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Yang Y, Xu C, Xu S, Li Y, Chen K, Yang T, Bao J, Xu Y, Chen J, Mao C, Chen L, Sun W. Injectable hydrogels activated with copper sulfide nanoparticles for enhancing spatiotemporal sterilization and osteogenesis in periodontal therapy. Biomater Sci 2024. [PMID: 38711336 DOI: 10.1039/d3bm02134c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Developing biomaterials capable of promoting bone regeneration in bacteria-infected sites is of utmost urgency for periodontal disease therapies. Here we produce a hybrid hydrogel by integrating CuS nanoparticles (CuSNPs), which could kill bacteria through photothermal therapy (PTT) triggered by a near infrared (NIR) light, and a gelatin methacryloyl (GelMA) hydrogel, which is injectable and biocompatible. Specifically, CuSNPs were precipitated by chitosan (CS) firstly, then grafted with methacrylic anhydride (MA) to form CuSNP@CS-MA, which was photo-crosslinked with GelMA to synthesize hybrid hydrogels (GelMA/CuSNP). The hybrid hydrogels exhibited a broad-spectrum antibacterial property that could be spatiotemprorally manipulated through applying a NIR light. Their mechanical properties were adjustable by controlling the concentration of CuSNPs, enabling the hydrogels to become more adapted to the oral diseases. Meanwhile, the hybrid hydrogels showed good cytocompatibility in vitro and improved hemostasis in vivo. Moreover, they accelerated alveolar osteogenesis and vascular genesis, successfully treating periodontis in four weeks in a rat model. GelMA/CuSNP hydrogels showed a broad-spectrum sterilization ability via PTT in vitro and outstanding antibacterial property in vivo, suggesting that the hybrid hydrogels could function in the challenging, bacteria-rich, oral environment. Such injectable hybrid hydrogels, capable of achieving both facilitated osteogenesis and NIR-inducible sterilization, represent a new biomaterial for treating periodontitis.
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Affiliation(s)
- Yuting Yang
- Department of Periodontology, The Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, P.R. China.
| | - Chunbin Xu
- Department of Periodontology, The Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, P.R. China.
| | - Shengqian Xu
- Department of Periodontology, The Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, P.R. China.
| | - Yan Li
- Department of Periodontology, The Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, P.R. China.
| | - Ke'er Chen
- Department of Periodontology, The Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, P.R. China.
| | - Tao Yang
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Jiaqi Bao
- Department of Periodontology, The Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, P.R. China.
| | - Yajing Xu
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Jingyao Chen
- Facility for Histomorphology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310027, China
| | - Chuanbin Mao
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China.
| | - Lili Chen
- Department of Periodontology, The Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, P.R. China.
| | - Weilian Sun
- Department of Periodontology, The Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, P.R. China.
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Li J, Zhao M, Liang J, Geng Z, Fan Y, Sun Y, Zhang X. Hollow Copper Sulfide Photothermal Nanodelivery Platform Boosts Angiogenesis of Diabetic Wound by Scavenging Reactive Oxygen Species. ACS APPLIED MATERIALS & INTERFACES 2024; 16:4395-4407. [PMID: 38247262 DOI: 10.1021/acsami.3c15593] [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: 01/23/2024]
Abstract
Sharply rising oxidative stress and ineffectual angiogenesis have imposed restrictions on diabetic wound healing. Here, a photothermal-responsive nanodelivery platform (HHC) was prepared by peroxidase (CAT)-loaded hollow copper sulfide dispersed in photocurable methacrylamide hyaluronan. The HHC could scavenge reactive oxygen species (ROS) and promote angiogenesis by photothermally driven CAT and Cu2+ release. Under near-infrared light irradiation, the HHC presented safe photothermal performance (<43 °C), efficient bacteriostatic ability against E. coli and S. aureus. It could rapidly release CAT into the external environment for decomposing H2O2 and oxygen generation to alleviate oxidative stress while promoting fibroblast migration and VEGF protein expression of endothelial cells by reducing intracellular ROS levels. The nanodelivery platform presented satisfactory therapeutic effects on murine diabetic wound healing by modulating tissue inflammation, promoting collagen deposition and increasing vascularization in the neodermis. This HHC provided a viable strategy for diabetic wound dressing design.
