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Sheng L, Wang Z, Song L, Yang X, Ye Y, Sun J, Ji J, Geng S, Ning D, Zhang Y, Sun X. Antimicrobial carbon dots/pectin-based hydrogel for promoting healing processes in multidrug-resistant bacteria-infected wounds. Int J Biol Macromol 2024; 264:130477. [PMID: 38428784 DOI: 10.1016/j.ijbiomac.2024.130477] [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: 10/30/2023] [Revised: 02/24/2024] [Accepted: 02/26/2024] [Indexed: 03/03/2024]
Abstract
Multidrug-resistant (MDR) bacterial infections have become a significant threat to global healthcare systems. Here, we developed a highly efficient antimicrobial hydrogel using environmentally friendly garlic carbon dots, pectin, and acrylic acid. The hydrogel had a porous three-dimensional network structure, which endowed it with good mechanical properties and compression recovery performance. The hydrogel could adhere closely to skin tissues and had an equilibrium swelling ratio of 6.21, indicating its potential as a wound dressing. In particular, the bactericidal efficacy following 24-h contact against two MDR bacteria could exceed 99.99 %. When the hydrogel was applied to epidermal wounds infected with methicillin-resistant Staphylococcus aureus (MRSA) on mice, a remarkable healing rate of 93.29 % was observed after 10 days. This was better than the effectiveness of the traditionally used antibiotic kanamycin, which resulted in a healing rate of 70.36 %. In vitro cytotoxicity testing and hemolysis assay demonstrated a high biocompatibility. This was further proved by the in vivo assay where no toxic side effects were observed on the heart, liver, spleen, lung, or kidney of mice. This eco-friendly and easy-to-prepare food-inspired hydrogel provides an idea for the rational use of food and food by-products as a wound dressing to control MDR bacterial infections.
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Affiliation(s)
- Lina Sheng
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, PR China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing, Jiangsu 214200, PR China
| | - Ziyue Wang
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, PR China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing, Jiangsu 214200, PR China
| | - Liyao Song
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, PR China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing, Jiangsu 214200, PR China
| | - Xingxing Yang
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, PR China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing, Jiangsu 214200, PR China
| | - Yongli Ye
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, PR China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing, Jiangsu 214200, PR China
| | - Jiadi Sun
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, PR China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing, Jiangsu 214200, PR China
| | - Jian Ji
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, PR China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing, Jiangsu 214200, PR China
| | - Shuxiang Geng
- Yunnan Academy of Forestry and Grassland, Kunming, Yunnan 650201, PR China
| | - Delu Ning
- Yunnan Academy of Forestry and Grassland, Kunming, Yunnan 650201, PR China
| | - Yinzhi Zhang
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, PR China; State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, PR China
| | - Xiulan Sun
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, PR China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing, Jiangsu 214200, PR China.
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2
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Yu MG, Gordin D, Fu J, Park K, Li Q, King GL. Protective Factors and the Pathogenesis of Complications in Diabetes. Endocr Rev 2024; 45:227-252. [PMID: 37638875 PMCID: PMC10911956 DOI: 10.1210/endrev/bnad030] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/13/2023] [Accepted: 08/24/2023] [Indexed: 08/29/2023]
Abstract
Chronic complications of diabetes are due to myriad disorders of numerous metabolic pathways that are responsible for most of the morbidity and mortality associated with the disease. Traditionally, diabetes complications are divided into those of microvascular and macrovascular origin. We suggest revising this antiquated classification into diabetes complications of vascular, parenchymal, and hybrid (both vascular and parenchymal) tissue origin, since the profile of diabetes complications ranges from those involving only vascular tissues to those involving mostly parenchymal organs. A major paradigm shift has occurred in recent years regarding the pathogenesis of diabetes complications, in which the focus has shifted from studies on risks to those on the interplay between risk and protective factors. While risk factors are clearly important for the development of chronic complications in diabetes, recent studies have established that protective factors are equally significant in modulating the development and severity of diabetes complications. These protective responses may help explain the differential severity of complications, and even the lack of pathologies, in some tissues. Nevertheless, despite the growing number of studies on this field, comprehensive reviews on protective factors and their mechanisms of action are not available. This review thus focused on the clinical, biochemical, and molecular mechanisms that support the idea of endogenous protective factors, and their roles in the initiation and progression of chronic complications in diabetes. In addition, this review also aimed to identify the main needs of this field for future studies.
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Affiliation(s)
- Marc Gregory Yu
- Research Division, Joslin Diabetes Center, Boston, MA 02215, USA
- Department of Medicine, Harvard Medical School, Boston, MA 02215, USA
| | - Daniel Gordin
- Research Division, Joslin Diabetes Center, Boston, MA 02215, USA
- Department of Medicine, Harvard Medical School, Boston, MA 02215, USA
- Department of Nephrology, University of Helsinki and Helsinki University Central Hospital, Stenbäckinkatu 9, FI-00029 Helsinki, Finland
- Minerva Foundation Institute for Medical Research, Tukholmankatu 8, 00290 Helsinki, Finland
| | - Jialin Fu
- Research Division, Joslin Diabetes Center, Boston, MA 02215, USA
- Department of Medicine, Harvard Medical School, Boston, MA 02215, USA
| | - Kyoungmin Park
- Research Division, Joslin Diabetes Center, Boston, MA 02215, USA
- Department of Medicine, Harvard Medical School, Boston, MA 02215, USA
| | - Qian Li
- Research Division, Joslin Diabetes Center, Boston, MA 02215, USA
- Department of Medicine, Harvard Medical School, Boston, MA 02215, USA
| | - George Liang King
- Research Division, Joslin Diabetes Center, Boston, MA 02215, USA
- Department of Medicine, Harvard Medical School, Boston, MA 02215, USA
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3
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Matwiejuk M, Myśliwiec H, Chabowski A, Flisiak I. An Overview of Growth Factors as the Potential Link between Psoriasis and Metabolic Syndrome. J Clin Med 2023; 13:109. [PMID: 38202116 PMCID: PMC10780265 DOI: 10.3390/jcm13010109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/26/2023] [Accepted: 12/05/2023] [Indexed: 01/12/2024] Open
Abstract
Psoriasis is a chronic, complex, and immunologically mediated systemic disease that not only affects the skin, but also the joints and nails. It may coexist with various other disorders, such as depression, psoriatic arthritis, cardiovascular diseases, diabetes mellitus, and metabolic syndrome. In particular, the potential link between psoriasis and metabolic syndrome is an issue worthy of attention. The dysregulation of growth factors could potentially contribute to the disturbances of keratinocyte proliferation, inflammation, and itch severity. However, the pathophysiology of psoriasis and its comorbidities, such as metabolic syndrome, remains incompletely elucidated. Growth factors and their abnormal metabolism may be a potential link connecting these conditions. Overall, the objective of this review is to analyze the role of growth factor disturbances in both psoriasis and metabolic syndrome.
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Affiliation(s)
- Mateusz Matwiejuk
- Department of Dermatology and Venereology, Medical University of Bialystok, 15-089 Bialystok, Poland
| | - Hanna Myśliwiec
- Department of Dermatology and Venereology, Medical University of Bialystok, 15-089 Bialystok, Poland
| | - Adrian Chabowski
- Department of Physiology, Medical University of Bialystok, 15-089 Bialystok, Poland
| | - Iwona Flisiak
- Department of Dermatology and Venereology, Medical University of Bialystok, 15-089 Bialystok, Poland
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Piranaghl H, Golmohammadzadeh S, Soheili V, Noghabi ZS, Memar B, Jalali SM, Taherzadeh Z, Fazly Bazzaz BS. The potential therapeutic impact of a topical bacteriophage preparation in treating Pseudomonas aeruginosa-infected burn wounds in mice. Heliyon 2023; 9:e18246. [PMID: 37539104 PMCID: PMC10393627 DOI: 10.1016/j.heliyon.2023.e18246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 07/04/2023] [Accepted: 07/12/2023] [Indexed: 08/05/2023] Open
Abstract
Aim This study compared a topical formulation containing lytic phages with a routine antibiotic in the murine model of burn/Pseudomonas aeruginosa infected wound healing. Methods & Materials Isolated and purified lytic bacteriophages from hospital sewage were added to the polyethylene glycol (PEG) based ointment. A second-degree burned wound on the back of twenty-four adult female mice was created. The wounds were infected subcutaneously with 100 μL of 1 × 102-3 CFU/mL P. aeruginosa. After 24 h, mice were randomly assigned to one of four groups: mice received a standard antibiotic (antibiotic-treated group), mice received an ointment without bacteriophage (PEG-based group), mice received a PEG-ointment with bacteriophage (bacteriophage-treated group), or mice received no treatment (untreated-control group). Every two days, the contraction of burned wounds, physical activity, and rectal body temperature were recorded. On day 10, mice were sacrificed, and the wounds were cut off and evaluated histopathologically. Results In ointments containing PEG, bacteriophages were active and stable. The mice receiving bacteriophage and PEG-based ointment had substantially different wound contraction in primary wound healing (P = 0.001). When compared to the control group, the bacteriophage-treated group showed significant variations in wound contraction (P = 0.001). The wound contraction changed significantly between the antibiotic and PEG-based groups (P = 0.002). In all groups, physical activity in mice improved over time, with significant differences (P = 0.001). When the 8th day was compared to the days 2, 4, and 6, significant changes were found (P = 0.001, P = 0.02, and P = 0.02, respectively). Both the positive control and bacteriophage-treated groups showed perfect wound healing histopathologically. However, no significant variations in microscopic histopathological criteria were found between the groups. Conclusion Formulated phage ointment could be a promising approach for treating infected burn wounds infected by P. aeruginosa in mice with no allergic reactions.
