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Chen R, Deng H, Zou L. Analysis of Bulk Transcriptome Sequencing Data and in vitro Experiments Reveal SIN3A as a Potential Target for Diabetic Foot Ulcer. Diabetes Metab Syndr Obes 2023; 16:4119-4132. [PMID: 38145255 PMCID: PMC10740743 DOI: 10.2147/dmso.s439924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 12/06/2023] [Indexed: 12/26/2023] Open
Abstract
Background Diabetic foot ulcers (DFUs) represent a severe complication of diabetes associated with reduced quality of life, lower limb amputations, hospitalizations, increased incidence, and mortality. Importantly, a significant number of pathogenic genes remain unexplored in DFUs. Methods A series of bioinformatics analyses were performed on publicly available bulk transcriptome sequencing datasets GSE134431 and GSE80178 to explore the transcriptomic changes in DFUs and select core genes for in vitro functional validation. In a focused examination, the differential expression analysis unveiled distinctions in gene expression patterns between DFUs and non-ulcerated diabetic skin tissues. Enriched functional annotations of differentially expressed genes were explored using the DAVID online tool. Protein-protein interaction analysis was conducted to investigate interactions among differentially expressed genes and select core genes. Knockdown or overexpression of core genes in HaCaT keratinocytes was performed to assess their impact on cell proliferation and migration. Results Ten core genes were identified. Cell Counting Kit-8 (CCK-8) and scratch assays demonstrated that downregulation of the core gene SIN3A significantly inhibited the migration and proliferation of HaCaT keratinocytes, while overexpression of SIN3A reversed the high-glucose-induced suppression of HaCaT cell viability and migration. Conclusion SIN3A expression is downregulated in DFUs. In vitro, SIN3A promotes the proliferation and migration of HaCaT keratinocytes, suggesting it may be a potential therapeutic target for DFUs.
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Affiliation(s)
- Ran Chen
- Department of Wound Repair Surgery, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People’s Republic of China
| | - Haibo Deng
- Department of Wound Repair Surgery, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People’s Republic of China
| | - Lijun Zou
- Department of Wound Repair Surgery, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People’s Republic of China
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2
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Wang L, Feng J, Deng Y, Yang Q, Wei Q, Ye D, Rong X, Guo J. CCAAT/Enhancer-Binding Proteins in Fibrosis: Complex Roles Beyond Conventional Understanding. RESEARCH (WASHINGTON, D.C.) 2022; 2022:9891689. [PMID: 36299447 PMCID: PMC9575473 DOI: 10.34133/2022/9891689] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 09/18/2022] [Indexed: 07/29/2023]
Abstract
CCAAT/enhancer-binding proteins (C/EBPs) are a family of at least six identified transcription factors that contain a highly conserved basic leucine zipper domain and interact selectively with duplex DNA to regulate target gene expression. C/EBPs play important roles in various physiological processes, and their abnormal function can lead to various diseases. Recently, accumulating evidence has demonstrated that aberrant C/EBP expression or activity is closely associated with the onset and progression of fibrosis in several organs and tissues. During fibrosis, various C/EBPs can exert distinct functions in the same organ, while the same C/EBP can exert distinct functions in different organs. Modulating C/EBP expression or activity could regulate various molecular processes to alleviate fibrosis in multiple organs; therefore, novel C/EBPs-based therapeutic methods for treating fibrosis have attracted considerable attention. In this review, we will explore the features of C/EBPs and their critical functions in fibrosis in order to highlight new avenues for the development of novel therapies targeting C/EBPs.
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Affiliation(s)
- Lexun Wang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jiaojiao Feng
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yanyue Deng
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Qianqian Yang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Quxing Wei
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Dewei Ye
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xianglu Rong
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jiao Guo
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
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3
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Supramolecular Hydrogel-Wrapped Gingival Mesenchymal Stem Cells in Cutaneous Radiation Injury. Cells 2022; 11:cells11193089. [PMID: 36231051 PMCID: PMC9564043 DOI: 10.3390/cells11193089] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/22/2022] [Accepted: 09/27/2022] [Indexed: 12/12/2022] Open
Abstract
Radiation-induced skin wound/dermatitis is one of the common side effects of radiotherapy or interventional radiobiology. Gingiva-derived mesenchymal stem cells (GMSCs) were indicated to have therapeutic potentials in skin diseases. However, stem cells are prone to spread and difficult to stay in the skin for a long time, limiting their curative effects and application. This study investigated the therapeutic efficacy of Nap-GDFDFpDY (pY-Gel) self-assembled peptide hydrogel-encapsulated GMSCs to treat 137Cs γ-radiation-induced skin wounds in mice. The effects were evaluated by skin damage score, hind limb extension measurement and histological and immunohistochemical analysis. In vivo studies showed that pY-Gel self-assembled peptide hydrogel-encapsulated GMSCs could effectively improve wound healing in irradiated skin tissues. In addition, it was found that GMSCs conditioned medium (CM) could promote the proliferation, migration and DNA damage repair ability of skin cells after irradiation in human keratinocyte cell line HaCaT and normal human dermal fibroblasts (HFF). Mechanistically, GMSCs-CM can promote the expression of epidermal growth factor receptor (EGFR), signal transducers and activators of transcription 3 (STAT3) and matrix metalloproteinases (MMPs), suggesting that activation of the EGFR/STAT3 signaling pathway may be involved in the repair of skin cells after exposure to radiations. In conclusion, pY-Gel self-assembled peptide hydrogel-encapsulated GMSCs have a beneficial therapeutic effect on radiation-induced cutaneous injury and may serve as a basis of novel cells therapeutic approach.
