1
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Khor YS, Wong PF. MicroRNAs-associated with FOXO3 in cellular senescence and other stress responses. Biogerontology 2024; 25:23-51. [PMID: 37646881 DOI: 10.1007/s10522-023-10059-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 08/01/2023] [Indexed: 09/01/2023]
Abstract
FOXO3 is a member of the FOXO transcription factor family and is known for regulating cellular survival in response to stress caused by various external and biological stimuli. FOXO3 decides cell fate by modulating cellular senescence, apoptosis and autophagy by transcriptional regulation of genes involved in DNA damage response and oxidative stress resistance. These cellular processes are tightly regulated physiologically, with FOXO3 acting as the hub that integrates signalling networks controlling them. The activity of FOXO3 is influenced by post-translational modifications, altering its subcellular localisation. In addition, FOXO3 can also be regulated directly or indirectly by microRNAs (miRNAs) or vice versa. This review discusses the involvement of various miRNAs in FOXO3-driven cellular responses such as senescence, apoptosis, autophagy, redox and inflammation defence. Given that these responses are linked and influence cell fate, a thorough understanding of the complex regulation by miRNAs would provide key information for developing therapeutic strategy and avoid unintended consequences caused by off-site targeting of FOXO3.
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Affiliation(s)
- Yi-Sheng Khor
- Department of Pharmacology, Faculty of Medicine, Universiti Malaya, 50603, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Pooi-Fong Wong
- Department of Pharmacology, Faculty of Medicine, Universiti Malaya, 50603, Wilayah Persekutuan Kuala Lumpur, Malaysia.
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2
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Cristescu CV, Alain S, Ruță SM. The Role of CMV Infection in Primary Lesions, Development and Clinical Expression of Atherosclerosis. J Clin Med 2022; 11:jcm11133832. [PMID: 35807114 PMCID: PMC9267753 DOI: 10.3390/jcm11133832] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/24/2022] [Accepted: 06/30/2022] [Indexed: 02/01/2023] Open
Abstract
The number of deaths related to cardiovascular disease is increasing every year, despite all available therapies and the aggressive campaigns for lifestyle modification and prevention of risk factors. Atherosclerosis is a complex process underlying cardiovascular disease. Cytomegalovirus (CMV) is often associated to atherosclerosis and its clinical expression such as coronary heart disease, stroke, or peripheral artery disease. CMV infection may promote acute atherosis within placentas from women with preeclampsia and it may also accelerate atherosclerosis in HIV-infected and organ-transplanted patients. This review focuses on the current scientific evidence for the role of CMV infection in the development of acute atherosis and atherosclerosis from placentation throughout life.
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Affiliation(s)
- Carmen Valentina Cristescu
- School of Advanced Studies of the Romanian Academy (SCOSAAR), Romanian Academy, 010071 Bucharest, Romania
- National Center for Cytomegalovirus Research, UMR 1092, 87042 Limoges, France;
- Correspondence:
| | - Sophie Alain
- National Center for Cytomegalovirus Research, UMR 1092, 87042 Limoges, France;
| | - Simona Maria Ruță
- Virology Department, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania;
- Stefan S. Nicolau Institute of Virology, 030304 Bucharest, Romania
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3
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Yu Z, Wang J, Nan F, Shi W, Zhang X, Jiang S, Wang B. Human Cytomegalovirus Induced Aberrant Expression of Non-coding RNAs. Front Microbiol 2022; 13:918213. [PMID: 35770158 PMCID: PMC9234646 DOI: 10.3389/fmicb.2022.918213] [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: 04/12/2022] [Accepted: 05/26/2022] [Indexed: 11/13/2022] Open
Abstract
Human cytomegalovirus (HCMV) is a β-herpesvirus whose genome consists of double stranded linear DNA. HCMV genome can generate non-coding RNAs (ncRNAs) through transcription in its host cells. Besides that, HCMV infection also changes the ncRNAs expression profile of the host cells. ncRNAs play a key role in maintaining the normal physiological activity of cells, and the disorder of ncRNAs expression has numerous adverse effects on cells. However, until now, the relationship between ncRNAs and HCMV-induced adverse effects are not summarized in detail. This review aims to give a systematic summary of the role of HCMV infection in ncRNAs expression while providing insights into the molecular mechanism of unnormal cellular events caused by ncRNAs disorder. ncRNAs disorder induced by HCMV infection is highly associated with cell proliferation, apoptosis, tumorigenesis, and immune regulation, as well as the development of cardiovascular diseases, and the potential role of biomarker. We summarize the studies on HCMV associated ncRNAs disorder and suggest innovative strategies for eliminating the adverse effects caused by HCMV infection.
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Affiliation(s)
- Zhongjie Yu
- Department of Special Medicine, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Jing Wang
- Oral Research Center, Qingdao Municipal Hospital, Qingdao, China
| | - Fulong Nan
- Department of Special Medicine, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Wenyi Shi
- Oral Research Center, Qingdao Municipal Hospital, Qingdao, China
| | - Xianjuan Zhang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Shasha Jiang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Bin Wang
- Department of Special Medicine, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
- *Correspondence: Bin Wang,
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4
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Daei Sorkhabi A, Sarkesh A, Saeedi H, Marofi F, Ghaebi M, Silvestris N, Baradaran B, Brunetti O. The Basis and Advances in Clinical Application of Cytomegalovirus-Specific Cytotoxic T Cell Immunotherapy for Glioblastoma Multiforme. Front Oncol 2022; 12:818447. [PMID: 35515137 PMCID: PMC9062077 DOI: 10.3389/fonc.2022.818447] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 03/24/2022] [Indexed: 01/28/2023] Open
Abstract
A high percentage of malignant gliomas are infected by human cytomegalovirus (HCMV), and the endogenous expression of HCMV genes and their products are found in these tumors. HCMV antigen expression and its implications in gliomagenesis have emerged as a promising target for adoptive cellular immunotherapy (ACT) strategies in glioblastoma multiforme (GB) patients. Since antigen-specific T cells in the tumor microenvironments lack efficient anti-tumor immune response due to the immunosuppressive nature of glioblastoma, CMV-specific ACT relies on in vitro expansion of CMV-specific CD8+ T cells employing immunodominant HCMV antigens. Given the fact that several hurdles remain to be conquered, recent clinical trials have outlined the feasibility of CMV-specific ACT prior to tumor recurrence with minimal adverse effects and a substantial improvement in median overall survival and progression-free survival. This review discusses the role of HCMV in gliomagenesis, disease prognosis, and recent breakthroughs in harnessing HCMV-induced immunogenicity in the GB tumor microenvironment to develop effective CMV-specific ACT.
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Affiliation(s)
- Amin Daei Sorkhabi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Aila Sarkesh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Saeedi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Faroogh Marofi
- Department of Hematology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahnaz Ghaebi
- Cancer Gene Therapy Research Center (CGRC), Zanjan University of Medical Sciences, Zanjan, Iran
| | - Nicola Silvestris
- Medical Oncology Unit, Department of Human Pathology "G. Barresi", University of Messina, Messina, Italy
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Oronzo Brunetti
- Medical Oncology Unit-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Tumori "Giovanni Paolo II" of Bari, Bari, Italy
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5
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Virus-induced FoxO factor facilitates replication of human cytomegalovirus. Arch Virol 2021; 167:109-121. [PMID: 34751815 DOI: 10.1007/s00705-021-05279-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 09/06/2021] [Indexed: 10/19/2022]
Abstract
Recently, it was reported that the forkhead box O (FoxO) transcription factor promotes human cytomegalovirus (HCMV) replication via direct binding to the promoters of the major immediate-early (MIE) genes, but how the FoxO factor impacts HCMV replication remains unknown. Here, it is reported that FoxO1 expression is strongly induced by HCMV infection in cells of fibroblast origin. Suppression of the FoxO1 gene by specific RNA interference significantly inhibited HCMV growth and replication, but viral DNA synthesis was not affected considerably. Interestingly, depletion or overexpression of FoxO1 had a significant effect on the expression of viral early/late transcripts. FoxO1 was found to colocalize with the pUL44 protein subunit of viral replication compartments without direct association with DNA. This study highlights how FoxO enhances HCMV gene transcription and viral replication to promote infection.