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Affiliation(s)
- Hanieh Piranaghl
- Pharmaceutical Control Department, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Shiva Golmohammadzadeh
- Nanotechnology Research Center, Institute of Pharmaceutical Technology, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vahid Soheili
- Pharmaceutical Control Department, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Sabeti Noghabi
- Pharmaceutical Control Department, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Biopathology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Bahram Memar
- Department of Pathology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyede Melika Jalali
- Pharmaceutical Control Department, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zhila Taherzadeh
- Targeted Drug Delivery Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bibi Sedigheh Fazly Bazzaz
- Pharmaceutical Control Department, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Biotechnology Research Center, Institute of Pharmaceutical Technology, Mashhad University of Medical Sciences, Mashhad, Iran
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5
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Pastar I, Balukoff NC, Marjanovic J, Chen VY, Stone RC, Tomic-Canic M. Molecular Pathophysiology of Chronic Wounds: Current State and Future Directions. Cold Spring Harb Perspect Biol 2023; 15:a041243. [PMID: 36123031 PMCID: PMC10024648 DOI: 10.1101/cshperspect.a041243] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Venous leg ulcers, diabetic foot ulcers, and pressure ulcers are complex chronic wounds with multifactorial etiologies that are associated with high patient morbidity and mortality. Despite considerable progress in deciphering the pathologies of chronic wounds using "omics" approaches, considerable gaps in knowledge remain, and current therapies are often not efficacious. We provide a comprehensive overview of current understanding of the molecular mechanisms that impair healing and current knowledge on cell-specific dysregulation including keratinocytes, fibroblasts, immune cells, endothelial cells and their contributions to impaired reepithelialization, inflammation, angiogenesis, and tissue remodeling that characterize chronic wounds. We also provide a rationale for further elucidation of ulcer-specific pathologic processes that can be therapeutically targeted to shift chronic nonhealing to acute healing wounds.
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Affiliation(s)
- Irena Pastar
- Wound Healing and Regenerative Medicine Research Program, Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller Medical School, Miami, Florida 33136, USA
| | - Nathan C Balukoff
- Wound Healing and Regenerative Medicine Research Program, Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller Medical School, Miami, Florida 33136, USA
| | - Jelena Marjanovic
- Wound Healing and Regenerative Medicine Research Program, Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller Medical School, Miami, Florida 33136, USA
| | - Vivien Y Chen
- Wound Healing and Regenerative Medicine Research Program, Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller Medical School, Miami, Florida 33136, USA
| | - Rivka C Stone
- Wound Healing and Regenerative Medicine Research Program, Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller Medical School, Miami, Florida 33136, USA
| | - Marjana Tomic-Canic
- Wound Healing and Regenerative Medicine Research Program, Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller Medical School, Miami, Florida 33136, USA
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6
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Stack ME, Mishra S, Parimala Chelvi Ratnamani M, Wang H, Gold LI, Wang H. Biomimetic Extracellular Matrix Nanofibers Electrospun with Calreticulin Promote Synergistic Activity for Tissue Regeneration. ACS APPLIED MATERIALS & INTERFACES 2022; 14:51683-51696. [PMID: 36356217 DOI: 10.1021/acsami.2c13887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In recognition of the potential of calreticulin (CRT) protein in enhancing the rate and quality of wound healing in excisional animal wound models, this study was to incorporate CRT via polyblend electrospinning into polycaprolactone (PCL)/type 1 collagen (Col1) nanofibers (NFs; 334 ± 75 nm diameter) as biomimetic extracellular matrices to provide a novel mode of delivery and protection of CRT with enhanced synergistic activities for tissue regeneration. Release kinetic studies using fluoresceinated CRT (CRT-FITC) polyblend NFs showed a burst release within 4 h reaching a plateau at 72 h, with further intervals of release upon incubation with fresh phosphate buffered saline for up to 8 weeks. By measuring fluorescence during the first 4 h of release, CRT-FITC-containing NFs were shown to protect CRT from proteolytic digestion (e.g., by subtilisin) compared to CRT-FITC in solution. CRT incorporated into NFs (CRT-NFs) also showed retention of biological activities and potency for stimulating proliferation and migration of human keratinocytes and fibroblasts. Fibroblasts seeded on CRT-NFs, after 2 days, showed increased amounts of fibronectin, TGF-β1, and integrin β1 in cell lysates by immunoblotting. Compared to NFs without CRT, CRT-NFs supported cell responses consistent with greater cell polarization and increased laminin-5 deposition of keratinocytes and a more motile phenotype of fibroblasts, as suggested by vinculin-capping F-actin fibers nonuniformly located throughout the cell body and the secretion of phosphorylated focal adhesion kinase-enriched migrasomes. Altogether, CRT electrospun into PCL/Col1 NFs retained its structural integrity and biological functions while having additional benefits of customizable loading, protection of CRT from proteolytic degradation, and sustained release of CRT from NFs, coupled with innate physicochemical cues of biomimetic PCL/Col1 NFs. Such synergistic activities have potential for healing recalcitrant wounds such as diabetic foot ulcers.
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Affiliation(s)
- Mary E Stack
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Sarita Mishra
- Departments of Medicine and Pathology, New York University School of Medicine, New York, New York 10016, United States
| | | | - Haoyu Wang
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Leslie I Gold
- Departments of Medicine and Pathology, New York University School of Medicine, New York, New York 10016, United States
| | - Hongjun Wang
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
- Center for Healthcare Innovation, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
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7
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Zhang S, Gao L, Wang P, Ma Y, Wang X, Wen J, Cheng Y, Liu C, Zhang C, Liu C, Yan Y, Zhao C. A minimally manipulated preservation and virus inactivation method for amnion/chorion. Front Bioeng Biotechnol 2022; 10:952498. [PMID: 36032718 PMCID: PMC9403546 DOI: 10.3389/fbioe.2022.952498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/18/2022] [Indexed: 11/15/2022] Open
Abstract
Allogeneic amnion tissues have been widely used in tissue repair and regeneration, especially a remarkable trend of clinical uses in chronic wound repair. The virus inactivation procedures are necessary and required to be verified for the clinical use and approval of biological products. Cobalt-60 (Co-60) or electron-beam (e-beam) is the common procedure for virus and bacterial reduction, but the excessive dose of irradiation was reported to be harmful to biological products. Herein, we present a riboflavin (RB)-ultraviolet light (UV) method for virus inactivation of amnion and chorion tissues. We used the standard in vitro limiting dilution assay to test the viral reduction capacity of the RB-UV method on amnion or chorion tissues loaded with four types of model viruses. We found RB-UV was a very effective procedure for inactivating viruses of amnion and chorion tissues, which could be used as a complementary method to Co-60 irradiation. In addition, we also screened the washing solutions and drying methods for the retention of growth factors.
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Affiliation(s)
- Shang Zhang
- Success Bio-Tech Co., Ltd., Biomedical Material Engineering Laboratory of Shandong Province, Jinan, China
- *Correspondence: Shang Zhang,
| | - Lichang Gao
- Success Bio-Tech Co., Ltd., Biomedical Material Engineering Laboratory of Shandong Province, Jinan, China
| | - Pin Wang
- Success Bio-Tech Co., Ltd., Biomedical Material Engineering Laboratory of Shandong Province, Jinan, China
| | - Yuyan Ma
- Department of Gynecology and Obstetrics, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiaoliang Wang
- Liangchen Biotechnology (Suzhou) Co., Ltd., Suzhou, China
| | - Jie Wen
- Liangchen Biotechnology (Suzhou) Co., Ltd., Suzhou, China
| | - Yu Cheng
- Success Bio-Tech Co., Ltd., Biomedical Material Engineering Laboratory of Shandong Province, Jinan, China
| | - Changlin Liu
- Success Bio-Tech Co., Ltd., Biomedical Material Engineering Laboratory of Shandong Province, Jinan, China
| | - Chunxia Zhang
- Success Bio-Tech Co., Ltd., Biomedical Material Engineering Laboratory of Shandong Province, Jinan, China
| | - Changfeng Liu
- Success Bio-Tech Co., Ltd., Biomedical Material Engineering Laboratory of Shandong Province, Jinan, China
| | - Yongli Yan
- Success Bio-Tech Co., Ltd., Biomedical Material Engineering Laboratory of Shandong Province, Jinan, China
| | - Chengru Zhao
- Success Bio-Tech Co., Ltd., Biomedical Material Engineering Laboratory of Shandong Province, Jinan, China
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Tanjung SA, Silalahi J, Reveny J. Wound Healing Activity of Nanoemulgel Containing Artocarpus lakoocha Roxb. Extract on Burns Model in Rat. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.8589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: The content of secondary metabolites in mobe leaves has the potential to be used in wound healing. Artocarpine, one of the secondary metabolites found in mobe leaves, is reported to affect the expression of transforming growth factor-beta (TGF-β) protein, thereby increasing fibroblast cell proliferation and accelerating the wound healing process.
AIM: This study aims to determine the wound healing activity of nanoemulgel-containing ethanol extract of mobe leaves.
MATERIALS AND METHODS: The method used in this study was experimental using chemicals ethanol 96%, Carbopol 940, PEG 400, Propylene glycol, Methyl Paraben, Propyl Paraben, Triethanolamine, Aqua Destillata. Mode leaves which were taken purposively were then formulated in nanoemulgel preparations which were tested for wound healing in male rats. The nanoemulgel preparation was then evaluated which included homogeneity, emulsion type, pH, viscosity, dispersion, and measurement of the nanoemulgel globules of mobe leaf extract, stability of the nanoemulgel preparation. Tests for the healing effect of burns were carried out on male rats for 14 days.
RESULTS: Mobe leaves ethanol extract can be formulated into nanoemulgel dosage forms. This study showed wound healing activity of nanoemulgels with concentration variation of mobe leaves ethanol extract. The percentage of wound diameter reducing and fibroblast cells value were showed to increase and significantly different to negative control (p < 0.05) in 14 days. Platelet-derived growth factor (PDGF)-BB and TGF-β1 immunoexpression evaluation result showed significantly different to Blanko group (p < 0.05) in 14-day observation.
CONCLUSION: From this study, nanoemulgel mobe can stimulate more fibroblast cell proliferation by greatly expressing TGF-β1 and PDGF BB in burn wounds.
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Choi S, Yoon M, Choi KY. Approaches for Regenerative Healing of Cutaneous Wound with an Emphasis on Strategies Activating the Wnt/β-Catenin Pathway. Adv Wound Care (New Rochelle) 2022; 11:70-86. [PMID: 33573472 PMCID: PMC9831250 DOI: 10.1089/wound.2020.1284] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Significance: In adult mammals, spontaneous repair of a cutaneous wound occurs slowly and leaves a scar with skin adnexa deficiencies. To accelerate cutaneous wound-healing rates and avoid scar formation, current studies have focused on regenerative therapies. Recent Advances: Emerging therapeutics for regenerative wound healing often focus on the use of growth factors and stem cells. However, these therapeutic approaches have limited routine clinical use due to high costs and technical requirements. Critical Issue: Understanding the molecular mechanisms involved in the signaling pathways for cutaneous wound healing and neogenic synthesis of the skin components is important for identification of novel targets for the development of regenerative wound-healing agents. Future Directions: The Wnt/β-catenin pathway is a well-known key player for enhancement of the overall healing process involving tissue regeneration via crosstalk with other signaling pathways. Strategies that activate the Wnt/β-catenin pathway via modulation of the pathway-controlling regulatory factors could provide effective therapeutic approaches for regenerative wound healing.
