1
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Kuan CH, Chang L, Ho CY, Tsai CH, Liu YC, Huang WY, Wang YN, Wang WH, Wang TW. Immunomodulatory hydrogel orchestrates pro-regenerative response of macrophages and angiogenesis for chronic wound healing. Biomaterials 2024; 314:122848. [PMID: 39342917 DOI: 10.1016/j.biomaterials.2024.122848] [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: 06/15/2024] [Revised: 08/22/2024] [Accepted: 09/22/2024] [Indexed: 10/01/2024]
Abstract
Chronic wound healing often encounters challenges characterized by prolonged inflammation and impaired angiogenesis. While the immune response plays a pivotal role in orchestrating the intricate process of wound healing, excessive inflammation can hinder tissue repair. In this study, a bilayer alginate hydrogel system encapsulating polyelectrolyte complex nanoparticles (PCNs) loaded with anti-inflammatory cytokines and angiogenic growth factors is developed to address the challenges of chronic wound healing. The alginate hydrogel is designed using two distinct crosslinking methods to achieve differential degradation, thereby enabling precise spatial and temporal controlled release of PCNs. Initially, interleukin-10 (IL-10) is released to mitigate inflammation, while unsaturated PCNs bind and remove accumulated pro-inflammatory cytokines at the wound site. Subsequently, angiogenic growth factors, including vascular endothelial growth factor and platelet-derived growth factor, are released to promote vascularization and vessel maturation. Our results demonstrate that the bilayer hydrogel exhibits distinct degradation kinetics between the two layers, facilitating the staged release of multiple signaling molecules. In vitro experiments reveal that IL-10 can activate the Jak1/STAT3 pathway, thereby suppressing pro-inflammatory cytokines and chemokines while down-regulating inflammation-related genes. In vivo studies demonstrate that application of the hydrogel in chronic wounds using diabetic murine model promotes healing by positively modulating multiple integral reparative mechanisms. These include reducing inflammation, promoting macrophage polarization towards a pro-regenerative phenotype, enhancing keratinocyte migration, stimulating angiogenesis, and expediting wound closure. In conclusion, our hydrogel system effectively mitigates inflammatory responses and provides essential physiological cues by inducing a synergistic angiogenic effect, thus offering a promising approach for the treatment of chronic wounds.
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Affiliation(s)
- Chen-Hsiang Kuan
- Division of Plastic Surgery, Department of Surgery, National Taiwan University Hospital, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taiwan; Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taiwan.
| | - Ling Chang
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Chia-Yu Ho
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan; Department of Bioengineering, Rice University, Houston, USA
| | - Chia-Hsuan Tsai
- Division of Plastic Surgery, Department of Surgery, Chang Gung Memorial Hospital, Keelung Branch, Taiwan
| | - Yu-Chung Liu
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan; Department of Biomedical Engineering, University of Michigan-Ann Arbor, Michigan, USA
| | - Wei-Yuan Huang
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Yi-Ning Wang
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Wei-Hung Wang
- Department of Biomedical Engineering, National Taiwan University, Taipei, Taiwan
| | - Tzu-Wei Wang
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan.
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2
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Clayton SM, Shafikhani SH, Soulika AM. Macrophage and Neutrophil Dysfunction in Diabetic Wounds. Adv Wound Care (New Rochelle) 2024; 13:463-484. [PMID: 38695109 DOI: 10.1089/wound.2023.0149] [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: 05/25/2024] Open
Abstract
Significance: The incidence of diabetes continues to rise throughout the world in an alarming rate. Diabetic patients often develop diabetic foot ulcers (DFUs), many of which do not heal. Non-healing DFUs are a major cause of hospitalization, amputation, and increased morbidity. Understanding the underlying mechanisms of impaired healing in DFU is crucial for its management. Recent Advances: This review focuses on the recent advancements on macrophages and neutrophils in diabetic wounds and DFUs. In particular, we discuss diabetes-induced dysregulations and dysfunctions of macrophages and neutrophils. Critical Issues: It is well established that diabetic wounds are characterized by stalled inflammation that results in impaired healing. Recent findings in the field suggest that dysregulation of macrophages and neutrophils plays a critical role in impaired healing in DFUs. The delineation of mechanisms that restore macrophage and neutrophil function in diabetic wound healing is the focus of intense investigation. Future Directions: The breadth of recently generated knowledge on the activity of macrophages and neutrophils in diabetic wound healing is impressive. Experimental models have delineated pathways that hold promise for the treatment of diabetic wounds and DFUs. These pathways may be useful targets for further clinical investigation.
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Affiliation(s)
- Shannon M Clayton
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, California, USA
- Department of Dermatology, School of Medicine, University of California Davis, Sacramento, California, USA
| | - Sasha H Shafikhani
- Department of Internal Medicine, Division of Hematology, Oncology and Cell Therapy, Rush University, Chicago, Illinois, USA
| | - Athena M Soulika
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, California, USA
- Department of Dermatology, School of Medicine, University of California Davis, Sacramento, California, USA
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3
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Hu W, Zhang X, Sheng H, Liu Z, Chen Y, Huang Y, He W, Luo G. The mutual regulation between γδ T cells and macrophages during wound healing. J Leukoc Biol 2024; 115:840-851. [PMID: 37493223 DOI: 10.1093/jleuko/qiad087] [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: 05/20/2023] [Revised: 07/08/2023] [Accepted: 07/20/2023] [Indexed: 07/27/2023] Open
Abstract
Macrophages are the main cells shaping the local microenvironment during wound healing. As the prime T cells in the skin, γδ T cells participate in regulating microenvironment construction, determining their mutual regulation helps to understand the mechanisms of wound healing, and explore innovative therapeutic options for wound repair. This review introduced their respective role in wound healing firstly, and then summarized the regulatory effect of γδ T cells on macrophages, including chemotaxis, polarization, apoptosis, and pyroptosis. Last, the retrograde regulation on γδ T cells by macrophages was also discussed. The main purpose is to excavate novel interventions for treating wound and provide new thought for further research.
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Affiliation(s)
- Wengang Hu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), ShaPingBa District, Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, ShaPingBa District, Chongqing 400038, China
| | - Xiaorong Zhang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), ShaPingBa District, Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, ShaPingBa District, Chongqing 400038, China
| | - Hao Sheng
- Urology Department, Second Affiliated Hospital, Third Military Medical University (Army Medical University), XinQiao District, Chongqing 400037, China
| | - Zhongyang Liu
- Department of Plastic Surgery, First Affiliated Hospital, Zhengzhou University, ErQi District, Zhengzhou, Henan 450000, China
| | - Yunxia Chen
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), ShaPingBa District, Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, ShaPingBa District, Chongqing 400038, China
| | - Yong Huang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), ShaPingBa District, Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, ShaPingBa District, Chongqing 400038, China
| | - Weifeng He
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), ShaPingBa District, Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, ShaPingBa District, Chongqing 400038, China
| | - Gaoxing Luo
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), ShaPingBa District, Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, ShaPingBa District, Chongqing 400038, China
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4
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Wang Y, Vizely K, Li CY, Shen K, Shakeri A, Khosravi R, Smith JR, Alteza EAII, Zhao Y, Radisic M. Biomaterials for immunomodulation in wound healing. Regen Biomater 2024; 11:rbae032. [PMID: 38779347 PMCID: PMC11110865 DOI: 10.1093/rb/rbae032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/18/2024] [Accepted: 03/20/2024] [Indexed: 05/25/2024] Open
Abstract
The substantial economic impact of non-healing wounds, scarring, and burns stemming from skin injuries is evident, resulting in a financial burden on both patients and the healthcare system. This review paper provides an overview of the skin's vital role in guarding against various environmental challenges as the body's largest protective organ and associated developments in biomaterials for wound healing. We first introduce the composition of skin tissue and the intricate processes of wound healing, with special attention to the crucial role of immunomodulation in both acute and chronic wounds. This highlights how the imbalance in the immune response, particularly in chronic wounds associated with underlying health conditions such as diabetes and immunosuppression, hinders normal healing stages. Then, this review distinguishes between traditional wound-healing strategies that create an optimal microenvironment and recent peptide-based biomaterials that modulate cellular processes and immune responses to facilitate wound closure. Additionally, we highlight the importance of considering the stages of wounds in the healing process. By integrating advanced materials engineering with an in-depth understanding of wound biology, this approach holds promise for reshaping the field of wound management and ultimately offering improved outcomes for patients with acute and chronic wounds.
