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Woo SH, Mo YJ, Lee YI, Park JH, Hwang D, Park TJ, Kang HY, Park SC, Lee YS. ANT2 Accelerates Cutaneous Wound Healing in Aged Skin by Regulating Energy Homeostasis and Inflammation. J Invest Dermatol 2023; 143:2295-2310.e17. [PMID: 37211200 DOI: 10.1016/j.jid.2023.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 04/26/2023] [Accepted: 05/05/2023] [Indexed: 05/23/2023]
Abstract
An effective healing response is critical to healthy aging. In particular, energy homeostasis has become increasingly recognized as a factor in effective skin regeneration. ANT2 is a mediator of adenosine triphosphate import into mitochondria for energy homeostasis. Although energy homeostasis and mitochondrial integrity are critical for wound healing, the role played by ANT2 in the repair process had not been elucidated to date. In our study, we found that ANT2 expression decreased in aged skin and cellular senescence. Interestingly, overexpression of ANT2 in aged mouse skin accelerated the healing of full-thickness cutaneous wounds. In addition, upregulation of ANT2 in replicative senescent human diploid dermal fibroblasts induced their proliferation and migration, which are critical processes in wound healing. Regarding energy homeostasis, ANT2 overexpression increased the adenosine triphosphate production rate by activating glycolysis and induced mitophagy. Notably, ANT2-mediated upregulation of HSPA6 in aged human diploid dermal fibroblasts downregulated proinflammatory genes that mediate cellular senescence and mitochondrial damage. This study shows a previously uncharacterized physiological role of ANT2 in skin wound healing by regulating cell proliferation, energy homeostasis, and inflammation. Thus, our study links energy metabolism to skin homeostasis and reports, to the best of our knowledge, a previously unreported genetic factor that enhances wound healing in an aging model.
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Affiliation(s)
- Seung-Hwa Woo
- Department of New Biology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - Yun Jeong Mo
- Well Aging Research Center, Division of Biotechnology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - Yun-Il Lee
- Well Aging Research Center, Division of Biotechnology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - Ji Hwan Park
- Department of New Biology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - Daehee Hwang
- Department of Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Tae Jun Park
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Republic of Korea; Institution of Inflamm-aging Translational Research Center, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Hee Young Kang
- Institution of Inflamm-aging Translational Research Center, Ajou University School of Medicine, Suwon, Republic of Korea; Department of Dermatology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Sang Chul Park
- The Future Life & Society Research Center, Advanced Institute of Aging Science, Chonnam National University, Gwangju, Republic of Korea
| | - Young-Sam Lee
- Department of New Biology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea; Well Aging Research Center, Division of Biotechnology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea.
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2
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Chen X, Shi X, Xiao H, Xiao D, Xu X. Research hotspot and trend of chronic wounds: A bibliometric analysis from 2013 to 2022. Wound Repair Regen 2023; 31:597-612. [PMID: 37552080 DOI: 10.1111/wrr.13117] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/29/2023] [Accepted: 07/31/2023] [Indexed: 08/09/2023]
Abstract
Chronic wounds have been confirmed as a vital health problem facing people in the global population aging process. While significant progress has been achieved in the study of chronic wounds, the treatment effect should be further improved. The number of publications regarding chronic wounds has been rising rapidly. In this study, bibliometric analysis was conducted to explore the hotspots and trends in the research on chronic wounds. All relevant studies on chronic wounds between 2013 and 2022 were collected from the PubMed database of the Web of Science (WOS) and the National Center for Biotechnology Information (NCBI). The data were processed and visualised using a series of software. On that basis, more insights can be gained into hotspots and trends of this research field. Wound Repair and Regeneration has the highest academic achievement in the field of chronic wound research. The United States has been confirmed as the most productive country, and the University of California System ranks high among other institutions. Augustin, M. is the author of the most published study, and Frykberg, RG et al. published the most cited study. Furthermore, the hotspots of wound research over the last decade were identified (e.g., bandages, infection and biofilms, pathophysiology and therapy). This study will help researchers gain insights into chronic wound research's hotspots and trends accurately and quickly. Moreover, the exploration of bacterial biofilm and the pathophysiological mechanism of the chronic wound will lay a solid foundation and clear direction for treating chronic wounds.