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4
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Renfro Z, White BE, Stephens KE. CCAAT enhancer binding protein gamma (C/EBP-γ): An understudied transcription factor. Adv Biol Regul 2022; 84:100861. [PMID: 35121409 PMCID: PMC9376885 DOI: 10.1016/j.jbior.2022.100861] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/10/2022] [Accepted: 01/24/2022] [Indexed: 05/03/2023]
Abstract
The CCAAT enhancer binding protein (C/EBP) family of transcription factors are important transcriptional mediators of a wide range of physiologic processes. C/EBP-γ is the shortest C/EBP protein and lacks a canonical activation domain for the recruitment of transcriptional machinery. Despite its ubiquitous expression and ability to dimerize with other C/EBP proteins, C/EBP-γ has been studied far less than other C/EBP proteins, and, to our knowledge, no review of its functions has been written. This review seeks to integrate the current knowledge about C/EBP-γ and its physiologic roles, especially in cell proliferation, the integrated stress response, oncogenesis, hematopoietic and nervous system development, and metabolism, as well as to identify areas for future research.
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Affiliation(s)
- Zachary Renfro
- Department of Pediatrics, Division of Infectious Diseases, College of Medicine, University of Arkansas for Medical Sciences, USA; Arkansas Children's Research Institute, 13 Children's Way, Mail slot 512-47, Little Rock, AR, 72202, USA.
| | - Bryan E White
- Department of Pediatrics, Division of Infectious Diseases, College of Medicine, University of Arkansas for Medical Sciences, USA; Arkansas Children's Research Institute, 13 Children's Way, Mail slot 512-47, Little Rock, AR, 72202, USA.
| | - Kimberly E Stephens
- Department of Pediatrics, Division of Infectious Diseases, College of Medicine, University of Arkansas for Medical Sciences, USA; Arkansas Children's Research Institute, 13 Children's Way, Mail slot 512-47, Little Rock, AR, 72202, USA.
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5
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Dubey R, Prabhakar PK, Gupta J. Epigenetics: key to improve delayed wound healing in type 2 diabetes. Mol Cell Biochem 2022; 477:371-383. [PMID: 34739665 DOI: 10.1007/s11010-021-04285-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 10/23/2021] [Indexed: 12/13/2022]
Abstract
Diabetes-related delayed wound healing is a multifactorial, nuanced, and intertwined complication that causes substantial clinical morbidity. The etiology of diabetes and its related microvascular complications is affected by genes, diet, and lifestyle factors. Epigenetic modifications such as DNA methylation, histone modifications, and post-transcriptional RNA regulation (microRNAs) are subsequently recognized as key facilitators of the complicated interaction between genes and the environment. Current research suggests that diabetes-persuaded dysfunction of epigenetic pathways, which results in changed expression of genes in target cells and cause diabetes-related complications including cardiomyopathy, nephropathy, retinopathy, delayed wound healing, etc., which are foremost drivers to diabetes-related adverse outcomes. In this paper, we discuss the role of epigenetic mechanisms in controlling tissue repair, angiogenesis, and expression of growth factors, as well as recent findings that show the alteration of epigenetic events during diabetic wound healing.
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Affiliation(s)
- Rupal Dubey
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University (LPU), Jalandhar-Delhi G.T. Road, 144411, Phagwara, Punjab, India
| | - Pranav Kumar Prabhakar
- Department of Medical Laboratory Sciences, School of Physiotherapy and Paramedical Sciences, Lovely Professional University, 144411, Phagwara, Punjab, India
| | - Jeena Gupta
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University (LPU), Jalandhar-Delhi G.T. Road, 144411, Phagwara, Punjab, India.
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6
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Lu CW, Wang TY, Yen CF, Chen KH, Wu CE, Wang CL, Hsu PC, Fang YF, Li SH, Ko HW, Tseng LC, Shih FY, Lin YJ, Chen MJ, Chen CB, Su Pang JH, Chung WH, Ko YS. Using betaxolol for the prevention of paronychia induced by epidermal growth factor receptor inhibitors: a case-control cohort study. Int J Dermatol 2020; 60:179-184. [PMID: 32975313 DOI: 10.1111/ijd.15099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 06/03/2020] [Accepted: 07/14/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND High rates of posttreatment discomfort, infection, recurrence, and increased time to return to work have been noted after nail plate avulsion resulting from epidermal growth factor receptor tyrosine kinase inhibitor(EGFR-TKI)-induced paronychia, which may even interrupt the course of treatment for EGFR-TKI therapy. Thus, we conducted this study to determine how effectively a topical β-blocker, betaxolol, prevents EGFR-TKI-induced paronychia. METHODS This case-control cohort study included a total of 131 non-small-cell lung cancer patients. The prevention group comprised 40 patients treated with topical betaxolol 0.25% solution to prevent paronychia while they received EGFR-TKI therapy. The control group comprised 91 patients who did not preventively use topical betaxolol 0.25% solution while receiving EGFR-TKI therapy. The patients' age, gender, antineoplastic regimen, duration of antineoplastic treatment before the appearance of lesions, number of involved digits (fingernails or toenails) with lesions, grading of paronychia, and pain score were recorded. RESULTS In terms of the cumulative incidence of paronychia, significant differences (P < 0.01) were noted at both the 2nd and 3rd months after starting EGFR-TKIs. Furthermore, the average visual analogue scale scores were 3.125 and 6.29 in the prevention group and control group, respectively (P < 0.01). The average grades of paronychia were 1.5 and 2.12 in the prevention group and control group, respectively (P < 0.01). The average numbers of involved digits were 2.25 (range: 1-5 digits) in the prevention group and 3.03 (range: 1-7) in the control group (P = 0.07). CONCLUSIONS Preventively using topical betaxolol can significantly decrease the incidence, VAS score, and grading of EGFR-TKI-induced paronychia.