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Affiliation(s)
- Ying Wang
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Toronto General Research Institute, University Health Network, Toronto, ON M5G 2C4 Canada
| | - Katrina Vizely
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada
| | - Chen Yu Li
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada
| | - Karen Shen
- Toronto General Research Institute, University Health Network, Toronto, ON M5G 2C4 Canada
| | - Amid Shakeri
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Toronto General Research Institute, University Health Network, Toronto, ON M5G 2C4 Canada
| | - Ramak Khosravi
- Toronto General Research Institute, University Health Network, Toronto, ON M5G 2C4 Canada
- Division of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA
| | - James Ryan Smith
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
| | | | - Yimu Zhao
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Toronto General Research Institute, University Health Network, Toronto, ON M5G 2C4 Canada
| | - Milica Radisic
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Toronto General Research Institute, University Health Network, Toronto, ON M5G 2C4 Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada
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5
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Wang W, Chen L, Zhang Y, Wang H, Dong D, Zhu J, Fu W, Liu T. Adipose-derived stem cells enriched with therapeutic mRNA TGF-β3 and IL-10 synergistically promote scar-less wound healing in preclinical models. Bioeng Transl Med 2024; 9:e10620. [PMID: 38435824 PMCID: PMC10905533 DOI: 10.1002/btm2.10620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 10/16/2023] [Accepted: 10/28/2023] [Indexed: 03/05/2024] Open
Abstract
Skin wound healing often leads to scar formation, presenting physical and psychological challenges for patients. Advancements in messenger RNA (mRNA) modifications offer a potential solution for pulsatile cytokine delivery to create a favorable wound-healing microenvironment, thereby preventing cutaneous fibrosis. This study aimed to investigate the effectiveness of human adipose-derived stem cells (hADSCs) enriched with N 1-methylpseudouridine (m1ψ) modified transforming growth factor-β3 (TGF-β3) and interleukin-10 (IL-10) mRNA in promoting scar-free healing in preclinical models. The results demonstrated that the modified mRNA (modRNA)-loaded hADSCs efficiently and temporarily secreted TGF-β3 and IL-10 proteins. In a dorsal injury model, hADSCs loaded with modRNA TGF-β3 and IL-10 exhibited multidimensional therapeutic effects, including improved collagen deposition, extracellular matrix organization, and neovascularization. In vitro experiments confirmed the ability of these cells to markedly inhibit the proliferation and migration of keloid fibroblasts, and reverse the myofibroblast phenotype. Finally, collagen degradation mediated by matrix metalloproteinase upregulation was observed in an ex vivo keloid explant culture model. In conclusion, the synergistic effects of the modRNA TGF-β3, IL-10, and hADSCs hold promise for establishing a scar-free wound-healing microenvironment, representing a robust foundation for the management of wounds in populations susceptible to scar formation.
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Affiliation(s)
- Wei Wang
- Department of Plastic and Aesthetic SurgeryHuadong Hospital, Shanghai Medical College, Fudan UniversityShanghaiChina
| | - Liang Chen
- Department of Plastic and Aesthetic SurgeryHuadong Hospital, Shanghai Medical College, Fudan UniversityShanghaiChina
| | - Yuxin Zhang
- Department of Plastic and Aesthetic SurgeryHuadong Hospital, Shanghai Medical College, Fudan UniversityShanghaiChina
| | - Heng Wang
- Department of Plastic and Aesthetic SurgeryHuadong Hospital, Shanghai Medical College, Fudan UniversityShanghaiChina
| | - Dong Dong
- Department of Plastic and Aesthetic SurgeryHuadong Hospital, Shanghai Medical College, Fudan UniversityShanghaiChina
| | - Jingjing Zhu
- Department of Plastic and Aesthetic SurgeryHuadong Hospital, Shanghai Medical College, Fudan UniversityShanghaiChina
| | - Wei Fu
- Institute of Pediatric Translational Medicine, Shanghai Institute of Pediatric Congenital Heart Disease, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong UniversityShanghaiChina
| | - Tianyi Liu
- Department of Plastic and Aesthetic SurgeryHuadong Hospital, Shanghai Medical College, Fudan UniversityShanghaiChina
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6
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Singh R, Gholipourmalekabadi M, Shafikhani SH. Animal models for type 1 and type 2 diabetes: advantages and limitations. Front Endocrinol (Lausanne) 2024; 15:1359685. [PMID: 38444587 PMCID: PMC10912558 DOI: 10.3389/fendo.2024.1359685] [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: 12/22/2023] [Accepted: 02/05/2024] [Indexed: 03/07/2024] Open
Abstract
Diabetes mellitus, commonly referred to as diabetes, is a group of metabolic disorders characterized by chronic elevation in blood glucose levels, resulting from inadequate insulin production, defective cellular response to extracellular insulin, and/or impaired glucose metabolism. The two main types that account for most diabetics are type 1 diabetes mellitus (T1DM) and type 2 diabetes mellitus (T2DM), each with their own pathophysiological features. T1D is an autoimmune condition where the body's immune system attacks and destroys the insulin-producing beta cells in the pancreas. This leads to lack of insulin, a vital hormone for regulating blood sugar levels and cellular glucose uptake. As a result, those with T1D depend on lifelong insulin therapy to control their blood glucose level. In contrast, T2DM is characterized by insulin resistance, where the body's cells do not respond effectively to insulin, coupled with a relative insulin deficiency. This form of diabetes is often associated with obesity, sedentary lifestyle, and/or genetic factors, and it is managed with lifestyle changes and oral medications. Animal models play a crucial role in diabetes research. However, given the distinct differences between T1DM and T2DM, it is imperative for researchers to employ specific animal models tailored to each condition for a better understanding of the impaired mechanisms underlying each condition, and for assessing the efficacy of new therapeutics. In this review, we discuss the distinct animal models used in type 1 and type 2 diabetes mellitus research and discuss their strengths and limitations.
