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Xiao X, Feng H, Liao Y, Tang H, Li L, Li K, Hu F. Identification of lncRNA-miRNA-mRNA Regulatory Network and Therapeutic Agents for Skin Aging by Bioinformatics Analysis. Biochem Genet 2023; 61:1606-1624. [PMID: 36719625 DOI: 10.1007/s10528-023-10334-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 01/09/2023] [Indexed: 02/01/2023]
Abstract
Skin aging is the most intuitive manifestation of aging. Skin aging inevitably leads to cosmetic and psychological problems, and even diseases. The present study aims to research the pathological and molecular mechanisms underlying skin aging and identify the therapeutic agents for reversing skin aging. Two available gene expression datasets (GSE55118 and GSE72264) for skin aging were downloaded from Gene Expression Omnibus, followed by bioinformatic analyses performed on the datasets. Firstly, 169 crucial mRNAs, 27 crucial miRNAs and 50 crucial lncRNAs closely related to skin aging were identified by weighted gene co-expression network analysis. Then, function Enrichment Analysis performed by Metascape database showed that skin aging involves a variety of biological functions, such as detection of stimulus, response to steroid hormone and water channel activity, regulation of muscle contraction. Next, ten hub genes including AQP4, TRPM8, TBR1, NTSR2, MPPED1, BARHL2, PAX9, CPN1, CES3, and CHGB were screened out by the protein-protein interaction analysis. Next, the "lncRNA-miRNA-mRNA" network and the "lncRNA-miRNA-hub mRNA" network were constructed to explore the competing endogenous RNAs mechanism of skin aging. Finally, ten significant potential small molecules mitigating skin aging were screened using CMAP platform, including tretinoin, pifithrin, selamectin, entinostat, bretazenil, syringic-acid, BRD-K96475865, emedastine, abacavir, and rotenone, and their reliability was verified by molecular docking experiments. The present study provided basis for revealing the molecular mechanism of skin aging and identified the potential candidate drugs for mitigating skin aging.
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Affiliation(s)
- Xiao Xiao
- Department of Dermatology, Hunan Provincial People's Hospital (The First-Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China.
| | - Hao Feng
- Department of Dermatology, Hunan Provincial People's Hospital (The First-Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China.
| | - Yangying Liao
- Department of Dermatology, Hunan Provincial People's Hospital (The First-Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China
| | - Hua Tang
- Department of Dermatology, Hunan Provincial People's Hospital (The First-Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China
| | - Lan Li
- Department of Dermatology, Hunan Provincial People's Hospital (The First-Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China
| | - Ke Li
- Department of Dermatology, Hunan Provincial People's Hospital (The First-Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China
| | - Feng Hu
- Department of Dermatology, Hunan Provincial People's Hospital (The First-Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China
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2
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Wagner RN, Piñón Hofbauer J, Wally V, Kofler B, Schmuth M, De Rosa L, De Luca M, Bauer JW. Epigenetic and metabolic regulation of epidermal homeostasis. Exp Dermatol 2021; 30:1009-1022. [PMID: 33600038 PMCID: PMC8359218 DOI: 10.1111/exd.14305] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/11/2021] [Accepted: 02/14/2021] [Indexed: 02/06/2023]
Abstract
Continuous exposure of the skin to environmental, mechanical and chemical stress necessitates constant self‐renewal of the epidermis to maintain its barrier function. This self‐renewal ability is attributed to epidermal stem cells (EPSCs), which are long‐lived, multipotent cells located in the basal layer of the epidermis. Epidermal homeostasis – coordinated proliferation and differentiation of EPSCs – relies on fine‐tuned adaptations in gene expression which in turn are tightly associated with specific epigenetic signatures and metabolic requirements. In this review, we will briefly summarize basic concepts of EPSC biology and epigenetic regulation with relevance to epidermal homeostasis. We will highlight the intricate interplay between mitochondrial energy metabolism and epigenetic events – including miRNA‐mediated mechanisms – and discuss how the loss of epigenetic regulation and epidermal homeostasis manifests in skin disease. Discussion of inherited epidermolysis bullosa (EB) and disorders of cornification will focus on evidence for epigenetic deregulation and failure in epidermal homeostasis, including stem cell exhaustion and signs of premature ageing. We reason that the epigenetic and metabolic component of epidermal homeostasis is significant and warrants close attention. Charting epigenetic and metabolic complexities also represents an important step in the development of future systemic interventions aimed at restoring epidermal homeostasis and ameliorating disease burden in severe skin conditions.
