparticles hold great promise for drug delivery to improve the safety and efficacy of cancer therapy. One of the most investigated stimuli-responsive strategies is to induce drug release by heating with laser, ultrasound, or electromagnetic field. More recently, cryosurgery (also called cryotherapy and cryoablation), destruction of diseased tissues by first cooling/freezing and then warming back, has been used to treat various diseases including cancer in the clinic. Here we developed a cold-responsive nanoparticle for controlled drug release as a result of the irreversible disassembly of the nanoparticle when cooled to below ∼10 °C. Furthermore, this nanoparticle can be used to generate localized heating under near infrared (NIR) laser irradiation, which can facilitate the warming process after cooling/freezing during cryosurgery. Indeed, the combination of this cold-responsive nanoparticle with ice cooling and NIR laser irradiation can greatly augment cancer destruction both in vitro and in vivo with no evident systemic toxicity.
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Affiliation(s)
- Hai Wang
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA; Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, USA; Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
| | - Pranay Agarwal
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Yutong Liang
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
| | - Jiangsheng Xu
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA; Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, USA; Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
| | - Gang Zhao
- Center for Biomedical Engineering, Department of Electronic Science and Technology, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Katherine H R Tkaczuk
- Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201, USA
| | - Xiongbin Lu
- Department of Medical and Molecular Genetics and Melvin and Bren Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Xiaoming He
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA; Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, USA; Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201, USA; Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, 20742, USA.
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19
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Li X, Su X. Multifunctional smart hydrogels: potential in tissue engineering and cancer therapy. J Mater Chem B 2018; 6:4714-4730. [PMID: 32254299 DOI: 10.1039/c8tb01078a] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In recent years, clinical applications have been proposed for various hydrogel products. Hydrogels can be derived from animal tissues, plant extracts and/or adipose tissue extracellular matrices; each type of hydrogel presents significantly different functional properties and may be used for many different applications, including medical therapies, environmental pollution treatments, and industrial materials. Due to complicated preparation techniques and the complexities associated with the selection of suitable materials, the applications of many host-guest supramolecular polymeric hydrogels are limited. Thus, improvements in the design and construction of smart materials are highly desirable in order to increase the lifetimes of functional materials. Here, we summarize different functional hydrogels and their varied preparation methods and source materials. The multifunctional properties of hydrogels, particularly their unique ability to adapt to certain environmental stimuli, are chiefly based on the incorporation of smart materials. Smart materials may be temperature sensitive, pH sensitive, pH/temperature dual sensitive, photoresponsive or salt responsive and may be used for hydrogel wound repair, hydrogel bone repair, hydrogel drug delivery, cancer therapy, and so on. This review focuses on the recent development of smart hydrogels for tissue engineering applications and describes some of the latest advances in using smart materials to create hydrogels for cancer therapy.
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Affiliation(s)
- Xian Li
- Clinical Medical Research Center of the Affiliated Hospital, Inner Mongolia Medical University, 1 Tong Dao Street, Hohhot 010050, Inner Mongolia Autonomous Region, P. R. China.
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20
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Human Induced Pluripotent Stem Cell-Derived Cardiomyocyte Encapsulating Bioactive Hydrogels Improve Rat Heart Function Post Myocardial Infarction. Stem Cell Reports 2017; 9:1415-1422. [PMID: 28988988 PMCID: PMC5830963 DOI: 10.1016/j.stemcr.2017.09.003] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Revised: 09/01/2017] [Accepted: 09/01/2017] [Indexed: 12/13/2022] Open
Abstract
Tissue engineering offers an exciting possibility for cardiac repair post myocardial infarction. We assessed the effects of combined polyethylene glycol hydrogel (PEG), human induced pluripotent stem cell-derived cardiomyocyte (iPSC-CM), and erythropoietin (EPO) therapy in a rat model of myocardial infarction. PEG with/out iPSC-CMs and EPO; iPSC-CMs in saline; or saline alone was injected into infarcted hearts shortly after infarction. Injection of almost any combination of the therapeutics limited acute elevations in chamber volumes. After 10 weeks, attenuation of ventricular remodeling was identified in all groups that received PEG injections, while ejection fractions were significantly increased in the gel-EPO, cell, and gel-cell-EPO groups. In all treatment groups, infarct thickness was increased and regions of muscle were identified within the scar. However, no grafted cells were detected. Hence, iPSC-CM-encapsulating bioactive hydrogel therapy can improve cardiac function post myocardial infarction and increase infarct thickness and muscle content despite a lack of sustained donor-cell engraftment. Hydrogels tailored to myocardial properties do not impair normal heart function Stem cell-encapsulating bioactive hydrogels can be delivered to infarcted hearts Bioactive hydrogels increased cardiac function, infarct thickness, and muscle content Cell-related benefits were observed even though donor cells did not stably engraft