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Affiliation(s)
- Xinghan Chen
- Department of Burns and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xiujun Shi
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Haitao Xiao
- Department of Burns and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Dongqin Xiao
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xuewen Xu
- Department of Burns and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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3
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Siu MC, Voisey J, Zang T, Cuttle L. MicroRNAs involved in human skin burns, wound healing and scarring. Wound Repair Regen 2023; 31:439-453. [PMID: 37268303 DOI: 10.1111/wrr.13100] [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: 10/17/2022] [Revised: 05/09/2023] [Accepted: 05/18/2023] [Indexed: 06/04/2023]
Abstract
MicroRNAs are small, non-coding RNAs that regulate gene expression, and consequently protein synthesis. Downregulation and upregulation of miRNAs and their corresponding genes can alter cell apoptosis, proliferation, migration and fibroproliferative responses following a thermal injury. This review summarises the evidence for altered human miRNA expression post-burn, and during wound healing and scarring. In addition, the most relevant miRNA targets and their roles in potential pathways are described. Previous studies using molecular techniques have identified 197 miRNAs associated with human wound healing, burn wound healing and scarring. Five miRNAs alter the expression of fibroproliferative markers, proliferation and migration of fibroblasts and keratinocytes post-burn: hsa-miR-21 and hsa-miR-31 are increased after wounding, and hsa-miR-23b, hsa-miR-200b and hsa-let-7c are decreased. Four of these five miRNAs are associated with the TGF-β pathway. In the future, large scale, in vivo, longitudinal human studies utilising a range of cell types, ethnicity and clinical healing outcomes are fundamental to identify burn wound healing and scarring specific markers. A comprehensive understanding of the underlying pathways will facilitate the development of clinical diagnostic or prognostic tools for better scar management and the identification of novel treatment targets for improved healing outcomes in burn patients.
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Affiliation(s)
- Man Ching Siu
- Faculty of Health, School of Biomedical Sciences, Centre for Children's Health Research, Queensland University of Technology (QUT), Brisbane, Queensland, Australia
- Centre for Genomics and Personalised Health Research, QUT, Brisbane, Queensland, Australia
| | - Joanne Voisey
- Centre for Genomics and Personalised Health Research, QUT, Brisbane, Queensland, Australia
| | - Tuo Zang
- Faculty of Health, School of Biomedical Sciences, Centre for Children's Health Research, Queensland University of Technology (QUT), Brisbane, Queensland, Australia
| | - Leila Cuttle
- Faculty of Health, School of Biomedical Sciences, Centre for Children's Health Research, Queensland University of Technology (QUT), Brisbane, Queensland, Australia
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4
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Liang W, Chen Y, Liu H, Zhao H, Luo T, Tang H, Zhou X, Jiang E, Shao Z, Liu K, Shang Z. Cancer cells corrupt normal epithelial cells through miR-let-7c-rich small extracellular vesicle-mediated downregulation of p53/PTEN. Int J Oral Sci 2022; 14:36. [PMID: 35851058 PMCID: PMC9293927 DOI: 10.1038/s41368-022-00192-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 06/20/2022] [Accepted: 06/23/2022] [Indexed: 11/09/2022] Open
Abstract
Tumor volume increases continuously in the advanced stage, and aside from the self-renewal of tumor cells, whether the oncogenic transformation of surrounding normal cells is involved in this process is currently unclear. Here, we show that oral squamous cell carcinoma (OSCC)-derived small extracellular vesicles (sEVs) promote the proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT) of normal epithelial cells but delay their apoptosis. In addition, nuclear-cytoplasmic invaginations and multiple nucleoli are observed in sEV-treated normal cells, both of which are typical characteristics of premalignant lesions of OSCC. Mechanistically, miR-let-7c in OSCC-derived sEVs is transferred to normal epithelial cells, leading to the transcriptional inhibition of p53 and inactivation of the p53/PTEN pathway. In summary, we demonstrate that OSCC-derived sEVs promote the precancerous transformation of normal epithelial cells, in which the miR-let-7c/p53/PTEN pathway plays an important role. Our findings reveal that cancer cells can corrupt normal epithelial cells through sEVs, which provides new insight into the progression of OSCC.