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Affiliation(s)
- Chun-Wei Lu
- Department of Dermatology, Drug Hypersensitivity Clinical and Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Ting-Ya Wang
- Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chi-Feng Yen
- Department of Dermatology, Drug Hypersensitivity Clinical and Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Kang-Hua Chen
- School of Nursing, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Department of Nursing, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chiao-En Wu
- Division of Hematology-Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital at Linkou, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Chih-Liang Wang
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan.,Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Ping-Chih Hsu
- College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Division of Thoracic Medicine, Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Yueh-Fu Fang
- College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Division of Thoracic Medicine, Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Shih-Hong Li
- Division of Thoracic Medicine, Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - How-Wen Ko
- College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Division of Thoracic Medicine, Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Li-Chuan Tseng
- Department of Oncology Case Management, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Feng-Ya Shih
- Department of Oncology Case Management, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Yu-Jr Lin
- Research Services Center for Health Information, Chang Gung University, Taoyuan, Taiwan
| | - Mei-Jun Chen
- Department of Dermatology, Drug Hypersensitivity Clinical and Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chun-Bing Chen
- Department of Dermatology, Drug Hypersensitivity Clinical and Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Jong-Hwei Su Pang
- Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan.,Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Wen-Hung Chung
- Department of Dermatology, Drug Hypersensitivity Clinical and Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yu-Shien Ko
- College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan.,Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
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7
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Wang A, Toma MA, Ma J, Li D, Vij M, Chu T, Wang J, Li X, Xu Landén N. Circular RNA hsa_circ_0084443 Is Upregulated in Diabetic Foot Ulcer and Modulates Keratinocyte Migration and Proliferation. Adv Wound Care (New Rochelle) 2020; 9:145-160. [PMID: 32117579 DOI: 10.1089/wound.2019.0956] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 07/12/2019] [Indexed: 12/15/2022] Open
Abstract
Objective: Insufficient knowledge about the molecular pathology of diabetic foot ulcer (DFU) impedes the development of effective wound treatment. Circular RNAs (circRNAs) are a novel class of RNA recently discovered to be widely expressed and have important biological functions; however, their role in skin wound healing remains largely unexplored. In this study, we investigated the role of circRNAs in DFU. Approach: CircRNA expression was profiled in normal wounds (NWs) and DFUs by microarray analysis, and hsa_circ_0084443 was identified as differentially expressed. The circularity and subcellular localization of hsa_circ_0084443 were characterized by northern blotting, real-time PCR, and fluorescence in situ hybridization. Cell migration, cell growth, and the transcriptome of human primary keratinocytes were analyzed after overexpression or RNA interference of hsa_circ_0084443. Results: hsa_circ_0084443 is downregulated in NWs compared with intact skin, and its level is higher in DFUs than NWs. We confirmed its circularity and presence in the cytoplasm of human epidermal keratinocytes. We showed that hsa_circ_0084443 reduced motility while enhancing the growth of keratinocytes. Furthermore, we identified a gene network with the potential to mediate the biological effect of hsa_circ_0084443. Innovation: CircRNAs have a functional role and a potential clinical significance in skin wound healing. Conclusions: We identified hsa_circ_0084443, a circRNA downregulated during NW healing, as a negative regulator of keratinocyte migration. Higher levels of hsa_circ_0084443 were detected in DFU samples, suggesting that it plays a role in pathology. These findings pave the way to understanding the functional role of circRNAs in human skin wound healing.
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Affiliation(s)
- Aoxue Wang
- Department of Dermatology, The Second Hospital of Dalian Medical University, College of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Maria A. Toma
- Dermatology and Venereology Unit, Department of Medicine (Solna), Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Jingxin Ma
- Department of Cell Biology, Dalian Medical University, Dalian, China
| | - Dongqing Li
- Dermatology and Venereology Unit, Department of Medicine (Solna), Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Manika Vij
- Dermatology and Venereology Unit, Department of Medicine (Solna), Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Tongbin Chu
- Department of Wound Regeneration, The Second Hospital of Dalian Medical University, Dalian, China
| | - Jing Wang
- Department of Dermatology, The Second Hospital of Dalian Medical University, College of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Xi Li
- Dermatology and Venereology Unit, Department of Medicine (Solna), Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ning Xu Landén
- Dermatology and Venereology Unit, Department of Medicine (Solna), Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Ming Wai Lau Centre for Reparative Medicine, Stockholm Node, Karolinska Institutet, Stockholm, Sweden
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8
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The HIPPO Transducer YAP and Its Targets CTGF and Cyr61 Drive a Paracrine Signalling in Cold Atmospheric Plasma-Mediated Wound Healing. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:4910280. [PMID: 32104533 PMCID: PMC7040405 DOI: 10.1155/2020/4910280] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 01/27/2020] [Accepted: 01/29/2020] [Indexed: 12/15/2022]
Abstract
Reactive species play a pivotal role in orchestrating wound healing responses. They act as secondary messengers and drive redox-signalling pathways that are involved in the homeostatic, inflammatory, proliferative, and remodelling phases of wound healing. The application of Cold Atmospheric Plasma (CAP) to the wound site produces a profusion of short- and long-lived reactive species that have been demonstrated to be effective in promoting wound healing; however, knowledge of the mechanisms underlying CAP-mediated wound healing remains scarce. To address this, an in vitro coculture model was used to study the effects of CAP on wound healing and on paracrine crosstalk between dermal keratinocytes and fibroblasts. Using this coculture model, we observed a stimulatory effect on the migration ability of HaCaT cells that were cocultured with dermal fibroblasts. Additionally, CAP treatment resulted in an upregulation of the HIPPO transcription factor YAP in HaCaTs and fibroblasts. Downstream effectors of the HIPPO signalling pathway (CTGF and Cyr61) were also upregulated in dermal fibroblasts, and the administration of antioxidants could inhibit CAP-mediated wound healing and abrogate the gene expression of the HIPPO downstream effectors. Interestingly, we observed that HaCaT cells exhibited an improved cell migration rate when incubated with CAP-treated fibroblast-conditioned media compared to that observed after incubation with untreated media. An induction of CTGF and Cyr61 secretion was also observed upon CAP treatment in the fibroblast-conditioned media. Finally, exposure to recombinant CTGF and Cyr61 could also significantly improve HaCaT cell migration. In summary, our results validated that CAP activates a regenerative signalling pathway at the onset of wound healing. Additionally, CAP also stimulated a reciprocal communication between dermal fibroblasts and keratinocytes, resulting in improved keratinocyte wound healing in coculture.
