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Kida M, Fatima I, Rozhkova E, Otero-Viñas M, Wu M, Kalin JH, Cole PA, Falanga V, Alani RM, Sharov AA. Inhibition of the CoREST Repressor Complex Promotes Wound Re-Epithelialization through the Regulation of Keratinocyte Migration. J Invest Dermatol 2024; 144:378-386.e2. [PMID: 37633457 PMCID: PMC10790709 DOI: 10.1016/j.jid.2023.07.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/24/2023] [Accepted: 07/31/2023] [Indexed: 08/28/2023]
Abstract
Wound healing is a complex process involving phases of hemostasis, inflammation, proliferation, and remodeling. The regenerative process in the skin requires coordination between many regulators, including signaling molecules, transcription factors, and the epigenetic machinery. In this study, we show that chromatin regulators HDAC1 and LSD1, key components of the CoREST repressor complex, are upregulated in the regenerating epidermis during wound repair. We also show that corin, a synthetic dual inhibitor of the CoREST complex and HDAC1/LSD1 activities, significantly accelerates wound closure through enhanced re-epithelialization in a mouse tail wound model. Acetylated H3K9 (methylation of histone H3 at lysine 9) expression, a histone modification targeted by HDAC1, is increased in keratinocytes after topical treatment with 100 nM and 1 μM of corin. In vitro experiments demonstrate that corin promotes migration and inhibits the proliferation of human keratinocytes. Furthermore, expression levels of genes promoting keratinocyte migration, such as AREG, CD24, EPHB2, ITGAX, PTGS, SCT1, SERPINB2, SERPINE1, SLPI, SNAI2, and TWIST, increased in keratinocytes treated with corin. These data demonstrate that dual inhibition of class I histone deacetylases and LSD1 by corin may serve as a new approach for promoting wound re-epithelialization and provide a platform for further applications of corin for the treatment of chronic wounds.
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Affiliation(s)
- Maki Kida
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA
| | - Iqra Fatima
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA
| | - Elena Rozhkova
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA
| | - Marta Otero-Viñas
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA; The Tissue Repair and Regeneration Laboratory (TR2Lab), Faculty of Sciences and Technology, University of Vic - Central University of Catalonia, Vic, Spain
| | - Muzhou Wu
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA
| | - Jay H Kalin
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Department of Biological Chemistry and Molecular Pharmacology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Philip A Cole
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Department of Biological Chemistry and Molecular Pharmacology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Vincent Falanga
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA
| | - Rhoda M Alani
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA
| | - Andrey A Sharov
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA.
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Deng JY, Wu XQ, He WJ, Liao X, Tang M, Nie XQ. Targeting DNA methylation and demethylation in diabetic foot ulcers. J Adv Res 2023; 54:119-131. [PMID: 36706989 DOI: 10.1016/j.jare.2023.01.009] [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: 12/05/2022] [Revised: 01/07/2023] [Accepted: 01/10/2023] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Poor wound healing is a significant complication of diabetes, which is commonly caused by neuropathy, trauma, deformities, plantar hypertension and peripheral arterial disease. Diabetic foot ulcers (DFU) are difficult to heal, which makes patients susceptible to infections and can ultimately conduce to limb amputation or even death in severe cases. An increasing number of studies have found that epigenetic alterations are strongly associated with poor wound healing in diabetes. AIM OF REVIEW This work provides significant insights into the development of therapeutics for improving chronic diabetic wound healing, particularly by targeting and regulating DNA methylation and demethylation in DFU. Key scientific concepts of review: DNA methylation and demethylation play an important part in diabetic wound healing, via regulating corresponding signaling pathways in different breeds of cells, including macrophages, vascular endothelial cells and keratinocytes. In this review, we describe the four main phases of wound healing and their abnormality in diabetic patients. Furthermore, we provided an in-depth summary and discussion on how DNA methylation and demethylation regulate diabetic wound healing in different types of cells; and gave a brief summary on recent advances in applying cellular reprogramming techniques for improving diabetic wound healing.
