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Tran NT, Park IS, Truong MD, Park DY, Park SH, Min BH. Conditioned media derived from human fetal progenitor cells improves skin regeneration in burn wound healing. Cell Tissue Res 2022; 389:289-308. [PMID: 35624315 DOI: 10.1007/s00441-022-03638-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 05/11/2022] [Indexed: 01/06/2023]
Abstract
Stem cells are known to have excellent regenerative ability, which is primarily facilitated by indirect paracrine factors, rather than via direct cell replacement. The regenerative process is mediated by the release of extracellular matrix molecules, cytokines, and growth factors, which are also present in the media during cultivation. Herein, we aimed to demonstrate the functionality of key factors and mechanisms in skin regeneration through the analysis of conditioned media derived from fetal stem cells. A series of processes, including 3D pellet cultures, filtration and lyophilization is developed to fabricate human fetal cartilage-derived progenitor cells-conditioned media (hFCPCs-CM) and its useful properties are compared with those of human bone marrow-derived MSCs-conditioned media (hBMSCs-CM) in terms of biochemical characterization, and in vitro studies of fibroblast behavior, macrophage polarization, and burn wound healing. The hFCPCs-CM show to be devoid of cellular components but to contain large amounts of total protein, collagen, glycosaminoglycans, and growth factors, including IGFBP-2, IGFBP-6, HGF, VEGF, TGF β3, and M-CSF, and contain a specific protein, collagen alpha-1(XIV) compare with hBMSCs-CM. The therapeutic potential of hFCPCs-CM observes to be better than that of hBMSCs-CM in the viability, proliferation, and migration of fibroblasts, and M2 macrophage polarization in vitro, and efficient acceleration of wound healing and minimization of scar formation in third-degree burn wounds in a rat model. The current study shows the potential therapeutic effect of hFCPCs and provides a rationale for using the secretome released from fetal progenitor cells to promote the regeneration of skin tissues, both quantitatively and qualitatively. The ready-to-use product of human fetal cartilage-derived progenitor cells-conditioned media (hFCPCs-CM) are fabricated via a series of techniques, including a 3D culture of hFCPCs, filtration using a 3.5 kDa cutoff dialysis membrane, and lyophilization of the CM. hFCPCs-CM contains many ECM molecules and biomolecules that improves wound healing through efficient acceleration of M2 macrophage polarization and reduction of scar formation.
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Affiliation(s)
- Ngoc-Trinh Tran
- Department of Molecular Science and Technology, Ajou University, Suwon, Korea
- Cell Therapy Center, Ajou Medical Center, Suwon, 16499, Korea
| | - In-Su Park
- Cell Therapy Center, Ajou Medical Center, Suwon, 16499, Korea
| | | | - Do-Young Park
- Department of Orthopedic Surgery, School of Medicine, Ajou University, Suwon, Korea
| | - Sang-Hyug Park
- Advanced Translational Engineering and Medical Science, Seoul, Korea.
- Department of Biomecial Engineering, Pukyong National University, Busan, 48513, Korea.
| | - Byoung-Hyun Min
- Department of Molecular Science and Technology, Ajou University, Suwon, Korea.
- Cell Therapy Center, Ajou Medical Center, Suwon, 16499, Korea.
- Department of Orthopedic Surgery, School of Medicine, Ajou University, Suwon, Korea.
- Advanced Translational Engineering and Medical Science, Seoul, Korea.
