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microRNA depression

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https://www.readbyqxmd.com/read/29115444/downregulation-of-microrna%C3%A2-124%C3%A2-3p-suppresses-the-mtor-signaling-pathway-by-targeting-ddit4-in-males-with-major-depressive-disorder
#1
Qiuling Wang, Gaofeng Zhao, Zhenzhen Yang, Xia Liu, Ping Xie
Recent investigations have suggested that microRNAs (miRNAs or miRs) are involved in several pathways that may contribute to the pathomechanism of major depressive disorder (MDD). Sex may not only act as a demographic factor in clinical practive, but may also play a vital role in the molecular heterogeneity of MDD. Although many molecular changes correlated with MDD are found in males, the molecular mechanisms of MDD remain poorly understood. The present study performed bioinformatics analysis to investigate the pathomechanism of MDD in males...
November 6, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29079539/study-of-the-in-vitro-modulation-exerted-by-the-antidepressant-drug-escitalopram-on-the-expression-of-candidate-micrornas-and-their-target-genes
#2
Elisabetta Maffioletti, Alessandro Salvi, Isabel Conde, Carlo Maj, Massimo Gennarelli, Giuseppina De Petro, Luisella Bocchio-Chiavetto
Recent studies indicated a role of microRNAs (miRNAs, small non-coding RNAs which regulate the expression of target genes by acting on mRNAs) in several neural processes, in the pathogenetic mechanisms of neuropsychiatric diseases and in the action of psychotropic drugs. A modulation induced by the antidepressant drug escitalopram on the expression levels of 30 miRNAs was highlighted in the blood of patients suffering from major depressive disorder. With the aim to investigate the effects of escitalopram in an in vitro model, we performed an analysis of the effects produced by escitalopram on the profiles of the 6 miRNAs found to be more significantly modulated in the above-mentioned study (miR-130b, miR-26a and -26b, let-7f, miR-770-5p, miR-34c-5p) in human U87 glioblastoma cells...
October 25, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/29076893/major-depression-and-its-treatment-micrornas-as-peripheral-biomarkers-of-diagnosis-and-treatment-response
#3
Juan P Lopez, Aron Kos, Gustavo Turecki
PURPOSE OF REVIEW: Major depressive disorder (MDD) is among the most prevalent and disabling medical conditions worldwide. Despite its considerable burden, our understanding of its pathophysiology remains rudimentary, and a validated biomarker has yet to be identified. Antidepressants are the most common treatment for MDD, yet roughly one-third of patients experience an inadequate response. Thus, there is a great need for not only identifying biomarkers of MDD but also those that can predict and monitor or just monitor response to treatment...
October 25, 2017: Current Opinion in Psychiatry
https://www.readbyqxmd.com/read/29043654/evaluation-of-selected-micrornas-expression-in-remission-phase-of-multiple-sclerosis-and-their-potential-link-to-cognition-depression-and-disability
#4
Marta Niwald, Monika Migdalska-Sęk, Ewa Brzeziańska-Lasota, Elżbieta Miller
Accumulating data suggests that miRNAs might play a major role in neuroinflammatory processes. Therefore, our study aimed to first estimate the levels of miR-155, miR-326, and miR-301a in serum of RR-MS patients in the remission phase and then compare the levels of the examined miRNAs at different times after relapse. In this study, 36 RR-MS patients in the remission phase took part. We analyzed two subgroups of RR-MS: one, 1 to 2 months after completing steroid treatment during relapse (post-acute; n = 13) and the other, over 2 years without any relapse (stable; n = 23)...
October 17, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28975998/peripheral-blood-microrna-and-vegfa-mrna-changes-following-electroconvulsive-therapy-implications-for-psychotic-depression
#5
E Kolshus, K M Ryan, G Blackshields, P Smyth, O Sheils, D M McLoughlin
OBJECTIVE: MicroRNAs are short, non-coding molecules that regulate gene expression. Here, we investigate the role of microRNAs in depression and electroconvulsive therapy (ECT). METHODS: We performed three studies: a deep sequencing discovery-phase study of miRNA changes in whole blood following ECT (n = 16), followed by a validation study in a separate cohort of patients pre-/post-ECT (n = 37) and matched healthy controls (n = 34). Changes in an experimentally validated gene target (VEGFA) were then analysed in patients pre-/post-ECT (n = 97) and in matched healthy controls (n = 53)...