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Affiliation(s)
- Roland N Wagner
- Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - Josefina Piñón Hofbauer
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - Verena Wally
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - Barbara Kofler
- Research Program for Receptor Biochemistry and Tumor Metabolism, Department of Pediatrics, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - Matthias Schmuth
- Department of Dermatology, Medical University Innsbruck, Innsbruck, Austria
| | - Laura De Rosa
- Holostem Terapie Avanzate S.r.l., Center for Regenerative Medicine "Stefano Ferrari", Modena, Italy
| | - Michele De Luca
- Center for Regenerative Medicine "Stefano Ferrari", Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Johann W Bauer
- Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
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3
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Tacheau C, Weisgerber F, Fagot D, Bastien P, Verdier MP, Liboutet M, Sore G, Bernard BA. Vichy Thermal Spring Water (VTSW), a cosmetic ingredient of potential interest in the frame of skin ageing exposome: anin vitrostudy. Int J Cosmet Sci 2018; 40:377-387. [DOI: 10.1111/ics.12470] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 05/31/2018] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - D. Fagot
- L'Oréal R&I; Aulnay-sous-Bois; France
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4
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Pyo JH, Jeon HJ, Park JS, Lee JS, Chung HY, Yoo MA. Drosophila PEBP1 inhibits intestinal stem cell aging via suppression of ERK pathway. Oncotarget 2018; 9:17980-17993. [PMID: 29719584 PMCID: PMC5915051 DOI: 10.18632/oncotarget.24834] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 03/06/2018] [Indexed: 12/19/2022] Open
Abstract
The intestine is a high cellular turnover tissue largely dependent on the regenerative function of stem cell throughout life, and a signaling center for the health and viability of organisms. Therefore, better understanding of the mechanisms underlying the regulation of intestinal stem cell (ISC) regenerative potential is essential for the possible intervention of aging process and age-related diseases. Drosophila midgut is a well-established model system for studying the mechanisms underlying ISC regenerative potential during aging. Here, we report the requirement of Drosophila phosphatidylethanolamine binding protein 1 (PEBP1) in ISC regenerative potential. We showed that PEBP1 was strongly expressed in enterocytes (ECs) of guts and its decrease with age and oxidative stress. Furthermore, the downregulation of PEBP1 in ECs accelerates ISC aging, as evidenced by ISC hyper-proliferation, γH2AX accumulation, and centrosome amplification, and intestinal hyperplasia. The decrease in PEBP1 expression was associated with increased extracellular signal-regulated kinase (ERK) activity in ECs. All these phenotypes by EC-specific depletion of PEBP1 were rescued by the concomitant inhibition of ERK signaling. Our findings evidence that the age-related downregulation of PEBP1 in ECs is a novel cause accelerating ISC aging and that PEBP1 is an EC-intrinsic suppressor of epidermal growth factor receptor (EGFR)/ERK signaling. Our study provides molecular insights into the tight regulation of EGFR/ERK signaling in niches for stem cell regenerative potential.