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6
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Bister N, Pistono C, Huremagic B, Jolkkonen J, Giugno R, Malm T. Hypoxia and extracellular vesicles: A review on methods, vesicular cargo and functions. J Extracell Vesicles 2020; 10:e12002. [PMID: 33304471 PMCID: PMC7710128 DOI: 10.1002/jev2.12002] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/14/2020] [Accepted: 09/27/2020] [Indexed: 12/18/2022] Open
Abstract
Hypoxia is an essential hallmark of several serious diseases such as cardiovascular and metabolic disorders and cancer. A decline in the tissue oxygen level induces hypoxic responses in cells which strive to adapt to the changed conditions. A failure to adapt to prolonged or severe hypoxia can trigger cell death. While some cell types, such as neurons, are highly vulnerable to hypoxia, cancer cells take advantage of a hypoxic environment to undergo tumour growth, angiogenesis and metastasis. Hypoxia-induced processes trigger complex intercellular communication and there are now indications that extracellular vesicles (EVs) play a fundamental role in these processes. Recent developments in EV isolation and characterization methodology have increased the awareness of the importance of EV purity in functional and cargo studies. Cell death, a hallmark of severe hypoxia, is a known source of intracellular contaminants in isolated EVs. In this review, methodological aspects of studies investigating hypoxia-induced EVs are critically evaluated. Key concerns and gaps in the current knowledge are highlighted and future directions for studies are set. To accelerate and advance research, an in-depth analysis of the functions and cargo of hypoxic EVs, compared to normoxic EVs, is provided with the focus on the altered microRNA contents of the EVs.
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Affiliation(s)
- Nea Bister
- A.I. Virtanen Institute for Molecular SciencesUniversity of Eastern FinlandKuopioFinland
| | - Cristiana Pistono
- A.I. Virtanen Institute for Molecular SciencesUniversity of Eastern FinlandKuopioFinland
| | - Benjamin Huremagic
- Department of Human GeneticsKU LeuvenLeuvenBelgium
- Department of Computer ScienceUniversity of VeronaVeronaItaly
| | - Jukka Jolkkonen
- A.I. Virtanen Institute for Molecular SciencesUniversity of Eastern FinlandKuopioFinland
- Department of NeurologyUniversity of Eastern FinlandInstitute of Clinical MedicineKuopioFinland
| | - Rosalba Giugno
- Department of Computer ScienceUniversity of VeronaVeronaItaly
| | - Tarja Malm
- A.I. Virtanen Institute for Molecular SciencesUniversity of Eastern FinlandKuopioFinland
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7
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Nazari-Shafti TZ, Neuber S, Garcia Duran A, Xu Z, Beltsios E, Seifert M, Falk V, Stamm C. Human mesenchymal stromal cells and derived extracellular vesicles: Translational strategies to increase their proangiogenic potential for the treatment of cardiovascular disease. Stem Cells Transl Med 2020; 9:1558-1569. [PMID: 32761804 PMCID: PMC7695640 DOI: 10.1002/sctm.19-0432] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 05/14/2020] [Accepted: 05/18/2020] [Indexed: 12/15/2022] Open
Abstract
Mesenchymal stromal cells (MSCs) offer great potential for the treatment of cardiovascular diseases (CVDs) such as myocardial infarction and heart failure. Studies have revealed that the efficacy of MSCs is mainly attributed to their capacity to secrete numerous trophic factors that promote angiogenesis, inhibit apoptosis, and modulate the immune response. There is growing evidence that MSC‐derived extracellular vesicles (EVs) containing a cargo of lipids, proteins, metabolites, and RNAs play a key role in this paracrine mechanism. In particular, encapsulated microRNAs have been identified as important positive regulators of angiogenesis in pathological settings of insufficient blood supply to the heart, thus opening a new path for the treatment of CVD. In the present review, we discuss the current knowledge related to the proangiogenic potential of MSCs and MSC‐derived EVs as well as methods to enhance their biological activities for improved cardiac tissue repair. Increasing our understanding of mechanisms supporting angiogenesis will help optimize future approaches to CVD intervention.
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Affiliation(s)
- Timo Z Nazari-Shafti
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany.,German Centre for Cardiovascular Research, Partner Site Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Sebastian Neuber
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany.,German Centre for Cardiovascular Research, Partner Site Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Ana Garcia Duran
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Berlin-Brandenburg School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Zhiyi Xu
- Berlin Institute of Health Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Eleftherios Beltsios
- Berlin Institute of Health Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Martina Seifert
- Berlin Institute of Health Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Institute of Medical Immunology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt- Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Volkmar Falk
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany.,German Centre for Cardiovascular Research, Partner Site Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Division of Cardiovascular Surgery, University of Zurich, Zurich, Switzerland
| | - Christof Stamm
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany.,German Centre for Cardiovascular Research, Partner Site Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
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8
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Li D, Li B, Yang L, Wang J. Human cytomegalovirus infection is correlated with atherosclerotic plaque vulnerability in carotid artery. J Gene Med 2020; 22:e3236. [PMID: 32468600 DOI: 10.1002/jgm.3236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 05/23/2020] [Accepted: 05/26/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Several studies have suggested that human cytomegalovirus (CMV) infection is closely related to the pathogenesis of atherosclerosis. The present study aimed to investigate the association between human CMV infection and carotid atherosclerotic plaque vulnerability in a Chinese population. METHODS In total, 42 patients with carotid atherosclerosis (observation group) and 30 healthy volunteers (control group) were recruited in our study from October 2016 to January 2018. Statistical analysis was carried out to calculate the infection rate of CMV in subjects. Spearman's rank analysis was performed to evaluate the correlation between CMV infection and atherosclerotic plaque vulnerability. RESULTS The positive rate of CMV was significantly higher in the observation group compared to the control group, and matrix metalloproteinase 9 (MMP-9), tumor necrosis factor-α (TNF-α) and lectin-like oxidized low density lipoprotein receptor-1 (LOX-1) expression levels were also elevated in the observation group compared to those in the control group. In carotid atherosclerotic patients, the detection rate of unstable plaques and the Crouse scores in vulnerable plaque were significantly higher in the CMV-positive group compared to those in the CMV-negative group. As revealed by correlation analysis, CMV infection was significantly positively correlated with plaque vulnerability and expression levels of MMP-9, TNF-α and LOX-1 in carotid atherosclerotic patients. CONCLUSIONS Human CMV infection might be a potential risk factor for increased plaque vulnerability in patients with carotid atherosclerosis.
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Affiliation(s)
- Dan Li
- Department of Neurology, Beijing Hepingli Hospital, Beijing, China
| | - Bo Li
- Department of Neurology, Beijing Hepingli Hospital, Beijing, China
| | - Ling Yang
- Medical Research Centre, Beijing Tongren Hospital Affiliated to Capital Medical University, Beijing, China
| | - Jiawei Wang
- Medical Research Centre, Beijing Tongren Hospital Affiliated to Capital Medical University, Beijing, China
- Department of Neurology, Beijing Tongren Hospital Affiliated to Capital Medical University, Beijing, China
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9
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Zhu W, Liu S. The role of human cytomegalovirus in atherosclerosis: a systematic review. Acta Biochim Biophys Sin (Shanghai) 2020; 52:339-353. [PMID: 32253424 DOI: 10.1093/abbs/gmaa005] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 11/05/2019] [Accepted: 01/20/2020] [Indexed: 12/11/2022] Open
Abstract
Atherosclerosis is a progressive vascular disease with increasing morbidity and mortality year by year in modern society. Human cytomegalovirus (HCMV) infection is closely associated with the development of atherosclerosis. HCMV infection may accelerate graft atherosclerosis and the development of transplant vasculopathy in organ transplantation. However, our current understanding of HCMV-associated atherosclerosis remains limited and is mainly based on clinical observations. The underlying mechanism of the involvement of HCMV infection in atherogenesis remains unclear. Here, we summarized current knowledge regarding the multiple influences of HCMV on a diverse range of infected cells, including vascular endothelial cells, vascular smooth muscle cells, monocytes, macrophages, and T cells. In addition, we described potential HCMV-induced molecular mechanisms, such as oxidative stress, endoplasmic reticulum stress, autophagy, lipid metabolism, and miRNA regulation, which are involved in the development of HCMV-associated atherogenesis. Gaining an improved understanding of these mechanisms will facilitate the development of novel and effective therapeutic strategies for the treatment of HCMV-related cardiovascular disease.
