1
|
Wei P, Wu L, Xie H, Chen Z, Tan R, Xu Z. Application of a meshed artificial dermal scaffold and negative-pressure wound therapy in the treatment of full-thickness skin defects: a prospective in vivo study. Biomater Sci 2024; 12:1914-1923. [PMID: 38436071 DOI: 10.1039/d3bm01675g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
Artificial dermal scaffolds (ADSs) have great value in repairing deep skin defects. However, problems such as unsatisfactory angiogenesis and local dropsy or empyema often occur, resulting in delayed or even failed wound healing. Negative pressure wound therapy (NPWT) is an effective therapy to promote wound healing or shorten wound bed preparation time. Studies on whether it can improve the effects of ADSs have never been interrupted, and no consensus has been reached. In this study, an improved ADS was prepared by mesh technology, physicochemical experiments were conducted, cell adhesion and proliferation were assessed with the meshed ADS, and in vivo experiments were conducted to investigate the effects of meshed ADS or ADS combined with NPWT in repairing full-thickness skin defects. The results showed that the meshed ADS showed through-layer channels arranged in parallel longitudinal and transverse intersections. The cell experiments confirmed the good cytocompatibility. The in vivo experiments showed that there were no differences in the take rate or contraction of grafted skin among all experiment groups. The meshed ADS exhibited good histocompatibility, and there were no differences in tissue inflammation, dermal angiogenesis, or degradation among all groups. In addition, necrosis, dropsy, or empyema of the dermal scaffold were found in all experiment groups except for the meshed ADS + NPWT group, which showed better wound repair results, including fewer scaffold-related complications and satisfactory skin graft survival and wound contraction. In conclusion, this novel meshed ADS, which has a regular through-layer mesh structure and possesses stable physicochemical properties and good biocompatibility, combined with NPWT can ensure adequate subdermal drainage and reduce the risk of scaffold-related complications, thereby improving the quality and efficiency of wound repair, promoting a broader application of biomaterials, and helping physicians and readers implement more effective wound management.
Collapse
Affiliation(s)
- Pei Wei
- Burn and Wound Repair Department, Fujian Medical University Union Hospital, Fuzhou 350001, China.
- Fujian Burn Institute, Fujian Medical University Union Hospital, Fuzhou 350001, China
- Fujian Provincial Key Laboratory of Burn and Trauma, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Lijiao Wu
- Department of Orthopedic Surgery, Fujian Provincial Hospital South Branch, Fuzhou 350001, China
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou 350001, China
| | - Hongteng Xie
- Burn and Wound Repair Department, Fujian Medical University Union Hospital, Fuzhou 350001, China.
- Fujian Burn Institute, Fujian Medical University Union Hospital, Fuzhou 350001, China
- Fujian Provincial Key Laboratory of Burn and Trauma, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Zhaohong Chen
- Burn and Wound Repair Department, Fujian Medical University Union Hospital, Fuzhou 350001, China.
- Fujian Burn Institute, Fujian Medical University Union Hospital, Fuzhou 350001, China
- Fujian Provincial Key Laboratory of Burn and Trauma, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Rongwei Tan
- GuangDong Engineering Technology Research Center of Implantable Medical Polymer, Shenzhen Lando Biomaterials Co., Ltd., Shenzhen 518107, China
| | - Zhaorong Xu
- Burn and Wound Repair Department, Fujian Medical University Union Hospital, Fuzhou 350001, China.