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Affiliation(s)
- Sehee Choi
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Minguen Yoon
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Kang-Yell Choi
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea.,CK Biotech, Inc., Seodaemun-Gu, Korea.,Correspondence: CK Biotech, Inc., Room 417, Engineering Research Park, 50 Yonsei Ro, Seodaemun-Gu 03722, Korea
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10
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Gong JH, Dong JY, Xie T, Zhao Q, Lu SL. Different therapeutic effects between diabetic and non-diabetic adipose stem cells in diabetic wound healing. J Wound Care 2021; 30:S14-S23. [PMID: 33856928 DOI: 10.12968/jowc.2021.30.sup4.s14] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVE This study aimed to investigate how adipose tissue-derived stem cells (ASCs) from diabetic and from non-diabetic rats affect wound healing in different microenvironments. METHOD The two types of ASC-rich cells were distinguished by characteristic surface antigen detection. The ASC-rich cells were transplanted into the wounds of diabetic and non-diabetic rats. Wound healing rates were compared and the healing process in the wound margin sections was used to determine how ASC-rich cells affect wound healing in different microenvironments. RESULTS ASC density was decreased in diabetic rats. The generation time of ASC-rich cells from diabetic rats (d-ASC-rich cells) was longer than that of ASC-rich cells from non-diabetic rats. The number of pre-apoptotic cells in the third generation (passage 3) of d-ASC-rich cells was higher than that among the ASC-rich cells from non-diabetic rats. CD31 and CD34 expression was higher in d-ASC-rich cells than in ASC-rich cells from non-diabetic rats, whereas CD44 and CD105 expression was lower than that in ASC-rich cells from non-diabetic rats. Transplantation of ASC-rich cells from non-diabetic rats promoted wound healing in both non-diabetic and diabetic rats. In contrast, d-ASC-rich cells and enriched nuclear cells only promoted wound healing in non-diabetic rats. ASC-rich cell transplantation promoted greater tissue regeneration than d-ASC-rich cell transplantation. CONCLUSION ASC-rich cells promoted wound healing in diabetic and non-diabetic rats. ASC density was lower in the adipose tissue of diabetic rats compared with non-diabetic rats. d-ASC-rich cells did not promote wound healing in diabetic rats, suggesting that caution is warranted regarding the clinical use of diabetic adipose stem cell transplantation for the treatment of diabetic wounds.
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Affiliation(s)
- Jia-Hong Gong
- Shanghai Burn Institute, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiao-Yun Dong
- Shanghai Burn Institute, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ting Xie
- Shanghai 9th people's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qingnan Zhao
- University of Texas MD Anderson Cancer Center, Houston, Texas 77054, US
| | - Shu-Liang Lu
- Shanghai Burn Institute, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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11
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Raghunathan V, Park SA, Shah NM, Reilly CM, Teixeira L, Dubielzig R, Chang YR, Motta MJ, Schurr MJ, McAnulty JF, Isseroff RR, Abbott NL, Murphy CJ. Changing the Wound: Covalent Immobilization of the Epidermal Growth Factor. ACS Biomater Sci Eng 2021; 7:2649-2660. [PMID: 34018720 DOI: 10.1021/acsbiomaterials.1c00192] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Re-epithelialization of wounds is a critical element of wound closure. Growth factors have been used in combination with conventional wound management to promote closure, but the method of delivery has been limited to the topical application of ointment formulations. Cytoactive factors delivered in this way have short resident times in wounds and have met with limited success. Here, we demonstrate that methods used to covalently immobilize proteins on synthetic materials can be extended to immobilize cytoactive factors such as the epidermal growth factor (EGF) onto the wound beds of genetically diabetic mice that exhibit impaired healing. Full-thickness splinted excisional wounds were created in diabetic (db/db) mice with a well-defined silicone splint to limit wound contracture. Wound surfaces were treated with a reducing agent to expose sulfhydryl groups and subsequently treated with EGF modified with a heterobifunctional crosslinker. This allowed for the covalent immobilization of the EGF to the wound surface. The conjugation chemistry was validated in vitro and in vivo. In a separate group of mice, wounds were topically treated twice daily with soluble EGF. The mice were evaluated over 11 days for wound closure. This covalent immobilization strategy resulted in EGF being retained on the wound surface for 2 days and significantly increased epithelial wound closure by 20% compared to wounds treated with topical EGF or topical vehicle. Covalent immobilization was not only therapeutically effective but also delivered a markedly reduced load of growth factor to the wound surface compared to topical application (when only 180 ng of EGF was immobilized onto the wound surface in comparison with 7200 ng of topically applied EGF over a period of 11 days). No adverse effects were observed in treated wounds. Results obtained provide proof of concept for the effectiveness of covalent immobilization in the treatment of dysregulated wounds. The covalent immobilization of cytoactive factors represents a potentially transformative approach to the management of difficult chronic wounds.
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Affiliation(s)
- VijayKrishna Raghunathan
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, One Shields Avenue, Davis, California 95616, United States.,Department of Basic Sciences, College of Optometry, University of Houston, 4901 Calhoun Rd, Houston, Texas 77204, United States.,Biomedical Engineering, Cullen College of Engineering, University of Houston, Houston, Texas 77204, United States
| | - Shin Ae Park
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, One Shields Avenue, Davis, California 95616, United States.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, 625 Harrison Street, West Lafayette, Indiana 47907, United States
| | - Nihar M Shah
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, One Shields Avenue, Davis, California 95616, United States.,Medtronic Diabetes, 18000 Devonshire Street, Northridge, California 91325-1219, United States
| | - Christopher M Reilly
- Department of Pathology, Microbiology & Immunology, School of Veterinary Medicine, University of California Davis, One Shields Avenue, Davis, California 95616, United States
| | - Leandro Teixeira
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Richard Dubielzig
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Yow-Ren Chang
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, One Shields Avenue, Davis, California 95616, United States
| | - Monica J Motta
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, One Shields Avenue, Davis, California 95616, United States
| | - Michael J Schurr
- Divison of General Surgery, Mountain Area Health Education Center, 509 Biltmore Avenue, Asheville, North Carolina 28803, United States
| | - Jonathan F McAnulty
- Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 2015 Linden Drive, Madison, Wisconsin 53706, United States
| | - R Rivkah Isseroff
- Department of Dermatology, UC Davis School of Medicine, University of California Davis, Sacramento, California 95817, United States
| | - Nicholas L Abbott
- Smith School of Chemical and Biomolecular Engineering, Cornell University, 1 Hoy Plaza, Ithaca, New York 14853 United States
| | - Christopher J Murphy
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, One Shields Avenue, Davis, California 95616, United States.,Department of Ophthalmology & Vision Science, School of Medicine, University of California Davis, One Shields Avenue, Davis, California 95817, United States
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12
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Guo JW, Pu CM, Liu CY, Lo SL, Yen YH. Curcumin-Loaded Self-Microemulsifying Gel for Enhancing Wound Closure. Skin Pharmacol Physiol 2021; 33:300-308. [PMID: 33472208 DOI: 10.1159/000512122] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 10/03/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Wound healing is a process in which damaged cutaneous tissues are repaired and is a dynamic physiological interaction involving several types of cells, tissues, and proteins. Compared with typical treatments, specifically in terms of multifunctional properties, bioactive drug-loaded wound dressing in a controlled and sustained delivery system is an advanced tool that significantly improves wound healing. Curcumin substantially enhances wound healing and prevents oxidative damage. However, the effects of this compound on improving wound healing are limited by its aqueous solubility, poor tissue absorption, and rapid metabolism. Hence, the current study aimed to investigate the therapeutic effect of curcumin-loaded self-microemulsifying gel on wound healing. METHODS Ex vivo permeation studies of the skin of BALB/c mice were performed using a diffusion cell sampling system. The in vivo therapeutic effect was investigated with a full-thickness wound model. Two 6-mm full-thickness circular wounds were created on the back of the mice via punch biopsy. Then, they received different topical gels for 12 days to enhance wound closure. RESULTS The curcumin-loaded self-microemulsifying gel had higher skin flux, cumulative amount, and permeability coefficient than the commercial gels. In addition, it enhanced wound healing. CONCLUSIONS This is the first study that utilized self-microemulsifying gel loaded with curcumin as a delivery system for wound healing. However, the effect of this delivery system on wound healing or skin disease treatment should be further investigated.