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Affiliation(s)
- Wenbo Zhu
- Clinical Research Institute, First Affiliated Hospital, University of South China, Hengyang 421001, China
| | - Shuangquan Liu
- Clinical Laboratory, First Affiliated Hospital, University of South China, Hengyang 421001, China
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10
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Edatt L, Poyyakkara A, Raji GR, Ramachandran V, Shankar SS, Kumar VBS. Role of Sirtuins in Tumor Angiogenesis. Front Oncol 2020; 9:1516. [PMID: 32010617 PMCID: PMC6978795 DOI: 10.3389/fonc.2019.01516] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 12/16/2019] [Indexed: 12/11/2022] Open
Abstract
Generally, changes in the metabolic status of cells under conditions like hypoxia and accumulation of lactate can be sensed by various sensing mechanisms, leading to modulation of a number of signal transduction pathways and transcription factors. Several of the proangiogenic cytokines like VEGF, FGF, PDGF, TGF-β, Ang-2, ILs, etc. are secreted by cancer cells, under hypoxic microenvironment. These cytokines bind to their receptors on the endothelial cells and activates a number of signaling pathways including Akt/PIP3, Src, p38/MAPK, Smad2/3, etc., which ultimately results in the proliferation and migration of endothelial cells. Transcription factors that are activated in response to the metabolic status of tumors include HIFs, NF-κb, p53, El-2, and FOXO. Many of these transcription factors has been reported to be regulated by a class of histone deacetylase called sirtuins. Sirtuins are NAD+ dependent histone deacetylases that play pivotal role in the regulation of tumor cell metabolism, proliferation, migration and angiogenesis. The major function of sirtuins include, deacetylation of histones as well as some non-histone proteins like NF-κB, FOXOs, PPAR⋎, PGC1-α, enzymes like acetyl coenzymeA and structural proteins like α tubulin. In the cell, sirtuins are generally considered as the redox sensors and their activities are dependent on the metabolic status of the cell. Understanding the intricate regulatory mechanisms adopted by sirtuins, is crucial in devising effective therapeutic strategies against angiogenesis, metastasis and tumor progression. Keeping this in mind, the present review focuses on the role of sirtuins in the process of tumor angiogenesis and the regulatory mechanisms employed by them.
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Affiliation(s)
| | | | | | | | | | - V. B. Sameer Kumar
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Kasaragod, India
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11
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Huang B, Sun X, Xu A. MiR-217 inhibition relieves oxidative stress-induced melanocyte damage by targeting sirtuin 1. BIOTECHNOL BIOTEC EQ 2020. [DOI: 10.1080/13102818.2020.1727773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Affiliation(s)
- Bo Huang
- Department of Dermatology, Third People’s Hospital of Hangzhou, Hangzhou Institute of Dermatology and Venereology, PR China
| | - Xuecheng Sun
- Department of Dermatology, Third People’s Hospital of Hangzhou, Hangzhou Institute of Dermatology and Venereology, PR China
| | - Aie Xu
- Department of Dermatology, Third People’s Hospital of Hangzhou, Hangzhou Institute of Dermatology and Venereology, PR China
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12
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Lin CJ, Lan YM, Ou MQ, Ji LQ, Lin SD. Expression of miR-217 and HIF-1α/VEGF pathway in patients with diabetic foot ulcer and its effect on angiogenesis of diabetic foot ulcer rats. J Endocrinol Invest 2019; 42:1307-1317. [PMID: 31079353 DOI: 10.1007/s40618-019-01053-2] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 04/30/2019] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To investigate the expression of miR-217 and HIF-1α/VEGF pathway in patients with diabetic foot ulcer (DFU) and its effect on angiogenesis in DFU rats. METHODS The serum levels of miR-217, HIF-1α and VEGF were detected in DFU and simple diabetes mellitus (DM) patients, and healthy controls. DFU rat models were established and treated with miR-217 inhibitors and/or HIF-1α siRNA. The ulcer healing of DFU rats was observed. Besides, ELISA method was performed to detect the serum level of HIF-1α, VEGF and inflammatory factors, immunohistochemical (IHC) method to test the micro-vessel density (MVD), as well as qRT-PCR and Western blot to determine expressions of miR-217, HIF-1α, VEGF, VEGFR2, eNOS, MMP-2, and MMP-9 in tissues. RESULTS The serum levels of miR-217 were up-regulated while HIF-1α and VEGF were down-regulated in DFU patients and rats when compared with DM and healthy controls (all P < 0.05). Dual-luciferase reporter gene assay confirmed that HIF-1α was the direct target gene of miR-217. DFU rats treated with miR-217 inhibitors had decreased foot ulcer area and accelerated ulcer healing, with significantly reduced inflammatory factors (IL-1β, TNF-α and IL-6), as well as elevated HIF-1α and VEGF (all P < 0.05); meanwhile, they remarkably increased the MVD in foot dorsum wound tissues and the protein expressions of HIF-1α, VEGF, VEGFR2, eNOS, MMP-2, and MMP-9 (all P < 0.05). CONCLUSION Inhibiting miR-217 could up-regulate HIF-1α/VEGF pathway to promote angiogenesis and ameliorate inflammation of DFU rats, thereby effectively advancing the healing of ulcerated area.
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Affiliation(s)
- C-J Lin
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Shantou University Medical College, No. 57, Changping Road, Shantou, 515041, Guangdong, People's Republic of China.
| | - Y-M Lan
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Shantou University Medical College, No. 57, Changping Road, Shantou, 515041, Guangdong, People's Republic of China
| | - M-Q Ou
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Shantou University Medical College, No. 57, Changping Road, Shantou, 515041, Guangdong, People's Republic of China
| | - L-Q Ji
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Shantou University Medical College, No. 57, Changping Road, Shantou, 515041, Guangdong, People's Republic of China
| | - S-D Lin
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Shantou University Medical College, No. 57, Changping Road, Shantou, 515041, Guangdong, People's Republic of China
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13
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Zhou Z, Zhang H, Deng T, Ning T, Liu R, Liu D, Bai M, Ying G, Ba Y. Exosomes Carrying MicroRNA-155 Target Forkhead Box O3 of Endothelial Cells and Promote Angiogenesis in Gastric Cancer. MOLECULAR THERAPY-ONCOLYTICS 2019; 15:223-233. [PMID: 31828217 PMCID: PMC6889542 DOI: 10.1016/j.omto.2019.10.006] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 10/22/2019] [Indexed: 02/07/2023]
Abstract
Gastric cancer (GC) has a poor prognosis due to its relentless proliferation and metastasis. One of the reasons for this plight is the formidable angiogenesis ability of GC. Considering the important role of cancer exosomes as carriers and communicators in the tumor microenvironment, we explored the role of exosome-microRNA (miRNA) in regulating angiogenesis. Western blotting and quantitative real-time PCR were used to measure the protein and mRNA levels of the miRNA target gene. To detect changes in cellular biological functions, we pretreated human umbilical vein endothelial cells (HUVECs) that were severally cocultured with GC-derived exosomes and transfected them with different miRNAs directly. Also, we used the mouse xenograft model to verify the effect of miR-155 on angiogenesis of GC tissues in vivo. Our study confirmed that miR-155, as a driver of angiogenesis, encapsulated by exosomes from GC can enhance the generation of new vessels for GC in vitro through inhibiting the expression of Forkhead box O3 (FOXO3a) protein, which led to the progression of GC. Therefore, miR-155 is probable to become a potential biomarker for the detection of migration and angiogenesis of GC, and serves as a novel target for anti-angiogenesis therapy.
