1
|
Ren D, Zhang Y, Du B, Wang L, Gong M, Zhu W. An Antibacterial, Conductive Nanocomposite Hydrogel Coupled with Electrical Stimulation for Accelerated Wound Healing. Int J Nanomedicine 2024; 19:4495-4513. [PMID: 38799696 PMCID: PMC11123069 DOI: 10.2147/ijn.s460700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 05/16/2024] [Indexed: 05/29/2024] Open
Abstract
Background Electrical stimulation (ES) can effectively promote skin wound healing; however, single-electrode-based ES strategies are difficult to cover the entire wound area, and the effectiveness of ES is often limited by the inconsistent mechanical properties of the electrode and wound tissue. The above factors may lead to ES treatment is not ideal. Methods A multifunctional conductive hydrogel dressing containing methacrylated gelatin (GelMA), Ti3C2 and collagen binding antimicrobial peptides (V-Os) was developed to improve wound management. Ti3C2 was selected as the electrode component due to its excellent electrical conductivity, the modified antimicrobial peptide V-Os could replace traditional antibiotics to suppress bacterial infections, and GelMA hydrogel was used due to its clinical applicability in wound healing. Results The results showed that this new hydrogel dressing (GelMA@Ti3C2/V-Os) not only has excellent electrical conductivity and biocompatibility but also has a durable and efficient bactericidal effect. The modified antimicrobial peptides V-Os used were able to bind more closely to GelMA hydrogel to exert long-lasting antibacterial effects. The results of cell experiment showed that the GelMA@Ti3C2/V-Os hydrogel dressing could enhance the effect of current stimulation and significantly improve the migration, proliferation and tissue repair related genes expression of fibroblasts. In vitro experiments results showed that under ES, GelMA@Ti3C2/V-Os hydrogel dressing could promote re-epithelialization, enhance angiogenesis, mediate immune response and prevent wound infection. Conclusion This multifunctional nanocomposite hydrogel could provide new strategies for promoting infectious wound healing.
Collapse
Affiliation(s)
- Dawei Ren
- Department of Otorhinolaryngology, the First Hospital of Jilin University, Changchun, People’s Republic of China
| | - Yan Zhang
- Department of Otorhinolaryngology, the First Hospital of Jilin University, Changchun, People’s Republic of China
| | - Bo Du
- Department of Otorhinolaryngology, the First Hospital of Jilin University, Changchun, People’s Republic of China
| | - Lina Wang
- Department of Pediatric Respiration, the First Hospital of Jilin University, Changchun, People’s Republic of China
| | - Meiheng Gong
- Department of Otorhinolaryngology, the First Hospital of Jilin University, Changchun, People’s Republic of China
| | - Wei Zhu
- Department of Otorhinolaryngology, the First Hospital of Jilin University, Changchun, People’s Republic of China
| |
Collapse
|
2
|
Dong Y, Wang Z, Wang J, Sun X, Yang X, Liu G. Mussel-inspired electroactive, antibacterial and antioxidative composite membranes with incorporation of gold nanoparticles and antibacterial peptides for enhancing skin wound healing. J Biol Eng 2024; 18:3. [PMID: 38212854 PMCID: PMC10785445 DOI: 10.1186/s13036-023-00402-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/27/2023] [Indexed: 01/13/2024] Open
Abstract
Large skin wounds are one of the most important health problems in the world. Skin wound repair and tissue regeneration are complex processes involving many physiological signals, and effective wound healing remains an enormous clinical challenge. Therefore, there is an urgent need for a strategy to rapidly kill bacteria, promote cell proliferation and accelerate wound healing. At present, electrical stimulation (ES) is often used in the clinical treatment of skin wounds and can simulate the endogenous biological current of the body and accelerate the repair process of skin wounds. However, a single ES strategy has difficulty covering the entire wound area, which may lead to unsatisfactory therapeutic effects. To overcome this deficiency, it is essential to develop a collaborative treatment strategy that combines ES with other treatments. In this study, gold nanoparticles and antibacterial peptides (Os) were loaded on the surface of poly(lactic-co-glycolic acid) (PLGA) material through the reducibility and adhesion of polydopamine (PDA) and