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Winters C, Carsi M, Sanchis MJ, Culebras M, Collins MN. On the design of lignin reinforced acrylic acid/hyaluronic acid adhesive hydrogels with conductive PEDOT:HA nanoparticles. Int J Biol Macromol 2024; 273:133093. [PMID: 38866291 DOI: 10.1016/j.ijbiomac.2024.133093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 05/19/2024] [Accepted: 06/09/2024] [Indexed: 06/14/2024]
Abstract
Hydrogels are of great importance in biomedical engineering. They possess the ability to mimic bodily soft tissues, and this allows exciting possibilities for applications such as tissue engineering, drug delivery and wound healing, however much work remains on stability and mechanical robustness to allow for translation to clinical applications. The work herein describes the synthesis and analysis of a biocompatible, versatile hydrogel that has tailorable swelling, high stability when swollen and thermal stability. The synthesis methods used produce a hydrogel with high elasticity, good mechanical properties and rapid crosslinking whilst displaying biocompatibility, adhesion, and conductivity. It has been shown that cell viability in the samples is above 80 % in all cases, a Young's Modulus of up to 85 kPa and high swelling degrees were achieved. These materials show potential for use in numerous applications such as adhesive sensors, skin grafts and drug delivery systems.
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Affiliation(s)
- Caitriona Winters
- Stokes Labs, Bernal Institute, School of Engineering, University of Limerick, Ireland
| | - Marta Carsi
- Instituto de Automática E Informática Industrial, Universitat Politècnica de Valencia, 46022, Valencia, Spain
| | - Maria J Sanchis
- Departamento de Termodinámica Aplicada, Instituto Tecnológico de La Energía, Universitat Politècnica de València, Camí de Vera S/N, 46022, Valencia, Spain
| | - Mario Culebras
- Institute of Material Science (ICMUV), University of Valencia, 46980, Spain
| | - Maurice N Collins
- Stokes Labs, Bernal Institute, School of Engineering, University of Limerick, Ireland; Health Research Institute, University of Limerick, Ireland; SFI AMBER Centre, University of Limerick, Ireland.
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2
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Liu Y, Zhao Z, Guo C, Huang Z, Zhang W, Ma F, Wang Z, Kong Q, Wang Y. Application and development of hydrogel biomaterials for the treatment of intervertebral disc degeneration: a literature review. Front Cell Dev Biol 2023; 11:1286223. [PMID: 38130952 PMCID: PMC10733535 DOI: 10.3389/fcell.2023.1286223] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 11/24/2023] [Indexed: 12/23/2023] Open
Abstract
Low back pain caused by disc herniation and spinal stenosis imposes an enormous medical burden on society due to its high prevalence and refractory nature. This is mainly due to the long-term inflammation and degradation of the extracellular matrix in the process of intervertebral disc degeneration (IVDD), which manifests as loss of water in the nucleus pulposus (NP) and the formation of fibrous disc fissures. Biomaterial repair strategies involving hydrogels play an important role in the treatment of intervertebral disc degeneration. Excellent biocompatibility, tunable mechanical properties, easy modification, injectability, and the ability to encapsulate drugs, cells, genes, etc. make hydrogels good candidates as scaffolds and cell/drug carriers for treating NP degeneration and other aspects of IVDD. This review first briefly describes the anatomy, pathology, and current treatments of IVDD, and then introduces different types of hydrogels and addresses "smart hydrogels". Finally, we discuss the feasibility and prospects of using hydrogels to treat IVDD.