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Affiliation(s)
- Jiun Wen Guo
- Department of Medical Research, Cathay General Hospital, Taipei, Taiwan.,PhD Program in Pharmaceutical Biotechnology, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Chi-Ming Pu
- Division of Plastic Surgery, Department of Surgery, Cathay General Hospital, Taipei, Taiwan.,School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Chih-Yi Liu
- Division of Pathology, Sijhih Cathay General Hospital, New Taipei City, Taiwan
| | - Shih-Lun Lo
- Division of Plastic Surgery, Department of Surgery, Cathay General Hospital, Taipei, Taiwan
| | - Yu-Hsiu Yen
- Division of Plastic Surgery, Department of Surgery, Cathay General Hospital, Taipei, Taiwan, .,School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan,
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13
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Deptuła M, Karpowicz P, Wardowska A, Sass P, Sosnowski P, Mieczkowska A, Filipowicz N, Dzierżyńska M, Sawicka J, Nowicka E, Langa P, Schumacher A, Cichorek M, Zieliński J, Kondej K, Kasprzykowski F, Czupryn A, Janus Ł, Mucha P, Skowron P, Piotrowski A, Sachadyn P, Rodziewicz-Motowidło S, Pikuła M. Development of a Peptide Derived from Platelet-Derived Growth Factor (PDGF-BB) into a Potential Drug Candidate for the Treatment of Wounds. Adv Wound Care (New Rochelle) 2020; 9:657-675. [PMID: 33124966 PMCID: PMC7698658 DOI: 10.1089/wound.2019.1051] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 09/13/2019] [Indexed: 12/16/2022] Open
Abstract
Objective: This study evaluated the use of novel peptides derived from platelet-derived growth factor (PDGF-BB) as potential wound healing stimulants. One of the compounds (named PDGF2) was subjected for further research after cytotoxicity and proliferation assays on human skin cells. Further investigation included evaluation of: migration and chemotaxis of skin cells, immunological and allergic safety, the transcriptional analyses of adipose-derived stem cells (ASCs) and dermal fibroblasts stimulated with PDGF2, and the use of dorsal skin wound injury model to evaluate the effect of wound healing in mice. Approach: Colorimetric lactate dehydrogenase and tetrazolium assays were used to evaluate the cytotoxicity and the effect on proliferation. PDGF2 effect on migration and chemotaxis was also checked. Immunological safety and allergic potential were evaluated with a lymphocyte activation and basophil activation test. Transcriptional profiles of ASCs and primary fibroblasts were assessed after stimulation with PDGF2. Eight-week-old BALB/c female mice were used for dorsal skin wound injury model. Results: PDGF2 showed low cytotoxicity, pro-proliferative effects on human skin cells, high immunological safety, and accelerated wound healing in mouse model. Furthermore, transcriptomic analysis of ASCs and fibroblasts revealed the activation of processes involved in wound healing and indicated its safety. Innovation: A novel peptide derived from PDGF-BB was proved to be safe drug candidate in wound healing. We also present a multifaceted in vitro model for the initial screening of new compounds that may be potentially useful in wound healing stimulation. Conclusion: The results show that peptide derived from PDGF-BB is a promising drug candidate for wound treatment.
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Affiliation(s)
- Milena Deptuła
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, Gdansk, Poland
| | - Przemysław Karpowicz
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Anna Wardowska
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, Gdansk, Poland
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
| | - Piotr Sass
- Laboratory for Regenerative Biotechnology, Gdansk University of Technology, Gdansk, Poland
| | - Paweł Sosnowski
- Laboratory for Regenerative Biotechnology, Gdansk University of Technology, Gdansk, Poland
| | | | | | - Maria Dzierżyńska
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Justyna Sawicka
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Ewa Nowicka
- Department of Clinical Anatomy, Medical University of Gdansk, Gdansk, Poland
| | - Paulina Langa
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
| | | | | | - Jacek Zieliński
- Department of Surgical Oncology, and Medical University of Gdansk, Gdansk, Poland
| | - Karolina Kondej
- Department of Plastic Surgery, Medical University of Gdansk, Gdansk, Poland
| | | | - Artur Czupryn
- Laboratory of Neurobiology, Nencki Institute of Experimental Biology PAS, Warsaw, Poland
| | | | - Piotr Mucha
- Department of Biochemistry, and Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Piotr Skowron
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | | | - Paweł Sachadyn
- Laboratory for Regenerative Biotechnology, Gdansk University of Technology, Gdansk, Poland
| | | | - Michał Pikuła
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, Gdansk, Poland
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
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14
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Chen L, Cheng L, Wang Z, Zhang J, Mao X, Liu Z, Zhang Y, Cui W, Sun X. Conditioned medium-electrospun fiber biomaterials for skin regeneration. Bioact Mater 2020; 6:361-374. [PMID: 32954054 PMCID: PMC7481508 DOI: 10.1016/j.bioactmat.2020.08.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 08/13/2020] [Accepted: 08/22/2020] [Indexed: 12/24/2022] Open
Abstract
Conditioned medium (CM) contains variety of factors secreted by cells, which directly regulate cellular processes, showing tremendous potential in regenerative medicine. Here, for the first time, we proposed a novel regenerative therapy mediated by biodegradable micro-nano electrospun fibers loaded with highly active conditioned medium of adipose-derived stem cells (ADSC-CM). ADSC-CM was successfully loaded into the nanofibers with biological protection and controllable sustained-release properties by emulsion electrospinning and protein freeze-drying technologies. In vitro, ADSC-CM released by the fibers accelerated the migration rate of fibroblasts; inhibited the over proliferation of fibroblasts by inducing apoptosis and damaging cell membrane; in addition, ADSC-CM inhibited the transformation of fibroblasts into myofibroblasts and suppressed excessive production of extracellular matrix (ECM). In vivo, the application of CM-biomaterials significantly accelerated wound closure and improved regeneration outcome, showing superior pro-regenerative performance. This study pioneered the application of CM-biomaterials in regenerative medicine, and confirmed the practicability and significant biological effects of this innovative biomaterials.
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Affiliation(s)
- Lu Chen
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, PR China
| | - Liying Cheng
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, PR China
| | - Zhen Wang
- Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, PR China
| | - Jianming Zhang
- National Research Center for Translational Medicine, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, PR China
| | - Xiyuan Mao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, PR China
| | - Zhimo Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, PR China
| | - Yuguang Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, PR China
| | - Wenguo Cui
- Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, PR China
| | - Xiaoming Sun
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, PR China
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15
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Nie X, Zhao J, Ling H, Deng Y, Li X, He Y. Exploring microRNAs in diabetic chronic cutaneous ulcers: Regulatory mechanisms and therapeutic potential. Br J Pharmacol 2020; 177:4077-4095. [PMID: 32449793 DOI: 10.1111/bph.15139] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 05/04/2020] [Accepted: 05/07/2020] [Indexed: 12/12/2022] Open
Abstract
Diabetic chronic cutaneous ulcers (DCU) are one of the serious complications of diabetes mellitus, occurring mainly in diabetic patients with peripheral neuropathy. Recent studies have indicated that microRNAs (miRNAs/miRs) and their target genes are essential regulators of cell physiology and pathology including biological processes that are involved in the regulation of diabetes and diabetes-related microvascular complications. in vivo and in vitro models have revealed that the expression of some miRNAs can be regulated in the inflammatory response, cell proliferation, and wound remodelling of DCU. Nevertheless, the potential application of miRNAs to clinical use is still limited. Here, we provide a contemporary overview of the miRNAs as well as their associated target genes and pathways (including Wnt/β-catenin, NF-κB, TGF-β/Smad, and PI3K/AKT/mTOR) related to DCU healing. We also summarize the current development of drugs for DCU treatment and discuss the therapeutic challenges of DCU treatment and its future research directions.
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Affiliation(s)
- Xuqiang Nie
- Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, China.,College of Pharmacy, Zunyi Medical University, Zunyi, China.,Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing, China
| | - Jiufeng Zhao
- Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Hua Ling
- School of Pharmacy, Georgia Campus - Philadelphia College of Osteopathic Medicine, Suwanee, GA, USA
| | - Youcai Deng
- Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing, China
| | - Xiaohui Li
- Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing, China
| | - Yuqi He
- Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, China.,College of Pharmacy, Zunyi Medical University, Zunyi, China
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16
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Kifelew LG, Warner MS, Morales S, Vaughan L, Woodman R, Fitridge R, Mitchell JG, Speck P. Efficacy of phage cocktail AB-SA01 therapy in diabetic mouse wound infections caused by multidrug-resistant Staphylococcus aureus. BMC Microbiol 2020; 20:204. [PMID: 32646376 PMCID: PMC7346408 DOI: 10.1186/s12866-020-01891-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 07/01/2020] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Diabetic foot ulcer (DFU) is a serious complication of diabetes mellitus. Antibiotic-resistant Staphylococcus aureus is frequently isolated from DFU infections. Bacteriophages (phages) represent an alternative or adjunct treatment to antibiotic therapy. Here we describe the efficacy of AB-SA01, a cocktail of three S. aureus Myoviridae phages, made to current good manufacturing practice (cGMP) standards, and which has undergone two phase I clinical trials, in treatment of multidrug-resistant (MDR) S. aureus infections. RESULTS Wounds of saline-treated mice showed no healing, but expanded and became inflamed, ulcerated, and suppurating. In contrast, AB-SA01 treatment decreased the bacterial load with efficacy similar or superior to vancomycin treatment. At the end of the treatment period, there was a significant decrease (p < 0.001) in bacterial load and wound size in infected phage- and vancomycin-treated groups compared with infected saline-treated mice. In phage-treated mice, wound healing was seen similar to vancomycin treatment. No mortality was recorded associated with infections, and post-mortem examinations did not show any evident pathological lesions other than the skin wounds. No adverse effects related to the application of phages were observed. CONCLUSION Topical application of phage cocktail AB-SA01 is effective, as shown by bacterial load reduction and wound closure, in the treatment of diabetic wound infections caused by MDR S. aureus. Our results suggest that topical phage cocktail treatment may be effective in treating antibiotic-resistant S. aureus DFU infections.
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Affiliation(s)
- Legesse Garedew Kifelew
- College of Science and Engineering, Flinders University, Adelaide, South Australia, Australia. .,St Paul's Hospital Millennium Medical College, Addis Ababa, Ethiopia.
| | - Morgyn S Warner
- Infectious Diseases Unit, The Queen Elizabeth Hospital, Woodville, South Australia, Australia.,Faculty of Medicine, University of Adelaide, Adelaide, South Australia, Australia
| | - Sandra Morales
- AmpliPhi Biosciences Corporation, Sydney, New South Wales, Australia
| | - Lewis Vaughan
- Research Development and Support, Flinders University, Adelaide, South Australia, Australia
| | - Richard Woodman
- College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia
| | - Robert Fitridge
- Discipline of Surgery, The University of Adelaide, Adelaide, South Australia, Australia
| | - James G Mitchell
- College of Science and Engineering, Flinders University, Adelaide, South Australia, Australia
| | - Peter Speck
- College of Science and Engineering, Flinders University, Adelaide, South Australia, Australia
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17
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Okonkwo UA, Chen L, Ma D, Haywood VA, Barakat M, Urao N, DiPietro LA. Compromised angiogenesis and vascular Integrity in impaired diabetic wound healing. PLoS One 2020; 15:e0231962. [PMID: 32324828 PMCID: PMC7179900 DOI: 10.1371/journal.pone.0231962] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 04/03/2020] [Indexed: 12/19/2022] Open
Abstract
Vascular deficits are a fundamental contributing factor of diabetes-associated diseases. Although previous studies have demonstrated that the pro-angiogenic phase of wound healing is blunted in diabetes, a comprehensive understanding of the mechanisms that regulate skin revascularization and capillary stabilization in diabetic wounds is lacking. Using a mouse model of diabetic wound healing, we performed microCT analysis of the 3-dimensional architecture of the capillary bed. As compared to wild type, vessel surface area, branch junction number, total vessel length, and total branch number were significantly decreased in wounds of diabetic mice as compared to WT mice. Diabetic mouse wounds also had significantly increased capillary permeability and decreased pericyte coverage of capillaries. Diabetic wounds exhibited significant perturbations in the expression of factors that affect vascular regrowth, maturation and stability. Specifically, the expression of VEGF-A, Sprouty2, PEDF, LRP6, Thrombospondin 1, CXCL10, CXCR3, PDGFR-β, HB-EGF, EGFR, TGF-β1, Semaphorin3a, Neuropilin 1, angiopoietin 2, NG2, and RGS5 were down-regulated in diabetic wounds. Together, these studies provide novel information about the complexity of the perturbation of angiogenesis in diabetic wounds. Targeting factors responsible for wound resolution and vascular pruning, as well those that affect pericyte recruitment, maturation, and stability may have the potential to improve diabetic skin wound healing.
