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Afshar M, Rezaei A, Eghbali S, Nasirizadeh S, Alemzadeh E, Alemzadeh E, Shadi M, Sedighi M. Nanomaterial strategies in wound healing: A comprehensive review of nanoparticles, nanofibres and nanosheets. Int Wound J 2024; 21:e14953. [PMID: 38949185 PMCID: PMC11215686 DOI: 10.1111/iwj.14953] [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: 12/12/2023] [Revised: 05/06/2024] [Accepted: 06/11/2024] [Indexed: 07/02/2024] Open
Abstract
Wound healing is a complex process that orchestrates the coordinated action of various cells, cytokines and growth factors. Nanotechnology offers exciting new possibilities for enhancing the healing process by providing novel materials and approaches to deliver bioactive molecules to the wound site. This article elucidates recent advancements in utilizing nanoparticles, nanofibres and nanosheets for wound healing. It comprehensively discusses the advantages and limitations of each of these materials, as well as their potential applications in various types of wounds. Each of these materials, despite sharing common properties, can exhibit distinct practical characteristics that render them particularly valuable for healing various types of wounds. In this review, our primary focus is to provide a comprehensive overview of the current state-of-the-art in applying nanoparticles, nanofibres, nanosheets and their combinations to wound healing, serving as a valuable resource to guide researchers in their appropriate utilization of these nanomaterials in wound-healing research. Further studies are necessary to gain insight into the application of this type of nanomaterials in clinical settings.
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Affiliation(s)
- Mohammad Afshar
- Department of Anatomy, Faculty of MedicineBirjand University of Medical SciencesBirjandIran
- Medical Toxicology Research CenterMashhad University of Medical SciencesMashhadIran
| | - Alireza Rezaei
- Anatomical Clinical PathologistIslamic Azad University of Medical SciencesMashhadIran
| | - Samira Eghbali
- Department of Pharmacognosy and Traditional PharmacySchool of Pharmacy, Birjand University of Medical SciencesBirjandIran
- Cellular and Molecular Research CenterBirjand University of Medical SciencesBirjandIran
| | - Samira Nasirizadeh
- Cellular and Molecular Research CenterBirjand University of Medical SciencesBirjandIran
- Department of Pharmaceutics and NanotechnologySchool of Pharmacy, Birjand university of Medical SciencesBirjandIran
| | - Effat Alemzadeh
- Infectious Diseases Research CenterBirjand University of Medical SciencesBirjandIran
| | - Esmat Alemzadeh
- Department of Medical BiotechnologyFaculty of Medicine, Birjand University of Medical SciencesBirjandIran
| | - Mehri Shadi
- Department of Anatomy, Faculty of MedicineBirjand University of Medical SciencesBirjandIran
| | - Mahsa Sedighi
- Cellular and Molecular Research CenterBirjand University of Medical SciencesBirjandIran
- Department of Pharmaceutics and NanotechnologySchool of Pharmacy, Birjand university of Medical SciencesBirjandIran
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2
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Chen S, Cheng D, Bao W, Ding R, Shen Z, Huang W, Lu Y, Zhang P, Sun Y, Chen H, Shen C, Wang Y. Polydopamine-Functionalized Strontium Alginate/Hydroxyapatite Composite Microhydrogel Loaded with Vascular Endothelial Growth Factor Promotes Bone Formation and Angiogenesis. ACS APPLIED MATERIALS & INTERFACES 2024; 16:4462-4477. [PMID: 38240605 DOI: 10.1021/acsami.3c16822] [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: 02/01/2024]
Abstract
Critical-size bone defects are a common and intractable clinical problem that typically requires filling in with surgical implants to facilitate bone regeneration. Considering the limitations of autologous bone and allogeneic bone in clinical applications, such as secondary damage or immunogenicity, injectable microhydrogels with osteogenic and angiogenic effects have received considerable attention. Herein, polydopamine (PDA)-functionalized strontium alginate/nanohydroxyapatite (Sr-Alg/nHA) composite microhydrogels loaded with vascular endothelial growth factor (VEGF) were prepared using microfluidic technology. This composite microhydrogel released strontium ions stably for at least 42 days to promote bone formation. The PDA coating can release VEGF in a controlled manner, effectively promote angiogenesis around bone defects, and provide nutritional support for new bone formation. In in vitro experiments, the composite microhydrogels had good biocompatibility. The PDA coating greatly improves cell adhesion on the composite microhydrogel and provides good controlled release of VEGF. Therefore, this composite microhydrogel effectively promotes osteogenic differentiation and vascularization. In in vivo experiments, composite microhydrogels were injected into critical-size bone defects in the skull of rats, and they were shown by microcomputed tomography and tissue sections to be effective in promoting bone regeneration. These findings demonstrated that this novel microhydrogel effectively promotes bone formation and angiogenesis at the site of bone defects.
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Affiliation(s)
- Shi Chen
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei 230032, P. R. China
| | - Dawei Cheng
- Department of Orthopedics, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, P. R. China
| | - Weimin Bao
- Key Laboratory of Oral Diseases Research of Anhui Province, College and Hospital of Stomatology, Anhui Medical University, Hefei 230032, P. R. China
| | - Ruyuan Ding
- Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, P. R. China
| | - Zhenguo Shen
- Key Laboratory of Oral Diseases Research of Anhui Province, College and Hospital of Stomatology, Anhui Medical University, Hefei 230032, P. R. China
| | - Wenkai Huang
- Key Laboratory of Oral Diseases Research of Anhui Province, College and Hospital of Stomatology, Anhui Medical University, Hefei 230032, P. R. China
| | - Yifan Lu
- Applied Oral Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong 999077, SAR, P. R. China
| | - Panpan Zhang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei 230032, P. R. China
| | - Yiwei Sun
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei 230032, P. R. China
| | - Hemu Chen
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei 230032, P. R. China
| | - Cailiang Shen
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei 230032, P. R. China
| | - Yuanyin Wang
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei 230032, P. R. China
- Key Laboratory of Oral Diseases Research of Anhui Province, College and Hospital of Stomatology, Anhui Medical University, Hefei 230032, P. R. China
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3
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Sun W, Ye B, Chen S, Zeng L, Lu H, Wan Y, Gao Q, Chen K, Qu Y, Wu B, Lv X, Guo X. Neuro-bone tissue engineering: emerging mechanisms, potential strategies, and current challenges. Bone Res 2023; 11:65. [PMID: 38123549 PMCID: PMC10733346 DOI: 10.1038/s41413-023-00302-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/08/2023] [Accepted: 10/31/2023] [Indexed: 12/23/2023] Open
Abstract
The skeleton is a highly innervated organ in which nerve fibers interact with various skeletal cells. Peripheral nerve endings release neurogenic factors and sense skeletal signals, which mediate bone metabolism and skeletal pain. In recent years, bone tissue engineering has increasingly focused on the effects of the nervous system on bone regeneration. Simultaneous regeneration of bone and nerves through the use of materials or by the enhancement of endogenous neurogenic repair signals has been proven to promote functional bone regeneration. Additionally, emerging information on the mechanisms of skeletal interoception and the central nervous system regulation of bone homeostasis provide an opportunity for advancing biomaterials. However, comprehensive reviews of this topic are lacking. Therefore, this review provides an overview of the relationship between nerves and bone regeneration, focusing on tissue engineering applications. We discuss novel regulatory mechanisms and explore innovative approaches based on nerve-bone interactions for bone regeneration. Finally, the challenges and future prospects of this field are briefly discussed.
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Affiliation(s)
- Wenzhe Sun
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Bing Ye
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Siyue Chen
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Lian Zeng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Hongwei Lu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Yizhou Wan
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Qing Gao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Kaifang Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Yanzhen Qu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Bin Wu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Xiao Lv
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China.
| | - Xiaodong Guo
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China.