- Fujian Burn Institute, Fujian Medical University Union Hospital, Fuzhou 350001, China
- Fujian Provincial Key Laboratory of Burn and Trauma, Fujian Medical University Union Hospital, Fuzhou 350001, China
| |
Collapse
|
2
|
Xia W, Lin C, Tu Z, Li Y, Shen G. Preparation of laser microporous porcine acellular dermal matrix and observation of wound transplantation. Cell Tissue Bank 2023; 24:191-202. [PMID: 35804250 PMCID: PMC10006019 DOI: 10.1007/s10561-022-10023-7] [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: 09/06/2021] [Accepted: 06/20/2022] [Indexed: 11/02/2022]
Abstract
To prepare a new type of porcine acellular dermis matrix (PADM) with the new laser microporous technique and verify its safety and feasibility. A novel porcine acellular dermis matrix (ADM) was prepared by using sequential combined decellularization of trypsin, neutral protease and SDS solution method and fully rinsed with ultrasonic wave. Specific laser microporous technology was used to prepare the laser micropore porcine acellular dermal matrix (LPADM). SD rats were chose as the animal models and autologous skin was transplanted by one-step method to observe and detect the graft activity, immunogenicity and vascularization degree of the novel PADM. A porcelain white, shiny, soft and elastic dermal matrix was prepared in this study, the results showed low DNA residue and low cytotoxicity. HE staining and SEM observation revealed that the PADM had neither residual cells nor cell fragments, while the collagen bundles were intact and orderly arranged. All the SD rats survived. No infection or skin allergy was found after surgery. None of the animals lost weight. Histological examination showed that the LPADM was fully vascularized with little tissue destruction in the experiment group. Immunohistochemical staining for CD31 showed ideal vascularization in the experiment group, and immunohistochemical staining for TNF-α showed there were no statistical significance of inflammatory reaction in both groups. This study demonstrated that the novel PADM prepared by sequential combined decellularization of trypsin, neutral protease and SDS solution method and new laser microporous technique was effective and safe in animal transplantation.
Collapse
Affiliation(s)
- Weidong Xia
- The Burn Plastic Surgery, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, China
| | - Cai Lin
- Department of Burn, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang, Wenzhou, 325000, Zhejiang, China
| | - Zhuolong Tu
- Department of Burn, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang, Wenzhou, 325000, Zhejiang, China
| | - Yuan Li
- Department of Burn, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang, Wenzhou, 325000, Zhejiang, China
| | - Guoliang Shen
- The Burn Plastic Surgery, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, China.
| |
Collapse
|
3
|
Chen Z, Cheng Q, Wang L, Mo Y, Li K, Mo J. Optical coherence tomography for in vivo longitudinal monitoring of artificial dermal scaffold. Lasers Surg Med 2023; 55:316-326. [PMID: 36806261 DOI: 10.1002/lsm.23645] [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: 08/08/2022] [Revised: 01/26/2023] [Accepted: 01/28/2023] [Indexed: 02/21/2023]
Abstract
OBJECTIVES Artificial dermal scaffold (ADS) has undergone rapid development and been increasingly used for treating skin wound in clinics due to its good biocompatibility, controllable degradation, and low risk of disease infection. To obtain good treatment efficacy, ADS needs to be monitored longitudinally during the treatment process. For example, scaffold-tissue fit, cell in-growth, vascular regeneration, and scaffold degradation are the key properties to be inspected. However, to date, there are no effective, real-time, and noninvasive techniques to meet the requirement of the scaffold monitoring above. MATERIALS AND METHODS In this study, we propose to use optical coherence tomography (OCT) to monitor ADS in vivo through three-dimensional imaging. A swept source OCT system with a handheld probe was developed for in vivo skin imaging. Moreover, a cell in-growth, vascular regeneration, and scaffold degradation rate (IRDR) was defined with the volume reduction rate of the scaffold's collagen sponge layer. To measure the IRDR, a semiautomatic image segmentation algorithm was designed based on U-Net to segment the collagen sponge layer of the scaffold from OCT images. RESULTS The results show that the scaffold-tissue fit can be clearly visualized under OCT imaging. The IRDR can be computed based on the volume of the segmented collagen sponge layer. It is observed that the IRDR appeared to a linear function of the time and in addition, the IRDR varied among different skin parts. CONCLUSION Overall, it can be concluded that OCT has a good potential to monitor ADS in vivo. This can help guide the clinicians to control the treatment with ADS to improve the therapy.
