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Pan C, Hao X, Deng X, Lu F, Liu J, Hou W, Xu T. The roles of Hippo/YAP signaling pathway in physical therapy. Cell Death Discov 2024; 10:197. [PMID: 38670949 PMCID: PMC11053014 DOI: 10.1038/s41420-024-01972-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/16/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Cellular behavior is regulated by mechanical signals within the cellular microenvironment. Additionally, changes of temperature, blood flow, and muscle contraction also affect cellular state and the development of diseases. In clinical practice, physical therapy techniques such as ultrasound, vibration, exercise, cold therapy, and hyperthermia are commonly employed to alleviate pain and treat diseases. However, the molecular mechanism about how these physiotherapy methods stimulate local tissues and control gene expression remains unknow. Fortunately, the discovery of YAP filled this gap, which has been reported has the ability to sense and convert a wide variety of mechanical signals into cell-specific programs for transcription, thereby offering a fresh perspective on the mechanisms by which physiotherapy treat different diseases. This review examines the involvement of Hippo/YAP signaling pathway in various diseases and its role in different physical therapy approaches on diseases. Furthermore, we explore the potential therapeutic implications of the Hippo/YAP signaling pathway and address the limitations and controversies surrounding its application in physiotherapy.
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Affiliation(s)
- Chunran Pan
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoxia Hao
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaofeng Deng
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fan Lu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiawei Liu
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenjie Hou
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Xu
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Short WD, Rae M, Lu T, Padon B, Prajapati TJ, Faruk F, Olutoye OO, Yu L, Bollyky P, Keswani SG, Balaji S. Endogenous Interleukin-10 Contributes to Wound Healing and Regulates Tissue Repair. J Surg Res 2023; 285:26-34. [PMID: 36640607 PMCID: PMC9993344 DOI: 10.1016/j.jss.2022.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 11/22/2022] [Accepted: 12/14/2022] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Interleukin-10 (IL-10) is essential in fetal regenerative wound healing and likewise promotes a regenerative phenotype in adult dermal wounds. However, the role of endogenous IL-10 in postnatal dermal wound healing is not well-established. We sought to determine the function of endogenous IL-10 in murine full thickness excisional wounds that are splinted to prevent contracture and mimic human patterns of wound closure. METHODS Full-thickness excisional wounds were made in wildtype (WT) and IL-10-/- mice on a C57BL/6J background (F/M, 8 wk old). In a subset of wounds, contraction was prevented by splinting with silicone stents (stenting) and maintaining a moist wound microenvironment using a semiocclusive dressing. Wounds were examined for re-epithelialization, granulation tissue deposition, and inflammatory cell infiltrate at day 7 and fibrosis and scarring at day 30 postwounding. RESULTS We observed no difference in wound healing rate between WT and IL-10-/- mice in either the stented or unstented group. At day 7, unstented IL-10-/- wounds had a larger granulation tissue area and more inflammatory infiltrate than their WT counterparts. However, we did observe more F4/80+ cell infiltrate in stented IL-10-/- wounds at day 7. At day 30, stented wounds had increased scar area and epithelial thickness compared to unstented wounds. CONCLUSIONS These data suggest that endogenous IL-10 expression does not alter closure of full thickness excisional wounds when wound hydration and excessive contraction of murine skin are controlled. However, the loss of IL-10 leads to increased inflammatory cell infiltration and scarring. These new findings suggest that IL-10 contributes to the regulation of inflammation without compromising the healing response. These data combined with previous reports of increased rates of healing in IL-10-/- mice wounds not controlled for hydration and contraction suggest an important role for murine wound healing models used in research studies of molecular mechanisms that regulate healing.
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Affiliation(s)
- Walker D Short
- Laboratory for Regenerative Tissue Repair, Division of Pediatric Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Meredith Rae
- Laboratory for Regenerative Tissue Repair, Division of Pediatric Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas; Department of Pediatrics, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Thomas Lu
- Laboratory for Regenerative Tissue Repair, Division of Pediatric Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas; Department of Pediatrics, McGovern Medical School, Houston, Texas
| | - Benjamin Padon
- Laboratory for Regenerative Tissue Repair, Division of Pediatric Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Tanuj J Prajapati
- Laboratory for Regenerative Tissue Repair, Division of Pediatric Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Fayiz Faruk
- Laboratory for Regenerative Tissue Repair, Division of Pediatric Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Oluyinka O Olutoye
- Laboratory for Regenerative Tissue Repair, Division of Pediatric Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Ling Yu
- Laboratory for Regenerative Tissue Repair, Division of Pediatric Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Paul Bollyky
- Department of Medicine, Stanford University, Division of Infectious Diseases, Stanford, California
| | - Sundeep G Keswani
- Laboratory for Regenerative Tissue Repair, Division of Pediatric Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Swathi Balaji
- Laboratory for Regenerative Tissue Repair, Division of Pediatric Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas.
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Shiraishi M, Suzuki K, Yamaguchi A. Effect of mechanical tension on fibroblast transcriptome profile and regulatory mechanisms of myocardial collagen turnover. FASEB J 2023; 37:e22841. [PMID: 36856975 DOI: 10.1096/fj.202201899r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 02/01/2023] [Accepted: 02/14/2023] [Indexed: 03/02/2023]
Abstract
Excess deposition of extracellular matrix in the myocardium is a predictor of reduced left ventricular function. Although reducing the hemodynamic load is known to improve myocardial fibrosis, the mechanisms underlying the reversal of the fibrosis have not been elucidated. We focused on the elasticity of myocardial tissue, which is assumed to influence the fibroblast phenotype. Normal and fibrotic myocardium were cultured in 16 kPa and 64 kPa silicone gel-coated dishes supplemented with recombinant TGFβ protein, respectively. Matrix-degrading myocardium was cultured in 64 kPa silicone gel-coated dishes with recombinant TGFβ protein and then in 16 kPa silicone gel-coated dishes. Cardiac fibroblasts were cultured in this three-part in vitro pathological models and compared. Fibroblasts differentiated into activated or matrix-degrading types in response to the pericellular environment. Comprehensive gene expression analysis of fibroblasts in each in vitro condition showed Selenbp1 to be one of the genes responsible for regulating differentiation of fibroblasts. In vitro knockdown of Selenbp1 enhanced fibroblast activation and inhibited conversion to the matrix-degrading form. In vivo knockdown of Selenbp1 resulted in structural changes in the left ventricle associated with progressive tissue fibrosis and left ventricular diastolic failure. Selenbp1 is involved in regulating fibroblast differentiation and appears to be one of the major molecules regulating collagen turnover in cardiac fibrosis.