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4
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Nun N, Joy A. Fabrication and Bioactivity of Peptide-Conjugated Biomaterial Tissue Engineering Constructs. Macromol Rapid Commun 2023; 44:e2200342. [PMID: 35822458 DOI: 10.1002/marc.202200342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 06/22/2022] [Indexed: 01/11/2023]
Abstract
Tissue engineering combines materials engineering, cells and biochemical factors to improve, restore or replace various types of biological tissues. A nearly limitless combination of these strategies can be combined, providing a means to augment the function of a number of biological tissues such as skin tissue, neural tissue, bones, and cartilage. Compounds such as small molecule therapeutics, proteins, and even living cells have been incorporated into tissue engineering constructs to influence biological processes at the site of implantation. Peptides have been conjugated to tissue engineering constructs to circumvent limitations associated with conjugation of proteins or incorporation of cells. This review highlights various contemporary examples in which peptide conjugation is used to overcome the disadvantages associated with the inclusion of other bioactive compounds. This review covers several peptides that are commonly used in the literature as well as those that do not appear as frequently to provide a broad scope of the utility of the peptide conjugation technique for designing constructs capable of influencing the repair and regeneration of various bodily tissues. Additionally, a brief description of the construct fabrication techniques encountered in the covered examples and their advantages in various tissue engineering applications is provided.
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Affiliation(s)
- Nicholas Nun
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44321, USA
| | - Abraham Joy
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44321, USA
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5
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Liu Y, Lan X, Zhang J, Wang Y, Tian F, Li Q, Wang H, Wang M, Wang W, Tang Y. Preparation and in vitro evaluation of ε-poly(L-lysine) immobilized poly(ε-caprolactone) nanofiber membrane by polydopamine-assisted decoration as a potential wound dressing material. Colloids Surf B Biointerfaces 2022. [DOI: 10.1016/j.colsurfb.2022.112945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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Moradi SZ, Jalili F, Hoseinkhani Z, Mansouri K. Regenerative Medicine and Angiogenesis; Focused on Cardiovascular Disease. Adv Pharm Bull 2022; 12:686-699. [PMID: 36415645 PMCID: PMC9675929 DOI: 10.34172/apb.2022.072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 03/26/2021] [Accepted: 09/27/2021] [Indexed: 10/11/2023] Open
Abstract
Cardiovascular disease (CVD) is a major concern for health with high mortality rates around the world. CVD is often associated with partial or full occlusion of the blood vessel network. Changes in lifestyle can be useful for management early-stage disease but in the advanced stage, surgical interventions or pharmacological are needed to increase the blood flow through the affected tissue or to reduce the energy requirements. Regeneration medicine is a new science that has provided many different options for treating various diseases, especially in CVD over the years. Stem cell therapy, gene therapy, and tissue engineering are some of the powerful branches of the field that have given patients great hope in improving their condition. In this review, we attempted to examine the beneficial effects, challenges, and contradictory effects of angiogenesis in vivo, and in vitro models' studies of CVD. We hope that this information will be able to help other researchers to design new effective structures and open new avenues for the treatment of CVD with the help of angiogenesis and regeneration medicine in the future.
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Affiliation(s)
- Seyed Zachariah Moradi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Faramarz Jalili
- Gradute Studies Student, Sobey School of Business, Saint Mary‚S University, Halifax, NS,Canada
| | - Zohreh Hoseinkhani
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Kamran Mansouri
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Molecular Medicine Department, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
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7
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Daood U, Ilyas MS, Ashraf M, Akbar M, Bapat RA, Khan AS, Pichika MR, Parolia A, Seow LL, Khoo SP, Yiu C. Biochemical changes and macrophage polarization of a silane-based endodontic irrigant in an animal model. Sci Rep 2022; 12:6354. [PMID: 35428859 PMCID: PMC9012771 DOI: 10.1038/s41598-022-10290-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 03/21/2022] [Indexed: 02/08/2023] Open
Abstract
Silane-based/fully hydrolyzed, endodontic irrigant exhibiting antimicrobial properties, is prepared, and is hypothesized to control macrophage polarization for tissue repair. Albino wistar rats were injected with 0.1 ml root canal irrigant, and bone marrow cells procured. Cellular mitochondria were stained with MitoTracker green along with Transmission Electron Microscopy (TEM) performed for macrophage extracellular vesicle. Bone marrow stromal cells (BMSCs) were induced for M1 and M2 polarization and Raman spectroscopy with scratch assay performed. Cell counting was used to measure cytotoxicity, and fluorescence microscopy performed for CD163. Scanning Electron Microscopy (SEM) was used to investigate interaction of irrigants with Enterococcus faecalis. K21 specimens exhibited reduction in epithelium thickness and more mitochondrial mass. EVs showed differences between all groups with decrease and increase in IL-6 and IL-10 respectively. 0.5%k21 enhanced wound healing with more fibroblastic growth inside scratch analysis along with increased inflammation-related genes (ICAM-1, CXCL10, CXCL11, VCAM-1, CCL2, and CXCL8; tissue remodelling-related genes, collagen 1, EGFR and TIMP-2 in q-PCR analysis. Sharp bands at 1643 cm-1 existed in all with variable intensities. 0.5%k21 had a survival rate of BMSCs comparable to control group. Bacteria treated with 0.5%k21/1%k21, displayed damage. Antimicrobial and reparative efficacy of k21 disinfectant is a proof of concept for enhanced killing of bacteria across root dentin acquiring functional type M2 polarization for ethnopharmacological effects.
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Affiliation(s)
- Umer Daood
- Restorative Dentistry, School of Dentistry, International Medical University Kuala Lumpur, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Bukit Jalil, Wilayah Persekutuan Kuala Lumpur, Malaysia.
| | - Muhammad Sharjeel Ilyas
- Department of Oral Biology, Post Graduate Medical Institute, 6 Birdwood Road, Lahore, Pakistan
| | - Mariam Ashraf
- Department of Oral Biology, Post Graduate Medical Institute, 6 Birdwood Road, Lahore, Pakistan
| | - Munazza Akbar
- Department of Oral Biology, Post Graduate Medical Institute, 6 Birdwood Road, Lahore, Pakistan
| | - Ranjeet Ajit Bapat
- Restorative Dentistry, School of Dentistry, International Medical University Kuala Lumpur, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Bukit Jalil, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Abdul Samad Khan
- Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia
| | - Mallikarjuna Rao Pichika
- Pharmaceutical Chemistry, School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia
| | - Abhishek Parolia
- Restorative Dentistry, School of Dentistry, International Medical University Kuala Lumpur, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Bukit Jalil, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Liang Lin Seow
- Restorative Dentistry, School of Dentistry, International Medical University Kuala Lumpur, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Bukit Jalil, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Suan Phaik Khoo
- Division of Oral Diagnostic and Surgical Sciences, School of Dentistry, International Medical University, Kuala Lumpur, Malaysia
| | - Cynthia Yiu
- Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, 34 Hospital Road, Pokfulam, Hong Kong SAR, China
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8
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Jin L, Dong H, Sun D, Wang L, Qu L, Lin S, Yang Q, Zhang X. Biological Functions and Applications of Antimicrobial Peptides. Curr Protein Pept Sci 2022; 23:226-247. [DOI: 10.2174/1389203723666220519155942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/15/2022] [Accepted: 04/01/2022] [Indexed: 11/22/2022]
Abstract
Abstract:
Despite antimicrobial resistance, which is attributed to the misuse of broad-spectrum antibiotics,
antibiotics can indiscriminately kill pathogenic and beneficial microorganisms. These events
disrupt the delicate microbial balance in both humans and animals, leading to secondary infections
and other negative effects. Antimicrobial peptides (AMPs) are functional natural biopolymers in
plants and animals. Due to their excellent antimicrobial activities and absence of microbial resistance,
AMPs have attracted enormous research attention. We reviewed the antibacterial, antifungal, antiviral,
antiparasitic, as well as antitumor properties of AMPs and research progress on AMPs. In addition,
we highlighted various recommendations and potential research areas for their progress and
challenges in practical applications.