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Affiliation(s)
- Jun-Yu Deng
- Key Lab of the Basic Pharmacology of the Ministry of Education, Zunyi Medical University, Zunyi 563006, China; Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China; College of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Xing-Qian Wu
- College of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Wen-Jie He
- College of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Xin Liao
- Affiliated Hospital of Zunyi Medical University, Zunyi 563006, China
| | - Ming Tang
- Queensland University of Technology (QUT), School of Biomedical Sciences, Centre for Genomics and Personalized Health at the Translational Research Institute (TRI), Brisbane, QLD 4102, Australia.
| | - Xu-Qiang Nie
- Key Lab of the Basic Pharmacology of the Ministry of Education, Zunyi Medical University, Zunyi 563006, China; Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China; College of Pharmacy, Zunyi Medical University, Zunyi 563006, China; Queensland University of Technology (QUT), School of Biomedical Sciences, Centre for Genomics and Personalized Health at the Translational Research Institute (TRI), Brisbane, QLD 4102, Australia.
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3
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Lauterbach AL, Slezak AJ, Wang R, Cao S, Raczy MM, Watkins EA, Jimenez CJM, Hubbell JA. Mannose-Decorated Co-Polymer Facilitates Controlled Release of Butyrate to Accelerate Chronic Wound Healing. Adv Healthc Mater 2023; 12:e2300515. [PMID: 37503634 DOI: 10.1002/adhm.202300515] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/25/2023] [Indexed: 07/29/2023]
Abstract
Butyrate is a key bacterial metabolite that plays an important and complex role in modulation of immunity and maintenance of epithelial barriers. Its translation to clinic is limited by poor bioavailability, pungent smell, and the need for high doses, and effective delivery strategies have yet to realize clinical potential. Here, a novel polymeric delivery platform for tunable and sustainable release of butyrate consisting of a methacrylamide backbone with butyryl ester or phenyl ester side chains as well as mannosyl side chains, which is also applicable to other therapeutically relevant metabolites is reported. This platform's utility in the treatment of non-healing diabetic wounds is explored. This butyrate-containing material modulated immune cell activation in vitro and induced striking changes in the milieu of soluble cytokine and chemokine signals present within the diabetic wound microenvironment in vivo. This novel therapy shows efficacy in the treatment of non-healing wounds through the modulation of the soluble signals present within the wound, and importantly accommodates the critical temporal regulation associated with the wound healing process. Currently, the few therapies to address non-healing wounds demonstrate limited efficacy. This novel platform is positioned to address this large unmet clinical need and improve the closure of otherwise non-healing wounds.
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Affiliation(s)
- Abigail L Lauterbach
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - Anna J Slezak
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - Ruyi Wang
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - Shijie Cao
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - Michal M Raczy
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - Elyse A Watkins
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | | | - Jeffrey A Hubbell
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
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Chen C, Liu T, Tang Y, Luo G, Liang G, He W. Epigenetic regulation of macrophage polarization in wound healing. BURNS & TRAUMA 2023; 11:tkac057. [PMID: 36687556 PMCID: PMC9844119 DOI: 10.1093/burnst/tkac057] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 11/16/2022] [Indexed: 06/01/2023]
Abstract
The immune microenvironment plays a critical role in regulating skin wound healing. Macrophages, the main component of infiltrating inflammatory cells, play a pivotal role in shaping the immune microenvironment in the process of skin wound healing. Macrophages comprise the classic proinflammatory M1 subtype and anti-inflammatory M2 population. In the early inflammatory phase of skin wound closure, M1-like macrophages initiate and amplify the local inflammatory response to disinfect the injured tissue. In the late tissue-repairing phase, M2 macrophages are predominant in wound tissue and limit local inflammation to promote tissue repair. The biological function of macrophages is tightly linked with epigenomic organization. Transcription factors are essential for macrophage polarization. Epigenetic modification of transcription factors determines the heterogeneity of macrophages. In contrast, transcription factors also regulate the expression of epigenetic enzymes. Both transcription factors and epigenetic enzymes form a complex network that regulates the plasticity of macrophages. Here, we describe the latest knowledge concerning the potential epigenetic mechanisms that precisely regulate the biological function of macrophages and their effects on skin wound healing.