Collapse
Affiliation(s)
- Ziye Chen
- Department of Electronic Information, Engineering School of Electronics and Information Engineering, Soochow University, Suzhou, China
| | - Qiong Cheng
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Lingyun Wang
- Department of Electronic Information, Engineering School of Electronics and Information Engineering, Soochow University, Suzhou, China
| | - Yunfeng Mo
- Department of Electronic Information, Engineering School of Electronics and Information Engineering, Soochow University, Suzhou, China
| | - Ke Li
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jianhua Mo
- Department of Electronic Information, Engineering School of Electronics and Information Engineering, Soochow University, Suzhou, China
| |
Collapse
|
4
|
Li F, Liu F, Huang K, Yang S. Advancement of Gallium and Gallium-Based Compounds as Antimicrobial Agents. Front Bioeng Biotechnol 2022; 10:827960. [PMID: 35186906 PMCID: PMC8855063 DOI: 10.3389/fbioe.2022.827960] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 01/13/2022] [Indexed: 12/30/2022] Open
Abstract
With the abuse and misuse of antibiotics, antimicrobial resistance has become a challenging issue in the medical system. Iatrogenic and non-iatrogenic infections caused by multidrug-resistant (MDR) pathogens pose serious threats to global human life and health because the efficacy of traditional antibiotics has been greatly reduced and the resulting socio-economic burden has increased. It is important to find and develop non-antibiotic-dependent antibacterial strategies because the development of new antibiotics can hardly keep pace with the emergence of resistant bacteria. Gallium (III) is a multi-target antibacterial agent that has an excellent antibacterial activity, especially against MDR pathogens; thus, a gallium (III)-based treatment is expected to become a new antibacterial strategy. However, some limitations of gallium ions as antimicrobials still exist, including low bioavailability and explosive release. In recent years, with the development of nanomaterials and clathrates, the progress of manufacturing technology, and the emergence of synergistic antibacterial strategies, the antibacterial activities of gallium have greatly improved, and the scope of application in medical systems has expanded. This review summarizes the advancement of current optimization for these key factors. This review will enrich the knowledge about the efficiency and mechanism of various gallium-based antibacterial agents and provide strategies for the improvement of the antibacterial activity of gallium-based compounds.
Collapse
Affiliation(s)
| | - Fengxiang Liu
- *Correspondence: Fengxiang Liu, ; Kai Huang, ; Shengbing Yang,
| | - Kai Huang
- *Correspondence: Fengxiang Liu, ; Kai Huang, ; Shengbing Yang,
| | - Shengbing Yang
- *Correspondence: Fengxiang Liu, ; Kai Huang, ; Shengbing Yang,
| |
Collapse
|
5
|
Jafari P, Luscher A, Siriwardena T, Michetti M, Que YA, Rahme LG, Reymond JL, Raffoul W, Van Delden C, Applegate LA, Köhler T. Antimicrobial Peptide Dendrimers and Quorum-Sensing Inhibitors in Formulating Next-Generation Anti-Infection Cell Therapy Dressings for Burns. Molecules 2021; 26:molecules26133839. [PMID: 34202446 PMCID: PMC8270311 DOI: 10.3390/molecules26133839] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/02/2021] [Accepted: 06/12/2021] [Indexed: 12/21/2022] Open
Abstract
Multidrug resistance infections are the main cause of failure in the pro-regenerative cell-mediated therapy of burn wounds. The collagen-based matrices for delivery of cells could be potential substrates to support bacterial growth and subsequent lysis of the collagen leading to a cell therapy loss. In this article, we report the development of a new generation of cell therapy formulations with the capacity to resist infections through the bactericidal effect of antimicrobial peptide dendrimers and the anti-virulence effect of anti-quorum sensing MvfR (PqsR) system compounds, which are incorporated into their formulation. Anti-quorum sensing compounds limit the pathogenicity and antibiotic tolerance of pathogenic bacteria involved in the burn wound infections, by inhibiting their virulence pathways. For the first time, we report a biological cell therapy dressing incorporating live progenitor cells, antimicrobial peptide dendrimers, and anti-MvfR compounds, which exhibit bactericidal and anti-virulence properties without compromising the viability of the progenitor cells.
Collapse
Affiliation(s)
- Paris Jafari
- Regenerative Therapy Unit (UTR), Department of Musculoskeletal Medicine DAL, Lausanne University Hospital, 1011 Lausanne, Switzerland; (P.J.); (M.M.)