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2
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Yao J, Vangsness KL, Khim P, Raghuram AC, Park SY, Yu R, Wang J, Jiao W, Wong AK. Urinary Bladder Matrix Improves Irradiated Wound Healing in a Murine Model. Ann Plast Surg 2022; 88:566-573. [PMID: 35443270 DOI: 10.1097/sap.0000000000003202] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABSTRACT Radiation skin damage is associated with chronic wounds and poor healing. Existing localized treatment modalities have limited benefit. Therefore, there has been increased interest in biologically based solutions. In this study, we aimed to determine the effect of topical urinary bladder matrix (UBM) on chronic irradiated skin wounds using an established murine model. Our findings demonstrated that topical urinary bladder matrix significantly accelerated the healing of irradiated wounds on day 7 (P = 0.0216), day 14 (P = 0.0140), and day 21 (P = 0.0393). Histologically, urinary bladder matrix treatment was associated with higher-quality reorganization and reepithelialization of wounds, an increased density of myofibroblasts (P = 0.0004), and increased collagen deposition (P < 0.0001). In addition, quantitative real-time polymerase chain reaction data demonstrated decreased expression of profibrotic mediators (P = 0.0049). We conclude that urinary bladder matrix may be a useful, noninvasive, adjunctive therapy for the treatment of chronic irradiated skin wounds.
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Affiliation(s)
- Jingxin Yao
- From the Division of Plastic and Reconstructive Surgery, Keck School of Medicine of University of Southern California, University of Southern California, Los Angeles
| | - Kella L Vangsness
- From the Division of Plastic and Reconstructive Surgery, Keck School of Medicine of University of Southern California, University of Southern California, Los Angeles
| | - Phillip Khim
- From the Division of Plastic and Reconstructive Surgery, Keck School of Medicine of University of Southern California, University of Southern California, Los Angeles
| | - Anjali C Raghuram
- From the Division of Plastic and Reconstructive Surgery, Keck School of Medicine of University of Southern California, University of Southern California, Los Angeles
| | - Sun Young Park
- From the Division of Plastic and Reconstructive Surgery, Keck School of Medicine of University of Southern California, University of Southern California, Los Angeles
| | - Roy Yu
- From the Division of Plastic and Reconstructive Surgery, Keck School of Medicine of University of Southern California, University of Southern California, Los Angeles
| | | | - Wan Jiao
- From the Division of Plastic and Reconstructive Surgery, Keck School of Medicine of University of Southern California, University of Southern California, Los Angeles
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3
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Ahn G, Kim YH, Ahn JY. Multifaceted effects of milk-exosomes (Mi-Exo) as a modulator of scar-free wound healing. NANOSCALE ADVANCES 2021; 3:528-537. [PMID: 36131751 PMCID: PMC9419160 DOI: 10.1039/d0na00665c] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 11/26/2020] [Indexed: 05/09/2023]
Abstract
Scar-free treatment is complex involving many cells in the human body but a very elaborate reaction. This process demands regulation of various growth factors on behalf of TGFβ3 around the damaged tissue, and it is also important to protect cells from inflammatory reactions and oxidative stress to avoid abnormalities. Here, we focused on bovine derived milk exosomes (Mi-Exo) and their scar-free healing potential. The physiological properties (size and shape), biological markers (TSG101 and Bta-miR2478) and stability on storage of Mi-Exo were analyzed. Mi-Exo exhibited significant NP (number of Mi-Exo particles)-dependent scavenging activity in ABTS assay. In addition, Mi-Exo suppressed the expression of pro-inflammatory mediators, IL-6 and TNFα, and pro-inflammatory chemokines, COX-2 and iNOS. This study showed that cell migration was significantly inhibited in a Mi-Exo NP-dependent manner. We also evaluated the expression of TGFβ1 and TGFβ3 on the basis of mRNA and protein levels. Furthermore, the role of functional behavior of Mi-Exo in TGFβ1 maturation was explored. This is the first study to demonstrate that Mi-Exo may target the TGFβ signaling pathway, which plays important roles in scar-free wound healing.