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Affiliation(s)
- Raj Singh
- Department of Medicine, Division of Hematology, Oncology, & Cell Therapy, Rush University Medical Center, Chicago, IL, United States
| | - Mazaher Gholipourmalekabadi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Sasha H Shafikhani
- Department of Medicine, Division of Hematology, Oncology, & Cell Therapy, Rush University Medical Center, Chicago, IL, United States
- Cancer Center, Rush University Medical Center, Chicago, IL, United States
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7
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Roy R, Mahmud F, Zayas J, Kuzel TM, Reiser J, Shafikhani SH. Reduced Bioactive Microbial Products (Pathogen-Associated Molecular Patterns) Contribute to Dysregulated Immune Responses and Impaired Healing in Infected Wounds in Mice with Diabetes. J Invest Dermatol 2024; 144:387-397.e11. [PMID: 37619833 PMCID: PMC10840742 DOI: 10.1016/j.jid.2023.08.004] [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: 06/09/2022] [Revised: 07/11/2023] [Accepted: 08/01/2023] [Indexed: 08/26/2023]
Abstract
Diabetic chronic ulcers are plagued with persistent nonresolving inflammation. However, diabetic wound environment early after injury suffers from inadequate inflammatory responses due to reductions in proinflammatory cytokines levels. Diabetic neutrophils have known impairments in bactericidal functions. We hypothesized that reduced bacterial killing by diabetic neutrophils, due to their bactericidal functional impairments, results in reduced bioactive bacterial products, known as pathogen-associated molecular patterns, which in turn contribute to reduced signaling through toll-like receptors, leading to inadequate production of proinflammatory cytokines in infected diabetic wound early after injury. We tested our hypothesis in db/db type 2 obese diabetic mouse wound infection model with Pseudomonas aeruginosa. Our data indicate that despite substantially higher levels of infection, toll-like receptor 4-mediated signaling is reduced in diabetic wounds early after injury owing to reduced bioactive levels of lipopolysaccharide. We further demonstrate that topical treatment with lipopolysaccharide enhances toll-like receptor 4 signaling, increases proinflammatory cytokine production, restores leukocyte trafficking, reduces infection burden, and stimulates healing in diabetic wounds. We posit that lipopolysaccharide may be a viable therapeutic option for the treatment of diabetic foot ulcers if it is applied topically after the surgical debridement process, which is intended to reset chronic ulcers into acute fresh wounds.
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Affiliation(s)
- Ruchi Roy
- Division of Hematology, Oncology and Cell Therapy, Department of Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Foyez Mahmud
- Division of Hematology, Oncology and Cell Therapy, Department of Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Janet Zayas
- Division of Hematology, Oncology and Cell Therapy, Department of Medicine, Rush University Medical Center, Chicago, Illinois, USA; Department of Microbial Pathogens and Immunity, Rush University Medical Center, Chicago, Illinois, USA
| | - Timothy M Kuzel
- Division of Hematology, Oncology and Cell Therapy, Department of Medicine, Rush University Medical Center, Chicago, Illinois, USA; Cancer Center, Rush University Medical Center, Chicago, Illinois, USA
| | - Jochen Reiser
- Division of Hematology, Oncology and Cell Therapy, Department of Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Sasha H Shafikhani
- Division of Hematology, Oncology and Cell Therapy, Department of Medicine, Rush University Medical Center, Chicago, Illinois, USA; Department of Microbial Pathogens and Immunity, Rush University Medical Center, Chicago, Illinois, USA; Cancer Center, Rush University Medical Center, Chicago, Illinois, USA.
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8
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Liao CH, Lai TY, Lin YY, Liao YC, Lai GM, Chu TH, Wu SY, Tsai WL, Whang-Peng J, Liu F, Chiou TJ, Yao CJ. Inhibition of Polyinosinic-Polycytidylic Acid-Induced Acute Pulmonary Inflammation and NF-κB Activation in Mice by a Banana Plant Extract. Int J Med Sci 2024; 21:107-122. [PMID: 38164360 PMCID: PMC10750330 DOI: 10.7150/ijms.88748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/17/2023] [Indexed: 01/03/2024] Open
Abstract
NF-κB activation is pivotal for the excess inflammation causing the critical condition and mortality of respiratory viral infection patients. This study was aimed to evaluate the effect of a banana plant extract (BPE) on suppressing NF-κB activity and acute lung inflammatory responses in mice induced by a synthetic double-stranded RNA viral mimetic, polyinosinic-polycytidylic acid (poly (I:C)). The inflammatory responses were analyzed by immunohistochemistry and HE stains and ELISA. The NF-κB activities were detected by immunohistochemistry in vivo and immunofluorescence and Western blot in vitro. Results showed that BPE significantly decreased influx of immune cells (neutrophils, lymphocytes, and total WBC), markedly suppressed the elevation of pro-inflammatory cytokines and chemokines (IL-6, RANTES, IFN-γ, MCP-1, keratinocyte-derived chemokine, and IL-17), and restored the diminished anti-inflammatory IL-10 in the bronchoalveolar lavage fluid (BALF) of poly (I:C)-stimulated mice. Accordingly, HE staining revealed that BPE treatment alleviated poly (I:C)-induced inflammatory cell infiltration and histopathologic changes in mice lungs. Moreover, immunohistochemical analysis showed that BPE reduced the pulmonary IL-6, CD11b (macrophage marker), and nuclear NF-κB p65 staining intensities, whilst restored that of IL-10 in poly (I:C)-stimulated mice. In vitro, BPE antagonized poly(I:C)-induced elevation of IL-6, nitric oxide, reactive oxygen species, NF-κB p65 signaling, and transient activation of p38 MAPK in human lung epithelial-like A549 cells. Taken together, BPE ameliorated viral mimic poly(I:C)-induced acute pulmonary inflammation in mice, evidenced by reduced inflammatory cell infiltration and regulation of both pro- and anti-inflammatory cytokines. The mechanism of action might closely associate with NF-κB signaling inhibition.
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Affiliation(s)
- Chien-Huang Liao
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Tung-Yuan Lai
- Department of Chinese Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 97002, Taiwan
- Traditional Chinese Medicine Cancer Center, Hualien Tzu Chi Hospital, Hualien 97002, Taiwan
| | - Yu-Ying Lin
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Yi-Chun Liao
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan
| | - Gi-Ming Lai
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Tien-Hua Chu
- Chimera Bioscience Inc., No. 18 Siyuan St., Zhongzheng Dist., Taipei 10087, Taiwan
| | - Szu-Yao Wu
- Chimera Bioscience Inc., No. 18 Siyuan St., Zhongzheng Dist., Taipei 10087, Taiwan
| | - Wei-Lun Tsai
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Jacqueline Whang-Peng
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Frank Liu
- Department of Research and Development, Natural Well Technical Company, Guishan, Taoyuan 33377, Taiwan
| | - Tzeon-Jye Chiou
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Chih-Jung Yao
- Department of Medical Education and Research, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
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9
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Anderson KD, Beckmann C, Heermant S, Ko FC, Dulion B, Tarhoni I, Borgia JA, Virdi AS, Wimmer MA, Sumner DR, Ross RD. Zucker Diabetic-Sprague Dawley Rats Have Impaired Peri-Implant Bone Formation, Matrix Composition, and Implant Fixation Strength. JBMR Plus 2023; 7:e10819. [PMID: 38025036 PMCID: PMC10652173 DOI: 10.1002/jbm4.10819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 08/14/2023] [Accepted: 08/31/2023] [Indexed: 12/01/2023] Open
Abstract
An increasing number of patients with type 2 diabetes (T2DM) will require total joint replacement (TJR) in the next decade. T2DM patients are at increased risk for TJR failure, but the mechanisms are not well understood. The current study used the Zucker Diabetic-Sprague Dawley (ZDSD) rat model of T2DM with Sprague Dawley (SPD) controls to investigate the effects of intramedullary implant placement on osseointegration, peri-implant bone structure and matrix composition, and fixation strength at 2 and 10 weeks post-implant placement. Postoperative inflammation was assessed with circulating MCP-1 and IL-10 2 days post-implant placement. In addition to comparing the two groups, stepwise linear regression modeling was performed to determine the relative contribution of glucose, cytokines, bone formation, bone structure, and bone matrix composition on osseointegration and implant fixation strength. ZDSD rats had decreased peri-implant bone formation and reduced trabecular bone volume per total volume compared with SPD controls. The osseointegrated bone matrix of ZDSD rats had decreased mineral-to-matrix and increased crystallinity compared with SPD controls. Osseointegrated bone volume per total volume was not different between the groups, whereas implant fixation was significantly decreased in ZDSD at 2 weeks but not at 10 weeks. A combination of trabecular mineral apposition rate and postoperative MCP-1 levels explained 55.6% of the variance in osseointegration, whereas cortical thickness, osseointegration mineral apposition rate, and matrix compositional parameters explained 69.2% of the variance in implant fixation strength. The results support the growing recognition that both peri-implant structure and matrix composition affect implant fixation and suggest that postoperative inflammation may contribute to poor outcomes after TJR surgeries in T2DM patients. © 2023 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Kyle D Anderson