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Affiliation(s)
- Jiadong Li
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P. R. China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P. R. China
| | - Mingda Zhao
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P. R. China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P. R. China
| | - Jie Liang
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P. R. China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P. R. China
- Sichuan Testing Centre for Biomaterials and Medical Devices, 29# Wangjiang Road, Chengdu, Sichuan 610064, P. R. China
| | - Zhen Geng
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, P. R. China
- Organoid Research Center, Shanghai University, Shanghai 200444, P. R. China
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P. R. China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P. R. China
| | - Yong Sun
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P. R. China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P. R. China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P. R. China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P. R. China
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Escudero-Duch C, Muñoz-Moreno L, Martin-Saavedra F, Sanchez-Casanova S, Lerma-Juarez MA, Vilaboa N. Remote control of transgene expression using noninvasive near-infrared irradiation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2023; 242:112697. [PMID: 36963296 DOI: 10.1016/j.jphotobiol.2023.112697] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 03/26/2023]
Abstract
This study investigated whether noninvasive near-infrared (NIR) energy could be transduced into heat in deep-seated organs in which adenovirus type-5 vectors tend to accumulate, thereby activating heat shock protein (HSP) promoter-mediated transgene expression, without local administration of photothermal agents. NIR irradiation of the subdiaphragmatic and left dorsocranial part of the abdominal cavity of adult immunocompetent C3H/HeNRj mice with an 808-nm laser effectively increased the temperature of the irradiated regions of the liver and spleen, respectively, resulting in the accumulation of the heat-inducible HSP70 protein. Spatial control of transgene expression was achieved in the NIR-irradiated regions of the mice administered an adenoviral vector carrying a firefly luciferase (fLuc) coding sequence controlled by a human HSP70B promoter, as assessed by bioluminescence and immunohistochemistry analyses. Levels of reporter gene expression were modulated by controlling NIR power density. Spatial control of transgene expression through NIR-focused activation of the HSP70B promoter, as well as temporal regulation by administering rapamycin was achieved in the spleens of mice inoculated with an adenoviral vector encoding a rapamycin-dependent transactivator driven by the HSP70B promoter and an adenoviral vector carrying a fLuc coding sequence controlled by the rapamycin-activated transactivator. Mice that were administered rapamycin and exposed to NIR light expressed fLuc activity in the splenic region, whereas no activity was detected in mice that were only administered rapamycin or vehicle or only NIR-irradiated. Thus, in the absence of any exogenously supplied photothermal material, remote control of heat-induced transgene expression can be achieved in the liver and spleen by means of noninvasive NIR irradiation.
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Affiliation(s)
- Clara Escudero-Duch
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Laura Muñoz-Moreno
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Francisco Martin-Saavedra
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Silvia Sanchez-Casanova
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Miguel Angel Lerma-Juarez
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Nuria Vilaboa
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain.
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Chu Y, Chai S, Li F, Han C, Sui X, Liu T. Combined Strategy of Wound Healing Using Thermo-Sensitive PNIPAAm Hydrogel and CS/PVA Membranes: Development and In-Vivo Evaluation. Polymers (Basel) 2022; 14:polym14122454. [PMID: 35746028 PMCID: PMC9230777 DOI: 10.3390/polym14122454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/02/2022] [Accepted: 06/10/2022] [Indexed: 02/07/2023] Open
Abstract
Past studies have shown that the hot spring effect can promote wound healing. Mild thermal stimulation and metal ions can promote angiogenesis. In this study, the hot spring effect was simulated by thermosensitive PNIPAAm hydrogel loaded with copper sulfide nanoparticles. Heat stimulation could be generated through near-infrared irradiation, and copper ions solution could be pulsed. On the other hand, the CS/PVA nanofiber membrane was attached to the bottom of the hydrogel to simulate the extracellular matrix structure, thus improving the wound healing ability. The CS/PVA nanofiber membrane was prepared by electrospinning, and the appropriate prescription and process parameters were determined. The nanofiber membrane has uniform pore size, good water absorption and permeability. The poor mechanical properties of PNIPAAm hydrogel were improved by adding inorganic clay. The temperature of the hydrogel loaded with CuS nanoparticles reached 40 °C under near-infrared light irradiation for 20 min, and the release rate of Cu2+ reached 26.89%. The wound-healing rate of the rats in the combined application group reached 79.17% at 13 days, demonstrating superior results over the other control groups. Histological analyses show improved inflammatory response at the healed wound area. These results indicate that this combined application approach represents a promising wound treatment strategy.