improved the electrical activity, anti-inflammatory, antibacterial and biocompatibility properties of the polymer material. At the same time, this composite membrane material (Os/Au-PDA@PLGA) combined with ES was used in wound therapy to improve the wound healing rate. The results show that the new wound repair material has good biocompatibility and can effectively promote cell proliferation and migration. Through the combined application of gold nanoparticles and antibacterial peptides Os, the polymer materials have more efficient bactericidal and antioxidant effects. The antibacterial experiment results showed that gold nanoparticles could further enhance the antibacterial activity of antibacterial peptides. Furthermore, the Os/Au-PDA@PLGA composite membrane has good hydrophilicity and electrical activity, which can provide a more favorable cell microenvironment for wound healing. In vivo studies using a full-thickness skin defect model in rats showed that the Os/Au-PDA@PLGA composite membrane had a better therapeutic effect than the pure PLGA material. More importantly, the combination of the Os/Au-PDA@PLGA composite with ES significantly accelerated the rate of vascularization and collagen deposition and promoted wound healing compared with non-ES controls. Therefore, the combination of the Au/Os-PDA@PLGA composite membrane with ES may provide a new strategy for the effective treatment of skin wounds.
Collapse
Affiliation(s)
- Yongkang Dong
- Department of Orthopaedic Surgery, The Second Hospital of Jilin University, Changchun, 130041, China
- Department of Vascular Surgery, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Zheng Wang
- Department of Vascular Surgery, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Jiapeng Wang
- Department of Orthopaedic Surgery, Jilin Province FAW General Hospital, Changchun, 130000, China
| | - Xuedi Sun
- Department of Orthopaedic Surgery, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Xiaoyu Yang
- Department of Orthopaedic Surgery, The Second Hospital of Jilin University, Changchun, 130041, China.
| | - Guomin Liu
- Department of Orthopaedic Surgery, The Second Hospital of Jilin University, Changchun, 130041, China.
| |
Collapse
|
3
|
Hou L, Wang W, Wang MK, Song XS. Acceleration of Healing in Full-Thickness Wound by Chitosan-Binding bFGF and Antimicrobial Peptide Modification Chitosan Membrane. Front Bioeng Biotechnol 2022; 10:878588. [PMID: 35547167 PMCID: PMC9081572 DOI: 10.3389/fbioe.2022.878588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 04/05/2022] [Indexed: 11/30/2022] Open
Abstract
Skin wound healing is an important clinical challenge, and the main treatment points are accelerating epidermal regeneration and preventing infection. Therefore, it is necessary to develop a wound dressing that can simultaneously cure bacterial infections and accelerate wound healing. Here, we report a multifunctional composite wound dressing loaded with chitosan (CS)-binding bFGF (CSBD-bFGF) and antimicrobial peptides (P5S9K). First, CS was used as the dressing matrix material, and P5S9K was encapsulated in CS. Then, CSBD-bFGF was designed by combining recombinant DNA technology and tyrosinase treatment and modified on the dressing material surface. The results show that the binding ability of CSBD-bFGF and CS was significantly improved compared with that of commercial bFGF, and CSBD-bFGF could be controllably released from the CS dressing. More importantly, the prepared dressing material showed excellent antibacterial activity in vivo and in vitro and could effectively inhibit the growth of E. coli and S. aureus. Using NIH3T3 cells as cellular models, the results showed that the CSBD-bFGF@CS/P5S9K composite dressing was a friendly material for cell growth. After cells were seeded on the composite dressing surface, collagen-1 (COL-1) and vascular endothelial growth factor (VEGF) genes expression in cells were significantly upregulated. Finally, the full-thickness wound of the rat dorsal model was applied to analyse the tissue repair ability of the composite dressing. The results showed that the composite dressing containing CSBD-bFGF and P5S9K had the strongest ability to repair skin wounds. Therefore, the CSBD-bFGF@CS/P5S9K composite dressing has good antibacterial and accelerated wound healing abilities and has good application prospects in the treatment of skin wounds.