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Affiliation(s)
- Libo Jin
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University,
Wenzhou 325035, China
| | - Hao Dong
- College of Life Science and Technology, Jilin Agricultural University, Changchun 130118,
China
| | - Da Sun
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University,
Wenzhou 325035, China
| | - Lei Wang
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University,
Wenzhou 325035, China
| | - Linkai Qu
- College of Life Science and Technology, Jilin Agricultural University, Changchun 130118,
China
| | - Sue Lin
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University,
Wenzhou 325035, China
| | - Qinsi Yang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
| | - Xingxing Zhang
- Department of Endocrinology
and Metabolism, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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9
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Sustained Release Systems for Delivery of Therapeutic Peptide/Protein. Biomacromolecules 2021; 22:2299-2324. [PMID: 33957752 DOI: 10.1021/acs.biomac.1c00160] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Peptide/protein therapeutics have been significantly applied in the clinical treatment of various diseases such as cancer, diabetes, etc. owing to their high biocompatibility, specificity, and therapeutic efficacy. However, due to their immunogenicity, instability stemming from its complex tertiary and quaternary structure, vulnerability to enzyme degradation, and rapid renal clearance, the clinical application of protein/peptide therapeutics is significantly confined. Though nanotechnology has been demonstrated to prevent enzyme degradation of the protein therapeutics and thus enhance the half-life, issues such as initial burst release and uncontrollable release kinetics are still unsolved. Moreover, the traditional administration method results in poor patient compliance, limiting the clinical application of protein/peptide therapeutics. Exploiting the sustained-release formulations for more controllable delivery of protein/peptide therapeutics to decrease the frequency of injection and enhance patient compliance is thus greatly meaningful. In this review, we comprehensively summarize the substantial advancements of protein/peptide sustained-release systems in the past decades. In addition, the advantages and disadvantages of all these sustained-release systems in clinical application together with their future challenges are also discussed in this review.
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10
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Eger M, Liron T, Hiram-Bab S, Awida Z, Giladi E, Dangoor D, Fridkin M, Kohavi D, Gozes I, Gabet Y. Therapeutic Potential of Vasoactive Intestinal Peptide and its Derivative Stearyl-Norleucine-VIP in Inflammation-Induced Osteolysis. Front Pharmacol 2021; 12:638128. [PMID: 34025407 PMCID: PMC8131842 DOI: 10.3389/fphar.2021.638128] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 04/08/2021] [Indexed: 11/16/2022] Open
Abstract
The common use of dental and orthopedic implants calls for special attention to the immune response leading to peri-prosthetic bone loss and implant failure. In addition to the well-established microbial etiology for oral implant failure, wear debris and in particular titanium (Ti) particles (TiP) in the implant vicinity are an important trigger of inflammation and activation of bone resorption around oral and orthopedic implants, presenting an unmet medical need. Here, we employed bacterial-derived lipopolysaccharides (LPS) to model infection and TiP to model aseptic inflammation and osteolysis. We assessed inflammation in vitro by measuring IL1β, IL6 and TNFα mRNA expression in primary macrophages, osteoclastogenesis in RANKL-induced bone marrow derived pre-osteoclasts and osteolysis in vivo in a mouse calvarial model. We also assessed the trans-epithelial penetrability and safety of the tested compound in rats. Our results show that a lipophilic super-active derivative of vasoactive intestinal peptide (VIP), namely stearyl-norleucine-VIP (SNV) presented superior anti-inflammatory and anti-osteoclastogenic effects compared to VIP in vitro. In the bacterial infection model (LPS), SNV significantly reduced IL1β expression, while VIP increased IL6 expression. In the aseptic models of osteolysis, SNV showed greater suppression of in vitro osteoclastogenesis than VIP, and significantly inhibited inflammation-induced osteolysis in vivo. We also observed that expression levels of the VIP receptor VPAC-2, but not that of VPAC-1, dramatically decreased during osteoclast differentiation. Importantly, SNV previously shown to have an increased stability compared to VIP, showed here significant trans-epithelial penetration and a clean toxicological profile, presenting a novel drug candidate that could be applied topically to counter both aseptic and infection-related bone destruction.
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Affiliation(s)
- Michal Eger
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Department of Prosthodontics, Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Tamar Liron
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Sahar Hiram-Bab
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Zamzam Awida
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eliezer Giladi
- Department of Human Molecular Genetics and Biochemistry, Elton Laboratory of Molecular Neuroendocrinology, Sackler Faculty of Medicine, Adams Super Center for Brain Studies, Tel Aviv University, Tel Aviv, Israel
| | - David Dangoor
- Department of Human Molecular Genetics and Biochemistry, Elton Laboratory of Molecular Neuroendocrinology, Sackler Faculty of Medicine, Adams Super Center for Brain Studies, Tel Aviv University, Tel Aviv, Israel
| | - Mati Fridkin
- Department of Organic Chemistry, The Weizmann Institute of Science, Rehovot, Israel
| | - David Kohavi
- Department of Prosthodontics, Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Illana Gozes
- Department of Human Molecular Genetics and Biochemistry, Elton Laboratory of Molecular Neuroendocrinology, Sackler Faculty of Medicine, Adams Super Center for Brain Studies, Tel Aviv University, Tel Aviv, Israel.,Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Yankel Gabet
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
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11
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Bucci R, Vaghi F, Erba E, Romanelli A, Gelmi ML, Clerici F. Peptide grafting strategies before and after electrospinning of nanofibers. Acta Biomater 2021; 122:82-100. [PMID: 33326882 DOI: 10.1016/j.actbio.2020.11.051] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/14/2020] [Accepted: 11/30/2020] [Indexed: 01/06/2023]
Abstract
Nanofiber films produced by electrospinning currently provide a promising platform for different applications. Although nonfunctionalized nanofiber films from natural or synthetic polymers are extensively used, electrospun materials combined with peptides are gaining more interest. In fact, the selection of specific peptides improves the performance of the material for biological applications and mainly for tissue engineering, mostly by maintaining similar mechanical properties with respect to the simple polymer. The main drawback in using peptides blended with a polymer is the quick release of the peptides. To avoid this problem, covalent linking of the peptide is more beneficial. Here, we reviewed synthetic protocols that enable covalent grafting of peptides to polymers before or after the electrospinning procedures to obtain more robust electrospun materials. Applications and the performance of the new material compared to that of the starting polymer are discussed.
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12
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Chu B, He JM, Liu LL, Wu CX, You LL, Li XL, Wang S, Chen CS, Tu M. Proangiogenic Peptide Nanofiber Hydrogels for Wound Healing. ACS Biomater Sci Eng 2021; 7:1100-1110. [PMID: 33512985 DOI: 10.1021/acsbiomaterials.0c01264] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Rapid vascularization is vital for dermal regeneration, nutrient and nutrition transfer, metabolic waste removal, and prevention of infection. This study reports on a series of proangiogenic peptides designed to undergo self-assembly and promote angiogenesis and hence skin regeneration. The proangiogenic peptides comprised an angiogenic peptide segment, GEETEVTVEGLEPG, and a β-sheet structural peptide sequence. These peptides dissolved easily in ultrapure water and rapidly self-assembled into hydrogels in a pH-dependent manner, creating three-dimensional fibril network structures and nanofibers as revealed by a scanning microscope and a transmission electron microscope. In vitro experiments showed that the peptide hydrogels favored adhesion and proliferation of mouse fibroblasts (L929) and human umbilical vein endothelial cells (HUVECs). In particular, many connected tubes were formed in the HUVECs after 8 h of culture on the peptide hydrogels. In vivo experiments demonstrated that new blood vessels grew into the proangiogenic peptide hydrogels within 2 weeks after subcutaneous implantation in mice. Moreover, the proangiogenic-combined hydrogels exhibited faster repair cycles and better healing of skin defects. Collectively, the results indicate that the proangiogenic peptide hydrogels are a promising therapeutic option for skin regeneration.