- Service of Plastic, Reconstructive & Hand Surgery, Lausanne University Hospital, 1011 Lausanne, Switzerland;
- Department of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, University of Utah, Salt Lake City, UT 84112, USA
| | - Alexandre Luscher
- Department of Microbiology and Molecular Medicine, University of Geneva, 1211 Geneva, Switzerland; (A.L.); (C.V.D.)
| | - Thissa Siriwardena
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland; (T.S.); (J.-L.R.)
| | - Murielle Michetti
- Regenerative Therapy Unit (UTR), Department of Musculoskeletal Medicine DAL, Lausanne University Hospital, 1011 Lausanne, Switzerland; (P.J.); (M.M.)
- Service of Plastic, Reconstructive & Hand Surgery, Lausanne University Hospital, 1011 Lausanne, Switzerland;
| | - Yok-Ai Que
- Department of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland;
| | - Laurence G. Rahme
- Department of Surgery, Harvard Medical School and Massachusetts General Hospital, Boston, MA 02114, USA;
- Shriners Hospitals for Children Boston, Boston, MA 02114, USA
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Jean-Louis Reymond
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland; (T.S.); (J.-L.R.)
| | - Wassim Raffoul
- Service of Plastic, Reconstructive & Hand Surgery, Lausanne University Hospital, 1011 Lausanne, Switzerland;
| | - Christian Van Delden
- Department of Microbiology and Molecular Medicine, University of Geneva, 1211 Geneva, Switzerland; (A.L.); (C.V.D.)
- Division on Infectious Disease and Transplantation, University Hospital of Geneva, 1205 Geneva, Switzerland
| | - Lee Ann Applegate
- Regenerative Therapy Unit (UTR), Department of Musculoskeletal Medicine DAL, Lausanne University Hospital, 1011 Lausanne, Switzerland; (P.J.); (M.M.)
- Service of Plastic, Reconstructive & Hand Surgery, Lausanne University Hospital, 1011 Lausanne, Switzerland;
- Center for Applied Biotechnology and Molecular Medicine, University of Zurich, Winterthurerstrasse 260, 8057 Zurich, Switzerland
- Oxford OSCAR Suzhou Center, Oxford University, Suzhou 215028, China
- Correspondence: (L.A.A.); (T.K.); Tel.: +41-21-314-3510 (L.A.A.); +41-22-379-5571 (T.K.)
| | - Thilo Köhler
- Department of Microbiology and Molecular Medicine, University of Geneva, 1211 Geneva, Switzerland; (A.L.); (C.V.D.)
- Division on Infectious Disease and Transplantation, University Hospital of Geneva, 1205 Geneva, Switzerland
- Correspondence: (L.A.A.); (T.K.); Tel.: +41-21-314-3510 (L.A.A.); +41-22-379-5571 (T.K.)
| |
Collapse
|
6
|
Ali AF, Ahmed MM, El-Kady AM, Abd El-Hady BM, Ibrahim AM. Synthesis of Gelatin-Agarose Scaffold for Controlled Antibiotic Delivery and its Modification by Glass Nanoparticles Addition as a Potential Osteomyelitis Treatment. SILICON 2021; 13:2011-2028. [DOI: 10.1007/s12633-020-00576-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 06/26/2020] [Indexed: 09/02/2023]
|
7
|
Uchôa Teixeira JV, Azevedo Maia FR, Carvalho M, Reis R, Oliveira JM, Lisboa-Filho PN, Rosifni Alves Claro AP. Synthesis of mussel-inspired polydopamine-gallium nanoparticles for biomedical applications. Nanomedicine (Lond) 2021; 16:5-17. [PMID: 33410334 DOI: 10.2217/nnm-2020-0312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To established a simple, controlled and reproducible method to synthesize gallium (Ga)-coated polydopamine (PDA) nanoparticles (NPs). Materials & methods: PDA NPs were synthesized in alkali medium with posterior Ga shell formation due to ion chelation on the NP surface. Results: The obtained results with energy-dispersive x-ray spectroscopy confirmed the incorporation of Ga on the PDA NP surface. The cytotoxicity of Ga-coated PDA NPs was evaluated in vitro at different concentrations in contact with human adipose-derived stem cells. Further cell analysis also demonstrated the benefit of Ga-coated PDA NPs, which increased the cell proliferation rate compared with noncoated PDA NPs. Conclusion: This study indicated that Ga could work as an appropriate shell for PDA NPs, inducing cell proliferation at the analyzed concentrations.
