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https://www.readbyqxmd.com/read/29156771/novel-post-transcriptional-and-post-translational-regulation-of-pro-apoptotic-protein-bok-and-anti-apoptotic-protein-mcl-1-determine-the-fate-of-breast-cancer-cells-to-survive-or-die
#1
Benjamin Onyeagucha, Panneerdoss Subbarayalu, Nourhan Abdelfattah, Subapriya Rajamanickam, Santosh Timilsina, Rosa Guzman, Carla Zeballos, Vijay Eedunuri, Sanjay Bansal, Tabrez Mohammad, Yidong Chen, Ratna K Vadlamudi, Manjeet K Rao
Deregulation of apoptosis is central to cancer progression and a major obstacle to effective treatment. The Bcl-2 gene family members play important roles in the regulation of apoptosis and are frequently altered in cancers. One such member is pro-apoptotic protein Bcl-2-related Ovarian Killer (BOK). Despite its critical role in apoptosis, the regulation of BOK expression is poorly understood in cancers. Here, we discovered that miR-296-5p regulates BOK expression by binding to its 3'-UTR in breast cancers...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156693/cdk3-target-of-mir-4469-suppresses-breast-cancer-metastasis-via-inhibiting-wnt-%C3%AE-catenin-pathway
#2
Ting Cao, Tian Xiao, Guanqun Huang, Yafei Xu, Joe Jiang Zhu, Kaixin Wang, Wencai Ye, Hong Guan, Jinsong He, Duo Zheng
Cyclin-dependent kinase 3 (CDK3), a member of CDK family, is involved in G0/G1 and G1/S cell cycle transitions. Although several researchers discovered that CDK3 related to cell growth in some kinds of cancer, the functions of CDK3 during tumor development remains unclear. Here, we first found that the expression of CDK3 was higher in primary tumors of non-metastatic breast cancer compared with those in metastatic breast cancer. Overexpression of CDK3 suppressed cell migration and invasion of breast cancer cells, and decreased the metastasis in nude mice...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29152905/the-gait-translational-control-system
#3
REVIEW
Abul Arif, Peng Yao, Fulvia Terenzi, Jie Jia, Partho Sarothi Ray, Paul L Fox
The interferon (IFN)-γ-activated inhibitor of translation (GAIT) system directs transcript-selective translational control of functionally related genes. In myeloid cells, IFN-γ induces formation of a multiprotein GAIT complex that binds structural GAIT elements in the 3'-untranslated regions (UTRs) of multiple inflammation-related mRNAs, including ceruloplasmin and VEGF-A, and represses their translation. The human GAIT complex is a heterotetramer containing glutamyl-prolyl tRNA synthetase (EPRS), NS1-associated protein 1 (NSAP1), ribosomal protein L13a (L13a), and glyceraldehyde-3-phosphate dehydrogenase (GAPDH)...
