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https://www.readbyqxmd.com/read/29781038/downregulation-of-lncrna-malat1-contributes-to-renal-functional-improvement-after-duodenal-jejunal-bypass-in-a-diabetic-rat-model
#1
Dong Wu, Yu-Gang Cheng, Xin Huang, Ming-Wei Zhong, Shao-Zhuang Liu, San-Yuan Hu
Ameliorated renal function has been reported after bariatric surgery, but the mechanisms underlying this phenomenon are not well-studied. To investigate whether the long non-coding RNA (lncRNA) MALAT1 mediates the amelioration of diabetic nephropathy after duodenal-jejunal bypass (DJB) surgery, rats were assigned randomly into four groups: diabetic (DM) group, DM with DJB surgery group, DM with sham surgery group, and healthy control group. Food intake, body weight, oral glucose tolerance test (OGTT), urine albumin excretion rate (UAER), and glomerular filtration rate (GFR) were measured and histological examination of renal sections was performed...
May 21, 2018: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/29777909/lncrnas-as-potential-molecular-biomarkers-for-the-clinicopathology-and-prognosis-of-glioma-a-systematic-review-and-meta-analysis
#2
REVIEW
Qian Zhou, Jing Liu, Jing Quan, Wenlan Liu, Hui Tan, Weiping Li
BACKGROUND: An increasing number of studies have shown that long noncoding RNAs (lncRNAs) play important roles in the development of glioma. However, a systematic review and meta-analysis to evaluate the clinical value of lncRNA expression in glioma patients is lacking. We performed this study to assess the relationship between the expression of various lncRNAs and the clinicopathological features, diagnosis and prognosis of glioma. MATERIALS AND METHODS: Eligible studies were identified through a comprehensive literature search...
May 16, 2018: Gene
https://www.readbyqxmd.com/read/29772549/long-non-coding-rna-and-polycomb-an-intricate-partnership-in-cancer-biology
#3
Cyrinne Achour, Francesca Aguilo
High-throughput analyses have revealed that the vast majority of the transcriptome does not code for proteins. These non-translated transcripts, when larger than 200 nucleotides, are termed long non-coding RNAs (lncRNAs), and play fundamental roles in diverse cellular processes. LncRNAs are subject to dynamic chemical modification, adding another layer of complexity to our understanding of the potential roles that lncRNAs play in health and disease. Many lncRNAs regulate transcriptional programs by influencing the epigenetic state through direct interactions with chromatin-modifying proteins...
June 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/29750307/exosomal-malat1-derived-from-oxidized-low-density-lipoprotein-treated-endothelial-cells-promotes-m2-macrophage-polarization
#4
Chaoyang Huang, Jie Han, Yutao Wu, Shan Li, Qiwen Wang, Wenjuan Lin, Jianhua Zhu
Oxidized low-density lipoprotein (oxLDL)-induced injury and apoptosis of endothelial cells are important initial events in numerous cardiovascular diseases. Following activation by oxLDL, monocytes adhere to endothelial cells, migrate into the subendothelial spaces and then undergo differentiation into macrophages, which subsequently induces the formation of atherosclerotic lesions. However, the mechanisms underlying the activation of macrophage differentiation by oxLDL-treated endothelial cells remain unclear...
May 7, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29746487/loss-of-malat1-does-not-modify-age-or-diet-induced-adipose-tissue-accretion-and-insulin-resistance-in-mice
#5
Sophie Carter, Stéphanie Miard, Louise Boivin, Sandrine Sallé-Lefort, Frédéric Picard
Several studies have suggested that signals emerging from white adipose tissue can contribute to the control of longevity. In turn, aging is associated with perturbed regulation and partitioning of fat depots and insulin resistance. However, the exact mechanisms involved in these relationships remain undetermined. Using RAP-PCR on adipose tissue of young and old male mice coupled with qPCR validation, we have uncovered the long non-coding RNA Malat1 as a gene robustly downregulated in visceral white adipose tissue (vWAT) during normal aging in male mice and men...
2018: PloS One
https://www.readbyqxmd.com/read/29741283/long-noncoding-rna-malat1-promotes-osterix-expression-to-regulate-osteogenic-differentiation-by-targeting-mirna-143-in-human-bone-marrow-derived-mesenchymal-stem-cells
#6
Yuan Gao, Fei Xiao, Chenglong Wang, Chuandong Wang, Penglei Cui, Xiaoling Zhang, Xiaodong Chen
Osteogenic differentiation of human bone marrow-derived mesenchymal stem cells (hBMSCs) is essential for the human bone formation, and emerging evidence shows that long non-coding RNAs (lncRNAs) play important roles in hBMSC osteogenic differentiation. MALAT1 is often regarded as a tumor-related lncRNA, but its function in mesenchymal stem cell differentiation remains to be defined. In this study, we aimed to investigate whether MALAT1 regulates Osterix (Osx) expression by sponging miR-143 to promote hBMSC osteogenic differentiation...
