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Seenan V, Hsu CF, Subramani K, Chen PC, Ding DC, Chu TY. Ovulation provides excessive coagulation and hepatocyte growth factor signals to cause postoperative intraabdominal adhesions. iScience 2024; 27:109788. [PMID: 38770140 PMCID: PMC11103365 DOI: 10.1016/j.isci.2024.109788] [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: 09/21/2023] [Revised: 03/14/2024] [Accepted: 04/16/2024] [Indexed: 05/22/2024] Open
Abstract
Postoperative adhesions show a higher occurrence in females aged 16-60, especially after pelvic surgeries. This study explores the role of ovulation in adhesion formation in mice. Ovarian surgery in mice with normal- or super-ovulation led to pronounced adhesions, whereas ovulation-defective Pgr-KO mice showed minimal adhesions. Specifically, exposure to ovulatory follicular fluid (FF) markedly increased the adhesion. The hazardous exposure time window was one day before to 2.5 days after the surgery. Mechanistically, early FF exposure triggered adhesions via the blood coagulation cascade, while later exposure relied on the HGF/cMET signaling pathway. Prophylactic administration of a thrombin inhibitor pre-operatively or a cMET inhibitor postoperatively effectively mitigated FF-induced adhesions, while COX inhibitor treatment exhibited no discernible effect. These findings underscore ovulation as a pivotal factor in the development of pelvic wound adhesions and advocate for targeted preventive strategies such as c-MET inhibition, scheduling surgeries outside the ovulatory period, or employing oral contraceptive measures.
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Affiliation(s)
- Vaishnavi Seenan
- Center for Prevention and Therapy of Gynecological Cancers, Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan, ROC
- Institute of Medical Sciences, Tzu Chi University, Hualien 970, Taiwan, ROC
| | - Che-Fang Hsu
- Center for Prevention and Therapy of Gynecological Cancers, Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan, ROC
| | - Kanchana Subramani
- Center for Prevention and Therapy of Gynecological Cancers, Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan, ROC
- Institute of Medical Sciences, Tzu Chi University, Hualien 970, Taiwan, ROC
| | - Pao-Chu Chen
- Department of Obstetrics & Gynecology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan, ROC
| | - Dah-Ching Ding
- Institute of Medical Sciences, Tzu Chi University, Hualien 970, Taiwan, ROC
- Department of Obstetrics & Gynecology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan, ROC
| | - Tang-Yuan Chu
- Center for Prevention and Therapy of Gynecological Cancers, Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan, ROC
- Institute of Medical Sciences, Tzu Chi University, Hualien 970, Taiwan, ROC
- Department of Obstetrics & Gynecology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan, ROC
- Department of Life Sciences, Tzu Chi University, Hualien 970, Taiwan, ROC
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Wein S, Jung SA, Al Enezy-Ulbrich MA, Reicher L, Rütten S, Kühnel M, Jonigk D, Jahnen-Dechent W, Pich A, Neuss S. Impact of Fibrin Gel Architecture on Hepatocyte Growth Factor Release and Its Role in Modulating Cell Behavior for Tissue Regeneration. Gels 2024; 10:402. [PMID: 38920948 PMCID: PMC11203013 DOI: 10.3390/gels10060402] [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: 05/19/2024] [Revised: 06/05/2024] [Accepted: 06/13/2024] [Indexed: 06/27/2024] Open
Abstract
A novel scaffold design has been created to enhance tissue engineering and regenerative medicine by optimizing the controlled, prolonged release of Hepatocyte Growth Factor (HGF), a powerful chemoattractant for endogenous mesenchymal stem cells. We present a new stacked scaffold that is made up of three different fibrin gel layers, each of which has HGF integrated into the matrix. The design attempts to preserve HGF's regenerative properties for long periods of time, which is necessary for complex tissue regeneration. These multi-layered fibrin gels have been mechanically evaluated using rheometry, and their degradation behavior has been studied using D-Dimer ELISA. Understanding the kinetics of HGF release from this novel scaffold configuration is essential for understanding HGF's long-term sustained bioactivity. A range of cell-based tests were carried out to verify the functionality of HGF following extended incorporation. These tests included 2-photon microscopy using phalloidin staining to examine cellular morphology, SEM analysis for scaffold-cell interactions, and scratch and scatter assays to assess migration and motility. The analyses show that the novel stacking scaffold promotes vital cellular processes for tissue regeneration in addition to supporting HGF's bioactivity. This scaffold design was developed for in situ tissue engineering. Using the body as a bioreactor, the scaffold should recruit mesenchymal stem cells from their niche, thus combining the regenerative abilities of HGF and MSCs to promote tissue remodeling and wound repair.
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Affiliation(s)
- Svenja Wein
- BioInterface Group, Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany; (L.R.); (W.J.-D.); (S.N.)
- Institute of Pathology, RWTH Aachen University, Pauwelsstrasse 30, 52074 Aachen, Germany; (M.K.); (D.J.)
| | - Shannon Anna Jung
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany; (S.A.J.); (M.A.A.E.-U.); (A.P.)
- DWI–Leibniz Institute for Interactive Materials, RWTH Aachen University, Forckenbeckstraße 50, 52074 Aachen, Germany
| | - Miriam Aischa Al Enezy-Ulbrich
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany; (S.A.J.); (M.A.A.E.-U.); (A.P.)
- DWI–Leibniz Institute for Interactive Materials, RWTH Aachen University, Forckenbeckstraße 50, 52074 Aachen, Germany
| | - Luca Reicher
- BioInterface Group, Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany; (L.R.); (W.J.-D.); (S.N.)
- Institute of Pathology, RWTH Aachen University, Pauwelsstrasse 30, 52074 Aachen, Germany; (M.K.); (D.J.)
| | - Stephan Rütten
- Electron Microscopic Facility, University Clinics, RWTH Aachen University, Pauwelsstrasse 30, 52074 Aachen, Germany;
| | - Mark Kühnel
- Institute of Pathology, RWTH Aachen University, Pauwelsstrasse 30, 52074 Aachen, Germany; (M.K.); (D.J.)
| | - Danny Jonigk
- Institute of Pathology, RWTH Aachen University, Pauwelsstrasse 30, 52074 Aachen, Germany; (M.K.); (D.J.)
| | - Wilhelm Jahnen-Dechent
- BioInterface Group, Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany; (L.R.); (W.J.-D.); (S.N.)
| | - Andrij Pich
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany; (S.A.J.); (M.A.A.E.-U.); (A.P.)
- DWI–Leibniz Institute for Interactive Materials, RWTH Aachen University, Forckenbeckstraße 50, 52074 Aachen, Germany
| | - Sabine Neuss
- BioInterface Group, Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany; (L.R.); (W.J.-D.); (S.N.)
- Institute of Pathology, RWTH Aachen University, Pauwelsstrasse 30, 52074 Aachen, Germany; (M.K.); (D.J.)
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Higginbotham S, Workman VL, Giblin AV, Green NH, Lambert DW, Hearnden V. Inhibition and reversal of a TGF-β1 induced myofibroblast phenotype by adipose tissue-derived paracrine factors. Stem Cell Res Ther 2024; 15:166. [PMID: 38867276 PMCID: PMC11170827 DOI: 10.1186/s13287-024-03776-3] [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: 03/29/2024] [Accepted: 05/27/2024] [Indexed: 06/14/2024] Open
Abstract
BACKGROUND Hypertrophic scarring results from myofibroblast differentiation and persistence during wound healing. Currently no effective treatment for hypertrophic scarring exists however, autologous fat grafting has been shown to improve scar elasticity, appearance, and function. The aim of this study was to understand how paracrine factors from adipose tissues and adipose-derived stromal cells (ADSC) affect fibroblast to myofibroblast differentiation. METHODS The transforming growth factor-β1 (TGF-β1) induced model of myofibroblast differentiation was used to test the effect of conditioned media from adipose tissue, ADSC or lipid on the proportion of fibroblasts and myofibroblasts. RESULTS Adipose tissue conditioned media inhibited the differentiation of fibroblasts to myofibroblasts but this inhibition was not observed following treatment with ADSC or lipid conditioned media. Hepatocyte growth factor (HGF) was readily detected in the conditioned medium from adipose tissue but not ADSC. Cells treated with HGF, or fortinib to block HGF, demonstrated that HGF was not responsible for the inhibition of myofibroblast differentiation. Conditioned media from adipose tissue was shown to reduce the proportion of myofibroblasts when added to fibroblasts previously treated with TGF-β1, however, conditioned media treatment was unable to significantly reduce the proportion of myofibroblasts in cell populations isolated from scar tissue. CONCLUSIONS Cultured ADSC or adipocytes have been the focus of most studies, however, this work highlights the importance of considering whole adipose tissue to further our understanding of fat grafting. This study supports the use of autologous fat grafts for scar treatment and highlights the need for further investigation to determine the mechanism.
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Affiliation(s)
- S Higginbotham
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK.
- School of Clinical Dentistry, University of Sheffield, Sheffield, UK.