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Affiliation(s)
- Uzoagu A. Okonkwo
- Center for Wound Healing and Tissue Regeneration, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Lin Chen
- Center for Wound Healing and Tissue Regeneration, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Da Ma
- Guangdong Provincial Key Laboratory of Stomatology, Stomatological Hospital, Guanghua School of Stomatology, SunYat-sen University, Guangzhou, Guangdong, China
| | - Veronica A. Haywood
- Center for Wound Healing and Tissue Regeneration, University of Illinois at Chicago, Chicago, IL, United States of America
| | - May Barakat
- Center for Wound Healing and Tissue Regeneration, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Norifumi Urao
- Department of Pharmacology, Upstate Medical University, Syracuse, NY, United States of America
| | - Luisa A. DiPietro
- Center for Wound Healing and Tissue Regeneration, University of Illinois at Chicago, Chicago, IL, United States of America
- * E-mail:
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18
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Masson‐Meyers DS, Andrade TAM, Caetano GF, Guimaraes FR, Leite MN, Leite SN, Frade MAC. Experimental models and methods for cutaneous wound healing assessment. Int J Exp Pathol 2020; 101:21-37. [PMID: 32227524 PMCID: PMC7306904 DOI: 10.1111/iep.12346] [Citation(s) in RCA: 136] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 01/20/2020] [Accepted: 02/06/2020] [Indexed: 12/15/2022] Open
Abstract
Wound healing studies are intricate, mainly because of the multifaceted nature of the wound environment and the complexity of the healing process, which integrates a variety of cells and repair phases, including inflammation, proliferation, reepithelialization and remodelling. There are a variety of possible preclinical models, such as in mice, rabbits and pigs, which can be used to mimic acute or impaired for example, diabetic and nutrition-related wounds. These can be induced by many different techniques, with excision or incision being the most common. After determining a suitable model for a study, investigators need to select appropriate and reproducible methods that will allow the monitoring of the wound progression over time. The assessment can be performed by non-invasive protocols such as wound tracing, photographic documentation (including image analysis), biophysical techniques and/or by invasive protocols that will require wound biopsies. In this article, we provide an overview of some of the most often needed and used: (a) preclinical/animal models including incisional, excisional, burn and impaired wounds; (b) methods to evaluate the healing progression such as wound healing rate, wound analysis by image, biophysical assessment, histopathological, immunological and biochemical assays. The aim is to help researchers during the design and execution of their wound healing studies.
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Affiliation(s)
- Daniela S. Masson‐Meyers
- Marquette University School of DentistryMilwaukeeWisconsinUSA
- Division of DermatologyDepartment of Internal MedicineRibeirao Preto Medical SchoolUniversity of Sao PauloRibeirao PretoSao PauloBrazil
| | - Thiago A. M. Andrade
- Division of DermatologyDepartment of Internal MedicineRibeirao Preto Medical SchoolUniversity of Sao PauloRibeirao PretoSao PauloBrazil
- Graduate Program of Biomedical SciencesUniversity Center of Herminio Ometto Foundation (FHO)ArarasSao PauloBrazil
| | - Guilherme F. Caetano
- Division of DermatologyDepartment of Internal MedicineRibeirao Preto Medical SchoolUniversity of Sao PauloRibeirao PretoSao PauloBrazil
- Graduate Program of Biomedical SciencesUniversity Center of Herminio Ometto Foundation (FHO)ArarasSao PauloBrazil
| | - Francielle R. Guimaraes
- Division of DermatologyDepartment of Internal MedicineRibeirao Preto Medical SchoolUniversity of Sao PauloRibeirao PretoSao PauloBrazil
- University Center of Associated Schools of Education (UNIFAE)São João da Boa VistaSão PauloBrazil
| | - Marcel N. Leite
- Division of DermatologyDepartment of Internal MedicineRibeirao Preto Medical SchoolUniversity of Sao PauloRibeirao PretoSao PauloBrazil
| | - Saulo N. Leite
- Division of DermatologyDepartment of Internal MedicineRibeirao Preto Medical SchoolUniversity of Sao PauloRibeirao PretoSao PauloBrazil
- University Center of the Educational Foundation Guaxupe (UNIFEG)GuaxupeMinas GeraisBrazil
| | - Marco Andrey C. Frade
- Division of DermatologyDepartment of Internal MedicineRibeirao Preto Medical SchoolUniversity of Sao PauloRibeirao PretoSao PauloBrazil
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19
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Oostendorp C, Geutjes PJ, Smit F, Tiemessen DM, Polman S, Abbawi A, Brouwer KM, Eggink AJ, Feitz WFJ, Daamen WF, van Kuppevelt TH. Sustained Postnatal Skin Regeneration Upon Prenatal Application of Functionalized Collagen Scaffolds. Tissue Eng Part A 2020; 27:10-25. [PMID: 31971880 DOI: 10.1089/ten.tea.2019.0234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Primary closure of fetal skin in spina bifida protects the spinal cord and improves clinical outcome, but is also associated with postnatal growth malformations and spinal cord tethering. In this study, we evaluated the postnatal effects of prenatally closed full-thickness skin defects in sheep applying collagen scaffolds with and without heparin/vascular endothelial growth factor/fibroblast growth factor 2, focusing on skin regeneration and growth. At 6 months, collagen scaffold functionalized with heparin, VEGF, and FGF2 (COL-HEP/GF) resulted in a 6.9-fold increase of the surface area of the regenerated skin opposed to 1.7 × for collagen only. Epidermal thickness increased 5.7-fold at 1 month, in line with high gene expression of S100 proteins, and decreased to 2.1 at 6 months. Increased adipose tissue and reduced scaffold degradation and number of myofibroblasts were observed for COL-HEP/GF. Gene ontology terms related to extracellular matrix (ECM) organization were enriched for both scaffold treatments. In COL-HEP/GF, ECM gene expression resembled native skin. Expression of hair follicle-related genes in COL-HEP/GF was comparable to native skin, and de novo hair follicle generation was indicated. In conclusion, in utero closure of skin defects using functionalized collagen scaffolds resulted in long-term skin regeneration and growth. Functionalized collagen scaffolds that grow with the child may be useful for prenatal treatment of closure defects like spina bifida. Impact statement Prenatal closure of fetal skin in case of spina bifida prevents damage to the spinal cord. Closure of the defect is challenging and may result in postnatal growth malformations. In this study, the postnatal effects of a prenatally applied collagen scaffold functionalized with heparin and vascular endothelial growth factor (VEGF)/fibroblast growth factor (FGF) were investigated. An increase of the surface area of regenerated skin ("growing with the child") and generation of hair follicles was observed. Gene expression levels resembled those of native skin with respect to the extracellular matrix and hair follicles. Overall, in utero closure of skin defects using heparin/VEGF/FGF functionalized collagen scaffolds results in long-term skin regeneration.
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Affiliation(s)
- Corien Oostendorp
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Paul J Geutjes
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Dorien M Tiemessen
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Sjoerd Polman
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Aya Abbawi
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Katrien M Brouwer
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Alex J Eggink
- Department of Obstetrics and Gynecology, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands
| | - Wout F J Feitz
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.,Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Willeke F Daamen
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Toin H van Kuppevelt
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
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20
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Forbes D, Russ B, Kilani R, Ghahary A, Jalili R. Liquid Dermal Scaffold With Adipose-Derived Stem Cells Improve Tissue Quality in a Murine Model of Impaired Wound Healing. J Burn Care Res 2019; 40:550-557. [PMID: 31188436 DOI: 10.1093/jbcr/irz099] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Wound repair and regeneration is a multidisciplinary field of research with considerable potential value to the management of deep and large burn injuries. These injuries lack an appropriate tissue scaffold and pro-healing cells making them difficult to heal. An alternative to the often limited autologous skin is a therapy that would restore the essential matrix and cellular components for rapid healing. In this study, they use a novel liquid dermal scaffold capable of gelation in vivo to show that it is biocompatible with adipose-derived stem cells. Using a validated method of wound splinting in a delayed-healing murine model, we show that wounds treated with the scaffold and stem cells had a significant reduction in wound size and had accelerated healing compared with control. The wounds treated with stem cells had increased capillary formation, collagen content, epidermal thickness, and essential growth factor expression in the healed tissue compared with control and liquid scaffold alone. This liquid dermal scaffold combined with cells is a feasible treatment strategy for complex or large burn wounds that are otherwise lacking the appropriate cellular matrix necessary for healing.