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Affiliation(s)
| | | | | | | | | | | | | | - Qingquan Kong
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yu Wang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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3
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Wang Y, Kang H, Hu J, Chen H, Zhou H, Wang Y, Ke H. Preparation of metal-organic framework combined with Portulaca oleracea L. extract electrostatically spun nanofiber membranes delayed release wound dressing. RSC Adv 2023; 13:21633-21642. [PMID: 37476048 PMCID: PMC10354497 DOI: 10.1039/d3ra01777j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 06/25/2023] [Indexed: 07/22/2023] Open
Abstract
In this study, we prepared a polyacrylonitrile (PAN) composite nanofiber membrane comprising Portulaca oleracea L. extract (POE) and a zinc-based metal-organic framework (MOF) by an in situ growth method as a potentially new type of wound dressing with a slow drug-release effect, to solve the problem of the burst release of drugs in wound dressings. The effects of the MOF and POE doping on the nanofiber membranes were examined using scanning electron microscopy (SEM) and FTIR spectroscopy. SEM analysis revealed the dense and uniform attachment of MOF particles to the surface of the nanofiber membrane, while FTIR spectroscopy confirmed the successful fusion of MOF and POE. Furthermore, investigations into the water contact angle and swelling property demonstrated that the incorporation of the MOF and POE enhanced the hydrophilicity of the material. The results of the in vitro release test showed that the cumulative release rate for PAN/MOF/POE60 decreased from 66.5 ± 2.34% to 32.18 ± 1.31% in the initial 4 h and from 90.54 ± 0.79% to 65.92 ± 1.95% in 72 h compared to PAN/POE, indicating a slowing down of the drug release. In addition, the antimicrobial properties of the fiber membranes were evaluated by the disc diffusion method, and it was evident that the PAN/MOF/POE nanofibers exhibited strong inhibition against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). The antioxidant properties of the nanofiber membranes loaded with POE were further validated through the DPPH radical scavenging test. These findings highlight the potential application of the developed nanofiber membranes in wound dressings, offering controlled and sustained drug-release capabilities.
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Affiliation(s)
- Yize Wang
- College of Textile and Clothing, Xinjiang University No. 666, Shengli Road, Tianshan District Urumchi 830046 China
| | - Hua Kang
- College of Textile and Clothing, Xinjiang University No. 666, Shengli Road, Tianshan District Urumchi 830046 China
| | - Jao Hu
- College of Textile and Clothing, Xinjiang University No. 666, Shengli Road, Tianshan District Urumchi 830046 China
| | - Heming Chen
- College of Textile and Clothing, Xinjiang University No. 666, Shengli Road, Tianshan District Urumchi 830046 China
| | - Huimin Zhou
- College of Textile and Clothing, Xinjiang University No. 666, Shengli Road, Tianshan District Urumchi 830046 China
| | - Ying Wang
- College of Textile and Clothing, Xinjiang University No. 666, Shengli Road, Tianshan District Urumchi 830046 China
| | - Huizhen Ke
- Fujian Engineering Research Center for Textile and Clothing, Faculty of Clothing and Design, Fujian Key Laboratory of Novel Functional Textile Fibers and Materials, Minjiang University Fuzhou 350108 Fujian China
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Iaconisi GN, Lunetti P, Gallo N, Cappello AR, Fiermonte G, Dolce V, Capobianco L. Hyaluronic Acid: A Powerful Biomolecule with Wide-Ranging Applications-A Comprehensive Review. Int J Mol Sci 2023; 24:10296. [PMID: 37373443 DOI: 10.3390/ijms241210296] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/08/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
Hyaluronic acid (HA) is a glycosaminoglycan widely distributed in the human body, especially in body fluids and the extracellular matrix of tissues. It plays a crucial role not only in maintaining tissue hydration but also in cellular processes such as proliferation, differentiation, and the inflammatory response. HA has demonstrated its efficacy as a powerful bioactive molecule not only for skin antiaging but also in atherosclerosis, cancer, and other pathological conditions. Due to its biocompatibility, biodegradability, non-toxicity, and non-immunogenicity, several HA-based biomedical products have been developed. There is an increasing focus on optimizing HA production processes to achieve high-quality, efficient, and cost-effective products. This review discusses HA's structure, properties, and production through microbial fermentation. Furthermore, it highlights the bioactive applications of HA in emerging sectors of biomedicine.