- Newcastle Fibrosis Research Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK.
| | - V L Workman
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK
| | - A-V Giblin
- Department of Plastic Surgery, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - N H Green
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK
- INSIGNEO Institute for in silico Medicine, University of Sheffield, Sheffield, UK
| | - D W Lambert
- School of Clinical Dentistry, University of Sheffield, Sheffield, UK
| | - V Hearnden
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK
- INSIGNEO Institute for in silico Medicine, University of Sheffield, Sheffield, UK
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Frykberg RG, Tunyiswa Z. Assessing placental membrane treatment efficiency in diabetic foot ulcers: Processing for retention versus lamination. Health Sci Rep 2024; 7:e2196. [PMID: 38895546 PMCID: PMC11183911 DOI: 10.1002/hsr2.2196] [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: 02/14/2024] [Revised: 05/25/2024] [Accepted: 05/31/2024] [Indexed: 06/21/2024] Open
Abstract
Background Diabetic foot ulcers are a severe complication in diabetic patients, significantly impact healthcare systems and patient quality of life, often leading to hospitalization and amputation. Traditional Standard of Care (SOC) treatments are inadequate for many patients, necessitating advanced wound care products (AWCPs) like human placental membranes. This study conducts a retrospective analysis to compare the effectiveness of two human placental membrane products, retention-processed amnion chorion (RE-AC) and lamination-processed amnion chorion (L-AC) in managing chronic diabetic foot ulcers (DFUs). Methods The study collected retrospective observational data from electronic health records (EHRs) of patients treated for DFU at three outpatient wound care centers. Patients were categorized into two cohorts based on the treatment received. Key metrics included wound size progression and the number of product applications. The analysis employed Bayesian estimation, utilizing an analysis of covariance model with a Hurdle Gamma likelihood. Results We found that RE-AC achieved a marginally higher expected Percent Area Reduction (xPAR) in DFUs compared to L-AC at 12 weeks (67.3% vs. 52.6%). RE-AC also required fewer applications, suggesting greater efficiency in general wound closure. Probability of full wound closure was similar in both groups (0.738 vs 0.740 in RE-AC and L-AC, respectively). Conclusion The findings suggest that while L-AC might be slightly more effective in complete ulcer healing, RE-AC offers overall better treatment efficiency, especially in reducing the frequency of applications. This efficiency can lead to improved patient comfort, reduced treatment costs, and optimized resource utilization in healthcare settings.
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Jahanbani F, Sing JC, Maynard RD, Jahanbani S, Dafoe J, Dafoe W, Jones N, Wallace KJ, Rastan A, Maecker HT, Röst HL, Snyder MP, Davis RW. Longitudinal cytokine and multi-modal health data of an extremely severe ME/CFS patient with HSD reveals insights into immunopathology, and disease severity. Front Immunol 2024; 15:1369295. [PMID: 38650940 PMCID: PMC11033372 DOI: 10.3389/fimmu.2024.1369295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 03/18/2024] [Indexed: 04/25/2024] Open
Abstract
Introduction Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) presents substantial challenges in patient care due to its intricate multisystem nature, comorbidities, and global prevalence. The heterogeneity among patient populations, coupled with the absence of FDA-approved diagnostics and therapeutics, further complicates research into disease etiology and patient managment. Integrating longitudinal multi-omics data with clinical, health,textual, pharmaceutical, and nutraceutical data offers a promising avenue to address these complexities, aiding in the identification of underlying causes and providing insights into effective therapeutics and diagnostic strategies. Methods This study focused on an exceptionally severe ME/CFS patient with hypermobility spectrum disorder (HSD) during a period of marginal symptom improvements. Longitudinal cytokine profiling was conducted alongside the collection of extensive multi-modal health data to explore the dynamic nature of symptoms, severity, triggers, and modifying factors. Additionally, an updated severity assessment platform and two applications, ME-CFSTrackerApp and LexiTime, were introduced to facilitate real-time symptom tracking and enhance patient-physician/researcher communication, and evaluate response to medical intervention. Results Longitudinal cytokine profiling revealed the significance of Th2-type cytokines and highlighted synergistic activities between mast cells and eosinophils, skewing Th1 toward Th2 immune responses in ME/CFS pathogenesis, particularly in cognitive impairment and sensorial intolerance. This suggests a potentially shared underlying mechanism with major ME/CFS comorbidities such as HSD, Mast cell activation syndrome, postural orthostatic tachycardia syndrome (POTS), and small fiber neuropathy. Additionally, the data identified potential roles of BCL6 and TP53 pathways in ME/CFS etiology and emphasized the importance of investigating adverse reactions to medication and supplements and drug interactions in ME/CFS severity and progression. Discussion Our study advocates for the integration of longitudinal multi-omics with multi-modal health data and artificial intelligence (AI) techniques to better understand ME/CFS and its major comorbidities. These findings highlight the significance of dysregulated Th2-type cytokines in patient stratification and precision medicine strategies. Additionally, our results suggest exploring the use of low-dose drugs with partial agonist activity as a potential avenue for ME/CFS treatment. This comprehensive approach emphasizes the importance of adopting a patient-centered care approach to improve ME/CFS healthcare management, disease severity assessment, and personalized medicine. Overall, these findings contribute to our understanding of ME/CFS and offer avenues for future research and clinical practice.
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Affiliation(s)
- Fereshteh Jahanbani
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, United States
| | - Justin Cyril Sing
- Department of Molecular Genetics, Donnelly Center, University of Toronto, Toronto, ON, Canada
| | - Rajan Douglas Maynard
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, United States
| | - Shaghayegh Jahanbani
- Division of Immunology and Rheumatology, Stanford University School of Medicine, Veterans Affairs (VA) Palo Alto Health Care System, Palo Alto, CA, United States
| | - Janet Dafoe
- ME/CFS Collaborative Research Center at Stanford, Stanford Genome Technology Center, Stanford University School of Medicine, Palo Alto, CA, United States
| | - Whitney Dafoe
- ME/CFS Collaborative Research Center at Stanford, Stanford Genome Technology Center, Stanford University School of Medicine, Palo Alto, CA, United States
| | - Nathan Jones
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, United States
| | - Kelvin J. Wallace
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, United States
| | - Azuravesta Rastan
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, United States
| | - Holden T. Maecker
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Pulmonary and Critical Care Medicine, Institute of Immunity, Transplantation, and Infectious Diseases, Stanford University, Palo Alto, CA, United States
| | - Hannes L. Röst
- Department of Molecular Genetics, Donnelly Center, University of Toronto, Toronto, ON, Canada
| | - Michael P. Snyder
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, United States
| | - Ronald W. Davis
- ME/CFS Collaborative Research Center at Stanford, Stanford Genome Technology Center, Stanford University School of Medicine, Palo Alto, CA, United States
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Liu Z, Zhang X, Wang Y, Tai Y, Yao X, Midgley AC. Emergent Peptides of the Antifibrotic Arsenal: Taking Aim at Myofibroblast Promoting Pathways. Biomolecules 2023; 13:1179. [PMID: 37627244 PMCID: PMC10452577 DOI: 10.3390/biom13081179] [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: 05/30/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023] Open
Abstract
Myofibroblasts are the principal effector cells driving fibrosis, and their accumulation in tissues is a fundamental feature of fibrosis. Essential pathways have been identified as being central to promoting myofibroblast differentiation, revealing multiple targets for intervention. Compared with large proteins and antibodies, peptide-based therapies have transpired to serve as biocompatible and cost-effective solutions to exert biomimicry, agonistic, and antagonistic activities with a high degree of targeting specificity and selectivity. In this review, we summarize emergent antifibrotic peptides and their utilization for the targeted prevention of myofibroblasts. We then highlight recent studies on peptide inhibitors of upstream pathogenic processes that drive the formation of profibrotic cell phenotypes. We also briefly discuss peptides from non-mammalian origins that show promise as antifibrotic therapeutics. Finally, we discuss the future perspectives of peptide design and development in targeting myofibroblasts to mitigate fibrosis.
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Affiliation(s)
- Zhen Liu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Xinyan Zhang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yanrong Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yifan Tai
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Xiaolin Yao
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Adam C. Midgley
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
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Lohana P, Suryaprawira A, Woods EL, Dally J, Gait-Carr E, Alaidaroos NYA, Heard CM, Lee KY, Ruge F, Farrier JN, Enoch S, Caley MP, Peake MA, Davies LC, Giles PJ, Thomas DW, Stephens P, Moseley R. Role of Enzymic Antioxidants in Mediating Oxidative Stress and Contrasting Wound Healing Capabilities in Oral Mucosal/Skin Fibroblasts and Tissues. Antioxidants (Basel) 2023; 12:1374. [PMID: 37507914 PMCID: PMC10375950 DOI: 10.3390/antiox12071374] [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: 06/16/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/30/2023] Open
Abstract
Unlike skin, oral mucosal wounds are characterized by rapid healing and minimal scarring, attributable to the "enhanced" healing properties of oral mucosal fibroblasts (OMFs). As oxidative stress is increasingly implicated in regulating wound healing outcomes, this study compared oxidative stress biomarker and enzymic antioxidant profiles between patient-matched oral mucosal/skin tissues and OMFs/skin fibroblasts (SFs) to determine whether superior oral mucosal antioxidant capabilities and reduced oxidative stress contributed to these preferential healing properties. Oral mucosa and skin exhibited similar patterns of oxidative protein damage and lipid peroxidation, localized within the lamina propria/dermis and oral/skin epithelia, respectively. SOD1, SOD2, SOD3 and catalase were primarily localized within epithelial tissues overall. However, SOD3 was also widespread within the lamina propria localized to OMFs, vasculature and the extracellular matrix. OMFs were further identified as being more resistant to reactive oxygen species (ROS) generation and oxidative DNA/protein damage than SFs. Despite histological evaluation suggesting that oral mucosa possessed higher SOD3 expression, this was not fully substantiated for all OMFs examined due to inter-patient donor variability. Such findings suggest that enzymic antioxidants have limited roles in mediating privileged wound healing responses in OMFs, implying that other non-enzymic antioxidants could be involved in protecting OMFs from oxidative stress overall.
