1
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Li Q, Zhang Q. MiR-34a and endothelial biology. Life Sci 2023; 330:121976. [PMID: 37495076 DOI: 10.1016/j.lfs.2023.121976] [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: 03/12/2023] [Revised: 07/06/2023] [Accepted: 07/23/2023] [Indexed: 07/28/2023]
Abstract
MicroRNAs (miRNAs) are endogenous ∼22 nt long RNAs that play important gene-regulatory roles in cells by pairing to the mRNAs of protein-coding genes to direct their posttranscriptional repression. Many miRNAs have been identified in endothelial cells and play important roles in endothelial biology. miR-34a is relatively early identified in endothelial cells and has been involved in regulating endothelial functions, angiogenesis, differentiation, senescence, inflammatory response, responses to shear stress, and mitochondrial function. This review outlines the current understanding of miR-34a in endothelial biology and discusses its potential as a therapeutic target to treat vascular diseases.
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Affiliation(s)
- Qiuxia Li
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, David Geffen School of Medicine and UCLA Health, University of California-Los Angeles, Los Angeles, CA 90095, USA; Division of Cardiovascular Medicine, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA.
| | - Quanjiang Zhang
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, David Geffen School of Medicine and UCLA Health, University of California-Los Angeles, Los Angeles, CA 90095, USA.
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2
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Nolze A, Matern S, Grossmann C. Calcineurin Is a Universal Regulator of Vessel Function-Focus on Vascular Smooth Muscle Cells. Cells 2023; 12:2269. [PMID: 37759492 PMCID: PMC10528183 DOI: 10.3390/cells12182269] [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: 07/19/2023] [Revised: 09/05/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Calcineurin, a serine/threonine phosphatase regulating transcription factors like NFaT and CREB, is well known for its immune modulatory effects and role in cardiac hypertrophy. Results from experiments with calcineurin knockout animals and calcineurin inhibitors indicate that calcineurin also plays a crucial role in vascular function, especially in vascular smooth muscle cells (VSMCs). In the aorta, calcineurin stimulates the proliferation and migration of VSMCs in response to vascular injury or angiotensin II administration, leading to pathological vessel wall thickening. In the heart, calcineurin mediates coronary artery formation and VSMC differentiation, which are crucial for proper heart development. In pulmonary VSMCs, calcineurin/NFaT signaling regulates the release of Ca2+, resulting in increased vascular tone followed by pulmonary arterial hypertension. In renal VSMCs, calcineurin regulates extracellular matrix secretion promoting fibrosis development. In the mesenteric and cerebral arteries, calcineurin mediates a phenotypic switch of VSMCs leading to altered cell function. Gaining deeper insights into the underlying mechanisms of calcineurin signaling will help researchers to understand developmental and pathogenetical aspects of the vasculature. In this review, we provide an overview of the physiological function and pathophysiology of calcineurin in the vascular system with a focus on vascular smooth muscle cells in different organs. Overall, there are indications that under certain pathological settings reduced calcineurin activity seems to be beneficial for cardiovascular health.
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Affiliation(s)
| | | | - Claudia Grossmann
- Julius Bernstein Institute of Physiology, Martin Luther University Halle-Wittenberg, 06112 Halle (Saale), Germany
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3
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The Overexpression of miR-377 Aggravates Sepsis-Induced Myocardial Hypertrophy by Binding to Rcan2 and Mediating CaN Activity. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:6659183. [PMID: 36267816 PMCID: PMC9578796 DOI: 10.1155/2022/6659183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 01/28/2022] [Indexed: 11/17/2022]
Abstract
Sepsis remains a complicated and incompletely understood syndrome, and myocardial dysfunction is one of the main complications contributing to poor clinical outcomes. Accumulating evidence has revealed the critical involvement of the deregulated expression of specific microRNAs (miRNAs) in cardiac pathologies caused by sepsis. Intriguingly, miR-377 has been correlated with cardiomyocyte apoptosis, whereas its effect on myocardial hypertrophy remains to be illustrated. Thus, the current study sets out to explore the impact and underlying mechanism of miR-377 on myocardial hypertrophy induced by sepsis. The expression pattern of miR-377 was detected in myocardial tissues of septic mice induced by cecal ligation-perforation (CLP). We found that miR-377 was highly expressed in myocardial tissues of CLP-induced septic mice with cardiomyocyte hypertrophy. Besides, miR-377 inhibition could relieve cardiomyocyte hypertrophy and reduce inflammation in septic mice. Further, mechanistic studies found that miR-377 could target Rcan2 and then regulate calcineurin (CaN) activity via Ca2+/CaN signaling pathway. Collectively, our findings illuminate that miR-377 enhances myocardial hypertrophy caused by sepsis, by targeting Rcan2 and further regulating the Ca2+/CaN signaling pathway. This work highlights downregulation of miR-377 as a novel target for the management of sepsis-induced myocardial hypertrophy.