- Department of Anatomy and Cell BiologyRush University Medical CenterChicagoILUSA
| | - Christian Beckmann
- Department of Orthopedic SurgeryRush University Medical CenterChicagoILUSA
| | - Saskia Heermant
- Department of Orthopedic SurgeryRush University Medical CenterChicagoILUSA
| | - Frank C Ko
- Department of Anatomy and Cell BiologyRush University Medical CenterChicagoILUSA
- Department of Orthopedic SurgeryRush University Medical CenterChicagoILUSA
| | - Bryan Dulion
- Department of Anatomy and Cell BiologyRush University Medical CenterChicagoILUSA
| | - Imad Tarhoni
- Department of Anatomy and Cell BiologyRush University Medical CenterChicagoILUSA
| | - Jeffrey A Borgia
- Department of Anatomy and Cell BiologyRush University Medical CenterChicagoILUSA
| | - Amarjit S Virdi
- Department of Anatomy and Cell BiologyRush University Medical CenterChicagoILUSA
- Department of Orthopedic SurgeryRush University Medical CenterChicagoILUSA
| | - Markus A Wimmer
- Department of Orthopedic SurgeryRush University Medical CenterChicagoILUSA
| | - D Rick Sumner
- Department of Anatomy and Cell BiologyRush University Medical CenterChicagoILUSA
- Department of Orthopedic SurgeryRush University Medical CenterChicagoILUSA
| | - Ryan D Ross
- Department of Anatomy and Cell BiologyRush University Medical CenterChicagoILUSA
- Department of Orthopedic SurgeryRush University Medical CenterChicagoILUSA
- Department of Microbial Pathogens and ImmunityRush University Medical CenterChicagoILUSA
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10
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Shen Y, Tang Q, Wang J, Zhou Z, Yin Y, Zhang Y, Zheng W, Wang X, Chen G, Sun J, Chen L. Targeting RORα in macrophages to boost diabetic bone regeneration. Cell Prolif 2023; 56:e13474. [PMID: 37051760 PMCID: PMC10542986 DOI: 10.1111/cpr.13474] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/14/2023] Open
Abstract
Diabetes mellitus (DM) has become a serious threat to human health. Bone regeneration deficiency and nonunion caused by DM is perceived as a worldwide epidemic, with a very high socioeconomic impact on public health. Here, we find that targeted activation of retinoic acid-related orphan receptor α (RORα) by SR1078 in the early stage of bone defect repair can significantly promote in situ bone regeneration of DM rats. Bone regeneration relies on the activation of macrophage RORα in the early bone repair, but RORα of DM rats fails to upregulation as hyperglycemic inflammatory microenvironment induced IGF1-AMPK signalling deficiency. Mechanistic investigations suggest that RORα is vital for macrophage-induced migration and proliferation of bone mesenchymal stem cells (BMSCs) via a CCL3/IL-6 depending manner. In summary, our study identifies RORα expressed in macrophages during the early stage of bone defect repair is crucial for in situ bone regeneration, and offers a novel strategy for bone regeneration therapy and fracture repair in DM patients.
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Affiliation(s)
- Yufeng Shen
- Department of StomatologyUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430022China
- School of StomatologyTongji Medical College, Huazhong University of Science and TechnologyWuhan 430030China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhan 430022China
- Department of Stomatology, The First Affiliated Hospital, School of MedicineShihezi UniversityShihezi 832000China
| | - Qingming Tang
- Department of StomatologyUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430022China
- School of StomatologyTongji Medical College, Huazhong University of Science and TechnologyWuhan 430030China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhan 430022China
| | - Jiajia Wang
- Department of StomatologyUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430022China
- School of StomatologyTongji Medical College, Huazhong University of Science and TechnologyWuhan 430030China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhan 430022China
| | - Zheng Zhou
- Department of Stomatology, The First Affiliated Hospital, School of MedicineShihezi UniversityShihezi 832000China
| | - Ying Yin
- Department of StomatologyUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430022China
- School of StomatologyTongji Medical College, Huazhong University of Science and TechnologyWuhan 430030China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhan 430022China
| | - Yifan Zhang
- Department of StomatologyUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430022China
- School of StomatologyTongji Medical College, Huazhong University of Science and TechnologyWuhan 430030China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhan 430022China
| | - Wenhao Zheng
- Department of StomatologyUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430022China
- School of StomatologyTongji Medical College, Huazhong University of Science and TechnologyWuhan 430030China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhan 430022China
| | - Xinyuan Wang
- Department of StomatologyUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430022China
- School of StomatologyTongji Medical College, Huazhong University of Science and TechnologyWuhan 430030China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhan 430022China
| | - Guangjin Chen
- Department of StomatologyUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430022China
- School of StomatologyTongji Medical College, Huazhong University of Science and TechnologyWuhan 430030China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhan 430022China
| | - Jiwei Sun
- Department of StomatologyUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430022China
- School of StomatologyTongji Medical College, Huazhong University of Science and TechnologyWuhan 430030China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhan 430022China
| | - Lili Chen
- Department of StomatologyUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430022China
- School of StomatologyTongji Medical College, Huazhong University of Science and TechnologyWuhan 430030China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhan 430022China
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11
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Tang Q, Dong M, Xu Z, Xue N, Jiang R, Wei X, Gu J, Li Y, Xin R, Wang J, Xiao X, Zhou X, Yin S, Wang Y, Chen J. Red blood cell-mimicking liposomes loading curcumin promote diabetic wound healing. J Control Release 2023; 361:871-884. [PMID: 37532149 DOI: 10.1016/j.jconrel.2023.07.049] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 07/27/2023] [Accepted: 07/30/2023] [Indexed: 08/04/2023]
Abstract
The excessive inflammatory response is known to be a major challenge for diabetic wound healing, while bacteria secreted toxin, α-hemolysin (Hlα), was recently reported to prolong inflammation and delay diabetic wound healing. In this study, we designed a red blood cell membrane (RBCM)-mimicking liposome containing curcumin (named RC-Lip) for the treatment of diabetic wounds. RC-Lips were successfully fabricated using the thin film dispersion method, and the fusion of RBC membrane with the liposomal membrane was confirmed via surface protein analysis. RC-Lips efficiently adsorbed Hlα, thereby reducing the damage and pro-apoptotic effects of Hlα on keratinocytes. Furthermore, they remarkably facilitated liposome uptake into macrophages with advanced curcumin release and regulation of M2 macrophage polarization. In a diabetic mouse and infected wound model, RC-Lips treatment significantly promoted wound healing and re-epithelialization while downregulating interleukin-1β (IL-1β) and upregulating interleukin-10 (IL-10). In summary, the results showed that the spongiform RC-Lips effectively modulate the inflammatory response after adsorbing Hlα and regulating M2 macrophage polarization, leading to a significant promotion of wound healing in diabetic mice. Hence, this study provides a prospective strategy of efficiently mediating inflammatory response for diabetic wounds.
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Affiliation(s)
- Qinghan Tang
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Mei Dong
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China.
| | - Zeyu Xu
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Nannan Xue
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Ruihan Jiang
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Xuchao Wei
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Jingyue Gu
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Yue Li
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Rongshuang Xin
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Jia Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Xueying Xiao
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Xin Zhou
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Shaoping Yin
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Yiwei Wang
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China; Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing 210023, PR China.
| | - Jun Chen
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China; Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing 210023, PR China.