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Affiliation(s)
- Weilian Liang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory for Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yang Chen
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory for Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Hanzhe Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory for Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Hui Zhao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory for Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Tingting Luo
- Shenzhen PKU-HKUST Medical Center (Peking University Shenzhen Hospital), Shenzhen, China
| | - Hokeung Tang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory for Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Xiaocheng Zhou
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Erhui Jiang
- Department of Oral and Maxillofacial-Head and Neck oncology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Zhe Shao
- Department of Oral and Maxillofacial-Head and Neck oncology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Ke Liu
- Department of Oral and Maxillofacial-Head and Neck oncology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Zhengjun Shang
- Department of Oral and Maxillofacial-Head and Neck oncology, School & Hospital of Stomatology, Wuhan University, Wuhan, China.
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Shukla SK, Sharma AK, Bharti R, Kulshrestha V, Kalonia A, Shaw P. Can miRNAs Serve as Potential Markers in Thermal Burn Injury: An In Silico Approach. J Burn Care Res 2021; 41:57-64. [PMID: 31701154 DOI: 10.1093/jbcr/irz183] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Burn injury has been a major cause of morbidity at global levels. They can occur by multiple agents, such as thermal radiation and chemicals. Among all, thermal burn is predominant and may require specialized treatment in some patients. Although various biomarkers are reportedly used in thermal burn for understanding the pathophysiology of the injury, their limitations prompt for the search of suitable markers that can address the depth and severity of the burn. MicroRNAs (miRNAs) are conserved noncoding molecules that seem to be the promising marker due to their role in multiple pathways and participation in different physiological processes of the body. The present review highlights the role of miRNAs in the repair of the wound and their interaction with specific genes in response to burn stress. Key miR candidates include miR-21, miR-29a, miR-378a-5p, miR-100, miR-27b, miR-200c, miR-150, miR-499-5p, miR-92a, miR-194, and miR-146b, which are identified for their respective targets involved in wound repair. Furthermore, bioinformatics and computational tools were used to confirm the miRNAs and their specific targets. Gene and miRNA expression data sets were downloaded from Research Collaboratory for Structural Bioinformatics Protein Data Bank Database and RNAComposer, respectively, and docked by PatchDock. The possible implications of the identified miRNAs could be in understanding the mechanism of burn injury. These can also be studied with the available drugs being used for burn injury. Apart from that, new intended molecules may also be tested for their effect on these miRNAs.
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Affiliation(s)
- Sandeep K Shukla
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organisation, Timarpur, Delhi, India
| | - Ajay K Sharma
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organisation, Timarpur, Delhi, India
| | - Rhythm Bharti
- Sri Venkateswara College, University of Delhi, New Delhi, India
| | - Vidit Kulshrestha
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India
| | - Aman Kalonia
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organisation, Timarpur, Delhi, India
| | - Priyanka Shaw
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organisation, Timarpur, Delhi, India
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Su P, Qiao Q, Ji G, Zhang Z. CircAMD1 regulates proliferation and collagen synthesis via sponging miR-27a-3p in P63-mutant human dermal fibroblasts. Differentiation 2021; 119:10-18. [PMID: 33991897 DOI: 10.1016/j.diff.2021.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 03/20/2021] [Accepted: 04/27/2021] [Indexed: 10/21/2022]
Abstract
Transcription factor p63 has critical functions in epidermal, hindgut/anorectal, and limb development. Human mutations in P63 correlate with congenital syndromes affecting the skin, anorectal, and limbs. Nevertheless, less are detected regarding networks and functions controlled by P63 mutations in dermal fibroblasts, which are closely related to skin physiology. To screen for new targets, we employed microarray technology to investigate the R226Q P63 mutation with regards to the resulting circular RNA (circRNA) profiles from P63 point mutations in human dermal fibroblasts (HDFs). In this study, we show that P63-mutant HDFs display reduced proliferation, collagen synthesis, and myofibroblast differentiation; circAMD1 was also downregulated in P63-mutant HDFs compared with wild-type HDFs. Furthermore, overexpressing circAMD1 rescued the functional and phenotypic alterations of p63-mutant HDFs. We as well determined that miR-27a-3p was circAMD1 target involved in effects of circAMD1 in P63-mutant HDFs. Collectively, our data show that circAMD1 functions as a miR-27a-3p sponge that inhibits the functional and phenotypical alteration of P63-mutant HDFs and may be a critical marker in pathogenesis regarding P63-associated traits.