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Affiliation(s)
- Jung-Hoon Pyo
- Department of Molecular Biology, Pusan National University, Busan, Republic of Korea.,Institute of Systems Biology (ISB), Pusan National University, Busan, Republic of Korea.,Molecular Inflammation Research Center for Aging Intervention (MRCA), College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Ho-Jun Jeon
- Department of Molecular Biology, Pusan National University, Busan, Republic of Korea
| | - Joung-Sun Park
- Department of Molecular Biology, Pusan National University, Busan, Republic of Korea.,Institute of Systems Biology (ISB), Pusan National University, Busan, Republic of Korea
| | - Jae-Sun Lee
- Department of Molecular Medicine and Hypoxia-Related Disease Research Center, Inha University College of Medicine, Incheon, Republic of Korea
| | - Hae-Young Chung
- Molecular Inflammation Research Center for Aging Intervention (MRCA), College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Mi-Ae Yoo
- Department of Molecular Biology, Pusan National University, Busan, Republic of Korea.,Institute of Systems Biology (ISB), Pusan National University, Busan, Republic of Korea
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5
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Tubulin Beta-3 Chain as a New Candidate Protein Biomarker of Human Skin Aging: A Preliminary Study. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017. [PMID: 28626498 PMCID: PMC5463169 DOI: 10.1155/2017/5140360] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Skin aging is a complex process, and a lot of efforts have been made to identify new and specific targets that could help to diagnose, prevent, and treat skin aging. Several studies concerning skin aging have analyzed the changes in gene expression, and very few investigations have been performed at the protein level. Moreover, none of these proteomic studies has used a global quantitative labeled proteomic offgel approach that allows a more accurate description of aging phenotype. We applied such an approach on human primary keratinocytes obtained from sun-nonexposed skin biopsies of young and elderly women. A total of 517 unique proteins were identified, and 58 proteins were significantly differentially expressed with 40 that were downregulated and 18 upregulated with aging. Gene ontology and pathway analysis performed on these 58 putative biomarkers of skin aging evidenced that these dysregulated proteins were mostly involved in metabolism and cellular processes such as cell cycle and signaling pathways. Change of expression of tubulin beta-3 chain was confirmed by western blot on samples originated from several donors. Thus, this study suggested the tubulin beta-3 chain has a promising biomarker in skin aging.
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6
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da Costa JP, Rocha-Santos T, Duarte AC. Analytical tools to assess aging in humans: The rise of geri-omics. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.09.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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7
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Shin JH, Choi JH, Choi S, Jung GB, Park HK, Moon SW. Clinico-biochemical investigations of aging effects on normoglycemic and hyperglycemic murine retinal tissues. Microsc Res Tech 2014; 77:1023-30. [DOI: 10.1002/jemt.22431] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Accepted: 08/25/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Jae-Ho Shin
- Department of Ophthalmology; College of Medicine, Kyung Hee University; Seoul 130-701 Korea
| | - Jeong Han Choi
- Department of Ophthalmology; College of Medicine, Kyung Hee University; Seoul 130-701 Korea
| | - Samjin Choi
- Department of Biomedical Engineering; College of Medicine, Kyung Hee University; Seoul 130-701 Korea
- Department of Medical Engineering; Kyung Hee University; Seoul 130-701 Korea
- Healthcare Industry Research Institute, Kyung Hee University; Seoul 130-701 Korea
| | - Gyeong Bok Jung
- Department of Biomedical Engineering; College of Medicine, Kyung Hee University; Seoul 130-701 Korea
- Healthcare Industry Research Institute, Kyung Hee University; Seoul 130-701 Korea
| | - Hun-Kuk Park
- Department of Biomedical Engineering; College of Medicine, Kyung Hee University; Seoul 130-701 Korea
- Department of Medical Engineering; Kyung Hee University; Seoul 130-701 Korea
- Healthcare Industry Research Institute, Kyung Hee University; Seoul 130-701 Korea
| | - Sang Woong Moon
- Department of Ophthalmology; College of Medicine, Kyung Hee University; Seoul 130-701 Korea
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8
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Qian H, Xu X. Reduction in DNA methyltransferases and alteration of DNA methylation pattern associate with mouse skin ageing. Exp Dermatol 2014; 23:357-9. [PMID: 24645644 DOI: 10.1111/exd.12375] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/12/2014] [Indexed: 11/29/2022]
Abstract
Understanding molecular mechanisms of skin ageing is critical for developing effective anti-ageing strategies. Recently, it has been suggested that epigenetics maybe be involved in tissue ageing and age-related diseases; however, the evidence regarding skin ageing has been very limited. We ran a pilot study in mouse skin to test whether DNA methyltransferases (Dnmts), DNA demethylases such as ten-eleven translocation enzymes (Tets) and DNA methylation of gene promoters change with age by quantitative RT-PCR and methylated DNA immunoprecipitation (MeDIP)-chip. We discovered that the expression of Dnmt3a, Dnmt3b and Tet2 declines significantly with skin ageing. The genome-wide DNA methylation analysis indicates that both hypermethylation and hypomethylation in promoters of genes are taken place. Functional category of those genes suggests that inhibition of cell proliferation and activation of immune response are important adaptations likely induced by skin ageing. These findings shed new light on epigenetic regulation of skin ageing.
