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Brocklehurst J. β-catenin: An important biomarker for wound healing. Int Wound J 2024; 21:e70090. [PMID: 39362675 PMCID: PMC11449500 DOI: 10.1111/iwj.70090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2024] [Accepted: 09/23/2024] [Indexed: 10/05/2024] Open
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2
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Somanader DVN, Zhao P, Widdop RE, Samuel CS. The involvement of the Wnt/β-catenin signaling cascade in fibrosis progression and its therapeutic targeting by relaxin. Biochem Pharmacol 2024; 223:116130. [PMID: 38490518 DOI: 10.1016/j.bcp.2024.116130] [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: 11/29/2023] [Revised: 02/06/2024] [Accepted: 03/12/2024] [Indexed: 03/17/2024]
Abstract
Organ scarring, referred to as fibrosis, results from a failed wound-healing response to chronic tissue injury and is characterised by the aberrant accumulation of various extracellular matrix (ECM) components. Once established, fibrosis is recognised as a hallmark of stiffened and dysfunctional tissues, hence, various fibrosis-related diseases collectively contribute to high morbidity and mortality in developed countries. Despite this, these diseases are ineffectively treated by currently-available medications. The pro-fibrotic cytokine, transforming growth factor (TGF)-β1, has emerged as the master regulator of fibrosis progression, owing to its ability to promote various factors and processes that facilitate rapid ECM synthesis and deposition, whilst negating ECM degradation. TGF-β1 signal transduction is tightly controlled by canonical (Smad-dependent) and non-canonical (MAP kinase- and Rho-associated protein kinase-dependent) intracellular protein activity, whereas its pro-fibrotic actions can also be facilitated by the Wnt/β-catenin pathway. This review outlines the pathological sequence of events and contributing roles of TGF-β1 in the progression of fibrosis, and how the Wnt/β-catenin pathway contributes to tissue repair in acute disease settings, but to fibrosis and related tissue dysfunction in synergy with TGF-β1 in chronic diseases. It also outlines the anti-fibrotic and related signal transduction mechanisms of the hormone, relaxin, that are mediated via its negative modulation of TGF-β1 and Wnt/β-catenin signaling, but through the promotion of Wnt/β-catenin activity in acute disease settings. Collectively, this highlights that the crosstalk between TGF-β1 signal transduction and the Wnt/β-catenin cascade may provide a therapeutic target that can be exploited to broadly treat and reverse established fibrosis.
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Affiliation(s)
- Deidree V N Somanader
- Cardiovascular Disease Program, Monash Biomedicine Discovery Institute and Department of Pharmacology, Monash University, Clayton, Victoria 3800, Australia
| | - Peishen Zhao
- Drug Discovery Biology Program, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Robert E Widdop
- Cardiovascular Disease Program, Monash Biomedicine Discovery Institute and Department of Pharmacology, Monash University, Clayton, Victoria 3800, Australia
| | - Chrishan S Samuel
- Cardiovascular Disease Program, Monash Biomedicine Discovery Institute and Department of Pharmacology, Monash University, Clayton, Victoria 3800, Australia; Department of Biochemistry and Pharmacology, University of Melbourne, Parkville, Victoria 3052, Australia.
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Li Y, Huang H, Gu C, Huang W, Chen X, Lu X, You A, Ye S, Zhong J, Zhao Y, Yan Y, Li C. Film-forming polymer solutions containing cholesterol myristate and berberine mediate pressure ulcer repair via the Wnt/β-catenin pathway. Wound Repair Regen 2024; 32:279-291. [PMID: 38353052 DOI: 10.1111/wrr.13158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 01/02/2024] [Accepted: 01/16/2024] [Indexed: 05/23/2024]
Abstract
Pressure ulcer (PU) is a worldwide problem that is difficult to address because of the related inflammatory response, local hypoxia, and repeated ischaemia/reperfusion, causing great suffering and financial burden to patients. Traditional Chinese medicine turtle plate powder can treat skin trauma, but its composition is complex and inconvenient to use. Here, we combined cholesterol myristate (S8) with berberine (BBR), with anti-inflammatory and antibacterial effects, as a drug and used hydroxypropyl methylcellulose and polyvinylpyrrolidone K30 as carriers to construct a novel film-forming polymeric solution (S8 + BBR FFPS), comprehensively study its reparative effect on PU and explore the potential mechanism in rat PU models. The results showed that S8 + BBR FFPS inhibits excessive inflammatory response, promotes re-epithelialization, and promotes hair follicle growth during the healing process of PU, which may be related to the activation of the Wnt/β-catenin signalling pathway by S8 + BBR FFPS to mediate hair follicle stem cell proliferation and maintain skin homeostasis. Therefore, S8 + BBR FFPS may be a potential candidate for the treatment of chronic skin injury, and its association with the Wnt/β-catenin signalling pathway may provide new ideas to guide the design of biomaterial-based wound dressings for chronic wound repair.