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Activator Protein-1 Transcriptional Activity Drives Soluble Micrograft-Mediated Cell Migration and Promotes the Matrix Remodeling Machinery. Stem Cells Int 2019; 2019:6461580. [PMID: 32082384 PMCID: PMC7012246 DOI: 10.1155/2019/6461580] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 10/23/2019] [Accepted: 11/16/2019] [Indexed: 12/14/2022] Open
Abstract
Impaired wound healing and tissue regeneration have severe consequences on the patient's quality of life. Micrograft therapies are emerging as promising and affordable alternatives to improve skin regeneration by enhancing the endogenous wound repair processes. However, the molecular mechanisms underpinning the beneficial effects of the micrograft treatments remain largely unknown. In this study, we identified the active protein-1 (AP-1) member Fos-related antigen-1 (Fra-1) to play a central role in the extracellular signal-regulated kinase- (ERK-) mediated enhanced cell migratory capacity of soluble micrograft-treated mouse adult fibroblasts and in the human keratinocyte cell model. Accordingly, we show that increased micrograft-dependent in vitro cell migration and matrix metalloprotease activity is abolished upon inhibition of AP-1. Furthermore, soluble micrograft treatment leads to increased expression and posttranslational phosphorylation of Fra-1 and c-Jun, resulting in the upregulation of wound healing-associated genes mainly involved in the regulation of cell migration. Collectively, our work provides insights into the molecular mechanisms behind the cell-free micrograft treatment, which might contribute to future advances in wound repair therapies.
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10
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Yen C, Hsu C, Yang H, Lee C, Chi C, Chung W, Wang C, Pang JS, Wang C, Ko Y, Lu C. Treatment of epidermal growth factor receptor inhibitor‐induced severe paronychia with pyogenic granuloma‐like lesions with topical betaxolol: an open‐label observation study. Int J Dermatol 2019; 59:326-332. [DOI: 10.1111/ijd.14730] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 07/30/2019] [Accepted: 10/31/2019] [Indexed: 11/29/2022]
Affiliation(s)
- Chi‐Feng Yen
- Department of Dermatology Drug Hypersensitivity Clinical and Research Center Chang Gung Memorial Hospital Taoyuan Taiwan
- College of Medicine Chang Gung University Taoyuan Taiwan
| | - Chao‐Kai Hsu
- Department of Dermatology National Cheng Kung University Hospital College of Medicine National Cheng Kung University Tainan Taiwan
- International Research Center of Wound Repair and Regeneration (iWRR) National Cheng Kung University Tainan Taiwan
| | - Hsing‐San Yang
- Department of Dermatology National Cheng Kung University Hospital College of Medicine National Cheng Kung University Tainan Taiwan
| | - Chaw‐Ning Lee
- Department of Dermatology National Cheng Kung University Hospital College of Medicine National Cheng Kung University Tainan Taiwan
| | - Ching‐Chi Chi
- Department of Dermatology Drug Hypersensitivity Clinical and Research Center Chang Gung Memorial Hospital Taoyuan Taiwan
- College of Medicine Chang Gung University Taoyuan Taiwan
| | - Wen‐Hung Chung
- Department of Dermatology Drug Hypersensitivity Clinical and Research Center Chang Gung Memorial Hospital Taoyuan Taiwan
- College of Medicine Chang Gung University Taoyuan Taiwan
| | - Chih‐Liang Wang
- Division of Pulmonary Oncology and Interventional Bronchoscopy Department of Thoracic Medicine Chang Gung Memorial Hospital Taoyuan Taiwan
| | - Jong‐Hwei Su Pang
- Graduate Institute of Clinical Medical Sciences Chang Gung University Taoyuan Taiwan
- Department of Physical Medicine and Rehabilitation Chang Gung Memorial Hospital Taoyuan Taiwan
| | - Chuang‐Wei Wang
- Department of Dermatology Drug Hypersensitivity Clinical and Research Center Chang Gung Memorial Hospital Taoyuan Taiwan
- College of Medicine Chang Gung University Taoyuan Taiwan
| | - Yu‐Shien Ko
- Cardiovascular Division Microscope Core Laboratory Chang Gung Memorial Hospital Taoyuan Taiwan
| | - Chun‐Wei Lu
- Department of Dermatology Drug Hypersensitivity Clinical and Research Center Chang Gung Memorial Hospital Taoyuan Taiwan
- College of Medicine Chang Gung University Taoyuan Taiwan
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11
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den Dekker A, Davis FM, Kunkel SL, Gallagher KA. Targeting epigenetic mechanisms in diabetic wound healing. Transl Res 2019; 204:39-50. [PMID: 30392877 PMCID: PMC6331222 DOI: 10.1016/j.trsl.2018.10.001] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 10/02/2018] [Accepted: 10/02/2018] [Indexed: 02/07/2023]
Abstract
Impaired wound healing is a major secondary complication of type 2 diabetes that often results in limb loss and disability. Normal tissue repair progresses through discrete phases including hemostasis, inflammation, proliferation, and remodeling. In diabetes, normal progression through these phases is impaired resulting in a sustained inflammatory state and dysfunctional epithelialization in the wound. Due to their plasticity, macrophages play a critical role in the transition from the inflammation phase to the proliferation phase. Diabetes disrupts macrophage function by impairing monocyte recruitment to the wound, reducing phagocytosis, and prohibiting the transition of inflammatory macrophages to an anti-inflammatory state. Diabetes also impedes keratinocyte and fibroblast function during the later phases resulting in impaired epithelialization of the wound. Several recent studies suggest that altered epigenetic regulation of both immune and structural cells in wounds may influence cell phenotypes and healing, particularly in pathologic states, such as diabetes. Specifically, it has been shown that macrophage plasticity during wound repair is partly regulated epigenetically and that diabetes alters this epigenetic regulation and contributes to a sustained inflammatory state. Epigenetic regulation is also known to regulate keratinocyte and fibroblast function during wound repair. In this review, we provide an introduction to the epigenetic mechanisms that regulate tissue repair and highlight recent findings that demonstrate, how epigenetic events are altered during the course of diabetic wound healing.
