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Song C, Liu Y, Tao X, Cheng K, Cai W, Zhou D, Zhou Y, Wang L, Shi H, Hao Q, Liu Z. Immunomodulation Pathogenesis and Treatment of Bone Nonunion. Orthop Surg 2024; 16:1770-1782. [PMID: 38946017 PMCID: PMC11293939 DOI: 10.1111/os.14131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 05/23/2024] [Accepted: 05/23/2024] [Indexed: 07/02/2024] Open
Abstract
Fractures and bone nonunion commonly require surgical intervention. Serious outcomes of non-healing in the late stages of fracture place a significant financial burden on society and families. Bone nonunion occurs when a fracture stops healing, for many reasons, and leads to a variety of bad outcomes. Numerous factors, including biomechanics and immunology, are involved in the complicated mechanisms of bone nonunion. The immune-inflammatory response plays a significant part in the emergence of bone nonunion, and the occurrence, control, and remission of inflammation in the bone healing process have a significant influence on the ultimate success of bone tissue repair. In the bone microenvironment, immune cells and associated cytokines control bone repair, which is significantly influenced by macrophages, T cells, and fibroblast growth factor. To limit acute inflammation and balance osteogenesis and osteoblastogenesis for tissue repair and regeneration, immune cells and various cytokines in the local microenvironment must be precisely regulated. As a bad complication of late-stage fractures, bone nonunion has a significant effect on patients' quality of life and socioeconomic development. Therefore, in-depth research on its pathogenesis and treatment methods has important clinical value. To provide more precise, focused therapeutic options for the treatment of bone nonunion, we discuss the regulatory roles of the key immune cells engaged in bone healing within the microenvironment during bone healing and their effect on osteogenesis.
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Affiliation(s)
- Chao Song
- Department of Orthopedics and Traumatology (Trauma and Bone‐Setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine HospitalSouthwest Medical UniversityLuzhouChina
| | - Yong Liu
- Department of Bone and Joint Sports MedicineXingguo People's Hospital, Gannan Medical CollegeXingguoChina
| | - Xingxing Tao
- College of Integrative Chinese and Western Medicine, The Affiliated Traditional Chinese Medicine HospitalSouthwest Medical UniversityLuzhouChina
| | - Kang Cheng
- Department of Orthopedics and Traumatology (Trauma and Bone‐Setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine HospitalSouthwest Medical UniversityLuzhouChina
| | - Weiye Cai
- Department of Orthopedics and Traumatology (Trauma and Bone‐Setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine HospitalSouthwest Medical UniversityLuzhouChina
| | - Daqian Zhou
- Department of Orthopedics and Traumatology (Trauma and Bone‐Setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine HospitalSouthwest Medical UniversityLuzhouChina
| | - Yang Zhou
- Department of Orthopedics and Traumatology (Trauma and Bone‐Setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine HospitalSouthwest Medical UniversityLuzhouChina
| | - Liquan Wang
- Department of Orthopedics and Traumatology (Trauma and Bone‐Setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine HospitalSouthwest Medical UniversityLuzhouChina
| | - Houyin Shi
- Department of Orthopedics and Traumatology (Trauma and Bone‐Setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine HospitalSouthwest Medical UniversityLuzhouChina
| | - Qi Hao
- Orthopedic Surgery, The Affiliated Traditional Chinese Medicine HospitalSouthwest Medical UniversityLuzhouChina
| | - Zongchao Liu
- Department of Orthopedics and Traumatology (Trauma and Bone‐Setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine HospitalSouthwest Medical UniversityLuzhouChina
- Department of OrthopedicsLuzhou Longmatan District People's HospitalLuzhouChina
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2
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Wang Z, Shi H, Silveira PA, Mithieux SM, Wong WC, Liu L, Pham NTH, Hawkett BS, Wang Y, Weiss AS. Tropoelastin modulates systemic and local tissue responses to enhance wound healing. Acta Biomater 2024; 184:54-67. [PMID: 38871204 DOI: 10.1016/j.actbio.2024.06.009] [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: 12/11/2023] [Revised: 05/13/2024] [Accepted: 06/06/2024] [Indexed: 06/15/2024]
Abstract
Wound healing is facilitated by biomaterials-based grafts and substantially impacted by orchestrated inflammatory responses that are essential to the normal repair process. Tropoelastin (TE) based materials are known to shorten the period for wound repair but the mechanism of anti-inflammatory performance is not known. To explore this, we compared the performance of the gold standard Integra Dermal Regeneration Template (Integra), polyglycerol sebacate (PGS), and TE blended with PGS, in a murine full-thickness cutaneous wound healing study. Systemically, blending with TE favorably increased the F4/80+ macrophage population by day 7 in the spleen and contemporaneously induced elevated plasma levels of anti-inflammatory IL-10. In contrast, the PGS graft without TE prompted prolonged inflammation, as evidenced by splenomegaly and greater splenic granulocyte and monocyte fractions at day 14. Locally, the inclusion of TE in the graft led to increased anti-inflammatory M2 macrophages and CD4+T cells at the wound site, and a rise in Foxp3+ regulatory T cells in the wound bed by day 7. We conclude that the TE-incorporated skin graft delivers a pro-healing environment by modulating systemic and local tissue responses. STATEMENT OF SIGNIFICANCE: Tropoelastin (TE) has shown significant benefits in promoting the repair and regeneration of damaged human tissues. In this study, we show that TE promotes an anti-inflammatory environment that facilitates cutaneous wound healing. In a mouse model, we find that inserting a TE-containing material into a full-thickness wound results in defined, pro-healing local and systemic tissue responses. These findings advance our understanding of TE's restorative value in tissue engineering and regenerative medicine, and pave the way for clinical applications.
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Affiliation(s)
- Ziyu Wang
- School of Life and Environmental Sciences, the University of Sydney, NSW 2006, Australia; Charles Perkins Centre, the University of Sydney, NSW 2006, Australia
| | - Huaikai Shi
- Burns Research and Reconstructive Surgery, Anzac Research Institute, NSW 2139, Australia; Asbestos and Dust Disease Research Institute, Concord Hospital, Sydney, NSW 2139, Australia
| | - Pablo A Silveira
- Dendritic Cell Group, ANZAC Research Institute, Concord Hospital, Sydney, NSW 2139, Australia
| | - Suzanne M Mithieux
- School of Life and Environmental Sciences, the University of Sydney, NSW 2006, Australia; Charles Perkins Centre, the University of Sydney, NSW 2006, Australia
| | - Wai Cheng Wong
- Charles Perkins Centre, the University of Sydney, NSW 2006, Australia
| | - Linyang Liu
- School of Life and Environmental Sciences, the University of Sydney, NSW 2006, Australia; Charles Perkins Centre, the University of Sydney, NSW 2006, Australia
| | - Nguyen T H Pham
- Key Centre for Polymers and Colloids, School of Chemistry, the University of Sydney, NSW 2006, Australia
| | - Brian S Hawkett
- Key Centre for Polymers and Colloids, School of Chemistry, the University of Sydney, NSW 2006, Australia
| | - Yiwei Wang
- Burns Research and Reconstructive Surgery, Anzac Research Institute, NSW 2139, Australia; Jiangsu Provincial Engineering Research Centre of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China.
| | - Anthony S Weiss
- School of Life and Environmental Sciences, the University of Sydney, NSW 2006, Australia; Charles Perkins Centre, the University of Sydney, NSW 2006, Australia; The University of Sydney Nano Institute, the University of Sydney, NSW 2006, Australia.
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3
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Pan Y, Qi Y, Fei C, Feng Z, Ma Y, Wang C, Han J. Novel Sprayable Antioxidative Dressing Based on Fullerene and Curdlan for Accelerating Chronic Wound Healing. Macromol Rapid Commun 2024:e2400240. [PMID: 38876473 DOI: 10.1002/marc.202400240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/27/2024] [Indexed: 06/16/2024]
Abstract
The effective treatment of chronic wounds represents a critical global medical challenge demanding urgent attention. Persistent inflammation, driven by an excess of reactive oxygen radicals, sets in motion a detrimental cycle leading to chronic wounds and impeding the natural healing process. This study develops a sprayable wound dressing by covalently grafting amino fullerene to carboxymethylated curdlan (CMC-C). This novel dressing exhibits excellent biocompatibility, antioxidant, and reactive oxygen species scavenging properties. Furthermore, it demonstrates a targeted affinity for HEK-a cells, efficiently reducing the inflammatory response while promoting cell proliferation and migration in vitro. Moreover, the animal experiment investigations reveal that CMC-C significantly accelerates chronic wounds healing by regulating the inflammatory process, promoting collagen deposition, and improving vascularization. These results demonstrate the potential of the sprayable dressing (CMC-C) in curing the healing of chronic wounds through the modulation of the inflammatory microenvironment. Overall, the sprayable hydrogel dressing based on water-soluble derivative of fullerene and curdlan emerges as a potential approach for clinical applications in the treatment of chronic wounds.
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Affiliation(s)
- Yiwen Pan
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Inner Mongolia, 010020, China
| | - Yuxuan Qi
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Inner Mongolia, 010020, China
| | - Chenglong Fei
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Inner Mongolia, 010020, China
| | - Zihang Feng
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Inner Mongolia, 010020, China
| | - Yuguo Ma
- Beijing National Laboratory for Molecular Sciences, Centre for Soft Matter Science and Engineering, Key Lab of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, China
| | - Chunru Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jingfen Han
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Inner Mongolia, 010020, China
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Bianchini E, Ashley Sin YJ, Lee YJ, Lin C, Anil U, Hamill C, Cowman MK, Kirsch T. The Role of Hyaluronan/Receptor for Hyaluronan-Mediated Motility Interactions in the Modulation of Macrophage Polarization and Cartilage Repair. THE AMERICAN JOURNAL OF PATHOLOGY 2024; 194:1047-1061. [PMID: 38403161 PMCID: PMC11156159 DOI: 10.1016/j.ajpath.2024.01.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 01/11/2024] [Accepted: 01/29/2024] [Indexed: 02/27/2024]
Abstract
Hyaluronan (HA), a negatively charged linear glycosaminoglycan, is a key macromolecular component of the articular cartilage extracellular matrix. The differential effects of HA are determined by a spatially/temporally regulated display of HA receptors, such as CD44 and receptor for hyaluronan-mediated motility (RHAMM). HA signaling through CD44 with RHAMM has been shown to stimulate inflammation and fibrotic processes. This study shows an increased expression of RHAMM in proinflammatory macrophages. Interfering with HA/RHAMM interactions using a 15-mer RHAMM-mimetic, HA-binding peptide, together with high-molecular-weight (HMW) HA reduced the expression and release of inflammatory markers and increased the expression of anti-inflammatory markers in proinflammatory macrophages. HA/RHAMM interactions were interfered in vivo during the regeneration of a full-thickness cartilage defect after microfracture surgery in rabbits using three intra-articular injections of 15-mer RHAMM-mimetic. HA-binding peptide together with HMWHA reduced the number of proinflammatory macrophages and increased the number of anti-inflammatory macrophages in the injured knee joint and greatly improved the repair of the cartilage defect compared with intra-articular injections of HMWHA alone. These findings suggest that HA/RHAMM interactions play a key role in cartilage repair/regeneration via stimulating inflammatory and fibrotic events, including increasing the ratio of proinflammatory/anti-inflammatory macrophages. Interfering with these interactions reduced inflammation and greatly improved cartilage repair.
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Affiliation(s)
- Emilia Bianchini
- Department of Biomedical Engineering, New York University Tandon School of Engineering, New York, New York
| | - Yun Jin Ashley Sin
- Department of Biomedical Engineering, New York University Tandon School of Engineering, New York, New York
| | - You Jin Lee
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, New York
| | - Charles Lin
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, New York
| | - Utkarsh Anil
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, New York
| | - Cassie Hamill
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, New York
| | - Mary K Cowman
- Department of Biomedical Engineering, New York University Tandon School of Engineering, New York, New York; Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, New York
| | - Thorsten Kirsch
- Department of Biomedical Engineering, New York University Tandon School of Engineering, New York, New York; Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, New York.
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5
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Shah SA, Oakes RS, Jewell CM. Advancing immunotherapy using biomaterials to control tissue, cellular, and molecular level immune signaling in skin. Adv Drug Deliv Rev 2024; 209:115315. [PMID: 38670230 PMCID: PMC11111363 DOI: 10.1016/j.addr.2024.115315] [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: 11/14/2023] [Revised: 03/20/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024]
Abstract
Immunotherapies have been transformative in many areas, including cancer treatments, allergies, and autoimmune diseases. However, significant challenges persist in extending the reach of these technologies to new indications and patients. Some of the major hurdles include narrow applicability to patient groups, transient efficacy, high cost burdens, poor immunogenicity, and side effects or off-target toxicity that results from lack of disease-specificity and inefficient delivery. Thus, there is a significant need for strategies that control immune responses generated by immunotherapies while targeting infection, cancer, allergy, and autoimmunity. Being the outermost barrier of the body and the first line of host defense, the skin presents a unique immunological interface to achieve these goals. The skin contains a high concentration of specialized immune cells, such as antigen-presenting cells and tissue-resident memory T cells. These cells feature diverse and potent combinations of immune receptors, providing access to cellular and molecular level control to modulate immune responses. Thus, skin provides accessible tissue, cellular, and molecular level controls that can be harnessed to improve immunotherapies. Biomaterial platforms - microneedles, nano- and micro-particles, scaffolds, and other technologies - are uniquely capable of modulating the specialized immunological niche in skin by targeting these distinct biological levels of control. This review highlights recent pre-clinical and clinical advances in biomaterial-based approaches to target and modulate immune signaling in the skin at the tissue, cellular, and molecular levels for immunotherapeutic applications. We begin by discussing skin cytoarchitecture and resident immune cells to establish the biological rationale for skin-targeting immunotherapies. This is followed by a critical presentation of biomaterial-based pre-clinical and clinical studies aimed at controlling the immune response in the skin for immunotherapy and therapeutic vaccine applications in cancer, allergy, and autoimmunity.
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Affiliation(s)
- Shrey A Shah
- Fischell Department of Bioengineering, University of Maryland, College Park, 8278 Paint Branch Drive, College Park, MD 20742, USA
| | - Robert S Oakes
- Fischell Department of Bioengineering, University of Maryland, College Park, 8278 Paint Branch Drive, College Park, MD 20742, USA; Department of Veterans Affairs, VA Maryland Health Care System, 10. N Green Street, Baltimore, MD 21201, USA
| | - Christopher M Jewell
- Fischell Department of Bioengineering, University of Maryland, College Park, 8278 Paint Branch Drive, College Park, MD 20742, USA; Department of Veterans Affairs, VA Maryland Health Care System, 10. N Green Street, Baltimore, MD 21201, USA; Robert E. Fischell Institute for Biomedical Devices, 8278 Paint Branch Drive, College Park, MD 20742, USA; Department of Microbiology and Immunology, University of Maryland Medical School, Baltimore, MD, 21201, USA; Marlene and Stewart Greenebaum Cancer Center, 22 S. Greene Street, Suite N9E17, Baltimore, MD, 21201, USA.
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6
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Savitri C, Ha SS, Kwon JW, Kim SH, Kim Y, Park HM, Kwon H, Ji MJ, Park K. Human Fibroblast-Derived Matrix Hydrogel Accelerates Regenerative Wound Remodeling Through the Interactions with Macrophages. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305852. [PMID: 38476050 PMCID: PMC11095160 DOI: 10.1002/advs.202305852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 02/21/2024] [Indexed: 03/14/2024]
Abstract
Herein, a novel extracellular matrix (ECM) hydrogel is proposed fabricated solely from decellularized, human fibroblast-derived matrix (FDM) toward advanced wound healing. This FDM-gel is physically very stable and viscoelastic, while preserving the natural ECM diversity and various bioactive factors. Subcutaneously transplanted FDM-gel provided a permissive environment for innate immune cells infiltration. Compared to collagen hydrogel, excellent wound healing indications of FDM-gel treated in the full-thickness wounds are noticed, particularly hair follicle formation via highly upregulated β-catenin. Sequential analysis of the regenerated wound tissues disclosed that FDM-gel significantly alleviated pro-inflammatory cytokine and promoted M2-like macrophages, along with significantly elevated vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) level. A mechanistic study demonstrated that macrophages-FDM interactions through cell surface integrins α5β1 and α1β1 resulted in significant production of VEGF and bFGF, increased Akt phosphorylation, and upregulated matrix metalloproteinase-9 activity. Interestingly, blocking such interactions using specific inhibitors (ATN161 for α5β1 and obtustatin for α1β1) negatively affected those pro-healing growth factors secretion. Macrophages depletion animal model significantly attenuated the healing effect of FDM-gel. This study demonstrates that the FDM-gel is an excellent immunomodulatory material that is permissive for host cells infiltration, resorbable with time, and interactive with macrophages, where it thus enables regenerative matrix remodeling toward a complete wound healing.