Collapse
Affiliation(s)
| | | | | | - Xue-Song Song
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, China
| |
Collapse
|
4
|
Huang J, Liu X, Sun Y, Huang C, Wang A, Xu J, Zhou H, Li L, Zhou R. Porcine β-defensin 2 confers enhanced resistance to swine flu infection in transgenic pigs and alleviates swine influenza virus-induced apoptosis possibly through interacting with host SLC25A4. Antiviral Res 2022; 201:105292. [PMID: 35341807 DOI: 10.1016/j.antiviral.2022.105292] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 03/12/2022] [Accepted: 03/14/2022] [Indexed: 11/29/2022]
Abstract
Swine influenza virus (SIV) not only brings about great economic losses on the global pig industry, it also poses a significant threat to the public health for its interspecies transmission capacity. Porcine β-defensin 2 (PBD-2) is a host defense peptide and our previous study has shown that PBD-2 inhibits proliferation of enveloped pseudorabies virus both in vitro and in transgenic (TG) mice. The aim of this study is to investigate the possible anti-SIV ability of PBD-2 in a TG pig model created in our previous study. The in-contact challenge trial demonstrated that overexpression of PBD-2 in pigs could efficiently alleviate SIV-associated clinical signs. The SIV titers quantified by EID50 in lung tissues of infected TG pigs were significantly lower than that of wild-type littermates. In vitro, the cell viability assay revealed that PBD-2 mainly interfered with viral entry and post-infection stages. It was further confirmed that PBD-2 could enter porcine tracheal epithelial cells. The proteins interacting with PBD-2 inside host cells were identified with immunoprecipitation and the pathways involved were analyzed. Results showed that PBD-2 could interact with pro-apoptotic solute carrier family 25 member 4 (SLC25A4), also known as adenine nucleotide translocase 1, and thereby inhibited SIV-induced cell apoptosis. The molecular docking analysis suggested that PBD-2 interacted with porcine SLC25A4 mainly through strong hydrogen binding, with the predicted binding affinity being -13.23 kcal/mol. Altogether, these indicate that PBD-2 protects pigs against SIV infection, which may result from its role as a SLC25A4 blocker to alleviate cell apoptosis, providing a novel therapeutic and prophylactic strategy of using PBD-2 to combat SIV.
Collapse
Affiliation(s)
- Jing Huang
- State Key Laboratory of Agricultural Microbiology, Cooperative Innovation Center for Sustainable Pig Production, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China; International Research Center for Animal Disease, Ministry of Science and Technology of China, Wuhan, 430070, China; Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota, 55108, USA
| | - Xiao Liu
- State Key Laboratory of Agricultural Microbiology, Cooperative Innovation Center for Sustainable Pig Production, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China; International Research Center for Animal Disease, Ministry of Science and Technology of China, Wuhan, 430070, China
| | - Yufan Sun
- State Key Laboratory of Agricultural Microbiology, Cooperative Innovation Center for Sustainable Pig Production, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China; International Research Center for Animal Disease, Ministry of Science and Technology of China, Wuhan, 430070, China
| | - Chao Huang
- State Key Laboratory of Agricultural Microbiology, Cooperative Innovation Center for Sustainable Pig Production, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China; International Research Center for Animal Disease, Ministry of Science and Technology of China, Wuhan, 430070, China
| | - Antian Wang
- State Key Laboratory of Agricultural Microbiology, Cooperative Innovation Center for Sustainable Pig Production, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China; International Research Center for Animal Disease, Ministry of Science and Technology of China, Wuhan, 430070, China
| | - Jiajia Xu
- State Key Laboratory of Agricultural Microbiology, Cooperative Innovation Center for Sustainable Pig Production, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China; International Research Center for Animal Disease, Ministry of Science and Technology of China, Wuhan, 430070, China
| | - Hongbo Zhou
- State Key Laboratory of Agricultural Microbiology, Cooperative Innovation Center for Sustainable Pig Production, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China; International Research Center for Animal Disease, Ministry of Science and Technology of China, Wuhan, 430070, China
| | - Lu Li
- State Key Laboratory of Agricultural Microbiology, Cooperative Innovation Center for Sustainable Pig Production, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China; International Research Center for Animal Disease, Ministry of Science and Technology of China, Wuhan, 430070, China.