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Shen KH, Lu CH, Kuo CY, Li BY, Yeh YC. Smart near infrared-responsive nanocomposite hydrogels for therapeutics and diagnostics. J Mater Chem B 2021; 9:7100-7116. [PMID: 34212171 DOI: 10.1039/d1tb00980j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Nanocomposite (NC) hydrogels are emerging biomaterials that possess desirable and defined properties and functions for therapeutics and diagnostics. Particularly, nanoparticles (NPs) are employed as stimulus-transducers in NC hydrogels to facilitate the treatment process by providing controllable structural change and payload release under internal and external simulations. Among the various external stimuli, near-infrared (NIR) light has attracted considerable interest due to its minimal photo-damage, deep tissue penetration, low auto-fluorescence in living systems, facile on/off switch, easy remote and spatiotemporal control. In this study, we discuss four types of transducing nanomaterials used in NIR-responsive NC hydrogels, including metal-based nanoparticles, carbon-based nanomaterials, polydopamine nanoparticles (PDA NPs), and upconversion nanoparticles (UCNPs). This review provides an overview of the current progress in NIR-responsive NC hydrogels, focusing on their preparation, properties, applications, and future prospects.
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Affiliation(s)
- Ke-Han Shen
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan.
| | - Cheng-Hsun Lu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan.
| | - Chih-Yu Kuo
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan.
| | - Bo-Yan Li
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan.
| | - Yi-Cheun Yeh
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan.
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Zhang X, Tan B, Wu Y, Zhang M, Liao J. A Review on Hydrogels with Photothermal Effect in Wound Healing and Bone Tissue Engineering. Polymers (Basel) 2021; 13:2100. [PMID: 34202237 PMCID: PMC8271463 DOI: 10.3390/polym13132100] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/15/2021] [Accepted: 06/19/2021] [Indexed: 02/05/2023] Open
Abstract
Photothermal treatment (PTT) is a promising strategy to deal with multidrug-resistant bacteria infection and promote tissue regeneration. Previous studies demonstrated that hyperthermia can effectively inhibit the growth of bacteria, whereas mild heat can promote cell proliferation, further accelerating wound healing and bone regeneration. Especially, hydrogels with photothermal properties could achieve remotely controlled drug release. In this review, we introduce a photothermal agent hybrid in hydrogels for a photothermal effect. We also summarize the potential mechanisms of photothermal hydrogels regarding antibacterial action, angiogenesis, and osteogenesis. Furthermore, recent developments in photothermal hydrogels in wound healing and bone regeneration applications are introduced. Finally, future application of photothermal hydrogels is discussed. Hydrogels with photothermal effects provide a new direction for wound healing and bone regeneration, and this review will give a reference for the tissue engineering.
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Affiliation(s)
| | | | | | | | - Jinfeng Liao
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; (X.Z.); (B.T.); (Y.W.); (M.Z.)
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7
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Yan F, Lv M, Zhang T, Zhang Q, Chen Y, Liu Z, Wei R, Cai L. Copper-Loaded Biodegradable Bone Wax with Antibacterial and Angiogenic Properties in Early Bone Repair. ACS Biomater Sci Eng 2021; 7:663-671. [PMID: 33502176 DOI: 10.1021/acsbiomaterials.0c01471] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Traditional bone wax has lots of shortcomings such as the risk of infection and inflammation and the ability to hinder osteogenesis that limit its clinical applications. In this study, we designed a novel biodegradable bone wax with desirable angiogenic and antibacterial ability and low foreign body reaction by mixing calcium sulfate, poloxamer, and cupric ions. To evaluate its biocompatibility and angiogenetic effect in vitro, we cultured human umbilical vein endothelial cells (HUVECs) with the indicated bone wax to observe cell viability and vessel-like tubular formation. The bone wax was then implanted in a critical-sized bone defect rat model for 4 and 8 weeks to successfully stimulate angiogenesis in vivo. Finally, the bone wax extract was incubated with Gram-positive Staphylococcus aureus to confirm its antibacterial ability. The copper-loaded biodegradable bone wax overcomes the drawbacks of traditional bone wax and provides a new approach for the treatment of bone injuries.