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4
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Teng Y, Tian M, Huang B, Wu W, Jiang Q, Luo X, Pan W, Zhuang J, Zhou C, Chen J. Central and Peripheral Cannulation for Cardiopulmonary Bypass in Fetal Sheep: A Comparative Study. Front Cardiovasc Med 2021; 8:769231. [PMID: 34966796 PMCID: PMC8710517 DOI: 10.3389/fcvm.2021.769231] [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: 09/02/2021] [Accepted: 11/17/2021] [Indexed: 11/23/2022] Open
Abstract
Objective:In-utero correction is an option for treatment of critical congenital heart diseases (CHDs). Fetal cardiac surgery for CHDs is dependent on the reliable use of fetal cardiopulmonary bypass (CPB), but this technology remains experimental. In this study, we established fetal CPB models with central and peripheral cannulation to explore the differences between the two cannulation strategies. Methods: Ten fetal sheep with 90–110 gestational days were randomized into central cannulation (n = 5) and peripheral cannulation (n = 5) groups. All fetal CPB models were successfully established. At each time point (0, 30, and 60 min after initiation of CPB), echocardiography was performed. Blood samples were also collected for blood gas analysis and tests of myocardial enzymes and liver and kidney function. Results: In the central cannulation group, right ventricular Tei index significantly increased (p = 0.016) over time. Compared with the peripheral cannulation group, the left ventricular Tei index of the central cannulation group was significantly higher (1.96 ± 0.31 vs. 0.45 ± 0.19, respectively; p = 0.028) and the stroke volume was lower (0.46 ± 0.55 vs. 2.13 ± 0.05, respectively; p = 0.008) at 60 min after CPB. Levels of liver and kidney injury markers and of acid-base balance, including alanine aminotransferase (ALT), aspartate aminotransferase/ALT ratio, blood urea nitrogen (BUN), BUN/creatinine ratio, base excess and bicarbonates, were significantly higher for peripheral than for central cannulation. Other important physiologic parameters, including heart rate, blood pressure, myocardial enzymes, umbilical artery beat index and resistance index, left ventricular Tei index, and left and right ventricular stroke volume, were comparable between the two groups. Conclusions: Both central and peripheral cannulations can be used to establish fetal CPB models. Central cannulation causes more adverse impacts for cardiac function, whereas peripheral cannulation is more susceptible to complications related to inadequate organ perfusion.