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Affiliation(s)
- Yu Li
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Haiting Huang
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Cuijin Gu
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wenyi Huang
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xianxian Chen
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaoting Lu
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Aijia You
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Sen Ye
- Research Center of Integrative Medicine, School Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
- College of Basic Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jun Zhong
- Research Center of Integrative Medicine, School Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
- College of Basic Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yao Zhao
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yu Yan
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chun Li
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
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Long X, Yuan Q, Tian R, Zhang W, Liu L, Yang M, Yuan X, Deng Z, Li Q, Sun R, Kang Y, Peng Y, Kuang X, Zeng L, Yuan Z. Efficient healing of diabetic wounds by MSC-EV-7A composite hydrogel via suppression of inflammation and enhancement of angiogenesis. Biomater Sci 2024; 12:1750-1760. [PMID: 38375548 DOI: 10.1039/d3bm01904g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Diabetes mellitus (DM) is characterized by prolonged hyperglycemia, impaired vascularization, and serious complications, such as blindness and chronic diabetic wounds. About 25% of patients with DM are estimated to encounter impaired healing of diabetic wounds, often leading to lower limb amputation. Multiple factors are attributed to the non-healing of diabetic wounds, including hyperglycaemia, chronic inflammation, and impaired angiogenesis. It is imperative to develop more efficient treatment strategies to tackle healing difficulties in diabetic wounds. Mesenchymal stem cell (MSC)-derived extracellular vesicles (EVs) are promising for diabetic wound healing considering their anti-inflammatory, pro-angiogenic and pro-proliferative activities. A histone deacetylase 7 (HDAC7)-derived 7-amino-acid peptide (7A) was shown to be highly effective for angiogenesis. However, it has never been investigated whether MSC-EVs are synergistic with 7A for the healing of diabetic wounds. Herein, we propose that MSC-EVs can be combined with 7A to greatly promote diabetic wound healing. The combination of EVs and 7A significantly improved the migration and proliferation of skin fibroblasts. Moreover, EVs alone significantly suppressed LPS-induced inflammation in macrophages, and notably, the combination treatment showed an even better suppression effect. Importantly, the in vivo study revealed that the combination therapy consisting of EVs and 7A in an alginate hydrogel was more efficient for the healing of diabetic wounds in rats than monotherapy using either EV or 7A hydrogels. The underlying mechanisms include suppression of inflammation, improvement of skin cell proliferation and migration, and enhanced collagen fiber disposition and angiogenesis in wounds. In summary, the MSC-EV-7A hydrogel potentially constitutes a novel therapy for efficient healing of chronic diabetic wounds.
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Affiliation(s)
- Xinyi Long
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P. R. China.
| | - Qian Yuan
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P. R. China.
| | - Rui Tian
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P. R. China.
| | - Wanting Zhang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P. R. China.
| | - Lang Liu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P. R. China.
| | - Minghui Yang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P. R. China.
| | - Xin Yuan
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P. R. China.
| | - Zhujie Deng
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P. R. China.
| | - Quanjiang Li
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P. R. China.
| | - Ronghui Sun
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P. R. China.
| | - Yuyi Kang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P. R. China.
| | - Yingying Peng
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P. R. China.
| | - Xiubin Kuang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P. R. China.
| | - Lingfang Zeng
- Cardiovascular Division, Faculty of Life Science and Medicine, King's College London, SE5 9NU, UK.
| | - Zhengqiang Yuan
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P. R. China.
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Girich AS. WntA and Wnt4 during the regeneration of internal organs in the holothurian Eupentacta fraudatrix. Genesis 2024; 62:e23562. [PMID: 37846177 DOI: 10.1002/dvg.23562] [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: 06/05/2023] [Revised: 09/25/2023] [Accepted: 09/27/2023] [Indexed: 10/18/2023]
Abstract
BACKGROUND Over the past few years, it has been established that wnt genes are involved in the regenerative processes of holothurians. The wnt4 gene was identified as one of the most active genes in Eupentacta fraudatrix regeneration using differential gene expression analysis and qPCR of individual genes. Also, the wntA gene was found in holothurians, which is present only in invertebrates and can perform unique functions. RESULTS In this regard, both these genes and proteins were studied in this work. During regeneration, the Wnt4 protein is found in the cells of the coelomic and ambulacral epithelium, retractor muscles, and radial nerves. Single cells with this protein are also found in the connective tissue of the developing aquapharyngeal bulb and in the hypoderm of the body wall. Cells with WntA are found exclusively in the hypoderm of the body wall. CONCLUSION We assume that both genes are involved in regeneration, but Wnt4 coordinates the formation of the epithelial tissue structure, while WntA maintains the state of the intercellular substance of the body wall.