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Affiliation(s)
- Aaron den Dekker
- Department of Surgery, University of Michigan, Ann Arbor, Michgan
| | - Frank M Davis
- Department of Surgery, University of Michigan, Ann Arbor, Michgan
| | - Steve L Kunkel
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
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Ruan Z, Yang X, Cheng W. OCT4 accelerates tumorigenesis through activating JAK/STAT signaling in ovarian cancer side population cells. Cancer Manag Res 2018; 11:389-399. [PMID: 30643464 PMCID: PMC6314052 DOI: 10.2147/cmar.s180418] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Although surgery, chemotherapy, and radiotherapy eliminate clinically apparent ovarian tumor, the 5-year survival rate is no more than 45%. Cancer stem cells (CSCs) have been identified for precaution of tumor metastasis and recurrence in many kinds of cancers including ovarian cancer. AIM This study aims to explore the function of OCT4, a CSC marker, in ovarian cancer progression and to investigate its underlying mechanism. MATERIALS AND METHODS By Hoechst side population (SP) technique, CSC-like SP cells from human ovarian cancer SKOV3 and A2780 cells were isolated and used for this study. shRNA and lentivirus targeting human OCT4 gene were used to knock down OCT4 in SP cells and upregulate OCT4 in non-SP (NSP) cells stably. Peficitinib was used to inhibit JAK/STAT signaling. Cell counting kit-8, flow cytometry, and in vivo xenograft model were used to evaluate the effects of OCT4/JAK/STAT on the viability, drug resistance, apoptosis, cycle, and tumorigenesis of the SP cells. Immunofluorescence staining was used to detect the location of STAT6. RESULTS Results showed that OCT4 was upregulated in the SP of SKOV3 and A2780 cells when compared with the NSP cells. Downregulation of OCT4 inhibited SP cell viability, tumorigenesis, and reduced cell drug resistance and induced a G2/M phase arrest, while upregulation of OCT4 conferred NSP cell malignant features. Besides, OCT4 upregulation in NSP cells increased the phosphorylated levels of proteins in JAK and STAT families, especially in JAK1 and STAT6. Furthermore, the roles of apoptosis inhibition and viability, invasion, and tumorigenesis promotions induced by OCT4 in NSP cells were all abolished when adding peficitinib. CONCLUSION Our study demonstrated that OCT4 accelerated ovarian cancer progression through activating JAK/STAT signaling pathway.
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Affiliation(s)
- Zhengyi Ruan
- Department of Obstetrics and Gynaecology, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China,
| | - Xingyu Yang
- Department of Obstetrics and Gynaecology, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China,
| | - Weiwei Cheng
- Department of Obstetrics and Gynaecology, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China,
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Yen CF, Lee YY. Nail braces for severe paronychia induced by epidermal growth factor receptor inhibitors: An alternative to nail extraction. J Am Acad Dermatol 2018; 78:e89-e90. [DOI: 10.1016/j.jaad.2017.09.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 09/19/2017] [Accepted: 09/27/2017] [Indexed: 11/25/2022]
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15
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Fernández JR, Webb C, Rouzard K, Voronkov M, Huber KL, Stock JB, Stock M, Gordon JS, Perez E. N-Acetylglutaminoyl-S-farnesyl-L-cysteine (SIG-1191): an anti-inflammatory molecule that increases the expression of the aquaglyceroporin, aquaporin-3, in human keratinocytes. Arch Dermatol Res 2017; 309:103-110. [PMID: 27988893 PMCID: PMC5309294 DOI: 10.1007/s00403-016-1708-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 12/05/2016] [Accepted: 12/08/2016] [Indexed: 01/01/2023]
Abstract
Isoprenylcysteine (IPC) small molecules were discovered as signal transduction modulating compounds ~25 years ago. More recently, IPC molecules have demonstrated antioxidant and anti-inflammatory properties in a variety of dermal cells as well as antimicrobial activity, representing a novel class of compounds to ameliorate skin conditions and disease. Here, we demonstrate a new IPC compound, N-acetylglutaminoyl-S-farnesyl-L-cysteine (SIG-1191), which inhibits UVB-induced inflammation blocking pro-inflammatory cytokine interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF-α) production. To investigate further the previously reported hydrating potential of IPC compounds, SIG-1191 was tested for its ability to modulate aquaporin expression. Specifically, aquaporin 3 (AQP3) the most abundant aquaporin found in skin has been reported to play a key role in skin hydration, elasticity and barrier repair. Results show here for the first time that SIG-1191 increases AQP3 expression in both cultured normal human epidermal keratinocytes as well as when applied topically in a three-dimensional (3D) reconstructed human skin equivalent. Additionally, SIG-1191 dose dependently increased AQP3 protein levels, as determined by specific antibody staining, in the epidermis of the 3D skin equivalents. To begin to elucidate which signaling pathways SIG-1191 may be modulating to increase AQP3 levels, we used several pharmacological pathway inhibitors and determined that AQP3 expression is mediated by the Mitogen-activated protein kinase/Extracellular signal-regulated kinase kinase (MEK) pathway. Altogether, these data suggest SIG-1191 represents a new IPC derivative with anti-inflammatory activity that may also promote increased skin hydration based on its ability to increase AQP3 levels.
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Affiliation(s)
| | - Corey Webb
- Signum Dermalogix, 133 Wall Street, Princeton, NJ, 08540, USA
| | - Karl Rouzard
- Signum Dermalogix, 133 Wall Street, Princeton, NJ, 08540, USA
| | | | - Kristen L Huber
- Signum Dermalogix, 133 Wall Street, Princeton, NJ, 08540, USA
| | - Jeffry B Stock
- Signum Dermalogix, 133 Wall Street, Princeton, NJ, 08540, USA
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | - Maxwell Stock
- Signum Dermalogix, 133 Wall Street, Princeton, NJ, 08540, USA
| | - Joel S Gordon
- Signum Dermalogix, 133 Wall Street, Princeton, NJ, 08540, USA
| | - Eduardo Perez
- Signum Dermalogix, 133 Wall Street, Princeton, NJ, 08540, USA.