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Affiliation(s)
- Manabu Shiraishi
- Department of Cardiovascular Surgery, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Ken Suzuki
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
- National Cerebral and Cardiovascular Center Hospital, Osaka, Japan
| | - Atsushi Yamaguchi
- Department of Cardiovascular Surgery, Saitama Medical Center, Jichi Medical University, Saitama, Japan
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Sun W, Liu Z, Xu J, Cheng Y, Yin R, Ma L, Li H, Qian X, Zhang H. 3D skin models along with skin-on-a-chip systems: A critical review. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Mechanical Stretch Induced Skin Regeneration: Molecular and Cellular Mechanism in Skin Soft Tissue Expansion. Int J Mol Sci 2022; 23:ijms23179622. [PMID: 36077018 PMCID: PMC9455829 DOI: 10.3390/ijms23179622] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/16/2022] [Accepted: 08/23/2022] [Indexed: 11/17/2022] Open
Abstract
Skin soft tissue expansion is one of the most basic and commonly used techniques in plastic surgery to obtain excess skin for a variety of medical uses. However, skin soft tissue expansion is faced with many problems, such as long treatment process, poor skin quality, high retraction rate, and complications. Therefore, a deeper understanding of the mechanisms of skin soft tissue expansion is needed. The key to skin soft tissue expansion lies in the mechanical stretch applied to the skin by an inflatable expander. Mechanical stimulation activates multiple signaling pathways through cellular adhesion molecules and regulates gene expression profiles in cells. Meanwhile, various types of cells contribute to skin expansion, including keratinocytes, dermal fibroblasts, and mesenchymal stem cells, which are also regulated by mechanical stretch. This article reviews the molecular and cellular mechanisms of skin regeneration induced by mechanical stretch during skin soft tissue expansion.
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Zhu J, Quan H. Adipose-derived stem cells-derived exosomes facilitate cutaneous wound healing by delivering XIST and restoring discoidin domain receptor 2. Cytokine 2022; 158:155981. [PMID: 35952595 DOI: 10.1016/j.cyto.2022.155981] [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: 05/23/2022] [Revised: 07/22/2022] [Accepted: 07/25/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Adipose-derived stem cells (ADSCs) and their derived exosomes (ADSC-Exos) have shown potential functions in tissue repair. This study focuses on the effects of ADSCs-Exos on cutaneous wound healing and the potential involvement of the long non-coding RNA (lncRNA) XIST/microRNA-96-5p (miR-96-5p)/discoidin domain receptor 2 (DDR2) axis. METHODS Exos were isolated from the ADSCs and identified. A mouse model of full-thickness skin wounds was established. The mice were treated with ADSC-Exos to evaluate the function of ADSC-Exos in wound healing. Mouse dermal fibroblasts (MDFs) were co-cultured with the ADSC-Exos for in vitro experiments. The most differentially expressed lncRNAs in mouse skin tissues after ADSC-Exo treatment were screened by microarray analysis. The downstream molecules were analyzed by bioinformatics tools. Gain- and loss-of-function studies were performed to examine the functions of the XIST/miR-96-5p/DDR2 axis in wound healing. RESULTS ADSC-Exos facilitated wound healing in mice, reduced inflammatory infiltration, and increased collagen deposition in the wound skin tissues. In vitro, the ADSC-Exos promoted proliferation, migration of the MDFs. XIST was the most upregulated lncRNA in MDFs after ADSC-Exo treatment. Downregulation of XIST suppressed the promoting role of ADSC-Exos in wound healing. XIST bound to miR-96-5p to restore the expression of DDR2 mRNA. Either silencing of miR-96-5p or overexpression of DDR2 restored the promoting functions of ADSC-Exos in proliferation and migration of MDFs. CONCLUSION This study demonstrates that ADSC-Exos-carried XIST accelerates cutaneous wound healing through suppressing miR-96-5p and restoring the DDR2 expression.
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Affiliation(s)
- Jinglin Zhu
- Department of Plastic Surgery 18, Plastic Surgery Hospital (Institute), Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100144, PR China
| | - Hongguang Quan
- Department of General Surgery, Xuzhou Hospital of Traditional Chinese Medicine, the Affiliated Xuzhou Hospital of Nanjing University of Chinese Medicine, Xuzhou 221000, Jiangsu, PR China.
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Knight KM, King GE, Palcsey SL, Suda A, Liang R, Moalli PA. Mesh Deformation: a mechanism underlying polypropylene prolapse mesh complications in vivo. Acta Biomater 2022; 148:323-335. [PMID: 35671876 DOI: 10.1016/j.actbio.2022.05.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 05/12/2022] [Accepted: 05/31/2022] [Indexed: 12/12/2022]
Abstract
Polypropylene meshes used in pelvic organ prolapse (POP) repair are hampered by complications. Most POP meshes are highly unstable after tensioning ex vivo, as evidenced by marked deformations (pore collapse and wrinkling) that result in altered structural properties and material burden. By intentionally introducing collapsed pores and wrinkles into a mesh that normally has open pores and remains relatively flat after implantation, we reproduce mesh complications in vivo. To do this, meshes were implanted onto the vagina of rhesus macaques in nondeformed (flat) vs deformed (pore collapse +/- wrinkles) configurations and placed on tension. Twelve weeks later, animals with deformed meshes had two complications, 1) mesh exposure through the vaginal epithelium, and 2) myofibroblast proliferation with fibrosis - a mechanism of pain. The overarching response to deformed mesh was vaginal thinning associated with accelerated apoptosis, reduced collagen content, increased proteolysis, deterioration of mechanical integrity, and loss of contractile function consistent with stress shielding - a precursor to mesh exposure. Regional differences were observed, however, with some areas demonstrating myofibroblast proliferation and matrix deposition. Variable mechanical cues imposed by deformed meshes likely induce these two disparate responses. Utilizing meshes associated with uniform stresses on the vagina by remaining flat with open pores after tensioning is critical to improving outcomes. STATEMENT OF SIGNIFICANCE: Pain and exposure are the two most reported complications associated with the use of polypropylene mesh in urogynecologic procedures. Most meshes have unstable geometries as evidenced by pore collapse and wrinkling after tensioning ex vivo, recapitulating what is observed in meshes excised from women with complications in vivo. We demonstrate that collapsed pores and wrinkling results in two distinct responses 1) mesh exposure associated with tissue degradation and atrophy and 2) myofibroblast proliferation and matrix deposition consistent with fibrosis, a tissue response associated with pain. In conclusion, mesh deformation leads to areas of tissue degradation and myofibroblast proliferation, the likely mechanisms of mesh exposure and pain, respectively. These data corroborate that mesh implantation in a flat configuration with open pores is a critical factor for reducing complications in mesh-augmented surgeries.