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Affiliation(s)
- Parkash Lohana
- Disease Mechanisms Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
- Canniesburn Plastic Surgery Unit, Glasgow Royal Infirmary, Glasgow G4 0SF, UK
| | - Albert Suryaprawira
- Disease Mechanisms Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
| | - Emma L Woods
- Disease Mechanisms Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
| | - Jordanna Dally
- Disease Mechanisms Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
| | - Edward Gait-Carr
- Disease Mechanisms Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
| | - Nadia Y A Alaidaroos
- Disease Mechanisms Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
| | - Charles M Heard
- School of Pharmacy and Pharmaceutical Sciences, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF10 3NB, UK
| | - Kwok Y Lee
- Disease Mechanisms Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
| | - Fiona Ruge
- Disease Mechanisms Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
- Cardiff China Medical Research Collaborative, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Jeremy N Farrier
- Disease Mechanisms Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
- Oral and Maxilliofacial Surgery, Gloucestershire Royal General Hospital, Gloucester GL1 3NN, UK
| | - Stuart Enoch
- Disease Mechanisms Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
- Department of Burns and Plastic Surgery, University Hospital of South Manchester, Manchester M23 9LT, UK
| | - Matthew P Caley
- Disease Mechanisms Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
- Cell Biology and Cutaneous Research, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK
| | - Matthew A Peake
- Disease Mechanisms Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
- School of Biology, Natural and Environmental Sciences, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK
| | - Lindsay C Davies
- Disease Mechanisms Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Solnavägen 9, Biomedicum, 17165 Solna, Sweden
| | - Peter J Giles
- Division of Medical Genetics, School of Medicine, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XN, UK
| | - David W Thomas
- Advanced Therapies Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
| | - Phil Stephens
- Advanced Therapies Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
| | - Ryan Moseley
- Disease Mechanisms Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4XY, UK
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Rizzo G, Pineda Chavez SE, Vandenkoornhuyse E, Cárdenas Rincón CL, Cento V, Garlatti V, Wozny M, Sammarco G, Di Claudio A, Meanti L, Elangovan S, Romano A, Roda G, Loy L, Dal Buono A, Gabbiadini R, Lovisa S, Rusconi R, Repici A, Armuzzi A, Vetrano S. Pomegranate Extract Affects Gut Biofilm Forming Bacteria and Promotes Intestinal Mucosal Healing Regulating the Crosstalk between Epithelial Cells and Intestinal Fibroblasts. Nutrients 2023; 15:nu15071771. [PMID: 37049615 PMCID: PMC10097402 DOI: 10.3390/nu15071771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/27/2023] [Accepted: 04/03/2023] [Indexed: 04/08/2023] Open
Abstract
Background: Pomegranate (Punica granatum) can be used to prepare a bioactive extract exerting anti-inflammatory activities. Clinical studies demonstrated an improvement in clinical response in inflammatory bowel disease (IBD) patients when pomegranate extract (PG) was taken as a complement to standard medications. However, the molecular mechanisms underlying its beneficial effects are still scarcely investigated. This study investigates the effect of PG on bacterial biofilm formation and the promotion of mucosal wound healing. Methods: The acute colitis model was induced in C57BL/6N mice by 3% dextran sodium sulfate administration in drinking water for 5 days. During the recovery phase of colitis, mice received saline or PG (200 mg/kg body weight) by oral gavage for 11 days. Colitis was scored daily by evaluating body weight loss, bleeding, and stool consistency. In vivo intestinal permeability was evaluated by fluorescein isothiocyanate-conjugated dextran assay, bacterial translocation was assessed by fluorescence in situ hybridization on tissues, whereas epithelial and mucus integrity were monitored by immunostaining for JAM-A and MUC-2 markers. Bacterial biofilm formation was assessed using microfluidic devices for 24 or 48 h. Primary fibroblasts were isolated from healthy and inflamed areas of 8 IBD patients, and Caco-2 cells were stimulated with or without PG (5 μg/mL). Inflammatory mediators were measured at the mRNA and protein level by RT-PCR, WB, or Bio-plex multiplex immunoassay, respectively. Results: In vivo, PG boosted the recovery phase of colitis, promoting a complete restoration of the intestinal barrier with the regeneration of the mucus layer, as also demonstrated by the absence of bacterial spread into the mucosa and the enrichment of crypt-associated fibroblasts. Microfluidic experiments did not highlight a specific effect of PG on Enterobacterales biofilm formation, even though Citrobacter freundii biofilm was slightly impaired in the presence of PG. In vitro, inflamed fibroblasts responded to PG by downregulating the release of metalloproteinases, IL-6, and IL-8 and upregulating the levels of HGF. Caco-2 cells cultured in a medium supplemented with PG increased the expression of SOX-9 and CD44, whereas in the presence of HGF or plated with a fibroblast-conditioned medium, they displayed a decrease in SOX-9 and CD44 expression and an increase in AXIN2, a negative regulator of Wnt signaling. Conclusions: These data provide new insight into the manifold effects of PG on promoting mucosal homeostasis in IBD by affecting pathogen biofilm formation and favoring the regeneration of the intestinal barrier through the regulation of the crosstalk between epithelial and stromal cells.
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Affiliation(s)
- Giulia Rizzo
- Laboratory of Gastrointestinal Immunopathology, Department of Gastroenterology, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | | | - Elisa Vandenkoornhuyse
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20090 Milan, Italy
| | | | - Valeria Cento
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20090 Milan, Italy
- Unit of Microbiology and Virology, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | - Valentina Garlatti
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “Amedeo Avogadro”, Largo Guido Donegani, 28100 Novara, Italy
| | - Marek Wozny
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20090 Milan, Italy
| | - Giusy Sammarco
- Laboratory of Gastrointestinal Immunopathology, Department of Gastroenterology, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | - Alessia Di Claudio
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20090 Milan, Italy
| | - Lisa Meanti
- Laboratory of Gastrointestinal Immunopathology, Department of Gastroenterology, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | - Sudharshan Elangovan
- Wipro Life Sciences Lab, Wipro Limited, SJP2, Sarjapur Road, Bangalore 560035, Karnataka, India
| | - Andrea Romano
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20090 Milan, Italy
| | - Giulia Roda
- IBD Unit, Department of Gastroenterology, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | - Laura Loy
- IBD Unit, Department of Gastroenterology, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | - Arianna Dal Buono
- IBD Unit, Department of Gastroenterology, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | - Roberto Gabbiadini
- IBD Unit, Department of Gastroenterology, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | - Sara Lovisa
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20090 Milan, Italy
| | - Roberto Rusconi
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20090 Milan, Italy
| | - Alessandro Repici
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20090 Milan, Italy
- Digestive Endoscopy Unit, Department of Gastroenterology, Humanitas Clinical and Research Center-IRCCS, Rozzano, 20089 Milan, Italy
| | - Alessandro Armuzzi
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20090 Milan, Italy
- IBD Unit, Department of Gastroenterology, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | - Stefania Vetrano
- Laboratory of Gastrointestinal Immunopathology, Department of Gastroenterology, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20090 Milan, Italy
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9
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Li Q, Wang D, Jiang Z, Li R, Xue T, Lin C, Deng Y, Jin Y, Sun B. Advances of hydrogel combined with stem cells in promoting chronic wound healing. Front Chem 2022; 10:1038839. [PMID: 36518979 PMCID: PMC9742286 DOI: 10.3389/fchem.2022.1038839] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/07/2022] [Indexed: 08/15/2023] Open
Abstract
Wounds can be divided into two categories, acute and chronic. Acute wounds heal through the normal wound healing process. However, chronic wounds take longer to heal, leading to inflammation, pain, serious complications, and an economic burden of treatment costs. In addition, diabetes and burns are common causes of chronic wounds that are difficult to treat. The rapid and thorough treatment of chronic wounds, including diabetes wounds and burns, represents a significant unmet medical need. Wound dressings play an essential role in chronic wound treatment. Various biomaterials for wound healing have been developed. Among these, hydrogels are widely used as wound care materials due to their good biocompatibility, moisturizing effect, adhesion, and ductility. Wound healing is a complex process influenced by multiple factors and regulatory mechanisms in which stem cells play an important role. With the deepening of stem cell and regenerative medicine research, chronic wound treatment using stem cells has become an important field in medical research. More importantly, the combination of stem cells and stem cell derivatives with hydrogel is an attractive research topic in hydrogel preparation that offers great potential in chronic wound treatment. This review will illustrate the development and application of advanced stem cell therapy-based hydrogels in chronic wound healing, especially in diabetic wounds and burns.
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Affiliation(s)
- Qirong Li
- Department of Hepatobiliary and Pancreas Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Dongxu Wang
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Ziping Jiang
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Rong Li
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Tianyi Xue
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Chao Lin
- School of Grain Science and Technology, Jilin Business and Technology College, Changchun, China
| | - Yongzhi Deng
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Ye Jin
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Baozhen Sun
- Department of Hepatobiliary and Pancreas Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
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10
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Sabol TJ, Tran GS, Matuszewski J, Weston WW. Standardized reporting of amnion and amnion/chorion allograft data for wound care. Health Sci Rep 2022; 5:e794. [PMID: 36032519 PMCID: PMC9399452 DOI: 10.1002/hsr2.794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 07/14/2022] [Accepted: 08/01/2022] [Indexed: 11/22/2022] Open
Abstract
Background The favorable biological and mechanical properties of the most common components of the placenta, the amnion and chorion, have been explored for regenerative medical indications. The use of the combination of amnion and chorion has also become very popular. But, published data from placental tissues in their final, useable form is lacking. During treatment with membrane product, the tissue is usually sterile, intact and laid on a wound or treatment area. The factors available to the treatment area from the applied product need to be elucidated and presented in a relatable form. Current reporting for eluted growth factor results are typically expressed per milliliter, which is not informative with respect to the area of tissue covered by the actual membrane and may differ among techniques. Methods To address this inconsistency, amnion or amnion/chorion were isolated from human placentas and processed by a proprietary procedure. The final dry, sterilized product was evaluated for structural components and growth factor elution. Growth factors were quantified by multiplex panels and ELISAs and the values normalized to specific area and elution volume of finished product. This information allows extrapolation to all membrane sizes and affords cross‐study comparisons. Results Analysis of membrane supernatants show that dehydrated, sterilized amnion and amnion/chorion elute factors that are conducive to wound healing, which are available to recipient tissues. Importantly, these measurable factors eluted from dehydrated, sterilized membranes can be reported as a function of available factors per square centimeter of tissue. Conclusions The standardized characterization of dehydrated, sterilized amnion and amnion/chorion as delivered to recipient tissues permits understanding and comparison of the products across various graft sizes, types, and eluate volumes. Further, reporting this data as a function of cm2 of dehydrated tissue allows extrapolation by independent scientists and clinicians.