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Affiliation(s)
- Bin Chu
- Department of Biomedical Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China.,Key Laboratory of Biomedical Materials and Implant Devices, Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, P. R. China
| | - Jin-Mei He
- Key Laboratory of Biomedical Materials and Implant Devices, Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, P. R. China
| | - Lan-Lan Liu
- Key Laboratory of Biomedical Materials and Implant Devices, Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, P. R. China
| | - Chao-Xi Wu
- Department of Biomedical Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
| | - Ling-Ling You
- Department of Biomedical Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
| | - Xiao-Li Li
- Key Laboratory of Biomedical Materials and Implant Devices, Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, P. R. China
| | - Song Wang
- Key Laboratory of Biomedical Materials and Implant Devices, Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, P. R. China
| | - Chang-Sheng Chen
- Key Laboratory of Biomedical Materials and Implant Devices, Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, P. R. China
| | - Mei Tu
- Department of Biomedical Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
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13
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Nazarnezhad S, Baino F, Kim HW, Webster TJ, Kargozar S. Electrospun Nanofibers for Improved Angiogenesis: Promises for Tissue Engineering Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1609. [PMID: 32824491 PMCID: PMC7466668 DOI: 10.3390/nano10081609] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 08/13/2020] [Accepted: 08/14/2020] [Indexed: 12/27/2022]
Abstract
Angiogenesis (or the development of new blood vessels) is a key event in tissue engineering and regenerative medicine; thus, a number of biomaterials have been developed and combined with stem cells and/or bioactive molecules to produce three-dimensional (3D) pro-angiogenic constructs. Among the various biomaterials, electrospun nanofibrous scaffolds offer great opportunities for pro-angiogenic approaches in tissue repair and regeneration. Nanofibers made of natural and synthetic polymers are often used to incorporate bioactive components (e.g., bioactive glasses (BGs)) and load biomolecules (e.g., vascular endothelial growth factor (VEGF)) that exert pro-angiogenic activity. Furthermore, seeding of specific types of stem cells (e.g., endothelial progenitor cells) onto nanofibrous scaffolds is considered as a valuable alternative for inducing angiogenesis. The effectiveness of these strategies has been extensively examined both in vitro and in vivo and the outcomes have shown promise in the reconstruction of hard and soft tissues (mainly bone and skin, respectively). However, the translational of electrospun scaffolds with pro-angiogenic molecules or cells is only at its beginning, requiring more research to prove their usefulness in the repair and regeneration of other highly-vascularized vital tissues and organs. This review will cover the latest progress in designing and developing pro-angiogenic electrospun nanofibers and evaluate their usefulness in a tissue engineering and regenerative medicine setting.
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Affiliation(s)
- Simin Nazarnezhad
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran;
| | - Francesco Baino
- Institute of Materials Physics and Engineering, Applied Science and Technology Department, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Hae-Won Kim
- Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan 31116, Korea;
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine Research Center, Dankook University, Cheonan 31116, Korea
| | - Thomas J. Webster
- Department of Chemical Engineering, Northeastern University, 360 Huntington Avenue, Boston, MA 02115, USA;
| | - Saeid Kargozar
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran;
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14
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Overcoming the Inflammatory Stage of Non-Healing Wounds: In Vitro Mechanism of Action of Negatively Charged Microspheres (NCMs). NANOMATERIALS 2020; 10:nano10061108. [PMID: 32503283 PMCID: PMC7353184 DOI: 10.3390/nano10061108] [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: 05/09/2020] [Revised: 05/23/2020] [Accepted: 06/01/2020] [Indexed: 01/20/2023]
Abstract
Negatively charged microspheres (NCMs) represent a new therapeutic approach for wound healing since recent clinical trials have shown NCM efficacy in the recovery of hard-to-heal wounds that tend to stay in the inflammatory phase, unlocking the healing process. The aim of this study was to elucidate the NCM mechanism of action. NCMs were extracted from a commercial microsphere formulation (PolyHeal® Micro) and cytotoxicity, attachment, proliferation and viability assays were performed in keratinocytes and dermal fibroblasts, while macrophages were used for the phagocytosis and polarization assays. We demonstrated that cells tend to attach to the microsphere surface, and that NCMs are biocompatible and promote cell proliferation at specific concentrations (50 and 10 NCM/cell) by a minimum of 3 fold compared to the control group. Furthermore, NCM internalization by macrophages seemed to drive these cells to a noninflammatory condition, as demonstrated by the over-expression of CD206 and the under-expression of CD64, M2 and M1 markers, respectively. NCMs are an effective approach for reverting the chronic inflammatory state of stagnant wounds (such as diabetic wounds) and thus for improving wound healing.
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15
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Shi L, Feng L, Zhu ML, Yang ZM, Wu TY, Xu J, Liu Y, Lin WP, Lo JHT, Zhang JF, Li G. Vasoactive Intestinal Peptide Stimulates Bone Marrow-Mesenchymal Stem Cells Osteogenesis Differentiation by Activating Wnt/β-Catenin Signaling Pathway and Promotes Rat Skull Defect Repair. Stem Cells Dev 2020; 29:655-666. [PMID: 32070222 DOI: 10.1089/scd.2019.0148] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Bone defect regeneration is a complex process that involves the coordination of a variety of different type of cells. As bone tissues are innervated and rich in nerve fibers, the neuropeptides released from various never fibers could regulate bone development, metabolism, and remodeling. Among all the neuropeptides, vasoactive intestinal peptide (VIP) could modulate the functions of both osteoblasts and osteoclasts, and may play a vital role in bone marrow mesenchymal stem cell (BMSC) osteogenesis during bone repair. In this study, we investigated the role of VIP in bone formation and the mechanisms of VIP in mediating BMSC osteogenic differentiation, and its possibility in clinical application of bone defect reconstruction. Our in vitro study results indicated that VIP promoted BMSC osteogenic differentiation by activating Wnt/β-catenin signaling pathway in BMSCs. VIP could also stimulate tube formation of EA.hy926 endothelial cell and increase vascular endothelial growth factor (VEGF) expression in BMSCs. Furthermore, in the rat skull defect model, VIP-conjugated functionalized hydrogel significantly enhanced cranial bone defect repair compared with the control group, with increased bone formation and angiogenesis. Taken together, as a member of neuropeptides, VIP could promote the BMSCs osteogenesis and angiogenesis differentiation in vitro and stimulate bone repair in vivo by activating Wnt/β-catenin signaling pathway. The knowledge obtained from this study emphasized the close association between innervation and bone repair process, and VIP may be a potential therapeutic agent for augmenting bone repair.
