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https://www.readbyqxmd.com/read/28669717/mirnas-may-regulate-gabaergic-transmission-associated-genes-in-aged-rats-with-anesthetics-induced-recognition-and-working-memory-dysfunction
#1
Ligang Shan, Duo Ma, Chengshen Zhang, Wei Xiong, Yi Zhang
BACKGROUND: Isoflurane and sevoflurane are widely used anesthetics in surgery and administration of these anesthetics could lead to postoperative cognitive dysfunction (POCD). However, the mechanisms remain unclear. METHODS: Aged Wistar rats were exposed to isoflurane and sevoflurane for 2 or 4 hours. Recognition memory and spatial working memory were measured using Novel object recognition (NOR) and Y-maze test, respectively. Apoptotic cells were detected by TUNEL staining...
June 29, 2017: Brain Research
https://www.readbyqxmd.com/read/28656284/microrna-31-inhibits-tumor-invasion-and-metastasis-by-targeting-rhoa-in-human-gastric-cancer
#2
Fulin Ge, Changzheng Wang, Weihua Wang, Wenhui Liu, Benyan Wu
Previous studies have shown that microRNA-31 (miR-31) functions as a tumor-suppressor in various types of cancer. In the present study we found that miR-31 was significantly downregulated in gastric cancer (GC) as determined by microRNA (miRNA) array screening analysis. Although aberrant expression of miR-31 has been found in different types of cancer, its pathophysiological effect and role in tumorigenesis still remain to be elucidated. In the present study, we detected miR-31 expression in both metastatic GC cell lines and tissues that are potentially highly metastatic by real-time polymerase chain reaction (PCR)...
June 27, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28650568/enhanced-functional-properties-of-human-limbal-stem-cells-by-inhibition-of-the-mir-31-fih-1-p21-axis
#3
Zhiping Liu, Weijiao Zhan, Minzhi Zeng, Jinghong Chen, Huyong Zou, Zhiqun Min
OBJECTIVE: On the basis of the functional roles of the embryonic stem cell niche (ESCN) in the human limbal stem cells (LSCs), we proposed to explore the potential roles of microRNAs in regulating the self-renewal and differentiation of LSCs cultured in the ESCN. METHODS: The LSCs were cultured in different media, either in CnT-20 media or in CnT-20 + 20% ES culture supernatant (ESC-CM). The LSCs cultured in ESC-CM were then transfected with microRNA-31 (miR-31) mimic or antago-31...
June 26, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28624194/sustained-inhibition-of-hbv-replication-in%C3%A2-vivo-after-systemic-injection-of-aavs-encoding-artificial-antiviral-primary-micrornas
#4
Mohube Betty Maepa, Abdullah Ely, Wayne Grayson, Patrick Arbuthnot
Chronic infection with hepatitis B virus (HBV) remains a problem of global significance and improving available treatment is important to prevent life-threatening complications arising in persistently infected individuals. HBV is susceptible to silencing by exogenous artificial intermediates of the RNA interference (RNAi) pathway. However, toxicity of Pol III cassettes and short duration of silencing by effectors of the RNAi pathway may limit anti-HBV therapeutic utility. To advance RNAi-based HBV gene silencing, mono- and trimeric artificial primary microRNAs (pri-miRs) derived from pri-miR-31 were placed under control of the liver-specific modified murine transthyretin promoter...
June 16, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28623129/increased-expression-of-microrna-31-5p-inhibits-cell-proliferation-migration-and-invasion-via-regulating-sp1-transcription-factor-in-hepg2-hepatocellular-carcinoma-cell-line
#5
Guoliang Zhao, Chuangye Han, Zhi Zhang, Lei Wang, Jing Xu
Accumulating evidence has suggested that microRNA-31-5p (miR-31-5p) is dysfunctional in hepatocellular carcinoma (HCC). However, the molecular mechanism of HCC remains unclear. In this study, we investigated the role of miR-31-5p in tumor formation and development of HCC. The expression of miR-31-5p was detected in HCC tissues, corresponding adjacent tissues, normal liver tissues, and HCC cell lines. miR-31-5p mimics and an inhibitor were transfected into HepG2 cells to assess the effects of miR-31-5p on cell proliferation, apoptosis, cell cycle, migration, and invasion assays...