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Affiliation(s)
- Gna Ahn
- School of Biological Sciences, Chungbuk National University 1 Chungdae-Ro, Seowon-Gu Cheongju 28644 South Korea
| | - Yang-Hoon Kim
- School of Biological Sciences, Chungbuk National University 1 Chungdae-Ro, Seowon-Gu Cheongju 28644 South Korea
| | - Ji-Young Ahn
- School of Biological Sciences, Chungbuk National University 1 Chungdae-Ro, Seowon-Gu Cheongju 28644 South Korea
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Weng L, Funderburgh JL, Khandaker I, Geary ML, Yang T, Basu R, Funderburgh ML, Du Y, Yam GHF. The anti-scarring effect of corneal stromal stem cell therapy is mediated by transforming growth factor β3. EYE AND VISION 2020; 7:52. [PMID: 33292650 PMCID: PMC7607765 DOI: 10.1186/s40662-020-00217-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 10/12/2020] [Indexed: 02/06/2023]
Abstract
Background Corneal stromal stem cells (CSSC) reduce corneal inflammation, prevent fibrotic scarring, and regenerate transparent stromal tissue in injured corneas. These effects rely on factors produced by CSSC to block the fibrotic gene expression. This study investigated the mechanism of the scar-free regeneration effect. Methods Primary human CSSC (hCSSC) from donor corneal rims were cultivated to passage 3 and co-cultured with mouse macrophage RAW264.7 cells induced to M1 pro-inflammatory phenotype by treatment with interferon-γ and lipopolysaccharides, or to M2 anti-inflammatory phenotype by interleukin-4, in a Transwell system. The time-course expression of human transforming growth factor β3 (hTGFβ3) and hTGFβ1 were examined by immunofluorescence and qPCR. TGFβ3 knockdown for > 70% in hCSSC [hCSSC-TGFβ3(si)] was achieved by small interfering RNA transfection. Naïve CSSC and hCSSC-TGFβ3(si) were transplanted in a fibrin gel to mouse corneas, respectively, after wounding by stromal ablation. Corneal clarity and the expression of mouse inflammatory and fibrosis genes were examined. Results hTGFβ3 was upregulated by hCSSC when co-cultured with RAW cells under M1 condition. Transplantation of hCSSC to wounded mouse corneas showed significant upregulation of hTGFβ3 at days 1 and 3 post-injury, along with the reduced expression of mouse inflammatory genes (CD80, C-X-C motif chemokine ligand 5, lipocalin 2, plasminogen activator urokinase receptor, pro-platelet basic protein, and secreted phosphoprotein 1). By day 14, hCSSC treatment significantly reduced the expression of fibrotic and scar tissue genes (fibronectin, hyaluronan synthase 2, Secreted protein acidic and cysteine rich, tenascin C, collagen 3a1 and α-smooth muscle actin), and the injured corneas remained clear. However, hCSSC-TGFβ3(si) lost these anti-inflammatory and anti-scarring functions, and the wounded corneas showed intense scarring. Conclusion This study has demonstrated that the corneal regenerative effect of hCSSC is mediated by TGFβ3, inducing a scar-free tissue response.
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Affiliation(s)
- Lin Weng
- Department of Ophthalmology, University of Pittsburgh School of medicine, 203 Lothrop Street, Pittsburgh, PA, 15213, USA.,Shanghai Lanhe Optometry and Ophthalmology Clinic, Shanghai, 200032, People's Republic of China
| | - James L Funderburgh
- Department of Ophthalmology, University of Pittsburgh School of medicine, 203 Lothrop Street, Pittsburgh, PA, 15213, USA
| | - Irona Khandaker
- Department of Ophthalmology, University of Pittsburgh School of medicine, 203 Lothrop Street, Pittsburgh, PA, 15213, USA
| | - Moira L Geary
- Department of Ophthalmology, University of Pittsburgh School of medicine, 203 Lothrop Street, Pittsburgh, PA, 15213, USA
| | - Tianbing Yang
- Department of Ophthalmology, University of Pittsburgh School of medicine, 203 Lothrop Street, Pittsburgh, PA, 15213, USA
| | - Rohan Basu
- Department of Ophthalmology, University of Pittsburgh School of medicine, 203 Lothrop Street, Pittsburgh, PA, 15213, USA
| | - Martha L Funderburgh
- Department of Ophthalmology, University of Pittsburgh School of medicine, 203 Lothrop Street, Pittsburgh, PA, 15213, USA
| | - Yiqin Du
- Department of Ophthalmology, University of Pittsburgh School of medicine, 203 Lothrop Street, Pittsburgh, PA, 15213, USA
| | - Gary Hin-Fai Yam
- Department of Ophthalmology, University of Pittsburgh School of medicine, 203 Lothrop Street, Pittsburgh, PA, 15213, USA.