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Affiliation(s)
- Liu Shi
- Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, P.R. China.,Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P.R. China.,School of Medicine, Southeast University, Nanjing, P.R. China
| | - Lu Feng
- Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, P.R. China
| | - Mei-Ling Zhu
- Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, P.R. China
| | - Zheng-Meng Yang
- Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, P.R. China
| | - Tian-Yi Wu
- Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, P.R. China.,Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, P.R. China
| | - Jia Xu
- Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, P.R. China
| | - Yang Liu
- Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, P.R. China
| | - Wei-Ping Lin
- Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, P.R. China
| | - Jessica Hiu Tung Lo
- Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, P.R. China
| | - Jin-Fang Zhang
- Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, P.R. China.,Lingnan Medical Research Center, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, P.R. China
| | - Gang Li
- Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, P.R. China.,The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong Shenzhen Research Institute, Shenzhen, P.R. China
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16
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Histatin1-modified thiolated chitosan hydrogels enhance wound healing by accelerating cell adhesion, migration and angiogenesis. Carbohydr Polym 2020; 230:115710. [DOI: 10.1016/j.carbpol.2019.115710] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 11/25/2019] [Accepted: 12/05/2019] [Indexed: 12/11/2022]
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17
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Co-immobilization of ACH 11 antithrombotic peptide and CAG cell-adhesive peptide onto vascular grafts for improved hemocompatibility and endothelialization. Acta Biomater 2019; 97:344-359. [PMID: 31377424 DOI: 10.1016/j.actbio.2019.07.057] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 07/28/2019] [Accepted: 07/30/2019] [Indexed: 11/20/2022]
Abstract
Surface modification by conjugating biomolecules has been widely proved to enhance biocompatibility of small-caliber artificial vascular grafts. In this study, we aimed at developing a multifunctional vascular graft that provides not only good hemocompatibility but also in situ rapid endothelialization. Herein, a vascular graft (inner diameter ∼2 mm) was fabricated by electrospinning with poly(lactic acid-co-caprolactone) and gelatin, and then biofunctionalized with antithrombotic peptide with sequence LTFPRIVFVLG (ACH11) and cell adhesion peptide with sequence CAG through adhesive poly(dopamine) coating. We developed this graft with the synergistic properties of low thrombogenicity and rapid endothelialization. The successful grafting of both CAG and ACH11 peptides was confirmed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The surface micromorphology of the modified surfaces was observed by field emission scanning electron microscopy. Our results demonstrated that the multifunctional surface suppressed the denaturation of absorbed fibrinogen, hindered coagulation factor Xa activation, and inhibited platelet adhesion and aggregation. Importantly, this modified surface could selectively enhance endothelial cells adhesion, proliferation and release of nitric oxide. Upon in vivo implantation of 6 weeks, the multifunctional vascular graft showed improved patency and superior vascular endothelialization. Overall, the results effectively demonstrated that the co-immobilization of ACH11 and CAG provided a promising method for the improvement of hemocompatibility and endothelialization of vascular grafts. STATEMENT OF SIGNIFICANCE: Electrospun small-caliber vascular grafts are increasingly used to treat cardiovascular diseases. Despite their success related to their good biodegradation and mechanical strength, they have some drawbacks, such as low hemocompatibility and endothelialization. The single-function ligands are insufficient to modify surface with both good hemocompatibility and rapid endothelialization simultaneously. Therefore, we functionalized electrospun vascular graft by novel antithrombotic peptide and cell-adhesive peptide to construct superior anticoagulation and ECs-selective adhesion surface in present study. The multifunctional vascular grafts benefit for high long-term patency and rapid endothelialization.
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18
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Short fluorocarbon chains containing hydrophobic nanofibrous membranes with improved hemocompatibility, anticoagulation and anti-fouling performance. Colloids Surf B Biointerfaces 2019; 180:49-57. [DOI: 10.1016/j.colsurfb.2019.01.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 01/08/2019] [Accepted: 01/11/2019] [Indexed: 12/25/2022]
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19
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Veith AP, Henderson K, Spencer A, Sligar AD, Baker AB. Therapeutic strategies for enhancing angiogenesis in wound healing. Adv Drug Deliv Rev 2019; 146:97-125. [PMID: 30267742 DOI: 10.1016/j.addr.2018.09.010] [Citation(s) in RCA: 433] [Impact Index Per Article: 86.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 09/15/2018] [Accepted: 09/24/2018] [Indexed: 12/19/2022]
Abstract
The enhancement of wound healing has been a goal of medical practitioners for thousands of years. The development of chronic, non-healing wounds is a persistent medical problem that drives patient morbidity and increases healthcare costs. A key aspect of many non-healing wounds is the reduced presence of vessel growth through the process of angiogenesis. This review surveys the creation of new treatments for healing cutaneous wounds through therapeutic angiogenesis. In particular, we discuss the challenges and advancement that have been made in delivering biologic, pharmaceutical and cell-based therapies as enhancers of wound vascularity and healing.
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20
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Li X, Yin HM, Su K, Zheng GS, Mao CY, Liu W, Wang P, Zhang Z, Xu JZ, Li ZM, Liao GQ. Polydopamine-Assisted Anchor of Chitosan onto Porous Composite Scaffolds for Accelerating Bone Regeneration. ACS Biomater Sci Eng 2019; 5:2998-3006. [PMID: 33405654 DOI: 10.1021/acsbiomaterials.9b00209] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Surface function has an importance for the bioactivity of porous polymeric scaffolds. The goal of the present study is to immobilize highly bioactive chitosan (CS) onto the surface of porous composite scaffolds to accelerate bone regeneration. Porous poly(ε-caprolactone) (PCL)/bioactive glass (BG) composite scaffolds with strong anchor of CS were fabricated via mussel-inspired polydopamine (PDA) coating as a bridging layer. In vitro cell culture showed that firm immobilization of CS onto the composite scaffolds significantly enhanced protein adsorption, cell adhesion, and osteogenic differentiation compared to CS-decorated scaffolds via physical adsorption. In vivo assessments demonstrated that covalent immobilization of CS onto the surface of scaffolds obviously promoted cranial bone regeneration in comparison with the counterparts with physical adsorption of CS. The proposed method offers a feasible and effective means to fabricate artificial bioactive scaffolds for bone tissue engineering application.
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Affiliation(s)
- Xiang Li
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Hua-Mo Yin
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Kai Su
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Guang-Sen Zheng
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Chao-Ying Mao
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Wei Liu
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Peng Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Zhen Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jia-Zhuang Xu
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Gui-Qing Liao
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
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21
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Electrospun polymer micro/nanofibers as pharmaceutical repositories for healthcare. J Control Release 2019; 302:19-41. [DOI: 10.1016/j.jconrel.2019.03.020] [Citation(s) in RCA: 180] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/22/2019] [Accepted: 03/23/2019] [Indexed: 12/19/2022]
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22
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Fernández Robledo JA, Yadavalli R, Allam B, Pales Espinosa E, Gerdol M, Greco S, Stevick RJ, Gómez-Chiarri M, Zhang Y, Heil CA, Tracy AN, Bishop-Bailey D, Metzger MJ. From the raw bar to the bench: Bivalves as models for human health. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2019; 92:260-282. [PMID: 30503358 PMCID: PMC6511260 DOI: 10.1016/j.dci.2018.11.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 11/09/2018] [Accepted: 11/24/2018] [Indexed: 05/05/2023]
Abstract
Bivalves, from raw oysters to steamed clams, are popular choices among seafood lovers and once limited to the coastal areas. The rapid growth of the aquaculture industry and improvement in the preservation and transport of seafood have enabled them to be readily available anywhere in the world. Over the years, oysters, mussels, scallops, and clams have been the focus of research for improving the production, managing resources, and investigating basic biological and ecological questions. During this decade, an impressive amount of information using high-throughput genomic, transcriptomic and proteomic technologies has been produced in various classes of the Mollusca group, and it is anticipated that basic and applied research will significantly benefit from this resource. One aspect that is also taking momentum is the use of bivalves as a model system for human health. In this review, we highlight some of the aspects of the biology of bivalves that have direct implications in human health including the shell formation, stem cells and cell differentiation, the ability to fight opportunistic and specific pathogens in the absence of adaptive immunity, as source of alternative drugs, mucosal immunity and, microbiome turnover, toxicology, and cancer research. There is still a long way to go; however, the next time you order a dozen oysters at your favorite raw bar, think about a tasty model organism that will not only please your palate but also help unlock multiple aspects of molluscan biology and improve human health.