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12
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Li S, Yang C, Li J, Zhang C, Zhu L, Song Y, Guo Y, Wang R, Gan D, Shi J, Ma P, Gao F, Su H. Progress in Pluronic F127 Derivatives for Application in Wound Healing and Repair. Int J Nanomedicine 2023; 18:4485-4505. [PMID: 37576462 PMCID: PMC10416793 DOI: 10.2147/ijn.s418534] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 07/10/2023] [Indexed: 08/15/2023] Open
Abstract
Pluronic F127 hydrogel biomaterial has garnered considerable attention in wound healing and repair due to its remarkable properties including temperature sensitivity, injectability, biodegradability, and maintain a moist wound environment. This comprehensive review provides an in-depth exploration of the recent advancements in Pluronic F127-derived hydrogels, such as F127-CHO, F127-NH2, and F127-DA, focusing on their applications in the treatment of various types of wounds, ranging from burns and acute wounds to infected wounds, diabetic wounds, cutaneous tumor wounds, and uterine scars. Furthermore, the review meticulously examines the intricate interaction mechanisms employed by these hydrogels within the wound microenvironment. By elucidating the underlying mechanisms, discussing the strengths and weaknesses of Pluronic F127, analyzing the current state of wound healing development, and expanding on the trend of targeting mitochondria and cells with F127 as a nanomaterial. The review enhances our understanding of the therapeutic effects of these hydrogels aims to foster the development of effective and safe wound-healing modalities. The valuable insights provided this review have the potential to inspire novel ideas for clinical treatment and facilitate the advancement of innovative wound management approaches.
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Affiliation(s)
- Shanshan Li
- Department of Oncology, The Second Affiliated Hospital, Air Force Medical University, Xi’an City, People’s Republic of China
| | - Cheng Yang
- Department of Oncology, The Second Affiliated Hospital, Air Force Medical University, Xi’an City, People’s Republic of China
| | - Junqiang Li
- Department of Oncology, The Second Affiliated Hospital, Air Force Medical University, Xi’an City, People’s Republic of China
| | - Chao Zhang
- Department of Oncology, The Second Affiliated Hospital, Air Force Medical University, Xi’an City, People’s Republic of China
| | - Liaoliao Zhu
- Department of Oncology, The Second Affiliated Hospital, Air Force Medical University, Xi’an City, People’s Republic of China
| | - Yang Song
- Department of Oncology, The Second Affiliated Hospital, Air Force Medical University, Xi’an City, People’s Republic of China
| | - Yongdong Guo
- Department of Oncology, The Second Affiliated Hospital, Air Force Medical University, Xi’an City, People’s Republic of China
| | - Ronglin Wang
- Department of Oncology, The Second Affiliated Hospital, Air Force Medical University, Xi’an City, People’s Republic of China
| | - Dongxue Gan
- Department of Oncology, The Second Affiliated Hospital, Air Force Medical University, Xi’an City, People’s Republic of China
| | - Jingjie Shi
- Department of Oncology, The Second Affiliated Hospital, Air Force Medical University, Xi’an City, People’s Republic of China
| | - Peixiang Ma
- Department of Oncology, The Second Affiliated Hospital, Air Force Medical University, Xi’an City, People’s Republic of China
| | - Fei Gao
- Center for Peptide Functional Materials and Innovative Drugs, Institute of Translational Medicine, Shanghai University, ShangHai City, People’s Republic of China
| | - Haichuan Su
- Department of Oncology, The Second Affiliated Hospital, Air Force Medical University, Xi’an City, People’s Republic of China
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13
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Burger B, Sagiorato RN, Silva JR, Candreva T, Pacheco MR, White D, Castelucci BG, Pral LP, Fisk HL, Rabelo ILA, Elias-Oliveira J, Osório WR, Consonni SR, Farias ADS, Vinolo MAR, Lameu C, Carlos D, Fielding BA, Whyte MB, Martinez FO, Calder PC, Rodrigues HG. Eicosapentaenoic acid-rich oil supplementation activates PPAR-γ and delays skin wound healing in type 1 diabetic mice. Front Immunol 2023; 14:1141731. [PMID: 37359536 PMCID: PMC10289002 DOI: 10.3389/fimmu.2023.1141731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 05/15/2023] [Indexed: 06/28/2023] Open
Abstract
Delayed wound healing is a devastating complication of diabetes and supplementation with fish oil, a source of anti-inflammatory omega-3 (ω-3) fatty acids including eicosapentaenoic acid (EPA), seems an appealing treatment strategy. However, some studies have shown that ω-3 fatty acids may have a deleterious effect on skin repair and the effects of oral administration of EPA on wound healing in diabetes are unclear. We used streptozotocin-induced diabetes as a mouse model to investigate the effects of oral administration of an EPA-rich oil on wound closure and quality of new tissue formed. Gas chromatography analysis of serum and skin showed that EPA-rich oil increased the incorporation of ω-3 and decreased ω-6 fatty acids, resulting in reduction of the ω-6/ω-3 ratio. On the tenth day after wounding, EPA increased production of IL-10 by neutrophils in the wound, reduced collagen deposition, and ultimately delayed wound closure and impaired quality of the healed tissue. This effect was PPAR-γ-dependent. EPA and IL-10 reduced collagen production by fibroblasts in vitro. In vivo, topical PPAR-γ-blockade reversed the deleterious effects of EPA on wound closure and on collagen organization in diabetic mice. We also observed a reduction in IL-10 production by neutrophils in diabetic mice treated topically with the PPAR-γ blocker. These results show that oral supplementation with EPA-rich oil impairs skin wound healing in diabetes, acting on inflammatory and non-inflammatory cells.
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Affiliation(s)
- Beatriz Burger
- Laboratory of Nutrients and Tissue Repair, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Roberta Nicolli Sagiorato
- Laboratory of Nutrients and Tissue Repair, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Jéssica Rondoni Silva
- Laboratory of Nutrients and Tissue Repair, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Thamiris Candreva
- Laboratory of Nutrients and Tissue Repair, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Mariana R. Pacheco
- Laboratory of Nutrients and Tissue Repair, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Daniel White
- Department of General Surgery, The Royal Surrey National Health Service (NHS) Foundation Trust Hospital, Guildford, United Kingdom
| | - Bianca G. Castelucci
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Laís P. Pral
- Laboratory of Immunoinflammation, Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Helena L. Fisk
- School of Human Development & Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Izadora L. A. Rabelo
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Jefferson Elias-Oliveira
- Departments of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Wislei Riuper Osório
- Laboratory of Manufacturing Advanced Materials, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Silvio Roberto Consonni
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Alessandro dos Santos Farias
- Autoimmune Research Lab, Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Marco Aurélio Ramirez Vinolo
- Laboratory of Immunoinflammation, Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Claudiana Lameu
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Daniela Carlos
- Departments of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Barbara A. Fielding
- Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - Martin Brunel Whyte
- Department of Medicine, King’s College Hospital National Health Service (NHS) Foundation Trust, London, United Kingdom
- Department of Clinical & Experimental Medicine, School of Biosciences and Medicine, University of Surrey, Guildford, United Kingdom
| | - Fernando O. Martinez
- Department of Biochemical Sciences, School of Biosciences and Medicine, University of Surrey, Guildford, United Kingdom
| | - Philip C. Calder
- School of Human Development & Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
- National Institute for Health and Care Research (NIHR) Southampton Biomedical Research Centre, University Hospital Southampton National Health Service (NHS) Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - Hosana Gomes Rodrigues
- Laboratory of Nutrients and Tissue Repair, School of Applied Sciences, University of Campinas, Limeira, Brazil
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14
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Rangwala US, Tashrifwala F, Egbert NN, Asif AA. The Potential of Topical Therapy for Diabetic Wounds: A Narrative Review. Cureus 2023; 15:e36887. [PMID: 37128530 PMCID: PMC10147563 DOI: 10.7759/cureus.36887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/29/2023] [Indexed: 03/31/2023] Open
Abstract
The rising prevalence of diabetes mellitus brings with it a rise in the occurrence of several complications of the disease such as chronic non-healing wounds. Diabetics are more prone to developing chronic wounds due to complications like peripheral neuropathy, poor foot care, hyperglycaemia and peripheral vascular diseases. The aim of this review is to discuss the various imbalances in the cytokine environment of diabetic wounds and to explore the developments in their management with an emphasis on agents that may be used topically to aid the healing process of chronic wounds. A systematic search was conducted on Scopus, PubMed and Google Scholar and relevant articles were shortlisted. We conclude that increased blood sugar impairs most phases of wound healing in several ways. Supplementary therapy with either topical or systemic cytokines is shown to promote wound healing in a diabetic wound.