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Paterson YZ, Cribbs A, Espenel M, Smith EJ, Henson FMD, Guest DJ. Genome-wide transcriptome analysis reveals equine embryonic stem cell-derived tenocytes resemble fetal, not adult tenocytes. Stem Cell Res Ther 2020; 11:184. [PMID: 32430075 PMCID: PMC7238619 DOI: 10.1186/s13287-020-01692-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/21/2020] [Accepted: 04/28/2020] [Indexed: 01/10/2023] Open
Abstract
Background Tendon injuries occur frequently in human and equine athletes. Treatment options are limited, and the prognosis is often poor with functionally deficient scar tissue resulting. Fetal tendon injuries in contrast are capable of healing without forming scar tissue. Embryonic stem cells (ESCs) may provide a potential cellular therapeutic to improve adult tendon regeneration; however, whether they can mimic the properties of fetal tenocytes is unknown. To this end, understanding the unique expression profile of normal adult and fetal tenocytes is crucial to allow validation of ESC-derived tenocytes as a cellular therapeutic. Methods Equine adult, fetal and ESC-derived tenocytes were cultured in a three-dimensional environment, with histological, morphological and transcriptomic differences compared. Additionally, the effects on gene expression of culturing adult and fetal tenocytes in either conventional two-dimensional monolayer culture or three-dimensional culture were compared using RNA sequencing. Results No qualitative differences in three-dimensional tendon constructs generated from adult, fetal and ESCs were found using histological and morphological analysis. However, genome-wide transcriptomic analysis using RNA sequencing revealed that ESC-derived tenocytes’ transcriptomic profile more closely resembled fetal tenocytes as opposed to adult tenocytes. Furthermore, this study adds to the growing evidence that monolayer cultured cells’ gene expression profiles converge, with adult and fetal tenocytes having only 10 significantly different genes when cultured in this manner. In contrast, when adult and fetal tenocytes were cultured in 3D, large distinctions in gene expression between these two developmental stages were found, with 542 genes being differentially expressed. Conclusion The information provided in this study makes a significant contribution to the investigation into the differences between adult reparative and fetal regenerative cells and supports the concept of using ESC-derived tenocytes as a cellular therapy. Comparing two- and three-dimensional culture also indicates three-dimensional culture as being a more physiologically relevant culture system for determining transcriptomic difference between the same cell types from different developmental stages.
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Affiliation(s)
- Y Z Paterson
- Department of Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge, CB3 0ES, UK. .,Centre for Preventive Medicine, Animal Health Trust, Lanwades Park, Kentford, Newmarket, Suffolk, CB8 7UU, UK.