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Affiliation(s)
- Katrina M Knight
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA; Magee-Womens Research Institute, Pittsburgh, PA.
| | | | | | - Amanda Suda
- School of Medicine, University of Pittsburgh, Pittsburgh, PA
| | - Rui Liang
- Magee-Womens Research Institute, Pittsburgh, PA; Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA
| | - Pamela A Moalli
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA; Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA; Division of Urogynecology and Reconstructive Pelvic Surgery, Magee-Womens Hospital of the University of Pittsburgh, Pittsburgh, PA
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Parikh UM, Mentz J, Collier I, Davis MJ, Abu-Ghname A, Colchado D, Short WD, King A, Buchanan EP, Balaji S. Strategies to Minimize Surgical Scarring: Translation of Lessons Learned from Bedside to Bench and Back. Adv Wound Care (New Rochelle) 2022; 11:311-329. [PMID: 34416825 DOI: 10.1089/wound.2021.0010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Significance: An understanding of the physiology of wound healing and scarring is necessary to minimize surgical scar formation. By reducing tension across the healing wound, eliminating excess inflammation and infection, and encouraging perfusion to healing areas, surgeons can support healing and minimize scarring. Recent Advances: Preoperatively, newer techniques focused on incision placement to minimize tension, skin sterilization to minimize infection and inflammation, and control of comorbid factors to promote a healing process with minimal scarring are constantly evolving. Intraoperatively, measures like layered closure, undermining, and tissue expansion can be taken to relieve tension across the healing wound. Appropriate suture technique and selection should be considered, and finally, there are new surgical technologies available to reduce tension across the closure. Postoperatively, the healing process can be supported as proliferation and remodeling take place within the wound. A balance of moisture control, tension reduction, and infection prevention can be achieved with dressings, ointments, and silicone. Vitamins and corticosteroids can also affect the scarring process by modulating the cellular factors involved in healing. Critical Issues: Healing with no or minimal scarring is the ultimate goal of wound healing research. Understanding how mechanical tension, inflammation and infection, and perfusion and hypoxia impact profibrotic pathways allows for the development of therapies that can modulate cytokine response and the wound extracellular microenvironment to reduce fibrosis and scarring. Future Directions: New tension-off loading topical treatments, laser, and dermabrasion devices are under development, and small molecule therapeutics have demonstrated scarless wound healing in animal models, providing a promising new direction for future research aimed to minimize surgical scarring.
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Affiliation(s)
- Umang M. Parikh
- Division of Pediatric Surgery, Michael E. DeBakey Department of Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - James Mentz
- Division of Plastic Surgery, Michael E. DeBakey Department of Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - Ian Collier
- Division of Plastic Surgery, Michael E. DeBakey Department of Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - Matthew J. Davis
- Division of Plastic Surgery, Michael E. DeBakey Department of Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - Amjed Abu-Ghname
- Division of Plastic Surgery, Michael E. DeBakey Department of Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - Daniel Colchado
- Division of Pediatric Surgery, Michael E. DeBakey Department of Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
- Division of Plastic Surgery, Michael E. DeBakey Department of Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - Walker D. Short
- Division of Pediatric Surgery, Michael E. DeBakey Department of Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - Alice King
- Division of Pediatric Surgery, Michael E. DeBakey Department of Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - Edward P. Buchanan
- Division of Plastic Surgery, Michael E. DeBakey Department of Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - Swathi Balaji
- Division of Pediatric Surgery, Michael E. DeBakey Department of Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
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Yannas IV, Tzeranis DS. Mammals fail to regenerate organs when wound contraction drives scar formation. NPJ Regen Med 2021; 6:39. [PMID: 34294726 PMCID: PMC8298605 DOI: 10.1038/s41536-021-00149-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 07/07/2021] [Indexed: 12/19/2022] Open
Abstract
To understand why mammals generally do not regenerate injured organs, we considered the exceptional case of spontaneous skin regeneration in the early lamb fetus. Whereas during the early fetal stage skin wounds heal by regeneration, in the late fetal stage, and after birth, skin wounds close instead by scar formation. We review independent evidence that this switch in wound healing response coincides with the onset of wound contraction, which is also enabled during late fetal gestation. The crucial role of wound contraction in determining the wound healing outcome in adults has been demonstrated in three mammalian models of severe injury (excised guinea pig skin, transected rat sciatic nerve, excised rabbit conjunctival stroma) where grafting the injury with DRT, a contraction-blocking scaffold of highly-specific structure, altered significantly the wound healing outcome. While spontaneous healing resulted in scar formation in these animal models, DRT grafting significantly reduced the extent of wound contraction, prevented scar synthesis, and resulted in partial regeneration. These findings, as well as independent data from species that heal spontaneously via regeneration, point to a striking hypothesis: The process of regeneration lies dormant in mammals until appropriately activated by injury. In spontaneous wound healing of the late fetus and in adult mammals, wound contraction impedes such endogenous regeneration mechanisms. However, engineered treatments, such as DRT, that block wound contraction can cancel its effects and favor wound healing by regeneration instead of scar formation.