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15
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Mony MP, Harmon KA, Hess R, Dorafshar AH, Shafikhani SH. An Updated Review of Hypertrophic Scarring. Cells 2023; 12:cells12050678. [PMID: 36899815 PMCID: PMC10000648 DOI: 10.3390/cells12050678] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/01/2023] [Accepted: 02/08/2023] [Indexed: 02/24/2023] Open
Abstract
Hypertrophic scarring (HTS) is an aberrant form of wound healing that is associated with excessive deposition of extracellular matrix and connective tissue at the site of injury. In this review article, we provide an overview of normal (acute) wound healing phases (hemostasis, inflammation, proliferation, and remodeling). We next discuss the dysregulated and/or impaired mechanisms in wound healing phases that are associated with HTS development. We next discuss the animal models of HTS and their limitations, and review the current and emerging treatments of HTS.
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Affiliation(s)
- Manjula P. Mony
- Department of Surgery, Division of Plastic & Reconstructive Surgery, Rush University Medical Center, Chicago, IL 60612, USA
| | - Kelly A. Harmon
- Department of Surgery, Division of Plastic & Reconstructive Surgery, Rush University Medical Center, Chicago, IL 60612, USA
| | - Ryan Hess
- Department of Surgery, Division of Plastic & Reconstructive Surgery, Rush University Medical Center, Chicago, IL 60612, USA
| | - Amir H. Dorafshar
- Department of Surgery, Division of Plastic & Reconstructive Surgery, Rush University Medical Center, Chicago, IL 60612, USA
| | - Sasha H. Shafikhani
- Department of Medicine, Division of Hematology and Oncology and Cell Therapy, Rush University Medical Center, Chicago, IL 60612, USA
- Cancer Center, Rush University Medical Center, Chicago, IL 60612, USA
- Correspondence:
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16
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Ge Y, Wang Q. Current research on fungi in chronic wounds. Front Mol Biosci 2023; 9:1057766. [PMID: 36710878 PMCID: PMC9874004 DOI: 10.3389/fmolb.2022.1057766] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 12/30/2022] [Indexed: 01/13/2023] Open
Abstract
The occurrence of chronic wounds is a major global health issue. These wounds are difficult to heal as a result of disordered healing mechanisms. The most common types of chronic wounds are diabetic ulcers, pressure ulcers, arterial/venous ulcers and nonhealing surgical wounds. Although bacteria are an important cause of chronic nonhealing wounds, fungi also play a substantial role in them. The fungal infection rate varies with different chronic wound types, but overall, the prevalence of fungi is extremely underestimated in the clinical treatment and management of chronic wounds. Wounds and ulcers can be colonized by host cutaneous, commensal or environmental fungi and evolve into local infections, causing fungemia as well as invasive fungal disease. Furthermore, the fungi involved in nonhealing wound-related infections help commensal bacteria resist antibiotics and the host immune response, forcing wounds to become reservoirs for multiresistant species, which are considered a potential key factor in the microbial bioburden of wounds and ulcers. Fungi can be recalcitrant to the healing process. Biofilm establishment is the predominant mechanism of fungal resistance or tolerance to antimicrobials in chronic nonhealing wounds. Candida albicans yeast and Trichophyton rubrum filamentous fungi are the main fungi involved in chronic wound infection. Fungal species diversity and drug resistance phenotypes in different chronic nonhealing wound types will be emphasized. In this review, we outline the latest research on fungi in chronic wounds and discuss challenges and future perspectives related to diagnosing and managing chronic wounds.
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Affiliation(s)
- Yumei Ge
- Department of Clinical Laboratory, Laboratory Medicine Center, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China,Institute of Immunology, Zhejiang University, Hangzhou, China,The Key Laboratory for Immunity and Inflammatory Diseases of Zhejiang Province, Hangzhou, China,The Key Laboratory of Biomarkers and In Vitro Diagnosis Translation of Zhejiang province, Hangzhou, China
| | - Qingqing Wang
- Institute of Immunology, Zhejiang University, Hangzhou, China,The Key Laboratory for Immunity and Inflammatory Diseases of Zhejiang Province, Hangzhou, China,*Correspondence: Qingqing Wang,
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17
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Wood SJ, Kuzel TM, Shafikhani SH. Pseudomonas aeruginosa: Infections, Animal Modeling, and Therapeutics. Cells 2023; 12:199. [PMID: 36611992 PMCID: PMC9818774 DOI: 10.3390/cells12010199] [Citation(s) in RCA: 45] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 01/05/2023] Open
Abstract
Pseudomonas aeruginosa is an important Gram-negative opportunistic pathogen which causes many severe acute and chronic infections with high morbidity, and mortality rates as high as 40%. What makes P. aeruginosa a particularly challenging pathogen is its high intrinsic and acquired resistance to many of the available antibiotics. In this review, we review the important acute and chronic infections caused by this pathogen. We next discuss various animal models which have been developed to evaluate P. aeruginosa pathogenesis and assess therapeutics against this pathogen. Next, we review current treatments (antibiotics and vaccines) and provide an overview of their efficacies and their limitations. Finally, we highlight exciting literature on novel antibiotic-free strategies to control P. aeruginosa infections.
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Affiliation(s)
- Stephen J. Wood
- Department of Medicine, Division of Hematology, Oncology, & Cell Therapy, Rush University Medical Center, Chicago, IL 60612, USA
- Department of Microbial Pathogens and Immunity, Rush University Medical Center, Chicago, IL 60612, USA
| | - Timothy M. Kuzel
- Department of Medicine, Division of Hematology, Oncology, & Cell Therapy, Rush University Medical Center, Chicago, IL 60612, USA
- Cancer Center, Rush University Medical Center, Chicago, IL 60612, USA
| | - Sasha H. Shafikhani
- Department of Medicine, Division of Hematology, Oncology, & Cell Therapy, Rush University Medical Center, Chicago, IL 60612, USA
- Department of Microbial Pathogens and Immunity, Rush University Medical Center, Chicago, IL 60612, USA
- Cancer Center, Rush University Medical Center, Chicago, IL 60612, USA
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18
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Shen Y, Zhang Y, Zhou Z, Wang J, Han D, Sun J, Chen G, Tang Q, Sun W, Chen L. Dysfunction of macrophages leads to diabetic bone regeneration deficiency. Front Immunol 2022; 13:990457. [PMID: 36311779 PMCID: PMC9613949 DOI: 10.3389/fimmu.2022.990457] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 10/03/2022] [Indexed: 11/22/2022] Open
Abstract
Insufficient bone matrix formation caused by diabetic chronic inflammation can result in bone nonunion, which is perceived as a worldwide epidemic, with a substantial socioeconomic and public health burden. Macrophages in microenvironment orchestrate the inflammation and launch the process of bone remodeling and repair, but aberrant activation of macrophages can drive drastic inflammatory responses during diabetic bone regeneration. In diabetes mellitus, the proliferation of resident macrophages in bone microenvironment is limited, while enhanced myeloid differentiation of hematopoietic stem cells (HSCs) leads to increased and constant monocyte recruitment and thus macrophages shift toward the classic pro-inflammatory phenotype, which leads to the deficiency of bone regeneration. In this review, we systematically summarized the anomalous origin of macrophages under diabetic conditions. Moreover, we evaluated the deficit of pro-regeneration macrophages in the diabetic inflammatory microenvironment. Finally, we further discussed the latest developments on strategies based on targeting macrophages to promote diabetic bone regeneration. Briefly, this review aimed to provide a basis for modulating the biological functions of macrophages to accelerate bone regeneration and rescue diabetic fracture healing in the future.