| | - A Cribbs
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, OX3 7LD, UK
| | - M Espenel
- Centre for Preventive Medicine, Animal Health Trust, Lanwades Park, Kentford, Newmarket, Suffolk, CB8 7UU, UK
| | - E J Smith
- Centre for Preventive Medicine, Animal Health Trust, Lanwades Park, Kentford, Newmarket, Suffolk, CB8 7UU, UK
| | - F M D Henson
- Department of Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge, CB3 0ES, UK.,Centre for Preventive Medicine, Animal Health Trust, Lanwades Park, Kentford, Newmarket, Suffolk, CB8 7UU, UK
| | - D J Guest
- Centre for Preventive Medicine, Animal Health Trust, Lanwades Park, Kentford, Newmarket, Suffolk, CB8 7UU, UK
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Pang X, Dong N, Zheng Z. Small Leucine-Rich Proteoglycans in Skin Wound Healing. Front Pharmacol 2020; 10:1649. [PMID: 32063855 PMCID: PMC6997777 DOI: 10.3389/fphar.2019.01649] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 12/16/2019] [Indexed: 12/11/2022] Open
Abstract
Healing of cutaneous wounds is a complex and well-coordinated process requiring cooperation among multiple cells from different lineages and delicately orchestrated signaling transduction of a diversity of growth factors, cytokines, and extracellular matrix (ECM) at the wound site. Most skin wound healing in adults is imperfect, characterized by scar formation which results in significant functional and psychological sequelae. Thus, the reconstruction of the damaged skin to its original state is of concern to doctors and scientists. Beyond the traditional treatments such as corticosteroid injection and radiation therapy, several growth factors or cytokines-based anti-scarring products are being or have been tested in clinical trials to optimize skin wound healing. Unfortunately, all have been unsatisfactory to date. Currently, accumulating evidence suggests that the ECM not only functions as the structural component of the tissue but also actively modulates signal transduction and regulates cellular behaviors, and thus, ECM should be considered as an alternative target for wound management pharmacotherapy. Of particular interest are small leucine-rich proteoglycans (SLRPs), a group of the ECM, which exist in a wide range of connecting tissues, including the skin. This manuscript summarizes the most current knowledge of SLRPs regarding their spatial-temporal expression in the skin, as well as lessons learned from the genetically modified animal models simulating human skin pathologies. In this review, particular focus is given on the diverse roles of SLRP in skin wound healing, such as anti-inflammation, pro-angiogenesis, pro-migration, pro-contraction, and orchestrate transforming growth factor (TGF)β signal transduction, since cumulative investigations have indicated their therapeutic potential on reducing scar formation in cutaneous wounds. By conducting this review, we intend to gain insight into the potential application of SLRPs in cutaneous wound healing management which may pave the way for the development of a new generation of pharmaceuticals to benefit the patients suffering from skin wounds and their sequelae.
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Affiliation(s)
- Xiaoxiao Pang
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Stomatological Hospital of Chongqing Medical University, Chongqing, China.,Division of Growth and Development, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
| | - Nuo Dong
- Division of Growth and Development, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
| | - Zhong Zheng
- Division of Growth and Development, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
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Sai C, Yunhan J, Zhao J, Yu Z, Yun Z, Zhezhe C, Fuqin T, Yingbin X, Ruiyan M. Cyclin Dependent Kinase 1 (CDK1) Activates Cardiac Fibroblasts via Directly Phosphorylating Paxillin at Ser244. Int Heart J 2019; 60:374-383. [PMID: 30745530 DOI: 10.1536/ihj.18-073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Atrial fibrillation has caused severe burden for people worldwide. Differentiation of fibroblasts into myofibroblasts, and consequent progress in atrial structural remodeling have been considered the basis for persistent atrial fibrillation, yet little is known about the molecular mechanisms underlying the process. Here, we show that cyclin-dependent kinase 1 (CDK1) is activated in atrial fibroblasts from patients with atrial fibrillation (AFPAF) and in platelet derived growth factor BB (PDGF-BB)-treated atrial fibroblasts from patients with sinus rhythm (AFPSR). We also demonstrate that inhibition of CDK1 suppresses fibroblast differentiation and focal adhesion (FA) complex formation. The FA protein paxillin is phosphorylated directly at Ser244 by CDK1. Importantly, transfection of a paxillin construct harboring a Ser to Ala mutation causes FA complex disassembly and greatly inhibits fibroblast activation. AFPSRs applied with a lentiviral vector carrying the shRNA sequence of paxillin dramatically prevents PDGF-BB induced functional activation. Taken together, all these results suggest that phosphorylation of paxillin at Ser244 by CDK1 is a key mechanism in fibroblast differentiation and could eventually assist atrial fibrosis.