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Affiliation(s)
- Ioannis V Yannas
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Dimitrios S Tzeranis
- Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, Cyprus
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Cyclic stretching-induced epithelial cell reorientation is driven by microtubule-modulated transverse extension during the relaxation phase. Sci Rep 2021; 11:14803. [PMID: 34285275 PMCID: PMC8292395 DOI: 10.1038/s41598-021-93987-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 06/29/2021] [Indexed: 11/29/2022] Open
Abstract
Many types of adherent cells are known to reorient upon uniaxial cyclic stretching perpendicularly to the direction of stretching to facilitate such important events as wound healing, angiogenesis, and morphogenesis. While this phenomenon has been documented for decades, the underlying mechanism remains poorly understood. Using an on-stage stretching device that allowed programmable stretching with synchronized imaging, we found that the reorientation of NRK epithelial cells took place primarily during the relaxation phase when cells underwent rapid global retraction followed by extension transverse to the direction of stretching. Inhibition of myosin II caused cells to orient along the direction of stretching, whereas disassembly of microtubules enhanced transverse reorientation. Our results indicate distinct roles of stretching and relaxation in cell reorientation and implicate a role of myosin II-dependent contraction via a microtubule-modulated mechanism. The importance of relaxation phase also explains the difference between the responses to cyclic and static stretching.
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Shiwarski DJ, Tashman JW, Tsamis A, Bliley JM, Blundon MA, Aranda-Michel E, Jallerat Q, Szymanski JM, McCartney BM, Feinberg AW. Fibronectin-based nanomechanical biosensors to map 3D surface strains in live cells and tissue. Nat Commun 2020; 11:5883. [PMID: 33208732 PMCID: PMC7675982 DOI: 10.1038/s41467-020-19659-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 10/19/2020] [Indexed: 01/07/2023] Open
Abstract
Mechanical forces are integral to cellular migration, differentiation and tissue morphogenesis; however, it has proved challenging to directly measure strain at high spatial resolution with minimal perturbation in living sytems. Here, we fabricate, calibrate, and test a fibronectin (FN)-based nanomechanical biosensor (NMBS) that can be applied to the surface of cells and tissues to measure the magnitude, direction, and strain dynamics from subcellular to tissue length-scales. The NMBS is a fluorescently-labeled, ultra-thin FN lattice-mesh with spatial resolution tailored by adjusting the width and spacing of the lattice from 2-100 µm. Time-lapse 3D confocal imaging of the NMBS demonstrates 2D and 3D surface strain tracking during mechanical deformation of known materials and is validated with finite element modeling. Analysis of the NMBS applied to single cells, cell monolayers, and Drosophila ovarioles highlights the NMBS's ability to dynamically track microscopic tensile and compressive strains across diverse biological systems where forces guide structure and function.
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Affiliation(s)
- Daniel J Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Joshua W Tashman
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Alkiviadis Tsamis
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Jaci M Bliley
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Malachi A Blundon
- Department of Biology, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Edgar Aranda-Michel
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Quentin Jallerat
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - John M Szymanski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Brooke M McCartney
- Department of Biology, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Adam W Feinberg
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA.
- Department of Materials Science & Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA.
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An update to the advances in understanding distraction histogenesis: From biological mechanisms to novel clinical applications. J Orthop Translat 2020. [DOI: 10.1016/j.jot.2020.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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13
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El-Hattab MY, Nagumo Y, Gourronc FA, Klingelhutz AJ, Ankrum JA, Sander EA. Human Adipocyte Conditioned Medium Promotes In Vitro Fibroblast Conversion to Myofibroblasts. Sci Rep 2020; 10:10286. [PMID: 32581231 PMCID: PMC7314785 DOI: 10.1038/s41598-020-67175-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 06/03/2020] [Indexed: 12/15/2022] Open
Abstract
Adipocytes and adipose tissue derived cells have been investigated for their potential to contribute to the wound healing process. However, the details of how these cells interact with other essential cell types, such as myofibroblasts/fibroblasts, remain unclear. Using a novel in-vitro 3D human adipocyte/pre-adipocyte spheroid model, we investigated whether adipocytes and their precursors (pre-adipocytes) secrete factors that affect human dermal fibroblast behavior. We found that both adipocyte and pre-adipocyte conditioned medium induced the migration of fibroblasts, but only adipocyte conditioned medium induced fibroblast differentiation into a highly contractile, collagen producing myofibroblast phenotype. Furthermore, adipocyte mediated myofibroblast induction occurred through a TGF-β independent mechanism. Our findings contribute to a better understanding on the involvement of adipose tissue in wound healing, and may help to uncover and develop fat-related wound healing treatments.
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Affiliation(s)
- Mariam Y El-Hattab
- Roy J. Carver Department of Biomedical Engineering, College of Engineering, University of Iowa, Iowa City, IA, USA
| | - Yoshiaki Nagumo
- Roy J. Carver Department of Biomedical Engineering, College of Engineering, University of Iowa, Iowa City, IA, USA
- Department of Plastic Surgery, Kindai University, Faculty of Medicine, Higashiosaka, Osaka, Japan
| | - Francoise A Gourronc
- Department of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Aloysius J Klingelhutz
- Department of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
- Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA, USA
| | - James A Ankrum
- Roy J. Carver Department of Biomedical Engineering, College of Engineering, University of Iowa, Iowa City, IA, USA.
- Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA, USA.
| | - Edward A Sander
- Roy J. Carver Department of Biomedical Engineering, College of Engineering, University of Iowa, Iowa City, IA, USA.
- Department of Orthopedics and Rehabilitation, Carver College of Medicine, University of Iowa, Iowa City, IA, USA.
