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Wang Q, Yan H, Zhang J, Tian X, Xiao J. Engineering a durable BDDE cross-linked collagen filler for skin rejuvenation. Biomed Mater 2024; 19:055021. [PMID: 39069835 DOI: 10.1088/1748-605x/ad6548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 07/18/2024] [Indexed: 07/30/2024]
Abstract
Skin aging, characterized by reduced regeneration, chronic inflammation, and heightened skin cancer risk, poses a significant challenge. Collagen fillers have emerged as a potential solution for skin rejuvenation by stimulating collagen regeneration. However, their clinical efficacy is limited by inherent instability and vulnerability toin vivodegradation by collagenase. Chemical cross-linking presents a promising approach to enhance stability, but it carries risks such as cytotoxicity, calcification, and discoloration. Here, we introduce a highly durable 1,4-butanediol diglycidyl ether (BDDE) cross-linked collagen filler for skin rejuvenation. BDDE effectively cross-links collagen, resulting in fillers with exceptional mechanical strength and injectability. These fillers demonstrate favorable stability and durability, promoting proliferation, adhesion, and spreading of human foreskin fibroblast-1 cellsin vitro. In vivostudies confirm enhanced collagen regeneration without inducing calcification. BDDE cross-linked collagen fillers offer promising prospects for medical cosmetology and tissue regeneration.
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Affiliation(s)
- Qi Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
- Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, People's Republic of China
| | - Huiyu Yan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
- Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, People's Republic of China
| | - Jingting Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
- Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, People's Republic of China
| | - Xinyu Tian
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
- Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, People's Republic of China
| | - Jianxi Xiao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
- Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, People's Republic of China
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Meng Y, Zhang J, Liu Y, Zhu Y, Lv H, Xia F, Guo Q, Shi Q, Qiu C, Wang J. The biomedical application of inorganic metal nanoparticles in aging and aging-associated diseases. J Adv Res 2024:S2090-1232(24)00213-3. [PMID: 38821357 DOI: 10.1016/j.jare.2024.05.023] [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: 10/30/2023] [Revised: 05/10/2024] [Accepted: 05/22/2024] [Indexed: 06/02/2024] Open
Abstract
Aging and aging-associated diseases (AAD), including neurodegenerative disease, cancer, cardiovascular diseases, and diabetes, are inevitable process. With the gradual improvement of life style, life expectancy is gradually extended. However, the extended lifespan has not reduced the incidence of disease, and most elderly people are in ill-health state in their later years. Hence, understanding aging and AAD are significant for reducing the burden of the elderly. Inorganic metal nanoparticles (IMNPs) predominantly include gold, silver, iron, zinc, titanium, thallium, platinum, cerium, copper NPs, which has been widely used to prevent and treat aging and AAD due to their superior properties (essential metal ions for human body, easily synthesis and modification, magnetism). Therefore, a systematic review of common morphological alternations of senescent cells, altered genes and signal pathways in aging and AAD, and biomedical applications of IMNPs in aging and AAD is crucial for the further research and development of IMNPs in aging and AAD. This review focus on the existing research on cellular senescence, aging and AAD, as well as the applications of IMNPs in aging and AAD in the past decade. This review aims to provide cutting-edge knowledge involved with aging and AAD, the application of IMNPs in aging and AAD to promote the biomedical application of IMNPs in aging and AAD.
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Affiliation(s)
- Yuqing Meng
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Junzhe Zhang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yanqing Liu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yongping Zhu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Haining Lv
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Fei Xia
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Qiuyan Guo
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Qianli Shi
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Chong Qiu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Jigang Wang
- Department of Urology, Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital; The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China; State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng 475004, China.
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Ananthamohan K, Stelzer JE, Sadayappan S. Hypertrophic cardiomyopathy in MYBPC3 carriers in aging. THE JOURNAL OF CARDIOVASCULAR AGING 2024; 4:9. [PMID: 38406555 PMCID: PMC10883298 DOI: 10.20517/jca.2023.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Hypertrophic cardiomyopathy (HCM) is characterized by abnormal thickening of the myocardium, leading to arrhythmias, heart failure, and elevated risk of sudden cardiac death, particularly among the young. This inherited disease is predominantly caused by mutations in sarcomeric genes, among which those in the cardiac myosin binding protein-C3 (MYBPC3) gene are major contributors. HCM associated with MYBPC3 mutations usually presents in the elderly and ranges from asymptomatic to symptomatic forms, affecting numerous cardiac functions and presenting significant health risks with a spectrum of clinical manifestations. Regulation of MYBPC3 expression involves various transcriptional and translational mechanisms, yet the destiny of mutant MYBPC3 mRNA and protein in late-onset HCM remains unclear. Pathogenesis related to MYBPC3 mutations includes nonsense-mediated decay, alternative splicing, and ubiquitin-proteasome system events, leading to allelic imbalance and haploinsufficiency. Aging further exacerbates the severity of HCM in carriers of MYBPC3 mutations. Advancements in high-throughput omics techniques have identified crucial molecular events and regulatory disruptions in cardiomyocytes expressing MYBPC3 variants. This review assesses the pathogenic mechanisms that promote late-onset HCM through the lens of transcriptional, post-transcriptional, and post-translational modulation of MYBPC3, underscoring its significance in HCM across carriers. The review also evaluates the influence of aging on these processes and MYBPC3 levels during HCM pathogenesis in the elderly. While pinpointing targets for novel medical interventions to conserve cardiac function remains challenging, the emergence of personalized omics offers promising avenues for future HCM treatments, particularly for late-onset cases.
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Affiliation(s)
- Kalyani Ananthamohan
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Julian E. Stelzer
- Department of Physiology and Biophysics, School of Medicine, Case Western Reserve University, Cleveland, OH 45267, USA
| | - Sakthivel Sadayappan
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, Cincinnati, OH 45267, USA
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Abstract
Keratinocyte senescence contributes to skin ageing and epidermal dysfunction. According to the existing knowledge, the transcription factor ΔNp63α plays pivotal roles in differentiation and proliferation of keratinocytes. It is traditionally accepted that ΔNp63α exerts its functions via binding to promoter regions to activate or repress gene transcription. However, accumulating evidence demonstrates that ΔNp63α can bind to elements away from promoter regions of its target genes, mediating epigenetic regulation. On the other hand, several epigenetic alterations, including DNA methylation, histone modification and variation, chromatin remodelling, as well as enhancer-promoter looping, are found to be related to cell senescence. To systematically elucidate how ΔNp63α affects keratinocyte senescence via epigenetic regulation, we comprehensively compiled the literatures on the roles of ΔNp63α in keratinocyte senescence, epigenetics in cellular senescence, and the relation between ΔNp63α-mediated epigenetic regulation and keratinocyte senescence. Based on the published data, we conclude that ΔNp63α mediates epigenetic regulation via multiple mechanisms: recruiting epigenetic enzymes to modify DNA or histones, coordinating chromatin remodelling complexes (CRCs) or regulating their expression, and mediating enhancer-promoter looping. Consequently, the expression of genes related to cell cycle is modulated, and proliferation of keratinocytes and renewal of stem cells are maintained, by ΔNp63α. During skin inflammaging, the decline of ΔNp63α may lead to epigenetic dysregulation, resultantly deteriorating keratinocyte senescence.
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Affiliation(s)
- Linghan Kuang
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu 610041, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu 610041, China
| | - Chenghua Li
- Center of Growth, Metabolism and Aging, Key Laboratory of Biological Resources and Ecological Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China
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Wahyuningsih KA, Pangkahila WI, Weta IWW, Widiana IGR, Wahyuniari IAI. Potential Utilisation of Secretome from Ascorbic Acid-Supplemented Stem Cells in Combating Skin Aging: Systematic Review of A Novel Idea. CELL JOURNAL 2023; 25:591-602. [PMID: 37718762 PMCID: PMC10520989 DOI: 10.22074/cellj.2023.1995999.1253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 06/10/2023] [Accepted: 06/24/2023] [Indexed: 09/19/2023]
Abstract
The secretome of stem cells consists of a spectrum of bioactive factors secreted by stem cells grown in culture mediacytokines, chemokines, and growth factors in addition to extracellular vesicles (exosomes and microvesicles). Ease of handling and storage of secretomes along with their bioactivity towards processes in skin aging and customizability makes them an appealing prospective therapy for skin aging. This systematic review aims to investigate the potential usage of ascorbic acid (AA)-supplemented stem cell secretomes (SCS) in managing skin aging. We extracted articles from three databases: PubMed, Scopus, and Cochrane. This review includes in vitro, in vivo, and clinical studies published in English that discuss the correlation of AA-supplemented-SCS with skin aging. We identified 1111 articles from database and non-database sources from which nine studies met the inclusion criteria. However, the study results were less specific due to the limited amount of available research that specifically assessed the effects of AAsupplemented SCS in skin aging. Although further studies are necessary, the AA modification of SCS is a promising potential for improving skin health.
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Affiliation(s)
- Komang Ardi Wahyuningsih
- Doctoral Program, Faculty of Medicine, Universitas Udayana, Denpasar, Indonesia.