| | - Rui Zhou
- State Key Laboratory of Agricultural Microbiology, Cooperative Innovation Center for Sustainable Pig Production, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China; International Research Center for Animal Disease, Ministry of Science and Technology of China, Wuhan, 430070, China.
| |
Collapse
|
5
|
Mendes RJ, Sario S, Luz JP, Tassi N, Teixeira C, Gomes P, Tavares F, Santos C. Evaluation of Three Antimicrobial Peptides Mixtures to Control the Phytopathogen Responsible for Fire Blight Disease. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10122637. [PMID: 34961108 PMCID: PMC8705937 DOI: 10.3390/plants10122637] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 05/09/2023]
Abstract
Fire blight is a severe bacterial plant disease that affects important chain-of-value fruit trees such as pear and apple trees. This disease is caused by Erwinia amylovora, a quarantine phytopathogenic bacterium, which, although highly distributed worldwide, still lacks efficient control measures. The green revolution paradigm demands sustainable agriculture practices, for which antimicrobial peptides (AMPs) have recently caught much attention. The goal of this work was to disclose the bioactivity of three peptides mixtures (BP100:RW-BP100, BP100:CA-M, and RW-BP100:CA-M), against three strains of E. amylovora representing distinct genotypes and virulence (LMG 2024, Ea 630 and Ea 680). The three AMPs' mixtures were assayed at eight different equimolar concentrations ranging from 0.25 to 6 μM (1:1). Results showed MIC and MBC values between 2.5 and 4 μM for every AMP mixture and strain. Regarding cell viability, flow cytometry and alamarBlue reduction, showed high reduction (>25%) of viable cells after 30 min of AMP exposure, depending on the peptide mixture and strain assayed. Hypersensitive response in tobacco plants showed that the most efficient AMPs mixtures and concentrations caused low to no reaction of the plant. Altogether, the AMPs mixtures studied are better treatment solutions to control fire blight disease than the same AMPs applied individually.
Collapse
Affiliation(s)
- Rafael J. Mendes
- Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (S.S.); (C.T.); (P.G.); (F.T.); (C.S.)
- LAQV-REQUIMTE, Biology Department, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
- CITAB—Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
- CIBIO—Research Centre in Biodiversity and Genetic Resources, InBIO, Associated Laboratory, Campus Agrário de Vairão, University of Porto, 4485-661 Vairão, Portugal
- Correspondence:
| | - Sara Sario
- Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (S.S.); (C.T.); (P.G.); (F.T.); (C.S.)
- LAQV-REQUIMTE, Biology Department, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
- CITAB—Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - João Pedro Luz
- QRural, Polytechnic Institute of Castelo Branco, School of Agriculture, 6000-909 Castelo Branco, Portugal;
| | - Natália Tassi
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal;
| | - Cátia Teixeira
- Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (S.S.); (C.T.); (P.G.); (F.T.); (C.S.)
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal;
| | - Paula Gomes
- Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (S.S.); (C.T.); (P.G.); (F.T.); (C.S.)
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal;
| | - Fernando Tavares
- Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (S.S.); (C.T.); (P.G.); (F.T.); (C.S.)