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Affiliation(s)
- Feifei Yan
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, No. 169, Donghu Road, Wuhan 430071, China
| | - Minchao Lv
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, No. 169, Donghu Road, Wuhan 430071, China
| | - Tie Zhang
- Hubei Osteolink Biomaterial Co., Ltd. (Wuhan Hi-tech Research Center of Medical Tissues), No. 379, Gaoxiner Road, Wuhan 430100, China
| | - Qi Zhang
- Hubei Osteolink Biomaterial Co., Ltd. (Wuhan Hi-tech Research Center of Medical Tissues), No. 379, Gaoxiner Road, Wuhan 430100, China
| | - Yan Chen
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, No. 169, Donghu Road, Wuhan 430071, China
| | - Zhibo Liu
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, No. 169, Donghu Road, Wuhan 430071, China
| | - Renxiong Wei
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, No. 169, Donghu Road, Wuhan 430071, China
| | - Lin Cai
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, No. 169, Donghu Road, Wuhan 430071, China
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Escudero-Duch C, Vilaboa N. Recent efforts in the development of nanomaterials to control transgene expression. Nanomedicine (Lond) 2020; 15:2019-2022. [PMID: 32779525 DOI: 10.2217/nnm-2020-0227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Clara Escudero-Duch
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain.,Hospital Universitario La Paz-IdiPAZ, Madrid, Spain
| | - Nuria Vilaboa
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain.,Hospital Universitario La Paz-IdiPAZ, Madrid, Spain
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Xu XL, Shu GF, Wang XJ, Qi J, Jin FY, Shen QY, Ying XY, Ji JS, Du YZ. Sialic acid-modified chitosan oligosaccharide-based biphasic calcium phosphate promote synergetic bone formation in rheumatoid arthritis therapy. J Control Release 2020; 323:578-590. [PMID: 32376462 DOI: 10.1016/j.jconrel.2020.04.047] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 03/30/2020] [Accepted: 04/29/2020] [Indexed: 12/16/2022]
Abstract
Therapeutic goals for rheumatoid arthritis (RA) consist of inhibiting the inflammatory response and repairing the damaged bone/cartilage. Tissue engineering could achieve both goals, however, it was hindered due to the lack of biologically relevant tissue complexity, limitation in covering the entire polyarthritis lesions and requirement of extra surgical implantation. Integrating nanotechnologies into clinically sized implants represents a major opportunity to overcome these problems. Herein, we designed a sialic acid (SA)-modified chitosan oligosaccharide-based biphasic calcium phosphate (BCP), a biomimetic nanoplatform that could load with methotrexate. We found that SA modification could not only improve the accumulation of the designed organic-inorganic nanoplatform in arthritic paws (34.38% higher than those without SA modification at 48 h), but also cooperate with BCP to exert synergetic mineralization of calcium phosphate, allowing more osteoblasts to attach, proliferate and differentiate. The more differentiated osteoblasts produced 4.46-fold type I collagen and 2.60-fold osteoprotegerin compared to the control group. Besides, the disassembled nanorods released chitosan oligosaccharide-based micelles, revealing a cartilage-protective effect by reducing the loss of glycosaminoglycan. All these improvements contributed to the light inflammatory response and reduced destruction on cartilage/bone. The findings provide a novel strategy for RA therapy via nanometer-scale dimension mimicking the natural tissues.
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Affiliation(s)
- Xiao-Ling Xu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Gao-Feng Shu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui 323000, PR China
| | - Xiao-Juan Wang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Jing Qi
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Fei-Yang Jin
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Qi-Ying Shen
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Xiao-Ying Ying
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China.
| | - Jian-Song Ji
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui 323000, PR China.
| | - Yong-Zhong Du
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China.
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Local delivery of bone morphogenetic protein-2 from near infrared-responsive hydrogels for bone tissue regeneration. Biomaterials 2020; 241:119909. [PMID: 32135355 DOI: 10.1016/j.biomaterials.2020.119909] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 12/27/2022]
Abstract
Achievement of spatiotemporal control of growth factors production remains a main goal in tissue engineering. In the present work, we combined inducible transgene expression and near infrared (NIR)-responsive hydrogels technologies to develop a therapeutic platform for bone regeneration. A heat-activated and dimerizer-dependent transgene expression system was incorporated into mesenchymal stem cells to conditionally control the production of bone morphogenetic protein 2 (BMP-2). Genetically engineered cells were entrapped in hydrogels based on fibrin and plasmonic gold nanoparticles that transduced incident energy of an NIR laser into heat. In the presence of dimerizer, photoinduced mild hyperthermia induced the release of bioactive BMP-2 from NIR-responsive cell constructs. A critical size bone defect, created in calvaria of immunocompetent mice, was filled with NIR-responsive hydrogels entrapping cells that expressed BMP-2 under the control of the heat-activated and dimerizer-dependent gene circuit. In animals that were treated with dimerizer, NIR irradiation of implants induced BMP-2 production in the bone lesion. Induction of NIR-responsive cell constructs conditionally expressing BMP-2 in bone defects resulted in the formation of new mineralized tissue, thus indicating the therapeutic potential of the technological platform.