November 20, 2017: Wiley Interdisciplinary Reviews. RNA
https://www.readbyqxmd.com/read/29152108/microrna-31-suppresses-the-self-renewal-capability-of-%C3%AE-2%C3%AE-1-liver-tumor-initiating-cells-by-targeting-isl1
#4
Yuan Zhang, Wei Zhao, Haibo Han, Sheng Li, Dongji Chen, Zhiqian Zhang
Accumulating evidence demonstrates that miRNAs, a class of small non-coding RNAs, are involved in the regulation of tumor-initiating cells (TICs) which are considered to be the origin of cancer development according to the cancer stem cell hypothesis. We have previously identified that miR-31 may play suppressive roles in α2δ1(+) hepatocellular carcinoma (HCC) TICs. Here, we confirm that the expression of miR-31 is significantly downregulated in α2δ1(+) HCC TICs. Overexpression of miR-31 in α2δ1(+) HCC TICs results in significant suppression of the self-renewal and tumorigenicity abilities of these cells...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29151817/microrna-214-3p-inhibits-proliferation-and-cell-cycle-progression-by-targeting-melk-in-hepatocellular-carcinoma-and-correlates-cancer-prognosis
#5
Yue Li, You Li, Yao Chen, Qian Xie, Ningning Dong, Yanjun Gao, Huan Deng, Chunhua Lu, Suihai Wang
Background: MicroRNAs are considered as potential regulators in various biological pathways and contribute to the diagnosis and prognosis of cancers. MicroRNA-214-3p (miR-214-3p) was proved to be correlated with various cancers in recent studies. However, the biological functions of miR-214-3p in hepatocellular carcinoma (HCC) and its association with the prognosis of HCC after liver transplantation are still unevaluated. Here we intended to elucidate the functional implication of miR-214-3p in regulation of cell proliferation and apoptosis and its potential prediction of clinical prognosis of HCC patients...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/29151450/identification-and-expression-analysis-of-cdna-encoding-insulin-like-growth-factor-2-in-horses
#6
Kohta Kikuchi, Keisuke Sasaki, Hiroki Akizawa, Hayato Tsukahara, Hanako Bai, Masashi Takahashi, Yasuo Nambo, Hiroshi Hata, Manabu Kawahara
Insulin-like growth factor 2 (IGF2) is responsible for a broad range of physiological processes during fetal development and adulthood, but genomic analyses of IGF2 containing the 5'- and 3'-untranslated regions (UTRs) in equines have been limited. In this study, we characterized the IGF2 mRNA containing the UTRs, and determined its expression pattern in the fetal tissues of horses. The complete equine IGF2 mRNA sequence harboring another exon approximately 2.8 kb upstream from the canonical transcription start site was identified as a new transcript variant...
November 17, 2017: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/29149290/discovering-the-3-utr-mediated-regulation-of-alpha-synuclein
#7
Domenica Marchese, Teresa Botta-Orfila, Davide Cirillo, Juan Antonio Rodriguez, Carmen Maria Livi, Rubén Fernández-Santiago, Mario Ezquerra, Maria J Martí, Elias Bechara, Gian Gaetano Tartaglia
Recent evidence indicates a link between Parkinson's Disease (PD) and the expression of a-synuclein (SNCA) isoforms with different 3' untranslated regions (3'UTRs). Yet, the post-transcriptional mechanisms regulating SNCA expression are unknown. Using a large-scale in vitro/in silico screening we identified RNA-binding proteins (RBPs) that interact with SNCA 3' UTRs. We identified two RBPs, ELAVL1 and TIAR, that bind with high affinity to the most abundant and translationally active 3' UTR isoform (575 nt)...
November 15, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29147488/the-downregulation-of-atg4b-mediated-by-microrna-34a-34c-5p-suppresses-rapamycin-induced-autophagy
#8
Yaran Wu, Xufang Dai, Zhenhong Ni, Xiaojing Yan, Fengtian He, Jiqin Lian
Objectives: Autophagy-related 4B (ATG4B) plays an important role in the process of autophagy induction. However, the molecular events that govern the expression of ATG4B in this process are not well known. Materials and Methods: Human ATG4B 3'-UTR region (1377 nt) containing miR-34a/miR-34c-5p binding site was amplified by PCR. Luciferase assay was used to assess the activity of reporter genes. Real-time PCR was used to detect the levels of miR-34a and miR-34c-5p...
October 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29146443/differential-responses-of-a-thioredoxin-like-protein-gene-to-vibrio-parahaemolyticus-challenge-in-the-noble-scallop-chlamys-nobilis-with-different-total-carotenoids-content
#9
Hongkuan Zhang, Dewei Cheng, Hongxing Liu, Huaiping Zheng
Being lack of specific immune system, both enzymes and non-enzymatic antioxidants play crucial roles in immune of invertebrates. In the present study, in order to investigate immune roles of enzyme (thioredoxin, TRX) and antioxidants (carotenoids), Golden scallops with golden shell and golden muscle rich in carotenoids content and Brown scallops with brown shell and white muscle less carotenoids content of the noble scallop Chlamys nobilis were challenged by Vibrio parahaemolyticus for 48 h. Firstly, a cDNA of TRX protein gene from the scallop (named as CnTRX) was cloned and characterized...