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16
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Abstract
Heroin addiction is a complex psychiatric disorder with a chronic course and a high relapse rate, which results from the interaction between genetic and environmental factors. Heroin addiction has a substantial heritability in its etiology; hence, identification of individuals with a high genetic propensity to heroin addiction may help prevent the occurrence and relapse of heroin addiction and its complications. The study aimed to identify a small set of genetic signatures that may reliably predict the individuals with a high genetic propensity to heroin addiction. We first measured the transcript level of 13 genes (RASA1, PRKCB, PDK1, JUN, CEBPG, CD74, CEBPB, AUTS2, ENO2, IMPDH2, HAT1, MBD1, and RGS3) in lymphoblastoid cell lines in a sample of 124 male heroin addicts and 124 male control subjects using real-time quantitative PCR. Seven genes (PRKCB, PDK1, JUN, CEBPG, CEBPB, ENO2, and HAT1) showed significant differential expression between the 2 groups. Further analysis using 3 statistical methods including logistic regression analysis, support vector machine learning analysis, and a computer software BIASLESS revealed that a set of 4 genes (JUN, CEBPB, PRKCB, ENO2, or CEBPG) could predict the diagnosis of heroin addiction with the accuracy rate around 85% in our dataset. Our findings support the idea that it is possible to identify genetic signatures of heroin addiction using a small set of expressed genes. However, the study can only be considered as a proof-of-concept study. As the establishment of lymphoblastoid cell line is a laborious and lengthy process, it would be more practical in clinical settings to identify genetic signatures for heroin addiction directly from peripheral blood cells in the future study.
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Affiliation(s)
- Shaw-Ji Chen
- Institute of Medical Sciences, Tzu Chi University, Hualien
- Department of Psychiatry, Mackay Memorial Hospital, Taitung Branch
| | - Ding-Lieh Liao
- Department of Health Executive Yuan, Bali Psychiatric Center
| | - Tsu-Wang Shen
- Institute of Medical Sciences, Tzu Chi University, Hualien
| | - Hsin-Chou Yang
- Institute of Statistical Science, Academia Sinica, Taipei
| | - Kuang-Chi Chen
- Institute of Medical Sciences, Tzu Chi University, Hualien
| | - Chia-Hsiang Chen
- Department of Psychiatry, Chang Gung Memorial Hospital at Linkou
- Department and Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
- Correspondence: Chia-Hsiang Chen, Department of Psychiatry, Chang Gung Memorial Hospital at Linkou, No. 5 Fusing Street, Kueishan, Taoyuan, 333 Taiwan (e-mail: )
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Identification of Novel Regulators of the JAK/STAT Signaling Pathway that Control Border Cell Migration in the Drosophila Ovary. G3-GENES GENOMES GENETICS 2016; 6:1991-2002. [PMID: 27175018 PMCID: PMC4938652 DOI: 10.1534/g3.116.028100] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The Janus Kinase/Signal Transducer and Activator of Transcription (JAK/STAT) signaling pathway is an essential regulator of cell migration both in mammals and fruit flies. Cell migration is required for normal embryonic development and immune response but can also lead to detrimental outcomes, such as tumor metastasis. A cluster of cells termed “border cells” in the Drosophila ovary provides an excellent example of a collective cell migration, in which two different cell types coordinate their movements. Border cells arise within the follicular epithelium and are required to invade the neighboring cells and migrate to the oocyte to contribute to a fertilizable egg. Multiple components of the STAT signaling pathway are required during border cell specification and migration; however, the functions and identities of other potential regulators of the pathway during these processes are not yet known. To find new components of the pathway that govern cell invasiveness, we knocked down 48 predicted STAT modulators using RNAi expression in follicle cells, and assayed defective cell movement. We have shown that seven of these regulators are involved in either border cell specification or migration. Examination of the epistatic relationship between candidate genes and Stat92E reveals that the products of two genes, Protein tyrosine phosphatase 61F (Ptp61F) and brahma (brm), interact with Stat92E during both border cell specification and migration.
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Na J, Lee K, Na W, Shin JY, Lee MJ, Yune TY, Lee HK, Jung HS, Kim WS, Ju BG. Histone H3K27 Demethylase JMJD3 in Cooperation with NF-κB Regulates Keratinocyte Wound Healing. J Invest Dermatol 2016; 136:847-858. [DOI: 10.1016/j.jid.2015.11.029] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 11/17/2015] [Accepted: 11/30/2015] [Indexed: 01/07/2023]
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19
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Lorenz VN, Schön MP, Seitz CS. The c-Rel subunit of NF-κB is a crucial regulator of phenotype and motility of HaCaT keratinocytes. Arch Dermatol Res 2015; 307:523-30. [DOI: 10.1007/s00403-015-1562-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 03/04/2015] [Accepted: 03/24/2015] [Indexed: 01/16/2023]
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20
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Molecular signatures in the prevention of radiation damage by the synergistic effect of N-acetyl cysteine and qingre liyan decoction, a traditional chinese medicine, using a 3-dimensional cell culture model of oral mucositis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:425760. [PMID: 25705238 PMCID: PMC4326035 DOI: 10.1155/2015/425760] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 12/24/2014] [Indexed: 02/03/2023]
Abstract
Qingre Liyan decoction (QYD), a Traditional Chinese medicine, and N-acetyl cysteine (NAC) have been used to prevent radiation induced mucositis. This work evaluates the protective mechanisms of QYD, NAC, and their combination (NAC-QYD) at the cellular and transcriptional level. A validated organotypic model of oral mucosal consisting of a three-dimensional (3D) cell tissue-culture of primary human keratinocytes exposed to X-ray irradiation was used. Six hours after the irradiation, the tissues were evaluated by hematoxylin and eosin (H and E) and a TUNEL assay to assess histopathology and apoptosis, respectively. Total RNA was extracted and used for microarray gene expression profiling. The tissue-cultures treated with NAC-QYD preserved their integrity and showed no apoptosis. Microarray results revealed that the NAC-QYD caused the upregulation of genes encoding metallothioneins, HMOX1, and other components of the Nrf2 pathway, which protects against oxidative stress. DNA repair genes (XCP, GADD45G, RAD9, and XRCC1), protective genes (EGFR and PPARD), and genes of the NFκB pathway were upregulated. Finally, tissue-cultures treated prophylactically with NAC-QYD showed significant downregulation of apoptosis, cytokines and chemokines genes, and constrained damage-associated molecular patterns (DAMPs). NAC-QYD treatment involves the protective effect of Nrf2, NFκB, and DNA repair factors.