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Affiliation(s)
- Hong Qian
- Department of Anesthesiology, Yale University School of Medicine, New Haven, CT, USA
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9
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Shin JU, Lee WJ, Oh SH, Kim DY, Kim DS, Jung I, Lee JH. Altered vimentin protein expression in human dermal microvascular endothelial cells after ultraviolet or intense pulsed light treatment. Lasers Surg Med 2014; 46:431-8. [DOI: 10.1002/lsm.22253] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2014] [Indexed: 01/13/2023]
Affiliation(s)
- Jung U Shin
- Department of Dermatology and Cutaneous Biology Research Institute, Institute for Human Tissue Restoration; Yonsei University College of Medicine; Seoul South Korea
| | - Won Jai Lee
- Department of Plastic and Reconstructive Surgery; Yonsei University College of Medicine; Seoul South Korea
| | - Sang Ho Oh
- Department of Dermatology and Cutaneous Biology Research Institute, Institute for Human Tissue Restoration; Yonsei University College of Medicine; Seoul South Korea
| | - Do Young Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Institute for Human Tissue Restoration; Yonsei University College of Medicine; Seoul South Korea
| | - Dae Suk Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Institute for Human Tissue Restoration; Yonsei University College of Medicine; Seoul South Korea
| | - Inhee Jung
- Department of Dermatology and Cutaneous Biology Research Institute, Institute for Human Tissue Restoration; Yonsei University College of Medicine; Seoul South Korea
| | - Ju Hee Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Institute for Human Tissue Restoration; Yonsei University College of Medicine; Seoul South Korea
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10
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Chiocchetti AG, Haslinger D, Boesch M, Karl T, Wiemann S, Freitag CM, Poustka F, Scheibe B, Bauer JW, Hintner H, Breitenbach M, Kellermann J, Lottspeich F, Klauck SM, Breitenbach-Koller L. Protein signatures of oxidative stress response in a patient specific cell line model for autism. Mol Autism 2014; 5:10. [PMID: 24512814 PMCID: PMC3931328 DOI: 10.1186/2040-2392-5-10] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 01/23/2014] [Indexed: 12/26/2022] Open
Abstract
Background Known genetic variants can account for 10% to 20% of all cases with autism spectrum disorders (ASD). Overlapping cellular pathomechanisms common to neurons of the central nervous system (CNS) and in tissues of peripheral organs, such as immune dysregulation, oxidative stress and dysfunctions in mitochondrial and protein synthesis metabolism, were suggested to support the wide spectrum of ASD on unifying disease phenotype. Here, we studied in patient-derived lymphoblastoid cell lines (LCLs) how an ASD-specific mutation in ribosomal protein RPL10 (RPL10[H213Q]) generates a distinct protein signature. We compared the RPL10[H213Q] expression pattern to expression patterns derived from unrelated ASD patients without RPL10[H213Q] mutation. In addition, a yeast rpl10 deficiency model served in a proof-of-principle study to test for alterations in protein patterns in response to oxidative stress. Methods Protein extracts of LCLs from patients, relatives and controls, as well as diploid yeast cells hemizygous for rpl10, were subjected to two-dimensional gel electrophoresis and differentially regulated spots were identified by mass spectrometry. Subsequently, Gene Ontology database (GO)-term enrichment and network analysis was performed to map the identified proteins into cellular pathways. Results The protein signature generated by RPL10[H213Q] is a functionally related subset of the ASD-specific protein signature, sharing