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Affiliation(s)
- Chen Sai
- Department of Cardiovascular Surgery, Xinqiao Hospital, Third Military Medical University
| | - Jiang Yunhan
- Department of Cardiovascular Surgery, Xinqiao Hospital, Third Military Medical University
| | - Jian Zhao
- Department of Cardiovascular Surgery, Xinqiao Hospital, Third Military Medical University
| | - Zhu Yu
- Department of Cardiovascular Surgery, Xinqiao Hospital, Third Military Medical University
| | - Zhu Yun
- Department of Cardiovascular Surgery, Xinqiao Hospital, Third Military Medical University
| | - Cao Zhezhe
- Department of Cardiovascular Surgery, Xinqiao Hospital, Third Military Medical University
| | - Tang Fuqin
- Department of Cardiovascular Surgery, Xinqiao Hospital, Third Military Medical University
| | - Xiao Yingbin
- Department of Cardiovascular Surgery, Xinqiao Hospital, Third Military Medical University
| | - Ma Ruiyan
- Department of Cardiovascular Surgery, Xinqiao Hospital, Third Military Medical University
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Ketomäki T, Vähätupa M, May U, Pemmari T, Ruikka E, Hietamo J, Kaipiainen P, Barker H, Parkkila S, Uusitalo-Järvinen H, Järvinen TAH. R-Ras regulates vascular permeability, but not overall healing in skin wounds. Exp Dermatol 2018; 28:202-206. [PMID: 30489650 DOI: 10.1111/exd.13851] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 11/07/2018] [Accepted: 11/20/2018] [Indexed: 12/12/2022]
Abstract
Wounds close by keratinocytes migrating from the edge of the wound and re-epithelializing the epidermis. It has been proposed that the major stimuli for wound closure are blood-derived growth factors, chemokines and cytokines. The small GTPase R-Ras, a known integrin activator, also regulates vascular permeability during angiogenesis, and blood vessels lacking R-Ras leak plasma proteins constantly. We explored whether the access to blood-derived proteins influences skin wound healing in R-Ras knockout (KO) mice. In skin wounds, R-Ras expression was mostly restricted to the vasculature in the granulation tissue. Angiogenic blood vessels in the R-Ras KO mice were significantly more permeable than in wild-type (WT) controls. Although the distances between epidermal tongues, and the panniculus carnosus muscles, were significantly longer in R-Ras KO than WT controls before the granulation tissue formation took place, there were no differences in the wound closure or re-epithelialization rates or granulation tissue formation. These findings were also corroborated in a special splint excision wound model. Our study shows that although R-Ras does not influence the skin wound healing itself, the blood vessels lacking R-Ras are leaky and thus could facilitate the access of blood-derived proteins to the wound.
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Affiliation(s)
- Tuomo Ketomäki
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Maria Vähätupa
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Ulrike May
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Toini Pemmari
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Ella Ruikka
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Jussi Hietamo
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Pirkka Kaipiainen
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Harlan Barker
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Seppo Parkkila
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Fimlab laboratories, Eye Centre & Department of Orthopedics & Traumatology, Tampere University Hospital, Tampere, Finland
| | - Hannele Uusitalo-Järvinen
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Fimlab laboratories, Eye Centre & Department of Orthopedics & Traumatology, Tampere University Hospital, Tampere, Finland
| | - Tero A H Järvinen
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Fimlab laboratories, Eye Centre & Department of Orthopedics & Traumatology, Tampere University Hospital, Tampere, Finland
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Fibromodulin reduces scar formation in adult cutaneous wounds by eliciting a fetal-like phenotype. Signal Transduct Target Ther 2017; 2. [PMID: 29201497 PMCID: PMC5661627 DOI: 10.1038/sigtrans.2017.50] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Blocking transforming growth factor (TGF)β1 signal transduction has been a central strategy for scar reduction; however, this approach appears to be minimally effective. Here, we show that fibromodulin (FMOD), a 59-kD small leucine-rich proteoglycan critical for normal collagen fibrillogenesis, significantly reduces scar formation while simultaneously increasing scar strength in both adult rodent models and porcine wounds, which simulate human cutaneous scar repair. Mechanistically, FMOD uncouples pro-migration/contraction cellular signals from pro-fibrotic signaling by selectively enhancing SMAD3-mediated signal transduction, while reducing AP-1-mediated TGFβ1 auto-induction and fibrotic extracellular matrix accumulation. Consequently, FMOD accelerates TGFβ1-responsive adult fibroblast migration, myofibroblast conversion, and function. Furthermore, our findings strongly indicate that, by delicately orchestrating TGFβ1 activities rather than indiscriminately blocking TGFβ1, FMOD elicits fetal-like cellular and molecular phenotypes in adult dermal fibroblasts in vitro and adult cutaneous wounds in vivo, which is a unique response of living system undescribed previously. Taken together, this study illuminates the signal modulating activities of FMOD beyond its structural support functions, and highlights the potential for FMOD-based therapies to be used in cutaneous wound repair.