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11
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Knight R, Board-Davies E, Brown H, Clayton A, Davis T, Karatas B, Burston J, Tabi Z, Falcon-Perez JM, Paisey S, Stephens P. Oral Progenitor Cell Line-Derived Small Extracellular Vesicles as a Treatment for Preferential Wound Healing Outcome. Stem Cells Transl Med 2022; 11:861-875. [PMID: 35716044 PMCID: PMC9397654 DOI: 10.1093/stcltm/szac037] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 04/28/2022] [Indexed: 12/11/2022] Open
Abstract
Scar formation during wound repair can be devastating for affected individuals. Our group previously documented the therapeutic potential of novel progenitor cell populations from the non-scarring buccal mucosa. These Oral Mucosa Lamina Propria-Progenitor Cells (OMLP-PCs) are multipotent, immunosuppressive, and antibacterial. Small extracellular vesicles (sEVs) may play important roles in stem cell-mediated repair in varied settings; hence, we investigated sEVs from this source for wound repair. We created an hTERT immortalized OMLP-PC line (OMLP-PCL) and confirmed retention of morphology, lineage plasticity, surface markers, and functional properties. sEVs isolated from OMLP-PCL were analyzed by nanoparticle tracking analysis, Cryo-EM and flow cytometry. Compared to bone marrow-derived mesenchymal stromal cells (BM-MSC) sEVs, OMLP-PCL sEVs were more potent at driving wound healing functions, including cell proliferation and wound repopulation and downregulated myofibroblast formation. A reduced scarring potential was further demonstrated in a preclinical in vivo model. Manipulation of OMLP-PCL sEVs may provide novel options for non-scarring wound healing in clinical settings.
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Affiliation(s)
- Rob Knight
- Regenerative Biology Group, Oral and Biomedical Sciences, School of Dentistry, Cardiff University, Cardiff, Wales, UK,Cardiff Institute of Tissue Engineering and Repair, Cardiff University, Cardiff, Wales, UK,PETIC, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | - Emma Board-Davies
- Regenerative Biology Group, Oral and Biomedical Sciences, School of Dentistry, Cardiff University, Cardiff, Wales, UK,Cardiff Institute of Tissue Engineering and Repair, Cardiff University, Cardiff, Wales, UK
| | - Helen Brown
- Regenerative Biology Group, Oral and Biomedical Sciences, School of Dentistry, Cardiff University, Cardiff, Wales, UK,Cardiff Institute of Tissue Engineering and Repair, Cardiff University, Cardiff, Wales, UK
| | - Aled Clayton
- Cardiff Institute of Tissue Engineering and Repair, Cardiff University, Cardiff, Wales, UK,Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | - Terence Davis
- PETIC, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | - Ben Karatas
- Cardiff Institute of Tissue Engineering and Repair, Cardiff University, Cardiff, Wales, UK,Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | - James Burston
- Cardiff Institute of Tissue Engineering and Repair, Cardiff University, Cardiff, Wales, UK,Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff, Wales, UK,Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | - Zsuzsanna Tabi
- PETIC, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | - Juan M Falcon-Perez
- Exosomes Laboratory, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio, Bizkaia, Spain,Centro de Investigación Biomédica en Red de enfermedades hepáticas y digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain,IKERBASQUE, Basque Foundation for Science, Bilbao, Bizkaia, Spain
| | - Stephen Paisey
- Cardiff Institute of Tissue Engineering and Repair, Cardiff University, Cardiff, Wales, UK,PETIC, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | - Phil Stephens
- Corresponding author: Phil Stephens, Regenerative Biology Group, Oral and Biomedical Sciences, School of Dentistry, Cardiff University, Cardiff, CF14 4XY, Wales, UK.
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12
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Moretti L, Stalfort J, Barker TH, Abebayehu D. The interplay of fibroblasts, the extracellular matrix, and inflammation in scar formation. J Biol Chem 2022; 298:101530. [PMID: 34953859 PMCID: PMC8784641 DOI: 10.1016/j.jbc.2021.101530] [Citation(s) in RCA: 125] [Impact Index Per Article: 62.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 12/08/2021] [Indexed: 02/06/2023] Open
Abstract
Various forms of fibrosis, comprising tissue thickening and scarring, are involved in 40% of deaths across the world. Since the discovery of scarless functional healing in fetuses prior to a certain stage of development, scientists have attempted to replicate scarless wound healing in adults with little success. While the extracellular matrix (ECM), fibroblasts, and inflammatory mediators have been historically investigated as separate branches of biology, it has become increasingly necessary to consider them as parts of a complex and tightly regulated system that becomes dysregulated in fibrosis. With this new paradigm, revisiting fetal scarless wound healing provides a unique opportunity to better understand how this highly regulated system operates mechanistically. In the following review, we navigate the four stages of wound healing (hemostasis, inflammation, repair, and remodeling) against the backdrop of adult versus fetal wound healing, while also exploring the relationships between the ECM, effector cells, and signaling molecules. We conclude by singling out recent findings that offer promising leads to alter the dynamics between the ECM, fibroblasts, and inflammation to promote scarless healing. One factor that promises to be significant is fibroblast heterogeneity and how certain fibroblast subpopulations might be predisposed to scarless healing. Altogether, reconsidering fetal wound healing by examining the interplay of the various factors contributing to fibrosis provides new research directions that will hopefully help us better understand and address fibroproliferative diseases, such as idiopathic pulmonary fibrosis, liver cirrhosis, systemic sclerosis, progressive kidney disease, and cardiovascular fibrosis.
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Affiliation(s)
- Leandro Moretti
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA
| | - Jack Stalfort
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA
| | - Thomas Harrison Barker
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA
| | - Daniel Abebayehu
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA.
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13
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Wang X, Yan L, Tang Y, He X, Zhao X, Liu W, Wu Z, Luo G. Anti-inflammatory effect of HGF responses to oral traumatic ulcers using an HGF-Tg mouse model. Exp Anim 2021; 71:204-213. [PMID: 34819402 PMCID: PMC9130041 DOI: 10.1538/expanim.21-0141] [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] [Indexed: 12/03/2022] Open
Abstract
Hepatocyte growth factor (HGF) has been implicated in inhibiting diverse types of inflammation. Oral traumatic ulceration (OTU) is a common disease of the oral mucosa, and inflammation is
the main process for ulcer healing. This study aimed to explore the expression of HGF in oral ulcers and its role in ulcer inflammation. The saliva of 14 recurrent alphous stomatitis (RAS)
patients, 18 OTU patients and 17 healthy controls was collected. Traumatic ulcers of the left mucosa were observed in 42 wild-type (WT) and 42 HGF-overexpressing transgenic (HGF-Tg) mice.
Histological scores, inflammatory cell expression and serum cytokine expression were measured and analyzed on the 5th day. The HGF protein level in ulcer-affected human saliva was 9.3-fold
higher than that in healthy saliva. The HGF protein levels in RAS and OTU saliva were 14- and 5.7-fold higher, respectively, than those in healthy saliva. Traumatic ulcers enhanced HGF
expression in ulcer-affected oral mucosa and in the blood of C57BL/6 mice by 1.21- and 1.40-fold, respectively. In HGF-Tg mouse traumatic ulcers, HGF expression was 1.34-fold higher than
that in wild-type mice. HGF-Tg mice had lower weight loss, less ulcer area and lower histopathology scores than WT mice. The results from immunohistochemistry, flow cytometry and serum
cytokine analysis showed that HGF-Tg animals presented fewer Ly6G-positive neutrophils and higher levels of circulating inflammatory cytokines. HGF overexpression alleviated weight loss,
ulcer area and inflammation, suggesting the role of HGF in promoting the healing of oral ulcers.