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Affiliation(s)
- Zhengyang Zhou
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Haiyang Zhang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Ting Deng
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Tao Ning
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Rui Liu
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Dongying Liu
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Ming Bai
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Guoguang Ying
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Yi Ba
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
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14
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Sun Z, Li M, Bai L, Fu J, Lu J, Wu M, Zhou C, Zhang Y, Wu Y. Arsenic trioxide inhibits angiogenesis in vitro and in vivo by upregulating FoxO3a. Toxicol Lett 2019; 315:1-8. [PMID: 31421153 DOI: 10.1016/j.toxlet.2019.08.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 07/10/2019] [Accepted: 08/13/2019] [Indexed: 02/07/2023]
Abstract
Arsenic trioxide (As2O3) has been used clinically for the treatment of acute promyelocytic leukemia and some solid tumors. However, the mechanisms of its anti-tumor effects are still elusive. Angiogenesis is a key process for tumor initiation, and increasing evidence has supported the role of anti-angiogenesis caused by arsenic in tumor suppression, although the detailed mechanism is not well understood. In the present study, we found that As2O3 significantly inhibited the angiogenesis of human umbilical vein endothelial cells (HUVECs) in vitro, and this was mediated by the upregulation of FoxO3a. Knockdown of FoxO3a could restore the angiogenic ability of HUVECs. Moreover, vascular endothelial cell-specific knockout of FoxO3a in mice could disrupt the anti-angiogenesis effect of As2O3 and endow the tumors with resistance to As2O3 treatments. Our results revealed a new mechanism by which As2O3 suppresses angiogenesis and tumor growth.
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Affiliation(s)
- Zhuo Sun
- Department of Pathology, Laboratory of Clinical and Experimental Pathology, Xuzhou Medical University, No. 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Mingyan Li
- Department of Pathology, Laboratory of Clinical and Experimental Pathology, Xuzhou Medical University, No. 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Lu Bai
- Department of Pathology, Laboratory of Clinical and Experimental Pathology, Xuzhou Medical University, No. 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Jiaju Fu
- Department of Pathology, Laboratory of Clinical and Experimental Pathology, Xuzhou Medical University, No. 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Jinqi Lu
- Department of Pathology, Laboratory of Clinical and Experimental Pathology, Xuzhou Medical University, No. 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Muyu Wu
- Department of Pathology, Laboratory of Clinical and Experimental Pathology, Xuzhou Medical University, No. 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Chen Zhou
- Department of Pathology, Laboratory of Clinical and Experimental Pathology, Xuzhou Medical University, No. 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Ying Zhang
- Department of Pathology, Laboratory of Clinical and Experimental Pathology, Xuzhou Medical University, No. 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Yongping Wu
- Department of Pathology, Laboratory of Clinical and Experimental Pathology, Xuzhou Medical University, No. 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China.
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15
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Yu J, Peng J, Luan Z, Zheng F, Su W. MicroRNAs as a Novel Tool in the Diagnosis of Liver Lipid Dysregulation and Fatty Liver Disease. Molecules 2019; 24:molecules24020230. [PMID: 30634538 PMCID: PMC6358728 DOI: 10.3390/molecules24020230] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 12/23/2018] [Accepted: 12/24/2018] [Indexed: 02/07/2023] Open
Abstract
In recent years, metabolic disorder, especially fatty liver disease, has been considered a major challenge to global health. The attention of researchers focused on expanding knowledge of the regulation mechanism behind these diseases and towards the new diagnostics tools and treatments. The pathophysiology of the fatty liver disease is undoubtedly complex. Abnormal hepatic lipid accumulation is a major symptom of most metabolic diseases. Therefore, the identification of novel regulation factors of lipid metabolism is important and meaningful. As a new diagnostic tool, the function of microRNAs during fatty liver disease has recently come into notice in biological research. Accumulating evidence supports the influence of miRNAs in lipid metabolism. In this review, we discuss the potential role of miRNAs in liver lipid metabolism and the pathogenesis of fatty liver disease.
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Affiliation(s)
- Jingwei Yu
- Shenzhen University Medical Center, Shenzhen University Health Science Center, Shenzhen 518060, China.
- Department of Biology, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Jun Peng
- Shenzhen University Medical Center, Shenzhen University Health Science Center, Shenzhen 518060, China.
| | - Zhilin Luan
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, Liaoning 116044, China.
| | - Feng Zheng
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, Liaoning 116044, China.
| | - Wen Su
- Shenzhen University Medical Center, Shenzhen University Health Science Center, Shenzhen 518060, China.
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16
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Kräter M, Sapudom J, Bilz NC, Pompe T, Guck J, Claus C. Alterations in Cell Mechanics by Actin Cytoskeletal Changes Correlate with Strain-Specific Rubella Virus Phenotypes for Cell Migration and Induction of Apoptosis. Cells 2018; 7:E136. [PMID: 30217036 PMCID: PMC6162683 DOI: 10.3390/cells7090136] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 09/07/2018] [Accepted: 09/10/2018] [Indexed: 02/06/2023] Open
Abstract
The cellular cytoskeleton is central for key cellular functions, and as such is a marker for diseased and infected cell states. Here we analyzed infection with rubella virus (RV) strains with respect to phenotypes in cellular mechanical properties, cell movement, and viral cytopathogenicity. Real-time deformability cytometry (RT-DC), as a high-throughput platform for the assessment of cell mechanics, revealed a correlation of an increase in cortical filamentous-actin (F-actin) with a higher cellular stiffness. The additional reduction of stress fibers noted for only some RV strains as the most severe actin rearrangement lowered cell stiffness. Furthermore, a reduced collective and single cell migration speed in a wound healing assay was detected in addition to severe changes in cell morphology. The latter was followed by activation of caspase 3/7 as a sign for induction of apoptosis. Our study emphasizes RT-DC technology as a sensitive means to characterize viral cell populations and to implicate alterations of cell mechanical properties with cell functions. These interdependent events are not only promising options to elucidate viral spread and to understand viral pathologies within the infected host. They also contribute to any diseased cell state, as exemplified by RV as a representative agent for cytoskeletal alterations involved in a cytopathological outcome.
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Affiliation(s)
- Martin Kräter
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, 01307 Dresden, Germany.
| | - Jiranuwat Sapudom
- Institute of Biochemistry, Leipzig University, 04103 Leipzig, Germany.
- Department of Dermatology, Venerology and Allergology, University Clinic of Leipzig, 04103 Leipzig, Germany.
| | | | - Tilo Pompe
- Institute of Biochemistry, Leipzig University, 04103 Leipzig, Germany.
| | - Jochen Guck
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, 01307 Dresden, Germany.
| | - Claudia Claus
- Institute of Virology, University of Leipzig, 04103 Leipzig, Germany.
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17
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Deshpande S, Abdollahi M, Wang M, Lanting L, Kato M, Natarajan R. Reduced Autophagy by a microRNA-mediated Signaling Cascade in Diabetes-induced Renal Glomerular Hypertrophy. Sci Rep 2018; 8:6954. [PMID: 29725042 PMCID: PMC5934412 DOI: 10.1038/s41598-018-25295-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 04/18/2018] [Indexed: 12/12/2022] Open
Abstract
Autophagy plays a key role in the pathogenesis of kidney diseases, however its role in diabetic nephropathy (DN), and particularly in kidney glomerular mesangial cells (MCs) is not very clear. Transforming Growth Factor- β1 (TGF-β), a key player in the pathogenesis of DN, regulates expression of various microRNAs (miRNAs), some of which are known to regulate the expression of autophagy genes. Here we demonstrate that miR-192, induced by TGF-β signaling, plays an important role in regulating autophagy in DN. The expression of key autophagy genes was decreased in kidneys of streptozotocin-injected type-1 and type-2 (db/db) diabetic mice and this was reversed by treatment with Locked Nucleic Acid (LNA) modified miR-192 inhibitors. Changes in autophagy gene expression were also attenuated in kidneys of diabetic miR-192-KO mice. In vitro studies using mouse glomerular mesangial cells (MMCs) also showed a decrease in autophagy gene expression with TGF-β treatment. miR-192 mimic oligonucleotides also decreased the expression of certain autophagy genes. These results demonstrate that TGF-β and miR-192 decrease autophagy in MMCs under diabetic conditions and this can be reversed by inhibition or deletion of miR-192, further supporting miR-192 as a useful therapeutic target for DN.