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Affiliation(s)
- Pengjun Su
- Department of Pediatric Surgery, Shengjing Hospital of China Medical University, Shenyang, China.
| | - Qi Qiao
- Department of Pediatric Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Gengfeng Ji
- Department of Pediatric Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Zhibo Zhang
- Department of Pediatric Surgery, Shengjing Hospital of China Medical University, Shenyang, China
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Abo-Al-Ela HG, Faggio C. MicroRNA-mediated stress response in bivalve species. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111442. [PMID: 33038725 DOI: 10.1016/j.ecoenv.2020.111442] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/25/2020] [Accepted: 09/29/2020] [Indexed: 06/11/2023]
Abstract
Bivalve mollusks are important aquatic organisms, which are used for biological monitoring because of their abundance, ubiquitous nature, and abilities to adapt to different environments. MicroRNAs (miRNAs) are small noncoding RNAs, which typically silence the expression of target genes; however, certain miRNAs directly or indirectly upregulate their target genes. They are rapidly modulated and play an essential role in shaping the response of organisms to stresses. Based on the regulatory function and rapid alteration of miRNAs, they could act as biomarkers for biotic and abiotic stress, including environmental stresses and contaminations. Moreover, mollusk, particularly hemocytes, rapidly respond to environmental changes, such as pollution, salinity changes, and desiccation, which makes them an attractive model for this purpose. Thus, bivalve mollusks could be considered a good animal model to examine a system's response to different environmental conditions and stressors. miRNAs have been reported to adjust the adaptation and physiological functions of bivalves during endogenous and environmental stressors. In this review, we aimed to discuss the potential mechanisms underlying the response of bivalves to stressors and how miRNAs orchestrate this process; however, if necessary, other organisms' response is included to explain specific processes.
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Affiliation(s)
- Haitham G Abo-Al-Ela
- Genetics and Biotechnology, Department of Aquaculture, Faculty of Fish Resources, Suez University, Suez 43518, Egypt.
| | - Caterina Faggio
- Department of Chemical, Biological, Pharmaceutical, and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres, 31, 98166 Messina, Italy.
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Wu S, Li H, Wang L, Yan L. Lidocaine promotes fibroblast proliferation after thermal injury via up‐regulating the expression of miR‐663 and miR‐486. Kaohsiung J Med Sci 2020; 36:274-280. [PMID: 31815358 DOI: 10.1002/kjm2.12166] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 11/17/2019] [Indexed: 12/24/2022] Open
Affiliation(s)
- Sheng‐Gang Wu
- Burn and Plastic Surgery DepartmentArmy Hospital of the 72nd army group Huzhou China
| | - Hua‐Tao Li
- Burn and Plastic Surgery DepartmentArmy Hospital of the 72nd army group Huzhou China
| | - Li‐Li Wang
- Burn and Plastic Surgery DepartmentArmy Hospital of the 72nd army group Huzhou China
| | - Lei Yan
- Burn and Plastic Surgery DepartmentArmy Hospital of the 72nd army group Huzhou China
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Zhang C, Dai J, Fan Y, He X, Wei R. MicroRNA-16 inhibits cell proliferation and migration by targeting heat shock protein 70 in heat-denatured dermal fibroblasts. Korean J Intern Med 2019; 34:634-642. [PMID: 29294597 PMCID: PMC6506753 DOI: 10.3904/kjim.2016.315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 04/17/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND/AIMS This study aimed to investigate the precise mechanism and function of miR-16 in heat-denatured primary human dermal fibroblasts. METHODS Primary human dermal fibroblasts were separated from normal human skin samples. Under heat stress, the levels of miR-16 and heat shock protein 70 (HSP70) were detected in primary human dermal fibroblasts by quantitative real-time polymerase chain reaction (qRT-PCR). Next, heat-denatured cells were transfected with synthetic scrambled negative control (NC) RNA (NC group), miR-16 mimics, miR-16 inhibitor or miR-16 inhibitor accompanied by small interfering RNA targeting HSP70, then the mRNA level of HSP70 was detected by qRT-PCR, cell proliferation was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and AlamarBlue assay, cell migration was examined by Transwell assay and cell apoptosis was assessed by transferase dUTP (deoxyuridine triphosphate) nick end labeling (TUNEL) assay. In addition, cell apoptosis-related proteins, Bax and Bcl-2, were detected by Western blotting. RESULTS Heat stress significantly reduced miR-16 level and increased the mRNA level of HSP70 compared with untreated cells (p < 0.05). Overexpressed miR-16 reduced the mRNA level of HSP70, suppressed cell proliferation (p < 0.05 or p < 0.01), migration (p < 0.05), and promoted cell apoptosis (p < 0.001) compared with the NC group. Down-regulated miR-16 exerted an opposite effect on primary human dermal fibroblasts with heat-denaturation. Furthermore, effects of miR16 down-regulation on cell proliferation and migration were reversed by HSP70 silence. CONCLUSION MiR-16 might have an inhibitory effect on cell proliferation and migration in heat-denatured human dermal fibroblasts, and HSP70 might be associated with the cell proliferation and migration as a target gene of miR-16.