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Affiliation(s)
- Yun Teng
- Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China
| | - Miao Tian
- Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China
| | - Bingxin Huang
- Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China
| | - Wentao Wu
- Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China
| | - Qiuping Jiang
- Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China
| | - Xiaokang Luo
- Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China
| | - Wei Pan
- Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China
| | - Jian Zhuang
- Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China
| | - Chengbin Zhou
- Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China
| | - Jimei Chen
- Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China
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5
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Xiao S, Zhou Y, Liu A, Wu Q, Hu Y, Liu J, Zhu H, Yin T, Pan D. Uncovering potential novel biomarkers and immune infiltration characteristics in persistent atrial fibrillation using integrated bioinformatics analysis. MATHEMATICAL BIOSCIENCES AND ENGINEERING : MBE 2021; 18:4696-4712. [PMID: 34198460 DOI: 10.3934/mbe.2021238] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Atrial fibrillation (AF) is the most common cardiac arrhythmia. This study aimed to identify potential novel biomarkers for persistent AF (pAF) using integrated analyses and explore the immune cell infiltration in this pathological process. Three pAF datasets (GSE31821, GSE41177, and GSE79768) from the Gene Expression Omnibus (GEO) database were integrated with the elimination of batch effects. 264 differentially expressed genes (DEGs) were identified using Linear models for microarray data (LIMMA), 12 modules were screened out by weighted gene co-expression network analysis (WGCNA) in pAF compared with normal controls. Subsequently, common genes (CGs) were identified as the intersection of DEGs and genes in the most significant module. Functional enrichment analysis showed that CGs were mainly enriched in the "Calcineurin-NFAT (nuclear factor of activated T-cells)" signaling pathway, particularly regulator of calcineurin 1 (RCAN1), and protein phosphatase 3 regulatory subunit B, alpha (PPP3R1). Ulteriorly, the microRNA-transcription factor-mRNA network revealed that microRNA-34a-5p could target both RCAN1 and PPP3R1 in the pAF pathogenesis. Finally, immune infiltration analysis by CIBERSORT, a versatile computational method, displayed a higher level of monocytes, dendritic cells and neutrophils, as well as a lower level of CD8+ T cells and T cells regulatory (Tregs) in pAF compared with the control group. In conclusion, our present study revealed several novel pAF-associated genes, miRNAs, and pathways, including microRNA-34a-5p, which might target RCAN1 and PPP3R1 to regulate pAF through the calcineurin-NFAT signaling pathway. In addition, there was a difference in immune infiltration between patients with pAF and normal groups and immune cells might interact with specific genes in pAF.
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Affiliation(s)
- Shengjue Xiao
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Yufei Zhou
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Ailin Liu
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Qi Wu
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Yue Hu
- Department of General Practice, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Jie Liu
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Hong Zhu
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Ting Yin
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Defeng Pan
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
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6
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Lourenço P, Pereira J, Ribeiro A, Ferreira-Coimbra J, Barroso I, Guimarães JT, Leite-Moreira A, Bettencourt P. C-reactive protein decrease associates with mortality reduction only in heart failure with preserved ejection fraction. J Cardiovasc Med (Hagerstown) 2019; 20:23-29. [PMID: 30407267 DOI: 10.2459/jcm.0000000000000726] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
AIMS The prognostic role of high-sensitivity C-reactive protein (hsCRP) in acute heart failure is less well established than for chronic heart failure and the impact of its variation is unknown. We studied the impact of hsCRP variation in acute heart failure and whether it differed according to left ventricular function. METHODS We analyzed patients prospectively included in an acute heart failure registry. Admission and discharge hsCRP were evaluated as part of the registry's protocol and its relative variation (ΔhsCRP) was assessed. ΔhsCRP during hospitalization = [(admission hsCRP - discharge hsCRP)/admission hsCRP] × 100. Endpoint: all-cause death; follow-up: 3 years. A multivariate Cox-regression model was used to assess the prognostic value of ΔhsCRP (continuous and categorical variable: cut-off 40% decrease); analysis was stratified according to ventricular function. RESULTS We studied 439 patients: mean age 75 years, 50.1% men and 69.2% had heart failure with reduced ejection fraction (HFrEF). Median discharge hsCRP was 12.4 mg/l and median ΔhsCRP was ∼40%. During follow-up 247 patients (56.3%) died: 73 (54.1%) heart failure with preserved ejection fraction (HFpEF) patients and 174 (57.2%) HFrEF patients. The multivariate-adjusted hazard ratio of 3-year mortality in HFpEF patients with hsCRP decrease of at least 40% during hospitalization was 0.56 (95% CI 0.32-0.99). A decrease of at least 40% in hsCRP was not mortality-associated in HFrEF patients. There was interaction between ΔhsCRP and left ventricular ejection fraction. CONCLUSION A decrease of at least 40% in hsCRP in acute heart failure was associated with a 44% decrease in 3-year death risk in HFpEF patients. No association between ΔhsCRP and prognosis existed in HFrEF patients. Inflammation appears to play a different role according to left ventricular function.