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Affiliation(s)
- Yufeng Shen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Yifan Zhang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Zheng Zhou
- Department of Stomatology, The First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, China
| | - Jinyu Wang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Dong Han
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Jiwei Sun
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Guangjin Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Qingming Tang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Wei Sun
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
- *Correspondence: Lili Chen, ; Wei Sun,
| | - Lili Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
- *Correspondence: Lili Chen, ; Wei Sun,
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19
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Vieceli Dalla Sega F, Cimaglia P, Manfrini M, Fortini F, Marracino L, Bernucci D, Pompei G, Scala A, Trichilo M, De Carolis B, Dalla Paola L, Ferrari R, Rizzo P, Campo G. Circulating Biomarkers of Endothelial Dysfunction and Inflammation in Predicting Clinical Outcomes in Diabetic Patients with Critical Limb Ischemia. Int J Mol Sci 2022; 23:ijms231810641. [PMID: 36142551 PMCID: PMC9506462 DOI: 10.3390/ijms231810641] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 11/18/2022] Open
Abstract
Critical limb ischemia (CLI) is a severe manifestation of peripheral artery disease characterized by ischemic pain, which is frequently associated with diabetes and non-healing lesions to inferior limbs. The clinical management of diabetic patients with CLI typically includes percutaneous transluminal angioplasty (PTA) to restore limb circulation and surgical treatment of diabetic foot ulcers (DFU). However, even after successful treatment, CLI patients are prone to post-procedure complications, which may lead to unplanned revascularization or foot surgery. Unfortunately, the factors predicting adverse events in treated CLI patients are only partially known. This study aimed to identify potential biomarkers that predict the disease course in diabetic patients with CLI. For this purpose, we measured the circulating levels of a panel of 23 molecules related to inflammation, endothelial dysfunction, platelet activation, and thrombophilia in 92 patients with CLI and DFU requiring PTA and foot surgery. We investigated whether these putative biomarkers were associated with the following clinical endpoints: (1) healing of the treated DFUs; (2) need for new revascularization of the limb; (3) appearance of new lesions or relapses after successful healing. We found that sICAM-1 and endothelin-1 are inversely associated with DFU healing and that PAI-1 and endothelin-1 are associated with the need for new revascularization. Moreover, we found that the levels of thrombomodulin and sCD40L are associated with new lesions or recurrence, and we show that the levels of these biomarkers could be used in a decision tree to assign patients to clusters with different risks of developing new lesions or recurrences.
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Affiliation(s)
| | - Paolo Cimaglia
- Maria Cecilia Hospital, GVM Care and Research, 48033 Cotignola, Italy
| | - Marco Manfrini
- Maria Cecilia Hospital, GVM Care and Research, 48033 Cotignola, Italy
| | - Francesca Fortini
- Maria Cecilia Hospital, GVM Care and Research, 48033 Cotignola, Italy
| | - Luisa Marracino
- Department of Translational Medicine, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy
| | | | - Graziella Pompei
- Cardiology Unit, Azienda Ospedaliero-Universitaria di Ferrara, University of Ferrara, 44124 Ferrara, Italy
| | - Antonella Scala
- Cardiology Unit, Azienda Ospedaliero-Universitaria di Ferrara, University of Ferrara, 44124 Ferrara, Italy
| | - Michele Trichilo
- Cardiology Unit, Azienda Ospedaliero-Universitaria di Ferrara, University of Ferrara, 44124 Ferrara, Italy
| | - Beatrice De Carolis
- Cardiology Unit, Azienda Ospedaliero-Universitaria di Ferrara, University of Ferrara, 44124 Ferrara, Italy
| | - Luca Dalla Paola
- Maria Cecilia Hospital, GVM Care and Research, 48033 Cotignola, Italy
| | - Roberto Ferrari
- Maria Cecilia Hospital, GVM Care and Research, 48033 Cotignola, Italy
| | - Paola Rizzo
- Maria Cecilia Hospital, GVM Care and Research, 48033 Cotignola, Italy
- Department of Translational Medicine, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy
| | - Gianluca Campo
- Cardiology Unit, Azienda Ospedaliero-Universitaria di Ferrara, University of Ferrara, 44124 Ferrara, Italy
- Correspondence:
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20
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Guo C, Wu Y, Li W, Wang Y, Kong Q. Development of a Microenvironment-Responsive Hydrogel Promoting Chronically Infected Diabetic Wound Healing through Sequential Hemostatic, Antibacterial, and Angiogenic Activities. ACS APPLIED MATERIALS & INTERFACES 2022; 14:30480-30492. [PMID: 35467827 DOI: 10.1021/acsami.2c02725] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Microenvironment-responsive hydrogels present high potential in treating refractory wounds due to their capability of on-demand drug release. In this study, a specially designed hydrogel with smart targeting of refractory wound characteristics was designed to treat chronically infected diabetic wounds. Aminated gelatin reacted with oxidized dextran, forming a hydrogel cross-linked with a dynamic Schiff base, which is sensitive to the low-pH environment in refractory wounds. Nano-ZnO was loaded into the hydrogel for killing microbes. A Paeoniflorin-encapsulated micelle with a ROS-responsive property was fixed to the skeleton of the hydrogel via a Schiff base bond for low-pH- and ROS-stimulated angiogenic activity. The sequential responsiveness of the novel hydrogel enabled smart rescue of the deleterious microenvironment in refractory wounds. This highly biocompatible hydrogel demonstrated antibacterial and angiogenic abilities in vitro and significantly promoted healing of chronically infected diabetic wounds via sequential hemostatic, microbe killing, and angiogenic activities. This microenvironment-responsive hydrogel loaded with nZnO and Pf-encapsulated micelles holds great potential as a location-specific dual-response delivery platform for curing refractory, chronically infected diabetic wounds.
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Affiliation(s)
- Chuan Guo
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Ye Wu
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Weilong Li
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Yu Wang
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Qingquan Kong
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China.,Joint Research Institute of Altitude Health, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
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21
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CrkII/Abl phosphorylation cascade is critical for NLRC4 inflammasome activity and is blocked by Pseudomonas aeruginosa ExoT. Nat Commun 2022; 13:1295. [PMID: 35277504 PMCID: PMC8917168 DOI: 10.1038/s41467-022-28967-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 02/22/2022] [Indexed: 11/17/2022] Open
Abstract
Type 3 Secretion System (T3SS) is a highly conserved virulence structure that plays an essential role in the pathogenesis of many Gram-negative pathogenic bacteria, including Pseudomonas aeruginosa. Exotoxin T (ExoT) is the only T3SS effector protein that is expressed in all T3SS-expressing P. aeruginosa strains. Here we show that T3SS recognition leads to a rapid phosphorylation cascade involving Abl / PKCδ / NLRC4, which results in NLRC4 inflammasome activation, culminating in inflammatory responses that limit P. aeruginosa infection in wounds. We further show that ExoT functions as the main anti-inflammatory agent for P. aeruginosa in that it blocks the phosphorylation cascade through Abl / PKCδ / NLRC4 by targeting CrkII, which we further demonstrate to be important for Abl transactivation and NLRC4 inflammasome activation in response to T3SS and P. aeruginosa infection. Pseudomonas aeruginosa secretes the toxin ExoT, which is important for pathogenesis. Here, the authors show that ExoT inhibits NLRC4-dependent inflammatory responses during wound infection.