Collapse
Affiliation(s)
- Jean Valdir Uchôa Teixeira
- Department of Materials & Technology, School of Engineering, UNESP - São Paulo State University, Guaratinguetá Campus, SP 12516-410l, Brazil
| | - Fátima Raquel Azevedo Maia
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables & Biomimetics, University of Minho, Guimarães 4710-553, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4710-553, Portugal
| | - Mariana Carvalho
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables & Biomimetics, University of Minho, Guimarães 4710-553, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4710-553, Portugal
| | - Rui Reis
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables & Biomimetics, University of Minho, Guimarães 4710-553, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4710-553, Portugal
| | - Joaquim Miguel Oliveira
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables & Biomimetics, University of Minho, Guimarães 4710-553, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4710-553, Portugal
| | | | - Ana Paula Rosifni Alves Claro
- Department of Materials & Technology, School of Engineering, UNESP - São Paulo State University, Guaratinguetá Campus, SP 12516-410l, Brazil
| |
Collapse
|
8
|
Strontium-Modified Scaffolds Based on Mesoporous Bioactive Glasses/Polyvinyl Alcohol Composites for Bone Regeneration. MATERIALS 2020; 13:ma13235526. [PMID: 33287381 PMCID: PMC7731299 DOI: 10.3390/ma13235526] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/27/2020] [Accepted: 11/29/2020] [Indexed: 12/12/2022]
Abstract
In the search of a new biomaterial for the treatment of bone defects resulting from traumatic events, an osteoporosis scenario with bone fractures, tumor removal, congenital pathologies or implant revisions for infection, we developed 3D scaffolds based on mesoporous bioactive glasses (MBGs) (85 − x)SiO2–5P2O5–10CaO–xSrO (x = 0, 2.5 and 5 mol.%). The scaffolds with meso-macroporosity were fabricated by pouring a suspension of MBG powders in polyvinyl alcohol (PVA) into a negative template of polylactic acid (PLA), followed by removal of the template by extraction at low temperature. SrO-containing MBGs exhibited excellent properties for bone substitution including ordered mesoporous structure, high textural properties, quick in vitro bioactive response in simulated body fluid (SBF) and the ability of releasing concentrations of strontium ions able to stimulate expression of early markers of osteoblastic differentiation. Moreover, the direct contact of MC3T3-E1 pre-osteoblastic cells with the scaffolds confirmed the cytocompatibility of the three compositions investigated. Nevertheless, the scaffold containing 2.5% of SrO induced the best cellular proliferation showing the potential of this scaffold as a candidate to be further investigated in vitro and in vivo, aiming to be clinically used for bone regeneration applications in non-load bearing sites.
Collapse
|
9
|
Rajabi A, Esmaeili A. Preparation of three-phase nanocomposite antimicrobial scaffold BCP/Gelatin/45S5 glass with drug vancomycin and BMP-2 loading for bone regeneration. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125508] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
10
|
张 一, 张 宪, 胡 中, 任 兴, 王 茜, 王 志. [Research progress on antibacterial properties of porous medical implant materials]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2020; 34:1478-1485. [PMID: 33191710 PMCID: PMC8171714 DOI: 10.7507/1002-1892.202001030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 05/05/2020] [Indexed: 11/03/2022]
Abstract
OBJECTIVE The antibacterial properties of porous medical implant materials were reviewed to provide guidance for further improvement of new medical implant materials. METHODS The literature related to the antibacterial properties of porous medical implant materials in recent years was consulted, and the classification, characteristics and applications, and antibacterial methods of porous medical implant materials were reviewed. RESULTS Porous medical implant materials can be classified according to surface pore size, preparation process, degree of degradation in vivo, and material source. It is widely used in the medical field due to its good biocompatibility and biomechanical properties. Nevertheless, the antibacterial properties of porous medical implant materials themselves are not obvious, and their antibacterial properties need to be improved through structural modification, overall modification, and coating modification. CONCLUSION At present, coating modification as the mainstream modification method for improving the antibacterial properties of porous medical materials is still a research hotspot. The introduction of new antibacterial substances provides a new perspective for the development of new coated porous medical implant materials, so that the porous medical implant materials have a more reliable antibacterial effect while taking into account biocompatibility.