May 9, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29740493/bioinformatic-analysis-and-prediction-of-the-function-and-regulatory-network-of-long-non-coding-rnas-in-hepatocellular-carcinoma
#7
Ming-Rong Cao, Ze-Ping Han, Ji-Ming Liu, Yu-Guang Li, Yu-Bing Lv, Jia-Bin Zhou, Jin-Hua He
Computational analysis and bioinformatics have significantly advanced the ability of researchers to process and analyze biological data. Molecular data from human and model organisms may facilitate drug target validation and identification of biomarkers with increased predictive accuracy. The aim of the present study was to investigate the function of long non-coding RNAs (lncRNAs) in hepatocellular carcinoma (HCC) using online databases, and to predict their regulatory mechanism. HCC-associated lncRNAs, their downstream transcription factors and microRNAs (miRNAs/miRs), as well as the HCC-associated target genes, were identified using online databases...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29739426/malat1-a-druggable-long-non-coding-rna-for-targeted-anti-cancer-approaches
#8
REVIEW
Nicola Amodio, Lavinia Raimondi, Giada Juli, Maria Angelica Stamato, Daniele Caracciolo, Pierosandro Tagliaferri, Pierfrancesco Tassone
The deeper understanding of non-coding RNAs has recently changed the dogma of molecular biology assuming protein-coding genes as unique functional biological effectors, while non-coding genes as junk material of doubtful significance. In the last decade, an exciting boom of experimental research has brought to light the pivotal biological functions of long non-coding RNAs (lncRNAs), representing more than the half of the whole non-coding transcriptome, along with their dysregulation in many diseases, including cancer...
May 8, 2018: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/29736319/lncrna-malat1-promotes-tumor-growth-and-metastasis-by-targeting-mir-124-foxq1-in-bladder-transitional-cell-carcinoma-btcc
#9
Dechao Jiao, Zongming Li, Ming Zhu, Yanli Wang, Gang Wu, Xinwei Han
Mounting evidence shows that the long non-coding RNA MALAT1 plays a pivotal role in tumorigenesis and metastasis, but the functional significance of MALAT1 in bladder transitional cell carcinoma (BTCC) remains unclear. MALAT1 expression was measured in 56 BTCC patients and 2 BTCC cell lines by real-time PCR. The effects of MALAT1 on BTCC cells were investigated by over-expression approaches in vitro and in vivo . Insights of the mechanism of competitive endogenous RNAs (ceRNAs) were validated through bioinformatic analysis and luciferase assay...
2018: American Journal of Cancer Research
https://www.readbyqxmd.com/read/29735442/-role-of-long-noncoding-rna-malat1-promotes-the-occurrence-and-progression-of-cutaneous-squamous-cell-carcinoma
#10
Shan-Shan Li, Liang Zhou, Lin Gao, Ying-Hui Wang, Zhen-Hua Ding
OBJECTIVE: To investigate the role of long noncoding RNA MALAT1 in the occurrence and progression of cutaneous squamous cell carcinoma (CSCC). METHODS: Fifty-five tissue samples of CSCC and 10 normal epidermal tissues were collected for examination of the expression of MALAT1 using q-PCR and in situ hybridization. Human CSCC A431 cells were transfected with small interfering RNAs (siNC, siMALAT1-1, and siMALAT1-2) using Lipofectamine2000 to knock down MALAT1 gene, and the changes in the cell migration, invasion, mobility and proliferation were analyzed using Transwell assay, wound healing assay, and CCK-8 assay; the changes in the expressions of the related factors of epithelial-mesenchymal transition (EMT), including E-cadherin, vimentin, and β-catenin, were detected using qRT-PCR...