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Acute Wounding Alters the Beta2-Adrenergic Signaling and Catecholamine Synthetic Pathways in Keratinocytes. J Invest Dermatol 2014; 134:2258-2266. [DOI: 10.1038/jid.2014.137] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 02/05/2014] [Accepted: 02/05/2014] [Indexed: 01/01/2023]
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22
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Bellavia G, Fasanaro P, Melchionna R, Capogrossi MC, Napolitano M. Transcriptional control of skin reepithelialization. J Dermatol Sci 2014; 73:3-9. [DOI: 10.1016/j.jdermsci.2013.08.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 08/20/2013] [Accepted: 08/21/2013] [Indexed: 11/16/2022]
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23
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Chiara Barsotti M, Losi P, Briganti E, Sanguinetti E, Magera A, Al Kayal T, Feriani R, Di Stefano R, Soldani G. Effect of platelet lysate on human cells involved in different phases of wound healing. PLoS One 2013; 8:e84753. [PMID: 24386412 PMCID: PMC3873992 DOI: 10.1371/journal.pone.0084753] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Accepted: 11/19/2013] [Indexed: 12/28/2022] Open
Abstract
Background Platelets are rich in mediators able to positively affect cell activity in wound healing. Aim of this study was to characterize the effect of different concentrations of human pooled allogeneic platelet lysate on human cells involved in the different phases of wound healing (inflammatory phase, angiogenesis, extracellular matrix secretion and epithelialization). Methodology/Principal Findings Platelet lysate effect was studied on endothelial cells, monocytes, fibroblasts and keratinocytes, in terms of viability and proliferation, migration, angiogenesis, tissue repair pathway activation (ERK1/2) and inflammatory response evaluation (NFκB). Results were compared both with basal medium and with a positive control containing serum and growth factors. Platelet lysate induced viability and proliferation at the highest concentrations tested (10% and 20% v/v). Whereas both platelet lysate concentrations increased cell migration, only 20% platelet lysate was able to significantly promote angiogenic activity (p<0.05 vs. control), comparably to the positive control. Both platelet lysate concentrations activated important inflammatory pathways such as ERK1/2 and NFκB with the same early kinetics, whereas the effect was different for later time-points. Conclusion/Significance These data suggest the possibility of using allogeneic platelet lysate as both an alternative to growth factors commonly used for cell culture and as a tool for clinical regenerative application for wound healing.
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Affiliation(s)
- Maria Chiara Barsotti
- Department of Surgery, Medical, Molecular, and Critical Area Pathology, University of Pisa, Pisa, Italy
- * E-mail:
| | - Paola Losi
- Institute of Clinical Physiology, National Research Council, Massa, Italy
| | - Enrica Briganti
- Institute of Clinical Physiology, National Research Council, Massa, Italy
| | - Elena Sanguinetti
- Institute of Clinical Physiology, National Research Council, Massa, Italy
| | | | - Tamer Al Kayal
- Institute of Clinical Physiology, National Research Council, Massa, Italy
| | - Roberto Feriani
- Department of Surgery, Medical, Molecular, and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - Rossella Di Stefano
- Department of Surgery, Medical, Molecular, and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - Giorgio Soldani
- Institute of Clinical Physiology, National Research Council, Massa, Italy
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Trowbridge RM, Mitkov MV, Hunter WJ, Agrawal DK. Vitamin D receptor and CD86 expression in the skin of vitamin D-deficient swine. Exp Mol Pathol 2013; 96:42-7. [PMID: 24239751 DOI: 10.1016/j.yexmp.2013.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Accepted: 11/06/2013] [Indexed: 12/31/2022]
Abstract
The immunomodulatory role of vitamin D in many diseases is well established. However, the relationship between vitamin D status and skin cancers is unclear. In this study, we examined the effect of vitamin D deficiency and sufficiency on VDR, NF-κB, and CD86 in the epidermis of Yucatan microswine tragi. All of these proteins have known roles in the pathogenesis of cutaneous malignancies such as melanoma and non-melanoma skin cancer. There was weaker and less discrete nuclear staining for VDR and weaker CD86 immunoreactivity with patchy membranous expression in the epidermis of vitamin D-deficient compared to vitamin D-sufficient swine. There was no difference in the immunostaining for NF-κB. Since VDR and CD86 expression are decreased in the setting of melanoma and non-melanoma skin cancers, our findings suggest a potential role of vitamin D-deficiency in the progression of skin malignancies.
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Affiliation(s)
- Ryan M Trowbridge
- Center for Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE, USA
| | - Mario V Mitkov
- Center for Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE, USA
| | - William J Hunter
- Center for Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE, USA
| | - Devendra K Agrawal
- Center for Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE, USA.
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Eghtesad S, Nurminskaya MV. Binding of pro-migratory serum factors to electrospun PLLA nano-fibers. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2013; 24:2006-17. [PMID: 23905695 DOI: 10.1080/09205063.2013.818915] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Architecture of the poly(l-lactic acid) (PLLA) scaffolds is known to affect protein affinity and binding strength. Here, we demonstrate that nanofibrous electrospun PLLA scaffolds reversibly absorb the pro-migratory serum factors that stimulate migration of vascular smooth muscle via an NFkB-dependent mechanism. Further, we demonstrate that mesenchymal stem cells seeded on the PLLA scaffolds do not enhance muscle migration but may maintain the ability of induced cells to migrate in an NFkB-independent manner. These findings further support the promising application of PLLA scaffolds for therapeutic angiogenesis and vascular graft engineering.