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Affiliation(s)
- Xinhong Wang
- Department of Oral Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research in Oral Regenerative Medicine
| | - Liting Yan
- Department of Oral Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research in Oral Regenerative Medicine.,Wuxi Stomatology Hospital
| | - Yinghua Tang
- Department of Oral Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research in Oral Regenerative Medicine
| | - Xiaoxi He
- Department of Oral Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research in Oral Regenerative Medicine
| | - Xiaomin Zhao
- Department of Oral Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research in Oral Regenerative Medicine
| | - Weijia Liu
- Department of Oral Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research in Oral Regenerative Medicine
| | - Zhicong Wu
- Department of Oral Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research in Oral Regenerative Medicine
| | - Gang Luo
- Department of Oral Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research in Oral Regenerative Medicine
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14
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Zainal Abidin SAI, Paterson IC, Hunt S, Lambert DW, Higginbotham S, Pink RC. Myofibroblast transdifferentiation is associated with changes in cellular and extracellular vesicle miRNA abundance. PLoS One 2021; 16:e0256812. [PMID: 34762649 PMCID: PMC8584782 DOI: 10.1371/journal.pone.0256812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 08/17/2021] [Indexed: 11/18/2022] Open
Abstract
Transforming growth factor-beta 1 (TGF-β1), a pro-fibrotic tumour-derived factor promotes fibroblast differentiation in the tumour microenvironment and is thought to contribute to the development of pro-tumourigenic cancer-associated fibroblasts (CAFs) by promoting myofibroblast differentiation. miRNA dysregulation has been demonstrated in myofibroblast transdifferentiation and CAF activation, however, their expression varies among cell types and with the method of fibroblast induction. Here, the expression profile of miRNA in human primary oral fibroblasts treated with TGF-β1, to derive a myofibroblastic, CAF-like phenotype, was determined compared to untreated fibroblasts. Myofibroblast transdifferentiation was determined by the expression of alpha-smooth muscle actin (α-SMA) and fibronectin-1 extra domain A (FN-EDA1) using quantitative real-time PCR (qRT-PCR) and western blot. The formation of stress fibres was assessed by fluorescence microscopy, and associated changes in contractility were assessed using collagen contraction assays. Extracellular vesicles (EVs) were purified by using size exclusion chromatography and ultracentrifugation and their size and concentration were determined by nanoparticle tracking analysis. miRNA expression profiling in oral fibroblasts treated with TGF-β1 and their extracellular vesicles was carried out using tiling low-density array cards. The Database for Annotation, Visualization, and Integrated Discovery (DAVID) was used to perform functional and pathway enrichment analysis of target genes. In this study, TGF-β1 induced a myofibroblastic phenotype in normal oral fibroblasts as assessed by expression of molecular markers, the formation of stress fibres and increased contractility. TaqMan Low-Density Array (TLDA) analysis demonstrated that miR-503 and miR-708 were significantly upregulated, while miR-1276 was significantly downregulated in TGF-β1-treated oral fibroblasts (henceforth termed experimentally-derived CAF, eCAF). The gene functional enrichment analysis showed that the candidate miRNAs have the potential to modulate various pathways; including the Ras associated protein 1 (Rap1), PI3K-Akt, and tumour necrosis factor (TNF) signalling pathways. In addition, altered levels of several miRNAs were detected in eCAF EV, including miR-142 and miR-222. No differences in size or abundance of EV were detected between eCAF and normal oral fibroblast (NOF). Little overlap was observed between changes in cellular and EV miRNA profiles, suggesting the possibility of selective loading of EV miRNA. The study reveals miRNA expression signature could be involved in myofibroblast transdifferentiation and the miRNA cargo of their EV, providing novel insight into the involvement of miRNA in CAF development and function.
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Affiliation(s)
- Siti Amalina Inche Zainal Abidin
- Department of Oral and Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
- Oral Cancer Research & Coordinating Center, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
- Integrated Biosciences, School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
- * E-mail:
| | - Ian Charles Paterson
- Department of Oral and Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
- Oral Cancer Research & Coordinating Center, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Stuart Hunt
- Integrated Biosciences, School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
| | - Daniel W. Lambert
- Integrated Biosciences, School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
| | - Samuel Higginbotham
- Integrated Biosciences, School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
- Kroto Research Institute, University of Sheffield, Sheffield, United Kingdom
| | - Ryan Charles Pink
- Department of Biological and Medical Science, Faculty of Health and Life Sciences, Oxford Brookes University, Oxford, United Kingdom
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15
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Sharma S, Madhyastha H, Laxmi Swetha K, Maravajjala KS, Singh A, Madhyastha R, Nakajima Y, Roy A. Development of an in-situ forming, self-healing scaffold for dermal wound healing: in-vitro and in-vivo studies. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112263. [PMID: 34474822 DOI: 10.1016/j.msec.2021.112263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/06/2021] [Accepted: 06/13/2021] [Indexed: 12/11/2022]
Abstract
The importance of the extra-cellular matrix (ECM) for wound healing has been extensively researched. Understanding its importance, multiple ECM mimetic scaffolds have been developed. However, the majority of such scaffolds are prefabricated. Due to their stiffness, prefabricated scaffolds cannot come into direct contact with the basal skin cells at the wound bed, limiting their efficacy. We have developed a unique wound dressing, using chitosan (CH) and chondroitin sulfate (CS), that can form a porous scaffold (CH-CS PEC) in-situ, at the wound site, by simple mixing of the polymer solutions. As CH is positively and CS is negatively charged, mixing these two polymer solutions would lead to electrostatic cross-linking between the polymers, converting them to a porous, viscoelastic scaffold. Owing to the in-situ formation, the scaffold can come in direct contact with the cells at the wound bed, supporting their proliferation and biofunction. In the present study, we confirmed the cross-linked scaffold formation by solid-state NMR, XRD, and TGA analysis. We have demonstrated that the scaffold had a high viscoelastic property, with self-healing capability. Both keratinocyte and fibroblast cells exhibited significantly increased migration and functional markers expression when grown on this scaffold. In the rat skin-excisional wound model, treatment with the in-situ forming CH-CS PEC exhibited enhanced wound healing efficacy. Altogether, this study demonstrated that mixing CH and CS solutions lead to the spontaneous formation of a highly viscoelastic, porous scaffold, which can support epidermal and dermal cell proliferation and bio-function, with an enhanced in-vivo wound healing efficacy.
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Affiliation(s)
- Swati Sharma
- Department of Pharmacy, Birla Institute of Technology & Science, Pilani, Vidya Vihar, Rajasthan 333031, India
| | - Harishkumar Madhyastha
- Department of Applied Physiology, Faculty of Medicine, University of Miyazaki, 8891692 Miyazaki, Japan.
| | - K Laxmi Swetha
- Department of Pharmacy, Birla Institute of Technology & Science, Pilani, Vidya Vihar, Rajasthan 333031, India
| | - Kavya Sree Maravajjala
- Department of Pharmacy, Birla Institute of Technology & Science, Pilani, Vidya Vihar, Rajasthan 333031, India
| | - Archana Singh
- CSIR Institute of Genomics and Integrative Biology (IGIB), New Delhi 110025, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Radha Madhyastha
- Department of Applied Physiology, Faculty of Medicine, University of Miyazaki, 8891692 Miyazaki, Japan
| | - Yuichi Nakajima
- Department of Applied Physiology, Faculty of Medicine, University of Miyazaki, 8891692 Miyazaki, Japan
| | - Aniruddha Roy
- Department of Pharmacy, Birla Institute of Technology & Science, Pilani, Vidya Vihar, Rajasthan 333031, India.
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16
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Pereira D, Sequeira I. A Scarless Healing Tale: Comparing Homeostasis and Wound Healing of Oral Mucosa With Skin and Oesophagus. Front Cell Dev Biol 2021; 9:682143. [PMID: 34381771 PMCID: PMC8350526 DOI: 10.3389/fcell.2021.682143] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 06/24/2021] [Indexed: 12/14/2022] Open
Abstract
Epithelial tissues are the most rapidly dividing tissues in the body, holding a natural ability for renewal and regeneration. This ability is crucial for survival as epithelia are essential to provide the ultimate barrier against the external environment, protecting the underlying tissues. Tissue stem and progenitor cells are responsible for self-renewal and repair during homeostasis and following injury. Upon wounding, epithelial tissues undergo different phases of haemostasis, inflammation, proliferation and remodelling, often resulting in fibrosis and scarring. In this review, we explore the phenotypic differences between the skin, the oesophagus and the oral mucosa. We discuss the plasticity of these epithelial stem cells and contribution of different fibroblast subpopulations for tissue regeneration and wound healing. While these epithelial tissues share global mechanisms of stem cell behaviour for tissue renewal and regeneration, the oral mucosa is known for its outstanding healing potential with minimal scarring. We aim to provide an updated review of recent studies that combined cell therapy with bioengineering exporting the unique scarless properties of the oral mucosa to improve skin and oesophageal wound healing and to reduce fibrotic tissue formation. These advances open new avenues toward the ultimate goal of achieving scarless wound healing.
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Affiliation(s)
| | - Inês Sequeira
- Institute of Dentistry, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
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17
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Myofibroblasts: Function, Formation, and Scope of Molecular Therapies for Skin Fibrosis. Biomolecules 2021; 11:biom11081095. [PMID: 34439762 PMCID: PMC8391320 DOI: 10.3390/biom11081095] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 07/16/2021] [Accepted: 07/20/2021] [Indexed: 12/11/2022] Open
Abstract
Myofibroblasts are contractile, α-smooth muscle actin-positive cells with multiple roles in pathophysiological processes. Myofibroblasts mediate wound contractions, but their persistent presence in tissues is central to driving fibrosis, making them attractive cell targets for the development of therapeutic treatments. However, due to shared cellular markers with several other phenotypes, the specific targeting of myofibroblasts has long presented a scientific and clinical challenge. In recent years, myofibroblasts have drawn much attention among scientific research communities from multiple disciplines and specialisations. As further research uncovers the characterisations of myofibroblast formation, function, and regulation, the realisation of novel interventional routes for myofibroblasts within pathologies has emerged. The research community is approaching the means to finally target these cells, to prevent fibrosis, accelerate scarless wound healing, and attenuate associated disease-processes in clinical settings. This comprehensive review article describes the myofibroblast cell phenotype, their origins, and their diverse physiological and pathological functionality. Special attention has been given to mechanisms and molecular pathways governing myofibroblast differentiation, and updates in molecular interventions.