- CIBIO—Research Centre in Biodiversity and Genetic Resources, InBIO, Associated Laboratory, Campus Agrário de Vairão, University of Porto, 4485-661 Vairão, Portugal
| | - Conceição Santos
- Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (S.S.); (C.T.); (P.G.); (F.T.); (C.S.)
- LAQV-REQUIMTE, Biology Department, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| |
Collapse
|
6
|
Lin Q, Fu Q, Su G, Chen D, Yu B, Luo Y, Zheng P, Mao X, Huang Z, Yu J, Luo J, Yan H, He J. Protective effect of Bombyx mori gloverin on intestinal epithelial cells exposure to enterotoxigenic E. coli. Braz J Microbiol 2021; 52:1235-1245. [PMID: 34155582 PMCID: PMC8324673 DOI: 10.1007/s42770-021-00532-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 05/13/2021] [Indexed: 10/21/2022] Open
Abstract
Bombyx mori gloverin A2 (BMGlvA2) is an induced antimicrobial insect protein isolated from Bombyx mori. This study was conducted to explore the effect and potential mechanisms of BMGlvA2 on inflammatory responses and cellular functions in intestinal epithelial cells (IPEC-J2) exposure to enterotoxigenic E. coli (ETEC). IPEC-J2 cells pretreated with or without BMGlvA2 (12.5 μg/mL) were challenged by ETEC K88 (1×106 CFU/well) or culture medium. We show that BMGlvA2 pretreatment increased the cell viability and improved the distribution and abundance of tight junction protein ZO-1 in IPEC-J2 cells exposure to ETEC (P < 0.05). Interestingly, BMGlvA2 not only decreased the expression levels of inflammatory cytokines such as the tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β), but also decreased the expression level of Caspase3 and the apoptosis rate in the ETEC-challenged cells (P < 0.05). Importantly, BMGlvA2 decreased the protein abundances of two critical inflammation-associated signaling proteins, phosphorylated nuclear factor-kappa-B inhibitor alpha (p-IκBα) and phosphorylated nuclear factor-kappa B (p-NF-κB), in the ETEC-challenged cells. These results indicate that BMGlvA2 attenuates ETEC-induced inflammation in the IPEC-J2 cells by regulating the NF-κB signaling pathway, resulting in decreased secretion of inflammatory cytokine and reduced cell apoptosis.
Collapse
Affiliation(s)
- Qian Lin
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, People's Republic of China
- Key Laboratory of Animal Disease-Resistant Nutrition, Sichuan Province, Chengdu, 611130, People's Republic of China
| | - Qingqing Fu
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, People's Republic of China
- Key Laboratory of Animal Disease-Resistant Nutrition, Sichuan Province, Chengdu, 611130, People's Republic of China
| | - Guoqi Su
- Chongqing Academy of Animal Sciences, Chongqing, 402460, People's Republic of China
| | - Daiwen Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, People's Republic of China
- Key Laboratory of Animal Disease-Resistant Nutrition, Sichuan Province, Chengdu, 611130, People's Republic of China
| | - Bing Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, People's Republic of China
- Key Laboratory of Animal Disease-Resistant Nutrition, Sichuan Province, Chengdu, 611130, People's Republic of China
| | - Yuheng Luo
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, People's Republic of China
- Key Laboratory of Animal Disease-Resistant Nutrition, Sichuan Province, Chengdu, 611130, People's Republic of China
| | - Ping Zheng
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, People's Republic of China
- Key Laboratory of Animal Disease-Resistant Nutrition, Sichuan Province, Chengdu, 611130, People's Republic of China
| | - Xiangbing Mao
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, People's Republic of China
- Key Laboratory of Animal Disease-Resistant Nutrition, Sichuan Province, Chengdu, 611130, People's Republic of China
| | - Zhiqing Huang
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, People's Republic of China
- Key Laboratory of Animal Disease-Resistant Nutrition, Sichuan Province, Chengdu, 611130, People's Republic of China
| | - Jie Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, People's Republic of China
- Key Laboratory of Animal Disease-Resistant Nutrition, Sichuan Province, Chengdu, 611130, People's Republic of China
| | - Junqiu Luo
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, People's Republic of China
- Key Laboratory of Animal Disease-Resistant Nutrition, Sichuan Province, Chengdu, 611130, People's Republic of China
| | - Hui Yan
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, People's Republic of China
- Key Laboratory of Animal Disease-Resistant Nutrition, Sichuan Province, Chengdu, 611130, People's Republic of China
| | - Jun He
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, People's Republic of China.