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Affiliation(s)
| | | | - Yuanyang Tang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Academy of Biological Engineering, Chongqing University, Chongqing, China
| | - Gaoxing Luo
- Correspondence. Gaoxing Luo, ; Guangping Liang, ; Weifeng He,
| | - Guangping Liang
- Correspondence. Gaoxing Luo, ; Guangping Liang, ; Weifeng He,
| | - Weifeng He
- Correspondence. Gaoxing Luo, ; Guangping Liang, ; Weifeng He,
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5
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Ran Y, Yan Z, Huang M, Zhou S, Wu F, Wang M, Yang S, Zhang P, Huang X, Jiang B, Liang P. Severe Burn Injury Significantly Alters the Gene Expression and m6A Methylation Tagging of mRNAs and lncRNAs in Human Skin. J Pers Med 2023; 13:jpm13010150. [PMID: 36675811 PMCID: PMC9864918 DOI: 10.3390/jpm13010150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/02/2023] [Accepted: 01/05/2023] [Indexed: 01/15/2023] Open
Abstract
N6-methyladenosine (m6A) modulates RNA metabolism and functions in cell differentiation, tissue development, and immune response. After acute burns, skin wounds are highly susceptible to infection and poor healing. However, our understanding of the effect of burn injuries on m6A methylation and their potential mechanism is still limited. Human m6A-mRNA&lncRNA Epitranscriptomic microarray was used to obtain comprehensive mRNA and lncRNA transcriptome m6A profiling and gene expression patterns after burn injuries in human skin tissue. Bioinformatic and functional analyses were conducted to find molecular functions. Microarray profiling showed that 65 mRNAs and 39 lncRNAs were significantly hypermethylated; 5492 mRNAs and 754 lncRNAs were significantly hypomethylated. Notably, 3989 hypomethylated mRNAs were down-expressed and inhibited many wound healing biological processes and pathways including in the protein catabolic process and supramolecular fiber organization pathway; 39 hypermethylated mRNAs were up-expressed and influenced the cell surface receptor signaling pathway and inflammatory response. Moreover, we validated that m6A regulators (METTL14, METTL16, ALKBH5, FMR1, and HNRNPC) were significantly downregulated after burn injury which may be responsible for the alteration of m6A modification and gene expression. In summary, we found that homeostasis in the skin was disrupted and m6A modification may be a potential mechanism affecting trauma infection and wound healing.
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Affiliation(s)
- Yanqin Ran
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Zhuoxian Yan
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Mitao Huang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Situo Zhou
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Fangqin Wu
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Mengna Wang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Sifan Yang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Pihong Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Xiaoyuan Huang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Bimei Jiang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha 410008, China
- Correspondence: (B.J.); (P.L.); Tel.: +86-0731-82355022 (B.J.); +86-13875858144 (P.L.)
| | - Pengfei Liang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
- Correspondence: (B.J.); (P.L.); Tel.: +86-0731-82355022 (B.J.); +86-13875858144 (P.L.)