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Affiliation(s)
- A S Girich
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, Russia
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Farhangniya M, Mohamadi Farsani F, Salehi N, Samadikuchaksaraei A. Integrated Bioinformatic Analysis of Differentially Expressed Genes Associated with Wound Healing. CELL JOURNAL 2023; 25:874-882. [PMID: 38192258 PMCID: PMC10777322 DOI: 10.22074/cellj.2023.2007217.1368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 10/28/2023] [Accepted: 11/07/2023] [Indexed: 01/10/2024]
Abstract
OBJECTIVE Wound healing is a complex process involving the coordinated interaction of various genes and molecular pathways. The study aimed to uncover novel therapeutic targets, biomarkers and candidate genes for drug development to improve successful wound repair interventions. Materials and Methods: This study is a network-meta analysis study. Nine wound healing microarray datasets obtained from the Gene Expression Omnibus (GEO) database were used for this study. Differentially expressed genes (DEGs) were described using the Limma package and shared genes were used as input for weighted gene co-expression network analysis. The Gene Ontology analysis was performed using the EnrichR web server, and construction of a protein-protein interaction (PPI) network was achieved by the STRING and Cytoscape. Results: A total of 424 DEGs were determined. A co-expression network was constructed using 7692 shared genes between nine data sets, resulting in the identification of seven modules. Among these modules, those with the top 20 genes of up and down-regulation were selected. The top down-regulated genes, including TJP1, SEC61A1, PLEK, ATP5B, PDIA6, PIK3R1, SRGN, SDC2, and RBBP7, and the top up-regulated genes including RPS27A, EEF1A1, HNRNPA1, CTNNB1, POLR2A, CFL1, CSNk1E, HSPD1, FN1, and AURKB, which can potentially serve as therapeutic targets were identified. The KEGG pathway analysis found that the majority of the genes are enriched in the "Wnt signaling pathway". Conclusion: In our study of nine wound healing microarray datasets, we identified DEGs and co-expressed modules using WGCNA. These genes are involved in important cellular processes such as transcription, translation, and posttranslational modifications. We found nine down-regulated genes and ten up-regulated genes, which could serve as potential therapeutic targets for further experimental validation. Targeting pathways related to protein synthesis and cell adhesion and migration may enhance wound healing, but additional experimental validation is needed to confirm the effectiveness and safety of targeted interventions.
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Affiliation(s)
- Mansoureh Farhangniya
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Najmeh Salehi
- School of Biological Sciences, Institute for Research in Fundamental Sciences (IPM), Tehran, Iran
| | - Ali Samadikuchaksaraei
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran.
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Bonnici L, Suleiman S, Schembri-Wismayer P, Cassar A. Targeting Signalling Pathways in Chronic Wound Healing. Int J Mol Sci 2023; 25:50. [PMID: 38203220 PMCID: PMC10779022 DOI: 10.3390/ijms25010050] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/11/2023] [Accepted: 12/15/2023] [Indexed: 01/12/2024] Open
Abstract
Chronic wounds fail to achieve complete closure and are an economic burden to healthcare systems due to the limited treatment options and constant medical attention. Chronic wounds are characterised by dysregulated signalling pathways. Research has focused on naturally derived compounds, stem-cell-based therapy, small molecule drugs, oligonucleotide delivery nanoparticles, exosomes and peptide-based platforms. The phosphoinositide-3-kinase (PI3K)/protein kinase B (AKT), Wingless-related integration (Wnt)/β-catenin, transforming growth factor-β (TGF-β), nuclear factor erythroid 2-related factor 2 (Nrf2), Notch and hypoxia-inducible factor 1 (HIF-1) signalling pathways have critical roles in wound healing by modulating the inflammatory, proliferative and remodelling phases. Moreover, several regulators of the signalling pathways were demonstrated to be potential treatment targets. In this review, the current research on targeting signalling pathways under chronic wound conditions will be discussed together with implications for future studies.
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Affiliation(s)
| | | | | | - Analisse Cassar
- Department of Anatomy, University of Malta, MSD 2080 Msida, Malta; (L.B.); (S.S.); (P.S.-W.)