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Affiliation(s)
- Cininta Savitri
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
| | - Sang Su Ha
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
| | - Jae Won Kwon
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
- Division of Bio‐Medical Science and Technology, KIST SchoolUniversity of Science and Technology (UST)Seoul02792Republic of Korea
| | - Sung Hoon Kim
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
| | - Young‐Min Kim
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
- Division of Bio‐Medical Science and Technology, KIST SchoolUniversity of Science and Technology (UST)Seoul02792Republic of Korea
| | - Hyun Mee Park
- Advanced Analysis and Data CenterKISTSeoul02792Republic of Korea
| | - Haejin Kwon
- Advanced Analysis and Data CenterKISTSeoul02792Republic of Korea
| | - Mi Jung Ji
- Advanced Analysis and Data CenterKISTSeoul02792Republic of Korea
| | - Kwideok Park
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
- Division of Bio‐Medical Science and Technology, KIST SchoolUniversity of Science and Technology (UST)Seoul02792Republic of Korea
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7
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Cioce A, Cavani A, Cattani C, Scopelliti F. Role of the Skin Immune System in Wound Healing. Cells 2024; 13:624. [PMID: 38607063 PMCID: PMC11011555 DOI: 10.3390/cells13070624] [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: 01/25/2024] [Revised: 03/21/2024] [Accepted: 03/31/2024] [Indexed: 04/13/2024] Open
Abstract
Wound healing is a dynamic and complex process, characterized by the coordinated activities of multiple cell types, each with distinct roles in the stages of hemostasis, inflammation, proliferation, and remodeling. The cells of the immune system not only act as sentinels to monitor the skin and promote homeostasis, but they also play an important role in the process of skin wound repair. Skin-resident and recruited immune cells release cytokines and growth factors that promote the amplification of the inflammatory process. They also work with non-immune cells to remove invading pathogens and debris, as well as guide the regeneration of damaged host tissues. Dysregulation of the immune system at any stage of the process may lead to a prolongation of the inflammatory phase and the development of a pathological condition, such as a chronic wound. The present review aims to summarize the roles of different immune cells, with special emphasis on the different stages of the wound healing process.
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Affiliation(s)
| | | | | | - Fernanda Scopelliti
- National Institute for Health, Migration and Poverty INMP/NIHMP, Via di S.Gallicano, 25, 00153 Rome, Italy; (A.C.); (A.C.); (C.C.)
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Abraham D, Lescoat A, Stratton R. Emerging diagnostic and therapeutic challenges for skin fibrosis in systemic sclerosis. Mol Aspects Med 2024; 96:101252. [PMID: 38325132 DOI: 10.1016/j.mam.2024.101252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/29/2024] [Indexed: 02/09/2024]
Abstract
Systemic sclerosis (also called scleroderma, SSc) is a chronic autoimmune disorder characterized by excessive collagen deposition leading to skin fibrosis and various internal organ manifestations. The emergent diagnostics and therapeutic strategies for scleroderma focus on early detection and targeted interventions to improve patient outcomes and quality of life. Diagnostics for SSc have evolved significantly in recent years, driven by advancements in serological markers and imaging techniques. Autoantibody profiling, especially antinuclear antibodies (ANA) and specific scleroderma-associated autoantibodies, aids in identifying subsets of scleroderma and predicting disease progression. Furthermore, novel imaging modalities, such as high-frequency ultrasonography and optical coherence tomography, enable early detection of skin fibrosis and internal organ involvement, enhancing the diagnostic precision and allowing for tailored management. Therapeutic strategies for SSc are multifaceted, targeting immune dysregulation, vascular abnormalities, and fibrotic processes. Emerging biologic agents have shown promise in clinical trials, including monoclonal antibodies directed against key cytokines involved in fibrosis, such as transforming growth factor-β (TGF-β) and interleukin-6 (IL-6). Additionally, small-molecule inhibitors that disrupt fibrotic pathways, like tyrosine kinase inhibitors, have exhibited potential in limiting collagen deposition and preventing disease progression. Stem cell therapy, cell ablation and gene editing techniques hold great potential in regenerating damaged tissue and halting fibrotic processes. Early intervention remains crucial in managing SSc, as irreversible tissue damage often occurs in advanced stages. Novel diagnostic methods, such as biomarkers and gene expression profiling, are being explored to identify individuals at high risk for developing progressive severe disease and intervene proactively. Furthermore, patient-tailored therapeutic approaches, employing a combination of immunosuppressive agents and targeted anti-fibrotic therapies, are being investigated to improve treatment efficacy while minimizing adverse effects. The emergent diagnostics and therapeutic strategies in scleroderma are transforming the management of this challenging disease. Nevertheless, ongoing research and clinical trials are needed to optimize the efficacy and safety of these novel approaches in the complex and diverse spectrum of SSc manifestations.
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Affiliation(s)
- David Abraham
- UCL Centre for Rheumatology, Royal Free Hospital, UCL Division of Medicine, Department of Inflammation, London, UK
| | - Alain Lescoat
- Department of Internal Medicine and Clinical Immunology, Rennes University Hospital, Rennes, France
| | - Richard Stratton
- UCL Centre for Rheumatology, Royal Free Hospital, UCL Division of Medicine, Department of Inflammation, London, UK.
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Zhou X, Shen H, Wu S, Mu L, Yang H, Wu J. An amphibian-derived cathelicidin accelerates cutaneous wound healing through its main regulatory effect on phagocytes. Int Immunopharmacol 2024; 129:111595. [PMID: 38295541 DOI: 10.1016/j.intimp.2024.111595] [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: 11/13/2023] [Revised: 01/16/2024] [Accepted: 01/23/2024] [Indexed: 02/02/2024]
Abstract
Cathelicidins are an important family of antimicrobial peptides (AMPs) involved in the innate immunity in vertebrates. The mammalian cathelicidins have been well characterized, but the relationship between structure and function in amphibian cathelicidins is still not well understood. In this study, a novel 29-residue cathelicidin antimicrobial peptide (BugaCATH) was identified from the skin of Bufo gargarizans. Unlike other AMPs, BugaCATH does not display any direct antimicrobial effects in vitro. However, it effectively promotes full-thickness wound repair in mice. Following injury, BugaCATH initiates and expedites the inflammatory stage by recruiting neutrophils and macrophages to the wound site. BugaCATH not only regulates neutrophil phagocytic activity but also stimulates the generation of cytokines (TNF-α, IL-6, and IL-1β) and chemokines (CXCL1, CXCL2, CCL2, and CCL3) in macrophages and in mice. Furthermore, it promotes macrophage M2 polarization that facilitates the conversion from a pro-inflammatory macrophage-dominated wound environment to an anti-inflammatory one during the mid to late stages, which is crucial for reducing inflammation and effective wound repair. The MAPK (ERK, JNK, and p38) and NF-κB-NLRP3 signaling pathways are involved in the activity. Moreover, BugaCATH directly enhances the migration of keratinocytes and vascular endothelial cells without affecting their proliferation. Notably, BugaCATH significantly improves the proliferation of keratinocytes and endothelial cells in the presence of macrophages. The current study revealed that in addition to proliferation of keratinocytes and endothelial cells, BugaCATH possesses the ability to modulate inflammatory processes during skin injury through its regulatory effect on phagocytes. The combination of these capabilities makes BugaCATH a potent candidate for skin wound therapy.
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Affiliation(s)
- Xiaoyan Zhou
- School of Basic Medical Sciences, Kunming Medical University, Kunming, Yunnan, China
| | - Huan Shen
- School of Basic Medical Sciences, Kunming Medical University, Kunming, Yunnan, China
| | - Shuxin Wu
- School of Basic Medical Sciences, Kunming Medical University, Kunming, Yunnan, China
| | - Lixian Mu
- School of Basic Medical Sciences, Kunming Medical University, Kunming, Yunnan, China.
| | - Hailong Yang
- School of Basic Medical Sciences, Kunming Medical University, Kunming, Yunnan, China.
| | - Jing Wu
- School of Basic Medical Sciences, Kunming Medical University, Kunming, Yunnan, China.
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He Y, Cen Y, Tian M. Immunomodulatory hydrogels for skin wound healing: cellular targets and design strategy. J Mater Chem B 2024; 12:2435-2458. [PMID: 38284157 DOI: 10.1039/d3tb02626d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Skin wounds significantly impact the global health care system and represent a significant burden on the economy and society due to their complicated dynamic healing processes, wherein a series of immune events are required to coordinate normal and sequential healing phases, involving multiple immunoregulatory cells such as neutrophils, macrophages, keratinocytes, and fibroblasts, since dysfunction of these cells may impede skin wound healing presenting persisting inflammation, impaired vascularization, and excessive collagen deposition. Therefore, cellular target-based immunomodulation is promising to promote wound healing as cells are the smallest unit of life in immune response. Recently, immunomodulatory hydrogels have become an attractive avenue to promote skin wound healing. However, a detailed and comprehensive review of cellular targets and related hydrogel design strategies remains lacking. In this review, the roles of the main immunoregulatory cells participating in skin wound healing are first discussed, and then we highlight the cellular targets and state-of-the-art design strategies for immunomodulatory hydrogels based on immunoregulatory cells that cover defect, infected, diabetic, burn and tumor wounds and related scar healing. Finally, we discuss the barriers that need to be addressed and future prospects to boost the development and prosperity of immunomodulatory hydrogels.
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Affiliation(s)
- Yinhai He
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ying Cen
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Meng Tian
- Department of Neurosurgery and Neurosurgery Research Laboratory, West China Hospital, Sichuan University, Chengdu, 610041, China.
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11
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Zhang R, Huang X, Wu Q, Chu S, Bai X, Zhou Y, You J, Yang C, Tan H. Multifunctional gelatin nanoparticle stabilized-Pickering emulsion hydrogel based on dextran and amikacin with controlled drug release and enhanced antibacterial capability for promoting infected wound healing. Int J Biol Macromol 2024; 262:130172. [PMID: 38360230 DOI: 10.1016/j.ijbiomac.2024.130172] [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: 11/24/2023] [Revised: 01/17/2024] [Accepted: 02/12/2024] [Indexed: 02/17/2024]
Abstract
Plant essential oils possess broad-spectral antimicrobial property, but the applications are impeded by their insolubility in water, extreme volatility, and strong irritation. Nanoparticle-stabilized emulsion (Pickering emulsion) gels are colloidal systems with ability to accommodate two immiscible phases in one system. The thick adsorption nanoparticle layers and the cross-linked networks in continuous phase could provide protective barriers for antibacterial oil and achieve on-demand controlled release. An emulsion hydrogel templated from gelatin nanoparticle-stabilized emulsion is one-pot constructed by conducting a tunable cross-linking process between oxidized dextran (Odex) and amikacin in the continuous phase and concomitantly trapping tea tree essential oil (TO) droplets in the three-dimensional network. The resulted emulsion hydrogel presents tunable gelation time, adequate mechanical strength, fascinating injectability, and self-healing capability. It is pH-responsiveness and presents controlled release of amikacin and TO, exhibiting a long-term bacteriostasis of 144 h. The emulsion hydrogel facilitates the outstanding wound healing efficiency in 14 days (95.2 ± 0.8 % of wound closure), accompanied with enhanced collagen deposition and angiogenic activities. The incorporation of TO into emulsion hydrogel system reduced its irritation and improved its biosafety, showing potential application in bacteria inhibition even as implants in vivo.
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Affiliation(s)
- Ruiyun Zhang
- College of Medicine, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Xiao Huang
- College of Medicine, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Qiaoli Wu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Shirun Chu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Xue Bai
- College of Medicine, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Yuanyuan Zhou
- College of Medicine, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Jing You
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Chen Yang
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of pharmacy, Chengdu University, Chengdu 610106, PR China
| | - Huan Tan
- College of Medicine, Southwest Jiaotong University, Chengdu 610031, PR China.
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12
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Ma X, Ning W, Geng Y, Shao H, Liu Y, Liu F, Zhang D, Chi B, Hou Y, Fu X. An ECM-mimicking assembled gelatin/hyaluronic acid hydrogel with antibacterial and radical scavenging functions for accelerating open wound healing. Biomed Mater 2023; 19:015008. [PMID: 37972551 DOI: 10.1088/1748-605x/ad0d85] [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: 07/11/2023] [Accepted: 11/15/2023] [Indexed: 11/19/2023]
Abstract
A multifunctional hydrogel dressing with hemostatic, antibacterial, and reactive oxygen species (ROS)-removing properties is highly desirable for the clinical treatment of open wounds. Although many wound dressings have been prepared, the modification of polymers is often involved in the preparation process, and the uncertainty of biological safety and stability of modified polymers hinders the clinical application of products. In this study, inspired by the composition and crosslinking pattern of extracellular matrix (ECM), a deeply ECM-mimicking multifunctional hydrogel dressing is created. Tannic acid (TA) and poly-ϵ-lysine (EPL) are added into a gelatin/hyaluronic acid (Gel/HA) matrix, and a stable hydrogel is formed due to the formation of the triple helix bundles of gelatin and hydrogen bonds between polymers. The introduction of TA and EPL endows the ECM-mimicking hydrogel with stable rheological properties, as well as antibacterial and hemostatic functions. The as-produced hydrogels have suitable swelling ratio, enzyme degradability, and good biocompatibility. In addition, it also shows a significant ability to eliminate ROS, which is confirmed by the elimination of 2,2-diphenyl-1-picrylhydrazyl free radical. Full-thickness skin wound repair experiment and histological analysis of the healing site in mice demonstrate that the developed ECM-mimicking Gel/HA hydrogels have a prominent effect on ECM formation and promotion of wound closure. Taken together, these findings suggest that the multifunctional hydrogels deeply mimicking the ECM are promising candidates for the clinical treatment of open wounds.