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Affiliation(s)
| | | | - Bassem Allam
- Stony Brook University, School of Marine and Atmospheric Sciences, Stony Brook, NY, 11794, USA
| | | | - Marco Gerdol
- University of Trieste, Department of Life Sciences, 34127, Trieste, Italy
| | - Samuele Greco
- University of Trieste, Department of Life Sciences, 34127, Trieste, Italy
| | - Rebecca J Stevick
- University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, 02882, USA
| | - Marta Gómez-Chiarri
- University of Rhode Island, Department of Fisheries, Animal and Veterinary Science, Kingston, RI, 02881, USA
| | - Ying Zhang
- University of Rhode Island, Department of Cell and Molecular Biology, Kingston, RI, 02881, USA
| | - Cynthia A Heil
- Bigelow Laboratory for Ocean Sciences, East Boothbay, ME, 04544, USA
| | - Adrienne N Tracy
- Bigelow Laboratory for Ocean Sciences, East Boothbay, ME, 04544, USA; Colby College, Waterville, 4,000 Mayflower Hill Dr, ME, 04901, USA
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23
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Liu M, Wang Y, Hu X, He W, Gong Y, Hu X, Liu M, Luo G, Xing M, Wu J. Janus N, N-dimethylformamide as a solvent for a gradient porous wound dressing of poly(vinylidene fluoride) and as a reducer for in situ nano-silver production: anti-permeation, antibacterial and antifouling activities against multi-drug-resistant bacteria both in vitro and in vivo. RSC Adv 2018; 8:26626-26639. [PMID: 35541086 PMCID: PMC9083098 DOI: 10.1039/c8ra03234c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 07/06/2018] [Indexed: 11/29/2022] Open
Abstract
The requirements for anti-permeation, anti-infection and antifouling when treating a malicious wound bed raise new challenges for wound dressing. The present study used N,N-dimethylformamide to treat poly(vinylidene fluoride) (PVDF) in order to obtain a dressing impregnated with in situ generated nano-silver particles (NS) via an immersion phase inversion method. Scanning electron microscopy (SEM) images showed that the film was characterized by a two-layer asymmetric structure with different pore sizes (top layer: ∼0.4 μm; bottom layer: ∼1.8 μm). The moisture permeability test indicated that the film had an optimal water vapor transmission rate (WVTR: ∼2500 g m-2 per day). TEM images revealed the successful formation of spherical NS, and Fourier-transform infrared spectroscopy (FTIR) demonstrated the integration of PVDF and NS (i.e., PVDF/NS). Correspondingly, the water contact angle measurements confirmed increased membrane surface hydrophobicity after NS integration. The inductively coupled plasma (ICP) spectrometry showed that the PVDF/NS displayed a continuous and safe release of silver ions. Moreover, in vitro experiments indicated that PVDF/NS films possessed satisfactory anti-permeation, antibacterial and antifouling activities against A. baumannii and E. coli bacteria, while they exhibited no obvious cytotoxicity toward mammalian HaCaT cells. Finally, the in vivo results showed that the nanoporous top layer of film could serve as a physical barrier to prevent bacterial penetration, whereas the microporous bottom layer could efficiently prevent bacterial infection caused by biofouling, leading to fast re-epithelialization via the enhancement of keratinocyte proliferation. Collectively, the results show that the PVDF/NS25 film has a promising application in wound treatment, especially for wounds infected by multi-drug-resistant bacteria such as A. baumannii.
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Affiliation(s)
- Menglong Liu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University) Chongqing 400038 China +86-23-65461677 +86-23-68754173
| | - Ying Wang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University) Chongqing 400038 China +86-23-65461677 +86-23-68754173
| | - Xiaodong Hu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University Chengdu 610065 China
| | - Weifeng He
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University) Chongqing 400038 China +86-23-65461677 +86-23-68754173
| | - Yali Gong
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University) Chongqing 400038 China +86-23-65461677 +86-23-68754173
| | - Xiaohong Hu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University) Chongqing 400038 China +86-23-65461677 +86-23-68754173
| | - Meixi Liu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University) Chongqing 400038 China +86-23-65461677 +86-23-68754173
| | - Gaoxing Luo
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University) Chongqing 400038 China +86-23-65461677 +86-23-68754173
| | - Malcolm Xing
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University) Chongqing 400038 China +86-23-65461677 +86-23-68754173
- Department of Mechanical Engineering, University of Manitoba Winnipeg MB R3T 2N2 Canada
| | - Jun Wu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University) Chongqing 400038 China +86-23-65461677 +86-23-68754173
- Department of Burns, The First Affiliated Hospital, SunYat-Sen University Guangzhou 510080 China
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Lebonvallet N, Laverdet B, Misery L, Desmoulière A, Girard D. New insights into the roles of myofibroblasts and innervation during skin healing and innovative therapies to improve scar innervation. Exp Dermatol 2018; 27:950-958. [DOI: 10.1111/exd.13681] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Nicolas Lebonvallet
- Department of Dermatology and EA4685 “Laboratory Interactions Neurons-Keratinocytes”; Faculty of Medicine and Health Sciences; University of Western Brittany; Brest France
| | - Betty Laverdet
- Department of Physiology and EA6309 “Myelin Maintenance and Peripheral Neuropathies”; Faculty of Pharmacy; University of Limoges; Limoges France
| | - Laurent Misery
- Department of Dermatology and EA4685 “Laboratory Interactions Neurons-Keratinocytes”; Faculty of Medicine and Health Sciences; University of Western Brittany; Brest France
| | - Alexis Desmoulière
- Department of Physiology and EA6309 “Myelin Maintenance and Peripheral Neuropathies”; Faculty of Pharmacy; University of Limoges; Limoges France
| | - Dorothée Girard
- Department of Physiology and EA6309 “Myelin Maintenance and Peripheral Neuropathies”; Faculty of Pharmacy; University of Limoges; Limoges France
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25
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Liu T, Liu Y, Liu M, Wang Y, He W, Shi G, Hu X, Zhan R, Luo G, Xing M, Wu J. Synthesis of graphene oxide-quaternary ammonium nanocomposite with synergistic antibacterial activity to promote infected wound healing. BURNS & TRAUMA 2018; 6:16. [PMID: 29796394 PMCID: PMC5961493 DOI: 10.1186/s41038-018-0115-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 04/11/2018] [Indexed: 01/22/2023]
Abstract
BACKGROUND Bacterial infection is one of the most common complications in burn, trauma, and chronic refractory wounds and is an impediment to healing. The frequent occurrence of antimicrobial-resistant bacteria due to irrational application of antibiotics increases treatment cost and mortality. Graphene oxide (GO) has been generally reported to possess high antimicrobial activity against a wide range of bacteria in vitro. In this study, a graphene oxide-quaternary ammonium salt (GO-QAS) nanocomposite was synthesized and thoroughly investigated for synergistic antibacterial activity, underlying antibacterial mechanisms and biocompatibility in vitro and in vivo. METHODS The GO-QAS nanocomposite was synthesized through amidation reactions of carboxylic group end-capped QAS polymers with primary amine-decorated GO to achieve high QAS loading ratios on nanosheets. Next, we investigated the antibacterial activity and biocompatibility of GO-QAS in vitro and in vivo. RESULTS GO-QAS exhibited synergistic antibacterial activity against bacteria through not only mechanical membrane perturbation, including wrapping, bacterial membrane insertion, and bacterial membrane perforation, but also oxidative stress induction. In addition, it was found that GO-QAS could eradicate multidrug-resistant bacteria more effectively than conventional antibiotics. The in vitro and in vivo toxicity tests indicated that GO-QAS did not exhibit obvious toxicity towards mammalian cells or organs at low concentrations. Notably, GO-QAS topically applied on infected wounds maintained highly efficient antibacterial activity and promoted infected wound healing in vivo. CONCLUSIONS The GO-QAS nanocomposite exhibits excellent synergistic antibacterial activity and good biocompatibility both in vitro and in vivo. The antibacterial mechanisms involve both mechanical membrane perturbation and oxidative stress induction. In addition, GO-QAS accelerated the healing process of infected wounds by promoting re-epithelialization and granulation tissue formation. Overall, the results indicated that the GO-QAS nanocomposite could be applied as a promising antimicrobial agent for infected wound management and antibacterial wound dressing synthesis.