April 20, 2018: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/29731641/combination-of-long-noncoding-rna-malat1-and-carcinoembryonic-antigen-for-the-diagnosis-of-malignant-pleural-effusion-caused-by-lung-cancer
#11
Wan-Wei Wang, Xi-Lei Zhou, Ying-Jian Song, Chang-Hua Yu, Wei-Guo Zhu, Yu-Suo Tong
Purpose: Long noncoding RNAs (lncRNAs) are present in body fluids, but their potential as tumor biomarkers has never been investigated in malignant pleural effusion (MPE) caused by lung cancer. The aim of this study was to assess the clinical significance of lncRNAs in pleural effusion, which could potentially serve as diagnostic and predictive markers for lung cancer-associated MPE (LC-MPE). Patients and methods: RNAs from pleural effusion were extracted in 217 cases of LC-MPE and 132 cases of benign pleural effusion (BPE)...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29719612/comprehensive-analysis-of-aberrantly-expressed-lncrnas-and-construction-of-cerna-network-in-gastric-cancer
#12
Kanagaraj Arun, Ganesan Arunkumar, Duraisamy Bennet, Servarayan Murugesan Chandramohan, Avaniyapuram Kannan Murugan, Arasambattu Kannan Munirajan
Gastric cancer remains fifth most common cancer often diagnosed at an advanced stage and is the second leading cause of cancer-related death worldwide. Long non-coding RNAs (lncRNAs) involved in various cellular pathways are essential for tumor occurrence and progression and they have high potential to promote or suppress the expression of many genes. In this study, we profiled 19 selected cancer-associated lncRNAs in thirty gastric adenocarcinomas and matching normal tissues by qRT-PCR. Our results showed that most of the lncRNAs were significantly upregulated (12/19)...
April 6, 2018: Oncotarget
https://www.readbyqxmd.com/read/29710466/tgf-regulates-the-erk-mapk-pathway-independent-of-the-smad-pathway-by-repressing-mirna-124-to-increase-malat1-expression-in-nasopharyngeal-carcinoma
#13
Mingyu Du, Wei Chen, Wenjun Zhang, Xiao-Kang Tian, Tingting Wang, Jing Wu, Jiajia Gu, Nan Zhang, Zhi-Wei Lu, Lu-Xi Qian, Qian Fei, Yan Wang, Fanyu Peng, Xia He, Li Yin
Transforming growth factor beta (TGF-?), a pleiotropic cytokine, promotes cell proliferation and migration in multiple cancers, including nasopharyngeal carcinoma (NPC). microRNA-124 (miR-124) becomes downregulated in NPC and inhibits the tumorigenesis of this disease. However, the role of miR-124 in TGF-?-induced NPC development remains unknown. In this study, constant TGF-? stimulation repressed miR-124 expression, whereas miR-124 overexpression antagonized TGF-?-promoted NPC cell growth and migration. miR-124 overexpression decreased p-SMAD2/3, SMAD4, and p-ERK levels, indicating that ectopic miR-124 overexpression inhibited SMAD and non-SMAD pathways...
March 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29704494/metformin-a-first-line-drug-for-type-2-diabetes-mellitus-disrupts-the-malat1-mir-142-3p-sponge-to-decrease-invasion-and-migration-in-cervical-cancer-cells
#14
Chenglai Xia, Shaofeng Liang, Zhihong He, Xiaolan Zhu, Ruihong Chen, Jinman Chen
The molecular mechanisms underlying the anti-neoplastic properties of metformin, a first-line drug for type 2 diabetes, remain elusive. To explore the novel anti-neoplastic mechanisms of metformin, the transwell chamber and wound-healing assays were used to evaluate its effects on the migration and invasion of human cervical cancer cells. Real-time PCR and Western blotting were used to measure the gene and protein expression, respectively, of microRNA (miRNA) miR-142-3p, long non-coding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript-1 (MALAT1), and high-mobility group AT-hook 2 (HMGA2)...
April 25, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29704485/bml-111-alleviates-acute-lung-injury-through-regulating-the-expression-of-lncrna-malat1
#15
Hongbin Li, Huijuan Shi, Ning Ma, Panpan Zi, Qilong Liu, Rongqing Sun
BML-111 is a lipoxin receptor agonist that plays a vital role on inflammation. MALAT1 is reported to mediate lung injury. ALI rat model was established using the method of venous cannula. Pulmonary microvascular endothelial cells (PMVEC) of rats were isolated using immunomagnetic separation method. Hematoxylin-eosin (HE) staining was performed to observe the lung injury degree. Real-time PCR and western blot were performed to detect the genes expression. ELIAS was used to determine the level of TNF-α and IL-6...