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Affiliation(s)
- Xuebin Ma
- Shandong Provincial Key Laboratory of Biomedical Polymers, Shandong Provincial Key Laboratory of Biopharmaceuticals, Shandong Academy of Pharmaceutical Sciences, Jinan, Shandong 250100, People's Republic of China
| | - Wenli Ning
- School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong 250021, People's Republic of China
| | - Yiming Geng
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250012, People's Republic of China
| | - Huarong Shao
- Shandong Provincial Key Laboratory of Biomedical Polymers, Shandong Provincial Key Laboratory of Biopharmaceuticals, Shandong Academy of Pharmaceutical Sciences, Jinan, Shandong 250100, People's Republic of China
| | - Yang Liu
- Shandong Provincial Key Laboratory of Biomedical Polymers, Shandong Provincial Key Laboratory of Biopharmaceuticals, Shandong Academy of Pharmaceutical Sciences, Jinan, Shandong 250100, People's Republic of China
| | - Fei Liu
- Shandong Provincial Key Laboratory of Biomedical Polymers, Shandong Provincial Key Laboratory of Biopharmaceuticals, Shandong Academy of Pharmaceutical Sciences, Jinan, Shandong 250100, People's Republic of China
| | - Daizhou Zhang
- Shandong Provincial Key Laboratory of Biomedical Polymers, Shandong Provincial Key Laboratory of Biopharmaceuticals, Shandong Academy of Pharmaceutical Sciences, Jinan, Shandong 250100, People's Republic of China
| | - Bo Chi
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211800, People's Republic of China
| | - Yali Hou
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250012, People's Republic of China
| | - Xiao Fu
- School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong 250021, People's Republic of China
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250012, People's Republic of China
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13
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Byun MJ, Seo HS, Lee J, Ban K, Oh S, Lee YY, Lim J, Lee NK, Wang CPJ, Kim M, Han JH, Park J, Paik T, Park HH, Park TE, Park W, Kim SN, Park DH, Park CG. Biofunctional Inorganic Layered Double Hydroxide Nanohybrid Enhances Immunotherapeutic Effect on Atopic Dermatitis Treatment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2304862. [PMID: 38050931 DOI: 10.1002/smll.202304862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 11/08/2023] [Indexed: 12/07/2023]
Abstract
Atopic dermatitis (AD) is a widespread, recurrent, and chronic inflammatory skin condition that imposes a major burden on patients. Conventional treatments, such as corticosteroids, are associated with various side effects, underscoring the need for innovative therapeutic approaches. In this study, the possibility of using indole-3-acetic acid-loaded layered double hydroxides (IAA-LDHs) is evaluated as a novel treatment for AD. IAA is an auxin-class plant hormone with antioxidant and anti-inflammatory effects. Following the synthesis of IAA-LDH nanohybrids, their ability to induce M2-like macrophage polarization in macrophages obtained from mouse bone marrow is assessed. The antioxidant activity of IAA-LDH is quantified by assessing the decrease in intracellular reactive oxygen species levels. The anti-inflammatory and anti-atopic characteristics of IAA-LDH are evaluated in a mouse model of AD by examining the cutaneous tissues, immunological organs, and cells. The findings suggest that IAA-LDH has great therapeutic potential as a candidate for AD treatment based on its in vitro and in vivo modulation of AD immunology, enhancement of macrophage polarization, and antioxidant activity. This inorganic drug delivery technology represents a promising new avenue for the development of safe and effective AD treatments.
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Affiliation(s)
- Min Ji Byun
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
| | - Hee Seung Seo
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
| | - Joonghak Lee
- Department of Engineering Chemistry, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Kitae Ban
- Department of Engineering Chemistry, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Serim Oh
- Department of Engineering Chemistry, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Yun Young Lee
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
- Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Jaesung Lim
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
| | - Na Kyeong Lee
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
| | - Chi-Pin James Wang
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
| | - Minjeong Kim
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
| | - Jun-Hyeok Han
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
| | - Juwon Park
- Department of Tropical Medicine, Medical Microbiology, and Pharmacology, John A. Burns School Medicine, University of Hawai'i at Manoa, Honolulu, Hawaii, 96813, USA
| | - Taejong Paik
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Hee Ho Park
- Department of Bioengineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Tae-Eun Park
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Wooram Park
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Se-Na Kim
- Research and Development Center, MediArk Inc., Cheongju, Chungbuk, 28644, Republic of Korea
- Department of Industrial Cosmetic Science, College of Bio-Health University System, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Dae-Hwan Park
- Department of Engineering Chemistry, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
- Department of Industrial Cosmetic Science, College of Bio-Health University System, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
- Department of Synchrotron Radiation Science and Technology, College of Bio-Health University System, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
- LANG SCIENCE Inc, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Chun Gwon Park
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
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14
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Gujju R, Dewanjee S, Singh K, Andugulapati SB, Tirunavalli SK, Jaina VK, Kandimalla R, Misra S, Puvvada N. Carbon Dots' Potential in Wound Healing: Inducing M2 Macrophage Polarization and Demonstrating Antibacterial Properties for Accelerated Recovery. ACS APPLIED BIO MATERIALS 2023; 6:4814-4827. [PMID: 37886889 DOI: 10.1021/acsabm.3c00578] [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] [Indexed: 10/28/2023]
Abstract
Bacterial infections and persistent inflammation can impede the intrinsic healing process of wounds. To combat this issue, researchers have delved into the potential use of carbon dots (CDs) in the regulation of inflammation and counteract infections. These CDs were synthesized using a microwave-assisted hydrothermal process and have demonstrated outstanding antibacterial and antibiofilm properties against Gram-positive and Gram-negative bacteria. Additionally, CDs displayed biocompatibility at therapeutic concentrations and the ability to specifically target mitochondria. CD treatment effectively nullified lipopolysaccharide-triggered reactive oxygen species production by macrophages, while simultaneously promoting macrophage polarization toward an anti-inflammatory phenotype (M2), leading to a reduction in inflammation and an acceleration in wound healing. In vitro scratch assays also revealed that CDs facilitated the tissue-repairing process by stimulating epithelial cell migration during reepithelialization. In vivo studies using CDs topically applied to lipopolysaccharide (LPS)-stimulated wounds in C57/BL6 mice demonstrated significant improvements in wound healing due to enhanced fibroblast proliferation, angiogenesis, and collagen deposition. Crucially, histological investigations showed no indications of systemic toxicity in vital organs. Collectively, the application of CDs has shown immense potential in speeding up the wound-healing process by regulating inflammation, preventing bacterial infections, and promoting tissue repair. These results suggest that further clinical translation of CDs should be considered.
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Affiliation(s)
- Rajesh Gujju
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Saikat Dewanjee
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Kamini Singh
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Centre for Natural Products & Traditional Knowledge, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500007, India
| | - Sai Balaji Andugulapati
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Satya Krishna Tirunavalli
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Vinod Kumar Jaina
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ramesh Kandimalla
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Department of Biochemistry, Kakatiya Medical College, Warangal, Telangana 506007, India
| | - Sunil Misra
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Nagaprasad Puvvada
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Department of Chemistry, School of Advanced Science, VIT-AP University, Amaravati, Andhra Pradesh 522237, India
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15
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Liu Y, Deng Z, Zhang J, Wu Y, Wu N, Geng L, Yue Y, Zhang Q, Wang J. Preparation of a Dual-Functional Sulfated Galactofucan Polysaccharide/Poly(vinyl alcohol) Hydrogel to Promote Macrophage Recruitment and Angiogenic Potential in Diabetic Wound Healing. Biomacromolecules 2023; 24:4831-4842. [PMID: 37677087 DOI: 10.1021/acs.biomac.3c00569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
A diabetic foot ulcer is a common high-risk complication in diabetic patients, but there is still no universal dressing for clinical treatment. In this study, a novel dual-functional sulfated galactofucan polysaccharide/poly(vinyl alcohol) hydrogel (DPH20) is developed during freeze-thaw cycles. Experimental results indicated that DPH20 had a high specific surface area, a dense porous structure, and a good swelling property, which could effectively adsorb the exudates and keep the wound moist. Furthermore, DPH20 exhibited remarkably recruited macrophage capability and accelerated the inflammation stage by improving the expression of the mRNA of CCL2, CCR2, and CCL22 in macrophages. DPH20 could promote cell migration and growth factor release to accelerate tube formation under hyperglycemic conditions in cell models of L929s and HUEVCs, respectively. Significantly, DPH20 accelerates the reconstruction of the full-thickness skin wound by accelerating the recruitment of macrophages, promoting angiogenesis, and releasing the growth factor in the diabetic mouse model. Collectively, DPH20 is a promising multifunctional dressing to reshape the damaged tissue environment and accelerate wound healing. This study provides an efficient strategy to repair and regenerate diabetic skin ulcers.
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Affiliation(s)
- Yang Liu
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
- College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266003, China
| | - Zhenzhen Deng
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, 168 Wenhai Road, Qingdao 266237, China
| | - Jingjing Zhang
- Qingdao Eighth People's Hospital, 84 Fengshan Road, Qingdao 266121, China
| | - Yumeng Wu
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, 168 Wenhai Road, Qingdao 266237, China
| | - Ning Wu
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Lihua Geng
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, 168 Wenhai Road, Qingdao 266237, China
| | - Yang Yue
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, 168 Wenhai Road, Qingdao 266237, China
| | - Quanbin Zhang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, 168 Wenhai Road, Qingdao 266237, China
| | - Jing Wang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, 168 Wenhai Road, Qingdao 266237, China
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16
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Souza TF, Ramos MV, Pierdoná TM, Rabelo LM, Vasconcelos MS, Carmo LD, Rangel GF, Paiva YT, Sousa ET, Figueiredo IS, Alencar NM. Wound tissue remodeling by latex exudate of Himatanthus drasticus: A plant species used in Brazilian folk medicine. Heliyon 2023; 9:e21843. [PMID: 38027902 PMCID: PMC10660522 DOI: 10.1016/j.heliyon.2023.e21843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/29/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
This work investigated the healing properties of proteins extracted of latex (HdLP) on excisional wounds. Cell toxicity of HdLP was investigated carried out in murine fibroblasts after incubation with HdLP (12.5-100 μg/ml). The dermal irritability test was performed to evaluate dermal reactions. The wounds were performed and treated with vehicle or HdLP (0.5 %, 1.0 %, and 2.0 %). The macroscopic parameters, histological analysis and measurement of inflammatory markers and mediators were evaluated. HdLP did not exhibit cytotoxicity and did not induce skin irritation. HdLP stimulated the release of IL-1β at the beginning of the inflammatory phase. This effect probably favored the earlier release of IL-10 by macrophages, during the proliferative phase. The shortening and completeness of healing were characterized by fibroblast proliferation and the presence of newly synthesized collagen fibers. This was accompanied by well-organized re-epithelialization. The involvement of latex proteins in this activity is reported for the first time.
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Affiliation(s)
- Tamiris F.G. Souza
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Márcio V. Ramos
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Taiana M. Pierdoná
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
- Faculty of Kinesiology and Recreation Management, Children's Hospital Research Institute of Manitoba (CHRIM), University of Manitoba, Winnipeg, Manitoba, Canada
| | - Liviane M.A. Rabelo
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Mirele S. Vasconcelos
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
- Instituto Federal de Educação Ciência e Tecnologia do Ceara (IFCE), Campus Baturité, Ceará, Brazil
| | - Luana D. Carmo
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Gisele F.P. Rangel
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Yuri T.C.N. Paiva
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Emilia T. Sousa
- Departamento de Patologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | | | - Nylane M.N. Alencar
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
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17
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Pan D, Schofield JB, Schellhardt L, Snyder-Warwick AK, Mackinnon SE, Li X, Wood MD. A feasibility study transplanting macrophages to a segmental nerve injury. Muscle Nerve 2023; 68:894-900. [PMID: 37737007 PMCID: PMC10840956 DOI: 10.1002/mus.27977] [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: 10/11/2022] [Revised: 06/16/2023] [Accepted: 09/03/2023] [Indexed: 09/23/2023]
Abstract
INTRODUCTION/AIMS Promoting regeneration after segmental nerve injury repair is a challenge, but improving angiogenesis could be beneficial. Macrophages facilitate regeneration after injury by promoting angiogenesis. Our aim in this study was to evaluate the feasibility and effects of transplanting exogenous macrophages to a segmental nerve injury. METHODS Bone marrow-derived cells were harvested from donor mice and differentiated to macrophages (BMDM), then suspended within fibrin hydrogels to facilitate BMDM transplantation. BMDM survival was characterized in vitro. The effect of this BMDM fibrin hydrogel construct at a nerve injury site was assessed using a mouse sciatic nerve gap injury. Mice were equally distributed to "fibrin+Mφ" (fibrin hydrogels containing culture medium and BMDM) or "fibrin" hydrogel control (fibrin hydrogels containing culture medium alone) groups. Flow cytometry (n = 3/group/endpoint) and immunohistochemical analysis (n = 5/group/endpoint) of the nerve gap region were performed at days 3, 5, and 7 after repair. RESULTS Incorporating macrophage colony-stimulating factor (M-CSF) improved BMDM survival and expansion. Transplanted BMDM survived for at least 7 days in a nerve gap (~40% retained at day 3 and ~15% retained at day 7). From transplantation, macrophage quantities within the nerve gap were elevated when comparing fibrin+Mφ with fibrin control (~25% vs. 3% at day 3 and ~14% vs. 6% at day 7). Endothelial cells increased by about fivefold within the nerve gap, and axonal extension into the nerve gap increased almost twofold for fibrin+Mφ compared with fibrin control. DISCUSSION BMDM suspended within fibrin hydrogels at a nerve gap do not impair regeneration.
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Affiliation(s)
- Deng Pan
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Jonathon Blake Schofield
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Lauren Schellhardt
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Alison K Snyder-Warwick
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Susan E Mackinnon
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Xiaowei Li
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Matthew D Wood
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
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18
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Rauchenwald T, Handle F, Connolly CE, Degen A, Seifarth C, Hermann M, Tripp CH, Wilflingseder D, Lobenwein S, Savic D, Pölzl L, Morandi EM, Wolfram D, Skvortsova II, Stoitzner P, Haybaeck J, Konschake M, Pierer G, Ploner C. Preadipocytes in human granulation tissue: role in wound healing and response to macrophage polarization. Inflamm Regen 2023; 43:53. [PMID: 37904253 PMCID: PMC10617061 DOI: 10.1186/s41232-023-00302-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 10/15/2023] [Indexed: 11/01/2023] Open
Abstract
BACKGROUND Chronic non-healing wounds pose a global health challenge. Under optimized conditions, skin wounds heal by the formation of scar tissue. However, deregulated cell activation leads to persistent inflammation and the formation of granulation tissue, a type of premature scar tissue without epithelialization. Regenerative cells from the wound periphery contribute to the healing process, but little is known about their cellular fate in an inflammatory, macrophage-dominated wound microenvironment. METHODS We examined CD45-/CD31-/CD34+ preadipocytes and CD68+ macrophages in human granulation tissue from pressure ulcers (n=6) using immunofluorescence, immunohistochemistry, and flow cytometry. In vitro, we studied macrophage-preadipocyte interactions using primary human adipose-derived stem cells (ASCs) exposed to conditioned medium harvested from IFNG/LPS (M1)- or IL4/IL13 (M2)-activated macrophages. Macrophages were derived from THP1 cells or CD14+ monocytes. In addition to confocal microscopy and flow cytometry, ASCs were analyzed for metabolic (OXPHOS, glycolysis), morphological (cytoskeleton), and mitochondrial (ATP production, membrane potential) changes. Angiogenic properties of ASCs were determined by HUVEC-based angiogenesis assay. Protein and mRNA levels were assessed by immunoblotting and quantitative RT-PCR. RESULTS CD45-/CD31-/CD34+ preadipocytes were observed with a prevalence of up to 1.5% of total viable cells in human granulation tissue. Immunofluorescence staining suggested a spatial proximity of these cells to CD68+ macrophages in vivo. In vitro, ASCs exposed to M1, but not to M2 macrophage secretome showed a pro-fibrotic response characterized by stress fiber formation, elevated alpha smooth muscle actin (SMA), and increased expression of integrins ITGA5 and ITGAV. Macrophage-secreted IL1B and TGFB1 mediated this response via the PI3K/AKT and p38-MAPK pathways. In addition, ASCs exposed to M1-inflammatory stress demonstrated reduced migration, switched to a glycolysis-dominated metabolism with reduced ATP production, and increased levels of inflammatory cytokines such as IL1B, IL8, and MCP1. Notably, M1 but not M2 macrophages enhanced the angiogenic potential of ASCs. CONCLUSION Preadipocyte fate in wound tissue is influenced by macrophage polarization. Pro-inflammatory M1 macrophages induce a pro-fibrotic response in ASCs through IL1B and TGFB1 signaling, while anti-inflammatory M2 macrophages have limited effects. These findings shed light on cellular interactions in chronic wounds and provide important information for the potential therapeutic use of ASCs in human wound healing.