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Affiliation(s)
- Supriya Deshpande
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute and Beckman Research Institute of City of Hope, Duarte, California, 91010, USA
| | - Maryam Abdollahi
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute and Beckman Research Institute of City of Hope, Duarte, California, 91010, USA
| | - Mei Wang
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute and Beckman Research Institute of City of Hope, Duarte, California, 91010, USA
| | - Linda Lanting
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute and Beckman Research Institute of City of Hope, Duarte, California, 91010, USA
| | - Mitsuo Kato
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute and Beckman Research Institute of City of Hope, Duarte, California, 91010, USA.
| | - Rama Natarajan
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute and Beckman Research Institute of City of Hope, Duarte, California, 91010, USA.
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18
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Yu X, Zheng H, Chan MTV, Wu WKK. NOVA1 acts as an oncogene in melanoma via regulating FOXO3a expression. J Cell Mol Med 2018; 22:2622-2630. [PMID: 29498217 PMCID: PMC5908123 DOI: 10.1111/jcmm.13527] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 11/29/2017] [Indexed: 12/13/2022] Open
Abstract
Increasing studies have suggested that dysregulation of RNA‐binding proteins (RBPs) contributes to cancer progression. Neuro‐oncological ventral antigen 1 (NOVA1) is a novel RBP and plays an important role in tumour development. However, the expression and role of NOVA1 in melanoma remain unknown. In this study, we indicated that NOVA1 expression was up‐regulated in melanoma samples and cell lines. Moreover, we demonstrated that knockdown of NOVA1 suppressed melanoma cell proliferation, migration and invasion in both A375 and A875 cell lines. In addition, we showed that suppressed expression of NOVA1 enhanced forkhead box O3a (FOXO3a) expression while inhibited AKT expression in melanoma cell. Furthermore, we demonstrated that inhibited expression of FoxO3A rescued NOVA1‐mediated cell proliferation, migration and invasion in melanoma cell line A375. These results suggested that NOVA1 acted as an oncogene in the development of melanoma partly through regulating FoxO3A expression.
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Affiliation(s)
- Xin Yu
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Heyi Zheng
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Matthew T V Chan
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong City, Hong Kong
| | - William K K Wu
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong City, Hong Kong.,State Key Laboratory of Digestive Disease, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong City, Hong Kong
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19
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Sruthi TV, Edatt L, Raji GR, Kunhiraman H, Shankar SS, Shankar V, Ramachandran V, Poyyakkara A, Kumar SVB. Horizontal transfer of miR-23a from hypoxic tumor cell colonies can induce angiogenesis. J Cell Physiol 2017; 233:3498-3514. [PMID: 28929578 DOI: 10.1002/jcp.26202] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Accepted: 09/14/2017] [Indexed: 12/16/2022]
Abstract
Neo vessel formation by angiogenesis is an important event during many pathological conditions including cancer, where it is indispensable for tumor growth and survival. Although, various pro-angiogenic cytokines and soluble factors, secreted by tumor cells, have been reported to promote angiogenesis, recent studies have shown regulatory role of exosomes, secreted by tumor cells in the process of angiogenesis. These exosomes are capable of carrying nucleic acids, proteins, etc., as their cargo. Under the light of these facts and considering the presence of miRNAs, the non-coding RNAs capable of regulating target gene expression, as one of the major cargos in the exosomes, we investigated, whether exosomes derived from normoxic and hypoxic tumor cell colonies exhibit difference in levels of miR-23∼27∼24 cluster members and if so, to check the significance of their horizontal transfer on the process of angiogenesis. Results of our study showed that exosomes secreted by hypoxic tumor cell colonies possess significantly higher levels of miR23a and can induce angiogenesis. Further, we have shown that exosomes secreted by cells that ectopically over express miR23a is capable of inducing angiogenesis in different angiogenic model systems such as CAM, in ovo Xenograft and HUVEC models systems. Further, mechanistic analysis revealed that miR23a driven regulation of angiogenesis is brought about by down regulation of SIRT1 in the recipient cells. Collectively, the results presented here suggest that exosomal transfer of miR23a from tumor cell colonies can induce the process of angiogenesis by targeting SIRT1 in the recipient endothelial cells.
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Affiliation(s)
- T V Sruthi
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Nileshwar, Kasargod, Kerala, India
| | - Lincy Edatt
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Nileshwar, Kasargod, Kerala, India
| | - Grace R Raji
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Nileshwar, Kasargod, Kerala, India
| | - Haritha Kunhiraman
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Nileshwar, Kasargod, Kerala, India
| | - Sharath S Shankar
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Nileshwar, Kasargod, Kerala, India.,Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology, CSIR, Trivandrum, Kerala, India
| | - Vandana Shankar
- Agroprocessing and Technology Division, National Institute for Interdisciplinary Science and Technology, CSIR, Trivandrum, Kerala, India
| | - Vishnu Ramachandran
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Nileshwar, Kasargod, Kerala, India
| | - Aswini Poyyakkara
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Nileshwar, Kasargod, Kerala, India
| | - Sameer V B Kumar
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Nileshwar, Kasargod, Kerala, India
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20
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Duan H, Li Y, Yan L, Yang H, Wu J, Qian P, Li B, Wang S. MicroRNA-217 suppresses homocysteine-induced proliferation and migration of vascular smooth muscle cells via N-methyl-D-aspartic acid receptor inhibition. Clin Exp Pharmacol Physiol 2017; 43:967-75. [PMID: 27333430 DOI: 10.1111/1440-1681.12611] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 05/10/2016] [Accepted: 06/20/2016] [Indexed: 11/29/2022]
Abstract
Hyperhomocysteine has become a critical risk for atherosclerosis and can stimulate proliferation and migration of vascular smooth muscle cells (VSMCs). N-methyl-D-aspartic acid receptor (NMDAR) is a receptor of homocysteine and mediates the effects of homocysteine on VSMCs. Bioinformatics analysis has shown NMDAR is a potential target of microRNA-217 (miR-217), which exerts multiple functions in cancer tumorigenesis and carotid plaque progression. In this study, we sought to investigate the role of miR-217 in VSMCs phenotype transition under homocysteine exposure and elucidate its effect on atherosclerotic plaque formation. After treating with several doses of homocysteine (0-8 × 10(-4) mol/L) for 24 hours, the expression of miR-217 in HA-VSMCs and rat aortic VSMCs was not altered. Intriguingly, the expression of NMDAR mRNA and protein was reduced by homocysteine in a dose-dependent manner. Transfection of miR-217 mimic significantly inhibited the proliferation and migration of VSMCs with homocysteine treatment, while transfection of miR-217 inhibitor promoted VSMCs migration. Moreover, miR-217 mimic down-regulated while miR-217 inhibitor up-regulated NMDAR protein expression but not NMDAR mRNA expression. Through luciferase reporter assay, we showed that miR-217 could directly bind to the 3'-UTR of NMDAR. MiR-217 mimic transfection also released the inhibition of cAMP-response element-binding protein (CREB)-PGC-1α signalling induced by homocysteine. Additionally, restoration of PGC-1α expression via AdPGC-1α infection markedly suppressed VSMCs proliferation through the degradation of NADPH oxidase (NOX1) and reduction of reactive oxygen species (ROS). Collectively, our study identified the role of miR-217 in regulating VSMCs proliferation and migration, which might serve as a target for atherosclerosis therapy.