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Abstract
BACKGROUND Scars are a vexing sequela of surgery. Microneedling, also known as Minimally Invasive Percutaneous Collagen Induction (MIPCI), has demonstrated impressive improvements in chronic acne scars; however, no evidence exists for treating post-surgical scars during active wound healing. The purpose of this study was to demonstrate the utility and safe use of MIPCI in acute post-surgical scars. METHODS Twenty-five subjects who underwent surgery had scars treated with 3 treatments of MIPCI in the postoperative period. Scar assessment was measured by Vancouver Scar Scale (VSS), Patient & Observer Scar Assessment Scale (POSAS) and Global Aesthetic Improvement Scale (GAIS) after each of the 3 treatments and at final 2 month follow up. RESULTS Patients had positive improvement in VSS, POSAS and GAIS at 16-week post treatment initiation evaluation compared to initial measurement (p value<0.001). No statistically significant differences were noted when comparing the age of the patient, location of scars or Fitzpatrick Phototype Scales between patients. However, when comparing patients who began treatment early (week 6 to 7 post-op) to those who began treatment late (week 13 to 16 postop), there was a statistically significant difference in the POSAS group (p value <0.04). CONCLUSIONS Post-surgical scars treated with MIPCI in the maturation and remodeling phase had no adverse outcomes. Interestingly, our data shows treatment initiated early in the maturation phase (6-7 weeks post-op) while natural collagen formation was tapering off demonstrated improved aesthetic outcomes compared to treatments initiated late in the maturation phase (13-16wk post-op).
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Griffin MF, Huber J, Evan FJ, Quarto N, Longaker MT. The role of Wnt signaling in skin fibrosis. Med Res Rev 2021; 42:615-628. [PMID: 34431110 DOI: 10.1002/med.21853] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 05/14/2021] [Accepted: 08/17/2021] [Indexed: 12/20/2022]
Abstract
Skin fibrosis is the excessive deposition of extracellular matrix in the dermis. Cutaneous fibrosis can occur following tissue injury, including burns, trauma, and surgery, resulting in scars that are disfiguring, limit movement and cause significant psychological distress for patients. Many molecular pathways have been implicated in the development of skin fibrosis, yet effective treatments to prevent or reverse scarring are unknown. The Wnt signaling pathways are known to play an important role in skin homeostasis, skin injury, and in the development of fibrotic skin diseases. This review provides a detailed overview of the role of the canonical Wnt signaling pathways in regulating skin scarring. We also discuss how Wnt signaling interacts with other known fibrotic molecular pathways to cause skin fibrosis. We further provide a summary of the different Wnt inhibitor types available for treating skin scarring. Understanding the role of the Wnt pathway in cutaneous fibrosis will accelerate the development of effective Wnt modulators for the treatment of skin fibrosis.
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Affiliation(s)
- Michelle F Griffin
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford, California, USA
| | - Julika Huber
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford, California, USA
| | - Fahy J Evan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford, California, USA
| | - Natalina Quarto
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford, California, USA.,Stanford Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Michael T Longaker
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford, California, USA.,Stanford Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
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Yang Z, Zou L, Sun T, Xu W, Zeng L, Jia Y, Jiang J, Deng J, Yang X. Genome-Wide Association Study Using Whole-Genome Sequencing Identifies a Genomic Region on Chromosome 6 Associated With Comb Traits in Nandan-Yao Chicken. Front Genet 2021; 12:682501. [PMID: 34408769 PMCID: PMC8365347 DOI: 10.3389/fgene.2021.682501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 07/05/2021] [Indexed: 11/13/2022] Open
Abstract
Comb traits have potential economic value in the breeding of indigenous chickens in China. Identifying and understanding relevant molecular markers for comb traits can be beneficial for genetic improvement. The purpose of this study was to utilize genome-wide association studies (GWAS) to detect promising loci and candidate genes related to comb traits, namely, comb thickness (CT), comb weight (CW), comb height, comb length (CL), and comb area. Genome-wide single-nucleotide polymorphisms (SNPs) and small insertions/deletions (INDELs) in 300 Nandan-Yao chickens were detected using whole-genome sequencing. In total, we identified 134 SNPs and 25 INDELs that were strongly associated with the five comb traits. A remarkable region spanning from 29.6 to 31.4 Mb on chromosome 6 was found to be significantly associated with comb traits in both SNP- and INDEL-based GWAS. In this region, two lead SNPs (6:30,354,876 for CW and CT and 6:30,264,318 for CL) and one lead INDEL (a deletion from 30,376,404 to 30,376,405 bp for CL and CT) were identified. Additionally, two genes were identified as potential candidates for comb development. The nearby gene fibroblast growth factor receptor 2 (FGFR2)-associated with epithelial cell migration and proliferation-and the gene cytochrome b5 reductase 2 (CYB5R2)-identified on chromosome 5 from INDEL-based GWAS-are significantly correlated with collagen maturation. The findings of this study could provide promising genes and biomarkers to accelerate genetic improvement of comb development based on molecular marker-assisted breeding in Nandan-Yao chickens.