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6
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Biondo-Simões R, Biondo-Simões MDLP, Ioshii SO, Robes RR, Dall'Antonia MDO. The effects of valproic acid on skin healing: experimental study in rats. Acta Cir Bras 2022; 37:e370403. [PMID: 35857935 PMCID: PMC9290763 DOI: 10.1590/acb370403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 03/07/2022] [Indexed: 11/30/2022] Open
Abstract
Purpose: To recognize the effects of valproic acid (VPA), an epigenetic drug, on the skin healing process. Methods: Sixty male Wistar rats were divided into two groups: the experiment treated with VPA (100 mg/kg/day); and the control, with 0.9% sodium chloride by gavage. Skin healing was studied in three moments (the third, the seventh, and the 14th day), evaluating the parameters: inflammatory reaction and its intensity (anti-LCA), angiogenesis (anti-CD34), collagen I and III (anti-collagen I, anti-collagen III and Picrosirius-red F3BA) and myofibroblasts (anti-alpha-AMS). Results: The inflammatory reaction was acute or sub-acute in both groups on the third day. On the seventh and the 14th day, chronic predominated in the control (p=0.006), and sub-acute in the experiment (p=0.020). There was a greater number of leukocytes in the group treated only on the third day (p=0.036). The number of vessels was lower in the treated group at the three times (p3=0.002, p7<0.001, and p14=0.027). Myofibroblasts were rare in the third day and moderate quantity in the remaining periods. Collagen I density was higher in the control at the three times (p<0.001) and collagen III in the treated group (p<0.001). Conclusions: VPA led to a more intense inflammatory reaction, decreased angiogenesis and collagen deposition, especially type I collagen.
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Affiliation(s)
- Rachel Biondo-Simões
- Fellow Master degree. Universidade Federal do Paraná - Postgraduate Program in Surgery Clinical - Curitiba (PR), Brazil
| | | | - Sérgio Ossamu Ioshii
- Full Professor. Universidade Federal do Paraná - Department of Pathology - Curitiba (PR), Brazil
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7
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Amjadian S, Moradi S, Mohammadi P. The emerging therapeutic targets for scar management: genetic and epigenetic landscapes. Skin Pharmacol Physiol 2022; 35:247-265. [PMID: 35696989 PMCID: PMC9533440 DOI: 10.1159/000524990] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 04/22/2022] [Indexed: 11/28/2022]
Abstract
Background Wound healing is a complex process including hemostasis, inflammation, proliferation, and remodeling during which an orchestrated array of biological and molecular events occurs to promote skin regeneration. Abnormalities in each step of the wound healing process lead to reparative rather than regenerative responses, thereby driving the formation of cutaneous scar. Patients suffering from scars represent serious health problems such as contractures, functional and esthetic concerns as well as painful, thick, and itchy complications, which generally decrease the quality of life and impose high medical costs. Therefore, therapies reducing cutaneous scarring are necessary to improve patients' rehabilitation. Summary Current approaches to remove scars, including surgical and nonsurgical methods, are not efficient enough, which is in principle due to our limited knowledge about underlying mechanisms of pathological as well as the physiological wound healing process. Thus, therapeutic interventions focused on basic science including genetic and epigenetic knowledge are recently taken into consideration as promising approaches for scar management since they have the potential to provide targeted therapies and improve the conventional treatments as well as present opportunities for combination therapy. In this review, we highlight the recent advances in skin regenerative medicine through genetic and epigenetic approaches to achieve novel insights for the development of safe, efficient, and reproducible therapies and discuss promising approaches for scar management. Key Message Genetic and epigenetic regulatory switches are promising targets for scar management, provided the associated challenges are to be addressed.