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Mahmoudi Rad M, Mahmoudi Rad N, Mirdamadi Y. Expression of TGF-β3 in isolated fibroblasts from foreskin. Rep Biochem Mol Biol 2015; 3:76-81. [PMID: 26989741 PMCID: PMC4757045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Accepted: 12/12/2014] [Indexed: 06/05/2023]
Abstract
BACKGROUND The multifunctional transforming growth factor beta (TGF-β) is a glycoprotein that exists in three isoforms. TGF-β3 expression increases in fetal wound healing and reduces fibronectin and collagen I and III deposition, and also improves the architecture of the neodermis which is a combination of blood vessels and connective tissue during wound healing. Fibroblasts are key cells in the wound healing process. TGF-β3 plays a critical role in scar-free wound healing and fibroblast actions in the wound healing process. The aim of this study was to express the TGF-β3 gene (tgf-b3) in human foreskin fibroblasts (HFF's). METHODS We obtained HFF's from a newborn and a primary fibroblast culture was prepared. The cells were transfected with TGF-β3-pCMV6-XL5 plasmid DNA by both lipofection and electroporation. Expression of TGF-β3 was measured by enzyme-linked immunosorbent assay (ELISA). RESULTS The highest TGF-β3 expression (8.3-fold greater than control) was obtained by lipofection after 72 hours using 3 µl of transfection reagent. Expression was 1.4-fold greater than control by electroporation. CONCLUSIONS In this study, we successfully increased TGF-β3 expression in primary fibroblast cells. In the future, grafting these transfected fibroblasts onto wounds can help the healing process without scarring.
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Affiliation(s)
- Mahnaz Mahmoudi Rad
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Niki Mahmoudi Rad
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yasaman Mirdamadi
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Dermatology and Venereology, Otto-von Guericke University Magdeburg, Magdeburg, Germany
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11
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Bettahi I, Sun H, Gao N, Wang F, Mi X, Chen W, Liu Z, Yu FSX. Genome-wide transcriptional analysis of differentially expressed genes in diabetic, healing corneal epithelial cells: hyperglycemia-suppressed TGFβ3 expression contributes to the delay of epithelial wound healing in diabetic corneas. Diabetes 2014; 63:715-27. [PMID: 24306208 PMCID: PMC3900551 DOI: 10.2337/db13-1260] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Patients with diabetes mellitus (DM) may develop corneal complications and delayed wound healing. The aims of this study are to characterize the molecular signatures and biological pathways leading to delayed epithelial wound healing and to delineate the involvement of TGFβ3 therein. Genome-wide cDNA microarray analysis revealed 1,888 differentially expressed genes in the healing epithelia of normal (NL) versus type 1 DM rat corneas. Gene ontology and enrichment analyses indicated TGFβ signaling as a major altered pathway. Among three TGFβ isoforms, TGF-β1 and β3 were upregulated in response to wounding in NL corneal epithelial cells (CECs), whereas the latter was greatly suppressed by hyperglycemia in rat type 1 and 2 and mouse type 1 DM models. Functional analysis indicated that TGF-β3 contributed to wound healing in NL corneas. Moreover, exogenously added TGF-β3 accelerated epithelial wound closure in type 2 rat and type 1 mouse DM corneas via Smad and PI3K-AKT signaling pathways, autoregulation, and/or upregulation of Serpine1, a well-known TGFβ target gene. Taken together, our study for the first time provides a comprehensive list of genes differentially expressed in the healing CECs of NL versus diabetic corneas and suggests the therapeutic potential of TGF-β3 for treating corneal and skin wounds in diabetic patients.