- Histology Department, School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
| | - Wimpie I Pangkahila
- Doctoral Program, Faculty of Medicine, Universitas Udayana, Denpasar, Indonesia
| | - I Wayan Weta Weta
- Doctoral Program, Faculty of Medicine, Universitas Udayana, Denpasar, Indonesia
| | - I Gde Raka Widiana
- Doctoral Program, Faculty of Medicine, Universitas Udayana, Denpasar, Indonesia
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Roy L, Chatterjee O, Bose D, Roy A, Chatterjee S. Noncoding RNA as an influential epigenetic modulator with promising roles in cancer therapeutics. Drug Discov Today 2023; 28:103690. [PMID: 37379906 DOI: 10.1016/j.drudis.2023.103690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 05/11/2023] [Accepted: 06/21/2023] [Indexed: 06/30/2023]
Abstract
The epigenetic landscape has an important role in cellular homeostasis and its deregulation leads to cancer. Noncoding (nc)RNA networks function as major regulators of cellular epigenetic hallmarks via regulation of vital processes, such as histone modification and DNA methylation. They are integral intracellular components affecting multiple oncogenic pathways. Thus, it is important to elucidate the effects of ncRNA networks on epigenetic programming that lead to the initiation and progression of cancer. In this review, we summarize the effects of epigenetic modification influenced by ncRNA networks and crosstalk between diverse classes of ncRNA, which could aid the development of patient-specific cancer therapeutics targeting ncRNAs, thereby altering cellular epigenetics.
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Affiliation(s)
- Laboni Roy
- Department of Biophysics, Bose Institute, Kolkata 700091, India
| | | | - Debopriya Bose
- Department of Biophysics, Bose Institute, Kolkata 700091, India
| | - Ananya Roy
- Department of Biophysics, Bose Institute, Kolkata 700091, India
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Uppala SN, Tryphena KP, Naren P, Srivastava S, Singh SB, Khatri DK. Involvement of miRNA on Epigenetics landscape of Parkinson's disease: From pathogenesis to therapeutics. Mech Ageing Dev 2023:111826. [PMID: 37268278 DOI: 10.1016/j.mad.2023.111826] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 05/21/2023] [Accepted: 05/29/2023] [Indexed: 06/04/2023]
Abstract
The development of novel therapeutics for the effective management of Parkinson's disease (PD) is undertaken seriously by the scientific community as the burden of PD continues to increase. Several molecular pathways are being explored to identify novel therapeutic targets. Epigenetics is strongly implicated in several neurodegenerative diseases (NDDs) including PD. Several epigenetic mechanisms were found to dysregulated in various studies. These mechanisms are regulated by several miRNAs which are associated with a variety of pathogenic mechanisms in PD. This concept is extensively investigated in several cancers but not well documented in PD. Identifying the miRNAs with dual role i.e., regulation of epigenetic mechanisms as well as modulation of proteins implicated in the pathogenesis of PD could pave way for the development of novel therapeutics to target them. These miRNAs could also serve as potential biomarkers and can be useful in the early diagnosis or assessment of disease severity. In this article we would like to discuss about various epigenetic changes operating in PD and how miRNAs are involved in the regulation of these mechanisms and their potential to be novel therapeutic targets in PD.
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Affiliation(s)
- Sai Nikhil Uppala
- Molecular and cellular neuroscience lab, Department of pharmacology and toxicology, National Institute of Pharmaceutical Education and Research (NIPER)- Hyderabad, Telangana-500037
| | - Kamatham Pushpa Tryphena
- Molecular and cellular neuroscience lab, Department of pharmacology and toxicology, National Institute of Pharmaceutical Education and Research (NIPER)- Hyderabad, Telangana-500037
| | - Padmashri Naren
- Molecular and cellular neuroscience lab, Department of pharmacology and toxicology, National Institute of Pharmaceutical Education and Research (NIPER)- Hyderabad, Telangana-500037
| | - Saurabh Srivastava
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)- Hyderabad, Telangana-500037
| | - Shashi Bala Singh
- Molecular and cellular neuroscience lab, Department of pharmacology and toxicology, National Institute of Pharmaceutical Education and Research (NIPER)- Hyderabad, Telangana-500037.
| | - Dharmendra Kumar Khatri
- Molecular and cellular neuroscience lab, Department of pharmacology and toxicology, National Institute of Pharmaceutical Education and Research (NIPER)- Hyderabad, Telangana-500037.
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Molecular basis of skin photoaging and therapeutic interventions by plant-derived natural product ingredients: A comprehensive review. Heliyon 2023; 9:e13580. [PMID: 36895391 PMCID: PMC9988502 DOI: 10.1016/j.heliyon.2023.e13580] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 01/30/2023] [Accepted: 02/02/2023] [Indexed: 02/11/2023] Open
Abstract
Skin areas exposed to ultraviolet radiation (UV) from sunlight are more prone to photoaging than unexposed areas evidenced by several signs which include skin dryness, irregular pigmentation, lentigines, hyperpigmentation, wrinkling, and decreased elasticity. Plant-based natural product ingredients with therapeutic potential against skin photoaging are gaining more attention. This article aims the reviewing the research work done in exploring the cellular and molecular mechanisms involved in UV-induced skin photoaging, followed by summarizing the mechanistic insights involved in its therapeutics by natural product-based ingredients. In the mechanistic section of the convoluted procedure of photoaging, we described the effect of UV radiation (UVR) on different cellular macromolecules (direct damage) and subsequently, the deleterious consequences of UVR-generated reactive oxygen species (indirect damage) and signaling pathways activated or inhibited by UV induced ROS generation in various cellular pathologies of skin photoaging like inflammation, extracellular matrix degradation, apoptosis, mitochondrial dysfunction, and immune suppression. We also discussed the effect of UV radiation on the adipose tissue, and transient receptor potential cation channel V of photoaging skin. In the past few decades, mechanistic studies performed in this area have deciphered various therapeutic targets, opening avenues for different available therapeutic options against this pathological condition. So the remaining portion of the review deals with various natural product-based therapeutic agents available against skin photodamage.
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Soheilifar MH, Masoudi-Khoram N, Shirkavand A, Ghorbanifar S. Non-coding RNAs in photoaging-related mechanisms: a new paradigm in skin health. Biogerontology 2022; 23:289-306. [PMID: 35587318 DOI: 10.1007/s10522-022-09966-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 05/02/2022] [Indexed: 11/25/2022]
Abstract
The aging of skin is a biological process affected by environmental or genetic factors. Exposure to ultraviolet (UV) radiation is the main environmental factor causing skin aging. Cumulative UV-induced photodamage of the skin tissue is associated with premature cellular senescence, extracellular degradation, and inflammatory responses in photoaging processes. Non-coding RNAs (ncRNAs) are untranslated transcripts and master regulators of protein-coding genes. ncRNAs have a critical regulatory role in maintaining skin structure, skin barrier function, morphogenesis, and development. Altered ncRNA expression has been reported in various skin disorders such as photoaging and skin cancers. ncRNAs contribute to the suppression and promotion of photoaging by modulating signaling pathways such as mitogen-activated protein kinase (MAPK) pathway and regulating inflammatory cytokines, matrix metalloproteinases (MMPs), and senescence-associated genes. Elucidation of the functions of ncRNAs will improve the identification of molecular mechanisms underlying photoaging, and can be used in the development of therapeutic approaches in skin health and prevention of sun-induced aging. This review summarized the currently described ncRNAs and their functions in photoaging.
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Affiliation(s)
- Mohammad Hasan Soheilifar
- Department of Medical Laser, Medical Laser Research Center, Yara Institute, Academic Center for Education, Culture and Research (ACECR), Enghelab St, 1315795613, Tehran, Iran.
| | - Nastaran Masoudi-Khoram
- Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Afshan Shirkavand
- Department of Medical Laser, Medical Laser Research Center, Yara Institute, Academic Center for Education, Culture and Research (ACECR), Enghelab St, 1315795613, Tehran, Iran
| | - Shima Ghorbanifar
- Department of Medical Laser, Medical Laser Research Center, Yara Institute, Academic Center for Education, Culture and Research (ACECR), Enghelab St, 1315795613, Tehran, Iran
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UVB irradiation differential regulate miRNAs expression in skin photoaging. An Bras Dermatol 2022; 97:458-466. [PMID: 35660030 PMCID: PMC9263642 DOI: 10.1016/j.abd.2022.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/13/2022] [Accepted: 01/18/2022] [Indexed: 11/22/2022] Open
Abstract
Background UVB irradiation can cause acute damage such as sunburn, or photoaging and melanoma, all of which are major health threats. Objective This study was designed to investigate the mechanism of skin photoaging induced by UVB radiation in mice through the analysis of the differential expression of miRNAs. Methods A UVB irradiation photoaging model was constructed. HE and Masson special stains were used to examine the modifications in the epidermis and dermis of mice. The miRNA expression profiles of the mouse skin model exposed to UVB radiation and the normal skin of mice were analyzed using miRNA-sequence analysis. GO and Pathway analysis were employed for the prediction of miRNA targets. Results A total of 23 miRNAs were evaluated for significantly different expressions in comparison to normal skin. Among them, 7 miRNAs were up-regulated and 16 were down-regulated in the skin with photoaging of mice exposed to UVB irradiation. The differential expression of miRNA is related to a variety of signal transduction pathways, among which mmu-miR-195a-5p and mitogen-activated protein kinase (MAPK) signal pathways are crucial. There was a significant differential expression of miRNA in the skin of normal mice in comparison with the skin with photoaging induced by UVB irradiation. Study limitations Due to time and energy constraints, the specific protein level verification, MAPK pathway exploration, and miR-195a-5p downstream molecular mechanism need to be further studied in the future. Conclusions UVB-induced skin photoaging can be diagnosed and treated using miRNA.