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Affiliation(s)
- Zhuliang Yang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Leqin Zou
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Tiantian Sun
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Wenwen Xu
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Linghu Zeng
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Yinhai Jia
- Guangxi Institute of Animal Science, Nanning, China
| | - Jianping Jiang
- Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Jixian Deng
- Guangxi Institute of Animal Science, Nanning, China
| | - Xiurong Yang
- College of Animal Science and Technology, Guangxi University, Nanning, China
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Dinescu S, Dobranici A, Tecucianu R, Selaru A, Balahura R, Ignat S, Costache M. Exosomes as Part of the Human Adipose-Derived Stem Cells Secretome- Opening New Perspectives for Cell-Free Regenerative Applications. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1312:139-163. [PMID: 32986128 DOI: 10.1007/5584_2020_588] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Human adipose-derived stem cells (hASCs) represent a great resource for regenerative medicine based on their accessibility, self-renewal potential, low immunogenicity, high proliferative rate and potential to differentiate on multiple lineages. Their secretome is rich in chemokines, cytokines and protein growth factors that are actively involved in regeneration processes. In addition, part of this secretome are also the exosomes (hASC-exos), which display high content in proteins, messenger RNAs (mRNAs) and non-coding RNAs (ncRNAs). Due to their content, exosomes promote tissue regeneration by different mechanisms, either by activating or inhibiting several signaling pathways involved in wound healing, extracellular matrix remodeling, immunomodulation, angiogenesis, anti-apoptotic activity and cell migration, proliferation and differentiation. The use of hASC-exos may provide an improved alternative to standard therapies used in regenerative medicine, as a cell-free new approach with multiple possibilities to be modulated according to the patient needs. This review offers an updated overview on the functions and applications of hASC-exos in all areas of tissue regeneration, aiming to highlight to the reader the benefits of using hASCs in modern tissue engineering and regenerative medicine applications.
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Affiliation(s)
- Sorina Dinescu
- Department of Biochemistry and Molecular Biology, University of Bucharest, Bucharest, Romania. .,The Research Institute of the University of Bucharest, Bucharest, Romania.
| | - Alexandra Dobranici
- Department of Biochemistry and Molecular Biology, University of Bucharest, Bucharest, Romania
| | - Ramona Tecucianu
- Department of Biochemistry and Molecular Biology, University of Bucharest, Bucharest, Romania
| | - Aida Selaru
- Department of Biochemistry and Molecular Biology, University of Bucharest, Bucharest, Romania.,Victor Babes National Institute of Pathology, Bucharest, Romania
| | - Roxana Balahura
- Department of Biochemistry and Molecular Biology, University of Bucharest, Bucharest, Romania.,Victor Babes National Institute of Pathology, Bucharest, Romania
| | - Simona Ignat
- Department of Biochemistry and Molecular Biology, University of Bucharest, Bucharest, Romania
| | - Marieta Costache
- Department of Biochemistry and Molecular Biology, University of Bucharest, Bucharest, Romania.,The Research Institute of the University of Bucharest, Bucharest, Romania
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Culley OJ, Louis B, Philippeos C, Oulès B, Tihy M, Segal JM, Hyliands D, Jenkins G, Bhogal RK, Siow RC, Watt FM. Differential Expression of Insulin-Like Growth Factor 1 and Wnt Family Member 4 Correlates With Functional Heterogeneity of Human Dermal Fibroblasts. Front Cell Dev Biol 2021; 9:628039. [PMID: 33889572 PMCID: PMC8056032 DOI: 10.3389/fcell.2021.628039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 03/09/2021] [Indexed: 11/22/2022] Open
Abstract
Although human dermis contains distinct fibroblast subpopulations, the functional heterogeneity of fibroblast lines from different donors is under-appreciated. We identified one commercially sourced fibroblast line (c64a) that failed to express α-smooth muscle actin (α-SMA), a marker linked to fibroblast contractility, even when treated with transforming growth factor-β1 (TGF-β1). Gene expression profiling identified insulin-like growth factor 1 (IGF1) as being expressed more highly, and Asporin (ASPN) and Wnt family member 4 (WNT4) expressed at lower levels, in c64a fibroblasts compared to three fibroblast lines that had been generated in-house, independent of TGF-β1 treatment. TGF-β1 increased expression of C-X-C motif chemokine ligand 1 (CXCL1) in c64a cells to a greater extent than in the other lines. The c64a gene expression profile did not correspond to any dermal fibroblast subpopulation identified by single-cell RNAseq of freshly isolated human skin cells. In skin reconstitution assays, c64a fibroblasts did not support epidermal stratification as effectively as other lines tested. In fibroblast lines generated in-house, shRNA-mediated knockdown of IGF1 increased α-SMA expression without affecting epidermal stratification. Conversely, WNT4 knockdown had no consistent effect on α-SMA expression, but increased the ability of fibroblasts to support epidermal stratification. Thus, by comparing the properties of different lines of cultured dermal fibroblasts, we have identified IGF1 and WNT4 as candidate mediators of two distinct dermal functions: myofibroblast formation and epidermal maintenance.