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Affiliation(s)
- Diana Forbes
- Division of Plastic Surgery, Department of Surgery, University of British Columbia, Vancouver, BC, Canada.,BC Provincial Fire Fighter's Burn and Wound Healing Research Lab, Vancouver, BC, Canada
| | - Breshell Russ
- BC Provincial Fire Fighter's Burn and Wound Healing Research Lab, Vancouver, BC, Canada.,Department of Microbiology and Immunology, Faculty of Science, University of British Columbia, Vancouver, BC, Canada
| | - Ruhangiz Kilani
- Division of Plastic Surgery, Department of Surgery, University of British Columbia, Vancouver, BC, Canada.,BC Provincial Fire Fighter's Burn and Wound Healing Research Lab, Vancouver, BC, Canada
| | - Aziz Ghahary
- Division of Plastic Surgery, Department of Surgery, University of British Columbia, Vancouver, BC, Canada.,BC Provincial Fire Fighter's Burn and Wound Healing Research Lab, Vancouver, BC, Canada
| | - Reza Jalili
- Division of Plastic Surgery, Department of Surgery, University of British Columbia, Vancouver, BC, Canada.,BC Provincial Fire Fighter's Burn and Wound Healing Research Lab, Vancouver, BC, Canada
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21
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A Novel Substance P-Based Hydrogel for Increased Wound Healing Efficiency. Molecules 2018; 23:molecules23092215. [PMID: 30200361 PMCID: PMC6225281 DOI: 10.3390/molecules23092215] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 08/29/2018] [Accepted: 08/30/2018] [Indexed: 11/17/2022] Open
Abstract
The neuropeptide substance P (SP) is known to stimulate wound healing by regulating the production of relevant cytokines as well as cell proliferation and migration. However, the therapeutic application of SP is limited by its low stability under biological conditions and oxidation during purification, formulation, and storage. To address this problem, we developed a novel formulation of SP as an SP gel, and investigated its wound healing activity both in vitro and in vivo. SP in SP gel was stable at various temperatures for up to 4 weeks. In vitro, SP gel exhibited more potential as a candidate wound-healing agent than SP alone, as evidenced by the observed increases in the proliferation and migration of human epidermal keratinocytes and human dermal fibroblasts. In vivo experiments showed that SP gel treatment enhanced the healing of full-thickness wounds in mice as compared to SP alone. These results demonstrate the benefits of SP gel as a promising topical agent for wound treatment.
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22
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The potential of human induced pluripotent stem cells for modelling diabetic wound healing in vitro. Clin Sci (Lond) 2018; 132:1629-1643. [PMID: 30108152 DOI: 10.1042/cs20171483] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 06/28/2018] [Accepted: 07/23/2018] [Indexed: 12/11/2022]
Abstract
Impaired wound healing and ulceration caused by diabetes mellitus, is a significant healthcare burden, markedly impairs quality of life for patients, and is the major cause of amputation worldwide. Current experimental approaches used to investigate the complex wound healing process often involve cultures of fibroblasts and/or keratinocytes in vitro, which can be limited in terms of complexity and capacity, or utilisation of rodent models in which the mechanisms of wound repair differ substantively from that in humans. However, advances in tissue engineering, and the discovery of strategies to reprogramme adult somatic cells to pluripotency, has led to the possibility of developing models of human skin on a large scale. Generation of induced pluripotent stem cells (iPSCs) from tissues donated by diabetic patients allows the (epi)genetic background of this disease to be studied, and the ability to differentiate iPSCs to multiple cell types found within skin may facilitate the development of more complex skin models; these advances offer key opportunities for improving modelling of wound healing in diabetes, and the development of effective therapeutics for treatment of chronic wounds.
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23
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Arias JI, Parra N, Beato C, Torres CG, Hamilton-West C, Rosas C, Ferreira A. Different Trypanosoma cruzi calreticulin domains mediate migration and proliferation of fibroblasts in vitro and skin wound healing in vivo. Arch Dermatol Res 2018; 310:639-650. [DOI: 10.1007/s00403-018-1851-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 07/10/2018] [Accepted: 08/03/2018] [Indexed: 12/19/2022]
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24
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Doeser MC, Schöler HR, Wu G. Reduction of Fibrosis and Scar Formation by Partial Reprogramming In Vivo. Stem Cells 2018; 36:1216-1225. [PMID: 29761584 DOI: 10.1002/stem.2842] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 04/08/2018] [Accepted: 04/13/2018] [Indexed: 01/02/2023]
Abstract
Transient expression of the transcription factors OCT4, SOX2, KLF4, and C-MYC (OSKM) to induce partial reprogramming while avoiding the pluripotent state and teratoma formation has recently been discussed as a strategy for regenerating damaged tissues in vivo, whereby the impact of partial reprogramming on tissue repair remains to be elucidated. Here, we activated OSKM transcription factors in cutaneous wounds of OSKM-inducible transgenic mice and found that induction of OSKM factors in excisional wounds caused a diminished fibroblast transdifferentiation to myofibroblasts and wound contraction. Gene expression analyses showed downregulation of the profibrotic marker genes transforming growth factor beta 1, Collagen I, and vascular endothelial growth factor. Consequently, histological analyses demonstrated that OSKM induction in incisional wounds resulted in reduced scar tissue formation. These data provide proof of concept that OSKM-mediated partial reprogramming in situ can diminish fibrosis and improve tissue healing with less scar formation without the risk of tumor formation. This new insight into the effects of partial reprogramming in vivo may be relevant for developing reprogramming-based regenerative therapies for tissue injury and fibrotic diseases. Stem Cells 2018;36:1216-1225.
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Affiliation(s)
- Markus C Doeser
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Münster, Germany.,Medical Faculty, University of Münster, Münster, Germany
| | - Hans R Schöler
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Münster, Germany.,Medical Faculty, University of Münster, Münster, Germany
| | - Guangming Wu
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Münster, Germany
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25
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Mahmoudian-Sani MR, Rafeei F, Amini R, Saidijam M. The effect of mesenchymal stem cells combined with platelet-rich plasma on skin wound healing. J Cosmet Dermatol 2018; 17:650-659. [PMID: 29504236 DOI: 10.1111/jocd.12512] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2018] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Mesenchymal stem cells (MSCs) are multipotent stem cells that have the potential of proliferation, high self-renewal, and the potential of multilineage differentiation. The differentiation potential of the MSCs in vivo and in vitro has caused these cells to be regarded as potentially appropriate tools for wound healing. After the burn, trauma or removal of the tumor of wide wounds is developed. Although standard treatment for skin wounds is primary healing or skin grafting, they are not always practical mainly because of limited autologous skin grafting. EVIDENCE ACQUISITIONS Directory of Open Access Journals (DOAJ), Google Scholar, PubMed (NLM), LISTA (EBSCO), and Web of Science have been searched. EVIDENCE SYNTHESIS For clinical use of the MSCs in wound healing, two key issues should be taken into account: First, engineering biocompatible scaffolds clinical use of which leads to the least amount of side effects without any immunologic response and secondly, use of stem cells secretions with the least amount of clinical complications despite their high capability of healing damage. CONCLUSION In light of the MSCs' high capability of proliferation and multilineage differentiation as well as their significant role in modulating immunity, these cells can be used in combination with tissue engineering techniques. Moreover, the MSCs' secretions can be used in cell therapy to heal many types of wounds. The combination of MSCs and PRP aids wound healing which could potentially be used to promote wound healing.
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Affiliation(s)
| | - Fatemeh Rafeei
- Student Research Committee, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Razieh Amini
- Department of Genetics and Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Massoud Saidijam
- Department of Genetics and Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
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26
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Hu MS, Cheng J, Borrelli MR, Leavitt T, Walmsley GG, Zielins ER, Hong WX, Cheung AT, Duscher D, Maan ZN, Irizarry DM, Stephan B, Parsa FD, Wan DC, Gurtner GC, Lorenz HP, Longaker MT. An Improved Humanized Mouse Model for Excisional Wound Healing Using Double Transgenic Mice. Adv Wound Care (New Rochelle) 2018; 7:11-17. [PMID: 29344430 DOI: 10.1089/wound.2017.0772] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 11/04/2017] [Indexed: 11/13/2022] Open
Abstract
Objective: Splinting full-thickness cutaneous wounds in mice has allowed for a humanized model of wound healing. Delineating the epithelial edge and assessing time to closure of these healing wounds via macroscopic visualization have remained a challenge. Approach: Double transgenic mice were created by crossbreeding K14-Cre and ROSAmT/mG reporter mice. Full-thickness excisional wounds were created in K14-Cre/ROSAmT/mG mice (n = 5) and imaged using both normal and fluorescent light on the day of surgery, and every other postoperative day (POD) until wound healing was complete. Ten blinded observers analyzed a series of images from a single representative healing wound, taken using normal or fluorescent light, to decide the POD when healing was complete. K14-Cre/ROSAmT/mG mice (n = 4) were subsequently sacrificed at the four potential days of rated wound closure to accurately determine the histological point of wound closure using microscopic fluorescence imaging. Results: Average time to wound closure was rated significantly longer in the wound series images taken using normal light, compared with fluorescent light (mean POD 13.6 vs. 11.6, *p = 0.008). Fluorescence imaging of histological samples indicated that reepithelialization was complete at 12 days postwounding. Innovation: We describe a novel technique, using double transgenic mice K14-Cre/ROSAmT/mG and fluorescence imaging, to more accurately determine the healing time of wounds in mice upon macroscopic evaluation. Conclusion: The accuracy by which wound healing can be macroscopically determined in vivo in mouse models of wound healing is significantly enhanced using K14-Cre/ROSAmT/mG double transgenic mice and fluorescence imaging.
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Affiliation(s)
- Michael S. Hu
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Justin Cheng
- Division of Plastic Surgery, Department of Surgery, University of Hawai'i, John A. Burns School of Medicine, Honolulu, Hawaii
| | - Mimi R. Borrelli
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Tripp Leavitt
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Graham G. Walmsley
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Elizabeth R. Zielins
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Wan Xing Hong
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Alexander T.M. Cheung
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Dominik Duscher
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
- Department of Plastic and Hand Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Zeshaan N. Maan
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Dre M. Irizarry
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Brad Stephan
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Fereydoun Don Parsa
- Division of Plastic Surgery, Department of Surgery, University of Hawai'i, John A. Burns School of Medicine, Honolulu, Hawaii
| | - Derrick C. Wan
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Geoffrey C. Gurtner
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Hermann Peter Lorenz
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Michael T. Longaker
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
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27
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Kim BE, Goleva E, Hall CF, Park SH, Lee UH, Brauweiler AM, Streib JE, Richers BN, Kim G, Leung DYM. Skin Wound Healing Is Accelerated by a Lipid Mixture Representing Major Lipid Components of Chamaecyparis obtusa Plant Extract. J Invest Dermatol 2017; 138:1176-1186. [PMID: 29277539 DOI: 10.1016/j.jid.2017.11.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 10/19/2017] [Accepted: 11/07/2017] [Indexed: 01/13/2023]
Abstract
In chronic nonhealing wounds, the healing process is disrupted and wounds are often infected with bacteria. About 85% of lower extremity amputations in diabetes are attributed to deep infection of foot ulcers. Therefore, infection control is critical for wound care. In this study, we analyzed lipid composition of Chamaecyparis obtusa extract, and we describe the wound-healing properties of its combination of 10 major lipid components. A 10-lipid mixture up-regulated HBD-3 and LL-37 through the olfactory receptor 2AT4 and induced phosphorylation of extracellular signal-regulated kinases and p38 mitogen-activated protein kinases in primary human keratinocytes. In addition, the 10-lipid mixture had direct bactericidal effects against Staphylococcus aureus and Streptococcus pyogenes and protected against staphylococcal α-toxin-induced keratinocyte cell death. In an animal model, the 10-lipid mixture accelerated skin wound healing and was also effective in healing wounds superinfected with S. aureus. We suggest that the 10-lipid mixture, because of its wound-healing and antimicrobial properties, can be beneficial for wound treatment.