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Affiliation(s)
- Saman Eghtesad
- a Department of Biochemistry and Molecular Biology , University of Maryland School of Medicine , 108 N Greene St, BRF 329, Baltimore , MD , 21201 , USA
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Spallotta F, Cencioni C, Straino S, Sbardella G, Castellano S, Capogrossi MC, Martelli F, Gaetano C. Enhancement of lysine acetylation accelerates wound repair. Commun Integr Biol 2013; 6:e25466. [PMID: 24265859 PMCID: PMC3829946 DOI: 10.4161/cib.25466] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 06/19/2013] [Accepted: 06/19/2013] [Indexed: 12/30/2022] Open
Abstract
In physiopathological conditions, such as diabetes, wound healing is significantly compromised and chronic complications, including ulcers, may occur. In a mouse model of skin repair, we recently reported that wound treatment with Sirtuin activators and class I HDAC inhibitors induced keratinocyte proliferation and enhanced healing via a nitric oxide (NO) dependent mechanism. We observed an increase in total protein acetylation in the wound area, as determined by acetylation of α-tubulin and histone H3 Lysine 9. We reasoned that this process activated cell function as well as regulated gene expression to foster tissue repair. We report here that the direct activation of P300/CBP-associated factor (PCAF) by the histone acetylase activator pentadecylidenemalonate 1b (SPV-106) induced Lysine acetylation in the wound area. This intervention was sufficient to enhance repair process by a NO-independent mechanism. Hence, an impairment of PCAF and/or other GCN5 family acetylases may delay skin repair in physiopathological conditions.
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Affiliation(s)
- Francesco Spallotta
- Laboratorio di Biologia Vascolare e Medicina Rigenerativa; Centro Cardiologico Monzino; IRCCS; Milan, Italy
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Schmidt A, Wende K, Bekeschus S, Bundscherer L, Barton A, Ottmüller K, Weltmann KD, Masur K. Non-thermal plasma treatment is associated with changes in transcriptome of human epithelial skin cells. Free Radic Res 2013; 47:577-92. [DOI: 10.3109/10715762.2013.804623] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Sparks ME, Blackburn MB, Kuhar D, Gundersen-Rindal DE. Transcriptome of the Lymantria dispar (gypsy moth) larval midgut in response to infection by Bacillus thuringiensis. PLoS One 2013; 8:e61190. [PMID: 23658687 PMCID: PMC3641027 DOI: 10.1371/journal.pone.0061190] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Accepted: 03/07/2013] [Indexed: 11/23/2022] Open
Abstract
Transcriptomic profiles of the serious lepidopteran insect pest Lymantria dispar (gypsy moth) were characterized in the larval midgut in response to infection by Bacillus thuringiensis kurstaki, a biopesticide commonly used for its control. RNA-Seq approaches were used to define a set of 49,613 assembled transcript sequences, of which 838, 1,248 and 3,305 were respectively partitioned into high-, mid- and low-quality tiers on the basis of homology information. Digital gene expression profiles suggested genes differentially expressed at 24 hours post infection, and qRT-PCR analyses were performed for verification. The differentially expressed genes primarily associated with digestive function, including α-amylase, lipase and carboxypeptidase; immune response, including C-type lectin 4; developmental genes such as arylphorin; as well as a variety of binding proteins: cellular retinoic acid binding protein (lipid-binding), insulin-related peptide binding protein (protein-binding) and ovary C/EBPg transcription factor (nucleic acid-binding). This is the first study conducted to specifically investigate gypsy moth response to a bacterial infection challenge using large-scale sequencing technologies, and the results highlight important genes that could be involved in biopesticide resistance development or could serve as targets for biologically-based control mechanisms of this insect pest.
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Affiliation(s)
- Michael E. Sparks
- United States Department of Agriculture -ARS Invasive Insect Biocontrol and Behavior Laboratory, Beltsville, Maryland, United States of America
| | - Michael B. Blackburn
- United States Department of Agriculture -ARS Invasive Insect Biocontrol and Behavior Laboratory, Beltsville, Maryland, United States of America
| | - Daniel Kuhar
- United States Department of Agriculture -ARS Invasive Insect Biocontrol and Behavior Laboratory, Beltsville, Maryland, United States of America
| | - Dawn E. Gundersen-Rindal
- United States Department of Agriculture -ARS Invasive Insect Biocontrol and Behavior Laboratory, Beltsville, Maryland, United States of America
- * E-mail:
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Fullard N, Moles A, O'Reilly S, van Laar JM, Faini D, Diboll J, Reynolds NJ, Mann DA, Reichelt J, Oakley F. The c-Rel subunit of NF-κB regulates epidermal homeostasis and promotes skin fibrosis in mice. THE AMERICAN JOURNAL OF PATHOLOGY 2013; 182:2109-20. [PMID: 23562440 DOI: 10.1016/j.ajpath.2013.02.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 02/11/2013] [Accepted: 02/12/2013] [Indexed: 10/27/2022]
Abstract
The five subunits of transcription factor NF-κB have distinct biological functions. NF-κB signaling is important for skin homeostasis and aging, but the contribution of individual subunits to normal skin biology and disease is unclear. Immunohistochemical analysis of the p50 and c-Rel subunits within lesional psoriatic and systemic sclerosis skin revealed abnormal epidermal expression patterns, compared with healthy skin, but RelA distribution was unaltered. The skin of Nfkb1(-/-) and c-Rel(-/-) mice is structurally normal, but epidermal thickness and proliferation are significantly reduced, compared with wild-type mice. We show that the primary defect in both Nfkb1(-/-) and c-Rel(-/-) mice is within keratinocytes that display reduced proliferation both in vitro and in vivo. However, both genotypes can respond to proliferative stress, with 12-O-tetradecanoylphorbol-13-acetate-induced epidermal hyperproliferation and closure rates of full-thickness skin wounds being equivalent to those of wild-type controls. In a model of bleomycin-induced skin fibrosis, Nfkb1(-/-) and c-Rel(-/-) mice displayed opposite phenotypes, with c-Rel(-/-) mice being protected and Nfkb1(-/-) developing more fibrosis than wild-type mice. Taken together, our data reveal a role for p50 and c-Rel in regulating epidermal proliferation and homeostasis and a profibrogenic role for c-Rel in the skin, and identify a link between epidermal c-Rel expression and systemic sclerosis. Modulating the actions of these subunits could be beneficial for treating hyperproliferative or fibrogenic diseases of the skin.
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Affiliation(s)
- Nicola Fullard
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom
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