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Affiliation(s)
- Tina Rauchenwald
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Florian Handle
- Institute of Pathology, Neuropathology and Molecular Pathology, Medical University Innsbruck, Innsbruck, Austria
| | - Catherine E Connolly
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Antonia Degen
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Christof Seifarth
- Institute of Clinical and Functional Anatomy, Medical University of Innsbruck, Innsbruck, Austria
| | - Martin Hermann
- Department of Anesthesiology and Critical Care Medicine, Medical University of Innsbruck, Innsbruck, Austria
| | - Christoph H Tripp
- Department of Dermatology, Venereology and Allergology, Medical University of Innsbruck, Innsbruck, Austria
| | - Doris Wilflingseder
- Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Susanne Lobenwein
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Dragana Savic
- Department of Therapeutic Radiology and Oncology, Medical University of Innsbruck, EXTRO-Lab, Tyrolean Cancer Research Institute, Innsbruck, Austria
| | - Leo Pölzl
- Department of Cardiac Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Evi M Morandi
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Dolores Wolfram
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Ira-Ida Skvortsova
- Department of Therapeutic Radiology and Oncology, Medical University of Innsbruck, EXTRO-Lab, Tyrolean Cancer Research Institute, Innsbruck, Austria
| | - Patrizia Stoitzner
- Department of Dermatology, Venereology and Allergology, Medical University of Innsbruck, Innsbruck, Austria
| | - Johannes Haybaeck
- Institute of Pathology, Neuropathology and Molecular Pathology, Medical University Innsbruck, Innsbruck, Austria
- Diagnostic and Research Center for Molecular Biomedicine, Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Marko Konschake
- Institute of Clinical and Functional Anatomy, Medical University of Innsbruck, Innsbruck, Austria
| | - Gerhard Pierer
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Christian Ploner
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Innsbruck, Austria.
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Correa-Araujo L, Prieto-Abello L, Lara-Bertrand A, Medina-Solano M, Guerrero L, Camacho B, Silva-Cote I. Bioengineered skin constructs based on mesenchymal stromal cells and acellular dermal matrix exposed to inflammatory microenvironment releasing growth factors involved in skin repair. Stem Cell Res Ther 2023; 14:306. [PMID: 37880776 PMCID: PMC10601120 DOI: 10.1186/s13287-023-03535-w] [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: 05/09/2023] [Accepted: 10/11/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND Skin tissue engineering is a rapidly evolving field of research that effectively combines stem cells and biological scaffolds to replace damaged tissues. Human Wharton's jelly mesenchymal stromal cells (hWJ-MSCs) are essential to generate tissue constructs, due to their potent immunomodulatory effects and release of paracrine factors for tissue repair. Here, we investigated whether hWJ-MSC grown on human acellular dermal matrix (hADM) scaffolds and exposed to a proinflammatory environment maintain their ability to produce in vitro growth factors involved in skin injury repair and promote in vivo wound healing. METHODS We developed a novel method involving physicochemical and enzymatic treatment of cadaveric human skin to obtain hADM scaffold. Subsequently, skin bioengineered constructs were generated by seeding hWJ-MSCs on the hADM scaffold (construct 1) and coating it with human platelet lysate clot (hPL) (construct 2). Either construct 1 or 2 were then incubated with proinflammatory cytokines (IL-1α, IL-1β, IL-6, TNF-α) for 12, 24, 48, 72 and 96 h. Supernatants from treated and untreated constructs and hWJ-MSCs on tissue culture plate (TCP) were collected, and concentration of the following growth factors, bFGF, EGF, HGF, PDGF, VEGF and Angiopoietin-I, was determined by immunoassay. We also asked whether hWJ-MSCs in the construct 1 have potential toward epithelial differentiation after being cultured in an epithelial induction stimulus using an air-liquid system. Immunostaining was used to analyze the synthesis of epithelial markers such as filaggrin, involucrin, plakoglobin and the mesenchymal marker vimentin. Finally, we evaluated the in vivo potential of hADM and construct 1 in a porcine full-thickness excisional wound model. RESULTS We obtained and characterized the hADM and confirmed the viability of hWJ-MSCs on the scaffold. In both constructs without proinflammatory treatment, we reported high bFGF production. In contrast, the levels of other growth factors were similar to the control (hWJ-MSC/TCP) with or without proinflammatory treatment. Except for PDGF in the stimulated group. These results indicated that the hADM scaffold maintained or enhanced the production of these bioactive molecules by hWJ-MSCs. On the other hand, increased expression of filaggrin, involucrin, and plakoglobin and decreased expression of vimentin were observed in constructs cultured in an air-liquid system. In vivo experiments demonstrated the potential of both hADM and hADM/hWJ-MSCs constructs to repair skin wounds with the formation of stratified epithelium, basement membrane and dermal papillae, improving the appearance of the repaired tissue. CONCLUSIONS hADM is viable to fabricate a tissue construct with hWJ-MSCs able to promote the in vitro synthesis of growth factors and differentiation of these cells toward epithelial lineage, as well as, promote in a full-thickness skin injury the new tissue formation. These results indicate that hADM 3D architecture and its natural composition improved or maintained the cell function supporting the potential therapeutic use of this matrix or the construct for wound repair and providing an effective tissue engineering strategy for skin repair.
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Affiliation(s)
- Luz Correa-Araujo
- Tissue Engineering Unit, Instituto Distrital de Ciencia Biotecnología e Innovación en Salud - IDCBIS, Carrera 32 # 12-81, Secretaria Distrital de Salud, Bogotá, Colombia
| | - Leonardo Prieto-Abello
- Tissue Engineering Unit, Instituto Distrital de Ciencia Biotecnología e Innovación en Salud - IDCBIS, Carrera 32 # 12-81, Secretaria Distrital de Salud, Bogotá, Colombia
| | - Adriana Lara-Bertrand
- Tissue Engineering Unit, Instituto Distrital de Ciencia Biotecnología e Innovación en Salud - IDCBIS, Carrera 32 # 12-81, Secretaria Distrital de Salud, Bogotá, Colombia
| | - Martha Medina-Solano
- Tissue Engineering Unit, Instituto Distrital de Ciencia Biotecnología e Innovación en Salud - IDCBIS, Carrera 32 # 12-81, Secretaria Distrital de Salud, Bogotá, Colombia
| | - Linda Guerrero
- Tissue Bank, Instituto Distrital de Ciencia Biotecnología e Innovación en Salud - IDCBIS, Bogotá, Colombia
| | - Bernardo Camacho
- Tissue Engineering Unit, Instituto Distrital de Ciencia Biotecnología e Innovación en Salud - IDCBIS, Carrera 32 # 12-81, Secretaria Distrital de Salud, Bogotá, Colombia
- Tissue Bank, Instituto Distrital de Ciencia Biotecnología e Innovación en Salud - IDCBIS, Bogotá, Colombia
| | - Ingrid Silva-Cote
- Tissue Engineering Unit, Instituto Distrital de Ciencia Biotecnología e Innovación en Salud - IDCBIS, Carrera 32 # 12-81, Secretaria Distrital de Salud, Bogotá, Colombia.
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20
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Dutta SD, Ganguly K, Patil TV, Randhawa A, Lim KT. Unraveling the potential of 3D bioprinted immunomodulatory materials for regulating macrophage polarization: State-of-the-art in bone and associated tissue regeneration. Bioact Mater 2023; 28:284-310. [PMID: 37303852 PMCID: PMC10248805 DOI: 10.1016/j.bioactmat.2023.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 04/29/2023] [Accepted: 05/20/2023] [Indexed: 06/13/2023] Open
Abstract
Macrophage-assisted immunomodulation is an alternative strategy in tissue engineering, wherein the interplay between pro-inflammatory and anti-inflammatory macrophage cells and body cells determines the fate of healing or inflammation. Although several reports have demonstrated that tissue regeneration depends on spatial and temporal regulation of the biophysical or biochemical microenvironment of the biomaterial, the underlying molecular mechanism behind immunomodulation is still under consideration for developing immunomodulatory scaffolds. Currently, most fabricated immunomodulatory platforms reported in the literature show regenerative capabilities of a particular tissue, for example, endogenous tissue (e.g., bone, muscle, heart, kidney, and lungs) or exogenous tissue (e.g., skin and eye). In this review, we briefly introduced the necessity of the 3D immunomodulatory scaffolds and nanomaterials, focusing on material properties and their interaction with macrophages for general readers. This review also provides a comprehensive summary of macrophage origin and taxonomy, their diverse functions, and various signal transduction pathways during biomaterial-macrophage interaction, which is particularly helpful for material scientists and clinicians for developing next-generation immunomodulatory scaffolds. From a clinical standpoint, we briefly discussed the role of 3D biomaterial scaffolds and/or nanomaterial composites for macrophage-assisted tissue engineering with a special focus on bone and associated tissues. Finally, a summary with expert opinion is presented to address the challenges and future necessity of 3D bioprinted immunomodulatory materials for tissue engineering.
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Affiliation(s)
- Sayan Deb Dutta
- Department of Biosystems Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea
- Institute of Forest Science, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Keya Ganguly
- Department of Biosystems Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Tejal V. Patil
- Department of Biosystems Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Aayushi Randhawa
- Department of Biosystems Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Ki-Taek Lim
- Department of Biosystems Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea
- Institute of Forest Science, Kangwon National University, Chuncheon, 24341, Republic of Korea
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon, 24341, Republic of Korea
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21
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Li R, Rouse M, Pace BT, Grey SF, Mclaughlin K, Schobel SA, Simons MP. Host CD3 + T-cells can significantly modulate phage treatment effects on bacterial bioburden in mouse models. Front Microbiol 2023; 14:1240176. [PMID: 37766890 PMCID: PMC10520710 DOI: 10.3389/fmicb.2023.1240176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/03/2023] [Indexed: 09/29/2023] Open
Abstract
Wound healing is a complex system including such key players as host, microbe, and treatments. However, little is known about their dynamic interactions. Here we explored the interplay between: (1) bacterial bioburden and host immune responses, (2) bacterial bioburden and wound size, and (3) treatments and wound size, using murine models and various treatment modalities: Phosphate buffer saline (PBS or vehicle, negative control), doxycycline, and two doses of A. baumannii phage mixtures. We uncovered that the interplay between bacterial bioburden and host immune system may be bidirectional, and that there is an interaction between host CD3+ T-cells and phage dosage, which significantly impacts bacterial bioburden. Furthermore, the bacterial bioburden and wound size association is significantly modulated by the host CD3+ T-cells. When the host CD3+ T-cells (x on log10 scale) are in the appropriate range (1.35 < x < = 1.5), we observed a strong association between colony forming units (CFU) and wound size, indicating a hallmark of wound healing. On the basis of the findings and our previous work, we proposed an integrated parallel systems biology model.
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Affiliation(s)
- Renhua Li
- Uniformed Services University of the Health Sciences, Bethesda, MD, United States
- Surgical Critical Care Initiative (SC2i), Uniformed Services University (USU), Bethesda, MD, United States
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, MD, United States
| | - Michael Rouse
- Uniformed Services University of the Health Sciences, Bethesda, MD, United States
- Surgical Critical Care Initiative (SC2i), Uniformed Services University (USU), Bethesda, MD, United States
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, MD, United States
- Walter Reed National Military Medical Center, Bethesda, MD, United States
| | - Brendon T. Pace
- Uniformed Services University of the Health Sciences, Bethesda, MD, United States
- Eastern Virginia Medical School, Norfolk, VA, United States
| | - Scott F. Grey
- Uniformed Services University of the Health Sciences, Bethesda, MD, United States
- Surgical Critical Care Initiative (SC2i), Uniformed Services University (USU), Bethesda, MD, United States
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, MD, United States
| | - Kimberly Mclaughlin
- Uniformed Services University of the Health Sciences, Bethesda, MD, United States
- Surgical Critical Care Initiative (SC2i), Uniformed Services University (USU), Bethesda, MD, United States
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, MD, United States
| | - Seth A. Schobel
- Uniformed Services University of the Health Sciences, Bethesda, MD, United States
- Surgical Critical Care Initiative (SC2i), Uniformed Services University (USU), Bethesda, MD, United States
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, MD, United States
| | - Mark P. Simons
- Uniformed Services University of the Health Sciences, Bethesda, MD, United States
- Naval Medical Research Center, Silver Spring, MD, United States
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22
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Gao X, Lu C, Miao Y, Ren J, Cai X. Role of macrophage polarisation in skin wound healing. Int Wound J 2023; 20:2551-2562. [PMID: 36785490 PMCID: PMC10410349 DOI: 10.1111/iwj.14119] [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: 12/06/2022] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 02/15/2023] Open
Abstract
Skin wound healing is a complex pathophysiological change that is driven by macrophages and their secreted related factors. Depending on the stimuli, macrophages can be polarised into two subtypes of macrophages with completely different phenotypes and functions, namely M1 and M2. The aim of this study was to explore the role of M1 and M2 macrophages in skin healing in order to develop new drugs for the treatment of refractory wounds. Primary bone marrow-derived macrophages (BMDMs) were isolated from rats and expanded in vitro using macrophage colony stimulating factor. In addition, the BMDMs were polarised into the M1 and M2 subtypes using lipopolysaccharides (LPS) and interleukin-4 (IL-4), respectively. Cytokine levels in the culture supernatants were measured by an enzyme linked immunosorbent assay. Epidermal wounds were made on the dorsal surface of rats, and treated with M1 or M2 cell suspensions or phosphate buffered saline. Wound healing was recorded on days 1, 3, 7, 10, and 14 after stamping, and the wound healing rate was measured by haematoxylin-eosin and Masson staining. A total of 3 to 4 × 107 bone marrow cells were extracted from each rat femur. The BMDM culture had 87.1% CD45+ cells, 89.2% CD68+ cells, and 86.5% CD45+ CD68+ cells. Furthermore, IL-12 (P < .05) and IL-10 (P ≥ .05) levels, respectively, increased and decreased in the culture supernatants of the M1 cells after LPS stimulation compared with those in the M0 (unstimulated) group. Likewise, IL-4 stimulation led to a significant increase in IL-10 levels (P < .01) in the conditioned media of M2 cells, while that of IL-12 decreased slightly (P ≥ .05). In the rat model, the infusion of M2 cells accelerated wound healing and tissue regeneration, whereas the M1 cells delayed the recruitment of inflammatory cells, granulation growth, and collagen deposition, which impaired wound healing. Macrophage polarisation and activation are critical for skin wound healing. While exogenous M1 cell infusion delayed wound healing, the M2 cells promoted wound healing in a rat model.
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Affiliation(s)
- Xuejun Gao
- Department of Thyroid SurgeryThe Affiliated Hospital of Qingdao UniversityQingdaoChina
| | - Chao Lu
- Department of Hand and Foot SurgeryThe Affiliated Hospital of Qingdao UniversityQingdaoChina
| | - Yuanxin Miao
- Department of Plastic SurgeryThe Affiliated Hospital of Qingdao UniversityQingdaoChina
| | - Jizhen Ren
- Department of Plastic SurgeryThe Affiliated Hospital of Qingdao UniversityQingdaoChina
| | - Xia Cai
- Department of Plastic SurgeryThe Affiliated Hospital of Qingdao UniversityQingdaoChina
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23
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Chen X, Shi X, Xiao H, Xiao D, Xu X. Research hotspot and trend of chronic wounds: A bibliometric analysis from 2013 to 2022. Wound Repair Regen 2023; 31:597-612. [PMID: 37552080 DOI: 10.1111/wrr.13117] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/29/2023] [Accepted: 07/31/2023] [Indexed: 08/09/2023]
Abstract
Chronic wounds have been confirmed as a vital health problem facing people in the global population aging process. While significant progress has been achieved in the study of chronic wounds, the treatment effect should be further improved. The number of publications regarding chronic wounds has been rising rapidly. In this study, bibliometric analysis was conducted to explore the hotspots and trends in the research on chronic wounds. All relevant studies on chronic wounds between 2013 and 2022 were collected from the PubMed database of the Web of Science (WOS) and the National Center for Biotechnology Information (NCBI). The data were processed and visualised using a series of software. On that basis, more insights can be gained into hotspots and trends of this research field. Wound Repair and Regeneration has the highest academic achievement in the field of chronic wound research. The United States has been confirmed as the most productive country, and the University of California System ranks high among other institutions. Augustin, M. is the author of the most published study, and Frykberg, RG et al. published the most cited study. Furthermore, the hotspots of wound research over the last decade were identified (e.g., bandages, infection and biofilms, pathophysiology and therapy). This study will help researchers gain insights into chronic wound research's hotspots and trends accurately and quickly. Moreover, the exploration of bacterial biofilm and the pathophysiological mechanism of the chronic wound will lay a solid foundation and clear direction for treating chronic wounds.