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microRNA-Mediated Encoding and Decoding of Time-Dependent Signals in Tumorigenesis. Biomolecules 2022; 12:biom12020213. [PMID: 35204714 PMCID: PMC8961662 DOI: 10.3390/biom12020213] [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: 11/22/2021] [Revised: 01/13/2022] [Accepted: 01/21/2022] [Indexed: 02/01/2023] Open
Abstract
microRNAs, pivotal post-transcriptional regulators of gene expression, in the past decades have caught the attention of researchers for their involvement in different biological processes, ranging from cell development to cancer. Although lots of effort has been devoted to elucidate the topological features and the equilibrium properties of microRNA-mediated motifs, little is known about how the information encoded in frequency, amplitude, duration, and other features of their regulatory signals can affect the resulting gene expression patterns. Here, we review the current knowledge about microRNA-mediated gene regulatory networks characterized by time-dependent input signals, such as pulses, transient inputs, and oscillations. First, we identify the general characteristic of the main motifs underlying temporal patterns. Then, we analyze their impact on two commonly studied oncogenic networks, showing how their dysfunction can lead to tumorigenesis.
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Protective effects of galangin against H 2O 2/UVB-induced dermal fibroblast collagen degradation via hsa-microRNA-4535-mediated TGFβ/Smad signaling. Aging (Albany NY) 2021; 13:25342-25364. [PMID: 34890367 PMCID: PMC8714160 DOI: 10.18632/aging.203750] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 11/23/2021] [Indexed: 12/14/2022]
Abstract
This study aimed to investigate the mechanism underlying the protective effects of galangin against H2O2/UVB-induced damage using in vitro and in vivo models of photodamage. Moreover, we identified the involvement of miRNA regulation in this process. The H2O2/UVB-treated HS68 human dermal fibroblasts and UVB-induced C57BL/6J nude mice were used as in vitro and in vivo models of photodamage. The results showed that galangin treatment alleviated H2O2/UVB-induced reduction in cell viability, TGFβ/Smad signaling impairment, and dermal aging. Based on the results of microRNA array analyses and database searches, hsa-miR-4535 was identified as a potential candidate miRNA that targets Smad4. In vitro, galangin treatment activated Smad2/3/4 complex and inhibited hsa-miR-4535 expression in H2O2/UVB-exposed cells. In vivo, topical application of low (12 mg/kg) and high doses (24 mg/kg) of galangin to the dorsal skin of C57BL/6J nude mice significantly alleviated UVB-induced skin photodamage by promoting TGFβ/Smad collagen synthesis signaling, reducing epidermal hyperplasia, wrinkle formation, and skin senescence, as well as inhibiting hsa-miR-4535 expression. Taken together, our findings indicate a link between hsa-miR-4535 and TGFβ/Smad collagen synthesis signaling and suggest these factors to be involved in the photo-protective mechanism of galangin in dermal fibroblasts against H2O2/UVB-induced aging. The evidence indicated that galangin with anti-aging properties can be considered as a supplement in skin care products.
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microRNA-377-3p inhibits osteosarcoma progression by targeting CUL1 and regulating Wnt/β-catenin signaling pathway. Clin Transl Oncol 2021; 23:2350-2357. [PMID: 34133001 DOI: 10.1007/s12094-021-02633-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 04/29/2021] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Emerging studies highlight the crucial effects of microRNAs on cancer initiation and malignant progression of various tumors. This study focused on the biological effect of miR-377-3p on CUL1 and epithelial-mesenchymal transition (EMT) and Wnt/β-catenin pathways in osteosarcoma (OS). METHODS We performed quantitative real-time polymerase chain reaction (qRT-PCR) to analyze miR-377-3p and CUL1 expression levels in OS tissues and MG-63 cells. Then, cell counting kit (CCK)-8 and Transwell assay were used to examine the functions of miR-377-3p in OS cell growth and metastasis abilities. Meanwhile, luciferase reporter assay was used to validate CUL1 as direct target of miR-377-3p. qRT-PCR and Western blot were then carried out to detect the impact of miR-377-3p on EMT and Wnt/β-catenin pathways. Tumor xenograft models were established to further examine the effects of miR-377-3p on OS tumorigenesis in vivo. RESULTS miR-377-3p downregulation was frequently identified in OS tissues and cells, which was associated with worse prognosis of OS patients. Functional experiments showed miR-377-3p restoration could dramatically repress OS cell growth and migration by regulation of EMT and Wnt/β-catenin pathways. Moreover, luciferase reporter assay revealed that CUL1 acted as a functional target of miR-377-3p. Additionally, the elevated CUL1 expressions in OS tissues also indicated poor prognosis of OS patients. Furthermore, the OS tumor growth was also obviously inhibited by miR-377-3p overexpression in vivo. CONCLUSIONS Collectively, all the above findings revealed that miR-377-3p exerted anti-OS functions via CUL1 and EMT and Wnt/β-catenin pathways. These results may contribute to the development of clinical OS treatment.
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Stojanović SD, Fiedler J, Bauersachs J, Thum T, Sedding DG. Senescence-induced inflammation: an important player and key therapeutic target in atherosclerosis. Eur Heart J 2021; 41:2983-2996. [PMID: 31898722 PMCID: PMC7453834 DOI: 10.1093/eurheartj/ehz919] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 09/13/2019] [Accepted: 12/12/2019] [Indexed: 12/21/2022] Open
Abstract
Inflammation is a hallmark and potent driver of pathological vascular remodelling in atherosclerosis. However, current anti-inflammatory therapeutic strategies have shown mixed results. As an alternative perspective on the conundrum of chronic inflammation emerging evidence points towards a small subset of senescent cells as a critical player and central node driving atherosclerosis. Senescent cells belonging to various cell types are a dominant and chronic source of a large array of pro-inflammatory cytokines and various additional plaque destabilizing factors, being involved with various aspects of atherosclerosis pathogenesis. Antagonizing these key agitators of local chronic inflammation and plaque instability may provide a causative and multi-purpose therapeutic strategy to treat atherosclerosis. Anti-senescence treatment options with translational potential are currently in development. However, several questions and challenges remain to be addressed before these novel treatment approaches may enter the clinical setting.
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Affiliation(s)
- Stevan D Stojanović
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany.,Department of Cardiology and Angiology, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany
| | - Jan Fiedler
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany
| | - Johann Bauersachs
- Department of Cardiology and Angiology, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany
| | - Daniel G Sedding
- Department of Internal Medicine III, Cardiology, Angiology and Intensive Care Medicine, Martin-Luther-University Halle (Saale), Ernst-Grube-Strasse 40, 06120 Halle (Saale), Germany
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15
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Grande V, Hathazi D, O'Connor E, Marteau T, Schara-Schmidt U, Hentschel A, Gourdon G, Nikolenko N, Lochmüller H, Roos A. Dysregulation of GSK3β-Target Proteins in Skin Fibroblasts of Myotonic Dystrophy Type 1 (DM1) Patients. J Neuromuscul Dis 2021; 8:603-619. [PMID: 33682722 DOI: 10.3233/jnd-200558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Myotonic dystrophy type 1 (DM1) is the most common monogenetic muscular disorder of adulthood. This multisystemic disease is caused by CTG repeat expansion in the 3'-untranslated region of the DM1 protein kinase gene called DMPK. DMPK encodes a myosin kinase expressed in skeletal muscle cells and other cellular populations such as smooth muscle cells, neurons and fibroblasts. The resultant expanded (CUG)n RNA transcripts sequester RNA binding factors leading to ubiquitous and persistent splicing deregulation. The accumulation of mutant CUG repeats is linked to increased activity of glycogen synthase kinase 3 beta (GSK3β), a highly conserved and ubiquitous serine/threonine kinase with functions in pathways regulating inflammation, metabolism, oncogenesis, neurogenesis and myogenesis. As GSK3β-inhibition ameliorates defects in myogenesis, muscle strength and myotonia in a DM1 mouse model, this kinase represents a key player of DM1 pathobiochemistry and constitutes a promising therapeutic target. To better characterise DM1 patients, and monitor treatment responses, we aimed to define a set of robust disease and severity markers linked to GSK3βby unbiased proteomic profiling utilizing fibroblasts derived from DM1 patients with low (80- 150) and high (2600- 3600) CTG-repeats. Apart from GSK3β increase, we identified dysregulation of nine proteins (CAPN1, CTNNB1, CTPS1, DNMT1, HDAC2, HNRNPH3, MAP2K2, NR3C1, VDAC2) modulated by GSK3β. In silico-based expression studies confirmed expression in neuronal and skeletal muscle cells and revealed a relatively elevated abundance in fibroblasts. The potential impact of each marker in the myopathology of DM1 is discussed based on respective function to inform potential uses as severity markers or for monitoring GSK3β inhibitor treatment responses.