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Affiliation(s)
- Chun Zhang
- Department of Burn Ningbo No.2 Hospital, Ningbo, China
| | - Jinhua Dai
- Department of Clinical Laboratory, Ningbo No.2 Hospital, Ningbo, China
| | - Youfen Fan
- Department of Burn Ningbo No.2 Hospital, Ningbo, China
| | - Xianghui He
- Department of Burn Ningbo No.2 Hospital, Ningbo, China
| | - Renxiong Wei
- Department of Clinical Laboratory, Ningbo Municipal Hospital of Traditional Chinese Medicine, Ningbo, China
- Correspondence to Renxiong Wei, B.D. Department of Clinical Laboratory, Ningbo Municipal Hospital of Traditional Chinese Medicine, No. 819, Liyuan North Rd, Ningbo 315010, China Tel: +86-574-87089086 Fax: +86-574-87089086 E-mail:
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10
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Zheng W, Yu A. EZH2-mediated suppression of lncRNA-LET promotes cell apoptosis and inhibits the proliferation of post-burn skin fibroblasts. Int J Mol Med 2018; 41:1949-1957. [PMID: 29393360 PMCID: PMC5810232 DOI: 10.3892/ijmm.2018.3425] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 11/09/2017] [Indexed: 12/28/2022] Open
Abstract
Although the upregulation of enhancer of zeste homolog 2 (EZH2) expression and downregulation of long non-coding RNA (lncRNA) LET expression are known to be associated with cell apoptosis and proliferation, little is known about the interaction of EZH2 with lncRNA LET. The present study aimed to investigate the interaction of EZH2 and lncRNA LET, and the mechanism of human dermal fibroblast (HDF) proliferation and apoptosis. Tissue samples from 33 burn patients with second- and third-degree burns and 8 controls were collected. mRNA was extracted from the burn tissues for analysis. Isolated primary HDFs were treated with heat or transfected with LET overexpression vectors, and the cell functions and associated proteins in the HDFs were analyzed. Decreased lncRNA LET expression was detected in burn tissues compared with normal skin. Heat-treated HDFs exhibited a reduction in lncRNA LET expression and increase in EZH2 expression. LET gain-of-function experiments in primary HDFs revealed increases in cell proliferation, the proportion of cells in the S stage, and cyclin D1 and cyclin-dependent kinase 4 (CDK4) expression, and reductions in the percentage of apoptotic cells, the Bax/Bcl-2 ratio and caspase-3 expression. RNA immunoprecipitation and chromatin immunoprecipitation assays demonstrated the interaction of ZH2 with lncRNA LET, and of EZH2 with H3K27me3 in HDFs. Furthermore, a negative correlation between lncRNA LET and EZH2 expression was identified. It may be concluded that increased lncRNA-LET expression promoted cell proliferation and inhibited cell apoptosis via the cyclin D1-CDK4 and Bax/Bcl-2/caspase-3 signaling pathways, respectively. Furthermore, the inhibition of lncRNA LET may be regarded as an option for use in the healing of burns.