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Affiliation(s)
- Sara Amjadian
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- Department of Developmental Biology, University of Science and Culture, Tehran, Iran
| | - Sharif Moradi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Parvaneh Mohammadi
- Experimental Medicine and Therapy Research, University of Regensburg, Regensburg, Germany
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- *Parvaneh Mohammadi,
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Tschirley AM, Stockwell PA, Rodger EJ, Eltherington O, Morison IM, Christensen N, Chatterjee A, Hibma M. The Mouse Papillomavirus Epigenetic Signature Is Characterised by DNA Hypermethylation after Lesion Regression. Viruses 2021; 13:v13102045. [PMID: 34696474 PMCID: PMC8539022 DOI: 10.3390/v13102045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 10/07/2021] [Indexed: 12/17/2022] Open
Abstract
Papillomaviruses (PVs) are double-stranded DNA tumour viruses that can infect cutaneous and mucosal epidermis. Human papillomavirus (HPV) types have been linked to the causality of cutaneous squamous cell carcinoma (cSCC); however, HPV DNA is not always detected in the resultant tumour. DNA methylation is an epigenetic change that can contribute to carcinogenesis. We hypothesise that the DNA methylation pattern in cells is altered following PV infection. We tested if DNA methylation was altered by PV infection in the mouse papillomavirus (MmuPV1) model. Immunosuppressed mice were infected with MmuPV1 on cutaneous tail skin. Immunosuppression was withdrawn for some mice, causing lesions to spontaneously regress. Reduced representation bisulphite sequencing was carried out on DNA from the actively infected lesions, visibly regressed lesions, and mock-infected control mice. DNA methylation libraries were generated and analysed for differentially methylated regions throughout the genome. The presence of MmuPV1 sequences was also assessed. We identified 834 predominantly differentially hypermethylated fragments in regressed lesions, and no methylation differences in actively infected lesions. The promoter regions of genes associated with tumorigenicity, including the tumour suppressor protein DAPK1 and mismatch repair proteins MSH6 and PAPD7, were hypermethylated. Viral DNA was detected in active lesions and in some lesions that had regressed. This is the first description of the genome-wide DNA methylation landscape for active and regressed MmuPV1 lesions. We propose that the DNA hypermethylation in the regressed lesions that we report here may increase the susceptibility of cells to ultraviolet-induced cSCC.
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Affiliation(s)
- Allison M. Tschirley
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin 9054, New Zealand; (A.M.T.); (P.A.S.); (E.J.R.); (O.E.); (I.M.M.); (A.C.)
| | - Peter A. Stockwell
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin 9054, New Zealand; (A.M.T.); (P.A.S.); (E.J.R.); (O.E.); (I.M.M.); (A.C.)
| | - Euan J. Rodger
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin 9054, New Zealand; (A.M.T.); (P.A.S.); (E.J.R.); (O.E.); (I.M.M.); (A.C.)
| | - Oliver Eltherington
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin 9054, New Zealand; (A.M.T.); (P.A.S.); (E.J.R.); (O.E.); (I.M.M.); (A.C.)
| | - Ian M. Morison
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin 9054, New Zealand; (A.M.T.); (P.A.S.); (E.J.R.); (O.E.); (I.M.M.); (A.C.)
| | - Neil Christensen
- Department of Pathology, Pennsylvania State University, State College, PA 16802, USA;
| | - Aniruddha Chatterjee
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin 9054, New Zealand; (A.M.T.); (P.A.S.); (E.J.R.); (O.E.); (I.M.M.); (A.C.)
| | - Merilyn Hibma
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin 9054, New Zealand; (A.M.T.); (P.A.S.); (E.J.R.); (O.E.); (I.M.M.); (A.C.)
- Correspondence: ; Tel.: +64-3479-7726
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9
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Does Oxygen Content Play a Role in Spontaneous Closure of Perimembranous Ventricular Septal Defects? CHILDREN-BASEL 2021; 8:children8100881. [PMID: 34682146 PMCID: PMC8534918 DOI: 10.3390/children8100881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 09/28/2021] [Accepted: 09/30/2021] [Indexed: 11/21/2022]
Abstract
(1) Background: the impact of a series of laboratory parameters (haemoglobin, haematocrit, foetal haemoglobin, peripheral oxygen saturation, iron, transferrin, ferritin, and albumin) on perimembranous ventricular septal defects spontaneous healing was tested. (2) Methods: one hundred and seven patients were enrolled in the study (57% males; mean age 2.1 ± 0.4 years) and were subsequently subdivided into two groups: self-healing (n = 36) and in need of intervention (n = 71). Self-healing subjects were defined on the basis of an absence of residual shunts at colorDoppler across the previous defect. (3) Results: no statistically significant differences were reported in the size of perimembranous ventricular septal defects between the two groups (p = ns). Conversely, prevalence of anaemia was significantly higher in those requiring intervention than in the self-healing group (p < 0.03), while haemoglobin, iron, ferritin, and albumin levels were lower (p < 0.001, p < 0.05, p < 0.02, p < 0.007, respectively). In multivariable linear regression analysis, only haemoglobin and albumin were found to be associated with spontaneous closure (p < 0.005 and p < 0.02, respectively). In multiple logistic regression analysis, haemoglobin independently increased the probability of self-healing of perimembranous ventricular septal defects (p = 0.03). All patients needing an interventional closure of perimembranous ventricular septal defects presented with haemoglobin <12.7 g/dL. (4) Conclusion: the self-resolution of perimembranous ventricular septal defects seems to rely on numerous factors, including oxygen content, which is likely to promote cell proliferation as well as tissue regeneration. Haemoglobin blood concentration seems to influence the natural history of perimembranous ventricular septal defects and improvement of anaemia by supplementation of iron intake might represent a simple and reliable method to promote self-healing.