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22
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Roy R, Zayas J, Singh SK, Delgado K, Wood SJ, Mohamed MF, Frausto DM, Estupinian R, Giurini EF, Kuzel TM, Zloza A, Reiser J, Shafikhani SH. Overriding impaired FPR chemotaxis signaling in diabetic neutrophil stimulates infection control in murine diabetic wound. eLife 2022; 11:72071. [PMID: 35112667 PMCID: PMC8846594 DOI: 10.7554/elife.72071] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 02/01/2022] [Indexed: 11/19/2022] Open
Abstract
Infection is a major co-morbidity that contributes to impaired healing in diabetic wounds. Although impairments in diabetic neutrophils have been blamed for this co-morbidity, what causes these impairments and whether they can be overcome, remain largely unclear. Diabetic neutrophils, isolated from diabetic individuals, exhibit chemotaxis impairment but this peculiar functional impairment has been largely ignored because it appears to contradict the clinical findings which blame excessive neutrophil influx as a major impediment to healing in chronic diabetic ulcers. Here, we report that exposure to glucose in diabetic range results in impaired chemotaxis signaling through the formyl peptide receptor (FPR) in neutrophils, culminating in reduced chemotaxis and delayed neutrophil trafficking in the wound of Leprdb (db/db) type two diabetic mice, rendering diabetic wound vulnerable to infection. We further show that at least some auxiliary receptors remain functional under diabetic conditions and their engagement by the pro-inflammatory cytokine CCL3, overrides the requirement for FPR signaling and substantially improves infection control by jumpstarting the neutrophil trafficking toward infection, and stimulates healing in diabetic wound. We posit that CCL3 may have therapeutic potential for the treatment of diabetic foot ulcers if it is applied topically after the surgical debridement process which is intended to reset chronic ulcers into acute fresh wounds.
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Affiliation(s)
- Ruchi Roy
- Department of Medicine, Rush University Medical Center, Chicago, United States
| | - Janet Zayas
- Department of Medicine, Rush University Medical Center, Chicago, United States
| | - Sunil K Singh
- Department of Surgery, Division of Surgical Oncology, University of Illinois at Chicago, Chicago, United States
| | - Kaylee Delgado
- Department of Medicine, Rush University Medical Center, Chicago, United States
| | - Stephen J Wood
- Department of Microbial Pathogens and Immunity, Rush University Medical Center, Chicago, United States
| | - Mohamed F Mohamed
- Department of Medicine, Rush University Medical Center, Chicago, United States
| | - Dulce M Frausto
- Department of Medicine, Rush University Medical Center, Chicago, United States
| | - Ricardo Estupinian
- Department of Medicine, Rush University Medical Center, Chicago, United States
| | - Eileena F Giurini
- Department of Medicine, Rush University Medical Center, Chicago, United States
| | - Timothy M Kuzel
- Department of Medicine, Rush University Medical Center, Chicago, United States
| | - Andrew Zloza
- Department of Medicine, Rush University Medical Center, Chicago, United States
| | - Jochen Reiser
- Department of Medicine, Rush University Medical Center, Chicago, United States
| | - Sasha H Shafikhani
- Department of Medicine, Rush University Medical Center, Chicago, United States
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23
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Mahmud F, Roy R, Mohamed MF, Aboonabi A, Moric M, Ghoreishi K, Bayat M, Kuzel TM, Reiser J, Shafikhani SH. Therapeutic evaluation of immunomodulators in reducing surgical wound infection. FASEB J 2022; 36:e22090. [PMID: 34907595 PMCID: PMC9058973 DOI: 10.1096/fj.202101019r] [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: 06/21/2021] [Revised: 11/10/2021] [Accepted: 11/23/2021] [Indexed: 01/03/2023]
Abstract
Despite many advances in infection control practices, including prophylactic antibiotics, surgical site infections (SSIs) remain a significant cause of morbidity, prolonged hospitalization, and death worldwide. Our innate immune system possesses a multitude of powerful antimicrobial strategies which make it highly effective in combating bacterial, fungal, and viral infections. However, pathogens use various stealth mechanisms to avoid the innate immune system, which in turn buy them time to colonize wounds and damage tissues at surgical sites. We hypothesized that immunomodulators that can jumpstart and activate innate immune responses at surgical sites, would likely reduce infection at surgical sites. We used three immunomodulators; fMLP (formyl-Methionine-Lysine-Proline), CCL3 (MIP-1α), and LPS (Lipopolysaccharide), based on their documented ability to elicit strong inflammatory responses; in a surgical wound infection model with Pseudomonas aeruginosa to evaluate our hypothesis. Our data indicate that one-time topical treatment with these immunomodulators at low doses significantly increased proinflammatory responses in infected and uninfected surgical wounds and were as effective, (or even better), than a potent prophylactic antibiotic (Tobramycin) in reducing P. aeruginosa infection in wounds. Our data further show that immunomodulators did not have adverse effects on tissue repair and wound healing processes. Rather, they enhanced healing in both infected and uninfected wounds. Collectively, our data demonstrate that harnessing the power of the innate immune system by immunomodulators can significantly boost infection control and potentially stimulate healing. We propose that topical treatment with these immunomodulators at the time of surgery may have therapeutic potential in combating SSI, alone or in combination with prophylactic antibiotics.
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Affiliation(s)
- Foyez Mahmud
- Department of Medicine, Rush University Medical Center, Chicago, IL, USA,Division of Hematology/Oncology/Cell Therapy, Rush University Medical Center, Chicago, IL, USA
| | - Ruchi Roy
- Department of Medicine, Rush University Medical Center, Chicago, IL, USA,Division of Hematology/Oncology/Cell Therapy, Rush University Medical Center, Chicago, IL, USA
| | - Mohamed F. Mohamed
- Department of Medicine, Rush University Medical Center, Chicago, IL, USA,Division of Hematology/Oncology/Cell Therapy, Rush University Medical Center, Chicago, IL, USA
| | - Anahita Aboonabi
- Department of Medicine, Rush University Medical Center, Chicago, IL, USA,Division of Hematology/Oncology/Cell Therapy, Rush University Medical Center, Chicago, IL, USA
| | - Mario Moric
- Department of Anesthesiology, Rush University Medical Center, Chicago, IL, USA
| | | | - Mohammad Bayat
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Science, Tehran, Iran,Price Institute of Surgical Research, University of Louisville and Noveratech LLC. of Louisville, Louisville, KY, USA
| | - Timothy M. Kuzel
- Department of Medicine, Rush University Medical Center, Chicago, IL, USA,Division of Hematology/Oncology/Cell Therapy, Rush University Medical Center, Chicago, IL, USA
| | - Jochen Reiser
- Department of Medicine, Rush University Medical Center, Chicago, IL, USA
| | - Sasha H. Shafikhani
- Department of Medicine, Rush University Medical Center, Chicago, IL, USA,Division of Hematology/Oncology/Cell Therapy, Rush University Medical Center, Chicago, IL, USA,Cancer Center, Rush University Medical Center, Chicago, IL, USA,To whom correspondence should be addressed:
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