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Affiliation(s)
| | | | | | | | - Isaac Barroso
- Serviço de Patologia Clínica, Centro Hospitalar São João
| | - João-Tiago Guimarães
- Serviço de Patologia Clínica, Centro Hospitalar São João.,Faculdade de Medicina da Universidade do Porto, Unidade I&D Cardiovascular do Porto
| | - Adelino Leite-Moreira
- Faculdade de Medicina da Universidade do Porto, Unidade I&D Cardiovascular do Porto.,Serviço de Cirurgia Cardiotorácica, Centro Hospitalar São João
| | - Paulo Bettencourt
- Faculdade de Medicina da Universidade do Porto, Unidade I&D Cardiovascular do Porto.,Serviço de Medicina Interna, Hospital CUF Porto, Porto, Portugal
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7
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Zhao Y, Jaber VR, LeBeauf A, Sharfman NM, Lukiw WJ. microRNA-34a (miRNA-34a) Mediated Down-Regulation of the Post-synaptic Cytoskeletal Element SHANK3 in Sporadic Alzheimer's Disease (AD). Front Neurol 2019; 10:28. [PMID: 30792687 PMCID: PMC6374620 DOI: 10.3389/fneur.2019.00028] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 01/10/2019] [Indexed: 12/13/2022] Open
Abstract
Integrating a combination of bioinformatics, microRNA microfluidic arrays, ELISA analysis, LED Northern, and transfection-luciferase reporter assay data using human neuronal-glial (HNG) cells in primary culture we have discovered a set of up-regulated microRNAs (miRNAs) linked to a small family of down-regulated messenger RNAs (mRNAs) within the superior temporal lobe neocortex (Brodmann A22) of sporadic Alzheimer's disease (AD) brain. At the level of mRNA abundance, the expression of a significant number of human brain genes found to be down-regulated in sporadic AD neocortex appears to be due to the increased abundance of a several brain-abundant inducible miRNAs. These up-regulated miRNAs—including, prominently, miRNA-34a—have complimentary RNA sequences in the 3′ untranslated-region (3′-UTR) of their target-mRNAs that results in the pathological down-regulation in the expression of important brain genes. An up-regulated microRNA-34a, already implicated in age-related inflammatory-neurodegeneration–appears to down-regulate key mRNA targets involved in synaptogenesis and synaptic-structure, distinguishing neuronal deficits associated with AD neuropathology. One significantly down-regulated post-synaptic element in AD is the proline-rich SH3 and multiple-ankyrin-repeat domain SHANK3 protein. Bioinformatics, microRNA array analysis and SHANK3-mRNA-3′UTR luciferase-reporter assay confirmed the importance of miRNA-34a in the regulation of SHANK3 expression in HNG cells. This paper reports on recent studies of a miRNA-34a-up-regulation coupled to SHANK3 mRNA down-regulation in sporadic AD superior-temporal lobe compared to age-matched controls. These findings further support our hypothesis of an altered miRNA-mRNA coupled signaling network in AD, much of which is supported, and here reviewed, by recently reported experimental-findings in the scientific literature.
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Affiliation(s)
- Yuhai Zhao
- LSU Neuroscience Center, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States.,Department of Anatomy and Cell Biology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Vivian R Jaber
- LSU Neuroscience Center, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| | - Ayrian LeBeauf
- LSU Neuroscience Center, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| | - Nathan M Sharfman
- LSU Neuroscience Center, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| | - Walter J Lukiw
- LSU Neuroscience Center, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States.,Department of Ophthalmology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States.,Department of Neurology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
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8
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miR-34a alleviates spinal cord injury via TLR4 signaling by inhibiting HMGB-1. Exp Ther Med 2018; 17:1912-1918. [PMID: 30783468 DOI: 10.3892/etm.2018.7102] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Accepted: 06/29/2018] [Indexed: 12/13/2022] Open
Abstract
The aim of the present study was to investigate the effect of microRNA (miR)-34a on spinal cord injury (SCI)-induced inflammation and the possible underlying mechanisms. The results indicated that miR-34a expression was downregulated in a rat model of SCI compared with the control group. Furthermore, miR-34a knockdown was demonstrated to aggravate inflammation, inhibit cell proliferation and enhance apoptosis in an in vitro model of SCI. MiR-34a inhibition was demonstrated to upregulate the expression of inducible nitric oxide synthase and nitric oxide, as well as inducing the expression of toll-like receptor 4 (TLR4) and high mobility group box-1 (HMGB-1) in an in vitro model of SCI. TLR4 inhibitor reduced the effects of miR-34a downregulation on inflammation and cell growth in SCI. Together, these results suggest that miR-34a is able to alleviate SCI via inhibiting HMGB-1 expression in TLR4 signaling.