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Affiliation(s)
- Tengfei Liu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University, Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Yuqing Liu
- Department of Mechanical Engineering, University of Manitoba, Winnipeg, MB Canada
| | - Menglong Liu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University, Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Ying Wang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University, Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Weifeng He
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University, Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Gaoqiang Shi
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University, Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Xiaohong Hu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University, Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Rixing Zhan
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University, Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Gaoxing Luo
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University, Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Malcolm Xing
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University, Chongqing, China
- Department of Mechanical Engineering, University of Manitoba, Winnipeg, MB Canada
| | - Jun Wu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University, Chongqing, China
- Department of Burns, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, People’s Republic of China
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26
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Qian W, Hu X, He W, Zhan R, Liu M, Zhou D, Huang Y, Hu X, Wang Z, Fei G, Wu J, Xing M, Xia H, Luo G. Polydimethylsiloxane incorporated with reduced graphene oxide (rGO) sheets for wound dressing application: Preparation and characterization. Colloids Surf B Biointerfaces 2018; 166:61-71. [PMID: 29544129 DOI: 10.1016/j.colsurfb.2018.03.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 02/27/2018] [Accepted: 03/06/2018] [Indexed: 11/18/2022]
Abstract
Toward fabricating a novel multifunctional wound dressing material, we incorporated a series of contents of reduced graphene oxide (rGO) sheets into polydimethylsiloxane (PDMS) matrix to prepare the rGO-PDMS composite membrane and be used for wound dressing. The pore structure, dispersion of rGO, physical properties, water vapor transmission rate (WVTR), cytotoxicity and antibacterial activity were studied. Finally, the effect of the rGO-PDMS composite membrane on wound healing was investigated on a murine full-thickness skin wound model. The rGO-PDMS composite membrane exhibited bionic performance (ordered pore structure and suitable WVTR), improved mechanical properties, good compatibility and effective antibacterial activity. In vivo experiment indicated that the rGO-PDMS composite membrane could accelerate wound healing via enhancement of the re-epithelialization and granulation tissue formation. These findings suggest that rGO doping PDMS uniquely resulted in a multifunctional material for potential use in wound dressing.
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Affiliation(s)
- Wei Qian
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Key Laboratory of Disease Proteomics of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xiaodong Hu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China
| | - Weifeng He
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Key Laboratory of Disease Proteomics of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Rixing Zhan
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Key Laboratory of Disease Proteomics of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Menglong Liu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Key Laboratory of Disease Proteomics of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Daijun Zhou
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Key Laboratory of Disease Proteomics of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yong Huang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Key Laboratory of Disease Proteomics of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xiaohong Hu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Key Laboratory of Disease Proteomics of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Zhanhua Wang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China
| | - Guoxia Fei
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China
| | - Jun Wu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Key Laboratory of Disease Proteomics of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Department of Burns, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Malcolm Xing
- Departments of Mechanical Engineering, Biochemistry and Medical Genetics, University of Manitoba, and Manitoba Institute of Child Health, Winnipeg, MB R3T 2N2, Canada
| | - Hesheng Xia
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China.
| | - Gaoxing Luo
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Key Laboratory of Disease Proteomics of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
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Do Neuroendocrine Peptides and Their Receptors Qualify as Novel Therapeutic Targets in Osteoarthritis? Int J Mol Sci 2018; 19:ijms19020367. [PMID: 29373492 PMCID: PMC5855589 DOI: 10.3390/ijms19020367] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 01/22/2018] [Accepted: 01/23/2018] [Indexed: 01/15/2023] Open
Abstract
Joint tissues like synovium, articular cartilage, meniscus and subchondral bone, are targets for neuropeptides. Resident cells of these tissues express receptors for various neuroendocrine-derived peptides including proopiomelanocortin (POMC)-derived peptides, i.e., α-melanocyte-stimulating hormone (α-MSH), adrenocorticotropin (ACTH) and β-endorphin (β-ED), and sympathetic neuropeptides like vasoactive intestinal peptide (VIP) and neuropeptide y (NPY). Melanocortins attained particular attention due to their immunomodulatory and anti-inflammatory effects in several tissues and organs. In particular, α-MSH, ACTH and specific melanocortin-receptor (MCR) agonists appear to have promising anti-inflammatory actions demonstrated in animal models of experimentally induced arthritis and osteoarthritis (OA). Sympathetic neuropeptides have obtained increasing attention as they have crucial trophic effects that are critical for joint tissue and bone homeostasis. VIP and NPY are implicated in direct and indirect activation of several anabolic signaling pathways in bone and synovial cells. Additionally, pituitary adenylate cyclase-activating polypeptide (PACAP) proved to be chondroprotective and, thus, might be a novel target in OA. Taken together, it appears more and more likely that the anabolic effects of these neuroendocrine peptides or their respective receptor agonists/antagonists may be exploited for the treatment of patients with inflammatory and degenerative joint diseases in the future.
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Abstract
Angiogenesis plays an important role not only in the growth and regeneration of tissues in humans but also in pathological conditions such as inflammation, degenerative disease and the formation of tumors. Angiogenesis is also vital in thick engineered tissues and constructs, such as those for the heart and bone, as these can face difficulties in successful implantation if they are insufficiently vascularized or unable to connect to the host vasculature. Considerable research has been carried out on angiogenic processes using a variety of approaches. Pathological angiogenesis has been analyzed at the cellular level through investigation of cell migration and interactions, modeling tissue level interactions between engineered blood vessels and whole organs, and elucidating signaling pathways involved in different angiogenic stimuli. Approaches to regenerative angiogenesis in ischemic tissues or wound repair focus on the vascularization of tissues, which can be broadly classified into two categories: scaffolds to direct and facilitate tissue growth and targeted delivery of genes, cells, growth factors or drugs that promote the regeneration. With technological advancement, models have been designed and fabricated to recapitulate the innate microenvironment. Moreover, engineered constructs provide not only a scaffold for tissue ingrowth but a reservoir of agents that can be controllably released for therapeutic purposes. This review summarizes the current approaches for modeling pathological and regenerative angiogenesis in the context of micro-/nanotechnology and seeks to bridge these two seemingly distant aspects of angiogenesis. The ultimate aim is to provide insights and advances from various models in the realm of angiogenesis studies that can be applied to clinical situations.
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Affiliation(s)
- Li-Jiun Chen
- Department of Finemechanics, Graduate School of Engineering, Tohoku University, 6-6-01 Aramaki, Aoba-ku, Sendai 980-8579, Japan.
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29
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Nanotechnology-based delivery systems to release growth factors and other endogenous molecules for chronic wound healing. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.03.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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30
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Liu M, Luo G, Wang Y, He W, Liu T, Zhou D, Hu X, Xing M, Wu J. Optimization and integration of nanosilver on polycaprolactone nanofibrous mesh for bacterial inhibition and wound healing in vitro and in vivo. Int J Nanomedicine 2017; 12:6827-6840. [PMID: 28979121 PMCID: PMC5602461 DOI: 10.2147/ijn.s140648] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Bacterial infection is a major hurdle to wound healing, and the overuse of antibiotics have led to global issue, such as emergence of multidrug-resistant bacteria, even "super bacteria". On the contrary, nanosilver (NS) can kill bacteria without causing resistant bacterial strains. In this study, NS was simply generated in situ on the polycaprolactone (PCL) nanofibrous mesh using an environmentally benign and mussel-inspired dopamine (DA). Scanning electron microscopy showed that NS uniformly formed on the nanofibers of PCL mesh. Fourier transform infrared spectroscopy revealed the step-by-step preparation of pristine PCL mesh, including DA coating and NS formation, which were further verified by water contact angle changing from hydrophobic to hydrophilic. To optimize the NS dose, the antibacterial activity of PCL/NS against Staphylococcus aureus, Escherichia coli and Acinetobacter baumannii was detected by bacterial suspension assay, and the cytotoxicity of NS was evaluated using cellular morphology observation and Cell Counting Kit-8 (CCK8) assay. Then, inductively coupled plasma atomic emission spectrometry exhibited that the optimized PCL/NS had a safe and sustained silver release. Moreover, PCL/NS could effectively inhibit bacterial infection in an infectious murine full-thickness skin wound model. As demonstrated by the enhanced level of proliferating cell nuclear antigen (PCNA) in keratinocytes and longer length of neo-formed epidermis, PCL/NS accelerated wound healing by promoting re-epithelialization via enhancing keratinocyte proliferation in infectious wounds.