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Affiliation(s)
- Byung Eui Kim
- Department of Pediatrics, National Jewish Health, Denver, Colorado, USA
| | - Elena Goleva
- Department of Pediatrics, National Jewish Health, Denver, Colorado, USA
| | - Clifton F Hall
- Department of Pediatrics, National Jewish Health, Denver, Colorado, USA
| | - Sang Hyun Park
- Department of Urology, Haeundae Paik Hospital, Inje University College of Medicine, Pusan, Korea
| | - Un Ha Lee
- Department of Dermatology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Anne M Brauweiler
- Department of Pediatrics, National Jewish Health, Denver, Colorado, USA
| | - Joanne E Streib
- Department of Pediatrics, National Jewish Health, Denver, Colorado, USA
| | | | | | - Donald Y M Leung
- Department of Pediatrics, National Jewish Health, Denver, Colorado, USA; Department of Pediatrics, University of Colorado, Aurora, Colorado, USA.
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28
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Trøstrup H, Lerche CJ, Christophersen LJ, Thomsen K, Jensen PØ, Hougen HP, Høiby N, Moser C. Pseudomonas aeruginosa biofilm hampers murine central wound healing by suppression of vascular epithelial growth factor. Int Wound J 2017; 15:123-132. [PMID: 29178668 DOI: 10.1111/iwj.12846] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 10/01/2017] [Indexed: 01/16/2023] Open
Abstract
Biofilm-infected wounds are clinically challenging. Vascular endothelial growth factor and host defence S100A8/A9 are crucial for wound healing but may be suppressed by biofilms. The natural course of Pseudomonas aeruginosa biofilm infection was compared in central and peripheral zones of burn-wounded, infection-susceptible BALB/c mice, which display delayed wound closure compared to C3H/HeN mice. Wounds were evaluated histopathologically 4, 7 or 10 days post-infection. Photoplanimetry evaluated necrotic areas. P. aeruginosa biofilm suppressed vascular endothelial growth factor levels centrally in BALB/c wounds but increased peripheral levels 4-7 days post-infection. Central zones of the burn wound displayed lower levels of central vascular endothelial growth factor as observed 4 and 7 days post-infection in BALB/c mice compared to their C3H/HeN counterparts. Biofilm suppressed early, centrally located S100A8/A9 in BALB/c and centrally and peripherally later on in C3H/HeN wounds as compared to uninfected mice. Peripheral polymorphonuclear-dominated inflammation and larger necrosis were observed in BALB/c wounds. In conclusion, P. aeruginosa biofilm modulates wounds by suppressing central, but inducing peripheral, vascular endothelial growth factor levels and reducing host response in wounds of BALB/c mice. This suppression is detrimental to the resolution of biofilm-infected necrosis.
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Affiliation(s)
- Hannah Trøstrup
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Christian J Lerche
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Lars J Christophersen
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Kim Thomsen
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Peter Ø Jensen
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Hans Petter Hougen
- Department of Forensic Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Niels Høiby
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Institute for Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Claus Moser
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
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29
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Hydroethanolic Extract of Strychnos pseudoquina Accelerates Skin Wound Healing by Modulating the Oxidative Status and Microstructural Reorganization of Scar Tissue in Experimental Type I Diabetes. BIOMED RESEARCH INTERNATIONAL 2017; 2017:9538351. [PMID: 29057272 PMCID: PMC5615956 DOI: 10.1155/2017/9538351] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 06/28/2017] [Accepted: 07/13/2017] [Indexed: 01/13/2023]
Abstract
The effect of topical application of ointment based on Strychnos pseudoquina hydroethanolic extract in the cutaneous wounds healing in diabetic rats was evaluated. Samples of S. pseudoquina were submitted to phytochemical prospection and in vitro antioxidant assay. Thirty Wistar rats were divided into 5 groups: Sal-wounds treated with 0.9% saline solution; VH-wounds treated with 0.6 g of lanolin cream (vehicle); SS-wounds treated with silver sulfadiazine cream (10 mg/g); ES5- and ES10-wounds treated with an ointment of S. pseudoquina extract, 5% and 10%, respectively. Fragments of wounds were removed for histological and biochemical analysis every 7 days during 21 days. ES showed equivalent levels per gram of extract of total phenols and flavonoids equal to 122.04 mg for TAE and 0.60 mg for RE. The chlorogenic acid was one of the major constituents. S. pseudoquina extract presented high antioxidant potential in vitro. ES5 and ES10 showed higher wound healing rate and higher amount of cells, blood vessels, and type III and I collagen. The oxidative stress markers were lower in the ES5 and ES10 groups, while the antioxidants enzymes levels were higher. Ointment based on S. pseudoquina extract promotes a fast and efficient cutaneous repair in diabetic rats.
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30
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Ye C, Zhang W, Jiang S, Yu Y, Zhou X, Zhu L, Xue D, He R. Platelet-derived growth factor-BB attenuates titanium-particle-induced osteolysis in vivo. Growth Factors 2016; 34:177-186. [PMID: 27776448 DOI: 10.1080/08977194.2016.1240680] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Inflammation and osteoclastogenesis play critical roles in wear-particle-induced periprosthetic osteolysis (WPO). Platelet-derived growth factor-BB (PDGF-BB) could promote osteogenesis and inhibit inflammatory response. The aim of this study was to investigate the impact of PDGF-BB on WPO. Mice were divided into four groups, namely, sham, vehicle, low-, and high-dose PDGF-BB groups. Mice in the rhPDGF-BB groups were treated with PDGF-BB at 0.25 or 1 mg/ml/kg/day. Mice in the sham and vehicle groups received PBS daily. Two weeks after surgery, calvariae were harvested. Immunohistochemical analysis and μ-CT showed that PDGF-BB significantly reduced osteoclast formation and bone resorption. ELISA showed that rhPDGF-BB decreased the secretion of TNF-α, IL-1β, and IL-6. Western blotting revealed that rhPDGF-BB stimulated the expression of osteocalcin and osteoprotegerin. Furthermore, more VEGF and CD31 proteins were observed due to PDGF-BB by immunofluorescence. In conclusion, these findings suggest that rhPDGF-BB represents a potential treatment for WPO.
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Affiliation(s)
- Chenyi Ye
- a Department of Orthopedic Surgery , the Second Affiliated Hospital, School of Medicine, Zhejiang University , Hangzhou , Zhejiang , China
| | - Wei Zhang
- a Department of Orthopedic Surgery , the Second Affiliated Hospital, School of Medicine, Zhejiang University , Hangzhou , Zhejiang , China
| | - Shuai Jiang
- a Department of Orthopedic Surgery , the Second Affiliated Hospital, School of Medicine, Zhejiang University , Hangzhou , Zhejiang , China
| | - Yuanbin Yu
- a Department of Orthopedic Surgery , the Second Affiliated Hospital, School of Medicine, Zhejiang University , Hangzhou , Zhejiang , China
| | - Xiaoyu Zhou
- a Department of Orthopedic Surgery , the Second Affiliated Hospital, School of Medicine, Zhejiang University , Hangzhou , Zhejiang , China
| | - Ling Zhu
- a Department of Orthopedic Surgery , the Second Affiliated Hospital, School of Medicine, Zhejiang University , Hangzhou , Zhejiang , China
| | - Deting Xue
- a Department of Orthopedic Surgery , the Second Affiliated Hospital, School of Medicine, Zhejiang University , Hangzhou , Zhejiang , China
| | - Rongxin He
- a Department of Orthopedic Surgery , the Second Affiliated Hospital, School of Medicine, Zhejiang University , Hangzhou , Zhejiang , China
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31
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Effect of Topical Administration of Fractions and Isolated Molecules from Plant Extracts on Skin Wound Healing: A Systematic Review of Murine Experimental Models. Mediators Inflamm 2016; 2016:4916068. [PMID: 27829707 PMCID: PMC5086515 DOI: 10.1155/2016/4916068] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 06/16/2016] [Indexed: 12/21/2022] Open
Abstract
Background and Purpose. Skin wound healing is a dynamic process driven by molecular events responsible for the morphofunctional repair of the injured tissue. In a systematic review, we analyzed the relevance of plant fractions and isolates on skin wound healing. By revising preclinical investigations with murine models, we investigated if the current evidence could support clinical trials. Methods. Studies were selected in the MEDLINE/PubMed and Scopus databases according to the PRISMA statement. All 32 identified studies were submitted to data extraction and the methodological bias was investigated according to ARRIVE strategy. Results. The studies demonstrated that plant fractions and isolates are able to modulate the inflammatory process during skin wound healing, being also effective in attenuating the oxidative tissue damage in the scar tissue and stimulating cell proliferation, neoangiogenesis, collagen synthesis, granulation tissue expansion, reepithelialization, and the wound closure rate. However, we identified serious methodological flaws in all studies, such as the high level of reporting bias and absence of standardized experimental designs, analytical methods, and outcome measures. Conclusion. Considering these limitations, the current evidence generated from flawed methodological animal studies makes it difficult to determine the relevance of herbal medicines to treat skin wounds and derails conducting clinical studies.