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Affiliation(s)
- Hongyan Duan
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, China
| | - Yongqiang Li
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, China
| | - Lijie Yan
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, China
| | - Haitao Yang
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, China
| | - Jintao Wu
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, China
| | - Peng Qian
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, China
| | - Bing Li
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, China
| | - Shanling Wang
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, China
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21
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miR-138 promotes migration and tube formation of human cytomegalovirus-infected endothelial cells through the SIRT1/p-STAT3 pathway. Arch Virol 2017; 162:2695-2704. [DOI: 10.1007/s00705-017-3423-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 05/16/2017] [Indexed: 10/19/2022]
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22
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Urbánek P, Klotz L. Posttranscriptional regulation of FOXO expression: microRNAs and beyond. Br J Pharmacol 2017; 174:1514-1532. [PMID: 26920226 PMCID: PMC5446586 DOI: 10.1111/bph.13471] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 02/18/2016] [Accepted: 02/23/2016] [Indexed: 01/17/2023] Open
Abstract
Forkhead box, class O (FOXO) transcription factors are major regulators of diverse cellular processes, including fuel metabolism, oxidative stress response and redox signalling, cell cycle progression and apoptosis. Their activities are controlled by multiple posttranslational modifications and nuclear-cytoplasmic shuttling. Recently, post-transcriptional regulation of FOXO synthesis has emerged as a new regulatory level of their functions. Accumulating evidence suggests that this post-transcriptional mode of regulation of FOXO activity operates in response to stressful stimuli, including oxidative stress. Here, we give a brief overview on post-transcriptional regulation of FOXO synthesis by microRNAs (miRNAs) and by RNA-binding regulatory proteins, human antigen R (HuR) and quaking (QKI). Aberrant post-transcriptional regulation of FOXOs is frequently connected with various disease states. We therefore discuss characteristic examples of FOXO regulation at the post-transcriptional level under various physiological and pathophysiological conditions, including oxidative stress and cancer. The picture emerging from this summary points to a diversity of interactions between miRNAs/miRNA-induced silencing complexes and RNA-binding regulatory proteins. Better insight into these complexities of post-transcriptional regulatory interactions will add to our understanding of the mechanisms of pathological processes and the role of FOXO proteins. LINKED ARTICLES This article is part of a themed section on Redox Biology and Oxidative Stress in Health and Disease. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.12/issuetoc.
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Affiliation(s)
- P Urbánek
- Institute of Nutrition, Department of NutrigenomicsFriedrich‐Schiller‐Universität JenaJenaGermany
| | - L‐O Klotz
- Institute of Nutrition, Department of NutrigenomicsFriedrich‐Schiller‐Universität JenaJenaGermany
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23
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Cytomegalovirus as an oncomodulatory agent in the progression of glioma. Cancer Lett 2017; 384:79-85. [DOI: 10.1016/j.canlet.2016.10.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 10/13/2016] [Accepted: 10/14/2016] [Indexed: 12/12/2022]
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24
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Shao Y, Ren H, Lv C, Ma X, Wu C, Wang Q. Changes of serum Mir-217 and the correlation with the severity in type 2 diabetes patients with different stages of diabetic kidney disease. Endocrine 2017; 55:130-138. [PMID: 27522360 DOI: 10.1007/s12020-016-1069-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 07/18/2016] [Indexed: 12/18/2022]
Abstract
The aim of this study is to investigate the correlation between serum microRNA-217 and the severity of diabetic kidney disease determined by albuminuria. Four hundred ninety five type 2 diabetes patients were divided into three groups: normoalbuminuric group, microalbuminuric group, and macroalbuminuric group. Serum microRNA-217 levels were validated by real-time polymerase chain reaction. Serum silent information regulator 1, Hypoxia-inducible factor-1α and vascular endothelial growth factor were determined by enzyme-linked immunosorbent assay. Compared with control, serum microRNA-217 levels were significantly increased in type 2 diabetes patients and gradually increased in patients of normoalbuminuric, microalbuminuric, and macroalbuminuric groups (P < 0.01). Moreover, increased levels of serum microRNA-217, hypoxia-inducible factor-1α, vascular endothelial growth factor, diabetes mellitus duration, fasting blood glucose, fasting insulin, homeostasis model assessment for insulin resistance, glycated hemoglobin, low-density lipoprotein, total cholesterol, triglyceride, uric acid, serum creatinine, blood urea nitrogen, and decreased levels of serum silent information regulator 1 and high-density lipoprotein were significantly correlated with Ln(ACR) (P < 0.05). In addition, serum microRNA-217 was positively correlated with diabetes mellitus duration, homeostasis model assessment for insulin resistance, glycated hemoglobin, Ln(ACR), low-density lipoprotein, total cholesterol, triglyceride, uric acid, serum creatinine, blood urea nitrogen, hypoxia-inducible factor-1α, vascular endothelial growth factor (P < 0.05), and negatively correlated with serum silent information regulator 1 (P = 0.002). Our findings suggest that microRNA-217 may have an association with the development of proteinuria in type 2 diabetes patients. Serum microRNA-217 may be involved in the development of diabetic kidney disease by promoting chronic inflammation, renal fibrosis, and angiogenesis.
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Affiliation(s)
- Ying Shao
- Department of Endocrinology, The First Hospital Affiliated to China Medical University, Shenyang, Liaoning, China
| | - Huiwen Ren
- Department of Endocrinology, The First Hospital Affiliated to China Medical University, Shenyang, Liaoning, China
| | - Chuan Lv
- Department of Endocrinology, People's Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xiaoyu Ma
- Cadre Department, The First Hospital Affiliated to China Medical University, Shenyang, Liaoning, China
| | - Can Wu
- Department of Endocrinology, The First Hospital Affiliated to China Medical University, Shenyang, Liaoning, China
| | - Qiuyue Wang
- Department of Endocrinology, The First Hospital Affiliated to China Medical University, Shenyang, Liaoning, China.
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25
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miR-217 and CAGE form feedback loop and regulates the response to anti-cancer drugs through EGFR and HER2. Oncotarget 2016; 7:10297-321. [PMID: 26863629 PMCID: PMC4891121 DOI: 10.18632/oncotarget.7185] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 01/23/2016] [Indexed: 02/07/2023] Open
Abstract
MicroRNA array analysis revealed that miR-217 expression was decreased in anti-cancer drug-resistant Malme3MR cancer cells. CAGE, a cancer/testis antigen, was predicted as a target of miR-217. Luciferase activity and ChIP assays revealed a negative feedback relationship between CAGE and miR-217. miR-217 and CAGE oppositely regulated the response to anti-cancer drugs such as taxol, gefitinib and trastuzumab, an inhibitor of HER2. miR-217 negatively regulated the tumorigenic, metastatic, angiogenic, migration and invasion potential of cancer cells. The xenograft of Malme3MR cells showed an increased expression of pEGFRY845. CAGE and miR-217 inhibitor regulated the expression of pEGFRY845. CAGE showed interactions with EGFR and HER2 and regulated the in vivo sensitivity to trastuzumab. The down-regulation of EGFR or HER2 enhanced the sensitivity to anti-cancer drugs. CAGE showed direct regulation of HER2 and was necessary for the interaction between EGFR and HER2 in Malme3MR cells. miR-217 inhibitor induced interactions of CAGE with EGFR and HER2 in Malme3M cells. The inhibition of EGFR by CAGE-binding GTGKT peptide enhanced the sensitivity to gefitinib and trastuzumab and prevented interactions of EGFR with CAGE and HER2. Our results show that miR-217-CAGE feedback loop serves as a target for overcoming resistance to various anti-cancer drugs, including EGFR and HER2 inhibitors.