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9
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Diener C, Hart M, Alansary D, Poth V, Walch-Rückheim B, Menegatti J, Grässer F, Fehlmann T, Rheinheimer S, Niemeyer BA, Lenhof HP, Keller A, Meese E. Modulation of intracellular calcium signaling by microRNA-34a-5p. Cell Death Dis 2018; 9:1008. [PMID: 30262862 PMCID: PMC6160487 DOI: 10.1038/s41419-018-1050-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 09/10/2018] [Accepted: 09/10/2018] [Indexed: 12/21/2022]
Abstract
Adjusting intracellular calcium signaling is an important feature in the regulation of immune cell function and survival. Here we show that miR-34a-5p, a small non-coding RNA that is deregulated in many common diseases, is a regulator of store-operated Ca2+ entry (SOCE) and calcineurin signaling. Upon miR-34a-5p overexpression, we observed both a decreased depletion of ER calcium content and a decreased Ca2+ influx through Ca2+ release-activated Ca2+ channels. Based on an in silico target prediction we identified multiple miR-34a-5p target genes within both pathways that are implicated in the balance between T-cell activation and apoptosis including ITPR2, CAMLG, STIM1, ORAI3, RCAN1, PPP3R1, and NFATC4. Functional analysis revealed a decrease in Ca2+ activated calcineurin pathway activity measured by a reduced IL-2 secretion due to miR-34a-5p overexpression. Impacting SOCE and/or downstream calcineurin/NFAT signaling by miR-34a-5p offers a possible future approach to manipulate immune cells for clinical interventions.
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Affiliation(s)
- Caroline Diener
- Institute of Human Genetics, Saarland University, 66421, Homburg, Germany.
| | - Martin Hart
- Institute of Human Genetics, Saarland University, 66421, Homburg, Germany
| | - Dalia Alansary
- Molecular Biophysics, Center for Integrative Physiology and Molecular Medicine, School of Medicine, Saarland University, 66421, Homburg, Germany
| | - Vanessa Poth
- Molecular Biophysics, Center for Integrative Physiology and Molecular Medicine, School of Medicine, Saarland University, 66421, Homburg, Germany
| | - Barbara Walch-Rückheim
- Institute of Virology and Center of Human and Molecular Biology, Saarland University, 66421, Homburg, Germany
| | - Jennifer Menegatti
- Institute of Virology and Center of Human and Molecular Biology, Medical School, Saarland University, 66421, Homburg, Germany
| | - Friedrich Grässer
- Institute of Virology and Center of Human and Molecular Biology, Medical School, Saarland University, 66421, Homburg, Germany
| | - Tobias Fehlmann
- Chair for Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany
| | | | - Barbara A Niemeyer
- Molecular Biophysics, Center for Integrative Physiology and Molecular Medicine, School of Medicine, Saarland University, 66421, Homburg, Germany
| | - Hans-Peter Lenhof
- Center for Bioinformatics, Saarland Informatics Campus, Saarland University, 66123, Saarbrücken, Germany
| | - Andreas Keller
- Chair for Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany
| | - Eckart Meese
- Institute of Human Genetics, Saarland University, 66421, Homburg, Germany
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10
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Nejad C, Stunden HJ, Gantier MP. A guide to miRNAs in inflammation and innate immune responses. FEBS J 2018; 285:3695-3716. [DOI: 10.1111/febs.14482] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 03/08/2018] [Accepted: 04/18/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Charlotte Nejad
- Centre for Innate Immunity and Infectious Diseases Hudson Institute of Medical Research Clayton Australia
- Department of Molecular and Translational Science Monash University Clayton Australia
| | - H. James Stunden
- Institute of Innate Immunity Biomedical Center University Hospitals Bonn Bonn Germany
| | - Michael P. Gantier
- Centre for Innate Immunity and Infectious Diseases Hudson Institute of Medical Research Clayton Australia
- Department of Molecular and Translational Science Monash University Clayton Australia
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11
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Pogue AI, Lukiw WJ. Up-regulated Pro-inflammatory MicroRNAs (miRNAs) in Alzheimer's disease (AD) and Age-Related Macular Degeneration (AMD). Cell Mol Neurobiol 2018; 38:1021-1031. [PMID: 29302837 DOI: 10.1007/s10571-017-0572-3] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 12/21/2017] [Indexed: 11/25/2022]
Abstract