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Affiliation(s)
- Oliver J Culley
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, London, United Kingdom
| | - Blaise Louis
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, London, United Kingdom
| | - Christina Philippeos
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, London, United Kingdom
| | - Bénédicte Oulès
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, London, United Kingdom
| | - Matthieu Tihy
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, London, United Kingdom
| | - Joe M Segal
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, London, United Kingdom
| | - Della Hyliands
- Unilever R&D Colworth, Colworth Science Park, Bedford, United Kingdom
| | - Gail Jenkins
- Unilever R&D Colworth, Colworth Science Park, Bedford, United Kingdom
| | - Ranjit K Bhogal
- Unilever R&D Colworth, Colworth Science Park, Bedford, United Kingdom
| | - Richard C Siow
- Cardiovascular Division, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
| | - Fiona M Watt
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, London, United Kingdom
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Bukowska J, Walendzik K, Kopcewicz M, Cierniak P, Gawronska-Kozak B. Wnt signaling and the transcription factor Foxn1 contribute to cutaneous wound repair in mice. Connect Tissue Res 2021; 62:238-248. [PMID: 31690137 DOI: 10.1080/03008207.2019.1688314] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Aim: The transcription factor Foxn1 is a regulator of scar-ended cutaneous wound healing in mice. However, the link between Foxn1 and Wnt signaling has not been explored in the context of cutaneous repair. Here, we investigate the effects of β-catenin-dependent and -independent Wnt signaling represented by Wnt10a and Wnt11, respectively, in healing of full-thickness cutaneous wounds in C57BL/6 mice. Material and Methods: Quantitative polymerase chain reaction, western blot, and immunostaining were performed to assess the spatial and temporal distribution of Wnt10a, Wnt11, and β-catenin in skin during wound healing. A co-culture system consisting of keratinocytes transfected with an adenoviral vector carrying Foxn1-GFP and dermal fibroblasts (DFs) was employed to determine the influence of epidermal signals on the capacity of DFs to produce extracellular matrix (ECM) proteins in vitro. The levels of types I and III collagen in conditioned media from DFs cultures were examined via enzyme-linked immunosorbent assay. Results: The expression of Wnt10a, Wnt11, and β-catenin increased at post-wounding days 14 and 21 when tissue remodeling occurred. Foxn1::Egfp transgenic mice experiments demonstrated that Wnts were abundant in the epidermis adjacent to the wound margin and to a lesser extent in the dermis. The Wnt10a signal colocalized with Foxn1-eGFP in the epithelial tongue and neo-epidermis during the initial stage of wound healing. Foxn1 overexpression in keratinocytes affected DFs function related to collagen synthesis. Conclusions: Wnt ligands contribute to cutaneous wound repair, predominantly by engagement in ECM maturation. The data indicates a possible relationship between Foxn1 and Wnts in post-traumatic skin tissue.
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Affiliation(s)
- Joanna Bukowska
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences , Olsztyn, Poland
| | - Katarzyna Walendzik
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences , Olsztyn, Poland
| | - Marta Kopcewicz
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences , Olsztyn, Poland
| | - Patrycja Cierniak
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences , Olsztyn, Poland
| | - Barbara Gawronska-Kozak
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences , Olsztyn, Poland
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Chen RF, Lin YN, Liu KF, Wang CT, Ramachandran S, Wang CJ, Kuo YR. The Acceleration of Diabetic Wound Healing by Low-Intensity Extracorporeal Shockwave Involves in the GSK-3β Pathway. Biomedicines 2020; 9:biomedicines9010021. [PMID: 33396580 PMCID: PMC7824083 DOI: 10.3390/biomedicines9010021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 12/14/2020] [Accepted: 12/24/2020] [Indexed: 01/10/2023] Open
Abstract
Previous studies have demonstrated that extracorporeal shock wave therapy (ESWT) could accelerate diabetic wound healing and that the inhibition of glycogen synthase kinase-3β (GSK-3β) is involved in epithelial differentiation during wound healing. This study investigated whether the enhancement of diabetic wound healing by ESWT is associated with the GSK-3β-mediated Wnt/β-catenin signaling pathway. A dorsal skin wounding defect model using streptozotocin-induced diabetic rodents was established. Rats were divided into 4 groups: group 1, normal controls without diabetes; group 2, diabetic controls without treatment; group 3, diabetic rats receiving ESWT; and group 4, rats receiving 6-bromoindirubin-3′oxime (BIO), a GSK-3β inhibitor, to trigger Wnt/β-catenin signaling. Tissue samples were collected and analyzed by immunohistochemical (IHC) staining and quantitative RT-PCR. The ESWT and BIO-treated groups both exhibited significant promotion of wound healing compared to the healing in controls without treatment. RT-PCR analysis of Wnt-1, -3a, -4, -5a, and -10 and β-catenin expression showed significantly increased expression in the ESWT group. The IHC staining showed that Wnt-3a and -5a and β-catenin levels were significantly increased in the ESWT and BIO treatment groups compared to the control groups. ESWT enhancement of diabetic wound healing is associated with modulation of the GSK-3β-mediated Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Rong-Fu Chen
- Division of Plastic Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (R.-F.C.); (Y.-N.L.); (K.-F.L.); (C.-T.W.)