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26
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Shao Y, Lv C, Wu C, Zhou Y, Wang Q. Mir-217 promotes inflammation and fibrosis in high glucose cultured rat glomerular mesangial cells via Sirt1/HIF-1α signaling pathway. Diabetes Metab Res Rev 2016; 32:534-43. [PMID: 26891083 DOI: 10.1002/dmrr.2788] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 02/05/2016] [Accepted: 02/09/2016] [Indexed: 01/15/2023]
Abstract
BACKGROUND Silent information regulator 1 (Sirt1) plays a protective role in kidney. Sirt1 suppresses activation of hypoxia-inducible factor-1 alpha (HIF-1α), with MircroRNA-217 (Mir-217) being closely related to Sirt1. The relationship of Sirt1, HIF-1α and Mir-217, however, has never been reported in high glucose cultured rat glomerular mesangial cells (RMCs). Thus, we explored the role of Mir-217 on inflammation and fibrosis in RMCs cultured with high glucose in vitro through Sirt1/HIF-1α signaling pathway. METHODS Rat glomerular mesangial cells were pre-incubated with Sirt1 activator Resveratrol prior to high glucose treatment. Furthermore the cells were transiently transfected with Sirt1 small interfering RNA (siRNA), HIF-1α siRNA and Mir-217 inhibitor using Lipofectamine 2000. Real-time PCR was used to analyse the expression of Mir-217, Sirt1 mRNA and HIF-1α mRNA; Western Blot was used to observe protein expression of Sirt1, HIF-1α, connective tissue growth factor, endothelin-1 and fibronectin; enzyme-linked immunosorbent assay was used to detect protein expression of transforming growth factor-β1 and vascular endothelial growth factor. RESULTS High glucose increased Mir-217 expression. High glucose decreased Sirt1 expression, accompanied by the increased HIF-1α expression and then promoted inflammation and fibrosis. In addition, Mir-217 gene silencing or Resveratrol could suppress the expression of HIF-1α, which in turn restrained inflammation and fibrosis in rat glomerular mesangial cells cultured with high glucose. CONCLUSION This study clarified the role of Mir-217 in high glucose cultured rat glomerular mesangial cells through Sirt1/HIF-1α signaling pathway and provided new therapeutic targets for diabetic nephropathy. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Ying Shao
- Department of Endocrinology, the First Hospital Affiliated to China Medical University, Shenyang, Liaoning, China
| | - Chuan Lv
- Department of Endocrinology, the First Hospital Affiliated to China Medical University, Shenyang, Liaoning, China
| | - Can Wu
- Department of Endocrinology, the First Hospital Affiliated to China Medical University, Shenyang, Liaoning, China
| | - Yuehong Zhou
- Division of Endocrinology, Shenyang NO.8 hospital, Shenyang, Liaoning, China
| | - Qiuyue Wang
- Department of Endocrinology, the First Hospital Affiliated to China Medical University, Shenyang, Liaoning, China
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27
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Gustafsson RKL, Jeffery HC, Yaiw KC, Wilhelmi V, Kostopoulou ON, Davoudi B, Rahbar A, Benard M, Renné T, Söderberg-Nauclér C, Butler LM. Direct infection of primary endothelial cells with human cytomegalovirus prevents angiogenesis and migration. J Gen Virol 2016; 96:3598-3612. [PMID: 26416316 DOI: 10.1099/jgv.0.000301] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Human cytomegalovirus (hCMV) is a beta herpesvirus that establishes lifelong infection. Although the virus does not usually cause overt clinical symptoms in immunocompetent individuals it can have deleterious effects in immunocompromised patients, such as those on post-transplant medication or with HIV infection. hCMV is the most common congenital infection and can lead to serious fetal sequelae. Endothelial cells (ECs) are natural hosts for hCMV in vivo, therefore, investigations of how this cell type is modulated by infection are key to understanding hCMV pathogenesis. Previous studies have examined the effect of secretomes from hCMV-infected cells on EC angiogenesis, whereas the effect of direct infection on this process has not been so well investigated. Here, we show that placental ECs are viral targets during congenital infection and that vessels in infected tissue appear morphologically abnormal. We demonstrate that the clinical hCMV strain VR1814 impaired EC tube assembly in in vitro angiogenesis assays and inhibited wound healing ability in scratch assays. Secretomes from infected cultures did not impair angiogenesis of uninfected ECs, suggesting that cell-intrinsic changes, as opposed to secreted factors, were responsible. We observed viral gene transcription dependent downregulation of the expression of angiogenesis-associated genes, including angiopoietin-2, TEK receptor and vascular endothelial growth factor receptors. An alternative clinical hCMV stain, TB40E showed similar effects on EC angiogenesis. Together, our data indicate that direct infection with hCMV can induce an anti-migratory and anti-angiogenic EC phenotype, which could have a detrimental effect on the vasculature development in infected tissues.
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Affiliation(s)
- Rasmus K L Gustafsson
- Clinical Chemistry, Department of Molecular Medicine and Surgery, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden.,Institute for Clinical Chemistry and Laboratory Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Hannah C Jeffery
- Department of Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Koon-Chu Yaiw
- Department of Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Vanessa Wilhelmi
- Department of Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Ourania N Kostopoulou
- Department of Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Belghis Davoudi
- Department of Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Afsar Rahbar
- Department of Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Melinda Benard
- INSERM UMR 1043, Hospital Purpan, Paul Sabatier University, Toulouse 31024, France
| | - Thomas Renné
- Clinical Chemistry, Department of Molecular Medicine and Surgery, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden.,Institute for Clinical Chemistry and Laboratory Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | | | - Lynn M Butler
- Clinical Chemistry, Department of Molecular Medicine and Surgery, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden.,Institute for Clinical Chemistry and Laboratory Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
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28
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Yuan Y, Cruzat VF, Newsholme P, Cheng J, Chen Y, Lu Y. Regulation of SIRT1 in aging: Roles in mitochondrial function and biogenesis. Mech Ageing Dev 2016; 155:10-21. [DOI: 10.1016/j.mad.2016.02.003] [Citation(s) in RCA: 147] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 12/28/2015] [Accepted: 02/05/2016] [Indexed: 12/13/2022]
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29
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Niu G, Li B, Sun J, Sun L. miR-454 is down-regulated in osteosarcomas and suppresses cell proliferation and invasion by directly targeting c-Met. Cell Prolif 2015; 48:348-55. [PMID: 25880599 DOI: 10.1111/cpr.12187] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Accepted: 01/28/2015] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVES Osteosarcoma is the most common primary bone malignancy of children and young adults. Increasing evidence has shown that microRNAs (miRNAs) are associated with cancer development, but, little is known concerning the role of miR-454 in osteosarcoma. MATERIALS AND METHODS qRT-PCR was performed to detect expression of miR-454 in osteosarcoma cell lines and tissues. To understand its role in osteosarcoma, we reintroduced expression of miR-454 in the MG-63 cell line by transfection with miR-454 mimics or inhibitors. CCK-8 assay and an invasion assay were used to detect the functional role of miR-454. Luciferase assay and western blot analysis were performed to detect the target gene of miR-454. RESULTS miR-454 was found to be down-regulated in osteosarcoma tissues and cell lines. Its over-expression inhibited tumour growth and invasion and its down-regulation promoted cell proliferation and invasion. Subsequent investigation revealed that c-Met was a direct and functional target of miR-454 in osteosarcoma. Overexpression of miR-454 impaired c-Met-induced cell proliferation and invasion. Finally, miR-454 was found to be inversely correlated to c-Met expression in human osteosarcoma tissues. CONCLUSIONS Reduced-expression of miR-454 in osteosarcoma cells promoted tumour growth by targeting c-Met, thus miR-454 may be a potential therapy target for this tumour.