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18
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Zhang L, Yan H, Tai Y, Xue Y, Wei Y, Wang K, Zhao Q, Wang S, Kong D, Midgley AC. Design and Evaluation of a Polypeptide that Mimics the Integrin Binding Site for EDA Fibronectin to Block Profibrotic Cell Activity. Int J Mol Sci 2021; 22:ijms22041575. [PMID: 33557232 PMCID: PMC7913925 DOI: 10.3390/ijms22041575] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/18/2021] [Accepted: 02/01/2021] [Indexed: 02/07/2023] Open
Abstract
Fibrosis is characterized by excessive production of disorganized collagen- and fibronectin-rich extracellular matrices (ECMs) and is driven by the persistence of myofibroblasts within tissues. A key protein contributing to myofibroblast differentiation is extra domain A fibronectin (EDA-FN). We sought to target and interfere with interactions between EDA-FN and its integrin receptors to effectively inhibit profibrotic activity and myofibroblast formation. Molecular docking was used to assist in the design of a blocking polypeptide (antifibrotic 38-amino-acid polypeptide, AF38Pep) for specific inhibition of EDA-FN associations with the fibroblast-expressed integrins α4β1 and α4β7. Blocking peptides were designed and evaluated in silico before synthesis, confirmation of binding specificity, and evaluation in vitro. We identified the high-affinity EDA-FN C-C′ loop binding cleft within integrins α4β1 and α4β7. The polypeptide with the highest predicted binding affinity, AF38Pep, was synthesized and could achieve specific binding to myofibroblast fibronectin-rich ECM and EDA-FN C-C′ loop peptides. AF38Pep demonstrated potent myofibroblast inhibitory activity at 10 µg/mL and was not cytotoxic. Treatment with AF38Pep prevented integrin α4β1-mediated focal adhesion kinase (FAK) activation and early signaling through extracellular-signal-regulated kinases 1 and 2 (ERK1/2), attenuated the expression of pro-matrix metalloproteinase 9 (MMP9) and pro-MMP2, and inhibited collagen synthesis and deposition. Immunocytochemistry staining revealed an inhibition of α-smooth muscle actin (α-SMA) incorporation into actin stress fibers and attenuated cell contraction. Increases in the expression of mRNA associated with fibrosis and downstream from integrin signaling were inhibited by treatment with AF38Pep. Our study suggested that AF38Pep could successfully interfere with EDA-FN C-C′ loop-specific integrin interactions and could act as an effective inhibitor of fibroblast of myofibroblast differentiation.
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Affiliation(s)
- Lin Zhang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.Z.); (H.Y.); (Y.T.); (Y.X.); (Y.W.); (K.W.); (Q.Z.); (D.K.)
| | - Hongyu Yan
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.Z.); (H.Y.); (Y.T.); (Y.X.); (Y.W.); (K.W.); (Q.Z.); (D.K.)
| | - Yifan Tai
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.Z.); (H.Y.); (Y.T.); (Y.X.); (Y.W.); (K.W.); (Q.Z.); (D.K.)
| | - Yueming Xue
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.Z.); (H.Y.); (Y.T.); (Y.X.); (Y.W.); (K.W.); (Q.Z.); (D.K.)
| | - Yongzhen Wei
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.Z.); (H.Y.); (Y.T.); (Y.X.); (Y.W.); (K.W.); (Q.Z.); (D.K.)
| | - Kai Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.Z.); (H.Y.); (Y.T.); (Y.X.); (Y.W.); (K.W.); (Q.Z.); (D.K.)
| | - Qiang Zhao
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.Z.); (H.Y.); (Y.T.); (Y.X.); (Y.W.); (K.W.); (Q.Z.); (D.K.)
| | - Shufang Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.Z.); (H.Y.); (Y.T.); (Y.X.); (Y.W.); (K.W.); (Q.Z.); (D.K.)
- Correspondence: (S.W.); (A.C.M.); Tel.: +86-1562-004-7851 (A.C.M.)
| | - Deling Kong
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.Z.); (H.Y.); (Y.T.); (Y.X.); (Y.W.); (K.W.); (Q.Z.); (D.K.)
- Rongxiang Xu Center for Regenerative Life Science, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Adam C. Midgley
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.Z.); (H.Y.); (Y.T.); (Y.X.); (Y.W.); (K.W.); (Q.Z.); (D.K.)
- Rongxiang Xu Center for Regenerative Life Science, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
- Correspondence: (S.W.); (A.C.M.); Tel.: +86-1562-004-7851 (A.C.M.)
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Alfonso García SL, Parada-Sanchez MT, Arboleda Toro D. The phenotype of gingival fibroblasts and their potential use in advanced therapies. Eur J Cell Biol 2020; 99:151123. [PMID: 33070040 DOI: 10.1016/j.ejcb.2020.151123] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 08/13/2020] [Accepted: 08/15/2020] [Indexed: 02/06/2023] Open
Abstract
Advanced therapies in medicine use stem cells, gene editing, and tissues to treat a wide range of conditions. One of their goals is to stimulate endogenous repair of tissues and organs by manipulating stem cells and their niche, as well as to optimize the intrinsic characteristics and plasticity of differentiated cells in adult tissues. In this context, fibroblasts emerge as an alternative source to stem cells because they share phenotypic and regenerative characteristics. Specifically, fibroblasts of the oral mucosae have been shown to have improved regenerative capacity compared to other fibroblast populations. Additionally, their easy access by means of minimally invasive procedures without generating aesthetic problems, with easy and rapid in vitro expansion and with great capacity to respond to extrinsic factors, make oral fibroblasts an attractive and interesting resource for regenerative medicine. This review summarizes current concepts regarding the phenotypic and functional aspects of human Gingival Fibroblasts and their niche, differentiating them from other fibroblast populations of oral-lining mucosa and skin fibroblasts. Furthermore, some applications are presented in regenerative medicine, emphasizing on the biological potential of human Gingival Fibroblasts.
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Affiliation(s)
- Sandra Liliana Alfonso García
- Department of Integrated Basic Studies, Faculty of Dentistry, Universidad de Antioquia, Medellín, 050010, Colombia; Department of Oral Health, Faculty of Dentistry, Universidad Nacional de Colombia, Bogotá, 111311, Colombia.
| | | | - David Arboleda Toro
- Department of Integrated Basic Studies, Faculty of Dentistry, Universidad de Antioquia, Medellín, 050010, Colombia
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20
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Midgley AC, Wei Y, Zhu D, Gao F, Yan H, Khalique A, Luo W, Jiang H, Liu X, Guo J, Zhang C, Feng G, Wang K, Bai X, Ning W, Yang C, Zhao Q, Kong D. Multifunctional Natural Polymer Nanoparticles as Antifibrotic Gene Carriers for CKD Therapy. J Am Soc Nephrol 2020; 31:2292-2311. [PMID: 32769144 DOI: 10.1681/asn.2019111160] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 05/27/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Progressive fibrosis is the underlying pathophysiological process of CKD, and targeted prevention or reversal of the profibrotic cell phenotype is an important goal in developing therapeutics for CKD. Nanoparticles offer new ways to deliver antifibrotic therapies to damaged tissues and resident cells to limit manifestation of the profibrotic phenotype. METHODS We focused on delivering plasmid DNA expressing bone morphogenetic protein 7 (BMP7) or hepatocyte growth factor (HGF)-NK1 (HGF/NK1) by encapsulation within chitosan nanoparticles coated with hyaluronan, to safely administer multifunctional nanoparticles containing the plasmid DNA to the kidneys for localized and sustained expression of antifibrotic factors. We characterized and evaluated nanoparticles in vitro for biocompatibility and antifibrotic function. To assess antifibrotic activity in vivo, we used noninvasive delivery to unilateral ureteral obstruction mouse models of CKD. RESULTS Synthesis of hyaluronan-coated chitosan nanoparticles containing plasmid DNA expressing either BMP7 or NGF/NKI resulted in consistently sized nanoparticles, which-following endocytosis driven by CD44+ cells-promoted cellular growth and inhibited fibrotic gene expression in vitro. Intravenous tail injection of these nanoparticles resulted in approximately 40%-45% of gene uptake in kidneys in vivo. The nanoparticles attenuated the development of fibrosis and rescued renal function in unilateral ureteral obstruction mouse models of CKD. Gene delivery of BMP7 reversed the progression of fibrosis and regenerated tubules, whereas delivery of HGF/NK1 halted CKD progression by eliminating collagen fiber deposition. CONCLUSIONS Nanoparticle delivery of HGF/NK1 conveyed potent antifibrotic and proregenerative effects. Overall, this research provided the proof of concept on which to base future investigations for enhanced targeting and transfection of therapeutic genes to kidney tissues, and an avenue toward treatment of CKD.
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Affiliation(s)
- Adam C Midgley
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China .,Rongxiang Xu Center for Regenerative Life Science, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Yongzhen Wei
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Dashuai Zhu
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Fangli Gao
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China.,Rongxiang Xu Center for Regenerative Life Science, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Hongyu Yan
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Anila Khalique
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China.,Rongxiang Xu Center for Regenerative Life Science, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Wenya Luo
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China.,Rongxiang Xu Center for Regenerative Life Science, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Huan Jiang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Xiangsheng Liu
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China.,Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Jiasen Guo
- Department of Genetics and Cellular Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Chuangnian Zhang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Guowei Feng
- Department of Genitourinary Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Kai Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Xueyuan Bai
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, Beijing, China.,State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Wen Ning
- Department of Genetics and Cellular Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Chao Yang
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Qiang Zhao
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Deling Kong
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China .,Rongxiang Xu Center for Regenerative Life Science, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China.,Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
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de Oliveira RC, Murillo S, Saikia P, Wilson SE. The Efficacy of Topical HGF on Corneal Fibrosis and Epithelial Healing after Scar-Producing PRK Injury in Rabbits. Transl Vis Sci Technol 2020; 9:29. [PMID: 32818116 PMCID: PMC7396189 DOI: 10.1167/tvst.9.4.29] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 01/14/2020] [Indexed: 01/18/2023] Open
Abstract
Purpose To determine the effect of topical hepatocyte growth factor (HGF) on myofibroblast development and corneal opacity after fibrosis-producing photorefractive keratectomy (PRK). Methods Twelve New Zealand rabbits had transepithelial PRK. Six rabbits received topical recombinant human HGF (rhHGF) (50 µL of 0.1 mg/mL) 3 times a day for 1 week beginning 6 hours prior surgery and until full closure of the epithelium, and 6 control rabbits received vehicle by the same schedule. Slit lamp photos were taken immediately and at 43 to 45 hours after surgery to determine the rate of epithelial healing. Slit lamp photographs and immunohistochemistry for α-smooth muscle actin were analyzed at 1 month in masked fashion. Results The rhHGF group tended to have slower re-epithelization when compared with the controls, but no statistically significant difference was noted (P = 0.62). There was no significant difference in the density of myofibroblasts in the central stroma (P = 0.49) or corneal opacity (P = 0.84) between the HGF and control groups at 1 month after PRK. Conclusions Topical rhHGF applied three times a day during the early postoperative period prior to epithelial closure did not significantly change the corneal epithelial healing rate, myofibroblast density, or opacity compared with vehicle after transepithelial -9.0 D PRK injury of the central cornea in rabbits. Translational Relevance HGF has been reported to decrease myofibroblast generation and fibrosis in many organs, but topical HGF applied to the cornea until epithelial healing had no effect on scarring fibrosis in rabbit corneas.