October 4, 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/28966087/steroid-hormone-ecdysone-signaling-specifies-mushroom-body-neuron-sequential-fate-via-chinmo
#6
Giovanni Marchetti, Gaia Tavosanis
The functional variety in neuronal composition of an adult brain is established during development. Recent studies proposed that interactions between genetic intrinsic programs and external cues are necessary to generate proper neural diversity [1]. However, the molecular mechanisms underlying this developmental process are still poorly understood. Three main subtypes of Drosophila mushroom body (MB) neurons are sequentially generated during development and provide a good example of developmental neural plasticity [2]...
October 9, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28871468/microrna-expression-in-the-locus-coeruleus-entorhinal-cortex-and-hippocampus-at-early-and-middle-stages-of-braak-neurofibrillary-tangle-pathology
#7
Franc Llorens, Katrin Thüne, Pol Andrés-Benito, Waqas Tahir, Belén Ansoleaga, Karina Hernández-Ortega, Eulàlia Martí, Inga Zerr, Isidro Ferrer
The present study analyzes by RT-qPCR the expression of microRNA (miRNA)-27a-3p, miRNA-124-3p, miRNA-132-3p, and miRNA-143-3p in the locus coeruleus (LC), entorhinal cortex (EC), CA1 region of the hippocampus (CA1), and dentate gyrus (DG) of middle-aged (MA) individuals with no brain lesions and of cases at Braak and Braak stages I-II and II-IV of neurofibrillary tangle (NFT) pathology. The most affected region is the LC in which miRNA-27a-3p, miRNA-124-3p, and miRNA-143-3p show a trend to increase at stages I-II and are significantly up-regulated at stages III-IV when compared with MA...
October 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28837805/mir-361-targets-yes-associated-protein-yap-mrna-to-suppress-cell-proliferation-in-lung-cancer
#8
Suning Zhang, Zongang Liu, Lin Wu, Yudong Wang
Yes-associated protein (YAP) contributes to the development of multiple tumors, but the post-transcription modulation of YAP remains unexplored. Here, we present a new regulatory microRNA of YAP, miR-361, which directly targets YAP to inhibit cell proliferation in lung cancer. We used bioinformatics to predict that miR-361 could target 3'-untranslated region (3'UTR) of YAP mRNA. Luciferase reporter gene assays demonstrated that miR-361 could decrease the luciferase activities of 3'UTR vector of YAP. Furthermore, YAP expression was obviously abated by miR-361 using RT-PCR and immunoblotting in lung cancer A549 cells...
October 21, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28802862/microrna-21-expression-in-oligodendrocytes-and-correlation-with-low-myelin-mrnas-in-depression-and-alcoholism
#9
José Javier Miguel-Hidalgo, Katherine O Hall, Hannah Bonner, Anna M Roller, Maryam Syed, Casey J Park, Jana P Ball, Marc E Rothenberg, Craig A Stockmeier, Damian G Romero
MiR-21 is a microRNA implicated in cancer, development, and cardiovascular diseases and expressed in the central nervous system (CNS), especially after injury. However, the cellular expression of miR-21 in the adult CNS has not been clearly established either in mice or human subjects, while its alteration in psychiatric disorders is unknown. MiR-21 expression was characterized in reporter mice expressing β-galactosidase (LacZ) under the endogenous miR-21 promoter (miR-21/LacZ). Brain co-localization of miR-21/LacZ with specific neural markers was examined by double immunofluorescence in reporter mice, while extent of immunostaining for myelin basic protein and PDGFRα was determined in miR-21 knockout and wild-type mice...
October 3, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28782180/down-regulation-of-mir-10a-5p-in-synoviocytes-contributes-to-tbx5-controlled-joint-inflammation
#10
Nazim Hussain, Wenhua Zhu, Congshan Jiang, Jing Xu, Xiaoying Wu, Manman Geng, Safdar Hussain, Yongsong Cai, Ke Xu, Peng Xu, Yan Han, Jian Sun, Liesu Meng, Shemin Lu
MicroRNAs are considered to play critical roles in the pathogenesis of human inflammatory arthritis, including rheumatoid arthritis (RA). The purpose of this study was to determine the relationship between miR-10a-5p and TBX5 in synoviocytes and evaluate their contribution to joint inflammation. The expression of miR-10a-5p and TBX5 in the synovium of RA and human synovial sarcoma cell line SW982 stimulated by IL-1β was determined by RT-qPCR and Western blotting. The direct interaction between miR-10a-5p and TBX5 3'UTR was determined by dual-luciferase reporter assay in HeLa cells...