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21
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Wang H, Agarwal P, Xiao Y, Peng H, Zhao S, Liu X, Zhou S, Li J, Liu Z, He X. A Nano-In-Micro System for Enhanced Stem Cell Therapy of Ischemic Diseases. ACS CENTRAL SCIENCE 2017; 3:875-885. [PMID: 28852702 PMCID: PMC5571461 DOI: 10.1021/acscentsci.7b00213] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Indexed: 05/12/2023]
Abstract
Stem cell therapy holds great potential for treating ischemic diseases. However, contemporary methods for local stem cell delivery suffer from poor cell survival/retention after injection. We developed a unique multiscale delivery system by encapsulating therapeutic agent-laden nanoparticles in alginate hydrogel microcapsules and further coentrapping the nano-in-micro capsules with stem cells in collagen hydrogel. The multiscale system exhibits significantly higher mechanical strength and stability than pure collagen hydrogel. Moreover, unlike nanoparticles, the nano-in-micro capsules do not move with surrounding body fluid and are not taken up by the cells. This allows a sustained and localized release of extracellular epidermal growth factor (EGF), a substance that could significantly enhance the proliferation of mesenchymal stem cells while maintaining their multilineage differentiation potential via binding with its receptors on the stem cell surface. As a result, the multiscale system significantly improves the stem cell survival at 8 days after implantation to ∼70% from ∼4-7% for the conventional system with nanoparticle-encapsulated EGF or free EGF in collagen hydrogel. After injecting into the ischemic limbs of mice, stem cells in the multiscale system facilitate tissue regeneration to effectively restore ∼100% blood perfusion in 4 weeks without evident side effects.
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Affiliation(s)
- Hai Wang
- Department of Biomedical Engineering, Comprehensive Cancer Center, Davis Heart and Lung
Research Institute, and Division of Cardiovascular Medicine,
and Department of Veterinary
Biosciences, The Ohio State University, Columbus, Ohio 43210, United States
| | - Pranay Agarwal
- Department of Biomedical Engineering, Comprehensive Cancer Center, Davis Heart and Lung
Research Institute, and Division of Cardiovascular Medicine,
and Department of Veterinary
Biosciences, The Ohio State University, Columbus, Ohio 43210, United States
| | - Yichao Xiao
- Department of Biomedical Engineering, Comprehensive Cancer Center, Davis Heart and Lung
Research Institute, and Division of Cardiovascular Medicine,
and Department of Veterinary
Biosciences, The Ohio State University, Columbus, Ohio 43210, United States
- Department of Burns and Plastic Surgery, The Third
Xiangya Hospital and Department of Cardiology,
The Second Xiangya Hospital, Central South
University, Changsha, Hunan 410013, P.R. China
| | - Hao Peng
- Department of Biomedical Engineering, Comprehensive Cancer Center, Davis Heart and Lung
Research Institute, and Division of Cardiovascular Medicine,
and Department of Veterinary
Biosciences, The Ohio State University, Columbus, Ohio 43210, United States
- Department of Burns and Plastic Surgery, The Third
Xiangya Hospital and Department of Cardiology,
The Second Xiangya Hospital, Central South
University, Changsha, Hunan 410013, P.R. China
| | - Shuting Zhao
- Department of Biomedical Engineering, Comprehensive Cancer Center, Davis Heart and Lung
Research Institute, and Division of Cardiovascular Medicine,
and Department of Veterinary
Biosciences, The Ohio State University, Columbus, Ohio 43210, United States
| | - Xuanyou Liu
- Department of Biomedical Engineering, Comprehensive Cancer Center, Davis Heart and Lung
Research Institute, and Division of Cardiovascular Medicine,
and Department of Veterinary
Biosciences, The Ohio State University, Columbus, Ohio 43210, United States
| | - Shenghua Zhou
- Department of Burns and Plastic Surgery, The Third
Xiangya Hospital and Department of Cardiology,
The Second Xiangya Hospital, Central South
University, Changsha, Hunan 410013, P.R. China
| | - Jianrong Li
- Department of Biomedical Engineering, Comprehensive Cancer Center, Davis Heart and Lung
Research Institute, and Division of Cardiovascular Medicine,
and Department of Veterinary
Biosciences, The Ohio State University, Columbus, Ohio 43210, United States
| | - Zhenguo Liu
- Department of Biomedical Engineering, Comprehensive Cancer Center, Davis Heart and Lung
Research Institute, and Division of Cardiovascular Medicine,
and Department of Veterinary
Biosciences, The Ohio State University, Columbus, Ohio 43210, United States
| | - Xiaoming He
- Department of Biomedical Engineering, Comprehensive Cancer Center, Davis Heart and Lung
Research Institute, and Division of Cardiovascular Medicine,
and Department of Veterinary
Biosciences, The Ohio State University, Columbus, Ohio 43210, United States
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