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Affiliation(s)
- Xinghan Chen
- Department of Burns and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xiujun Shi
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Haitao Xiao
- Department of Burns and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Dongqin Xiao
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xuewen Xu
- Department of Burns and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Sen S, Samat R, Jash M, Ghosh S, Roy R, Mukherjee N, Ghosh S, Sarkar J, Ghosh S. Potential Broad-Spectrum Antimicrobial, Wound Healing, and Disinfectant Cationic Peptide Crafted from Snake Venom. J Med Chem 2023; 66:11555-11572. [PMID: 37566805 DOI: 10.1021/acs.jmedchem.3c01150] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2023]
Abstract
Antimicrobial cationic peptides are intriguing and propitious antibiotics for the future, even against multidrug-resistant superbugs. Venoms serve as a source of cutting-edge therapeutics and innovative, unexplored medicines. In this study, a novel cationic peptide library consisting of seven sequences was designed and synthesized from the snake venom cathelicidin, batroxicidin (BatxC), with the inclusion of the FLPII motif at the N-terminus. SP1V3_1 demonstrated exceptional antibacterial effectiveness against Escherichia coli, methicillin-resistant Staphylococcus aureus (MRSA), Pseudomonas aeruginosa, and Klebsiella pneumoniae and destroyed the bacteria by depolarizing, rupturing, and permeabilizing their membranes, as evident from fluorescence assays, atomic force microscopy, and scanning electron microscopy. SP1V3_1 was observed to modulate the immune response in LPS-elicited U937 cells and exhibited good antibiofilm activity against MRSA and K. pneumoniae. The peptide promoted wound healing and disinfection in the murine model. The study demonstrated that SP1V3_1 is an exciting peptide lead and may be explored further for the development of better therapeutic peptides.
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Affiliation(s)
- Samya Sen
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
- iHUB Drishti Foundation, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Ramkamal Samat
- Smart Healthcare Department, Interdisciplinary Research Platform, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Moumita Jash
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Satyajit Ghosh
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Rajsekhar Roy
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Nabanita Mukherjee
- Smart Healthcare Department, Interdisciplinary Research Platform, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Surojit Ghosh
- Smart Healthcare Department, Interdisciplinary Research Platform, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Jayita Sarkar
- Centre for Research and Development of Scientific Instruments, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Surajit Ghosh
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
- Smart Healthcare Department, Interdisciplinary Research Platform, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
- iHUB Drishti Foundation, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
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25
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Xu Y, Hu K, Liu C, Du P, Zhou F, Lu Y, Fu Q, Xu J, Lyu G. Eschar dissolution and the immunoregulator effect of keratinase on burn wounds. Sci Rep 2023; 13:13238. [PMID: 37580372 PMCID: PMC10425458 DOI: 10.1038/s41598-023-39765-4] [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: 02/01/2023] [Accepted: 07/30/2023] [Indexed: 08/16/2023] Open
Abstract
At present, enzyme debridement preparation has shown a good curative effect on eschar removal of burn wounds. Keratinase has shown great potential in enzymatic debridement because of its good fibrin-degrading ability. In this study, the debridement of keratinase was examined by using a third degree burn wound model in rats. We observed the wound, and keratinase shortened the time of eschar dissolution after debridement. Histopathology and immunofluorescence staining showed that the eschar in the keratinase group became thinner, inflammatory cell infiltration in the wound increased, the fluorescence intensity of the macrophage surface marker CD68 increased, and the CD163/CD86 ratio increased. In bone marrow-derived macrophages (BMDMs), there was no significant difference in the activity of CCK-8 in cells in the keratinase group compared with the control group. The fluorescence intensity of the keratinase group was higher than that of the control group. At 12 h, the cell scratches were obviously closed. The number of migrated Transwell cells increased. Flow cytometry and immunofluorescence analysis showed increased expression of CD206 and Arg-1 and decreased expression of CD86 and iNOS. The gene expression of the Arg-1, iNOS and IL-10 was increased, as shown by qPCR. The secretion of IL-10 was increased and TNF-α was decreased, as shown by ELISA. We concluded that keratinase dissolution of eschar not only has a hydrolytic effect on eschar but may also affect immune regulation to enhance the migration and phagocytosis of macrophages, promote the polarization of macrophages, and further enhance the effect of eschar dissolution. Therefore, keratinase may have good prospects for the debridement of burn wounds.
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Affiliation(s)
- Yan Xu
- Wuxi Clinical Medical College of Nanjing University of Traditional Chinese Medicine, Wuxi, 214041, China
- Affiliated Hospital of Jiangnan University, Wuxi, 214041, China
| | - Kai Hu
- Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Chenyang Liu
- Affiliated Hospital of Jiangnan University, Wuxi, 214041, China
| | - Pan Du
- Jiangnan University, Wuxi, 214122, China
| | - Feifan Zhou
- Medical College of Nantong University, Nantong, 226000, China
| | - Yichi Lu
- Jiangnan University, Wuxi, 214122, China
| | - Qiuyan Fu
- Jiangnan University, Wuxi, 214122, China
| | - Jianmin Xu
- Affiliated Hospital of Jiangnan University, Wuxi, 214041, China.
| | - Guozhong Lyu
- Affiliated Hospital of Jiangnan University, Wuxi, 214041, China.
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26
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Oh MH, Jang J, Lee JH. Polarization of THP-1-Derived Macrophage by Magnesium and MAGT1 Inhibition in Wound Healing. Arch Plast Surg 2023; 50:432-442. [PMID: 37564721 PMCID: PMC10411119 DOI: 10.1055/s-0043-1770114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 05/10/2023] [Indexed: 08/12/2023] Open
Abstract
Background Macrophages play a major role in wound healing and prevent infection from the outside. Polarization conversion of macrophages regulates aspects of inflammation, and two macrophages, M1 (classically activated) and M2 (alternatively activated), exist at both ends of broad-spectrum macrophage polarization. Thus, we aimed to investigate whether macrophage polarization can be artificially regulated. To this end, MgSO4 and small-interfering RNA (siRNA) targeting magnesium transport 1 (MAGT1) were used to investigate the effects of intracellular magnesium (Mg2+) concentrations on the differentiation of macrophages in vitro. Methods THP-1 derived macrophages maintained in a culture medium containing 5 mM MgSO4 and siRNA to inhibit the expression of MAGT1. As comparative groups, THP-1 derived macrophages polarized into M1 and M2 macrophages by treatment with M1, M2 inducer cytokine. The polarization status of each group of cells was confirmed by cell surface antigen expression and cytokine secretion. Results We found that MgSO4 treatment increased CD163 and CD206, similar to the effect noted in the M2 group. The expression of CD80 and HLA-DR was increased in the group treated with MAGT1 siRNA, similar to the effect noted in the M1 group. Functional assays demonstrated that the group treated with MgSO4 secreted higher levels of IL-10, whereas the MAGT1 siRNA-treated group secreted higher levels of IL-6 cytokines. Additionally, the conditional medium of the Mg2+ treated group showed enhanced migration of keratinocytes and fibroblasts. Conclusion Mg2+ can help to end the delay in wound healing caused by persistent inflammation in the early stages.
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Affiliation(s)
- Mun Ho Oh
- Eulji Medi-Bio Research Institute, Eulji University, Seoul, Republic of Korea
| | - JaeHyuk Jang
- Department of Plastic and Reconstructive Surgery, Nowon Eulji Medical Center, School of Medicine, Eulji University, Seoul, Republic of Korea
| | - Jong Hun Lee
- Department of Plastic and Reconstructive Surgery, Nowon Eulji Medical Center, School of Medicine, Eulji University, Seoul, Republic of Korea
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Nikovics K, Favier AL, Rocher M, Mayinga C, Gomez J, Dufour-Gaume F, Riccobono D. In Situ Identification of Both IL-4 and IL-10 Cytokine-Receptor Interactions during Tissue Regeneration. Cells 2023; 12:1522. [PMID: 37296643 PMCID: PMC10253026 DOI: 10.3390/cells12111522] [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: 04/21/2023] [Revised: 05/19/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
Cytokines secreted by individual immune cells regulate tissue regeneration and allow communication between various cell types. Cytokines bind to cognate receptors and trigger the healing process. Determining the orchestration of cytokine interactions with their receptors on their cellular targets is essential to fully understanding the process of inflammation and tissue regeneration. To this end, we have investigated the interactions of Interleukin-4 cytokine (IL-4)/Interleukin-4 cytokine receptor (IL-4R) and Interleukin-10 cytokine (IL-10)/Interleukin-10 cytokine receptor (IL-10R) using in situ Proximity Ligation Assays in a regenerative model of skin, muscle and lung tissues in the mini-pig. The pattern of protein-protein interactions was distinct for the two cytokines. IL-4 bound predominantly to receptors on macrophages and endothelial cells around the blood vessels while the target cells of IL-10 were mainly receptors on muscle cells. Our results show that in situ studies of cytokine-receptor interactions can unravel the fine details of the mechanism of action of cytokines.
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Affiliation(s)
- Krisztina Nikovics
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (A.-L.F.); (M.R.); (C.M.); (J.G.)
| | - Anne-Laure Favier
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (A.-L.F.); (M.R.); (C.M.); (J.G.)
| | - Mathilde Rocher
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (A.-L.F.); (M.R.); (C.M.); (J.G.)
| | - Céline Mayinga
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (A.-L.F.); (M.R.); (C.M.); (J.G.)
| | - Johanna Gomez
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (A.-L.F.); (M.R.); (C.M.); (J.G.)
| | - Frédérique Dufour-Gaume
- War Traumatology Unit, Department of NRBC Defense, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France;
| | - Diane Riccobono
- Department of Radiation Bioeffects, French Armed Forces Biomedical Research Institute, 1, Place du Général Valérie André, 91223 Brétigny-sur-Orge, France;
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Gaebel R, Lang C, Vasudevan P, Lührs L, de Carvalho KAT, Abdelwahid E, David R. New Approaches in Heart Research: Prevention Instead of Cardiomyoplasty? Int J Mol Sci 2023; 24:ijms24109017. [PMID: 37240361 DOI: 10.3390/ijms24109017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/10/2023] [Accepted: 05/17/2023] [Indexed: 05/28/2023] Open
Abstract
Cardiovascular diseases are the leading cause of death in industrialized nations. Due to the high number of patients and expensive treatments, according to the Federal Statistical Office (2017) in Germany, cardiovascular diseases account for around 15% of total health costs. Advanced coronary artery disease is mainly the result of chronic disorders such as high blood pressure, diabetes, and dyslipidemia. In the modern obesogenic environment, many people are at greater risk of being overweight or obese. The hemodynamic load on the heart is influenced by extreme obesity, which often leads to myocardial infarction (MI), cardiac arrhythmias, and heart failure. In addition, obesity leads to a chronic inflammatory state and negatively affects the wound-healing process. It has been known for many years that lifestyle interventions such as exercise, healthy nutrition, and smoking cessation drastically reduce cardiovascular risk and have a preventive effect against disorders in the healing process. However, little is known about the underlying mechanisms, and there is significantly less high-quality evidence compared to pharmacological intervention studies. Due to the immense potential of prevention in heart research, the cardiologic societies are calling for research work to be intensified, from basic understanding to clinical application. The topicality and high relevance of this research area are also evident from the fact that in March 2018, a one-week conference on this topic with contributions from top international scientists took place as part of the renowned "Keystone Symposia" ("New Insights into the Biology of Exercise"). Consistent with the link between obesity, exercise, and cardiovascular disease, this review attempts to draw lessons from stem-cell transplantation and preventive exercise. The application of state-of-the-art techniques for transcriptome analysis has opened new avenues for tailoring targeted interventions to very individual risk factors.
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Affiliation(s)
- Ralf Gaebel
- Department of Cardiac Surgery, Rostock University Medical Center, 18057 Rostock, Germany
- Department of Life, Light & Matter, Interdisciplinary Faculty, Rostock University, 18059 Rostock, Germany
| | - Cajetan Lang
- Department of Cardiac Surgery, Rostock University Medical Center, 18057 Rostock, Germany
- Department of Life, Light & Matter, Interdisciplinary Faculty, Rostock University, 18059 Rostock, Germany
| | - Praveen Vasudevan
- Department of Cardiac Surgery, Rostock University Medical Center, 18057 Rostock, Germany
- Department of Life, Light & Matter, Interdisciplinary Faculty, Rostock University, 18059 Rostock, Germany
| | - Larissa Lührs
- Advanced Therapy and Cellular Biotechnology in Regenerative Medicine Department, Pelé Pequeno Prίncipe Research Institute & Pequeno Prίncipe Faculties, Ave. Silva Jardim, P.O. Box 80240-020, Curitiba 1632, Brazil
| | - Katherine Athayde Teixeira de Carvalho
- Advanced Therapy and Cellular Biotechnology in Regenerative Medicine Department, Pelé Pequeno Prίncipe Research Institute & Pequeno Prίncipe Faculties, Ave. Silva Jardim, P.O. Box 80240-020, Curitiba 1632, Brazil
| | - Eltyeb Abdelwahid
- Feinberg School of Medicine, Feinberg Cardiovascular Research Institute, Northwestern University, Chicago, IL 60611, USA
| | - Robert David
- Department of Cardiac Surgery, Rostock University Medical Center, 18057 Rostock, Germany
- Department of Life, Light & Matter, Interdisciplinary Faculty, Rostock University, 18059 Rostock, Germany
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Astuti SD, Pertiwi WI, Wahyuningsih SPA, Permatasari PAD, Nurdin DZI, Syahrom A. Effectiveness of ozone-laser photodynamic combination therapy for healing wounds infected with methicillin-resistant Staphylococcus aureus in mice. Vet World 2023; 16:1176-1184. [PMID: 37576764 PMCID: PMC10420723 DOI: 10.14202/vetworld.2023.1176-1184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/24/2023] [Indexed: 08/15/2023] Open
Abstract
Background and Aim According to 2013 data from the Ministry of Health of the Republic of Indonesia, there were 8.2% more wounds than typical in Indonesia; 25.4% were open wounds, 70.9% were abrasions and bruises, and 23.2% were lacerations. A wound is defined as damage or loss of body tissue. This study aimed to determine the effectiveness of wound healing using red-laser therapy (650 nm, 3.5 J/cm2), blue-laser therapy (405 nm, 3.5 J/cm2), ozone therapy, red-laser therapy (650 nm, 3.5 J/cm2) with ozone, and blue-laser therapy (405 nm, 3.5 J/cm2) with ozone. Materials and Methods One hundred and twelve mice were given incision wounds and infected with methicillin-resistant Staphylococcus aureus (MRSA). The study used a factorial design with two factors: The type of therapy (n = 7) and irradiation time (days 1, 2, 4, and 6). The mice were divided into seven therapy groups: Control group with NaCl, control with Sofra-tulle® treatment, red-laser therapy (650 nm, 3.5 J/cm2), blue-laser therapy (405 nm, 3.5 J/cm2), ozone therapy, red-laser therapy (650 nm, 3.5 J/cm2) with ozone, and blue-laser therapy (405 nm, 3.5 J/cm2) with ozone. This therapy was performed using irradiation perpendicular to the wound area. The photosensitizer used was curcumin 10 mg/mL, which was applied to the wound area before exposure to a laser and ozone. The ozone concentration was 0.011 mg/L with a flow time of 80 s. The test parameters were the number of collagens, bacterial colonies, lymphocytes, monocytes, and wound length measurement to determine their acceleration effects on wound healing. Data were analyzed by a two-way (factorial) analysis of variance test. Results Acceleration of wound healing was significantly different between treatments with a laser or a laser-ozone combination and treatment using 95% sodium chloride (NaCl) and Sofra-tulle®. On day 6, the blue-laser with ozone treatment group had efficiently increased the number of bacteria and reduced the wound length, and the red-laser treatment with ozone increased the amount of collagen. In addition, the red-laser also reduced the number of lymphocytes and monocytes, which can have an impact on accelerating wound healing. Blue-laser therapy was very effective for increasing the number of epithelia. Conclusion The blue- and red-laser combined with ozone treatments effectively accelerated the healing of incisional wounds infected with MRSA bacteria.