August 19, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28607463/exploring-a-role-for-regulatory-mirnas-in-wound-healing-during-ageing-involvement-of-mir-200c-in-wound-repair
#6
Eerik Aunin, David Broadley, Mohammed I Ahmed, Andrei N Mardaryev, Natalia V Botchkareva
Multiple factors and conditions can lead to impaired wound healing. Chronic non-healing wounds are a common problem among the elderly. To identify microRNAs negatively impacting the wound repair, global miRNA profiling of wounds collected from young and old mice was performed. A subset of miRNAs that exhibited an age-dependent expression pattern during wound closure was identified, including miR-31 and miR-200c. The expression of miR-200 family members was markedly downregulated upon wounding in both young and aged mice, with an exception of acute upregulation of miR-200c at the early phase of wound healing in aged skin...
June 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28601063/molecular-mechanisms-of-ovarian-carcinoma-metastasis-key-genes-and-regulatory-micrornas
#7
REVIEW
E A Braga, M V Fridman, N E Kushlinskii
Metastasis of primary tumors progresses stepwise - from change in biochemistry, morphology, and migratory patterns of tumor cells to the emergence of receptors on their surface that facilitate directional migration to target organs followed by the formation of a specific microenvironment in a target organ that helps attachment and survival of metastatic cells. A set of specific genes and signaling pathways mediate this process under control of microRNA. The molecular mechanisms underlying biological processes associated with tumor metastasis are reviewed in this publication using ovarian cancer, which exhibits high metastatic potential, as an example...
May 2017: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/28600480/mir-193a-3p-is-a-key-tumor-suppressor-in-ulcerative-colitis-associated-colon-cancer-and-promotes-carcinogenesis-through-up-regulation-of-il17rd
#8
Joel Pekow, Katherine Meckel, Urszula Dougherty, Yong Huang, Xindi Chen, Anas Almoghrabi, Reba Mustafi, Fatma Ayaloglu-Butun, Zifeng Deng, Haider I Haider, John Hart, David T Rubin, John H Kwon, Marc Bissonnette
Purpose: Patients with ulcerative colitis (UC) are at increased risk for colorectal cancer, although mechanisms underlying neoplastic transformation are poorly understood. We sought to evaluate the role of microRNAs in neoplasia development in this high-risk population.   <p>Experimental Design: Tissue from 12 controls, 9 UC patients without neoplasia, and 11 UC patients with neoplasia was analyzed. miRNA array analysis was performed and select miRNAs assayed by real-time PCR on the discovery cohort and a validation cohort...
June 9, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28600172/conditional-knockout-of-microrna-31-promotes-the-development-of-colitis-associated-cancer
#9
Zhaoyuan Liu, Jing Bai, Lingyun Zhang, Fangzhou Lou, Fang Ke, Wei Cai, Honglin Wang
MicroRNA-31 (miR-31) is an evolutionarily conserved microRNA, and its biological function in colorectal cancer and other cancers is controversial. In this study, we identified the host gene of mouse miR-31 and found that miR-31 was over-expressed in both human colorectal cancer and mouse colon cancer models. We here developed a miR-31 conditional knockout mouse model that allows for colon epithelium specific deletion of miR-31 to investigate its functionality in colon cancer development. We demonstrated that mice with miR-31 conditional deletion resulted in more severe colitis-associated cancer than wild-type, and we further identified Wdr5 as an important target of miR-31...
June 6, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28574835/prognostic-micrornas-in-upper-tract-urothelial-carcinoma-multicenter-and-international-validation-study
#10
Laura Izquierdo, Ruth Montalbo, Mercedes Ingelmo-Torres, Carme Mallofré, Miguel Ramírez-Backhaus, Jose Rubio, Antoine G Van der Heijden, Ewout Schaafsma, Antonio Lopez-Beltran, A Blanca, Nathan Lawrentschuk, Antonio Alcaraz, Lourdes Mengual
OBJECTIVE: To validate previously discovered miRNAs (miR-31-5p and miR-149-5p) as prognostic factors for UTUC in an independent cohort of UTUC patients. PATIENTS AND METHODS: Multicenter, international and retrospective study of formalin-fixed paraffin-embedded tissue samples from 103 UTUC patients (45 progressing and 58 non-progressing) who underwent radical nephroureterectomy. Total RNA was isolated and reverse transcribed. The expression of target miRNAs (miR-31-5p and miR-149-5p) and the endogenous control miR-218-5p was evaluated in all samples by reverse transcription quantitative PCR...