redox-sensitive elements in energy-, protein- and redox-metabolism. In yeast, rpl10 deficiency generates a specific protein signature, harboring components of pathways identified in both the RPL10[H213Q] subjects’ and the ASD patients’ set. Importantly, the rpl10 deficiency signature is a subset of the signature resulting from response of wild-type yeast to oxidative stress. Conclusions Redox-sensitive protein signatures mapping into cellular pathways with pathophysiology in ASD have been identified in both LCLs carrying the ASD-specific mutation RPL10[H213Q] and LCLs from ASD patients without this mutation. At pathway levels, this redox-sensitive protein signature has also been identified in a yeast rpl10 deficiency and an oxidative stress model. These observations point to a common molecular pathomechanism in ASD, characterized in our study by dysregulation of redox balance. Importantly, this can be triggered by the known ASD-RPL10[H213Q] mutation or by yet unknown mutations of the ASD cohort that act upstream of RPL10 in differential expression of redox-sensitive proteins.
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Affiliation(s)
- Andreas G Chiocchetti
- Division of Molecular Genome Analysis, Deutsches Krebsforschungszentrum (DKFZ), Im Neuenheimer Feld 580, 69120 Heidelberg, Germany.,Department of Cell Biology, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria.,Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, J.W. Goethe University, Deutschordenstr. 50, 60528 Frankfurt am Main, Germany
| | - Denise Haslinger
- Department of Cell Biology, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria.,Division of Molecular Genome Analysis, Deutsches Krebsforschungszentrum (DKFZ), Im Neuenheimer Feld 580, 69120 Heidelberg, Germany.,Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, J.W. Goethe University, Deutschordenstr. 50, 60528 Frankfurt am Main, Germany
| | - Maximilian Boesch
- Department of Cell Biology, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria
| | - Thomas Karl
- Department of Cell Biology, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria
| | - Stefan Wiemann
- Division of Molecular Genome Analysis, Deutsches Krebsforschungszentrum (DKFZ), Im Neuenheimer Feld 580, 69120 Heidelberg, Germany
| | - Christine M Freitag
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, J.W. Goethe University, Deutschordenstr. 50, 60528 Frankfurt am Main, Germany
| | - Fritz Poustka
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, J.W. Goethe University, Deutschordenstr. 50, 60528 Frankfurt am Main, Germany
| | - Burghardt Scheibe
- Department of Cell Biology, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria
| | - Johann W Bauer
- Department of Dermatology, General Hospital Salzburg/PMU, Müllner-Hauptstr. 48, 5020 Salzburg, Austria
| | - Helmut Hintner
- Department of Dermatology, General Hospital Salzburg/PMU, Müllner-Hauptstr. 48, 5020 Salzburg, Austria
| | - Michael Breitenbach
- Department of Cell Biology, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria
| | - Josef Kellermann
- Max-Planck-Institute of Biochemistry, Protein Analysis Group, Am Klopferspitz 18, 82152 Martinsried, Germany
| | - Friedrich Lottspeich
- Max-Planck-Institute of Biochemistry, Protein Analysis Group, Am Klopferspitz 18, 82152 Martinsried, Germany
| | - Sabine M Klauck
- Division of Molecular Genome Analysis, Deutsches Krebsforschungszentrum (DKFZ), Im Neuenheimer Feld 580, 69120 Heidelberg, Germany
| | - Lore Breitenbach-Koller
- Department of Cell Biology, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria