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Affiliation(s)
- Valentina Grande
- Department of Neuropediatrics, University Hospital Essen, Duisburg-Essen University, Germany
| | - Denisa Hathazi
- Leibniz-Institut für Analytische Wissenschaften -ISAS- e.V., Dortmund, Germany.,Department of Clinical Neurosciences, School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Emily O'Connor
- Childrens Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada
| | - Theo Marteau
- Department of Neuropediatrics, University Hospital Essen, Duisburg-Essen University, Germany
| | - Ulrike Schara-Schmidt
- Department of Neuropediatrics, University Hospital Essen, Duisburg-Essen University, Germany
| | - Andreas Hentschel
- Leibniz-Institut für Analytische Wissenschaften -ISAS- e.V., Dortmund, Germany
| | - Genevieve Gourdon
- Centre de Recherche en Myologie, Association Institut de Myologie, Sorbonne Université, Inserm UMR 974, Paris, France
| | - Nikoletta Nikolenko
- National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London, UK
| | - Hanns Lochmüller
- Childrens Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada.,Division of Neurology, Department of Medicine, The Ottawa Hospital, Ottawa, ON, Canada.,Department of Neuropediatrics and Muscle Disorders, Faculty of Medicine, Medical Center - University of Freiburg, Freiburg, Germany.,Centro Nacional de AnálisisGenómico, Center for Genomic Regulation (CNAG-CRG), Barcelona Institute of Science and Technology (BIST), Barcelona, Catalonia, Spain
| | - Andreas Roos
- Department of Neuropediatrics, University Hospital Essen, Duisburg-Essen University, Germany.,Childrens Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada
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16
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Fernández-Ponce C, Navarro Quiroz R, Díaz Perez A, Aroca Martinez G, Cadena Bonfanti A, Acosta Hoyos A, Gómez Escorcia L, Hernández Agudelo S, Orozco Sánchez C, Villarreal Camacho J, Atencio Ibarra L, Consuegra Machado J, Espinoza Garavito A, García-Cózar F, Navarro Quiroz E. MicroRNAs overexpressed in Crohn's disease and their interactions with mechanisms of epigenetic regulation explain novel aspects of Crohn's disease pathogenesis. Clin Epigenetics 2021; 13:39. [PMID: 33602320 PMCID: PMC7890887 DOI: 10.1186/s13148-021-01022-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 02/02/2021] [Indexed: 12/14/2022] Open
Abstract
Background In this review, we were interested to identify the wide universe of enzymes associated with epigenetic modifications, whose gene expression is regulated by miRNAs with a high relative abundance in Crohn's disease (CD) affected tissues, with the aim to determine their impact in the pathogenesis and evolution of the disease. Methods We used HMDD and Bibliometrix R-package in order to identify the miRNAs overexpressed in CD. The identified enzymes associated with epigenetic mechanisms and post-translational modifications, regulated by miRNAs upregulated in CD, were analyzed using String v11 database. Results We found 190 miRNAs with great abundance in patients with CD, of which 26 miRNAs regulate the gene expression of enzymes known to catalyze epigenetic modifications involved in essentials pathophysiological processes, such as chromatin architecture reorganization, immune response regulation including CD4+ T cells polarization, integrity of gut mucosa, gut microbiota composition and tumorigenesis. Conclusion The integrated analysis of miRNAs with a high relative abundance in patients with CD showed a combined and superimposed gene expression regulation of enzymes associated with relevant epigenetic mechanisms and that could explain, in part, the pathogenesis of CD. Supplementary Information The online version contains supplementary material available at 10.1186/s13148-021-01022-8.
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Affiliation(s)
- Cecilia Fernández-Ponce
- Department of Biomedicine, Biotechnology and Public Health, University of Cadiz, Cadiz, Spain
| | - Roberto Navarro Quiroz
- CMCC-Centro de Matemática, Computação E Cognição, Laboratório do Biología Computacional e Bioinformática-LBCB, Universidade Federal Do ABC, Sao Paulo, 01023, Brazil
| | - Anderson Díaz Perez
- Facultad de Ciencias Básicas y Biomédicas, Universidad Simon Bolivar, 080001, Barranquilla, Colombia.,Universidad Rafael Nuñez, 130001, Cartagena, Colombia
| | - Gustavo Aroca Martinez
- Facultad de Ciencias Básicas y Biomédicas, Universidad Simon Bolivar, 080001, Barranquilla, Colombia.,Department of Nephrology, Clinica de La Costa, 080001, Barranquilla, Colombia
| | - Andrés Cadena Bonfanti
- Facultad de Ciencias Básicas y Biomédicas, Universidad Simon Bolivar, 080001, Barranquilla, Colombia.,Department of Nephrology, Clinica de La Costa, 080001, Barranquilla, Colombia
| | - Antonio Acosta Hoyos
- Facultad de Ciencias Básicas y Biomédicas, Universidad Simon Bolivar, 080001, Barranquilla, Colombia
| | - Lorena Gómez Escorcia
- Facultad de Ciencias Básicas y Biomédicas, Universidad Simon Bolivar, 080001, Barranquilla, Colombia.,Universidad Rafael Nuñez, 130001, Cartagena, Colombia
| | - Sandra Hernández Agudelo
- Facultad de Ciencias Básicas y Biomédicas, Universidad Simon Bolivar, 080001, Barranquilla, Colombia.,Department of Nephrology, Clinica de La Costa, 080001, Barranquilla, Colombia
| | - Christian Orozco Sánchez
- Facultad de Ciencias Básicas y Biomédicas, Universidad Simon Bolivar, 080001, Barranquilla, Colombia
| | | | | | | | - Alberto Espinoza Garavito
- Facultad de Ciencias Básicas y Biomédicas, Universidad Simon Bolivar, 080001, Barranquilla, Colombia
| | - Francisco García-Cózar
- Department of Biomedicine, Biotechnology and Public Health, University of Cadiz, Cadiz, Spain
| | - Elkin Navarro Quiroz
- Facultad de Ciencias Básicas y Biomédicas, Universidad Simon Bolivar, 080001, Barranquilla, Colombia. .,Centro de Investigación E Innovación en Biomoléculas, C4U S.A.S, 080001, Barranquilla, Colombia.
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17
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Yang Z, Duan X, Wang X, Li D, Xu Q, Xiang S, Guo B, He L. The effect of Q-switched 1064-nm dymium-doped yttrium aluminum garnet laser on the skin barrier and collagen synthesis through miR-24-3p. Lasers Med Sci 2021; 37:205-214. [PMID: 33400013 PMCID: PMC8803697 DOI: 10.1007/s10103-020-03214-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/26/2020] [Indexed: 11/26/2022]
Abstract
Due to the increase of the world’s population aging, how to restore youthfulness to the skin has attracted much attention. It is well known that collagen synthesis and changes in skin barrier play an important role in the process of skin aging. However, whether Q-switched 1064-nm Nd:YAG laser (1064-QSNYL) determines the involvement of miRNAs in skin collagen synthesis and skin barrier changes remains to be elucidated. Upstream miRNAs of p38 molecular pathway have been predicted by bioinformatic database and the relationship between miRNAs and p38 verified by dual-luciferase reporter gene and Western blotting. RT-qPCR analysis detected the expression of miR-24-3p and mRNA for collagen and skin barrier–related molecules, such as keratin 10 (K10), filaggrin, and Aquaporin 4 (APQ4), in mice back skin and in the keratinocyte cell line HaCaT. Western blotting and immunofluorescence (IF) have been used to detect collagen expression and to localize, as well as quantify K10, filaggrin, and APQ4, respectively. In this study, we show that p38 is the main target gene of miRNA-24-3p, and laser irradiation at 1.5 J/cm2 inhibits miR-24-3p expression. Irradiation treatment upregulates the moisture, elasticity, hydroxyproline, and superoxide dismutase content of mice skin, as well as inhibits trans-epidermal water loss. Irradiation also increases collagen, K10, filaggrin, and APQ4 in both mice skin and HaCaT cells. Interestingly, we found that miR-24-3p overexpression inhibits the effect of irradiation on collagen synthesis and skin barrier. We show for the first time that 1064-QSNYL promotes collagen synthesis and protective effects on skin barrier by downregulating miR-24-3p.
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Affiliation(s)
- Zhi Yang
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China.
| | - Xiaoxia Duan
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China
| | - Xue Wang
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China
| | - Dongqing Li
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China
| | - Qi Xu
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China
| | - Shunli Xiang
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China
| | - Birun Guo
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China
| | - Li He
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China.