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Affiliation(s)
- Suryani Dyah Astuti
- Department of Physics, Faculty of Science and Technology, Airlangga University, Surabaya, 60115, Indonesia
| | - Wahyu Intan Pertiwi
- Department of Physics, Faculty of Science and Technology, Airlangga University, Surabaya, 60115, Indonesia
| | | | | | | | - Ardiansyah Syahrom
- Department of Applied Mechanics and Design, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310, Malaysia
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30
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Bayat M, Sarojini H, Chien S. The role of cluster of differentiation 163-positive macrophages in wound healing: a preliminary study and a systematic review. Arch Dermatol Res 2023; 315:359-370. [PMID: 36283990 DOI: 10.1007/s00403-022-02407-2] [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: 04/05/2022] [Accepted: 10/13/2022] [Indexed: 02/01/2023]
Abstract
This is a literature assessment of essential information and current knowledge that pertains to the potential role for cluster of differentiation (CD) 163+ macrophages in different wound healing models, including extremely rapid tissue regeneration for regenerative medicine purposes. We intend to focus on the beneficial strategies that activate macrophage performance in order to advance the CD163+ macrophage-based therapy approaches to accelerate wound healing. We conducted an extensive literature search of peer reviewed articles obtained from the PubMed, Google Scholar, Scopus, Web of Science, and Cochrane databases by using the keywords "wound healing, CD163+ macrophages, diabetes mellitus, and burn." There were no limitations in terms of publication date. Our search resulted in 300 papers from which 17 articles were screened according to the inclusion criteria. We divided the selected articles into four distinct groups: healthy humans (n = 5); healthy animals (n = 7); humans with diabetes (n = 2); and animals with diabetes (n = 3). CD163 is a biomarker of the M2c macrophage subtype in mammals. Functions of M2c macrophages include angiogenesis, matrix maturation, and phagocytosis, and they activate prior to wounding. M2c produces many cytokines and growth factors, and also contains receptors for numerous cytokines and growth factors. Induction of M2c macrophages from tissue-resident macrophages in the wound bed by a suitable agent, such as delivery of intracellular ATP, appears to induce rapid granulation tissue formation without hypertrophic scarring and significantly reduces the lag time of the wound healing process.
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Affiliation(s)
- Mohammad Bayat
- Price Institute of Surgical Research, University of Louisville and Noveratech LLC, Louisville, KY, USA.
- Department of Biology and Anatomical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Harshini Sarojini
- Price Institute of Surgical Research, University of Louisville and Noveratech LLC, Louisville, KY, USA
| | - Sufan Chien
- Price Institute of Surgical Research, University of Louisville and Noveratech LLC, Louisville, KY, USA.
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31
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Amoddeo A. A mathematical model and numerical simulation for SARS-CoV-2 dynamics. Sci Rep 2023; 13:4575. [PMID: 36941368 PMCID: PMC10027279 DOI: 10.1038/s41598-023-31733-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 03/16/2023] [Indexed: 03/23/2023] Open
Abstract
Since its outbreak the corona virus-19 disease has been particularly aggressive for the lower respiratory tract, and lungs in particular. The dynamics of the abnormal immune response leading to lung damage with fatal outcomes is not yet fully understood. We present a mathematical model describing the dynamics of corona virus disease-19 starting from virus seeding inside the human respiratory tract, taking into account its interaction with the components of the innate immune system as classically and alternatively activated macrophages, interleukin-6 and -10. The numerical simulations have been performed for two different parameter values related to the pro-inflammatory interleukin, searching for a correlation among components dynamics during the early stage of infection, in particular pro- and anti-inflammatory polarizations of the immune response. We found that in the initial stage of infection the immune machinery is unable to stop or weaken the virus progression. Also an abnormal anti-inflammatory interleukin response is predicted, induced by the disease progression and clinically associated to tissue damages. The numerical results well reproduce experimental results found in literature.
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Affiliation(s)
- Antonino Amoddeo
- Department of Civil, Energy, Environment and Materials Engineering, Università 'Mediterranea' di Reggio Calabria, Via Graziella 1, Feo di Vito, 89122, Reggio Calabria, Italy.
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32
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Wang L, Li S, Xiao H, Zhang T, Liu Y, Hu J, Xu D, Lu H. TGF-β1 derived from macrophages contributes to load-induced tendon-bone healing in the murine rotator cuff repair model by promoting chondrogenesis. Bone Joint Res 2023; 12:219-230. [PMID: 37051812 PMCID: PMC10032229 DOI: 10.1302/2046-3758.123.bjr-2022-0368.r1] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/14/2023] Open
Abstract
It has been established that mechanical stimulation benefits tendon-bone (T-B) healing, and macrophage phenotype can be regulated by mechanical cues; moreover, the interaction between macrophages and mesenchymal stem cells (MSCs) plays a fundamental role in tissue repair. This study aimed to investigate the role of macrophage-mediated MSC chondrogenesis in load-induced T-B healing in depth. C57BL/6 mice rotator cuff (RC) repair model was established to explore the effects of mechanical stimulation on macrophage polarization, transforming growth factor (TGF)-β1 generation, and MSC chondrogenesis within T-B enthesis by immunofluorescence and enzyme-linked immunosorbent assay (ELISA). Macrophage depletion was performed by clodronate liposomes, and T-B healing quality was evaluated by histology and biomechanics. In vitro, bone marrow-derived macrophages (BMDMs) were stretched with CELLOAD-300 load system and macrophage polarization was identified by flow cytometry and quantitative real-time polymerase chain reaction (qRT-PCR). MSC chondrogenic differentiation was measured by histochemical analysis and qRT-PCR. ELISA and qRT-PCR were performed to screen the candidate molecules that mediated the pro-chondrogenic function of mechanical stimulated BMDMs. Mechanical stimulation promoted macrophage M2 polarization in vivo and in vitro. The conditioned media from mechanically stimulated BMDMs (MS-CM) enhanced MSC chondrogenic differentiation, and mechanically stimulated BMDMs generated more TGF-β1. Further, neutralizing TGF-β1 in MS-CM can attenuate its pro-chondrogenic effect. In vivo, mechanical stimulation promoted TGF-β1 generation, MSC chondrogenesis, and T-B healing, which were abolished following macrophage depletion. Macrophages subjected to appropriate mechanical stimulation could polarize toward the M2 phenotype and secrete TGF-β1 to promote MSC chondrogenesis, which subsequently augments T-B healing.
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Affiliation(s)
- Linfeng Wang
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Shengcan Li
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Department of Orthopedics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Han Xiao
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Tao Zhang
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Yuqian Liu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jianzhong Hu
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
| | - Daqi Xu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Hongbin Lu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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Tian M, Zhou L, Fan C, Wang L, Lin X, Wen Y, Su L, Dong H. Bimetal-organic framework/GOx-based hydrogel dressings with antibacterial and inflammatory modulation for wound healing. Acta Biomater 2023; 158:252-265. [PMID: 36584802 DOI: 10.1016/j.actbio.2022.12.049] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 11/29/2022] [Accepted: 12/21/2022] [Indexed: 12/29/2022]
Abstract
Antibiotic resistance of bacteria and persistent inflammation are critical challenges in treating bacteria infected wounds. Thus, it is urgent to develop versatile wound dressings that possess high-efficiency antibacterial performance and inflammation regulation. Herein, we have successfully constructed a hydrogel wound dressing consisting of the bimetallic metal-organic framework (MOF) loaded with glucose oxidase (GOx), termed as MOF(Fe-Cu)/GOx-polyacrylamide (PAM) gel. Hydrogel dressings can provide an efficient cascade-catalyzed system to accelerate wound healing via synergistic antibacterial and inflammatory modulation. Importantly, the catalytic property of the bimetallic MOF(Fe-Cu) is about five times that of the monometallic MOF(Fe). Based on such a cascade-catalyzed system, the abundant gluconic acid and H2O2 can be continuously produced by decomposing glucose via GOx. Such gluconic acid can notably improve the peroxidase performance of MOF(Fe-Cu), which can further efficiently decompose H2O2 to achieve the antibacterial. Meanwhile, MOF (Fe Cu)/GOx PAM gel can induce macrophages to change into an M2 phenotype, which can accelerate the transformation of the wound microenvironment to a remodeling state and then accelerate angiogenesis and neurogenesis. This work provides multifunctional bioactive materials for accelerating wound healing and will have great potential in clinical applications. STATEMENT OF SIGNIFICANCE: Antibiotic resistance and persistent inflammation are still the critical reasons for the slow healing of bacteria infected wounds. Herein, we prepared a hydrogel wound dressing composed of bimetallic metal organic framework (MOF) loaded with glucose oxidase (GOx). The catalytic activity of the bimetallic MOF(Fe-Cu) is significantly enhanced due to doping of copper, which makes it possess outstanding antibacterial ability based on cascade catalysis. Such dressing can promote the remodeling of inflammatory immunity by regulating macrophage polarization to suppress over-reactive inflammation, further accelerating the healing of bacteria-infected wounds. This study provides an innovative and effective way to accelerate the healing of bacteria infected wound by combining bacteria killing and inflammation modulation.
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Affiliation(s)
- Meng Tian
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, PR China
| | - Liping Zhou
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, PR China
| | - Chuan Fan
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, PR China
| | - Lirong Wang
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, PR China
| | - Xiangfang Lin
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, PR China
| | - Yongqiang Wen
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, PR China
| | - Lei Su
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, PR China; Marshall Laboratory of Biomedical Engineering, School of Biomedical Engineering, Health Science Centre, Shenzhen University, Shenzhen 518071, PR China.
| | - Haifeng Dong
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, PR China; Marshall Laboratory of Biomedical Engineering, School of Biomedical Engineering, Health Science Centre, Shenzhen University, Shenzhen 518071, PR China.
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34
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Doherty C, Byrne CV, Baqader S, El-Chami C, McBain AJ, Thomason HA. Anti-biofilm effects and healing promotion by silver oxynitrate-based dressings. Sci Rep 2023; 13:2014. [PMID: 36737464 PMCID: PMC9898495 DOI: 10.1038/s41598-022-26856-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 12/21/2022] [Indexed: 02/05/2023] Open
Abstract
Microbial growth within a wound often manifests as biofilms, which can prevent healing and is difficult to eradicate. Novel silver dressings claim to combat wound infection, but anti-biofilm efficacy and effects on healing independent of infection are often unclear. Using in vitro and in vivo S. aureus and P. aeruginosa biofilm models, we report the efficacy of a dressing which produces Ag1+ ions; an Ag1+ dressing containing ethylenediaminetetraacetic acid and benzethonium chloride (Ag1+/EDTA/BC), and a dressing containing silver oxynitrate (Ag Oxysalts) which produces Ag1+, Ag2+ and Ag3+ ions, against wound biofilms, and their effects on healing. Ag1+ dressings had minimal effect on in vitro and murine (C57BL/6j) wound biofilms. In contrast, Ag Oxysalts and Ag1+/EDTA/BC dressings significantly reduced viable bacteria within in vitro biofilms and demonstrated a visible reduction in bacteria and EPS components within murine wound biofilms. The dressings had different effects on the healing of biofilm-infected and uninfected wounds, with Ag Oxysalts dressings having a greater beneficial effect on re-epithelialisation, wound size and inflammation than the control treatment and the other silver dressings. The different physicochemical properties of the silver dressings result in varied effects on wound biofilms and healing which should be considered when selecting dressings to treat biofilm-infected wounds.
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Affiliation(s)
- Christopher Doherty
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PT, UK
| | - Charlotte V Byrne
- 3M Medical Solutions Division. King Edward Court, King Edward Road, Knutsford, Cheshire, WA16 0BE, UK
| | - Sajwa Baqader
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PT, UK.,Community Nursing and Healthcare Department, Faculty of Nursing, Umm Al-Qura University, Mecca, Saudi Arabia
| | - Cecile El-Chami
- School of Biological Sciences, Division of Musculoskeletal and Dermatological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Andrew J McBain
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PT, UK.
| | - Helen A Thomason
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PT, UK. .,3M Medical Solutions Division. King Edward Court, King Edward Road, Knutsford, Cheshire, WA16 0BE, UK.
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Macrophages: From Simple Phagocyte to an Integrative Regulatory Cell for Inflammation and Tissue Regeneration-A Review of the Literature. Cells 2023; 12:cells12020276. [PMID: 36672212 PMCID: PMC9856654 DOI: 10.3390/cells12020276] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/29/2022] [Accepted: 01/07/2023] [Indexed: 01/12/2023] Open
Abstract
The understanding of macrophages and their pathophysiological role has dramatically changed within the last decades. Macrophages represent a very interesting cell type with regard to biomaterial-based tissue engineering and regeneration. In this context, macrophages play a crucial role in the biocompatibility and degradation of implanted biomaterials. Furthermore, a better understanding of the functionality of macrophages opens perspectives for potential guidance and modulation to turn inflammation into regeneration. Such knowledge may help to improve not only the biocompatibility of scaffold materials but also the integration, maturation, and preservation of scaffold-cell constructs or induce regeneration. Nowadays, macrophages are classified into two subpopulations, the classically activated macrophages (M1 macrophages) with pro-inflammatory properties and the alternatively activated macrophages (M2 macrophages) with anti-inflammatory properties. The present narrative review gives an overview of the different functions of macrophages and summarizes the recent state of knowledge regarding different types of macrophages and their functions, with special emphasis on tissue engineering and tissue regeneration.
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Zielińska A, Eder P, Karczewski J, Szalata M, Hryhorowicz S, Wielgus K, Szalata M, Dobrowolska A, Atanasov AG, Słomski R, Souto EB. Tocilizumab-coated solid lipid nanoparticles loaded with cannabidiol as a novel drug delivery strategy for treating COVID-19: A review. Front Immunol 2023; 14:1147991. [PMID: 37033914 PMCID: PMC10073701 DOI: 10.3389/fimmu.2023.1147991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/06/2023] [Indexed: 04/11/2023] Open
Abstract
Commonly used clinical strategies against coronavirus disease 19 (COVID-19), including the potential role of monoclonal antibodies for site-specific targeted drug delivery, are discussed here. Solid lipid nanoparticles (SLN) tailored with tocilizumab (TCZ) and loading cannabidiol (CBD) are proposed for the treatment of COVID-19 by oral route. TCZ, as a humanized IgG1 monoclonal antibody and an interleukin-6 (IL-6) receptor agonist, can attenuate cytokine storm in patients infected with SARS-CoV-2. CBD (an anti-inflammatory cannabinoid and TCZ agonist) alleviates anxiety, schizophrenia, and depression. CBD, obtained from Cannabis sativa L., is known to modulate gene expression and inflammation and also shows anti-cancer and anti-inflammatory properties. It has also been recognized to modulate angiotensin-converting enzyme II (ACE2) expression in SARS-CoV-2 target tissues. It has already been proven that immunosuppressive drugs targeting the IL-6 receptor may ameliorate lethal inflammatory responses in COVID-19 patients. TCZ, as an immunosuppressive drug, is mainly used to treat rheumatoid arthritis, although several attempts have been made to use it in the active hyperinflammatory phase of COVID-19, with promising outcomes. TCZ is currently administered intravenously. It this review, we discuss the potential advances on the use of SLN for oral administration of TCZ-tailored CBD-loaded SLN, as an innovative platform for managing SARS-CoV-2 and related infections.