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10
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Li X, Liu C, Zhu Y, Rao H, Liu M, Gui L, Feng W, Tang H, Xu J, Gao WQ, Li L. SETD2 epidermal deficiency promotes cutaneous wound healing via activation of AKT/mTOR Signalling. Cell Prolif 2021; 54:e13045. [PMID: 33949020 PMCID: PMC8168411 DOI: 10.1111/cpr.13045] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/26/2021] [Accepted: 04/06/2021] [Indexed: 12/13/2022] Open
Abstract
Objectives Cutaneous wound healing is one of the major medical problems worldwide. Epigenetic modifiers have been identified as important players in skin development, homeostasis and wound repair. SET domain–containing 2 (SETD2) is the only known histone H3K36 tri‐methylase; however, its role in skin wound healing remains unclear. Materials and Methods To elucidate the biological role of SETD2 in wound healing, conditional gene targeting was used to generate epidermis‐specific Setd2‐deficient mice. Wound‐healing experiments were performed on the backs of mice, and injured skin tissues were collected and analysed by haematoxylin and eosin (H&E) and immunohistochemical staining. In vitro, CCK8 and scratch wound‐healing assays were performed on Setd2‐knockdown and Setd2‐overexpression human immortalized keratinocyte cell line (HaCaT). In addition, RNA‐seq and H3K36me3 ChIP‐seq analyses were performed to identify the dysregulated genes modulated by SETD2. Finally, the results were validated in functional rescue experiments using AKT and mTOR inhibitors (MK2206 and rapamycin). Results Epidermis‐specific Setd2‐deficient mice were successfully established, and SETD2 deficiency resulted in accelerated re‐epithelialization during cutaneous wound healing by promoting keratinocyte proliferation and migration. Furthermore, the loss of SETD2 enhanced the scratch closure and proliferation of keratinocytes in vitro. Mechanistically, the deletion of Setd2 resulted in the activation of AKT/mTOR signalling pathway, while the pharmacological inhibition of AKT and mTOR with MK2206 and rapamycin, respectively, delayed wound closure. Conclusions Our results showed that SETD2 loss promoted cutaneous wound healing via the activation of AKT/mTOR signalling.