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18
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Lin M, Zheng Y, Li Q, Liu Y, Xu Q, Li Y, Lai W. Circular RNA expression profiles significantly altered in UVA-irradiated human dermal fibroblasts. Exp Ther Med 2020; 20:163. [PMID: 33093901 PMCID: PMC7571319 DOI: 10.3892/etm.2020.9292] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 05/20/2020] [Indexed: 11/20/2022] Open
Abstract
Circular RNAs (circRNAs) have been previously implicated in number of diseases. However, the roles of circRNAs in photoaging remain elusive. In the present study, to understand if photoaging influences the levels of circRNA expression, the expression of circRNAs in ultraviolet A (UVA)-irradiated human dermal fibroblasts were profiled. A total of 128 circRNAs were identified to be differentially expressed (fold change >1.5; P<0.05) after UVA exposure, including 39 upregulated and 89 downregulated circRNAs. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes biological pathway analyses indicated that the differentially expressed circRNAs were associated with extracellular matrix organization and metabolism. The present study revealed an altered circRNA expression pattern in human dermal fibroblasts following UVA-irradiation. These results provide not only a basis for in-depth study of the mechanism of skin photoaging but also a new possibility for the prevention and treatment of photoaging and associated skin diseases.
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Affiliation(s)
- Mengbi Lin
- Department of Dermatology and Venereology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Yue Zheng
- Department of Dermatology and Venereology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Qian Li
- Department of Dermatology and Venereology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Yufang Liu
- Department of Dermatology and Venereology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Qingfang Xu
- Department of Dermatology and Venereology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Yuying Li
- Department of Dermatology and Venereology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Wei Lai
- Department of Dermatology and Venereology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P.R. China
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19
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Russell-Goldman E, Murphy GF. The Pathobiology of Skin Aging: New Insights into an Old Dilemma. THE AMERICAN JOURNAL OF PATHOLOGY 2020; 190:1356-1369. [PMID: 32246919 PMCID: PMC7481755 DOI: 10.1016/j.ajpath.2020.03.007] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 02/19/2020] [Accepted: 03/05/2020] [Indexed: 02/07/2023]
Abstract
Long considered both physiologic and inevitable, skin aging is a degenerative phenomenon whereby both intrinsic and environmental factors conspire to produce an authentic disease. The consequences of this disorder are many and varied, ranging from atrophy and fragility to defective repair to deficient immunity and vulnerability to certain infections. The pathobiologic basis for skin aging remains poorly understood. At a cellular level, stem cell dysfunction and attrition appear to be key events, and both genetic and epigenetic factors are involved in a complex interplay that over time results in deterioration of our main protective interface with the external environment. Past and current understanding of the cellular and molecular intricacies of skin aging provide a foundation for future approaches designed to thwart the aging phenotype. Herein, the authors provide a review of current insights into skin aging, including the mechanisms of skin aging, the role of stem cells in skin aging and the implications of skin aging for the microbiome and for the development of cancer. Conquest of the oft overlooked disease of skin aging should have broad implications that transcend the integument and inform novel approaches to retarding aging and age-related dysfunction in those internal organs that youthful skin was designed to envelop and safeguard.
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Affiliation(s)
- Eleanor Russell-Goldman
- Program in Dermatopathology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - George F Murphy
- Program in Dermatopathology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
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20
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Ma X, Zheng Q, Zhao G, Yuan W, Liu W. Regulation of cellular senescence by microRNAs. Mech Ageing Dev 2020; 189:111264. [PMID: 32450085 DOI: 10.1016/j.mad.2020.111264] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 04/26/2020] [Accepted: 05/15/2020] [Indexed: 12/15/2022]
Abstract
Cellular senescence is mainly characterized as a stable proliferation arrest and a senescence associated secretory phenotype (SASP). Senescence is triggered by diverse stimuli such as telomere shortening, oxidative stress, oncogene activation and DNA damage, and consequently contributes to multiple physiology and pathology outcomes, including embryonic development, wound healing and tumor suppression as well as aging or age-associated diseases. Interestingly, therapeutic clearance of senescent cells in tissues has recently been demonstrated to be beneficial for extending a healthy lifespan and for improving numerous age-related disorders. However the molecular mechanisms of senescence regulation remain partially understood. Theoretically, senescence is tightly regulated by a vast number of molecules, among which the p16 and p53 pathways are the most classical. In addition, intracellular cellular calcium signaling has emerged as a key regulator of senescence. In the last few decades, a growing number of studies have demonstrated that microRNAs (miRNAs, small non-coding RNAs) are strongly implicated in controlling senescence, especially at the transcriptional and post-transcriptional levels. In this review we will discuss the involvement of miRNAs in modulating senescence through the major p16, p53, SASP and calcium signaling pathways, thus aiming to reveal the mechanisms of how miRNAs regulate cellular senescence.
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Affiliation(s)
- Xingjie Ma
- Department of Intensive Care, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China; Department of the Central Laboratory, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou 225000, China
| | - Qingbin Zheng
- Department of Intensive Care, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Guangming Zhao
- Department of Intensive Care, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Wenjie Yuan
- Department of Intensive Care, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Weili Liu
- Department of Intensive Care, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China.
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21
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22
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Deng Z, Wang Y, Shi W, Zhou L, Xu S, Li J, Zhang Y. Haplopelma hainanum venom induces inflammatory skin lesions. PeerJ 2020; 8:e8264. [PMID: 31942253 PMCID: PMC6956770 DOI: 10.7717/peerj.8264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 11/21/2019] [Indexed: 11/20/2022] Open
Abstract
The Haplopelma hainanum is a species of theraphosid spider from China. Its large size and charming appearance make this species a popular pet. According to a previous study, theraphosid spider bites can induce pain, erythema, and edema in humans and can present more severely in domestic animals. The pathological consequences of envenomation by H. hainanum remain unclear. In this study, we investigated the effects and mechanisms of H. hainanum envenomation in mice. We showed that the venom induced slight swelling, intense inflammatory response, and increased the microvascular density in mice skin. Moreover, we found that 50 µg/ml of the spider’s venom induced IL-1β expression in both HaCaT cells and fibroblast cells, but repressed CXCL10 expression in fibroblasts. The venom significantly induced cell senescence and repressed cell proliferation and migration in both HaCaT cells and fibroblast cells. Finally, we examined the expression of Nav channel in HaCaT and fibroblast cells and found that H. hainanum venom effectively inhibited Na+ currents in HaCaT cells. Our study calls for further investigation of the pathological consequences and potential mechanisms of H. hainanum envenomation. This information might assist in the development of suitable therapy.
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Affiliation(s)
- Zhili Deng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Yaling Wang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Wei Shi
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Lei Zhou
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - San Xu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Yiya Zhang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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23
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Todorova K, Mandinova A. Novel approaches for managing aged skin and nonmelanoma skin cancer. Adv Drug Deliv Rev 2020; 153:18-27. [PMID: 32526451 DOI: 10.1016/j.addr.2020.06.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 05/30/2020] [Accepted: 06/04/2020] [Indexed: 12/29/2022]
Abstract
The process of aging influences every bodily organ and tissue, and those with rapid epithelial cell turnover, are particularly affected. The most visible of these, however, is the skin (including the epidermis), the largest human organ that provides a barrier to external insults, structure to the body and its movements, facilitates thermoregulation, harbors immune cells, and incorporates sensory neurons (including mechanoreceptors, nociceptors, and thermoreceptors). Skin aging has traditionally been categorized into intrinsic and extrinsic, with the latter nearly exclusively restricted to "photoaging," (i.e., aging due to exposure to solar or artificial ultraviolet radiation). However, both intrinsic and extrinsic aging share similar causes, including oxidative damage, telomere shortening, and mitochondrial senescence. Also, like other malignancies, the risk of malignant and nonmalignant lesions increases with age. Herein, we review the most recent findings in skin aging and nonmelanoma skin cancer, including addition to traditional and developing therapies.
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24
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New Insights for Cellular and Molecular Mechanisms of Aging and Aging-Related Diseases: Herbal Medicine as Potential Therapeutic Approach. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:4598167. [PMID: 31915506 PMCID: PMC6930799 DOI: 10.1155/2019/4598167] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 09/28/2019] [Accepted: 10/16/2019] [Indexed: 02/07/2023]
Abstract
Aging is a progressive disease affecting around 900 million people worldwide, and in recent years, the mechanism of aging and aging-related diseases has been well studied. Treatments for aging-related diseases have also made progress. For the long-term treatment of aging-related diseases, herbal medicine is particularly suitable for drug discovery. In this review, we discuss cellular and molecular mechanisms of aging and aging-related diseases, including oxidative stress, inflammatory response, autophagy and exosome interactions, mitochondrial injury, and telomerase damage, and summarize commonly used herbals and compounds concerned with the development of aging-related diseases, including Ginkgo biloba, ginseng, Panax notoginseng, Radix astragali, Lycium barbarum, Rhodiola rosea, Angelica sinensis, Ligusticum chuanxiong, resveratrol, curcumin, and flavonoids. We also summarize key randomized controlled trials of herbal medicine for aging-related diseases during the past ten years. Adverse reactions of herbs were also described. It is expected to provide new insights for slowing aging and treating aging-related diseases with herbal medicine.