| | - Yun-Nan Lin
- Division of Plastic Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (R.-F.C.); (Y.-N.L.); (K.-F.L.); (C.-T.W.)
| | - Keng-Fan Liu
- Division of Plastic Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (R.-F.C.); (Y.-N.L.); (K.-F.L.); (C.-T.W.)
| | - Chun-Ting Wang
- Division of Plastic Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (R.-F.C.); (Y.-N.L.); (K.-F.L.); (C.-T.W.)
| | - Savitha Ramachandran
- Department of Plastic and Reconstructive Surgery, KK Women’s and Children’s Hospital, Singapore 229899, Singapore;
| | - Ching-Jen Wang
- Department of Orthopaedics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan;
| | - Yur-Ren Kuo
- Division of Plastic Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (R.-F.C.); (Y.-N.L.); (K.-F.L.); (C.-T.W.)
- Faculty of Medicine, College of Medicine, Orthopaedic Research Center, Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
- Academic Clinical Programme for Musculoskeletal Sciences, Duke-NUS Graduate Medical School, Singapore 169857, Singapore
- Correspondence: ; Tel.: +886-7-3121101 (ext. 7675); Fax: +886-7-7311482
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15
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Yang S, Zhao J, Huang S, Shu B, Yang R, Chen L, Xu Y, Xie J, Liu X, Jia J, Qi S. Reduced hydration-induced decreased caveolin-1 expression causes epithelial-to-mesenchymal transition. Am J Transl Res 2020; 12:8067-8083. [PMID: 33437382 PMCID: PMC7791524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 10/22/2020] [Indexed: 06/12/2023]
Abstract
The reduced hydration environment induced by disruption of epithelial barrier function after injury results in excessive scarring, but the underlying mechanisms are poorly understood. We demonstrated that exposing keratinocytes to a reduced hydration environment causes epithelial-to-mesenchymal transition (EMT) and induces caveolin-1-dependent downregulation of E-cadherin. Reduced caveolin-1 expression and increased Snail expression are associated with low expression levels of E-cadherin. Caveolin-1 downregulation increases the transcriptional activity of β-catenin-TCF/LEF-1, and overexpression of caveolin-1 inhibits EMT that results from reduced hydration. Our findings suggest a role for caveolin-1 downregulation in linking aberrant EMT to the reduced hydration environment: findings that may lead to new developments in the prevention and treatment of hypertrophic scar.
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Affiliation(s)
- Shuai Yang
- Department of Neurosurgery, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou, China
| | - Jingling Zhao
- Department of Burns, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou, China
| | - Shixin Huang
- Department of Burns, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou, China
| | - Bin Shu
- Department of Burns, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou, China
| | - Ronghua Yang
- Department of Burn Surgery, The First People’s Hospital of FoshanFoshan, China
| | - Lei Chen
- Department of Neurosurgery, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou, China
| | - Yingbin Xu
- Department of Neurosurgery, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou, China
| | - Julin Xie
- Department of Burns, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou, China
| | - Xusheng Liu
- Department of Burns, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou, China
| | - Ji Jia
- Department of Anesthesiology, General Hospital of Southern Theatre Command of PLAGuangzhou, China
| | - Shaohai Qi
- Department of Burns, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou, China
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16
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Goto K, Ishikawa M, Aizawa D, Muramatsu K, Naka M, Sugino T. Nuclear β-catenin immunoexpression in scars. J Cutan Pathol 2020; 48:18-23. [PMID: 32652763 DOI: 10.1111/cup.13806] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/11/2020] [Accepted: 07/01/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Histopathologically, scars can mimic superficial fibromatoses. Superficial fibromatoses are known to show nuclear β-catenin immunoexpression, although the tumor types do not harbor CTNNB1 or APC alterations. This study aimed to evaluate nuclear β-catenin immunoexpression in scars compared to that in superficial fibromatoses. METHODS Immunostaining with an anti-β-catenin antibody, clone 14, was performed on 8 superficial fibromatoses and 22 scars. The extent of β-catenin nuclear staining was classified as negative (<10%), focally positive (10-49%), or diffusely positive (50-100%). β-catenin staining intensity was semi-quantitatively graded as weak, moderate, or strong. RESULTS In 21 (95%) scars, nuclear β-catenin immunoexpression was detected in fibroblasts/myofibroblasts, with mainly diffuse (16/21) and moderate (14/21) to strong (5/21) staining. In contrast, seven (88%) of the eight superficial fibromatoses expressed β-catenin in the nuclei of the lesional spindle cells, at varying levels of staining intensity. Fibroblasts in normal papillary dermis always showed nuclear β-catenin expression to varying degrees but those in the reticular dermis did not. CONCLUSIONS Scars typically exhibit nuclear β-catenin expression similar to that in superficial fibromatoses. Thus, β-catenin immunohistochemistry is not suitable for distinguishing superficial fibromatoses from scars.