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Affiliation(s)
- Xiaoxue Li
- State Key Laboratory of Oncogenes and Related Genes, School of Medicine and School of Biomedical Engineering, Renji Med-X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China.,School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Changwei Liu
- State Key Laboratory of Oncogenes and Related Genes, School of Medicine and School of Biomedical Engineering, Renji Med-X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China.,School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Yiwen Zhu
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hanyu Rao
- State Key Laboratory of Oncogenes and Related Genes, School of Medicine and School of Biomedical Engineering, Renji Med-X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China.,School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Min Liu
- State Key Laboratory of Oncogenes and Related Genes, School of Medicine and School of Biomedical Engineering, Renji Med-X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China.,School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Liming Gui
- State Key Laboratory of Oncogenes and Related Genes, School of Medicine and School of Biomedical Engineering, Renji Med-X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China.,School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Wenxin Feng
- State Key Laboratory of Oncogenes and Related Genes, School of Medicine and School of Biomedical Engineering, Renji Med-X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China.,School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Huayuan Tang
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Jin Xu
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Wei-Qiang Gao
- State Key Laboratory of Oncogenes and Related Genes, School of Medicine and School of Biomedical Engineering, Renji Med-X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China.,School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Li Li
- State Key Laboratory of Oncogenes and Related Genes, School of Medicine and School of Biomedical Engineering, Renji Med-X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China.,School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
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11
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Liu SC, Bamodu OA, Kuo KT, Fong IH, Lin CC, Yeh CT, Chen SG. Adipose-derived stem cell induced-tissue repair or wound healing is mediated by the concomitant upregulation of miR-21 and miR-29b expression and activation of the AKT signaling pathway. Arch Biochem Biophys 2021; 705:108895. [PMID: 33933426 DOI: 10.1016/j.abb.2021.108895] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 04/22/2021] [Accepted: 04/25/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Adipose-derived stem cells (ADSCs), a subpopulation of mesenchymal stem cells, are characterized by their potential to differentiate into multiple cell lineages. Due to their abundance and relative ease of procurement, ADSCs are widely used for tissue repair and regeneration. However, the molecular mechanisms of the therapeutic effect of ADSCs remain unknown. METHODS MicroRNAs have emerged as important signaling molecules in skin wound healing, and their roles in ADSC-based therapies must be addressed. Here, we investigated the potential of ADSCs in improving cutaneous wound healing in vitro and in vivo. RESULTS We simulated the microenvironment of the wound site by coculturing human dermal fibroblasts (HDFs) with ADSCs. We found that cocultured HDFs expressed significantly higher levels of miR-29b and miR-21 and had higher proliferation and migration rates than ADSCs cultured without HDFs. Moreover, increased expression of Collagen Type I Alpha 1 Chain (COL1A1), Collagen Type III Alpha 1 Chain (COL3A1), alpha-smooth muscle actin (α-SMA), vascular endothelial growth factor (VEGF), and Phosphoinositide 3-kinase (PI3K), p-Akt and decreased expression of Phosphatase and tensin homolog (PTEN) and matrix metalloproteinase (MMP)-1 was detected, suggesting extracellular remodeling and fibroblast activation and proliferation. We validated the in vitro results by using a rodent skin excisional wound model and implanted ADSC sheets in the wound. Compared with the controls, wounds implanted with ADSC sheets had significantly higher rates of wound-closure; increased expression of α-SMA, VEGF, PI3k, PTEN, COL1A1, and COL3A1; decreased expression of PTEN and MMP1; and upregulated levels of miR-29b and miR-21 in the skin. CONCLUSION In summary, we evidenced that ADSCs facilitate the increase in miR-29b and miR-21 levels and promote the activation and proliferation of dermal fibroblasts and extracellular matrix (ECM) remodeling, with the associated release of VEGF. Thus, the ADSC-mediated increase in microRNAs is essential in tissue repair and has a therapeutic potential in cutaneous wound healing.
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Affiliation(s)
- Shao-Cheng Liu
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei City, 114, Taiwan.
| | - Oluwaseun Adebayo Bamodu
- Department of Medical Research & Education, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan; Department of Hematology and Oncology, Cancer Center, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan.
| | - Kuang-Tai Kuo
- Division of Thoracic Surgery, Department of Surgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan; Division of Thoracic Surgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
| | - Iat-Hang Fong
- Department of Medical Research & Education, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan; Department of Hematology and Oncology, Cancer Center, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan.
| | - Chih-Cheng Lin
- Department of Biotechnology and Pharmaceutical, Yuanpei University of Medical Technology, No. 306, Yuanpei Street, Hsinchu, Taiwan.
| | - Chi-Tai Yeh
- Department of Medical Research & Education, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan; Department of Hematology and Oncology, Cancer Center, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan; Department of Biotechnology and Pharmaceutical, Yuanpei University of Medical Technology, No. 306, Yuanpei Street, Hsinchu, Taiwan.