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Affiliation(s)
- Giorgia Natalia Iaconisi
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy
| | - Paola Lunetti
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy
| | - Nunzia Gallo
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy
| | - Anna Rita Cappello
- Department of Pharmacy, Health, and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Giuseppe Fiermonte
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, 70125 Bari, Italy
| | - Vincenza Dolce
- Department of Pharmacy, Health, and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Loredana Capobianco
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy
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Sekar MP, Suresh S, Zennifer A, Sethuraman S, Sundaramurthi D. Hyaluronic Acid as Bioink and Hydrogel Scaffolds for Tissue Engineering Applications. ACS Biomater Sci Eng 2023. [PMID: 37115515 DOI: 10.1021/acsbiomaterials.3c00299] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Bioprinting is an additive manufacturing technique that focuses on developing living tissue constructs using bioinks. Bioink is crucial in determining the stability of printed patterns, which remains a major challenge in bioprinting. Thus, the choices of bioink composition, modifications, and cross-linking methods are being continuously researched to augment the clinical translation of bioprinted constructs. Hyaluronic acid (HA) is a naturally occurring polysaccharide with the repeating unit of N-acetyl-glucosamine and d-glucuronic acid disaccharides. It is present in the extracellular matrix (ECM) of tissues (skin, cartilage, nerve, muscle, etc.) with a wide range of molecular weights. Due to the nature of its chemical structure, HA could be easily subjected to chemical modifications and cross-linking that would enable better printability and stability. These interesting properties have made HA an ideal choice of bioinks for developing tissue constructs for regenerative medicine applications. In this Review, the physicochemical properties, reaction chemistry involved in various cross-linking strategies, and biomedical applications of HA have been elaborately discussed. Further, the features of HA bioinks, emerging strategies in HA bioink preparations, and their applications in 3D bioprinting have been highlighted. Finally, the current challenges and future perspectives in the clinical translation of HA-based bioinks are outlined.
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Affiliation(s)
- Muthu Parkkavi Sekar
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Tamil Nadu - 613 401, India
| | - Shruthy Suresh
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Tamil Nadu - 613 401, India
| | - Allen Zennifer
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Tamil Nadu - 613 401, India
| | - Swaminathan Sethuraman
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Tamil Nadu - 613 401, India
| | - Dhakshinamoorthy Sundaramurthi
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Tamil Nadu - 613 401, India
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Zhang K, Wu D, Chang L, Duan W, Wang Y, Li W, Qin J. Cellulose based self-healing hydrogel through Boronic Ester connections for wound healing and antitumor applications. Int J Biol Macromol 2023; 230:123294. [PMID: 36649869 DOI: 10.1016/j.ijbiomac.2023.123294] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 12/22/2022] [Accepted: 01/12/2023] [Indexed: 01/15/2023]
Abstract
The application of biodegradable hydrogels in medical field has drawn great attention because their networked structure provided ideal spaces for drug loading and cell growth. In this research, the boronic acid was coupled onto carboxyethyl cellulose (CMC) to synthesize boronic acid grafted CMC (CMC-BA) conveniently and self-healing hydrogel was fabricated with polyvinyl alcohol (PVA) crosslinking through dynamic boronic ester bond. The CMC-BA/PVA hydrogel showed good biocompatibility and could be degraded by cellulase and in vivo. The hydrogel formed fast fit for localized injection to cover the irregular wounds and localize the antitumor drugs to the tumor site. The in vivo wound repairing experiment revealed the hydrogel could form airtight adhesion to the wound site to reduce blood loss and accelerate the wound repairing rate. The hydrogel as a drug release carrier also reduced the acute in vivo toxicity of DOX with antitumor performance well preserved through a controlled release profile. Based on the above advantages, the CMC-based hydrogel with boronic ester connection should have great potential in biomedical areas with profitable future.
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Affiliation(s)
- Kaiyue Zhang
- College of Chemistry and Environmental Science, Hebei University, Baoding City, Hebei Province 071002, China
| | - Di Wu
- Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-Autoimmune Diseases in Hebei Province, Hebei University, Baoding City, Hebei Province 071002, China
| | - Limin Chang
- College of Chemistry and Environmental Science, Hebei University, Baoding City, Hebei Province 071002, China
| | - Wenhao Duan
- College of Chemistry and Environmental Science, Hebei University, Baoding City, Hebei Province 071002, China
| | - Yong Wang
- Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-Autoimmune Diseases in Hebei Province, Hebei University, Baoding City, Hebei Province 071002, China
| | - Wenjuan Li
- Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-Autoimmune Diseases in Hebei Province, Hebei University, Baoding City, Hebei Province 071002, China
| | - Jianglei Qin
- College of Chemistry and Environmental Science, Hebei University, Baoding City, Hebei Province 071002, China; Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-Autoimmune Diseases in Hebei Province, Hebei University, Baoding City, Hebei Province 071002, China.