August 7, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28764913/microrna-124-targets-glucocorticoid-receptor-and-is-involved-in-depression-like-behaviors
#11
Shuang-Shuang Wang, Rong-Hao Mu, Cheng-Fu Li, Shu-Qi Dong, Di Geng, Qing Liu, Li-Tao Yi
Dysregulation of microRNA (miRNA) has been shown to be involved in early observations of depression. MicroRNA-124-3p (miR-124) is the most abundant microRNA in the brain. Previous studies have shown that miR-124 plays a major role in depression. Here we showed that miR-124 directly targeted glucocorticoid receptor (GR) in HEK 293 cells. In addition, inhibition of miR-124 by its antagomir (2nmol/every two days) could reverse the decrease of sucrose preference and the increase of immobility time in mice exposed to chronic corticosterone (CORT, 40mg/kg) injection...
October 3, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28747084/mir-615-5p-depresses-natural-killer-cells-cytotoxicity-through-repressing-igf-1r-in-hepatocellular-carcinoma-patients
#12
Mai Atef Rahmoon, Rana Ahmed Youness, Asmaa Ibrahim Gomaa, Mohamed Tarif Hamza, Imam Waked, Hend Mohamed El Tayebi, Ahmed Ihab Abdelaziz
miR-615-5p was characterized by our group as a tumour suppressor. IGF-1 R activates a downstream signalling pathway, well characterized in liver cells, however, its role in immunity especially Natural Killer cells (NKs) remains vague. This study aimed at investigating the regulatory role of miR-615-5p on IGF signalling and its impact on NKs cytotoxicity in HCC. Our results showed an upregulation in miR-615-5p and IGF-1 R in NKs of 130 HCC patients compared to 35 controls. Forcing the expression of miR-615-5p, repressed IGF-IR, attenuated NKs cytotoxicity, decreased CD56(dim), increased CD56(bright) NK subsets and reduced the cytotoxic markers NKG2D, TNF-α and perforins...
July 27, 2017: Growth Factors
https://www.readbyqxmd.com/read/28742208/effects-of-microrna-21-targeting-pitx2-on-proliferation-and-apoptosis-of-pituitary-tumor-cells
#13
M Cui, M Zhang, H-F Liu, J-P Wang
OBJECTIVE: Expression of pituitary homeobox 2 (PITX2) is significantly elevated in pituitary adenoma tissues, which also has lower microRNA (miR)-21 expression, indicating possible tumor-suppression role of miR-21. Bio-informatics analysis revealed targeting onto 3'-UTR of PITX2 by miR-21. This study aims to investigate the role of miR-21/PITX2 expression in proliferation and apoptosis of pituitary adenoma cells and pathogenesis. PATIENTS AND METHODS: A total of 48 pituitary adenoma samples were collected in parallel with 12 normal brain tissues and were recruited in this study...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28716528/treatment-with-trek1-and-trpc3-6-ion-channel-inhibitors-upregulates-microrna-expression-in-a-mouse-model-of-chronic-mild-stress
#14
İlay Buran, Ebru Önalan Etem, Ahmet Tektemur, Halit Elyas
Depression is a common mental disorder characterized by the mood of deep sadness. Recent studies have demonstrated that microRNAs and ion channels have significant roles in the etiopathogenesis of depression. Therefore, we investigated the effects of the TREK1 ion channel inhibitor anandamide and the TRPC3/6 inhibitor norgestimate on microRNA expression and antidepressant effect in the mouse chronic mild stress (CMS) model of depression. Male BALB/c mice were divided into groups as control, CMS, CMS+sertraline, CMS+anandamide, CMS+sertraline+anandamide, CMS+norgestimate and CMS+sertraline+norgestimate...