Alzheimer's disease (AD) of the brain neocortex and age-related macular degeneration (AMD) of the retina are two complex neurodegenerative disorders, which (i) involve the progressive dysregulation and deterioration of multiple neurobiological signaling pathways, (ii) exhibit the temporal accumulation of pro-inflammatory lesions including the amyloid beta (Aβ) peptide-containing senile plaques of AD and the drusen of AMD, and (iii) culminate in an insidious inflammatory neurodegeneration ending, respectively, in neural cell atrophy and death and progressive loss of cognition and central visual function. Recent independent research studies have indicated that AD and AMD share common, pathological signaling defects and disease mechanisms at the molecular genetic level. Using high-integrity total RNA samples pooled from AD brain and AMD retina, microfluidic hybridization miRNA arrays, and bioinformatics, the current study was undertaken to quantify microRNA (miRNA) speciation and complexity common to both AD and AMD. These small non-coding (sncRNAs) are known to post-transcriptionally regulate multiple neurobiological pathways and an abundance of research information has already been generated on the roles of these miRNAs in pathological situations involving inflammatory neuropathology and neural cell decline. Here, for the first time, we report the sequence and abundance of a septet of sncRNAs including miRNA-7, miRNA-9-1, miRNA-23a/miRNA-27a, miRNA-34a, miRNA-125b-1, miRNA-146a, and miRNA-155 that are significantly increased in abundance and common to both AD-affected superior temporal lobe neocortex (Brodmann A22) and the AMD-affected macular region of the retina. Bioinformatics, miRNA-mRNA complementarity, next-gen RNA sequencing, and feature alignment analysis further indicate that these 7 up-regulated miRNAs have the potential to interact with and down-regulate ~ 9460 target messenger RNAs (mRNAs; about 3.5% of the genome) involved in the synchronization of amyloid production and clearance, phagocytosis, innate-immune, pro-inflammatory, and neurotrophic signaling and/or synaptogenesis in diseased tissues.
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Affiliation(s)
| | - Walter J Lukiw
- Alchem Biotech Research, Toronto, ON, Canada.
- Neuroscience Center, Louisiana State University School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, 70112-2272, USA.
- Department of Neurology, Louisiana State University School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, 70112-2272, USA.
- Department of Ophthalmology, Louisiana State University School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, 70112-2272, USA.
- LSU Neuroscience Center, Louisiana State University Health Sciences Center, 2020 Gravier Street, Suite 904, New Orleans, LA, 70112-2272, USA.
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12
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Ge J, Chen L, Yang Y, Lu X, Xiang Z. Sparstolonin B prevents lumbar intervertebral disc degeneration through toll like receptor 4, NADPH oxidase activation and the protein kinase B signaling pathway. Mol Med Rep 2017; 17:1347-1353. [PMID: 29115481 DOI: 10.3892/mmr.2017.7966] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Accepted: 08/10/2017] [Indexed: 02/05/2023] Open
Abstract
Intervertebral disc degeneration (IVDD) is the most common pathogeny of lumbago. It is the pathological basis for a series of spinal degenerative diseases. For a long time, the diagnosis and treatment of lumbago have rendered difficult, since the pathogeny has not been identified. Therefore, the present study aimed to investigate the protective effect of Sparstolonin B in preventing lumbar intervertebral disc degeneration, and explored its potential mechanism in rats. Firstly, Sparstolonin B effectively reduced the histological score of disc degeneration and increased endplate porosity of L2 superior endplates in a lumbar IVDD rat model. Sparstolonin B significantly inhibited the IVDD‑induced inflammatory factors tumor necrosis factor‑α, interleukin (IL)‑1β and IL‑6, oxidative stress factors (malondialdehyde), and superoxide dismutase and caspase‑3/9 activities. Treatment with Sparstolonin B significantly suppressed toll‑like receptor 4 (TLR4), myeloid differentiation primary response protein 88 (MyD88) and nuclear factor (NF)‑κB protein expression, inhibited NAPDH oxidase 2 protein expression and induced phosphoinositide 3‑kinase and phosphorylated protein kinase B protein expression in the IVDD rat model. These results demonstrated that Sparstolonin B prevents lumbar IVDD‑induced inflammation, oxidative stress and apoptosis through TLR4/MyD88/NF‑κB, NADPH oxidase activation and the phosphoinositide 3‑kinase/protein kinase B signaling pathway. These results implicate Sparstolonin B for use as a therapeutic agent for IVDD in clinical applications.