Collapse
Affiliation(s)
- 一 张
- 华北理工大学附属医院骨科(河北唐山 063000)Department of Orthopedics, North China University of Science and Technology Affiliated Hospital, Tangshan Hebei, 063000, P.R.China
| | - 宪高 张
- 华北理工大学附属医院骨科(河北唐山 063000)Department of Orthopedics, North China University of Science and Technology Affiliated Hospital, Tangshan Hebei, 063000, P.R.China
| | - 中岭 胡
- 华北理工大学附属医院骨科(河北唐山 063000)Department of Orthopedics, North China University of Science and Technology Affiliated Hospital, Tangshan Hebei, 063000, P.R.China
| | - 兴宇 任
- 华北理工大学附属医院骨科(河北唐山 063000)Department of Orthopedics, North China University of Science and Technology Affiliated Hospital, Tangshan Hebei, 063000, P.R.China
| | - 茜 王
- 华北理工大学附属医院骨科(河北唐山 063000)Department of Orthopedics, North China University of Science and Technology Affiliated Hospital, Tangshan Hebei, 063000, P.R.China
| | - 志强 王
- 华北理工大学附属医院骨科(河北唐山 063000)Department of Orthopedics, North China University of Science and Technology Affiliated Hospital, Tangshan Hebei, 063000, P.R.China
- 华北理工大学临床医学院(河北唐山 063000)School of Clinical Medicine, North China University of Science and Technology, Tangshan Hebei, 063000, P.R.China
| |
Collapse
|
11
|
García-Villén F, Sánchez-Espejo R, Borrego-Sánchez A, Cerezo P, Cucca L, Sandri G, Viseras C. Correlation between Elemental Composition/Mobility and Skin Cell Proliferation of Fibrous Nanoclay/Spring Water Hydrogels. Pharmaceutics 2020; 12:E891. [PMID: 32962099 PMCID: PMC7559572 DOI: 10.3390/pharmaceutics12090891] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/12/2020] [Accepted: 09/17/2020] [Indexed: 11/20/2022] Open
Abstract
Inorganic hydrogels formulated with spring waters and clay minerals are used to treat musculoskeletal disorders and skin affections. Their underlying mechanism of action for skin disorders is not clear, although it is usually ascribed to the chemical composition of the formulation. The aim of this study was to assess the composition and in vitro release of elements with potential wound healing effects from hydrogels prepared with two nanoclays and natural spring water. In vitro Franz cell studies were used and the element concentration was measured by inductively coupled plasma techniques. Biocompatibility studies were used to evaluate the potential toxicity of the formulation against fibroblasts. The studied hydrogels released elements with known therapeutic interest in wound healing. The released ratios of some elements, such as Mg:Ca or Zn:Ca, played a significant role in the final therapeutic activity of the formulation. In particular, the proliferative activity of fibroblasts was ascribed to the release of Mn and the Zn:Ca ratio. Moreover, the importance of formulative studies is highlighted, since it is the optimal combination of the correct ingredients that makes a formulation effective.
Collapse
Affiliation(s)
- Fátima García-Villén
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, 18071 Granada, Spain; (F.G.-V.); (P.C.)
| | - Rita Sánchez-Espejo
- Andalusian Institute of Earth Sciences, CSIC-UGR (Consejo Superior de Investigaciones Científicas-Universidad de Granada), Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain; (R.S.-E.); (A.B.-S.)
| | - Ana Borrego-Sánchez
- Andalusian Institute of Earth Sciences, CSIC-UGR (Consejo Superior de Investigaciones Científicas-Universidad de Granada), Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain; (R.S.-E.); (A.B.-S.)
| | - Pilar Cerezo
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, 18071 Granada, Spain; (F.G.-V.); (P.C.)
| | - Lucia Cucca
- Department of Chemistry, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy;
| | - Giuseppina Sandri
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy;
| | - César Viseras
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, 18071 Granada, Spain; (F.G.-V.); (P.C.)