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25
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Yi Y, Xie H, Xiao X, Wang B, Du R, Liu Y, Li Z, Wang J, Sun L, Deng Z, Li J. Ultraviolet A irradiation induces senescence in human dermal fibroblasts by down-regulating DNMT1 via ZEB1. Aging (Albany NY) 2019; 10:212-228. [PMID: 29466247 PMCID: PMC5842848 DOI: 10.18632/aging.101383] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 02/09/2018] [Indexed: 12/20/2022]
Abstract
In this study, we report the role of DNA methyltransferase 1 (DNMT1) in ultraviolet A (UVA)-induced senescence in human dermal fibroblasts (HDFs). We show that DNMT1 expression was significantly reduced during UVA-induced senescence, and this senescence could be alleviated or aggravated by the up- or down-regulation of DNMT1, respectively. Expression of the transcription factor zinc finger E-box binding homeobox 1(ZEB1) also decreased after UVA irradiation, following a UVA-induced increase of intracellular reactive oxygen species (ROS). We show that ZEB1 binds to the DMNT1 promoter and regulates its transcription, which, in turn, affects cellular senescence. These changes in DMNT1 and ZEB1 expression following UVA exposure were confirmed in matched skin specimens that had or had not been sun-exposed. On analyzing the promoter methylation of 24 senescence associated genes in these matched skin specimens, we discovered that p53 promoter methylation was significantly reduced in sun-exposed skin. In vitro experiments confirmed that UVA irradiation reduced p53 promoter methylation, and DNMT1 up-regulation could reverse this effect. Collectively, down-regulation of ZEB1 caused by UVA induced ROS could transcriptionally inhibit DNMT1, leading to low methylation level of senescence related proteins p53 and increase its expression, eventually result in cellar senescence.
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Affiliation(s)
- Yuxin Yi
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Hongfu Xie
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiao Xiao
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Ben Wang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Rui Du
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Yingzi Liu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Zibo Li
- The State Key Laboratory of Medical Genetics & School of Life Sciences, Central South University, Changsha, China
| | - Jun Wang
- The State Key Laboratory of Medical Genetics & School of Life Sciences, Central South University, Changsha, China
| | - Lunquan Sun
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Zhili Deng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Changsha, China
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Wang S, Li C, Yu Y, Qiao J. Decreased expression of microRNA-145 promotes the biological functions of fibroblasts in hypertrophic scar tissues by upregulating the expression of transcription factor SOX-9. Exp Ther Med 2019; 18:3450-3460. [PMID: 31602220 PMCID: PMC6777315 DOI: 10.3892/etm.2019.7972] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Accepted: 12/08/2017] [Indexed: 12/11/2022] Open
Abstract
The present study aimed to determine the expression of microRNA (miRNA or miR)-145 in hypertrophic scars at the tissue and cellular levels, and to investigate its biological functions and mechanism of action. A total of 36 patients who were diagnosed with hypertrophic scar were included in the present study. Reverse transcription-quantitative polymerase chain reaction was used to determine the expression of miR-145 in tissues and fibroblasts. Primary fibroblasts were transfected with negative control miRNA, miR-145 mimics or inhibitor. A Cell Counting Kit-8 assay was performed to determine the level of proliferation of fibroblasts. Flow cytometry was employed for cell cycles determination and apoptosis in fibroblasts. A Matrigel assay was used to evaluate the invasion ability of fibroblasts. Western blotting was used to determine the expression of the transcription factor SOX-9 (SOX-9) protein in fibroblasts. Rescue experiments were performed to examine the effect of SOX-9 on the regulation of fibroblasts by miR-145. The dual luciferase reporter assay was performed to identify the direct interaction between SOX-9 and miR-145. The expression of miR-145 was reduced in hypertrophic tissues and fibroblasts. Overexpression of miR-145 inhibited the proliferation, G1/S phase transition and invasion of fibroblasts, and promoted the apoptosis of fibroblasts. In addition, overexpression of miR-145 inhibited SOX-9 protein expression. By contrast, the expression of SOX-9 reversed the effects of miR-145 on the proliferation, cell cycle, apoptosis and invasion of fibroblasts. The miR-145 seed region was able to bind with the 3′-untranslated region of the SOX-9 mRNA to regulate its expression. The present study demonstrated that miR-145 expression is reduced in hypertrophic scar tissues and negatively associated with SOX-9 expression. In addition, miR-145 inhibits the proliferation, cell cycle and invasion, and promotes the apoptosis of fibroblasts by down-regulating the expression of SOX-9. The current study provides a potential target for the clinical diagnosis and treatment of hypertrophic scars.
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Affiliation(s)
- Shoujie Wang
- Department of Plastic Surgery, The First Affiliated Hospital, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Caiyun Li
- Department of Plastic Surgery, The First Affiliated Hospital, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Yijia Yu
- Department of Plastic Surgery, The First Affiliated Hospital, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Jianjun Qiao
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
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27
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Li L, van Breugel PC, Loayza-Puch F, Ugalde AP, Korkmaz G, Messika-Gold N, Han R, Lopes R, Barbera EP, Teunissen H, de Wit E, Soares RJ, Nielsen BS, Holmstrøm K, Martínez-Herrera DJ, Huarte M, Louloupi A, Drost J, Elkon R, Agami R. LncRNA-OIS1 regulates DPP4 activation to modulate senescence induced by RAS. Nucleic Acids Res 2019; 46:4213-4227. [PMID: 29481642 PMCID: PMC5934637 DOI: 10.1093/nar/gky087] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 01/29/2018] [Indexed: 12/15/2022] Open
Abstract
Oncogene-induced senescence (OIS), provoked in response to oncogenic activation, is considered an important tumor suppressor mechanism. Long non-coding RNAs (lncRNAs) are transcripts longer than 200 nt without a protein-coding capacity. Functional studies showed that deregulated lncRNA expression promote tumorigenesis and metastasis and that lncRNAs may exhibit tumor-suppressive and oncogenic function. Here, we first identified lncRNAs that were differentially expressed between senescent and non-senescent human fibroblast cells. Using RNA interference, we performed a loss-function screen targeting the differentially expressed lncRNAs, and identified lncRNA-OIS1 (lncRNA#32, AC008063.3 or ENSG00000233397) as a lncRNA required for OIS. Knockdown of lncRNA-OIS1 triggered bypass of senescence, higher proliferation rate, lower abundance of the cell-cycle inhibitor CDKN1A and high expression of cell-cycle-associated genes. Subcellular inspection of lncRNA-OIS1 indicated nuclear and cytosolic localization in both normal culture conditions as well as following oncogene induction. Interestingly, silencing lncRNA-OIS1 diminished the senescent-associated induction of a nearby gene (Dipeptidyl Peptidase 4, DPP4) with established role in tumor suppression. Intriguingly, similar to lncRNA-OIS1, silencing DPP4 caused senescence bypass, and ectopic expression of DPP4 in lncRNA-OIS1 knockdown cells restored the senescent phenotype. Thus, our data indicate that lncRNA-OIS1 links oncogenic induction and senescence with the activation of the tumor suppressor DPP4.
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Affiliation(s)
- Li Li
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Pieter C van Breugel
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Fabricio Loayza-Puch
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Alejandro Pineiro Ugalde
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Gozde Korkmaz
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Naama Messika-Gold
- Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, 69978, Tel Aviv University, Tel Aviv, Israel
| | - Ruiqi Han
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Rui Lopes
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Eric P Barbera
- Division of Molecular Genetics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Hans Teunissen
- Division of Gene Regulation, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Elzo de Wit
- Division of Gene Regulation, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | | | | | - Kim Holmstrøm
- Bioneer A/S, Kogle Allé 2, DK-2970 Hørsholm, Denmark
| | | | - Maite Huarte
- Institute of Health Research of Navarra (IdiSNA), 31008 Pamplona, Spain
| | - Annita Louloupi
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Jarno Drost
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Ran Elkon
- Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, 69978, Tel Aviv University, Tel Aviv, Israel
| | - Reuven Agami
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands.,Erasmus MC, Rotterdam University, 3000 CA Rotterdam, The Netherlands.,Oncode institute, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
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28
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Wang D, Fu CW, Fan DQ. Participation of tumor suppressors long non-coding RNA MEG3, microRNA-377 and PTEN in glioma cell invasion and migration. Pathol Res Pract 2019; 215:152558. [PMID: 31378455 DOI: 10.1016/j.prp.2019.152558] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 07/02/2019] [Accepted: 07/22/2019] [Indexed: 12/11/2022]
Abstract
PURPOSE Glioma is a common and fatal intracranial tumor. Both miR-377 and lncRNA MEG3 are tumor suppressors. This study was performed to investigate the association between miR-377 and lncRNA MEG3 in glioma cells. METHODS U118 and U251 cell lines were incubated in Dulbecco's modified Eagle's medium supplemented with miR-377 mimics, MEG3 siRNA (si-MEG3) and/or MEG3 overexpression plasmids (pc-MEG3) for 48 h. Cell migration, invasion, apoptosis, cell cycle distribution and the expression of E26 tansformation-specific-1 (ETS-1), phosphatase and tensin homologue (PTEN), E-cadherin, N-cadherin and β-catenin were detected. RESULTS MiR-377 mimics increased MEG3 expression and decreased the number of migrated and invaded U118 and U251 cells, without influence on apoptosis in both cell lines. Si-MEG3 transfection increased U118 cell migration and invasion and rescued miR-377 mimics-induced inhibitory in cell migration and invasion. Si-MEG3 decreased U118 cell apoptosis and induced G0/G1 cell cycle arrest, and pc-MEG3 increased U251 cell apoptosis via arresting cell cycle at G2/M phage. MiR-377 mimics and si-MEG3 increased the relative expression level of N-cadherin mRNA, and both si-MEG3 and pc-MEG3 increased E-cadherin in glioma cells. MiR-377 mimics increased ETS-1 mRNA in U118 cells, but decreased it in U251 cells. PTEN was increased by miR-377 mimics and si-MEG3 and decreased by pc-MEG3 in glioma cells. CONCLUSIONS These results suggested the link interaction of MEG3 with miR-377 and PTEN, but not functioning as the competing endogenous RNA. MiR-377 mimics and MEG3 were tumor suppressors in glioma cells through regulating PTEN expression.