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Affiliation(s)
- Jianhua Ge
- Department of Bone and Joint Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Long Chen
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yunkang Yang
- Department of Bone and Joint Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Xiaobo Lu
- Department of Bone and Joint Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Zhou Xiang
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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Fu BC, Lang JL, Zhang DY, Sun L, Chen W, Liu W, Liu KY, Ma CY, Jiang SL, Li RK, Tian H. Suppression of miR-34a Expression in the Myocardium Protects Against Ischemia-Reperfusion Injury Through SIRT1 Protective Pathway. Stem Cells Dev 2017; 26:1270-1282. [PMID: 28599575 DOI: 10.1089/scd.2017.0062] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
MicroRNA-34a (miR-34a) is expressed in the myocardium and expression is altered after myocardial injury. We investigated the effects of miR-34a on heart function after ischemia-reperfusion (IR) injury. Cardiomyocytes were isolated from neonatal rat hearts and simulated IR injury was induced in vitro. Following IR injury in rats, infarct size was measured and left ventricular (LV) function was evaluated using echocardiography. Protein expression of silent information regulator 1 (SIRT1), acetylated p53 (ac-p53), Bcl-2 and Bax, and miR-34a and SIRT1 gene levels were analyzed. miR-34a overexpression exacerbated myocardial injury by increasing apoptosis and infarct size and decreasing LV function. Suppression of miR-34a attenuated myocardial IR injury. SIRT1 was negatively regulated by miR-34a and the expression of downstream genes, such as ac-p53, Bcl-2, and Bax were altered correspondingly. Increased expression of miR-34a aggravates injury after IR; miR-34a suppression therapy may represent a new line of treatment for myocardial IR injury.
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Affiliation(s)
- Bi-Cheng Fu
- 1 Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University , Harbin, China .,2 Key Laboratories of Myocardial Ischemia, Chinese Ministry of Education , Harbin, China
| | - Ji-Lu Lang
- 1 Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University , Harbin, China .,2 Key Laboratories of Myocardial Ischemia, Chinese Ministry of Education , Harbin, China
| | - Dong-Yang Zhang
- 1 Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University , Harbin, China .,2 Key Laboratories of Myocardial Ischemia, Chinese Ministry of Education , Harbin, China
| | - Lu Sun
- 1 Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University , Harbin, China .,2 Key Laboratories of Myocardial Ischemia, Chinese Ministry of Education , Harbin, China
| | - Wei Chen
- 1 Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University , Harbin, China .,2 Key Laboratories of Myocardial Ischemia, Chinese Ministry of Education , Harbin, China
| | - Wei Liu
- 2 Key Laboratories of Myocardial Ischemia, Chinese Ministry of Education , Harbin, China
| | - Kai-Yu Liu
- 1 Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University , Harbin, China .,2 Key Laboratories of Myocardial Ischemia, Chinese Ministry of Education , Harbin, China
| | - Chong-Yi Ma
- 1 Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University , Harbin, China .,2 Key Laboratories of Myocardial Ischemia, Chinese Ministry of Education , Harbin, China
| | - Shu-Lin Jiang
- 1 Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University , Harbin, China .,2 Key Laboratories of Myocardial Ischemia, Chinese Ministry of Education , Harbin, China
| | - Ren-Ke Li
- 3 Division of Cardiovascular Surgery, Toronto General Research Institute, University Health Network , Toronto, Canada .,4 Division of Cardiac Surgery, Department of Surgery, University of Toronto , Toronto, Canada
| | - Hai Tian
- 1 Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University , Harbin, China .,2 Key Laboratories of Myocardial Ischemia, Chinese Ministry of Education , Harbin, China
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