| | - Shyi-Gen Chen
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan; Division of Plastic and Reconstructive Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
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12
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Pastar I, Marjanovic J, Stone RC, Chen V, Burgess JL, Mervis JS, Tomic-Canic M. Epigenetic regulation of cellular functions in wound healing. Exp Dermatol 2021; 30:1073-1089. [PMID: 33690920 DOI: 10.1111/exd.14325] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/04/2021] [Accepted: 03/08/2021] [Indexed: 02/06/2023]
Abstract
Stringent spatiotemporal regulation of the wound healing process involving multiple cell types is associated with epigenetic mechanisms of gene regulation, such as DNA methylation, histone modification and chromatin remodelling, as well as non-coding RNAs. Here, we discuss the epigenetic changes that occur during wound healing and the rapidly expanding understanding of how these mechanisms affect healing resolution in both acute and chronic wound milieu. We provide a focussed overview of current research into epigenetic regulators that contribute to wound healing by specific cell type. We highlight the role of epigenetic regulators in the molecular pathophysiology of chronic wound conditions. The understanding of how epigenetic regulators can affect cellular functions during normal and impaired wound healing could lead to novel therapeutic approaches, and we outline questions that can provide guidance for future research on epigenetic-based interventions to promote healing. Dissecting the dynamic interplay between cellular subtypes involved in wound healing and epigenetic parameters during barrier repair will deepen our understanding of how to improve healing outcomes in patients affected by chronic non-healing wounds.
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Affiliation(s)
- Irena Pastar
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Wound Healing and Regenerative Medicine Research Program, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jelena Marjanovic
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Wound Healing and Regenerative Medicine Research Program, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Rivka C Stone
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Wound Healing and Regenerative Medicine Research Program, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Vivien Chen
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Wound Healing and Regenerative Medicine Research Program, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jamie L Burgess
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Wound Healing and Regenerative Medicine Research Program, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Joshua S Mervis
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Wound Healing and Regenerative Medicine Research Program, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Marjana Tomic-Canic
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Wound Healing and Regenerative Medicine Research Program, University of Miami Miller School of Medicine, Miami, FL, USA
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13
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BETting against wound healing. Nat Chem Biol 2021; 17:233-235. [PMID: 33462495 DOI: 10.1038/s41589-020-00709-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Piipponen M, Li D, Landén NX. The Immune Functions of Keratinocytes in Skin Wound Healing. Int J Mol Sci 2020; 21:E8790. [PMID: 33233704 PMCID: PMC7699912 DOI: 10.3390/ijms21228790] [Citation(s) in RCA: 155] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 02/07/2023] Open
Abstract
As the most dominant cell type in the skin, keratinocytes play critical roles in wound repair not only as structural cells but also exerting important immune functions. This review focuses on the communications between keratinocytes and immune cells in wound healing, which are mediated by various cytokines, chemokines, and extracellular vesicles. Keratinocytes can also directly interact with T cells via antigen presentation. Moreover, keratinocytes produce antimicrobial peptides that can directly kill the invading pathogens and contribute to wound repair in many aspects. We also reviewed the epigenetic mechanisms known to regulate keratinocyte immune functions, including histone modifications, non-protein-coding RNAs (e.g., microRNAs, and long noncoding RNAs), and chromatin dynamics. Lastly, we summarized the current evidence on the dysregulated immune functions of keratinocytes in chronic nonhealing wounds. Based on their crucial immune functions in skin wound healing, we propose that keratinocytes significantly contribute to the pathogenesis of chronic wound inflammation. We hope this review will trigger an interest in investigating the immune roles of keratinocytes in chronic wound pathology, which may open up new avenues for developing innovative wound treatments.
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Affiliation(s)
| | | | - Ning Xu Landén
- Center for Molecular Medicine, Ming Wai Lau Centre for Reparative Medicine, Department of Medicine Solna, Dermatology and Venereology Division, Karolinska Institute, 17176 Stockholm, Sweden; (M.P.); (D.L.)
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