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Bik L, van Doorn MBA, Biskup E, Ortner VK, Haedersdal M, Olesen UH. Electronic Pneumatic Injection-Assisted Dermal Drug Delivery Visualized by Ex Vivo Confocal Microscopy. Lasers Surg Med 2020; 53:141-147. [PMID: 32515075 PMCID: PMC7891353 DOI: 10.1002/lsm.23279] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 05/05/2020] [Accepted: 05/23/2020] [Indexed: 12/14/2022]
Abstract
Background and Objectives Electronic pneumatic injection (EPI) is a technique for dermal drug delivery, which is increasingly being used in clinical practice. However, only few studies have been reported on cutaneous drug distribution and related clinical endpoints. We aimed to visualize the immediate cutaneous drug distribution, changes in skin architecture, and related clinical endpoint of EPI. Study Design/Materials and Methods Acridine orange (AO) solution was administered to ex vivo porcine skin by EPI at pressure levels from 4 to 6 bar with a fixed injection volume of 50 µl and nozzle size of 200 µm. Immediate cutaneous distribution was visualized using ex vivo confocal microscopy (EVCM). Changes in skin architecture were visualized using both EVCM and hematoxylin and eosin‐stained cryosections. Results The defined immediate endpoint was a clinically visible papule formation on the skin. The pressure threshold to consistently induce a papule was 4 bar, achieving delivery of AO to the deep dermis (2319 µm axial and 5944 µm lateral distribution). Increasing the pressure level to 6 bar did not lead to significant differences in axial and lateral dispersion (P = 0.842, P = 0.905; respectively). A distinctively hemispherical distribution pattern was identified. Disruption of skin architecture occurred independently of pressure level, and consisted of subepidermal clefts, dermal vacuoles, and fragmented collagen. Conclusions This is the first study to relate a reproducible clinical endpoint to EPI‐assisted immediate drug delivery using EVCM. An EPI‐induced skin papule indicates dermal drug delivery throughout all layers of the dermis, independent of pressure level settings. Lasers Surg. Med. © 2020 The Authors. Lasers in Surgery and Medicine published by Wiley Periodicals LLC
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Affiliation(s)
- Liora Bik
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Bispebjerg Bakke 23, Copenhagen, 2400, Denmark.,Department of Dermatology, Erasmus MC University Medical Center Rotterdam, Doctor Molewaterplein 40, Rotterdam, 3015 GD, The Netherlands
| | - Martijn B A van Doorn
- Department of Dermatology, Erasmus MC University Medical Center Rotterdam, Doctor Molewaterplein 40, Rotterdam, 3015 GD, The Netherlands
| | - Edyta Biskup
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Bispebjerg Bakke 23, Copenhagen, 2400, Denmark
| | - Vinzent K Ortner
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Bispebjerg Bakke 23, Copenhagen, 2400, Denmark
| | - Merete Haedersdal
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Bispebjerg Bakke 23, Copenhagen, 2400, Denmark
| | - Uffe H Olesen
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Bispebjerg Bakke 23, Copenhagen, 2400, Denmark
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15
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Leroux R, Ringenbach C, Marchand T, Peschard O, Mondon P, Criton P. A new matrikine-derived peptide up-regulates longevity genes for improving extracellular matrix architecture and connections of dermal cell with its matrix. Int J Cosmet Sci 2019; 42:53-59. [PMID: 31596957 DOI: 10.1111/ics.12584] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 09/30/2019] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Skin extracellular matrix (ECM) is a dense and well-organized structure produced by fibroblasts. This ECM transduces environmental mechano-signals to cell nucleus through the integrin-actin complex, thus triggering ECM protein syntheses. The aim of this study was to discover a novel peptide, structurally related to dermal matrikines, that promotes syntheses of ECM components. METHODS AND RESULTS Screening tests with 120 peptides were carried out by using normal dermal human fibroblasts (HF). As a result, one candidate of interest was isolated, the N-Prolyl Palmitoyl Tripeptide-56 Acetate (PP56), which increases collagen and fibronectin productions at gene and/or protein levels. Using liquid chromatography-tandem mass spectrometry (LC-MS/MS), a recent and innovative analytical technology, in addition to more traditional techniques, it was showed that two metabolic pathways were significantly modulated: one for collagen production and one for actin. Moreover, this peptide up-regulated the transcription of Forkhead Box O (FOXO) and sestrin messenger RNAs (mRNA), leading to production of proteins involved into longevity and more recently in collagen production. RESULTS Results indicated that this peptide is a potential candidate to improve ECM density and organization in a new way.
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Affiliation(s)
- R Leroux
- SEDERMA, 29 rue du Chemin Vert, 78612, Le Perray-en-Yvelines cedex, France
| | - C Ringenbach
- SEDERMA, 29 rue du Chemin Vert, 78612, Le Perray-en-Yvelines cedex, France
| | - T Marchand
- SEDERMA, 29 rue du Chemin Vert, 78612, Le Perray-en-Yvelines cedex, France
| | - O Peschard
- SEDERMA, 29 rue du Chemin Vert, 78612, Le Perray-en-Yvelines cedex, France
| | - P Mondon
- SEDERMA, 29 rue du Chemin Vert, 78612, Le Perray-en-Yvelines cedex, France
| | - P Criton
- SEDERMA, 29 rue du Chemin Vert, 78612, Le Perray-en-Yvelines cedex, France
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16
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Dracohodin Perochlorate Stimulates Fibroblast Proliferation via EGFR Activation and Downstream ERK/CREB and PI3K/Akt/mTOR Pathways In Vitro. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:6027186. [PMID: 31534465 PMCID: PMC6732626 DOI: 10.1155/2019/6027186] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 08/04/2019] [Indexed: 11/18/2022]
Abstract
In recent years, an increasing number of natural plant extracts have been determined to be potential drugs for various illnesses. In this study, we investigated the effects of dracorhodin perchlorate (DP) on fibroblast proliferation, which is crucial for wound healing. Cell proliferation assays were performed by different concentrations of DP, and the cell viability was detected by CCK-8 kits. After DP treatment for 24 h, the cell cycle was checked by flow cytometer. EGFR and downstream signaling pathways ERK1/2 and PI3K were examined with DP treatment by western blot. We further determined the effects of the related inhibitors on DP-induced relative protein phosphorylation and cell proliferation. The results showed that 3 μg/mL of DP promoted cell proliferation most significantly at treatment lengths of 24 h, and the percentage of cells in the S + G2 phase increased compared to those of the control group. In western blot detection, we found that DP significantly upregulated EGFR phosphorylation and activated the downstream ERK/CREB and PI3K/Akt/mTOR signaling pathway. Moreover, the results also showed that AG1478 abolished DP-induced relative protein activation and cell proliferation. When U0126 or LY294002 pretreated cells alone, DP-induced p-ERK or p-PI3K downstream proteins and cell proliferation were suppressed compared to those of the control group, but EGFR was not affected. In addition, ICG001 and BEZ235 collectively eliminated DP-induced fibroblast proliferation. Our findings suggest that DP-promoted fibroblast proliferation is stimulated by p-EGFR-induced activation of the ERK1/2-CREB and PI3K/Akt/mTOR pathways. Our present study explored the mechanism of DP-promoted fibroblast proliferation and provided a new basis for wound healing.