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Escudero-Duch C, Martin-Saavedra F, Prieto M, Sanchez-Casanova S, Lopez D, Sebastian V, Arruebo M, Santamaria J, Vilaboa N. Gold nanoparticles for the in situ polymerization of near-infrared responsive hydrogels based on fibrin. Acta Biomater 2019; 100:306-315. [PMID: 31568875 DOI: 10.1016/j.actbio.2019.09.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 09/16/2019] [Accepted: 09/26/2019] [Indexed: 12/01/2022]
Abstract
Non-invasiveness and relative safety of photothermal therapy, which enables local hyperthermia of target tissues using a near infrared (NIR) laser, has attracted increasing interest. Due to their biocompatibility, amenability of synthesis and functionalization, gold nanoparticles have been investigated as therapeutic photothermal agents. In this work, hollow gold nanoparticles (HGNP) were coated with poly-l-lysine through the use of COOH-Poly(ethylene glycol)-SH as a covalent linker. The functionalized HGNP, which peak their surface plasmon resonance at 800 nm, can bind thrombin. Thrombin-conjugated HGNP conduct in situ fibrin polymerization, facilitating the process of generating photothermal matrices. Interestingly, the metallic core of thrombin-loaded HGNP fragmentates at physiological temperature. During polymerization process, matrices prepared with thrombin-loaded HGNP were loaded with genetically-modified stem cells that harbour a heat-activated and ligand-dependent gene switch for regulating transgene expression. NIR laser irradiation of resulting cell constructs in the presence of ligand successfully triggered transgene expression in vitro and in vivo. STATEMENT OF SIGNIFICANCE: Current technological development allows synthesis of gold nanoparticles (GNP) in a wide range of shapes and sizes, consistently and at scale. GNP, stable and easily functionalized, show low cytotoxicity and high biocompatibility. Allied to that, GNP present optoelectronic properties that have been exploited in a range of biomedical applications. Following a layer-by-layer functionalization approach, we prepared hollow GNP coated with a positively charged copolymer that enabled thrombin conjugation. The resulting nanomaterial efficiently catalyzed the formation of fibrin hydrogels which convert energy of the near infrared (NIR) into heat. The resulting NIR-responsive hydrogels can function as scaffolding for cells capable of controlled gene expression triggered by optical hyperthermia, thus allowing the deployment of therapeutic gene products in desired spatiotemporal frameworks.
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Affiliation(s)
- Clara Escudero-Duch
- Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, Madrid 28046 Spain; CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Spain
| | - Francisco Martin-Saavedra
- Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, Madrid 28046 Spain; CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Spain.
| | - Martin Prieto
- Departmento de Ingenieria Quimica, Instituto de Nanociencia de Aragon (INA), Universidad de Zaragoza, Campus Rio Ebro. Edificio I+D. C/ Mariano Esquillor s/n, Zaragoza 50018 Spain; CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Spain; Instituto de Ciencia de Materiales de Aragon, Consejo Superior de Investigaciones Cientificas (ICMA-CSIC), Universidad de Zaragoza, Zaragoza 50009 Spain
| | - Silvia Sanchez-Casanova
- Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, Madrid 28046 Spain; CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Spain
| | - Daniel Lopez
- Instituto de Ciencia y Tecnologia de Polimeros, Consejo Superior de Investigaciones Cientificas (ICTP-CSIC), C/ Juan de la Cierva 3, Madrid 28006 Spain
| | - Victor Sebastian
- Departmento de Ingenieria Quimica, Instituto de Nanociencia de Aragon (INA), Universidad de Zaragoza, Campus Rio Ebro. Edificio I+D. C/ Mariano Esquillor s/n, Zaragoza 50018 Spain; CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Spain; Instituto de Ciencia de Materiales de Aragon, Consejo Superior de Investigaciones Cientificas (ICMA-CSIC), Universidad de Zaragoza, Zaragoza 50009 Spain
| | - Manuel Arruebo
- Departmento de Ingenieria Quimica, Instituto de Nanociencia de Aragon (INA), Universidad de Zaragoza, Campus Rio Ebro. Edificio I+D. C/ Mariano Esquillor s/n, Zaragoza 50018 Spain; CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Spain; Instituto de Ciencia de Materiales de Aragon, Consejo Superior de Investigaciones Cientificas (ICMA-CSIC), Universidad de Zaragoza, Zaragoza 50009 Spain
| | - Jesus Santamaria
- Departmento de Ingenieria Quimica, Instituto de Nanociencia de Aragon (INA), Universidad de Zaragoza, Campus Rio Ebro. Edificio I+D. C/ Mariano Esquillor s/n, Zaragoza 50018 Spain; CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Spain; Instituto de Ciencia de Materiales de Aragon, Consejo Superior de Investigaciones Cientificas (ICMA-CSIC), Universidad de Zaragoza, Zaragoza 50009 Spain
| | - Nuria Vilaboa
- Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, Madrid 28046 Spain; CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Spain.
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