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Water-Absorbing Bioadhesive Poly(Acrylic Acid)/Polyvinylpyrrolidone Complex Sponge for Hemostatic Agents. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 9:bioengineering9120755. [PMID: 36550961 PMCID: PMC9774169 DOI: 10.3390/bioengineering9120755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/22/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Poly(acrylic acid) (PAA) is a water-soluble synthetic polymer with tissue-adhesive properties. When PAA is mixed with polyvinylpyrrolidone (PVP) in water, it forms a water-insoluble precipitate that neither swells nor adheres to tissues. METHODS AND RESULTS We developed a novel solid/solution interface complexation method to obtain a water-swellable PAA/PVP complex. First, PAA solution was dried up in a vessel to form a film. The PAA film was then immersed in an aqueous PVP solution to obtain a highly swollen PAA/PVP hydrogel. Heat drying of the hydrogel yielded a transparent film, while freeze-drying the hydrogel provided a soft sponge. Both the PAA/PVP film and sponge could be re-swelled by water to obtain a bioadhesive gel. A relatively larger specific surface area of the sponge than that of the film led to a more rapid swelling and water absorption behavior and quick adhesion to tissues. The addition of hyaluronic acid (HA) improved the mechanical characteristics of the sponges. PAA/PVP/HA sponges had low cytotoxicity, and they exhibited high hemostatic efficiency in clinical studies after dialysis treatment or tooth extraction, even in patients on antithrombotic drugs. CONCLUSIONS Such bioadhesive materials consisting of low-toxicity polymers have a high potential for use in medical hemostatic devices.
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Liu Z, Fu C. Application of single and cooperative different delivery systems for the treatment of intervertebral disc degeneration. Front Bioeng Biotechnol 2022; 10:1058251. [PMID: 36452213 PMCID: PMC9702580 DOI: 10.3389/fbioe.2022.1058251] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/01/2022] [Indexed: 11/07/2023] Open
Abstract
Intervertebral disc (IVD) degeneration (IDD) is the most universal pathogenesis of low back pain (LBP), a prevalent and costly medical problem across the world. Persistent low back pain can seriously affect a patient's quality of life and even lead to disability. Furthermore, the corresponding medical expenses create a serious economic burden to both individuals and society. Intervertebral disc degeneration is commonly thought to be related to age, injury, obesity, genetic susceptibility, and other risk factors. Nonetheless, its specific pathological process has not been completely elucidated; the current mainstream view considers that this condition arises from the interaction of multiple mechanisms. With the development of medical concepts and technology, clinicians and scientists tend to intervene in the early or middle stages of intervertebral disc degeneration to avoid further aggravation. However, with the aid of modern delivery systems, it is now possible to intervene in the process of intervertebral disc at the cellular and molecular levels. This review aims to provide an overview of the main mechanisms associated with intervertebral disc degeneration and the delivery systems that can help us to improve the efficacy of intervertebral disc degeneration treatment.
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Affiliation(s)
- Zongtai Liu
- Department of Orthopedics, Affiliated Hospital of Beihua University, Jilin, China
| | - Changfeng Fu
- Department of Spine Surgery, First Hospital of Jilin University, Changchun, China
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Luneva O, Olekhnovich R, Uspenskaya M. Bilayer Hydrogels for Wound Dressing and Tissue Engineering. Polymers (Basel) 2022; 14:polym14153135. [PMID: 35956650 PMCID: PMC9371176 DOI: 10.3390/polym14153135] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 11/30/2022] Open
Abstract
A large number of different skin diseases such as hits, acute, and chronic wounds dictate the search for alternative and effective treatment options. The wound healing process requires a complex approach, the key step of which is the choice of a dressing with controlled properties. Hydrogel-based scaffolds can serve as a unique class of wound dressings. Presented on the commercial market, hydrogel wound dressings are not found among proposals for specific cases and have a number of disadvantages—toxicity, allergenicity, and mechanical instability. Bilayer dressings are attracting great attention, which can be combined with multifunctional properties, high criteria for an ideal wound dressing (antimicrobial properties, adhesion and hemostasis, anti-inflammatory and antioxidant effects), drug delivery, self-healing, stimulus manifestation, and conductivity, depending on the preparation and purpose. In addition, advances in stem cell biology and biomaterials have enabled the design of hydrogel materials for skin tissue engineering. To improve the heterogeneity of the cell environment, it is possible to use two-layer functional gradient hydrogels. This review summarizes the methods and application advantages of bilayer dressings in wound treatment and skin tissue regeneration. Bilayered hydrogels based on natural as well as synthetic polymers are presented. The results of the in vitro and in vivo experiments and drug release are also discussed.