July 14, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28714388/the-prospective-role-of-micrornas-in-depression
#15
Zhiying Hu, Yuting Jiang, Xue Huo, Yang Yang, Henry Davies, Benson O A Botchway, Marong Fang
Depression is a debilitating disease that is affecting a growing number of patients both physically and mentally. In addition to the mood changes, depression causes cognitive impairment, including learning and memory dysfunction. Although depression studies have been going on for decades, the underlying mechanism still remains unclear. MicroRNAs (miRNAs), a type of small non-coding RNAs, predominantly control the expression of their target mRNAs to exert their functions. Some evidence has revealed the importance of miRNAs in the mechanism of depression though the studies are still in their infancy...
July 14, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28704935/entrainment-of-breast-cell-lines-results-in-rhythmic-fluctuations-of-micrornas
#16
Rafael Chacolla-Huaringa, Jorge Moreno-Cuevas, Victor Trevino, Sean-Patrick Scott
Circadian rhythms are essential for temporal (~24 h) regulation of molecular processes in diverse species. Dysregulation of circadian gene expression has been implicated in the pathogenesis of various disorders, including hypertension, diabetes, depression, and cancer. Recently, microRNAs (miRNAs) have been identified as critical modulators of gene expression post-transcriptionally, and perhaps involved in circadian clock architecture or their output functions. The aim of the present study is to explore the temporal expression of miRNAs among entrained breast cell lines...
July 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28689715/exploration-of-low-temperature-microrna-function-in-an-anoxia-tolerant-vertebrate-ectotherm-the-red-eared-slider-turtle-trachemys-scripta-elegans
#17
Kyle K Biggar, Kenneth B Storey
As a model for vertebrate long-term survival in oxygen-restricted environments, the red-eared slider turtle (Trachemys scripta elegans) can adapt at the biochemical level to survive in oxygen-free (anoxic) cold water (<10°C). This impressive ability is enabled through a coordinated suppression of energy-expensive, non-essential, cell processes. This study explored the anoxia-responsive expression of several microRNA species (miR-1a, -133, -17, -107, -148a, -21, -103, -210, -20a, -365 and -29b) in adult turtles exposed to 5h and 20h anoxia (at 5±1°C)...
August 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28687876/chromosome-21-encoded-micrornas-mrnas-impact-on-down-s-syndrome-and-trisomy-21-linked-disease
#18
P N Alexandrov, M E Percy, Walter J Lukiw
Down's syndrome (DS; also known as trisomy 21; T21) is caused by a triplication of all or part of human chromosome 21 (chr21). DS is the most common genetic cause of intellectual disability attributable to a naturally-occurring imbalance in gene dosage. DS incurs huge medical, healthcare, and socioeconomic costs, and there are as yet no effective treatments for this incapacitating human neurogenetic disorder. There is a remarkably wide variability in the 'phenotypic spectrum' associated with DS; the progression of symptoms and the age of DS onset fluctuate, and there is further variability in the biophysical nature of the chr21 duplication...
July 7, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28673667/circulating-micrornas-as-biomarkers-for-depression-many-candidates-few-finalists
#19
REVIEW
Heidi Yuan, David Mischoulon, Maurizio Fava, Michael W Otto
BACKGROUND: Recent research has highlighted the potential of microRNAs to serve as physiological indicators of disease process among clinically depressed patients. METHODS: In a comprehensive literature search through PubMed, we identified 23 articles comparing circulating (blood, plasma, or serum) microRNA expression levels in depressed versus healthy human subjects. Six studies examining circulatory microRNA expression through animal models of depression were also identified through the search and details of each study were outlined...
June 27, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28654094/inflammation-and-vascular-remodeling-in-the-ventral-hippocampus-contributes-to-vulnerability-to-stress
#20
J Pearson-Leary, D Eacret, R Chen, H Takano, B Nicholas, S Bhatnagar
During exposure to chronic stress, some individuals engage in active coping behaviors that promote resiliency to stress. Other individuals engage in passive coping that is associated with vulnerability to stress and with anxiety and depression. In an effort to identify novel molecular mechanisms that underlie vulnerability or resilience to stress, we used nonbiased analyses of microRNAs in the ventral hippocampus (vHPC) to identify those miRNAs differentially expressed in active (long-latency (LL)/resilient) or passive (short-latency (SL)/vulnerable) rats following chronic social defeat...
June 27, 2017: Translational Psychiatry
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