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Affiliation(s)
| | - Sofia Murillo
- The Cole Eye Institute, The Cleveland Clinic, Cleveland, OH, USA
| | | | - Steven E. Wilson
- The Cole Eye Institute, The Cleveland Clinic, Cleveland, OH, USA
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22
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Wang L, Zhao Y, Yang F, Feng M, Zhao Y, Chen X, Mi J, Yao Y, Guan D, Xiao Z, Chen B, Dai J. Biomimetic collagen biomaterial induces in situ lung regeneration by forming functional alveolar. Biomaterials 2020; 236:119825. [PMID: 32044576 DOI: 10.1016/j.biomaterials.2020.119825] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/07/2020] [Accepted: 01/25/2020] [Indexed: 01/02/2023]
Abstract
In situ restoration of severely damaged lung remains difficult due to its limited regeneration capacity after injury. Artificial lung scaffolds are emerging as potential substitutes, but it is still a challenge to reconstruct lung regeneration microenvironment in scaffold after lung resection injury. Here, a 3D biomimetic porous collagen scaffold with similar structure characteristics as lung is fabricated, and a novel collagen binding hepatocyte growth factor (CBD-HGF) is tethered on the collagen scaffold for maintaining the biomimetic function of HGF to improve the lung regeneration microenvironment. The biomimetic scaffold was implanted into the operative region of a rat partial lung resection model. The results revealed that vascular endothelial cells and endogenous alveolar stem cells entered the scaffold at the early stage of regeneration. At the later stage, inflammation and fibrosis were attenuated, the microvascular and functional alveolar-like structures were formed, and the general morphology of the injured lung was restored. Taken together, the functional 3D biomimetic collagen scaffold facilitates recovery of the injured lung, alveolar regeneration, and angiogenesis after acute lung injury. Particularly, this is the first study of lung regeneration in vivo guided by biomimetic collagen scaffold materials, which supports the concept that tissue engineering is an effective strategy for alveolar regeneration.
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Affiliation(s)
- Linjie Wang
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Yannan Zhao
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China; State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Feng Yang
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Meng Feng
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Yazhen Zhao
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Xi Chen
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Junwei Mi
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Yuanjiang Yao
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Dongwei Guan
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Zhifeng Xiao
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China; State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Bing Chen
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China; State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Jianwu Dai
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China; State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.
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Richards CD, Botelho F. Oncostatin M in the Regulation of Connective Tissue Cells and Macrophages in Pulmonary Disease. Biomedicines 2019; 7:E95. [PMID: 31817403 PMCID: PMC6966661 DOI: 10.3390/biomedicines7040095] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/23/2019] [Accepted: 11/26/2019] [Indexed: 12/16/2022] Open
Abstract
Oncostatin M (OSM), as one of the gp130/IL-6 family of cytokines, interacts with receptor complexes that include the gp130 signaling molecule and OSM receptor β OSMRβ chain subunits. OSMRβ chains are expressed relatively highly across a broad array of connective tissue (CT) cells of the lung, such as fibroblasts, smooth muscle cells, and epithelial cells, thus enabling robust responses to OSM, compared to other gp130 cytokines, in the regulation of extracellular matrix (ECM) remodeling and inflammation. OSMRβ chain expression in lung monocyte/macrophage populations is low, whereas other receptor subunits, such as that for IL-6, are present, enabling responses to IL-6. OSM is produced by macrophages and neutrophils, but not CT cells, indicating a dichotomy of OSM roles in macrophage verses CT cells in lung inflammatory disease. ECM remodeling and inflammation are components of a number of chronic lung diseases that show elevated levels of OSM. OSM-induced products of CT cells, such as MCP-1, IL-6, and PGE2 can modulate macrophage function, including the expression of OSM itself, indicating feedback loops that characterize Macrophage and CT cell interaction.
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Affiliation(s)
- Carl D. Richards
- McMaster Immunology Research Centre, Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON L8S 3Z5, Canada;
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Lou Q, Li Y, Hou B, Liu Y, Zhang Y, Hao J, Ma Y. Heat shock transcription factor 1 affects kidney tubular cell migration by regulating the TGF‑β1‑Smad2/3 signaling pathway. Mol Med Rep 2019; 20:4323-4330. [PMID: 31545442 DOI: 10.3892/mmr.2019.10689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 08/23/2019] [Indexed: 11/06/2022] Open
Abstract
Cell migration is important for renal recovery from tubular cell injury. Heat shock transcription factor 1 (HSF1) is a well‑studied regulatory factor that is active during acute kidney injury. HSF1 is also involved in the migration process during tumor metastasis. Therefore, we hypothesized that HSF1 may promote the recovery of renal function by affecting kidney tubular cell migration. A wound healing assay was used to examine the cell migration rate. The results demonstrated that the migration of rat kidney proximal tubular cells (RPTCs) was increased following knockdown of HSF1. In addition, the invasion ability of HSF1 knockdown RPTCs was also significantly upregulated. The present study also identified that transforming growth factor‑β1 (TGF‑β1) was highly expressed at the edge of the wound in control cells, and its expression was further increased upon knockdown of HSF1. Inhibition of TGF‑β1 signaling prevented RPTC HSF1 knockdown cell migration, suggesting that HSF1‑regulated RPTC cell migration was dependent on the TGF‑β1 signaling pathway. Furthermore, phosphorylation of TGF‑β1 and Smad2/3 was induced in HSF1 knockdown cells. Together, these results suggest that HSF1 may suppress RPTC migration by inhibiting the activation of the TGF‑β1‑Smad2/3 signaling pathway.
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Affiliation(s)
- Qiang Lou
- Joint National Laboratory for Antibody Drug Engineering, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Yuanyuan Li
- Joint National Laboratory for Antibody Drug Engineering, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Beibei Hou
- International Office of Henan University, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Yonglian Liu
- Joint National Laboratory for Antibody Drug Engineering, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Yan Zhang
- Joint National Laboratory for Antibody Drug Engineering, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Jielu Hao
- Department of Nephrology, Changzheng Hospital Affiliated to Second Military Medical University, Shanghai 200003, P.R. China
| | - Yuanfang Ma
- Joint National Laboratory for Antibody Drug Engineering, Henan University, Kaifeng, Henan 475004, P.R. China
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Ferroni L, Gardin C, Dalla Paola L, Campo G, Cimaglia P, Bellin G, Pinton P, Zavan B. Characterization of Dermal Stem Cells of Diabetic Patients. Cells 2019; 8:cells8070729. [PMID: 31315286 PMCID: PMC6678145 DOI: 10.3390/cells8070729] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/12/2019] [Accepted: 07/15/2019] [Indexed: 12/26/2022] Open
Abstract
Diabetic foot ulcers (DFUs) are lesions that involve loss of epithelium and dermis, sometimes involving deep structures, compartments, and bones. The aim of this work is to investigate the innate regenerative properties of dermal tissue around ulcers by the identification and analysis of resident dermal stem cells (DSCs). Dermal samples were taken at the edge of DFUs, and genes related to the wound healing process were analyzed by the real-time PCR array. The DSCs were isolated and analyzed by immunofluorescence, flow cytometry, and real-time PCR array to define their stemness properties. The gene expression profile of dermal tissue showed a dysregulation in growth factors, metalloproteinases, collagens, and integrins involved in the wound healing process. In the basal condition, diabetic DSCs adhered on the culture plate with spindle-shaped fibroblast-like morphology. They were positive to the mesenchymal stem cells markers CD44, CD73, CD90, and CD105, but negative for the hematopoietic markers CD14, CD34, CD45, and HLA-DR. In diabetic DSCs, the transcription of genes related to self-renewal and cell division were equivalent to that in normal DSCs. However, the expression of CCNA2, CCND2, CDK1, ALDH1A1, and ABCG2 was downregulated compared with that of normal DSCs. These genes are also related to cell cycle progression and stem cell maintenance. Further investigation will improve the understanding of the molecular mechanisms by which these genes together govern cell proliferation, revealing new strategies useful for future treatment of DFUs.
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Affiliation(s)
- Letizia Ferroni
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy
- University of Ferrara, Department of Medical Sciences, via Fossato di Mortara 70, 44,121 Ferrara, Italy
| | - Chiara Gardin
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy
- University of Ferrara, Department of Medical Sciences, via Fossato di Mortara 70, 44,121 Ferrara, Italy
| | - Luca Dalla Paola
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy
| | - Gianluca Campo
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy
- University of Ferrara, Department of Medical Sciences, via Fossato di Mortara 70, 44,121 Ferrara, Italy
| | - Paolo Cimaglia
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy
| | - Gloria Bellin
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy
- University of Ferrara, Department of Medical Sciences, via Fossato di Mortara 70, 44,121 Ferrara, Italy
| | - Paolo Pinton
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy
- Dept. of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology and Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44,121 Ferrara, Italy
| | - Barbara Zavan
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy.