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Rinnerthaler M, Duschl J, Steinbacher P, Salzmann M, Bischof J, Schuller M, Wimmer H, Peer T, Bauer JW, Richter K. Age-related changes in the composition of the cornified envelope in human skin. Exp Dermatol 2013; 22:329-35. [DOI: 10.1111/exd.12135] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/12/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Mark Rinnerthaler
- Department of Cell Biology; Division of Genetics; University of Salzburg; Salzburg Austria
| | - Jutta Duschl
- Department of Cell Biology; Division of Genetics; University of Salzburg; Salzburg Austria
| | - Peter Steinbacher
- Department of Organismic Biology; Division of Zoology; University of Salzburg; Salzburg Austria
| | - Manuel Salzmann
- Department of Cell Biology; Division of Genetics; University of Salzburg; Salzburg Austria
| | - Johannes Bischof
- Department of Cell Biology; Division of Genetics; University of Salzburg; Salzburg Austria
| | - Markus Schuller
- Department of Cell Biology; Division of Genetics; University of Salzburg; Salzburg Austria
| | - Herbert Wimmer
- Department of Cell Biology; Division of Genetics; University of Salzburg; Salzburg Austria
| | - Thomas Peer
- Department of Organismic Biology; Division of Zoology; University of Salzburg; Salzburg Austria
| | - Johann W. Bauer
- Department of Dermatology; Division of Molecular Dermatology and EB House Austria; Paracelsus Medical University; Salzburg Austria
| | - Klaus Richter
- Department of Cell Biology; Division of Genetics; University of Salzburg; Salzburg Austria
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12
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Swindell WR, Johnston A, Sun L, Xing X, Fisher GJ, Bulyk ML, Elder JT, Gudjonsson JE. Meta-profiles of gene expression during aging: limited similarities between mouse and human and an unexpectedly decreased inflammatory signature. PLoS One 2012; 7:e33204. [PMID: 22413003 PMCID: PMC3296693 DOI: 10.1371/journal.pone.0033204] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Accepted: 02/13/2012] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Skin aging is associated with intrinsic processes that compromise the structure of the extracellular matrix while promoting loss of functional and regenerative capacity. These processes are accompanied by a large-scale shift in gene expression, but underlying mechanisms are not understood and conservation of these mechanisms between humans and mice is uncertain. RESULTS We used genome-wide expression profiling to investigate the aging skin transcriptome. In humans, age-related shifts in gene expression were sex-specific. In females, aging increased expression of transcripts associated with T-cells, B-cells and dendritic cells, and decreased expression of genes in regions with elevated Zeb1, AP-2 and YY1 motif density. In males, however, these effects were contrasting or absent. When age-associated gene expression patterns in human skin were compared to those in tail skin from CB6F1 mice, overall human-mouse correspondence was weak. Moreover, inflammatory gene expression patterns were not induced with aging of mouse tail skin, and well-known aging biomarkers were in fact decreased (e.g., Clec7a, Lyz1 and Lyz2). These unexpected patterns and weak human-mouse correspondence may be due to decreased abundance of antigen presenting cells in mouse tail skin with age. CONCLUSIONS Aging is generally associated with a pro-inflammatory state, but we have identified an exception to this pattern with aging of CB6F1 mouse tail skin. Aging therefore does not uniformly heighten inflammatory status across all mouse tissues. Furthermore, we identified both intercellular and intracellular mechanisms of transcriptome aging, including those that are sex- and species-specific.
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Affiliation(s)
- William R Swindell
- Department of Genetics, Harvard Medical School, Boston, Massachusetts, United States of America.