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Affiliation(s)
- Keisuke Goto
- Department of Pathology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan.,Department of Pathology, Itabashi Central Clinical Laboratory, Tokyo, Japan.,Department of Diagnostic Pathology, Shizuoka Cancer Center Hospital, Sunto, Japan.,Department of Diagnostic Pathology and Cytology, Osaka International Cancer Institute, Osaka, Japan.,Department of Dermatology, Hyogo Cancer Center, Akashi, Japan
| | - Misawo Ishikawa
- Department of Diagnostic Pathology, Kainan Hospital, Yatomi, Japan
| | - Daisuke Aizawa
- Department of Diagnostic Pathology, Shizuoka Cancer Center Hospital, Sunto, Japan.,Department of Pathology, The Jikei University School of Medicine, Tokyo, Japan
| | - Koji Muramatsu
- Department of Diagnostic Pathology, Shizuoka Cancer Center Hospital, Sunto, Japan
| | - Miho Naka
- Department of Diagnostic Pathology, Shizuoka Cancer Center Hospital, Sunto, Japan
| | - Takashi Sugino
- Department of Diagnostic Pathology, Shizuoka Cancer Center Hospital, Sunto, Japan
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17
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Park S, Ko E, Lee JH, Song Y, Cui CH, Hou J, Jeon BM, Kim HS, Kim SC. Gypenoside LXXV Promotes Cutaneous Wound Healing In Vivo by Enhancing Connective Tissue Growth Factor Levels Via the Glucocorticoid Receptor Pathway. Molecules 2019; 24:molecules24081595. [PMID: 31018484 PMCID: PMC6515290 DOI: 10.3390/molecules24081595] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 04/18/2019] [Accepted: 04/22/2019] [Indexed: 12/17/2022] Open
Abstract
Cutaneous wound healing is a well-orchestrated event in which many types of cells and growth factors are involved in restoring the barrier function of skin. In order to identify whether ginsenosides, the main active components of Panax ginseng, promote wound healing, the proliferation and migration activities of 15 different ginsenosides were tested by MTT assay and scratched wound closure assay. Among ginsenosides, gypenoside LXXV (G75) showed the most potent wound healing effects. Thus, this study aimed to investigate the effects of G75 on wound healing in vivo and characterize associated molecular changes. G75 significantly increased proliferation and migration of keratinocytes and fibroblasts, and promoted wound closure in an excision wound mouse model compared with madecassoside (MA), which has been used to treat wounds. Additionally, RNA sequencing data revealed G75-mediated significant upregulation of connective tissue growth factor (CTGF), which is known to be produced via the glucocorticoid receptor (GR) pathway. Consistently, the increase in production of CTGF was confirmed by western blot and ELISA. In addition, GR-competitive binding assay and GR translocation assay results demonstrated that G75 can be bound to GR and translocated into the nucleus. These results demonstrated that G75 is a newly identified effective component in wound healing.
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Affiliation(s)
- Sungjoo Park
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea.
| | - Eunsu Ko
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea.
| | - Jun Hyoung Lee
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea.
| | - Yoseb Song
- Department of Biological Sciences and KI for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea.
| | - Chang-Hao Cui
- Intelligent Synthetic Biology Center, Daejeon 34141, Korea.
| | - Jingang Hou
- Intelligent Synthetic Biology Center, Daejeon 34141, Korea.
| | - Byeong Min Jeon
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea.
| | - Hun Sik Kim
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Korea.
| | - Sun Chang Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea.
- Intelligent Synthetic Biology Center, Daejeon 34141, Korea.
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18
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β-Catenin-Dependent Wnt Signaling: A Pathway in Acute Cutaneous Wounding: Retraction. Plast Reconstr Surg 2018; 142:1107. [PMID: 30252825 PMCID: PMC11420932 DOI: 10.1097/prs.0000000000005012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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