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Affiliation(s)
- Weicai Zheng
- Department of Burns and Plastic Surgery, The First Affiliated Hospital of Henan University of Science and Technology, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
| | - Aixiang Yu
- Department of Burns and Plastic Surgery, The First Affiliated Hospital of Henan University of Science and Technology, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
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11
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Yang VK, Tai AK, Huh TP, Meola DM, Juhr CM, Robinson NA, Hoffman AM. Dysregulation of valvular interstitial cell let-7c, miR-17, miR-20a, and miR-30d in naturally occurring canine myxomatous mitral valve disease. PLoS One 2018; 13:e0188617. [PMID: 29315310 PMCID: PMC5760013 DOI: 10.1371/journal.pone.0188617] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 11/10/2017] [Indexed: 12/21/2022] Open
Abstract
Canine myxomatous mitral valve disease (MMVD) resembles the early stages of myxomatous pathology seen in human non-syndromic mitral valve prolapse, a common valvular heart disease in the adult human population. Canine MMVD is seen in older subjects, suggesting age-related epigenetic dysregulation leading to derangements in valvular cell populations and matrix synthesis or degradation. We hypothesized that valvular interstitial cells (VICs) undergo disease-relevant changes in miRNA expression. In primary VIC lines from diseased and control valves, miRNA expression was profiled using RT-qPCR and next generation sequencing. VICs from diseased valves showed phenotypic changes consistent with myofibroblastic differentiation (vimentinlow+, α-SMAhigh+), increases in senescence markers (p21, SA-β-gαl), and decreased cell viability and proliferation potential. RT-qPCR and miRNA sequencing analyses both showed significant (p<0.05) downregulation of let-7c, miR-17, miR-20a, and miR-30d in VICs from diseased valves compared to controls. Decreased let-7c, miR-17, and miR-20a may contribute to myofibroblastic differentiation in addition to cell senescence, and decreased miR-30d may disinhibit cell apoptosis. These data support the hypothesis that epigenetic dysregulation plays an important role in age-related canine MMVD.
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Affiliation(s)
- Vicky K. Yang
- Department of Clinical Sciences, Tufts University Cummings School of Veterinary Medicine, North Grafton, Massachusetts, United States of America
- * E-mail:
| | - Albert K. Tai
- Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
| | - Terry P. Huh
- Department of Clinical Sciences, Tufts University Cummings School of Veterinary Medicine, North Grafton, Massachusetts, United States of America
| | - Dawn M. Meola
- Department of Clinical Sciences, Tufts University Cummings School of Veterinary Medicine, North Grafton, Massachusetts, United States of America
| | - Christine M. Juhr
- Department of Clinical Sciences, Tufts University Cummings School of Veterinary Medicine, North Grafton, Massachusetts, United States of America
| | - Nicholas A. Robinson
- Department of Biomedical Sciences, Tufts University Cummings School of Veterinary Medicine, North Grafton, Massachusetts, United States of America
| | - Andrew M. Hoffman
- Department of Clinical Sciences, Tufts University Cummings School of Veterinary Medicine, North Grafton, Massachusetts, United States of America
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12
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He X, Dai J, Fan Y, Zhang C, Zhao X. Regulation function of MMP-1 downregulated by siRNA on migration of heat-denatured dermal fibroblasts. Bioengineered 2017; 8:686-692. [PMID: 28277161 PMCID: PMC5736340 DOI: 10.1080/21655979.2016.1267885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
Cutaneous wound healing is a complex physiological process that requires the efforts of various cell types and signaling pathways and often results in thickened collagen-enriched healed tissue called a scar. Therefore, the identification of the mechanism of cutaneous wound healing is necessary and has great value in providing better treatment. Here, we demonstrated that MMP-1 inhibition could promote cell proliferation in dermal fibroblasts via the MTT assay. Meanwhile, we investigated cell migration by flow cytometry and tested type I collagenase activity. We found that MMP-1 inhibition promoted cell proliferation and inhibited cell migration and type I collagenase activity. In conclusion, our study demonstrated that MMP-1 might be a potential therapeutic target in cutaneous wound healing.