April 25, 2018: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29702091/inhibition-of-malat1-sensitizes-liver-cancer-cells-to-5-flurouracil-by-regulating-apoptosis-through-ikk%C3%AE-nf-%C3%AE%C2%BAb-pathway
#16
Zhenguo Pan, De-Gang Ji, Lian-Yue Guan, Xiao Luo, Feng Ma, Bin Yang, Hong-Yu Liu
Metastasis associated lung adenocarcinoma transcript 1 (MALAT1) is involved in tumor cell growth process. However, its role and molecular mechanism in liver cancer is still not fully understood. In this study, we found that MALAT1 was significantly expressed in liver cancer cell lines. And knockdown of MALAT1 suppressed proliferation, migration and invasion of HepG2 cells, accompanied with decrease of Rho-associated coiled-coil-forming protein kinase 1 (ROCK1), α-smooth muscle actin (α-SMA), N-cadherin, Vimentin and TWIST...
April 24, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29695738/malat1-an-epigenetic-regulator-of-inflammation-in-diabetic-retinopathy
#17
Saumik Biswas, Anu Alice Thomas, Shali Chen, Erfan Aref-Eshghi, Biao Feng, John Gonder, Bekim Sadikovic, Subrata Chakrabarti
Despite possessing limited protein-coding potential, long non-coding RNAs (lncRNAs) have been implicated in a myriad of pathologic conditions. Most well documented in cancer, one prominent intergenic lncRNA known as MALAT1 is notorious for its role in impacting epigenetic mechanisms. In this study, we established a novel epigenetic paradigm for MALAT in diabetic retinopathy (DR) by employing siRNA-mediated MALAT1 knockdown in human retinal endothelial cells (HRECs), a Malat1 knockout animal model, vitreous humor from diabetic patients, pharmacological inhibitors for histone and DNA methylation, RNA immunoprecipitation, western blotting, and a unique DNA methylation array to determine glucose-related alterations in MALAT1...
April 25, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29693187/malat1-affects-ovarian-cancer-cell-behavior-and-patient-survival
#18
Qunbo Lin, Wencai Guan, Weimin Ren, Lingyun Zhang, Jinguo Zhang, Guoxiong Xu
Epithelial ovarian cancer (EOC) is one of the most lethal malignancies of the female reproductive organs. Increasing evidence has revealed that long non‑coding RNAs (lncRNAs) participate in tumorigenesis. Metastasis associated lung adenocarcinoma transcript 1 (MALAT1) is an lncRNA and plays a role in various types of tumors. However, the function of MALAT1 on cellular behavior in EOC remains unclear. The current study explored the expression of MALAT1 in ovarian cancer tissues and in EOC cell lines. Quantitative RT‑PCR analysis revealed that the expression of MALAT1 was higher in human ovarian malignant tumor tissues and EOC cells than in normal ovarian tissues and non‑tumorous human ovarian surface epithelial cells, respectively...
April 19, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29683112/a-panel-of-serum-noncoding-rnas-for-the-diagnosis-and-monitoring-of-response-to-therapy-in-patients-with-breast-cancer
#19
Sheng-Kai Huang, Qing Luo, Hua Peng, Jia Li, Mei Zhao, Jia Wang, Yu-Yu Gu, Yan Li, Peng Yuan, Guo-Hua Zhao, Chang-Zhi Huang
BACKGROUND The aim of this study was to identify a panel of serum noncoding RNAs (ncRNAs) as potential diagnostic and prognostic biomarkers for breast cancer. MATERIAL AND METHODS Patients with breast cancer (n=30), and normal controls (n=30) were included in the 'training set.' A 'validation set' included cases of breast cancer (n=128) and controls (n=77). All cases provided blood samples for serum analysis. All cases of breast cancer were confirmed histologically and were staged. Quantitative reverse transcription polymerase chain reaction (RT-qPCR) was used to detect the expression of 11 candidate ncRNAs, including long noncoding RNAs (lncRNAs) and microRNAs (miRNAs), in the serum...
April 23, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29665941/-research-on-ralation-of-long-non-coding-rna-with-diffuse-large-b-cell-lymphomas-review
#20
Yan-Yuan Wu, Yi-Ran Xing, Duo-Nan Yu
Diffuse large B-cell lymphoma (DLBCL) accounts for approximately 30% of the non-Hodgkin's lymphoma patients. The underlying molecular mechanism of its pathogenesis is not well defined and the survival rate of DLBCL patients is very low. Moreover, the annual incidence and mortality of DLBCL is still rising. Accordingly, identification and characterization of new molecular pathways of DLBCL will lead to the development of novel diagnostic markers and molecular therapeutic targets. Long non-coding RNAs (LncRNA) are non-coding RNAs with a length greater than 200 bp in eukaryotic cells, which can regulate the expression of their target genes at the transcriptional and post transcriptional levels...
April 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
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