May 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28559988/mir-31-is-involved-in-the-high-glucose-suppressed-osteogenic-differentiation-of-human-periodontal-ligament-stem-cells-by-targeting-satb2
#11
Lei Zhen, Xuewei Jiang, Yan Chen, Desheng Fan
Diabetes mellitus (DM) is a chronic metabolic disease that gives rise to impaired bone remodeling. Increasing evidences have shown that miRNAs are associated with osteogenic differentiation of stem cells. However, the underlying mechanism that links DM-induced HG conditions and impaired osteogenic differentiation capacity of periodontal ligament stem cells (PDLSCs) still remains unclear. In this study, we found that diabetic mice with increased miR-31 level in periodontal ligaments exhibited greater bone loss...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28554991/changes-of-microrna-levels-in-plasma-of-patients-with-rectal-cancer-during-chemoradiotherapy
#12
Peter Jo, Azadeh Azizian, Junius Salendo, Frank Kramer, Markus Bernhardt, Hendrik A Wolff, Jens Gruber, Marian Grade, Tim Beißbarth, B Michael Ghadimi, Jochen Gaedcke
Since the response to chemoradiotherapy in patients with locally advanced rectal cancer is heterogeneous, valid biomarkers are needed to monitor tumor response. Circulating microRNAs are promising candidates, however analyses of circulating microRNAs in rectal cancer are still rare. 111 patients with rectal cancer and 46 age-matched normal controls were enrolled. The expression levels of 30 microRNAs were analyzed in 17 pre-treatment patients' plasma samples. Differentially regulated microRNAs were validated in 94 independent patients...
May 27, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28543764/mir-31-regulates-spermatogonial-stem-cells-meiosis-via-targeting-stra8
#13
Yingjie Wang, Qisheng Zuo, Yulin Bi, Wenhui Zhang, Jin Jin, Liangliang Zhang, Ya-Ni Zhang, Bichun Li
Stra8 (stimulated by retinoic acid gene 8) is a specific gene that is expressed in mammalian germ cells during transition from mitosis to meiosis and plays a key role in the initiation of meiosis in mammals and birds. So, the evaluation of the Stra8 pathway in cSSCs may provide a deeper insight into mammalian spermatogenesis. miRNA was also an important regulating factor for meiosis of SSCs. However, there is currently no data indicating that miRNA regulate the meiosis of SSCs via Stra8. Here, we predicted the prospective miRNA targeting to Stra8 using the online Bioinformatics database-Targetscan, and performed an analysis of the dual-luciferase recombinant vector, pGL3-CMV-LUC-MCS-Stra8-3'UTR...
May 23, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28530712/the-microrna-mir-31-inhibits-cd8-t-cell-function-in-chronic-viral-infection
#14
Howell F Moffett, Adam N R Cartwright, Hye-Jung Kim, Jernej Godec, Jason Pyrdol, Tarmo Äijö, Gustavo J Martinez, Anjana Rao, Jun Lu, Todd R Golub, Harvey Cantor, Arlene H Sharpe, Carl D Novina, Kai W Wucherpfennig
During infection, antigen-specific T cells undergo tightly regulated developmental transitions controlled by transcriptional and post-transcriptional regulation of gene expression. We found that the microRNA miR-31 was strongly induced by activation of the T cell antigen receptor (TCR) in a pathway involving calcium and activation of the transcription factor NFAT. During chronic infection with lymphocytic choriomeningitis virus (LCMV) clone 13, miR-31-deficent mice recovered from clinical disease, while wild-type mice continued to show signs of disease...
July 2017: Nature Immunology
https://www.readbyqxmd.com/read/28528141/portland-cement-induces-human-periodontal-ligament-cells-to-differentiate-by-upregulating-mir-146a
#15
Min-Ching Wang, Li-Yin Yeh, Wen-Yu Shih, Wan-Chun Li, Kuo-Wei Chang, Shu-Chun Lin
BACKGROUND/PURPOSE: Bioaggregates such as Portland cement (PC) can be an economical alternative for mineral trioxide aggregate (MTA) with additional benefit of less discoloration. MTA has been known to induce differentiations of several dental cells. MicroRNAs are important regulators of biological processes, including differentiation, physiologic homeostasis, and disease progression. This study is to explore how PC enhances the differentiation of periodontal ligament (PDL) cells in microRNAs level...