- Key Laboratory of Animal Disease-Resistant Nutrition, Sichuan Province, Chengdu, 611130, People's Republic of China.
| |
Collapse
|
7
|
Jiao J, Peng C, Li C, Qi Z, Zhan J, Pan S. Dual bio-active factors with adhesion function modified electrospun fibrous scaffold for skin wound and infections therapeutics. Sci Rep 2021; 11:457. [PMID: 33432124 PMCID: PMC7801708 DOI: 10.1038/s41598-020-80269-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 12/18/2020] [Indexed: 11/09/2022] Open
Abstract
Electrospun fibrous scaffolds combined with bioactive factors can display impressive performance as an ideal wound dressing, since they can mimic the composition and physicochemical properties of the extracellular matrix (ECM). The aim of this study was to fabricate a new composite biomaterial (IGF1-DA and Os-DA-modified PLGA electrospun fibrous scaffold) for wound healing, using a rat model for experimental evaluation. A small pentapeptide tag composed of DA-Lys-DA-Lys-DA residues was introduced into insulin-like growth factor 1 (IGF1) and the antimicrobial peptide Os to prepare IGF1 and Os modified with 3,4-dihydroxyphenylalanine (DA) (IGF1-DA and Os-DA). The designed chimeric growth factor and antimicrobial peptide could successfully anchor to PLGA electrospun fibrous scaffolds, and the growth factor and antimicrobial peptide could be controllably released from the electrospun fibrous scaffolds. The results showed that the IGF1-DA and Os-DA-modified PLGA electrospun fibrous scaffolds (PLGA/Os-DA/IGF1-DA) exhibited high hydrophilicity and antimicrobial activity; moreover, the porous network of the scaffolds was similar to that of the natural ECM, which can provide a favourable environment for BALB/C 3T3 cells growth. The in vivo application of PLGA/Os-DA/IGF1-DA electrospun fibrous scaffolds in rat skin wounds resulted in improved wound recovery and tissue regeneration rate. The experimental results indicated that the IGF1-DA and Os-DA could effectively bind to PLGA electrospun fibrous scaffolds, promote wound healing and prevent infection in rats, thereby suggesting that PLGA/Os-DA/IGF1-DA electrospun fibrous scaffolds have a wide application value in the field of skin wound repair.
Collapse
Affiliation(s)
- Jianhang Jiao
- Department of Orthopedic Surgery, The Second Hospital of Jilin University, Ziqiang Street No. 218, Changchun, 130041, Jilin, People's Republic of China
| | - Chuangang Peng
- Department of Orthopedic Surgery, The Second Hospital of Jilin University, Ziqiang Street No. 218, Changchun, 130041, Jilin, People's Republic of China
| | - Chen Li
- Department of Orthopedic Surgery, The Second Hospital of Jilin University, Ziqiang Street No. 218, Changchun, 130041, Jilin, People's Republic of China
| | - Zhiping Qi
- Department of Orthopedic Surgery, The Second Hospital of Jilin University, Ziqiang Street No. 218, Changchun, 130041, Jilin, People's Republic of China
| | - Jing Zhan
- Department of Gastroenterology, First Hospital of Jilin University, Jilin University, 71 Xinmin Street, Changchun, 130021, Jilin, People's Republic of China
| | - Su Pan
- Department of Orthopedic Surgery, The Second Hospital of Jilin University, Ziqiang Street No. 218, Changchun, 130041, Jilin, People's Republic of China.
| |
Collapse
|