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17
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Prospective Evaluation of Atrophic Acne Scars on the Face With Needle-Free High-Pressure Pneumatic Injection: Quantitative Volumetric Scar Improvement. Dermatol Surg 2019; 45:829-835. [DOI: 10.1097/dss.0000000000001708] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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18
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Thankam FG, Palanikumar G, Fitzgibbons RJ, Agrawal DK. Molecular Mechanisms and Potential Therapeutic Targets in Incisional Hernia. J Surg Res 2018; 236:134-143. [PMID: 30694748 DOI: 10.1016/j.jss.2018.11.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/27/2018] [Accepted: 11/20/2018] [Indexed: 12/21/2022]
Abstract
The pathophysiology underlying the formation, progression, and surgical healing of incisional hernia (IH) that develops as a major complication associated with abdominal laparotomy is poorly understood. The proposed mechanisms include the switch of collagen phenotype and the proliferation of abnormal fibroblasts after surgery. The focus of this article was to critically review the cellular, biochemical, and potential molecular events associated with the development of IH. The disturbance in collagen homeostasis with alterations in the expression of collagen subtypes, including type 1, type 3, type 4, and type 5, and impairment in the transdifferentiation of fibroblasts to myofibroblasts are discussed. The phenotype switch of wound-repair fibroblasts results in mechanically compromised extracellular matrix that triggers the proliferation of abnormal fibroblasts. High-mobility group box 1 could be involved in wound progression, whereas signaling events mediated by tumor necrosis factor β1, connective tissue growth factor, lysyl oxidase, and hypoxia-inducible factor 1 play significant role in the wound healing response. Thus, the ratio of tumor necrosis factorβ1: high-mobility group box 1 could be a critical determinant of the underlying pathology. Potential target sites for therapeutic intervention in the management of IH are recognized.
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Affiliation(s)
- Finosh G Thankam
- Departments of Clinical and Translational Science and Surgery, Creighton University School of Medicine, Omaha, Nebraska
| | - Gunasekar Palanikumar
- Departments of Clinical and Translational Science and Surgery, Creighton University School of Medicine, Omaha, Nebraska
| | - Robert J Fitzgibbons
- Departments of Clinical and Translational Science and Surgery, Creighton University School of Medicine, Omaha, Nebraska
| | - Devendra K Agrawal
- Departments of Clinical and Translational Science and Surgery, Creighton University School of Medicine, Omaha, Nebraska.
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Zhou ZQ, Chen Y, Chai M, Tao R, Lei YH, Jia YQ, Shu J, Ren J, Li G, Wei WX, Han YD, Han Y. Adipose extracellular matrix promotes skin wound healing by inducing the differentiation of adipose‑derived stem cells into fibroblasts. Int J Mol Med 2018; 43:890-900. [PMID: 30535488 PMCID: PMC6317660 DOI: 10.3892/ijmm.2018.4006] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 11/20/2018] [Indexed: 12/25/2022] Open
Abstract
Fibroblasts are the major effector cells of skin wound healing. Adipose-derived stem cells can differentiate into fibroblasts under certain conditions. In the present study, it was hypothesized that adipose-derived stem cells (ADSCs) could be induced by the adipose extracellular matrix (ECM) to differentiate into fibroblasts in order to promote skin wound healing. First, flow cytometry was used to detect the ratio of fibroblasts and relative expression of the fibroblast markers cytokeratin 19 (CK19) and vimentin in ADSCs. Then, the effect of the adipose ECM during the differentiation of ADSCs into fibroblasts was investigated by detecting the total amount of collagen fibers and degree of fibrosis, and the proliferation and cell cycle of differentiated fibroblasts, using the MTT assay and flow cytometry analysis respectively. Finally, a mouse skin wound model was established and treated with PBS, ADSC suspension or ECM + ADSCs to compare wound healing rate and expression of collagen I and collagen III by immunohistochemistry. Following induction of ADSCs with the adipose ECM, more fibroblasts were found, expression of CK19 and vimentin increased, and a greater degree of fibrosis occurred, which revealed the positive effect of the adipose ECM on the differentiation of ADSCs into fibroblasts. In addition, the induced fibroblasts had enhanced proliferation activity, with more cells in the S phase and fewer in the G2/M phase. The in vivo experiment indicated that the ECM produced by the ADSCs had a faster wound healing rate and increased expression of collagen I and collagen III compared with mice injected with PBS or ADSCs alone, which verified that ADSCs induced by the adipose ECM had a positive effect on skin wound healing. The present study demonstrated that the adipose ECM in combination with ADSCs may be a novel therapeutic target for the repair of skin injury, due to the ability of the adipose ECM to induce the differentiation of ADSCs into fibroblasts and to facilitate the wound healing process.