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Affiliation(s)
- Dong Wang
- Department of Neurosurgery, Ganzhou People's Hospital, Ganzhou, 341000, China; Department of Central Laboraotory, Fuling Central Hospital of Chongqing City, Chongqing, 408099, China; Second Clinical College, Chongqing Medical University, Chongqing, 400010, China.
| | - Cheng-Wei Fu
- Department of Radiology, Fuling Central Hospital of Chongqing City, Chongqing, 408099, China
| | - De-Qing Fan
- Department of Hepatobiliary Surgery, Fuling Central Hospital of Chongqing City, Chongqing, 408099, China
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29
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30
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Lai WF, Lin M, Wong WT. Tackling Aging by Using miRNA as a Target and a Tool. Trends Mol Med 2019; 25:673-684. [PMID: 31126873 DOI: 10.1016/j.molmed.2019.04.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 04/12/2019] [Accepted: 04/17/2019] [Indexed: 12/15/2022]
Abstract
miRNA is a class of short noncoding RNA that regulates gene expression at the post-transcriptional level. Evidence of age-associated changes in miRNA expression has been collected in models ranging from nematodes to humans; however, there has been little discussion of how to turn our knowledge of miRNA biology into antiaging therapy. This opinion article provides a snapshot of our current understanding of the roles of miRNA in modulating the aging process. We discuss major chemical techniques for modifying the miRNA structure as well as developing delivery systems for intervention. Finally, technical needs to be met for bench-to-clinic translation of miRNA-based interventions are highlighted for future research.
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Affiliation(s)
- Wing-Fu Lai
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China; Health Science Centre, Shenzhen University, Shenzhen, China.
| | - Marie Lin
- Health Science Centre, Shenzhen University, Shenzhen, China
| | - Wing-Tak Wong
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
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31
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Tan J, Hu L, Yang X, Zhang X, Wei C, Lu Q, Chen Z, Li J. miRNA expression profiling uncovers a role of miR-302b-3p in regulating skin fibroblasts senescence. J Cell Biochem 2019; 121:70-80. [PMID: 31074095 DOI: 10.1002/jcb.28862] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 02/13/2019] [Accepted: 02/28/2019] [Indexed: 11/11/2022]
Abstract
Numbers of emerging evidence suggest that variable microRNA (miRNA) expression facilitates the aging process. In this study, we distinguished aberrant miRNA expression in aged skin and explored the biological functions and potential mechanism of upregulated miR-302b-3p. At first, miRNA microarray analysis was examined to explore miRNA expression profiling in the skin of aging mice model by D-galactose (d-gal) injection. We identified 29 aberrant miRNAs in aged mice skin. Next, KEGG enrichment analysis was conducted with DIANA-miPath v3.0, which was revealed that enrichment pathways involved in such processes as extracellular matrix-receptor interaction, MAPK signaling pathway, and mammalian target of rapamycin (mTOR) signaling pathway. The target genes of deregulated miRNAs were predicted from four bioinformatic algorithms (miRDB, Targetscan, miRwalk, and Tarbase). The interaction network of miRNAs and their targets were visualized using Cytoscape software. As a result, we found that some hub genes (including JNK2, AKT1/2/3, PAK7, TRPS1, BCL2L11, and IKZF2) were targeted by 12 potential miRNAs (including miR-302b-3p, miR-291a-5p, miR-139-3p, miR-467c-3p, miR-186-3p, etc.). Subsequently, we identified five upregulated miRNA via quantitative polymerase chain reaction and all of them were confirmed increased significantly in aged skin tissues compared with young control tissues. Among them, high expression of miR-302b-3p was verified in both aged skin tissues and senescence fibroblasts. Furthermore, miR-302b-3p mimic accelerated skin fibroblast senescence and suppressed the longevity-associated gene Sirtuin 1(Sirt1) expression, whereas miR-302b-3p inhibitor could delay skin fibroblast senescence and contribute Sirt1 expression. In addition, we demonstrated that c-Jun N-terminal kinase 2(JNK2) is a direct target of miR-302b-3p by a luciferase reporter assay. An inverse correlation was verified in fibroblasts between miR-302b-3p and JNK2. Most importantly, siRNA JNK2 confirmed that low expression of JNK2 could accelerate fibroblasts senescence. In conclusion, our results indicated that overexpressed miR-302b-3p plays an important biological role in accelerating skin aging process via directly targeting JNK2 gene.
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Affiliation(s)
- Jingyong Tan
- Key Laboratory of Longevity and Aging-Related Diseases, Ministry of Education, Guangxi Medical University, Nanning, China
| | - Longyuan Hu
- Key Laboratory of Longevity and Aging-Related Diseases, Ministry of Education, Guangxi Medical University, Nanning, China
| | - Xin Yang
- Key Laboratory of Longevity and Aging-Related Diseases, Ministry of Education, Guangxi Medical University, Nanning, China
| | - Xin Zhang
- Department of Physiology, Guangxi Medical University, Nanning, China
| | - Canshen Wei
- Department of Orthopedics, Eighth Affiliated Hospital, Guangxi Medical University, Guigang, China
| | - Qing Lu
- Department of Physiology, Guangxi Medical University, Nanning, China
| | - Zhilin Chen
- Department of Orthopedics, Eighth Affiliated Hospital, Guangxi Medical University, Guigang, China
| | - Jing Li
- Key Laboratory of Longevity and Aging-Related Diseases, Ministry of Education, Guangxi Medical University, Nanning, China.,Department of Physiology, Guangxi Medical University, Nanning, China
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32
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Breuls N, Giacomazzi G, Sampaolesi M. (Epi)genetic Modifications in Myogenic Stem Cells: From Novel Insights to Therapeutic Perspectives. Cells 2019; 8:cells8050429. [PMID: 31075875 PMCID: PMC6562881 DOI: 10.3390/cells8050429] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/06/2019] [Accepted: 05/07/2019] [Indexed: 12/17/2022] Open
Abstract
The skeletal muscle is considered to be an ideal target for stem cell therapy as it has an inherent regenerative capacity. Upon injury, the satellite cells, muscle stem cells that reside under the basal lamina of the myofibres, start to differentiate in order to reconstitute the myofibres while maintaining the initial stem cell pool. In recent years, it has become more and more evident that epigenetic mechanisms such as histon modifications, DNA methylations and microRNA modulations play a pivatol role in this differentiation process. By understanding the mechanisms behind myogenesis, researchers are able to use this knowledge to enhance the differentiation and engraftment potential of different muscle stem cells. Besides manipulation on an epigenetic level, recent advances in the field of genome-engineering allow site-specific modifications in the genome of these stem cells. Combining epigenetic control of the stem cell fate with the ability to site-specifically correct mutations or add genes for further cell control, can increase the use of stem cells as treatment of muscular dystrophies drastically. In this review, we will discuss the advances that have been made in genome-engineering and the epigenetic regulation of muscle stem cells and how this knowledge can help to get stem cell therapy to its full potential.
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Affiliation(s)
- Natacha Breuls
- Translational Cardiomyology Lab, Department of Development and Regeneration, Stem Cell Institute Leuven, 3000 KU Leuven, Belgium.
| | - Giorgia Giacomazzi
- Translational Cardiomyology Lab, Department of Development and Regeneration, Stem Cell Institute Leuven, 3000 KU Leuven, Belgium.
| | - Maurilio Sampaolesi
- Translational Cardiomyology Lab, Department of Development and Regeneration, Stem Cell Institute Leuven, 3000 KU Leuven, Belgium.
- Human Anatomy Unit, Department of Public Health, Experimental and Forensic Medicine, and Interuniversity Institute of Myology, University of Pavia, 27100 Pavia, Italy.