- University of Ferrara, Department of Medical Sciences, via Fossato di Mortara 70, 44,121 Ferrara, Italy.
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Nourian Dehkordi A, Mirahmadi Babaheydari F, Chehelgerdi M, Raeisi Dehkordi S. Skin tissue engineering: wound healing based on stem-cell-based therapeutic strategies. Stem Cell Res Ther 2019; 10:111. [PMID: 30922387 PMCID: PMC6440165 DOI: 10.1186/s13287-019-1212-2] [Citation(s) in RCA: 264] [Impact Index Per Article: 52.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Normal wound healing is a dynamic and complex multiple phase process involving coordinated interactions between growth factors, cytokines, chemokines, and various cells. Any failure in these phases may lead wounds to become chronic and have abnormal scar formation. Chronic wounds affect patients' quality of life, since they require repetitive treatments and incur considerable medical costs. Thus, much effort has been focused on developing novel therapeutic approaches for wound treatment. Stem-cell-based therapeutic strategies have been proposed to treat these wounds. They have shown considerable potential for improving the rate and quality of wound healing and regenerating the skin. However, there are many challenges for using stem cells in skin regeneration. In this review, we present some sets of the data published on using embryonic stem cells, induced pluripotent stem cells, and adult stem cells in healing wounds. Additionally, we will discuss the different angles whereby these cells can contribute to their unique features and show the current drawbacks.
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Affiliation(s)
- Azar Nourian Dehkordi
- Department of Stem Cell and Regenerative Medicine, Institute of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Fatemeh Mirahmadi Babaheydari
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Mohammad Chehelgerdi
- Biotechnology Research Center, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
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Kim CH, Kim MS, Kang MJ, Kim HH, Park NJ, Jung HK. Oral mucosa pressure ulcers in intensive care unit patients: A preliminary observational study of incidence and risk factors. J Tissue Viability 2018; 28:27-34. [PMID: 30551969 DOI: 10.1016/j.jtv.2018.11.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 11/03/2018] [Accepted: 11/28/2018] [Indexed: 12/11/2022]
Abstract
PURPOSE This study examined the incidence of oral mucosa pressure ulcers (PUs) in intensive care unit (ICU) patients and the relationship between biomechanical and physiological variables in onset of PUs. METHODS A prospective observational descriptive study design was used. We recruited patients over 18 years of age with endotracheal tube (ETT) insertion in three ICUs in a tertiary hospital in Korea. We analysed 113 patient-days of data. Patient assessments and medical record reviews were conducted to gather biomechanical and physiological data. Fisher's exact tests and χ2 test and Spearman's rank correlations were used to compare data. RESULTS The highest incidence of oral mucosa PUs occurred in lower oral mucosa (36.3%). There was a significant relationship between lower oral mucosa PU stage and bite-block or airway use (r = .20, p = .036), commercial ETT holder use (r = 0.19, p = .048), sedative use (r = -0.22, p = .022), and plasma protein (r = 0.20, p = .033). Upper oral mucosa PU stage was related to commercial ETT holder use (r = 0.19, p = .044), haemoglobin(r = 0.24, p = .011), haematocrit (r = 0.27, p = .004), and serum albumin (r = -0.24, p = .012). Stage was related to commercial ETT holder use in both sites (r = 0.28, p = .003), haematocrit (r = 0.19, p = .039), and serum albumin (r = -0.23, p = .015). CONCLUSION Oral mucosa PUs developed more frequently and healed more quickly than general skin PUs. Taken together, these data indicate that biomechanical and haematological variables are risk factors associated with PU incidence should be considered in intensive care patients.
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Affiliation(s)
- Chul-Hoon Kim
- Department of Oral and Maxillofacial Surgery, College of Medicine, Dong-A University, Busan, South Korea
| | - Myoung Soo Kim
- Department of Nursing, Pukyong National University, Busan, South Korea.
| | - Myung Ja Kang
- Department of Nursing, Pukyong National University, Busan, South Korea
| | - Hyun Hee Kim
- Respiratory Intensive Care Unit, Pusan National University Hospital, Busan, South Korea
| | - Nam Jung Park
- Infection Control Team, Pusan National University Hospital, Busan, South Korea
| | - Hyun Kyeong Jung
- Urology Ward, Pusan National University Hospital, Busan, South Korea
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Roxithromycin regulates intestinal microbiota and alters colonic epithelial gene expression. Appl Microbiol Biotechnol 2018; 102:9303-9316. [DOI: 10.1007/s00253-018-9257-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 07/09/2018] [Accepted: 07/13/2018] [Indexed: 12/22/2022]
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陈 静, 韩 苏, 邹 秀, 邹 玉. [Association between hepatocyte growth factor in tears and corneal haze in rabbits early after epipolis laser in situ keratomileusis]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2017; 37:1551-1554. [PMID: 29180340 PMCID: PMC6779644 DOI: 10.3969/j.issn.1673-4254.2017.11.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To study the dynamic changes of levels of hepatocyte growth factor (HGF) in tears and their association with corneal haze in rabbits early after epipolis laser in situ keratomileusis (Epi-LASIK). METHODS Twenty-four New Zealand rabbits received Epi-LASIK with an ablation depth of 100 µm in one eye and of 150 µm in the other eye. Before and at 3, 7, 14, and 30 days after the surgery, the level of HGF in tears collected from the rabbits was measured using enzyme-linked immunosorbent assay (ELISA), and corneal haze was graded after surgery. RESULTS In all the rabbits, corneal epithelium healing occurred in 3 to 5 days after Epi-LASIK. Corneal haze appeared 3 days postoperatively in the rabbits accompanied by increased levels of HGF in tears. At 3, 7, 14, and 30 days after the surgery, the rabbits with an ablation depth of 150 µm showed more obvious corneal haze (P<0.05) and significantly higher levels of HGF in tears than those with an ablation depth of 100 µm (P<0.05). CONCLUSION In rabbits receiving Epi-LASIK, HGF levels in tears and the grade of corneal haze show a positive correlation early after the surgery and are both related with the depth of ablation.
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Affiliation(s)
- 静 陈
- />广州军区广州总医院眼科,广东 广州 510010Department of Ophthalmology, Guangzhou General Hospital of Guangzhou Command, Guangzhou 510010, China
| | - 苏宁 韩
- />广州军区广州总医院眼科,广东 广州 510010Department of Ophthalmology, Guangzhou General Hospital of Guangzhou Command, Guangzhou 510010, China
| | - 秀兰 邹
- />广州军区广州总医院眼科,广东 广州 510010Department of Ophthalmology, Guangzhou General Hospital of Guangzhou Command, Guangzhou 510010, China
| | - 玉平 邹
- />广州军区广州总医院眼科,广东 广州 510010Department of Ophthalmology, Guangzhou General Hospital of Guangzhou Command, Guangzhou 510010, China
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Dolivo DM, Larson SA, Dominko T. Fibroblast Growth Factor 2 as an Antifibrotic: Antagonism of Myofibroblast Differentiation and Suppression of Pro-Fibrotic Gene Expression. Cytokine Growth Factor Rev 2017; 38:49-58. [PMID: 28967471 DOI: 10.1016/j.cytogfr.2017.09.003] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Accepted: 09/22/2017] [Indexed: 02/08/2023]
Abstract
Fibrosis is a pathological condition that is characterized by the replacement of dead or damaged tissue with a nonfunctional, mechanically aberrant scar, and fibrotic pathologies account for nearly half of all deaths worldwide. The causes of fibrosis differ somewhat from tissue to tissue and pathology to pathology, but in general some of the cellular and molecular mechanisms remain constant regardless of the specific pathology in question. One of the common mechanisms underlying fibroses is the paradigm of the activated fibroblast, termed the "myofibroblast," a differentiated mesenchymal cell with demonstrated contractile activity and a high rate of collagen deposition. Fibroblast growth factor 2 (FGF2), one of the members of the mammalian fibroblast growth factor family, is a cytokine with demonstrated antifibrotic activity in non-human animal, human, and in vitro models. FGF2 is highly pleiotropic and its receptors are present on many different cell types throughout the body, lending a great deal of variety to the potential mechanisms of FGF2 effects on fibrosis. However, recent reports demonstrate that a substantial contribution to the antifibrotic effects of FGF2 comes from the inhibitory effects of FGF2 on connective tissue fibroblasts, activated myofibroblasts, and myofibroblast progenitors. FGF2 demonstrates effects antagonistic towards fibroblast activation and towards mesenchymal transition of potential myofibroblast-forming cells, as well as promotes a gene expression paradigm more reminiscent of regenerative healing, such as that which occurs in the fetal wound healing response, than fibrotic resolution. With a better understanding of the mechanisms by which FGF2 alters the wound healing cascade and results in a shift away from scar formation and towards functional tissue regeneration, we may be able to further address the critical need of therapy for varied fibrotic pathologies across myriad tissue types.
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Affiliation(s)
- David M Dolivo
- Worcester Polytechnic Institute, Department of Biology and Biotechnology,100 Institute Road, Worcester, MA, 01609, United States
| | - Sara A Larson
- Worcester Polytechnic Institute, Department of Biology and Biotechnology,100 Institute Road, Worcester, MA, 01609, United States
| | - Tanja Dominko
- Worcester Polytechnic Institute, Department of Biology and Biotechnology,100 Institute Road, Worcester, MA, 01609, United States.
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