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Affiliation(s)
- Xianghui He
- a Department of Burn , Ningbo No. 2 Hospital, Ningbo , China
| | - Jinhua Dai
- b Department of Clinical Laboratory , Ningbo No. 2 Hospital, Ningbo , China
| | - Youfen Fan
- a Department of Burn , Ningbo No. 2 Hospital, Ningbo , China
| | - Chun Zhang
- a Department of Burn , Ningbo No. 2 Hospital, Ningbo , China
| | - Xihong Zhao
- c Key Laboratory for Green Chemical Process of Ministry of Education , School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology , Wuhan , China
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Borosch S, Dahmen E, Beckers C, Stoppe C, Buhl EM, Denecke B, Goetzenich A, Kraemer S. Characterization of extracellular vesicles derived from cardiac cells in an in vitro model of preconditioning. J Extracell Vesicles 2017; 6:1390391. [PMID: 29479396 PMCID: PMC5819478 DOI: 10.1080/20013078.2017.1390391] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 10/06/2017] [Indexed: 12/23/2022] Open
Abstract
Preconditioning is a promising technique to protect the heart from ischaemia-reperfusion injury. In this context, the crosstalk between different cardiac cell types and especially the exchange of cardioprotective mediators has come into the focus of current research. Recently, extracellular vesicles (EVs), nano-sized structures, emerged as possible communication mediators. They are taken up by recipient cells and can alter gene expression or activate intracellular signal cascades. It has been shown that all cardiac cell types are able to secrete EVs, but so far the influence of an in vitro preconditioning stimulus on EV concentration and composition has not been investigated. Therefore, we stimulated primary cardiac myocytes and fibroblasts from neonatal rats, as well as H9c2 cells, with two known in vitro preconditioning stimuli: hypoxia or isoflurane. EVs were isolated from cell culture supernatants 48 h after stimulation by differential centrifugation and size exclusion chromatography. They were characterized by transmission electron microscopy, tunable resistive pulse sensing, miRNA array and Western blot analysis. The detected EVs had the typical cup-shaped morphology and a size of about 150 nm. No significant differences in EV concentration were observed between the different groups. The protein and miRNA load was affected by in vitro preconditioning with isoflurane or hypoxia. EV markers like Alix, CD63, flotillin-1 and especially heat shock protein 70 were significantly up-regulated by the treatments. Several miRNAs like miR-92b-3p, miR-761 and miR-101a-5p were also significantly affected. A migration assay confirmed the physiological benefit of these EVs. Taken together, our findings show that a model of in vitro preconditioning of cardiac cells does not influence EV concentration but strongly regulates the EV cargo and affects migration. This might indicate a role for EV-mediated communication in isoflurane- and hypoxia-induced in vitro preconditioning.
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Affiliation(s)
- Sebastian Borosch
- Department of Thoracic and Cardiovascular Surgery, University Hospital RWTH Aachen, Aachen, Germany
- Cardiovascular Critical Care & Anesthesia research and evaluation (3CARE), University Hospital RWTH Aachen, Aachen, Germany
| | - Eva Dahmen
- Department of Thoracic and Cardiovascular Surgery, University Hospital RWTH Aachen, Aachen, Germany
- Cardiovascular Critical Care & Anesthesia research and evaluation (3CARE), University Hospital RWTH Aachen, Aachen, Germany
| | - Christian Beckers
- Department of Thoracic and Cardiovascular Surgery, University Hospital RWTH Aachen, Aachen, Germany
- Cardiovascular Critical Care & Anesthesia research and evaluation (3CARE), University Hospital RWTH Aachen, Aachen, Germany
| | - Christian Stoppe
- Cardiovascular Critical Care & Anesthesia research and evaluation (3CARE), University Hospital RWTH Aachen, Aachen, Germany
- Department of Intensive Care Medicine, University Hospital RWTH Aachen, Aachen, Germany
| | - Eva Miriam Buhl
- Electron Microscopy Facility, University Hospital RWTH Aachen, Aachen, Germany
| | - Bernd Denecke
- Interdisciplinary Center for Clinical Research, University Hospital RWTH Aachen, Aachen, Germany
| | - Andreas Goetzenich
- Department of Thoracic and Cardiovascular Surgery, University Hospital RWTH Aachen, Aachen, Germany
- Cardiovascular Critical Care & Anesthesia research and evaluation (3CARE), University Hospital RWTH Aachen, Aachen, Germany
| | - Sandra Kraemer
- Department of Thoracic and Cardiovascular Surgery, University Hospital RWTH Aachen, Aachen, Germany
- Cardiovascular Critical Care & Anesthesia research and evaluation (3CARE), University Hospital RWTH Aachen, Aachen, Germany
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