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Affiliation(s)
- Aleksandra Zielińska
- Institute of Human Genetics, Polish Academy of Sciences Poznan, Poznan, Poland
- *Correspondence: Aleksandra Zielińska, ; Piotr Eder, ; Eliana B. Souto,
| | - Piotr Eder
- Department of Gastroenterology, Dietetics, and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland
- *Correspondence: Aleksandra Zielińska, ; Piotr Eder, ; Eliana B. Souto,
| | - Jacek Karczewski
- Department of Environmental Medicine/Department of Gastroenterology, Human Nutrition and Internal Medicine, Poznan University of Medical Sciences, Poznan, Poland
| | - Marlena Szalata
- Department of Biochemistry and Biotechnology, Poznań University of Life Sciences, Poznań, Poland
| | - Szymon Hryhorowicz
- Institute of Human Genetics, Polish Academy of Sciences Poznan, Poznan, Poland
| | - Karolina Wielgus
- Department of Pediatric Gastroenterology and Metabolic Diseases, Poznan University of Medical Sciences, Poznan, Poland
| | - Milena Szalata
- Department of Biotechnology, Institute of Natural Fibres and Medicinal Plants National Research Institute, Poznan, Poland
| | - Agnieszka Dobrowolska
- Department of Gastroenterology, Dietetics, and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland
| | - Atanas G. Atanasov
- Institute of Genetics and Animal Biotechnology, Magdalenka, Poland
- Institute of Neurobiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
- Department of Pharmacognosy, University of Vienna, Vienna, Austria
| | - Ryszard Słomski
- Institute of Human Genetics, Polish Academy of Sciences Poznan, Poznan, Poland
| | - Eliana B. Souto
- UCIBIO – Applied Molecular Biosciences Unit, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto, Portugal
- *Correspondence: Aleksandra Zielińska, ; Piotr Eder, ; Eliana B. Souto,
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Li S, Yang P, Ding X, Zhang H, Ding Y, Tan Q. Puerarin improves diabetic wound healing via regulation of macrophage M2 polarization phenotype. BURNS & TRAUMA 2022; 10:tkac046. [PMID: 36568527 PMCID: PMC9773819 DOI: 10.1093/burnst/tkac046] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/28/2022] [Accepted: 09/28/2022] [Indexed: 12/24/2022]
Abstract
Background Skin wound healing depends on the progress of different but overlapping stages of healing, including hemostasis, inflammatory, proliferative and remodeling. Failure of these stages to occur in a timely and gradual manner may result in non-healing pathological wounds. Macrophages and neutrophils have been shown to play an essential role in the inflammatory responses of wound tissue, and their active plasticity allows them to modulate tissue damage and repair functions. The ability of macrophages and neutrophils to regulate the occurrence and resolution of inflammatory processes is essential for the treatment of pathological wound healing. Methods Mice were categorized into negative control, streptozotocin, streptozotocin + puerarin and puerarin groups. The traditional Chinese medicine extract puerarin was selected to treat different groups of mice with a full-thickness skin defect wound. Cells of the RAW264.7 cell line were stimulated under different puerarin conditions. Then, real time quantitative polymerase chain reaction (RT-qPCR), western blot, immunofluorescence and other assays were carried out to explore the effect of puerarin on wound healing and its molecular mechanism. Results Animal experiments found that the wound healing of diabetic mice treated with puerarin was significantly accelerated, and histological analysis found that puerarin treatment markedly decreased the infiltration of macrophages and neutrophils in wound tissue. Through western blot, RT-qPCR and immunofluorescence experiments, it was observed that puerarin treatment remarkably inhibited nuclear factor kinase B (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathways, downregulated the expression of inflammatory cytokines and induced the M2 polarization of macrophages. At the cellular level, we also observed that puerarin improved M2 macrophage polarization and inhibited inflammatory pathway activation in a high-glucose culture. Conclusion Puerarin has a significant therapeutic effect on wound healing in diabetic mice. The therapeutic effect is achieved by regulating macrophage polarization through suppressing NF-κB and MAPK signaling cascades.
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Affiliation(s)
| | | | - Xiaofeng Ding
- Department of Burns and Plastic Surgery, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, NO. 321, Zhongshan Road, Nanjing, Jiangsu 210008, China
| | - Hao Zhang
- Department of Burns and Plastic Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, NO. 321, Zhongshan Road, Nanjing, Jiangsu, China
| | - Youjun Ding
- Department of Burns and Plastic Surgery, Nanjing Drum Tower Hospital Clinical College of Jiangsu University, NO. 321, Zhongshan Road, Nanjing, Jiangsu 210008, China
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Functional differences between primary monocyte-derived and THP-1 macrophages and their response to LCPUFAs. PHARMANUTRITION 2022. [DOI: 10.1016/j.phanu.2022.100322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Hu K, Xu Y, Li X, Du P, Lu Y, Lyu G. The Nocardia Rubra Cell Wall Skeleton Regulates Macrophages and Promotes Wound Healing. Curr Issues Mol Biol 2022; 44:5995-6005. [PMID: 36547069 PMCID: PMC9777221 DOI: 10.3390/cimb44120408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/05/2022] [Accepted: 11/23/2022] [Indexed: 12/02/2022] Open
Abstract
The Nocardia rubra cell wall skeleton (Nr-CWS) is an immunomodulator used clinically for its ability to modulate the body's immune function. Macrophages are an important hub of the immune response during wound healing. In this study, we hypothesized that a Nr-CWS could modulate macrophage physiological activities, polarize macrophages toward M2, and promote wound healing. Through in vivo experiments, we made two full-thickness excisional wounds on the backs of mice; one was treated with a Nr-CWS, and the other was treated with saline. We photographed and recorded the wound change every other day. We observed the histopathological examination and collagen deposition using H&E and Masson staining, then analyzed the macrophage surface markers using immunofluorescence. Through in vitro experiments, we studied the effect of the Nr-CWS on RAW264.7 cells through CCK8, transwell, flow cytometry, western blot, immunofluorescence, and ELISA. We found that the Nr-CWS can enhance the proliferation, migration, and phagocytosis of macrophages. In addition, it can promote the recruitment of macrophages on the wound surface, polarize macrophages to M2, and increase the expression of pro-healing cytokines. Ultimately, the Nr-CWS accelerated wound healing.
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Affiliation(s)
- Kai Hu
- Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yan Xu
- Affiliated Hospital of Jiangnan University, Wuxi 214041, China
| | - Xiaoxiao Li
- Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Pan Du
- Jiangnan University, Wuxi 214122, China
| | - Yichi Lu
- Jiangnan University, Wuxi 214122, China
| | - Guozhong Lyu
- Nanjing University of Chinese Medicine, Nanjing 210023, China
- Affiliated Hospital of Jiangnan University, Wuxi 214041, China
- Correspondence: or
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The Discovery and Development of Natural-Based Biomaterials with Demonstrated Wound Healing Properties: A Reliable Approach in Clinical Trials. Biomedicines 2022; 10:biomedicines10092226. [PMID: 36140332 PMCID: PMC9496351 DOI: 10.3390/biomedicines10092226] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/04/2022] [Accepted: 09/06/2022] [Indexed: 11/17/2022] Open
Abstract
Current research across the globe still focuses strongly on naturally derived biomaterials in various fields, particularly wound care. There is a need for more effective therapies that will address the physiological deficiencies underlying chronic wound treatment. The use of moist bioactive scaffolds has significantly increased healing rates compared to local and traditional treatments. However, failure to heal or prolonging the wound healing process results in increased financial and social stress imposed on health institutions, caregivers, patients, and their families. The urgent need to identify practical, safe, and cost-effective wound healing scaffolding from natural-based biomaterials that can be introduced into clinical practice is unequivocal. Naturally derived products have long been used in wound healing; however, clinical trial evaluations of these therapies are still in their infancy. Additionally, further well-designed clinical trials are necessary to confirm the efficacy and safety of natural-based biomaterials in treating wounds. Thus, the focus of this review is to describe the current insight, the latest discoveries in selected natural-based wound healing implant products, the possible action mechanisms, and an approach to clinical studies. We explore several tested products undergoing clinical trials as a novel approach to counteract the debilitating effects of impaired wound healing.
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Deng M, Wu Y, Ren Y, Song H, Zheng L, Lin G, Wen X, Tao Y, Kong Q, Wang Y. Clickable and smart drug delivery vehicles accelerate the healing of infected diabetic wounds. J Control Release 2022; 350:613-629. [PMID: 36058354 DOI: 10.1016/j.jconrel.2022.08.053] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/03/2022] [Accepted: 08/26/2022] [Indexed: 11/15/2022]
Abstract
In this study, an adipic acid dihydrazide (ADH)/ tannic acid (TA)-grafted hyaluronic acid (HA)-based multifunctional hydrogel was synthesized through a spontaneous amino-yne click reaction and used to promote the improved healing of infected diabetic wounds. This hydrogel exhibited a range of beneficial properties such as tunable gelation time, adjustable mechanical properties, pH-sensitive response characteristics, excellent injectability, the ability to readily adhere to tissue, and ultra-intimate contact capabilities. Following the encapsulation of ultrasmall Ag nanoclusters (AgNCs) and deferoxamine loaded polydopamine/ hollow mesoporous manganese dioxide (PHMD, PDA/H-mMnO2@DFO) nanoparticles, the prepared hydrogel presented with robust antibacterial, anti-inflammatory, and pro-angiogenic properties and a desirable smart drug release profile. In this fabricated platform, PHMD was able to effectively alleviate localized oxidative stress and prolonged oxygen deprivation via the decomposition of endogenous H2O2 to produce O2. Further in vivo assays revealed that this hydrogel was capable of facilitating the healing of infected wounds through the sequential engagement of antibacterial, anti-inflammatory, and pro-angiogenic activities. Together, this synthesized clickable environmentally-responsive hydrogel offers great promise as a tool that can be applied to aid in the healing of chronically infected diabetic wounds and other inflammatory conditions.
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Affiliation(s)
- Mingyan Deng
- WestChina-California Research Center for Predictive Intervention Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ye Wu
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yan Ren
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Haoyang Song
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Li Zheng
- WestChina-California Research Center for Predictive Intervention Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Guangzhi Lin
- WestChina-California Research Center for Predictive Intervention Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xin Wen
- WestChina-California Research Center for Predictive Intervention Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yiran Tao
- WestChina-California Research Center for Predictive Intervention Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qingquan Kong
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yu Wang
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
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Dannhauser D, Rossi D, De Gregorio V, Netti PA, Terrazzano G, Causa F. Single cell classification of macrophage subtypes by label-free cell signatures and machine learning. ROYAL SOCIETY OPEN SCIENCE 2022; 9:220270. [PMID: 36177192 PMCID: PMC9515641 DOI: 10.1098/rsos.220270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
Pro-inflammatory (M1) and anti-inflammatory (M2) macrophage phenotypes play a fundamental role in the immune response. The interplay and consequently the classification between these two functional subtypes is significant for many therapeutic applications. Albeit, a fast classification of macrophage phenotypes is challenging. For instance, image-based classification systems need cell staining and coloration, which is usually time- and cost-consuming, such as multiple cell surface markers, transcription factors and cytokine profiles are needed. A simple alternative would be to identify such cell types by using single-cell, label-free and high throughput light scattering pattern analyses combined with a straightforward machine learning-based classification. Here, we compared different machine learning algorithms to classify distinct macrophage phenotypes based on their optical signature obtained from an ad hoc developed wide-angle static light scattering apparatus. As the main result, we were able to identify unpolarized macrophages from M1- and M2-polarized phenotypes and distinguished them from naive monocytes with an average accuracy above 85%. Therefore, we suggest that optical single-cell signatures within a lab-on-a-chip approach along with machine learning could be used as a fast, affordable, non-invasive macrophage phenotyping tool to supersede resource-intensive cell labelling.
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Affiliation(s)
- David Dannhauser
- Interdisciplinary Research Centre on Biomaterials (CRIB) and Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli ‘Federico II’, Piazzale Tecchio 80, Naples 80125, Italy
| | - Domenico Rossi
- Center for Advanced Biomaterials for Healthcare@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, Naples 80125, Italy
| | - Vincenza De Gregorio
- Interdisciplinary Research Centre on Biomaterials (CRIB) and Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli ‘Federico II’, Piazzale Tecchio 80, Naples 80125, Italy
- Dipartimento di Biologia, Università degli Studi di Napoli ‘Federico II’, Complesso Universitario di Monte S Angelo, Naples, Italy
| | - Paolo Antonio Netti
- Interdisciplinary Research Centre on Biomaterials (CRIB) and Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli ‘Federico II’, Piazzale Tecchio 80, Naples 80125, Italy
- Center for Advanced Biomaterials for Healthcare@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, Naples 80125, Italy
| | - Giuseppe Terrazzano
- Dipartimento di Scienze (DiS), Università della Basilicata, Via dell'Ateneo Lucano 10, Potenza 85100, Italy
| | - Filippo Causa
- Interdisciplinary Research Centre on Biomaterials (CRIB) and Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli ‘Federico II’, Piazzale Tecchio 80, Naples 80125, Italy
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Rahmannia M, Amini A, Chien S, Bayat M. Impact of photobiomodulation on macrophages and their polarization during diabetic wound healing: a systematic review. Lasers Med Sci 2022; 37:2805-2815. [PMID: 35635648 DOI: 10.1007/s10103-022-03581-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/24/2022] [Indexed: 02/01/2023]
Abstract
This review aims to providing essential information and the current knowledge about the potential role of macrophages, especially their M2 subtypes in different diabetic wounds both in clinical and pre-clinical models under the influence of photobiomodulation (PBM). The long-term goal is to advance the macrophage-based therapies to accelerate healing of diabetic foot ulcers. We reviewed all databases provided by PubMed, Google Scholar, Scopus, Web of Science, and Cochrane precisely from their dates of inception to 25/10/2021. The keywords of Diabetes mellitus diseases, wound healing, macrophage, and photobiomodulation or low-level laser therapy were used in this systematic review.A total of 438 articles were initially identified in pubmed.ncbi.nlm.nih.gov (15 articles), Google scholar (398 articles), Scopus (18 articles), and Web of Science (7 articles). Four hundred sixteen articles that remained after duplicate studies (22 articles) were excluded. After screening abstracts and full texts, 14 articles were included in our analysis. Among them, 4 articles were about the effect of PBM on macrophages in type 2 diabetes and also found 10 articles about the impact of PBM on macrophages in type 1 diabetes. The obtained data from most of the reviewed studies affirmed that the PBM alone or combined with other agents (e.g., stem cells) could moderate the inflammatory response and accelerate the wound healing process in pre-clinical diabetic wound models. However, only very few studies conducted the detailed functions of polarized macrophages and M2 subtypes in wound healing of diabetic models under the influence of PBM. Further pre-clinical and clinical investigations are still needed to investigate the role of M2 macrophages, especially its M2c subtype, in the healing processes of diabetic foot ulcers in clinical and preclinical settings.
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Affiliation(s)
- Maryam Rahmannia
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abdollah Amini
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sufan Chien
- Price Institute of Surgical Research, University of Louisville; and Noveratech LLC of Louisville, Louisville, KY, USA.
| | - Mohammad Bayat
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran. .,Price Institute of Surgical Research, University of Louisville; and Noveratech LLC of Louisville, Louisville, KY, USA.
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Landau Z, Whitacre KL, Leewood C, Hawkins J, Wachuku CD. Utilization of a topical autologous blood clot for treatment of pressure ulcers. Int Wound J 2022; 20:806-812. [PMID: 36054532 PMCID: PMC9927894 DOI: 10.1111/iwj.13927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/22/2022] [Accepted: 07/25/2022] [Indexed: 11/28/2022] Open
Abstract
Management and treatment of pressure ulcers (PUs) are met with great difficulty due to various factors that cause vulnerability of the soft tissue such as location, limited mobility, increased friction and shearing forces, as well as other comorbidities that may delay or halt wound healing. The topical autologous blood clot therapy (TABCT) is a point-of-care treatment used as a blood clot to assist in recreating and repairing the extracellular matrix (ECM). The mechanism of action consists of reconstruction of the ECM by incorporating into the ulcer, providing protection from further external destruction, while assisting in advancement through the wound healing phases via interaction of necessary growth factors, mediators, and chemokines. This study aims to assess the efficacy of the TABCT in the treatment of PUs in comparison to standard of care (SOC) treatment. Twenty-four patients, 18 years or older, with PUs ranging from stage 1 to 4, were included in this study. TABCT was created by using the patient's own peripheral blood in a point of care setting. Efficacy in percent area reduction (PAR) on weeks 4 and 12 with TABCT over SOC was assessed. Treatment using TABCT in PUs resulted in 77.9% of the patients achieving a 50% PAR on week 4. The mean PAR on week 12 was 96.23% with 45% of the wounds treated with TABCT achieving complete wound closure. TABCT exhibited efficacy in PAR of PUs. In addition, TABCT use prompted granulation tissue formation over vital structures, such as bone, which is often present in later stage PUs. The potential of bringing an affordable, cost-effective, advanced biologic bedside treatment that is efficacious in resolution of these complex wounds has the potential to drastically reduce the burden of treatment on the health system.