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Affiliation(s)
- Ilham Bettahi
- Departments of Ophthalmology and Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI
| | - Haijing Sun
- Departments of Ophthalmology and Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI
| | - Nan Gao
- Departments of Ophthalmology and Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI
| | - Feng Wang
- Departments of Ophthalmology and Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI
| | - Xiaofan Mi
- Departments of Ophthalmology and Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI
| | - Weiping Chen
- Genomic Core Laboratory of National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
| | - Zuguo Liu
- Xiamen Eye Center, Key Laboratory of Ophthalmology and Visual Science of Fujian Province, Xiamen University, Xiamen, Fujian, China
| | - Fu-Shin X. Yu
- Departments of Ophthalmology and Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI
- Corresponding author: Fu-Shin X. Yu,
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12
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Li Y, He L, Zeng N, Sahu D, Cadenas E, Shearn C, Li W, Stiles BL. Phosphatase and tensin homolog deleted on chromosome 10 (PTEN) signaling regulates mitochondrial biogenesis and respiration via estrogen-related receptor α (ERRα). J Biol Chem 2013; 288:25007-25024. [PMID: 23836899 PMCID: PMC3757167 DOI: 10.1074/jbc.m113.450353] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 06/13/2013] [Indexed: 12/11/2022] Open
Abstract
Mitochondrial abnormalities are associated with cancer development, yet how oncogenic signals affect mitochondrial functions has not been fully understood. In this study, we investigate the relationship between mitochondrial alterations and PI3K/protein kinase B (AKT) signaling activation using hepatocytes and liver tissues as our experimental models. We show here that liver-specific deletion of Pten, which leads to activation of PI3K/AKT, is associated with elevated oxidative stress, increased mitochondrial mass, and augmented respiration accompanied by enhanced glycolysis. Consistent with these observations, estrogen-related receptor α (ERRα), an orphan nuclear receptor known for its role in mitochondrial biogenesis, is up-regulated in the absence of phosphatase and tensin homolog deleted on chromosome 10 (PTEN). Our pharmacological and genetic studies show that PI3K/AKT activity regulates the expression of ERRα and mitochondrial biogenesis/respiration. Furthermore, cAMP-response element-binding protein, as a downstream target of AKT, plays a role in the regulation of ERRα, independent of PKA signaling. ERRα regulates reactive oxygen species production, and ERRα knockdown attenuates proliferation and colony-forming potential in Pten-null hepatocytes. Finally, analysis of clinical datasets from liver tissues showed a negative correlation between expressions of ERRα and PTEN in patients with liver cancer. Therefore, this study has established a previously unrecognized link between a growth signal and mitochondrial metabolism.
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Affiliation(s)
- Yang Li
- From Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California 90089
| | - Lina He
- From Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California 90089
| | - Ni Zeng
- From Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California 90089
| | - Divya Sahu
- Department of Dermatology, Norris Comprehensive Cancer Center, Keck Medical Center, University of Southern California, Los Angeles, California 90033, and
| | - Enrique Cadenas
- From Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California 90089,; Biochemistry, Keck School of Medicine, and
| | - Colin Shearn
- Pharmaceutical Sciences, School of Pharmacy, University of Colorado, Aurora, Colorado 80045
| | - Wei Li
- Department of Dermatology, Norris Comprehensive Cancer Center, Keck Medical Center, University of Southern California, Los Angeles, California 90033, and
| | - Bangyan L Stiles
- From Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California 90089,; the Departments of Pathology and.
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13
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Rehder J, Bosnardo CAF, Kraft MBDPL, Frade MAC, Guillaumon AT, Batista FRX, Puzzi MB. A Comparative Study of Cell Therapy and Fibrin Glue Applied to Chronic Venous Ulcers. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.proeng.2013.05.097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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