May 18, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28526071/retinoid-acid-induced-microrna-31-5p-suppresses-myogenic-proliferation-and-differentiation-by-targeting-camkii%C3%AE
#16
Bo Liu, Chao Liu, Wei Cong, Nan Li, Nan Zhou, Yi Tang, Chao Wei, Han Bai, Ying Zhang, Jing Xiao
BACKGROUND: We previously reported that Wnt5a/CaMKIIδ (calcium/calmodulin-dependent protein kinase II delta) pathway was involved in the embryonic tongue deformity induced by excess retinoic acid (RA). Our latest study found that the expression of miR-31-5p, which was predicted to target the 3'UTR of CamkIIδ, was raised in the RA-treated embryonic tongue. Thus, we hypothesized that the excess RA regulated Wnt5a/CaMKIIδ pathway through miR-31-5p in embryonic tongue. METHODS: C2C12 myoblast line was employed as an in vitro model to examine the suppression of miR-31-5p on CamkIIδ expression, through which RA impaired the myoblast proliferation and differentiation in embryonic tongue...
May 11, 2017: Skeletal Muscle
https://www.readbyqxmd.com/read/28490741/circulating-mirna-21-5p-as-a-diagnostic-biomarker-for-pancreatic-cancer-evidence-from-comprehensive-mirna-expression-profiling-analysis-and-clinical-validation
#17
Kai Qu, Xing Zhang, Ting Lin, Tian Liu, Zhixin Wang, Sushun Liu, Lei Zhou, Jichao Wei, Hulin Chang, Ke Li, Zheng Wang, Chang Liu, Zheng Wu
Pancreatic cancer (PC) is a highly fatal disease worldwide and is often misdiagnosed in its early stages. The exploration of novel non-invasive biomarkers will definitely benefit PC patients. Recently, circulating miRNAs in body fluids are emerging as non-invasive biomarkers for PC diagnosis. In this study, we first conducted comprehensive robust rank aggregation (RRA) analysis based on 21 published miRome profiling studies. We statistically identified and clinically validated a miRNA expression pattern in PC patients...
May 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28470118/changes-in-high-density-lipoprotein-carried-mirna-contribution-to-the-plasmatic-pool-after-consumption-of-dietary-trans-fat-in-healthy-men
#18
Véronique Desgagné, Renée Guérin, Simon-Pierre Guay, François Corbin, Patrick Couture, Benoit Lamarche, Luigi Bouchard
AIM: High-density lipoproteins (HDLs) are associated to cardioprotection and transport functional miRNAs in circulation. The aim of this study is to assess whether consumption of trans fatty acids (TFAs) modifies the HDL-carried miRNA concentration and their contribution to the plasmatic pool. METHODS: In a double-blind, randomized crossover controlled study, nine healthy men were fed each of three isoenergetic 4-week diets: first, rich in industrial TFAs; second, rich in TFAs from ruminants; third, low in TFAs...
May 4, 2017: Epigenomics
https://www.readbyqxmd.com/read/28455659/differential-expression-of-circulating-mir-21-mir-142-3p-and-mir-155-in-renal-transplant-recipients-with-impaired-graft-function
#19
Sepideh Zununi Vahed, Ahmad Poursadegh Zonouzi, Hossein Ghanbarian, Morteza Ghojazadeh, Nasser Samadi, Yadollah Omidi, Mohammadreza Ardalan
BACKGROUND: The discovery of circulating microRNAs (miRNAs), as potential noninvasive diagnostic biomarkers, has opened new avenues of research for identifying patients with chronic failure in renal transplantation. The present study aimed to investigate the expression levels of four immune-related miRNAs (miR-21, miR-31, miR-142-3p and miR-155) in plasma samples of renal recipients. METHODS: The plasma expression levels of the miRNAs were evaluated by quantitative real-time PCR (qPCR) in 53 renal recipients with long-term stable allograft function, SGF (N = 27), and with biopsy-proven interstitial fibrosis and tubular atrophy (IFTA) (N = 26) and also healthy controls (N = 15)...
April 28, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28454216/microrna-31-functions-as-an-oncogenic-microrna-in-cutaneous-squamous-cell-carcinoma-cells-by-targeting-rhotbt1
#20
Nengxing Lin, Yu Zhou, Xin Lian, Yating Tu
Cutaneous squamous cell carcinoma (cSCC) is a malignancy of epidermal keratinocytes that is responsible for ~20% of annual skin cancer-associated mortalities. Accumulating evidence demonstrates that the dysregulation of micro (mi)RNAs serves a significant role in the tumorigenesis and progression of human cSCC. MicroRNA-31 (miR-31) is upregulated in cSCC and is involved in cSCC development. However, the underlying mechanism remains unclear. The present study demonstrated that miR-31 is upregulated in the cSCC cell line, A-431, and that miR-31 expression contributes to the cell proliferation and invasion of cSCC...
March 2017: Oncology Letters
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