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32
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Das S, Majid M, Baker AB. Syndecan-4 enhances PDGF-BB activity in diabetic wound healing. Acta Biomater 2016; 42:56-65. [PMID: 27381525 DOI: 10.1016/j.actbio.2016.07.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 06/28/2016] [Accepted: 07/01/2016] [Indexed: 01/13/2023]
Abstract
UNLABELLED Non-healing ulcers are a common consequence of long-term diabetes and severe peripheral vascular disease. These non-healing wounds are a major source of morbidity in patients with diabetes and place a heavy financial burden on the healthcare system. Growth factor therapies are an attractive strategy for enhancing wound closure in non-healing wounds but have only achieved mixed results in clinical trials. Platelet derived growth factor-BB (PDGF-BB) is the only currently approved growth factor therapy for non-healing wounds. However, PDGF-BB therapy is not effective in many patients and requires high doses that increase the potential for side effects. In this work, we demonstrate that syndecan-4 delivered in a proteoliposomal formulation enhances PDGF-BB activity in diabetic wound healing. In particular, syndecan-4 proteoliposomes enhance the migration of keratinocytes derived from patients with diabetes. In addition, syndecan-4 proteoliposomes sensitize keratinocytes to PDGF-BB stimulation, enhancing the intracellular signaling response to PDGF-BB. We further demonstrated that co-therapy with syndecan-4 proteoliposomes enhanced wound closure in diabetic, hyperlipidemic ob/ob mice. Wounds treated with both syndecan-4 proteoliposomes and PDGF-BB had increased re-epithelization and angiogenesis in comparison to wounds treated with PDGF-BB alone. Moreover, the wounds treated with syndecan-4 proteoliposomes and PDGF-BB also had increased M2 macrophages and reduced M1 macrophages, suggesting syndecan-4 delivery induces immunomodulation within the healing wounds. Together our findings support that syndecan-4 proteoliposomes markedly improve PDGF-BB efficacy for wound healing and may be useful in enhancing treatments for non-healing wounds. STATEMENT OF SIGNIFICANCE Non-healing wounds are major healthcare issue for patients with diabetes and peripheral vascular disease. Growth factor therapies have potential for healing chronic wounds but have not been effective for many patients. PDGF-BB is currently the only approved growth factor for enhancing wound healing. However, it has not seen widespread adoption due to limited efficacy and high cost. In this work, we have developed an enhancing agent that improves the activity of PDGF-BB in promoting wound healing in animals with diabetes. This co-therapy may be useful in improving the efficacy of PDGFBB and enhance its safety through lowering the dose of growth factor needed to improve wound healing.
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Affiliation(s)
- Subhamoy Das
- Department of Biomedical Engineering, University of Texas, Austin, TX, United States
| | - Marjan Majid
- Department of Biomedical Engineering, University of Texas, Austin, TX, United States
| | - Aaron B Baker
- Department of Biomedical Engineering, University of Texas, Austin, TX, United States; Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX, United States; Institute for Biomaterials, Drug Delivery and Regenerative Medicine, University of Texas at Austin, Austin, TX, United States; Institute for Computational Engineering and Sciences, University of Texas at Austin, Austin, TX, United States.
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D'Esposito V, Passaretti F, Perruolo G, Ambrosio MR, Valentino R, Oriente F, Raciti GA, Nigro C, Miele C, Sammartino G, Beguinot F, Formisano P. Platelet-Rich Plasma Increases Growth and Motility of Adipose Tissue-Derived Mesenchymal Stem Cells and Controls Adipocyte Secretory Function. J Cell Biochem 2016; 116:2408-18. [PMID: 26012576 PMCID: PMC5042100 DOI: 10.1002/jcb.25235] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Accepted: 05/14/2015] [Indexed: 12/12/2022]
Abstract
Adipose tissue‐derived mesenchymal stem cells (Ad‐MSC) and platelet derivatives have been used alone or in combination to achieve regeneration of injured tissues. We have tested the effect of platelet‐rich plasma (PRP) on Ad‐MSC and adipocyte function. PRP increased Ad‐MSC viability, proliferation rate and G1‐S cell cycle progression, by at least 7‐, 2‐, and 2.2‐fold, respectively, and reduced caspase 3 cleavage. Higher PRP concentrations or PRPs derived from individuals with higher platelet counts were more effective in increasing Ad‐MSC growth. PRP also accelerated cell migration by at least 1.5‐fold. However, PRP did not significantly affect mature adipocyte viability, differentiation and expression levels of PPAR‐γ and AP‐2 mRNAs, while it increased leptin production by 3.5‐fold. Interestingly, PRP treatment of mature adipocytes also enhanced the release of Interleukin (IL)‐6, IL‐8, IL‐10, Interferon‐γ, and Vascular Endothelial Growth Factor. Thus, data are consistent with a stimulatory effect of platelet derivatives on Ad‐MSC growth and motility. Moreover, PRP did not reduce mature adipocyte survival and increased the release of pro‐angiogenic factors, which may facilitate tissue regeneration processes. © 2015 The Authors. Journal of Cellular Biochemistry Published by Wiley Periodicals, Inc. J. Cell. Biochem. 116: 2408–2418, 2015. © 2015 The Authors. Journal of Cellular Biochemistry Published by Wiley Periodicals, Inc.
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Affiliation(s)
- Vittoria D'Esposito
- Department of Translational Medicine, Federico II, University of Naples, Naples, Italy
| | - Federica Passaretti
- Department of Translational Medicine, Federico II, University of Naples, Naples, Italy
| | - Giuseppe Perruolo
- Institute of Experimental Endocrinology and Oncology, National Council of Research (CNR), Naples, Italy
| | | | - Rossella Valentino
- Institute of Experimental Endocrinology and Oncology, National Council of Research (CNR), Naples, Italy
| | - Francesco Oriente
- Department of Translational Medicine, Federico II, University of Naples, Naples, Italy
| | - Gregory A Raciti
- Institute of Experimental Endocrinology and Oncology, National Council of Research (CNR), Naples, Italy
| | - Cecilia Nigro
- Institute of Experimental Endocrinology and Oncology, National Council of Research (CNR), Naples, Italy
| | - Claudia Miele
- Institute of Experimental Endocrinology and Oncology, National Council of Research (CNR), Naples, Italy
| | - Gilberto Sammartino
- Department of Neurosciences, Reproductive and Odonto-stomatological Sciences, Federico II University of Naples, Naples, Italy
| | - Francesco Beguinot
- Department of Translational Medicine, Federico II, University of Naples, Naples, Italy.,Institute of Experimental Endocrinology and Oncology, National Council of Research (CNR), Naples, Italy
| | - Pietro Formisano
- Department of Translational Medicine, Federico II, University of Naples, Naples, Italy.,Institute of Experimental Endocrinology and Oncology, National Council of Research (CNR), Naples, Italy
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Jin IG, Kim JH, Wu HG, Hwang SJ. Effect of mesenchymal stem cells and platelet-derived growth factor on the healing of radiation induced ulcer in rats. Tissue Eng Regen Med 2016; 13:78-90. [PMID: 30603388 DOI: 10.1007/s13770-015-0055-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Revised: 07/26/2015] [Accepted: 08/24/2015] [Indexed: 01/05/2023] Open
Abstract
Radiation-induced skin ulceration is a frequent complication of radiation therapy. This study investigated the effects of rat mesenchymal stem cells (rMSCs) and platelet-derived growth factor (PDGF) on the healing of radiation-induced soft tissue injury. Sprague-Dawley rats (n=17) were irradiated on the right and left buttocks with a single dose of 50 Gy. The right buttocks were administered with phosphatebuffered solution as a control. The left buttocks were administered with either rMSCs (2×106 cells), PDGF (8 µg), or PDGF combined with rMSCs. Administration was done at three weeks after irradiation. Wound healing was analyzed by calculating the percentage of residual ulcerated skin area compared to the total irradiated area during the five week healing period after administration. Modified skin scores were also assessed. Finally, skin lesions were histologically evaluated. More than 40% of the irradiated skin area within the irradiated zone underwent ulceration within 16 days postirradiation, with peak ulceration exceeding 50% around three weeks post-irradiation. Administration of rMSCs or PDGF alone did not confer any significant healing effect. The combined rMSCs+PDGF treatment significantly reduced the wound size compared with the nontreated control up to two weeks postinjection. Regarding the histological examination, lesions administered with PDGF (either alone or mixed with rMSCs) resulted in a greater deposition of highly organized collagen fibers throughout the dermis layer, compared with the control. In conclusion, the combined administration of rMSCs and PDGF efficiently enhanced the healing of radiation-induced skin ulceration.
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Affiliation(s)
- Im Geon Jin
- 1Department of Oral & Maxillofacial Surgery, School of Dentistry, Brain Korea 21 Plus, Dental Research Institute, Seoul National University, Seoul, Korea
| | - Jin Ho Kim
- 2Department of Radiation Oncology, Seoul National University Hospital, Seoul, Korea
| | - Hong-Gyun Wu
- 2Department of Radiation Oncology, Seoul National University Hospital, Seoul, Korea
| | - Soon Jung Hwang
- 1Department of Oral & Maxillofacial Surgery, School of Dentistry, Brain Korea 21 Plus, Dental Research Institute, Seoul National University, Seoul, Korea
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Satish L. Chemokines as Therapeutic Targets to Improve Healing Efficiency of Chronic Wounds. Adv Wound Care (New Rochelle) 2015; 4:651-659. [PMID: 26543679 DOI: 10.1089/wound.2014.0602] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Significance: Impaired wound healing leading to chronic wounds is an important clinical problem that needs immediate attention to develop new effective therapies. Members of the chemokine family seem to be attractive and amenable to stimulate the healing process in chronic wounds. Targeting specific chemokines and/or their receptors has the potential to modify chronic inflammation to acute inflammation, which will hasten the healing process. Recent Advances: Over the years, expression levels of various chemokines and their receptors have been identified as key players in the inflammatory phase of wound healing. In addition, they contribute to regulating other phases of wound healing making them key targets for novel therapies. Understanding the signaling pathways of these chemokines will provide valuable clues for modulating their function to enhance the wound healing process. Critical Issues: Inflammation, an important first-stage process in wound healing, is dysregulated in chronic wounds; emerging studies show that chemokines play a crucial role in regulating inflammation. The knowledge gained so far is still limited in understanding the enormous complexity of the chemokine network during inflammation not just in chronic wounds but also in acute (normal) wounds. A much better understanding of the individual chemokines will pave the way for better targets and therapies to improve the healing efficiency of chronic wounds. Future Directions: Effective understanding of the interaction of chemokines and their receptors during chronic wound healing would facilitate the design of novel therapeutic drugs. Development of chemokine-based drugs targeting specific inflammatory cells will be invaluable in the treatment of chronic wounds, in which inflammation plays a major role.
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Affiliation(s)
- Latha Satish
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
- McGowan Institute of Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
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