- Andalusian Institute of Earth Sciences, CSIC-UGR (Consejo Superior de Investigaciones Científicas-Universidad de Granada), Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain; (R.S.-E.); (A.B.-S.)
| |
Collapse
|
12
|
Scull G, Brown AC. Development of novel microenvironments for promoting enhanced wound healing. CURRENT TISSUE MICROENVIRONMENT REPORTS 2020; 1:73-87. [PMID: 33748773 PMCID: PMC7968354 DOI: 10.1007/s43152-020-00009-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
PURPOSE OF REVIEW Nonhealing wounds are a significant issue facing the healthcare industry. Materials that modulate the wound microenvironment have the potential to improve healing outcomes. RECENT FINDINGS A variety of acellular and cellular scaffolds have been developed for regulating the wound microenvironment, including materials for controlled release of antimicrobials and growth factors, materials with inherent immunomodulative properties, and novel colloidal-based scaffolds. Scaffold construction methods include electrospinning, 3D printing, decellularization of extracellular matrix, or a combination of techniques. Material application methods include layering or injecting at the wound site. SUMMARY Though these techniques show promise for repairing wounds, all material strategies thus far struggle to induce regeneration of features such as sweat glands and hair follicles. Nonetheless, innovative technologies currently in the research phase may facilitate future attainment of these features. Novel methods and materials are constantly arising for the development of microenvironments for enhanced wound healing.
Collapse
Affiliation(s)
- Grant Scull
- Joint Department of Biomedical Engineering, North Carolina State University and The University of North Carolina at Chapel Hill, Raleigh, NC 27695
- Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27695
| | - Ashley C. Brown
- Joint Department of Biomedical Engineering, North Carolina State University and The University of North Carolina at Chapel Hill, Raleigh, NC 27695
- Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27695
| |
Collapse
|
13
|
Li M, Ma J, Gao Y, Dong M, Zheng Z, Li Y, Tan R, She Z, Yang L. Epithelial differentiation of human adipose-derived stem cells (hASCs) undergoing three-dimensional (3D) cultivation with collagen sponge scaffold (CSS) via an indirect co-culture strategy. Stem Cell Res Ther 2020; 11:141. [PMID: 32234069 PMCID: PMC7110797 DOI: 10.1186/s13287-020-01645-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 02/10/2020] [Accepted: 03/10/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Three-dimensional (3D) cultivation with biomaterials was proposed to facilitate stem cell epithelial differentiation for wound healing. However, whether human adipose-derived stem cells (hASCs) on collagen sponge scaffold (CSS) better differentiate to keratinocytes remains unclear. METHODS 3D cultivation with CSS on hASC epidermal differentiation co-cultured with HaCaT cells at air-liquid interface (ALI) was compared with two-dimensional (2D) form and cultivation without "co-culture" or "ALI." Cellular morphology, cell adhesion, and growth condition were evaluated, followed by the protein and gene expression of keratin 14 (K14, keratinocyte specific marker). RESULTS Typical cobblestone morphology of keratinocytes was remarkably observed in co-cultured hASCs at ALI, but those seeded on the CSS exhibited more keratinocyte-like cells under an invert microscope and scanning electron microscope. Desired cell adhesion and proliferation were confirmed in 3D differentiation groups by rhodamine-labeled phalloidin staining, consistent with H&E staining. Compared with those cultured in 2D culture system or without "ALI," immunofluorescence staining and gene expression analysis revealed hASCs co-cultured over CSS expressed K14 at higher levels at day 15. CONCLUSIONS CSS is positive to promote epithelial differentiation of hASCs, which will foster a deeper understanding of artificial dermis in skin wound healing and regeneration.
Collapse
Affiliation(s)
- Minxiong Li
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou, 510515, People's Republic of China
| | - Jun Ma
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou, 510515, People's Republic of China
| | - Yanbin Gao
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou, 510515, People's Republic of China
| | - Mengru Dong
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou, 510515, People's Republic of China
| | - Zijun Zheng
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou, 510515, People's Republic of China
| | - Yuchen Li
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou, 510515, People's Republic of China
| | - Rongwei Tan
- Guangdong Engineering Research Center of Implantable Medical Polymer, Shenzhen Lando Biomaterials Co., Ltd., Shenzhen, 518107, People's Republic of China
| | - Zhending She
- Guangdong Engineering Research Center of Implantable Medical Polymer, Shenzhen Lando Biomaterials Co., Ltd., Shenzhen, 518107, People's Republic of China
| | - Lei Yang
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou, 510515, People's Republic of China.
| |
Collapse
|