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33
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Li H, Petersen S, Garcia Mariscal A, Brakebusch C. Negative Regulation of p53-Induced Senescence by N-WASP Is Crucial for DMBA/TPA-Induced Skin Tumor Formation. Cancer Res 2019; 79:2167-2181. [PMID: 30894371 DOI: 10.1158/0008-5472.can-18-1253] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 09/18/2018] [Accepted: 03/14/2019] [Indexed: 11/16/2022]
Abstract
Mice with a keratinocyte-restricted deletion of the actin polymerization-promoting molecule, N-WASP, display cyclic hair loss and skin inflammation. Here, we showed that these mice were also resistant to 7,12-dimethylbenz(a)anthracene (DMBA)/12-O-tetradecanoylphorbol-13-acetate (TPA)-induced skin tumor formation. This resistance correlated with decreased expression of the senescence regulator, DNMT1, and increased expression of the senescence marker, p16Ink4a, in N-WASP-deficient epidermis. Moreover, primary N-WASP-null keratinocytes displayed a premature senescence phenotype in vitro. Expression and activation of p53, a major inducer of senescence, was not significantly altered in N-WASP-null keratinocytes. However, impairment of p53 function effectively rescued the senescence phenotype, indicating that N-WASP was an inhibitor of p53-induced senescence. Mechanistically, N-WASP regulated senescence by preventing p53-dependent degradation of the H3K9 methyltransferases, G9a/GLP, and the DNA methyltransferase, DNMT1, which both control keratinocyte senescence. This pathway collaborated with other N-WASP-independent, senescence-promoting signaling downstream of p53 and allowed the fine tuning of p53-induced senescence by N-WASP. Collectively, these data reveal N-WASP as an inhibitor of p53-induced senescence, which might be of importance for skin tumor formation and cellular aging of keratinocytes. SIGNIFICANCE: These findings demonstrate that N-WASP regulates p53-dependent senescence in keratinocytes in vitro and in vivo.
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Affiliation(s)
- Hui Li
- University of Copenhagen, Biotech Research and Innovation Centre (BRIC), Copenhagen, Denmark
| | - Simon Petersen
- University of Copenhagen, Biotech Research and Innovation Centre (BRIC), Copenhagen, Denmark
| | - Alberto Garcia Mariscal
- University of Copenhagen, Biotech Research and Innovation Centre (BRIC), Copenhagen, Denmark
| | - Cord Brakebusch
- University of Copenhagen, Biotech Research and Innovation Centre (BRIC), Copenhagen, Denmark.
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34
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Yao Q, Chen Y, Zhou X. The roles of microRNAs in epigenetic regulation. Curr Opin Chem Biol 2019; 51:11-17. [PMID: 30825741 DOI: 10.1016/j.cbpa.2019.01.024] [Citation(s) in RCA: 266] [Impact Index Per Article: 53.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 01/10/2019] [Accepted: 01/25/2019] [Indexed: 12/11/2022]
Abstract
MicroRNAs (miRNAs) are small noncoding RNAs, approximately 18-25 nucleotides in length, now recognized as one of the major regulatory gene families in eukaryotes. Recent advances have been made in understanding the complicated roles of miRNAs in epigenetic regulation. miRNAs, as epigenetic modulators, affect the protein levels of the target mRNAs without modifying the gene sequences. Moreover, miRNAs can also be regulated by epigenetic modifications, including DNA methylation, RNA modification, and histone modifications. The reciprocal actions of miRNAs and epigenetic pathway appear to form a miRNA-epigenetic feedback loop and have an extensive influence on gene expression proliferation. The dysregulation of the miRNA-epigenetic feedback loop interferes with the physiological and pathological processes and contributes to variety of diseases. In this review, we focus on the reciprocal interconnection of miRNAs in epigenetic regulation, with the aim of offering new insights into the epigenetic regulatory mechanism that can be used to combat diseases.
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Affiliation(s)
- Qian Yao
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University, Wuhan 430072, PR China
| | - Yuqi Chen
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University, Wuhan 430072, PR China
| | - Xiang Zhou
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University, Wuhan 430072, PR China.
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35
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Epigenetic Regulation of Skin Cells in Natural Aging and Premature Aging Diseases. Cells 2018; 7:cells7120268. [PMID: 30545089 PMCID: PMC6315602 DOI: 10.3390/cells7120268] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/07/2018] [Accepted: 12/11/2018] [Indexed: 02/06/2023] Open
Abstract
Skin undergoes continuous renewal throughout an individual’s lifetime relying on stem cell functionality. However, a decline of the skin regenerative potential occurs with age. The accumulation of senescent cells over time probably reduces tissue regeneration and contributes to skin aging. Keratinocytes and dermal fibroblasts undergo senescence in response to several intrinsic or extrinsic stresses, including telomere shortening, overproduction of reactive oxygen species, diet, and sunlight exposure. Epigenetic mechanisms directly regulate skin homeostasis and regeneration, but they also mark cell senescence and the natural and pathological aging processes. Progeroid syndromes represent a group of clinical and genetically heterogeneous pathologies characterized by the accelerated aging of various tissues and organs, including skin. Skin cells from progeroid patients display molecular hallmarks that mimic those associated with naturally occurring aging. Thus, investigations on progeroid syndromes strongly contribute to disclose the causal mechanisms that underlie the aging process. In the present review, we discuss the role of epigenetic pathways in skin cell regulation during physiologic and premature aging.
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36
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Chen LY, Xia XD, Zhao ZW, Gong D, Ma XF, Yu XH, Zhang Q, Wang SQ, Dai XY, Zheng XL, Zhang DW, Yin WD, Tang CK. MicroRNA-377 Inhibits Atherosclerosis by Regulating Triglyceride Metabolism Through the DNA Methyltransferase 1 in Apolipoprotein E-Knockout Mice. Circ J 2018; 82:2861-2871. [PMID: 30232292 DOI: 10.1253/circj.cj-18-0410] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Lipoprotein lipase (LPL) plays an important role in triglyceride metabolism. It is translocated across endothelial cells to reach the luminal surface of capillaries by glycosylphosphatidylinositol-anchored high-density lipoprotein binding protein 1 (GPIHBP1), where it hydrolyzes triglycerides in lipoproteins. MicroRNA 377 (miR-377) is highly associated with lipid levels. However, how miR-377 regulates triglyceride metabolism and whether it is involved in the development of atherosclerosis remain largely unexplored. Methods and Results: The clinical examination displayed that miR-377 expression was markedly lower in plasma from patients with hypertriglyceridemia compared with non-hypertriglyceridemic subjects. Bioinformatics analyses and a luciferase reporter assay showed that DNA methyltransferase 1 (DNMT1) was a target gene of miR-377. Moreover, miR-377 increased LPL binding to GPIHBP1 by directly targeting DNMT1 in human umbilical vein endothelial cells (HUVECs) and apolipoprotein E (ApoE)-knockout (KO) mice aorta endothelial cells (MAECs). In vivo, hematoxylin-eosin (H&E), Oil Red O and Masson's trichrome staining showed that ApoE-KO mice treated with miR-377 developed less atherosclerotic plaques, accompanied by reduced plasma triglyceride levels. CONCLUSIONS It is concluded that miR-377 upregulates GPIHBP1 expression, increases the LPL binding to GPIHBP1, and reduces plasma triglyceride levels, likely through targeting DNMT1, inhibiting atherosclerosis in ApoE-KO mice.
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Affiliation(s)
- Ling-Yan Chen
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Medical Research Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China
| | - Xiao-Dan Xia
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Medical Research Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China
| | - Zhen-Wang Zhao
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Medical Research Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China
| | - Duo Gong
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Medical Research Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China
| | - Xiao-Feng Ma
- Department of Internal Medicine-Cardiovascular, Nanhua Hospital, University of South China
| | - Xiao-Hua Yu
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Medical Research Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China
| | - Qiang Zhang
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Medical Research Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China
| | - Si-Qi Wang
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Medical Research Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China
| | - Xiao-Yan Dai
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou, Medical University
| | - Xi-Long Zheng
- Department of Biochemistry and Molecular Biology, Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Health Sciences Center
| | - Da-Wei Zhang
- Department of Pediatrics and Group on the Molecular and Cell Biology of Lipids, University of Alberta
| | - Wei-Dong Yin
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Medical Research Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China
| | - Chao-Ke Tang
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Medical Research Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China
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Caravia XM, Roiz-Valle D, Morán-Álvarez A, López-Otín C. Functional relevance of miRNAs in premature ageing. Mech Ageing Dev 2017; 168:10-19. [PMID: 28502819 DOI: 10.1016/j.mad.2017.05.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 03/30/2017] [Accepted: 05/09/2017] [Indexed: 02/06/2023]
Abstract
Ageing is a complex biological process characterized by the progressive loss of biological fitness due to the accumulation of macromolecular and cellular damage that affects most living organisms. Moreover, ageing is an important risk factor for many pathologies, including cardiovascular diseases, neurological disorders, and cancer. However, the ageing rate can be modulated by genetic, nutritional, and pharmacological factors, highlighting the concept of "ageing plasticity". Progeroid syndromes are a group of rare genetic diseases that resemble many characteristics of physiological ageing. Accordingly, studies on these diseases have been very useful for gaining mechanistic insights in ageing biology. In recent years, a great effort has been made in ageing research and several works have confirmed that geromiRs, the growing subgroup of miRNAs implicated in ageing, are able to modulate organismal lifespan. However, very little is still known about the impact of miRNA in premature ageing. In this review, we will address the functional relevance of this class of small non-coding RNAs in the regulation of the hallmarks of progeroid syndromes. In addition, we will discuss the potential strategies for managing progeria based on geromiR modulation.
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Affiliation(s)
- Xurde M Caravia
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, 33006 Oviedo, Spain
| | - David Roiz-Valle
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, 33006 Oviedo, Spain
| | - Alba Morán-Álvarez
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, 33006 Oviedo, Spain
| | - Carlos López-Otín
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, 33006 Oviedo, Spain; Centro de Investigación Biomédica en Red de Cáncer, Spain.
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