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Ito T, Yamaguchi S, Soga D, Yoshimoto T, Koyama Y. Preparation of a Bioadhesive Poly(Acrylic Acid)/Polyvinylpyrrolidone Complex Gel and Its Clinical Effect on Dental Hemostasis. Gels 2022; 8:gels8080462. [PMID: 35892721 PMCID: PMC9394286 DOI: 10.3390/gels8080462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/19/2022] [Accepted: 07/21/2022] [Indexed: 12/04/2022] Open
Abstract
Poly(acrylic acid) (PAA) is a water-soluble synthetic polymer that exhibits bioadhesive properties and has been applied in various novel medical devices, such as drug-delivery carriers and hemostatic agents. PAA forms a water-insoluble complex when mixed with polyvinylpyrrolidone (PVP). If PAA and PVP are mixed in water, they form an aggregated precipitate, which neither swells nor adheres to tissues. The formation of the hydrophobic complex was caused by hydrophobic interactions between the main chains of both polymers aligned the same as a zipper. To hinder the zipper-like alignment of the polymer main chains, hyaluronic acid (HA), a macromolecular viscous polysaccharide, was added to the PVP solution prior to complex formation. When the initial concentration of PAA was lower than 0.05%, HA effectively prevented the aggregation of PAA/PVP complexes and resulted in a slightly clouded suspension. Freeze-drying of the mixture yielded a soft white sponge, which could immediately swell in water to form a highly bioadhesive hydrogel. The PAA/PVP complex prepared with HA exhibited high hemostatic efficiency in clinical studies, even in patients on antithrombotic drugs.
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Affiliation(s)
- Tomoko Ito
- Obara Hospital Research Institute, 3-28-16, Honcho, Nakano-ku, Tokyo 164-0012, Japan
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan;
- Correspondence: (T.I.); (Y.K.)
| | - Shingo Yamaguchi
- Japan Anti-tuberculosis Association, Shin-Yamanote Hospital, 3-6-1, Suwa-cho, Higashimurayama, Tokyo 189-0021, Japan; (S.Y.); (D.S.)
| | - Daisuke Soga
- Japan Anti-tuberculosis Association, Shin-Yamanote Hospital, 3-6-1, Suwa-cho, Higashimurayama, Tokyo 189-0021, Japan; (S.Y.); (D.S.)
| | - Takayuki Yoshimoto
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan;
| | - Yoshiyuki Koyama
- Obara Hospital Research Institute, 3-28-16, Honcho, Nakano-ku, Tokyo 164-0012, Japan
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan;
- Correspondence: (T.I.); (Y.K.)
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Gao XD, Zhang XB, Zhang RH, Yu DC, Chen XY, Hu YC, Chen L, Zhou HY. Aggressive strategies for regenerating intervertebral discs: stimulus-responsive composite hydrogels from single to multiscale delivery systems. J Mater Chem B 2022; 10:5696-5722. [PMID: 35852563 DOI: 10.1039/d2tb01066f] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As our research on the physiopathology of intervertebral disc degeneration (IVD degeneration, IVDD) has advanced and tissue engineering has rapidly evolved, cell-, biomolecule- and nucleic acid-based hydrogel grafting strategies have been widely investigated for their ability to overcome the harsh microenvironment of IVDD. However, such single delivery systems suffer from excessive external dimensions, difficult performance control, the need for surgical implantation, and difficulty in eliminating degradation products. Stimulus-responsive composite hydrogels have good biocompatibility and controllable mechanical properties and can undergo solution-gel phase transition under certain conditions. Their combination with ready-to-use particles to form a multiscale delivery system may be a breakthrough for regenerative IVD strategies. In this paper, we focus on summarizing the progress of research on the stimulus response mechanisms of regenerative IVD-related biomaterials and their design as macro-, micro- and nanoparticles. Finally, we discuss multi-scale delivery systems as bioinks for bio-3D printing technology for customizing personalized artificial IVDs, which promises to take IVD regenerative strategies to new heights.
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Affiliation(s)
- Xi-Dan Gao
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, P. R. China.
| | - Xiao-Bo Zhang
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiao tong University, Shaanxi 710000, P. R. China.
| | - Rui-Hao Zhang
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, P. R. China.
| | - De-Chen Yu
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, P. R. China.
| | - Xiang-Yi Chen
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, P. R. China.
| | - Yi-Cun Hu
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, P. R. China.
| | - Lang Chen
- Department of Gastrointestinal Surgery, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, P. R. China
| | - Hai-Yu Zhou
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, P. R. China.
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