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Affiliation(s)
- Zhi-Qiang Zhou
- Department of Plastic and Reconstructive Surgery, General Hospital of Chinese PLA, Beijing 100853, P.R. China
| | - Yi Chen
- Institute of Bioengineering, Academy of Military Medical Research, Academy of Military Science of Chinese PLA, Beijing 100071, P.R. China
| | - Mi Chai
- Department of Plastic and Reconstructive Surgery, General Hospital of Chinese PLA, Beijing 100853, P.R. China
| | - Ran Tao
- Department of Plastic and Reconstructive Surgery, General Hospital of Chinese PLA, Beijing 100853, P.R. China
| | - Yong-Hong Lei
- Department of Plastic and Reconstructive Surgery, General Hospital of Chinese PLA, Beijing 100853, P.R. China
| | - Yi-Qing Jia
- Department of Plastic and Reconstructive Surgery, General Hospital of Chinese PLA, Beijing 100853, P.R. China
| | - Jun Shu
- Department of Plastic and Reconstructive Surgery, General Hospital of Chinese PLA, Beijing 100853, P.R. China
| | - Jing Ren
- Department of Plastic and Reconstructive Surgery, General Hospital of Chinese PLA, Beijing 100853, P.R. China
| | - Guo Li
- Department of Plastic and Reconstructive Surgery, General Hospital of Chinese PLA, Beijing 100853, P.R. China
| | - Wen-Xin Wei
- Department of Plastic and Reconstructive Surgery, General Hospital of Chinese PLA, Beijing 100853, P.R. China
| | - Yu-Di Han
- Department of Plastic and Reconstructive Surgery, General Hospital of Chinese PLA, Beijing 100853, P.R. China
| | - Yan Han
- Department of Plastic and Reconstructive Surgery, General Hospital of Chinese PLA, Beijing 100853, P.R. China
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20
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Cho SB, Zheng Z, Yoo KH, Kim HJ, Kim H. Split-face comparison study of transcutaneous pneumatic injection therapy with isotonic and hypertonic glucose solutions. J Cosmet Dermatol 2018; 18:487-494. [PMID: 30146720 DOI: 10.1111/jocd.12766] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 02/27/2018] [Accepted: 07/17/2018] [Indexed: 12/01/2022]
Abstract
BACKGROUND Transcutaneous pneumatic injection (TPI) is a minimally invasive, needle-free modality that can be used to forcefully deliver solution into soft tissues of the face and scalp. OBJECTIVE To evaluate the effects of TPI of 5% isotonic and 20% hypertonic glucose solutions in in vivo human skin for face lifting. METHODS AND MATERIALS A prospective, split-face, evaluator-blinded comparison study was performed on 10 Korean participants who were treated with three sessions of TPI using 5% isotonic and 20% hypertonic glucose solutions. RESULTS The following assessment parameters were improved after TPI therapy using 5% isotonic glucose solution in descending order of mean global aesthetic improvement scale (GAIS) score: perioral expression wrinkles, zygomatic wrinkles or mid-cheek furrows, eyebrow ptosis, jowl sagging, marionette line, horizontal forehead lines, nasolabial folds, and blepharochalasis. Meanwhile, TPI therapy using 20% hypertonic glucose solution improved the following assessment parameters: zygomatic wrinkles or mid-cheek furrows, perioral expression wrinkles, eyebrow ptosis, blepharochalasis, marionette line, jowl sagging, nasolabial folds, and horizontal forehead lines. Linear mixed models revealed a significant interaction between treatment groups and time. CONCLUSION Our data demonstrated that TPI treatment with 20% hypertonic glucose solution elicited earlier and more pronounced therapeutic responses, compared to 5% isotonic glucose solution.
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Affiliation(s)
- Sung Bin Cho
- Department of Dermatology and Cutaneous Biology Research Center, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea.,Kangskin Sillim Dermatology Clinic, Seoul, Korea
| | - Zhenlong Zheng
- Department of Dermatology and Cutaneous Biology Research Center, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea.,Department of Dermatology, Yanbian University Hospital, Yanji, China
| | - Kwang Ho Yoo
- Department of Dermatology and Cutaneous Biology Research Center, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea
| | | | - Heesu Kim
- Department of Dermatology and Cutaneous Biology Research Center, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea
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21
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Sun G, Shen YI, Harmon JW. Engineering Pro-Regenerative Hydrogels for Scarless Wound Healing. Adv Healthc Mater 2018; 7:e1800016. [PMID: 29663707 DOI: 10.1002/adhm.201800016] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 02/17/2018] [Indexed: 12/21/2022]
Abstract
Skin and skin appendages protect the body from harmful environment and prevent internal organs from dehydration. Superficial epidermal wounds usually heal without scarring, however, deep dermal wound healing commonly ends up with nonfunctioning scar formation with substantial loss of skin appendage. Wound healing is one of the most complex dynamic biological processes, during which a cascade of biomolecules combine with stem cell influx and matrix synthesis and synergistically contribute to wound healing at all levels. Although many approaches have been investigated to restore complete skin, the clinically effective therapy is still unavailable and the regeneration of perfect skin still remains a significant challenge. The complete mechanism behind scarless skin regeneration still requires further investigation. Fortunately, recent advancement in regenerative medicine empowers us more than ever to restore tissue in a regenerative manner. Many studies have elucidated and reviewed the contribution of stem cells and growth factors to scarless wound healing. This article focuses on recent advances in scarless wound healing, especially strategies to engineer pro-regenerative scaffolds to restore damaged skin in a regenerative manner.
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Affiliation(s)
- Guoming Sun
- Sunogel Biotechnologies Inc.; 9 W Ridgely Road Ste 270 Lutherville Timonium MD 21093 USA
| | - Yu-I Shen
- Sunogel Biotechnologies Inc.; 9 W Ridgely Road Ste 270 Lutherville Timonium MD 21093 USA
| | - John W. Harmon
- Department of Surgery and the Hendrix Burn Lab; Johns Hopkins University School of Medicine; Baltimore MD 21224 USA
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22
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Jiang X, Liu L, Qiao L, Zhang B, Wang X, Han Y, Yu W. Dracorhodin perchlorate regulates fibroblast proliferation to promote rat's wound healing. J Pharmacol Sci 2018; 136:66-72. [PMID: 29428295 DOI: 10.1016/j.jphs.2017.12.003] [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] [Received: 06/13/2017] [Revised: 11/30/2017] [Accepted: 12/05/2017] [Indexed: 12/12/2022] Open
Abstract
In recent years, plant-derived extracts are increasing interest from researchers worldwide due to good efficacy and lower side effects. Among the different plant extracts, Dracorhodin perchlorate (DP) is originated from Dragon's blood which has long been used as a natural medicine with various pharmacological activities. In the present study, we have explored the potential regulation of DP on fibroblast proliferation which promotes wound healing both in vitro and in vivo. DP at treatment of 12-24 h significantly induced fibroblast proliferation which is associated with increasing level of phosphorylated-extracellular signal-regulated kinase (ERK). Moreover, if ERK is halted with siRNA, DP cannot induce fibroblast proliferation. In vivo, DP ointment treatment at low- (2.5 μg/mL), medium- (5 μg/mL) and high-(10 μg/mL) doses, rat wounds healed more rapidly compared with the control group. After DP treatment for 7 days, Serpin family H member 1 (SERPINH1) staining confirmed enhanced fibroblast proliferation in the wound tissue. Finally, phosphorylated-ERK in the wound tissue remarkably increased with DP ointment treatment. Therefore, DP may be developed into a potential lead compounds for the treatment of wounds in clinical trials in the near future.