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13
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Delattre C, Winstall E, Lessard C, Donovan M, Simonetti L, Minondo AM, Faure R, Calvo E, Coutet J, Verschoore M, Chaussade V, Castiel-Higounenc I, Labrie F, Leclaire J, Bernard D. Proteomic analysis identifies new biomarkers for postmenopausal and dry skin. Exp Dermatol 2012; 21:205-10. [DOI: 10.1111/j.1600-0625.2011.01434.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Wagner M, Hintner H, Bauer JW, Onder K. Gene expression analysis of an epidermolysis bullosa simplex Dowling-Meara cell line by subtractive hybridization: recapitulation of cellular differentiation, migration and wound healing. Exp Dermatol 2011; 21:111-7. [DOI: 10.1111/j.1600-0625.2011.01420.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Kim YJ, Cha HJ, Nam KH, Yoon Y, Lee H, An S. Centella asiatica extracts modulate hydrogen peroxide-induced senescence in human dermal fibroblasts. Exp Dermatol 2011; 20:998-1003. [DOI: 10.1111/j.1600-0625.2011.01388.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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16
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Understanding the biology of aging with interaction networks. Maturitas 2011; 69:126-30. [DOI: 10.1016/j.maturitas.2011.03.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Accepted: 03/10/2011] [Indexed: 11/22/2022]
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17
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Krieg T, Aumailley M. The extracellular matrix of the dermis: flexible structures with dynamic functions. Exp Dermatol 2011; 20:689-95. [PMID: 21615511 DOI: 10.1111/j.1600-0625.2011.01313.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The current understanding of the role of extracellular matrix proteins is mainly based on their structural properties and their assembly into complex networks. The multiplicity of interactions between cells, cytokines and growth factors within the networks determines functional units dictating the biophysical properties of tissues. This review focuses on the understanding how alterations in the genes, modifying enzymes or biological functions of extracellular matrix molecules, lead to inborn or acquired skin disorders. Analysis of the disease mechanisms provides the basis for the emerging concept that not solely structural defects of single extracellular matrix proteins are at fault, but rather that the functional unit as a whole is not working properly, causing similar clinical symptoms although the causative genes are entirely different. The understanding of these disease-causing pathways has already led to surprising new therapeutic developments applied to rare inborn disorders. They now permit to design new concepts for the treatment of more common diseases associated with the accumulation of connective tissue and alterations of the biomechanical properties of the extracellular matrix.
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Affiliation(s)
- Thomas Krieg
- Department of Dermatology, Medical Faculty, University of Cologne, Cologne, Germany.
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Joyce NC, Harris DL, Zhu CC. Age-related gene response of human corneal endothelium to oxidative stress and DNA damage. Invest Ophthalmol Vis Sci 2011; 52:1641-9. [PMID: 21087955 DOI: 10.1167/iovs.10-6492] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
PURPOSE Nuclear oxidative DNA damage increases with age in human corneal endothelial cells (HCECs) and contributes to their decreased proliferative capacity. These studies investigated whether HCECs respond to this damage by upregulating their expression of oxidative stress and DNA damage-signaling genes in an age-dependent manner. METHODS HCECs were dissected from the corneas of young (30 years and younger) and older (50 years and older) donors. Total RNA was isolated and reverse-transcribed. Oxidative stress and DNA damage-signaling gene expression were analyzed using commercial PCR-based microarrays. Western blot analyses were conducted on selected proteins to verify the microarray results. Nuclear DNA damage foci were detected in the endothelium of ex vivo corneas by immunostaining for H2AX-Ser139. RESULTS Four of 84 genes showed a statistically significant age-related difference in the expression of oxidative stress-related genes; however, Western blot analysis demonstrated an age-related increase in only 2 (cytoglobin and GPX-1) of 11 proteins tested. No age-related differences were detected in the expression of DNA damage-signaling genes. Western blot analysis of seven DNA damage-related proteins verified this finding. Intense nuclear staining of DNA damage foci was observed in nuclei within the central endothelium of older donors. Central endothelium from young donors consistently showed a low level of positive staining. CONCLUSIONS HCECs respond to age-related increases in oxidative nuclear DNA damage by forming DNA damage repair foci; however, they do not vigorously defend against or repair this damage by upregulating the expression of multiple oxidative stress or DNA damage-signaling genes.
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Affiliation(s)
- Nancy C Joyce
- Schepens Eye Research Institute, Harvard Medical School, Boston, Massachusetts 02114, USA.
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