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Affiliation(s)
- Zvi Landau
- Medical Nursing and Rehibilitation CenterBeit HadarAshdodIsrael
| | | | - Charles Leewood
- Center for Hyperbarics and Wound CareCandler HospitalSavannahGeorgiaUSA
| | - Jessie Hawkins
- Clinical Research DepartmentFranklin Health Research CenterFranklinTennesseeUSA
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Zhang R, Zhong B, He J, Yang X, He M, Zeng W, Pan J, Fang Z, Jia J, Liu H. Single-cell transcriptomes identifies characteristic features of mouse macrophages in liver Mallory-Denk bodies formation. Exp Mol Pathol 2022; 127:104811. [PMID: 35850229 DOI: 10.1016/j.yexmp.2022.104811] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 06/09/2022] [Accepted: 07/12/2022] [Indexed: 11/16/2022]
Abstract
Mallory-Denk bodies (MDBs) consist of intracellular aggregates of misfolded proteins in ballooned hepatocytes and serve as important markers of progression in certain liver diseases. Resident hepatic macrophage-mediated inflammation influences the development of chronic liver diseases and cancer. Here, the first systematic study of macrophages heterogeneity in mice was conducted to illustrate the pathogenesis of MDB formation using single-nucleus RNA sequencing (snRNA-seq). Furthermore, we provided transcriptional profiles of macrophages obtained from the fractionation of mouse liver tissues following chronic injury. We equally identified seven discrete macrophage subpopulations, each involved in specific cellular activated pathways such as basal metabolism, immune regulation, angiogenesis, and cell cycle regulation. Among these, a specific macrophage cluster (Cluster4), a subpopulation specifically expressing genes that regulate cell division and the cell cycle, was identified. Interestingly, we found that CCR2 was significantly induced in Cluster2, thereby inducing monocytes to migrate to macrophages to promote MDB pathogenesis. Thus, our study is the first to demonstrate the heterogeneity of macrophages associated with liver MDB formation in mice through single-cell resolution. This serves as the basis for further insights into the pathogenesis of liver MDB formation and molecular mechanisms of chronic liver disease progression.
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Affiliation(s)
- Rong Zhang
- School of Basic Medical Sciences, Guangzhou Medical University, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Guangzhou, China; Clinical Laboratory, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - Bei Zhong
- School of Basic Medical Sciences, Guangzhou Medical University, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Guangzhou, China
| | - Jiashan He
- School of Basic Medical Sciences, Guangzhou Medical University, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Guangzhou, China
| | - Xinyu Yang
- School of Basic Medical Sciences, Guangzhou Medical University, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Guangzhou, China
| | - Menghua He
- School of Basic Medical Sciences, Guangzhou Medical University, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Guangzhou, China
| | - Wuyi Zeng
- School of Basic Medical Sciences, Guangzhou Medical University, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Guangzhou, China
| | - Jiayi Pan
- School of Basic Medical Sciences, Guangzhou Medical University, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Guangzhou, China
| | - Zixuan Fang
- School of Basic Medical Sciences, Guangzhou Medical University, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Guangzhou, China
| | - Jiangtao Jia
- School of Basic Medical Sciences, Guangzhou Medical University, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Guangzhou, China
| | - Hui Liu
- School of Basic Medical Sciences, Guangzhou Medical University, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Guangzhou, China; The State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China.
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Wang F, Ma J, Wang J, Chen M, Xia H, Yao S, Zhang D. SIRT1 ameliorated septic associated-lung injury and macrophages apoptosis via inhibiting endoplasmic reticulum stress. Cell Signal 2022; 97:110398. [PMID: 35811055 DOI: 10.1016/j.cellsig.2022.110398] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/28/2022] [Accepted: 07/04/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND The inappropriate apoptosis of macrophages plays an important role in the pathogenesis of sepsis-induced acute lung injury, however, the detailed regulatory mechanisms remain largely unknown. As an endogenous apoptosis pathway, endoplasmic reticulum (ER) stress plays an important role in cell damage in patients with sepsis. Clarifying the ER stress response and its effect on macrophages during the development of sepsis is helpful to explore new strategies for the prevention and treatment of ALI in sepsis. METHODS The mouse model and the RAW264.7 inflammation model were stimulated with LPS to establish in vivo and in vitro. We explored the effects of different expression levels of silent information regulator factor 2-related enzyme 1 (SIRT1) on the ER stress response and apoptosis of macrophages in the sepsis-related injury model. RESULTS Our studies found that the increased expression of SIRT1 can significantly improve sepsis-related lung injury and relieve lung inflammation. SRT1720, a SIRT1 activator, can significantly inhibit the ER stress response of lung tissue and macrophages, inhibit the expression of pro-apoptotic proteins, promote the expression of anti-apoptotic proteins, and reduce macrophages of apoptosis. While the EX527, an inhibitor of SIRT1, had the opposite effect. CONCLUSION SIRT1 can significantly improve sepsis-associated lung injury and LPS-induced macrophage apoptosis. This protective effect is closely related to its inhibition of the ER stress response via the PERK/eIF2-α/ATF4/CHOP pathway.
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Affiliation(s)
- Fuquan Wang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jiamin Ma
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jingxu Wang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ming Chen
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Haifa Xia
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shanglong Yao
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Dingyu Zhang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Wuhan Jinyintan Hospital, Wuhan 430023, China.
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Xue Y, Reddy SK, Garza LA. Toward Understanding Wound Immunology for High-Fidelity Skin Regeneration. Cold Spring Harb Perspect Biol 2022; 14:a041241. [PMID: 35667792 PMCID: PMC9248820 DOI: 10.1101/cshperspect.a041241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Effective tissue repair is vital for the survival of organisms. Yet, how the immune system coordinates with tissue stem cells (SCs) to effect postnatal tissue restoration remains elusive. This review presents current knowledge surrounding wound-induced SC and immune signaling that favors tissue repair, including wound healing and regeneration. We discuss factors that affect regenerative capacities among organisms and the dynamics of local immune cells and SCs during reepithelialization. We also present recent insights into how immune niches communicate with SCs or other body systems to restore the epithelial architecture. Additionally, we summarize our findings on functional wound regeneration, specifically how alarmin (double-stranded RNA [dsRNA])-activated Toll-like receptor signaling and host-microbe interaction-related immune pathways alter the regenerative property of skin SCs. Last, we touch on mechanisms by which known immunologic cellular and molecular signaling might boost the skin's regenerative property. Overall, this review will provide insights into how therapeutically modulating immune signaling could enhance postnatal tissue regeneration.
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Affiliation(s)
| | - Sashank K Reddy
- Department of Plastic and Reconstructive Surgery
- Department of Biomedical Engineering
- Institute for NanoBioTechnology
| | - Luis A Garza
- Department of Dermatology
- Department of Cell Biology
- Department of Oncology, Johns Hopkins University, Baltimore, Maryland 21231, USA
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Nikovics K, Durand M, Castellarin C, Burger J, Sicherre E, Collombet JM, Oger M, Holy X, Favier AL. Macrophages Characterization in an Injured Bone Tissue. Biomedicines 2022; 10:biomedicines10061385. [PMID: 35740407 PMCID: PMC9219779 DOI: 10.3390/biomedicines10061385] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 06/08/2022] [Indexed: 11/16/2022] Open
Abstract
Biomaterial use is a promising approach to facilitate wound healing of the bone tissue. Biomaterials induce the formation of membrane capsules and the recruitment of different types of macrophages. Macrophages are immune cells that produce diverse combinations of cytokines playing an important role in bone healing and regeneration, but the exact mechanism remains to be studied. Our work aimed to identify in vivo macrophages in the Masquelet induced membrane in a rat model. Most of the macrophages in the damaged area were M2-like, with smaller numbers of M1-like macrophages. In addition, high expression of IL-1β and IL-6 cytokines were detected in the membrane region by RT-qPCR. Using an innovative combination of two hybridization techniques (in situ hybridization and in situ hybridization chain reaction (in situ HCR)), M2b-like macrophages were identified for the first time in cryosections of non-decalcified bone. Our work has also demonstrated that microspectroscopical analysis is essential for macrophage characterization, as it allows the discrimination of fluorescence and autofluorescence. Finally, this work has revealed the limitations of immunolabelling and the potential of in situ HCR to provide valuable information for in vivo characterization of macrophages.
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Affiliation(s)
- Krisztina Nikovics
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (C.C.); (E.S.); (M.O.); (A.-L.F.)
- Correspondence: or ; Tel.: +33-(0)-1-78-65-13-331
| | - Marjorie Durand
- Osteo-Articulary Biotherapy Unit, Department of Medical and Surgical Assistance to the Armed Forces, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (M.D.); (J.-M.C.)
| | - Cédric Castellarin
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (C.C.); (E.S.); (M.O.); (A.-L.F.)
| | - Julien Burger
- Microbiology and Infectious Diseases Department, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France;
| | - Emma Sicherre
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (C.C.); (E.S.); (M.O.); (A.-L.F.)
| | - Jean-Marc Collombet
- Osteo-Articulary Biotherapy Unit, Department of Medical and Surgical Assistance to the Armed Forces, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (M.D.); (J.-M.C.)
| | - Myriam Oger
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (C.C.); (E.S.); (M.O.); (A.-L.F.)
| | - Xavier Holy
- Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France;
| | - Anne-Laure Favier
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (C.C.); (E.S.); (M.O.); (A.-L.F.)
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Collantes M, Vairo C, Erhard Á, Navas C, Villullas S, Ecay M, Pareja F, Quincoces G, Gainza G, Peñuelas I. Preclinical safety of negatively charged microspheres (NCMs): optimization of radiolabeling for in vivo and ex vivo biodistribution studies after topical administration on full-thickness wounds in a rat model. Eur J Pharm Biopharm 2022; 177:61-67. [PMID: 35697288 DOI: 10.1016/j.ejpb.2022.06.001] [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: 09/08/2021] [Revised: 06/01/2022] [Accepted: 06/04/2022] [Indexed: 11/15/2022]
Abstract
Negatively charged microspheres (NCMs) are postulated as a new form of treatment for chronic wounds. Despite the efficacy shown at clinical level, more studies are required to demonstrate their safety and local effect. The objective of the work was to confirm the lack of NCM systemic absorption performing a biodistribution study of the NCMs in an open wound rat animal model. To this end, radiolabeling of NCMs with technetium-99m was optimized and biodistribution studies were performed by in vivo SPEC/CT imaging and ex vivo counting during 24 h after topical administration. The studies were performed on animals treated with a single or repeated dose to study the effect of macrophages during a prolonged treatment. NCM radiolabeling was achieved in a simple, efficient and stable manner with high yield. SPECT/CT images showed that almost all NCMs (about 85 %) remained on the wound for 24 h either after single or multiple administrations. Ex vivo biodistribution studies confirmed that there was no accumulation of NCMs in any organ or tissue except in the wound area, suggesting a lack of absorption. In conclusion, NCMs can be considered safe as local wound treatment since they remain at the administration area.
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Affiliation(s)
- María Collantes
- Translational Molecular Imaging Unit (UNIMTRA), Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain; RADIOMIN Research Group, Radiopharmacy Unit, Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain; Nuclear Medicine Department, Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain; Instituto de Investigación Sanitaria de Navarra (IdiSNA), Spain
| | - Claudia Vairo
- BioKeralty Research Institute AIE, Albert Einstein, 25-E3, 01510, Miñano, Spain
| | - Álvaro Erhard
- Translational Molecular Imaging Unit (UNIMTRA), Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain; RADIOMIN Research Group, Radiopharmacy Unit, Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain; Nuclear Medicine Department, Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain
| | - Cristina Navas
- Translational Molecular Imaging Unit (UNIMTRA), Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain
| | - Silvia Villullas
- BioKeralty Research Institute AIE, Albert Einstein, 25-E3, 01510, Miñano, Spain
| | - Margarita Ecay
- Translational Molecular Imaging Unit (UNIMTRA), Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain; RADIOMIN Research Group, Radiopharmacy Unit, Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain; Nuclear Medicine Department, Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain
| | - Félix Pareja
- Nuclear Medicine Department, Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain
| | - Gemma Quincoces
- RADIOMIN Research Group, Radiopharmacy Unit, Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain; Nuclear Medicine Department, Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain; Instituto de Investigación Sanitaria de Navarra (IdiSNA), Spain
| | - Garazi Gainza
- BioKeralty Research Institute AIE, Albert Einstein, 25-E3, 01510, Miñano, Spain.
| | - Iván Peñuelas
- Translational Molecular Imaging Unit (UNIMTRA), Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain; RADIOMIN Research Group, Radiopharmacy Unit, Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain; Nuclear Medicine Department, Clínica Universidad de Navarra, Avenida Pío XII, 31080, Pamplona, Spain; Instituto de Investigación Sanitaria de Navarra (IdiSNA), Spain
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50
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Novaes R, Costa TFR, Goundry AL, Verçoza BRF, Rodrigues JCF, Godinho JLP, Reis FCG, Morrot A, Lima APCA. Bone marrow granulocytes downregulate IL-1β and TNF production and the microbicidal activity of inflammatory macrophages. Biochem Cell Biol 2022; 100:246-265. [PMID: 35443139 DOI: 10.1139/bcb-2021-0460] [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] [Indexed: 11/22/2022] Open
Abstract
Macrophages play critical roles in inflammation and defense against pathogens, as well as in the return to tissue homeostasis. Macrophage subpopulations displaying antagonistic phenotypes are generally classified as proinflammatory M1, implicated in antipathogen and antitumoral activities, or as anti-inflammatory M2, associated with tissue repair. Granulocytic and monocytic myeloid-derived suppressor cells recruited from the bone marrow to tissues and phagocytosis of apoptotic neutrophils can attenuate macrophage microbicidal activity. Here, we showed that bone marrow neutrophils, but not thioglycollate-recruited neutrophils, directly suppress the responses of macrophages that were previously committed to an inflammatory phenotype. Cocultures of inflammatory macrophages with bone marrow CD11b+Ly6Ghi granulocytes led to reduced release of IL-1β, TNF-α, and IL-6 by macrophages after lipopolysaccharide stimulation. The suppressive activity was unrelated to granulocyte apoptosis or to secreted factors and required cell-to-cell contact. The suppressive effect was paralleled by reduction in the nuclear levels of the NF-κB p65 subunit, but not of the p50 subunit. Furthermore, bone marrow granulocytes decreased the phagocytic activity of macrophages and their capacity to kill intracellular Escherichia coli. Taken together, these results show that bone marrow granulocytes can function as suppressors of the proinflammatory activity and microbial-killing responses of macrophages.
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Affiliation(s)
- Renata Novaes
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-971, Brazil
- Departamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-971, Brazil
| | - Tatiana F R Costa
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-971, Brazil
| | - Amy L Goundry
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-971, Brazil
| | - Brunno R F Verçoza
- Núcleo Multidisciplinar de Pesquisa em Biologia (NUMPEX-Bio), Universidade Federal do Rio de Janeiro, Campus Duque de Caxias Professor Geraldo Cidade, Duque de Caxias, Brazil
| | - Juliany C F Rodrigues
- Núcleo Multidisciplinar de Pesquisa em Biologia (NUMPEX-Bio), Universidade Federal do Rio de Janeiro, Campus Duque de Caxias Professor Geraldo Cidade, Duque de Caxias, Brazil
| | - Joseane Lima P Godinho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-971, Brazil
| | - Flavia C G Reis
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-971, Brazil
| | - Alexandre Morrot
- Faculdade de Medicina, Centro de Pesquisa em Tuberculose, Universidade Federal do Rio de Janeiro and Instituto Oswaldo Cruz, FIOCRUZ, Avenida Brasil 4365, Pavilhão 26, Manguinhos, Rio de Janeiro, Brazil
| | - Ana Paula C A Lima
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-971, Brazil
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