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Affiliation(s)
- Xiaowen Jiang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Lin Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Lu Qiao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Binqing Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Xuewei Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Yuwen Han
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Wenhui Yu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, PR China.
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23
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Kwon HH, Choi SC, Park KH, Jung JY. A novel combination regimen with intense focused ultrasound and pressure- and dose-controlled transcutaneous pneumatic injection of hypertonic glucose solution for lifting and tightening of the aging face. J Cosmet Dermatol 2017; 17:373-379. [PMID: 29024489 DOI: 10.1111/jocd.12419] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2017] [Indexed: 12/01/2022]
Abstract
BACKGROUND Intense focused ultrasound (IFUS) has demonstrated moderate efficacy for facial laxity of the aging face. Pressure- and dose-controlled transcutaneous pneumatic injections of hypertonic glucose solution (TPIG) are a minimally invasive way to deliver solution into the skin for therapeutic purposes. Recently, its application around temporal areas is known to exert early-onset lifting effects with facial contour rejuvenation. AIMS We sought to evaluate the safety and efficacy of this novel combination regimen with IFUS and TPIG for lifting and tightening of aging face. PATIENTS AND METHODS Twenty-two Korean subjects with mild-to-moderate facial skin laxity were evaluated after receiving a sequential single session of IFUS and TPIG treatments. Dermatologists' objective assessments for general appearance, and mid- and low faces based on photographic images were performed at 1- and 12-week post-treatment follow-ups. Patients' subjective assessments were also conducted. Skin biopsies were taken at baseline and the last visit. RESULTS Among 22 subjects, twenty (91%) demonstrated improvement after 12-week follow-up. We also observed similarly improved state just after 1 week of treatments (82%: 18/22). Specifically, improvement of the mid-face was evident from the first week, while the progress of the low face improvement was observed at the twelve week. Subjective assessments paralleled these findings. No seriously adverse effect was observed during procedures. Histologic evaluation showed greater dermal collagen fibers throughout the dermis after treatments. CONCLUSION Combination treatment with IFUS and TPIG has beneficial effects for skin lifting and tightening with early-onset time.
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Affiliation(s)
| | | | - Kyung-Hoon Park
- Department of Dermatology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
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Mechanism of Mechanical Trauma-Induced Extracellular Matrix Remodeling of Fibroblasts in Association with Nrf2/ARE Signaling Suppression Mediating TGF- β1/Smad3 Signaling Inhibition. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:8524353. [PMID: 29109834 PMCID: PMC5646330 DOI: 10.1155/2017/8524353] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 07/29/2017] [Accepted: 08/09/2017] [Indexed: 11/30/2022]
Abstract
Stress urinary incontinence (SUI) is a common hygienic problem affecting the quality of women's life worldwide. In this research, we revealed the involvement and regulation of extracellular matrix (ECM) remodeling, oxidative damage, and TGF-β1 signaling in the pathological mechanisms of mechanical trauma-induced SUI. We found that excessive mechanical strain significantly increased apoptosis rate, decreased cell viability and ECM production, and broke the balance of MMPs/TIMPs compared with the nonstrain control (NC) group. The expression levels of TGFβ1, p-Smad3, Nrf2, GPx1, and CAT were downregulated, the production of ROS, 8-OHdG, 4-HNE, and MDA was increased, and the nuclear translocation of Smad2/3 was suppressed after 5333 μstrain's treatment. Both mTGF-β1 pretreatment and Nrf2 overexpression could reverse mechanical injury-induced TGFβ1/Smad3 signaling inhibition and ECM remodeling, whereas mTGF-β1 had no effect on Nrf2 expression. Nrf2 overexpression significantly alleviated mechanical injury-induced ROS accumulation and oxidative damage; in contrast, Nrf2 silencing exhibited opposite effects. Besides, vaginal distention- (VD-) induced in vivo SUI model was used to confirm the in vitro results; Nrf2 knockout aggravates mechanical trauma-induced LPP reduction, ECM remodeling, oxidative damage, and TGF-β1/Smad3 suppression in mice. Therefore, we deduce that mechanical injury-induced ECM remodeling might be associated with Nrf2/ARE signaling suppression mediating TGF-β1/Smad3 signaling inhibition. This might reflect a new molecular target for SUI researches.
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25
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Cho SB, Kwon TR, Yoo KH, Oh CT, Choi EJ, Kim BJ. Transcutaneous pneumatic injection of glucose solution: a morphometric evaluation ofin vivomicropig skin and tissue-mimicking phantom. Skin Res Technol 2016; 23:88-96. [DOI: 10.1111/srt.12306] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2016] [Indexed: 12/29/2022]
Affiliation(s)
- S. B. Cho
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
- Department of Dermatology; International St. Mary's Hospital; Catholic Kwandong University; College of Medicine; Incheon Korea
- Kangskin Sillim Dermatology Clinic; Seoul Korea
| | - T. R. Kwon
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
- Department of Medicine; Graduate School; Chung-Ang University; Seoul Korea
| | - K. H. Yoo
- Department of Dermatology; International St. Mary's Hospital; Catholic Kwandong University; College of Medicine; Incheon Korea
| | - C. T. Oh
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
- Department of Medicine; Graduate School; Chung-Ang University; Seoul Korea
| | - E. J. Choi
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
| | - B. J. Kim
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
- Department of Medicine; Graduate School; Chung-Ang University; Seoul Korea
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26
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Zhang L, Han Y, Tan G. Hydroxyaptite nanorods patterned ZrO2 bilayer coating on zirconium for the application of percutaneous implants. Colloids Surf B Biointerfaces 2015; 127:8-14. [DOI: 10.1016/j.colsurfb.2015.01.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 12/09/2014] [Accepted: 01/11/2015] [Indexed: 11/26/2022]
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