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Affiliation(s)
- Menglong Liu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, the Third Military Medical University
- Department of Burns, Chongqing Key Laboratory for Disease Proteomics, Chongqing, People’s Republic of China
| | - Gaoxing Luo
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, the Third Military Medical University
- Department of Burns, Chongqing Key Laboratory for Disease Proteomics, Chongqing, People’s Republic of China
| | - Ying Wang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, the Third Military Medical University
- Department of Burns, Chongqing Key Laboratory for Disease Proteomics, Chongqing, People’s Republic of China
| | - Weifeng He
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, the Third Military Medical University
- Department of Burns, Chongqing Key Laboratory for Disease Proteomics, Chongqing, People’s Republic of China
| | - Tengfei Liu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, the Third Military Medical University
- Department of Burns, Chongqing Key Laboratory for Disease Proteomics, Chongqing, People’s Republic of China
| | - Daijun Zhou
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, the Third Military Medical University
- Department of Burns, Chongqing Key Laboratory for Disease Proteomics, Chongqing, People’s Republic of China
| | - Xiaohong Hu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, the Third Military Medical University
- Department of Burns, Chongqing Key Laboratory for Disease Proteomics, Chongqing, People’s Republic of China
| | - Malcolm Xing
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, the Third Military Medical University
- Department of Mechanical Engineering, University of Manitoba, Winnipeg, MB, Canada
| | - Jun Wu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, the Third Military Medical University
- Department of Burns, Chongqing Key Laboratory for Disease Proteomics, Chongqing, People’s Republic of China
- Department of Burns, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, People’s Republic of China
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31
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Li H, Wang S, Tan J, Zhou J, Wu J, Luo G. Epidemiology of pediatric burns in southwest China from 2011 to 2015. Burns 2017; 43:1306-1317. [PMID: 28372828 DOI: 10.1016/j.burns.2017.03.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 03/06/2017] [Accepted: 03/08/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND Burns are a major form of injury in children worldwide. This study aimed to investigate the epidemiology, outcome, cost and risk factors of pediatric burns in southwest China. METHODS This retrospective study was performed at the Institute of Burn Research of the Third Military Medical University from 2011 to 2015. Data, including demographic, injury-related, and clinical data and patient outcome, were collected from medical records. RESULTS A total of 2478 children with burns (58.03% boys), accounting for 39.2% of total burn patients, were included. The average age of the burn patients was 2.86±2.86years, and most patients (85.55%) were under five years old. The incidence of burns peaked in January, February and May. Scald burns were the most frequent (79.06%), followed by flame burns (14.0%) and electrical burns (3.35%). Limbs were the most common burn sites (69.73%), and the average total body surface area (TBSA) was 11.57±11.61%. The percentage of children who underwent operations and the number of operations were significantly increased in cases of electrical burns, the older-age group, a larger TBSA and full-thickness burns. Six deaths were recorded, yielding a mortality of 0.24%. The median length of stay and cost were 14days and 9541 CNY, respectively, and the major risk factors for length of stay and cost were the TBSA, number of operations, full-thickness burns and outcome. CONCLUSIONS In southwest China, among children under five years old, scald and flame burns should become the key prevention target, and future prevention strategies should be based on related risk factors.
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Affiliation(s)
- Haisheng Li
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Song Wang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Jianglin Tan
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Junyi Zhou
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Jun Wu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Gaoxing Luo
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China.
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32
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Nano-silver-decorated microfibrous eggshell membrane: processing, cytotoxicity assessment and optimization, antibacterial activity and wound healing. Sci Rep 2017; 7:436. [PMID: 28348388 PMCID: PMC5428678 DOI: 10.1038/s41598-017-00594-x] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 03/07/2017] [Indexed: 02/07/2023] Open
Abstract
An ideal wound dressing can both promote wound healing and prevent bacterial infection. Here, we report a potential dressing prepared by incorporating an optimized concentration of silver nanoparticles (AgNPs) into the microfibers of a natural eggshell membrane (EM) using environmentally friendly and mussel-inspired dopamine. Briefly, acid-treated EM was used as a porous membrane for polydopamine-reduced AgNPs synthesis. To obtain the optimal cytocompatible silver concentration, cellular attachment and MTT assay were performed with different concentrations of AgNPs. The morphology of the EM and AgNPs was confirmed by scanning electronic microscopy, scanning transmission electronic microscopy and Fourier transform infrared spectroscopy. The synthesized EM/AgNPs exhibited steady and safe AgNPs release, which was further tested for antibacterial activity against Escherichia coli and Staphylococcus aureus by disc diffusion method and bacterial suspension assay. Finally, in a murine full-thickness skin wound model, we found that EM/AgNPs could promote re-epithelialization, granulation tissue formation and wound healing via enhancing cell proliferation, as demonstrated by the expression of proliferating cell nuclear antigen (PCNA), and controlling inflammation response, as demonstrated by the expression of interleukin-1β (IL-1β). These findings suggest that EM/AgNPs may have a promising application in wound management.
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33
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Song X, Mei J, Zhang X, Wang L, Singh G, Xing MMQ, Qiu X. Flexible and highly interconnected, multi-scale patterned chitosan porous membrane produced in situ from mussel shell to accelerate wound healing. Biomater Sci 2017; 5:1101-1111. [DOI: 10.1039/c7bm00095b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mussel shell-derived dressing for full-thickness wound healing. The mussel shell-derived, in situ formed flexible membrane dressing promotes wound healing processes.
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Affiliation(s)
- Xiaoping Song
- Department of Anatomy
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering
- Southern Medical University
- Guangdong
- China
| | - Jie Mei
- Department of Anatomy
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering
- Southern Medical University
- Guangdong
- China
| | - Xingying Zhang
- Department of Mechanical and Manitoba Institute of Child Health
- University of Manitoba
- Winnipeg
- Canada
| | - Leyu Wang
- Department of Anatomy
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering
- Southern Medical University
- Guangdong
- China
| | - Gurankit Singh
- Department of Mechanical and Manitoba Institute of Child Health
- University of Manitoba
- Winnipeg
- Canada
| | - Malcolm M. Q. Xing
- Department of Mechanical and Manitoba Institute of Child Health
- University of Manitoba
- Winnipeg
- Canada
| | - Xiaozhong Qiu
- Department of Anatomy
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering
- Southern Medical University
- Guangdong
- China
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34
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Lei Q, Li Z, Xu R, Wang Y, Li H, Wang Y, Liu M, Yang S, Zhan R, Zhao J, Liu B, Hu X, Zhang X, He W, Wu J, Xia H, Luo G. Biomimetic thermoplastic polyurethane porous membrane with hierarchical structure accelerates wound healing by enhancing granulation tissue formation and angiogenesis. RSC Adv 2016. [DOI: 10.1039/c6ra20567d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Wound dressing with hierarchical structure enhances wound healing.
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Affiliation(s)
- Qiang Lei
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Zhichao Li
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu
- China
| | - Rui Xu
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Yuzhen Wang
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Haisheng Li
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Ying Wang
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Menglong Liu
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Sisi Yang
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Rixing Zhan
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Jian Zhao
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu
- China
| | - Bo Liu
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu
- China
| | - Xiaohong Hu
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Xiaorong Zhang
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Weifeng He
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Jun Wu
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Hesheng Xia
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu
- China
| | - Gaoxing Luo
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
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