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Affiliation(s)
- Guangfeng Niu
- Department of Orthopaedics, Shandong Provincial Hospital affiliated to Shandong University, Jinan, 250021, China
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30
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Morris BJ, Willcox DC, Donlon TA, Willcox BJ. FOXO3: A Major Gene for Human Longevity--A Mini-Review. Gerontology 2015; 61:515-25. [PMID: 25832544 DOI: 10.1159/000375235] [Citation(s) in RCA: 223] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 01/14/2015] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The gene FOXO3, encoding the transcription factor forkhead box O-3 (FoxO3), is one of only two for which genetic polymorphisms have exhibited consistent associations with longevity in diverse human populations. OBJECTIVE Here, we review the multitude of actions of FoxO3 that are relevant to health, and thus healthy ageing and longevity. METHODS The study involved a literature search for articles retrieved from PubMed using FoxO3 as keyword. RESULTS We review the molecular genetics of FOXO3 in longevity, then current knowledge of FoxO3 function relevant to ageing and lifespan. We describe how FoxOs are involved in energy metabolism, oxidative stress, proteostasis, apoptosis, cell cycle regulation, metabolic processes, immunity, inflammation and stem cell maintenance. The single FoxO in Hydra confers immortality to this fresh water polyp, but as more complex organisms evolved, this role has been usurped by the need for FoxO to control a broader range of specialized pathways across a wide spectrum of tissues assisted by the advent of as many as 4 FoxO subtypes in mammals. The major themes of FoxO3 are similar, but not identical, to other FoxOs and include regulation of cellular homeostasis, particularly of stem cells, and of inflammation, which is a common theme of age-related diseases. Other functions concern metabolism, cell cycle arrest, apoptosis, destruction of potentially damaging reactive oxygen species and proteostasis. CONCLUSIONS The mechanism by which longevity-associated alleles of FOXO3 reduce age-related mortality is currently of great clinical interest. The prospect of optimizing FoxO3 activity in humans to increase lifespan and reduce age-related diseases represents an exciting avenue of clinical investigation. Research strategies directed at developing therapeutic agents that target FoxO3, its gene and proteins in the pathway(s) FoxO3 regulates should be encouraged and supported.
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Affiliation(s)
- Brian J Morris
- Department of Geriatric Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA
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31
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Yin H, Liang X, Jogasuria A, Davidson NO, You M. miR-217 regulates ethanol-induced hepatic inflammation by disrupting sirtuin 1-lipin-1 signaling. THE AMERICAN JOURNAL OF PATHOLOGY 2015; 185:1286-96. [PMID: 25797648 DOI: 10.1016/j.ajpath.2015.01.030] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 01/14/2015] [Accepted: 01/20/2015] [Indexed: 12/17/2022]
Abstract
Ethanol-mediated injury, combined with gut-derived lipopolysaccharide (LPS), provokes generation of proinflammatory cytokines in Kupffer cells, causing hepatic inflammation. Among the mediators of these effects, miR-217 aggravates ethanol-induced steatosis in hepatocytes. However, the role of miR-217 in ethanol-induced liver inflammation process is unknown. Here, we examined the role of miR-217 in the responses to ethanol, LPS, or a combination of ethanol and LPS in RAW 264.7 macrophages and in primary Kupffer cells. In macrophages, ethanol substantially exacerbated LPS-mediated induction of miR-217 and production of proinflammatory cytokines compared with LPS or ethanol alone. Consistently, ethanol administration to mice led to increases in miR-217 abundance and increased production of inflammatory cytokines in isolated primary Kupffer cells exposed to the combination of ethanol and LPS. miR-217 promoted combined ethanol and LPS-mediated inhibition of sirtuin 1 expression and activity in macrophages. Moreover, miR-217-mediated sirtuin 1 inhibition was accompanied by increased activities of two vital inflammatory regulators, NF-κB and the nuclear factor of activated T cells c4. Finally, adenovirus-mediated overexpression of miR-217 led to steatosis and inflammation in mice. These findings suggest that miR-217 is a pivotal regulator involved in ethanol-induced hepatic inflammation. Strategies to inhibit hepatic miR-217 could be a viable approach in attenuating alcoholic hepatitis.
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Affiliation(s)
- Huquan Yin
- Department of Molecular Pharmacology and Physiology, University of South Florida Health Sciences Center, Tampa, Florida
| | - Xiaomei Liang
- Department of Molecular Pharmacology and Physiology, University of South Florida Health Sciences Center, Tampa, Florida
| | - Alvin Jogasuria
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, College of Pharmacy, Rootstown, Ohio
| | - Nicholas O Davidson
- Division of Gastroenterology, Department of Medicine, Washington University School of Medicine, Saint Louis, Missouri
| | - Min You
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, College of Pharmacy, Rootstown, Ohio.
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32
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Bosch-Presegué L, Vaquero A. Sirtuin-dependent epigenetic regulation in the maintenance of genome integrity. FEBS J 2014; 282:1745-67. [DOI: 10.1111/febs.13053] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 09/09/2014] [Accepted: 09/12/2014] [Indexed: 12/12/2022]
Affiliation(s)
- Laia Bosch-Presegué
- Chromatin Biology Laboratory; Cancer Epigenetics and Biology Program; Institut d'Investigació Biomèdica de Bellvitge; Barcelona Spain
| | - Alejandro Vaquero
- Chromatin Biology Laboratory; Cancer Epigenetics and Biology Program; Institut d'Investigació Biomèdica de Bellvitge; Barcelona Spain
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33
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Goldberger T, Mandelboim O. The use of microRNA by human viruses: lessons from NK cells and HCMV infection. Semin Immunopathol 2014; 36:659-74. [PMID: 25234555 DOI: 10.1007/s00281-014-0447-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Accepted: 08/28/2014] [Indexed: 12/21/2022]
Abstract
Depending on ethnicity and on social conditions, between 40 and 90 % of the population is infected with human cytomegalovirus (HCMV). In immunocompetent patients, the virus may cause an acute disease and then revert to a state of latency, which enables its coexistence with the human host. However, in cases of immunosuppression or in neonatal infections, HCMV can cause serious long-lasting illnesses. HCMV has developed multiple mechanisms in order to escape its elimination by the immune system, specifically by two killer cell types of the adaptive and the innate immune systems; cytotoxic T lymphocytes (CTL) and natural killer (NK) cells, respectively. Another fascinating aspect of HCMV is that like other highly developed herpesviruses, it expresses its own unique set of microRNAs. Here, we initially describe how the activity of NK cells is regulated under normal conditions and during infection. Then, we discuss what is currently known about HCMV microRNA-mediated interactions, with special emphasis on immune modulation and NK cell evasion. We further illustrate the significant modulation of cellular microRNAs during HCMV infection. Although, the full target spectrum of HCMV microRNAs is far from being completely elucidated, it can already be concluded that HCMV uses its "multitasking" microRNAs to globally affect its own life cycle, as well as important cellular and immune-related pathways.
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Affiliation(s)
- Tal Goldberger
- The Lautenberg Center of General and Tumor Immunology, The Hebrew University Hadassah Medical School, IMRIC, Jerusalem, 91120, Israel
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34
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Maroof H, Salajegheh A, Smith RA, Lam AKY. Role of microRNA-34 family in cancer with particular reference to cancer angiogenesis. Exp Mol Pathol 2014; 97:298-304. [PMID: 25102298 DOI: 10.1016/j.yexmp.2014.08.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 08/01/2014] [Indexed: 02/07/2023]
Abstract
MicroRNA-34 is involved in pathogenesis in cancer by targeting different tumor-related genes. It could be a biomarker for predicting the prognosis of patients with cancer. In addition, miR-34 is involved in the tumor angiogenesis. Understanding the mechanism of the miR-34 in cancer and tumor angiogenesis will open horizons for development of anti-cancer and anti-angiogenesis drugs.
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Affiliation(s)
- Hamidreza Maroof
- Cancer Molecular Pathology, School of Medicine and Griffith Health Institute, Griffith University, Gold Coast, Queensland, Australia
| | - Ali Salajegheh
- Cancer Molecular Pathology, School of Medicine and Griffith Health Institute, Griffith University, Gold Coast, Queensland, Australia
| | - Robert Anthony Smith
- Cancer Molecular Pathology, School of Medicine and Griffith Health Institute, Griffith University, Gold Coast, Queensland, Australia
| | - Alfred King-Yin Lam
- Cancer Molecular Pathology, School of Medicine and Griffith Health Institute, Griffith University, Gold Coast, Queensland, Australia.
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