November 13, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29145896/downregulation-of-mir-31-stimulates-expression-of-lats2-via-the-hippo-pathway-and-promotes-epithelial-mesenchymal-transition-in-esophageal-squamous-cell-carcinoma
#10
Yanping Gao, Jun Yi, Kai Zhang, Fan Bai, Bing Feng, Rui Wang, Xiaoyuan Chu, Longbang Chen, Haizhu Song
BACKGROUND: Dysregulation of miRNAs is associated with cancer development by coordinately suppressing abundant target genes. Emerging evidence indicates that miR-31 plays a dual role in tumorigenicity. However, whether miR-31 plays as an oncogene in esophageal squamous cell carcinoma (ESCC) and the potential target molecules are still unclear. MiR-31 role in ESCC was investigated and an association of the target molecules with EMT was identified in the progression of ESCC. METHODS: Western blot assays and qRT-PCR was performed to detect the protein and mRNA levels...
November 16, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29145602/genotype-based-selection-of-treatment-for-patients-with-advanced-colorectal-cancer-seticc-a-pharmacogenetic-based-randomized-phase-ii-trial
#11
A Abad, E Martínez-Balibrea, J M Viéitez, V A Orduña, P García Alfonso, J L Manzano, B Massutí, M Benavides, A Carrato, M Zanui, J Gallego, C Grávalos, V Conde, M Provencio, M Valladares, R Salazar, J Sastre, C Montagut, F Rivera, E Aranda
Background: There has been little progress toward personalized therapy for patients with metastatic colorectal cancer (mCRC). TYMS-3' untranslated region (UTR) 6 bp ins/del and ERCC1-118C/T polymorphisms were previously reported to facilitate selecting patients for fluoropyrimidine-based treatment in combination with oxaliplatin as first-line therapy. We assessed the utility of these markers in selecting therapy for patients with mCRC. Patients and methods: This randomized, open-label phase II trial compared bevacizumab plus XELOX (control) versus treatment tailored according to TYMS-3'UTR 6 bp ins/del and ERCC1-118C/T polymorphisms...
November 14, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29145165/long-non-coding-rna-dlx6-as1-aggravates-hepatocellular-carcinoma-carcinogenesis-by-modulating-mir-203a-mmp-2-pathway
#12
Lei Zhang, Xiaowei He, Ting Jin, Li Gang, Zhenlin Jin
Long non-coding RNAs (lncRNAs) have been wildly verified to modulate multiple tumorigenesis, especially hepatocellular carcinoma (HCC). In present study, our team aims to investigate the role of lncRNA DLX6-AS1 in the HCC carcinogenesis. Results of early-stage experiments found that DLX6-AS1 expression level was up-regulated in 60 cases of HCC tissue samples compared with adjacent normal tissue. Moreover, the aberrant overexpression of DLX6-AS1 indicated the poor prognosis of HCC patients. Loss-of-function experiments revealed that DLX6-AS1 knockdown inhibited the proliferation, migration and invasion of HCC cells in vitro, and decreased the tumor growth in vivo...
October 28, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29143945/one-evidence-of-cocaine-and-amphetamine-regulated-transcript-cart-has-the-bidirectional-effects-on-appetite-in-siberian-sturgeon-acipenser-baerii
#13
Xin Zhang, Yundi Gao, Ni Tang, Jinwen Qi, Yuanbing Wu, Jin Hao, Shuyao Wang, Defang Chen, Zhiqiong Li
Cocaine- and amphetamine-regulated transcript (CART), discovered in 1995, with various biological functions, has received much attention recently due to its role in the regulation of appetite in mammals. However, the function of CART on the appetite control in fish species is still not very clear. In this study, Siberian sturgeon (Acipenser baerii Brandt) cart gene was cloned for the first time, and the cart mRNA levels in 11 feeding-related tissues was investigated. The Siberian sturgeon cart gene sequence was 1459 base pairs (bp), including a 3'-terminal untranslated region (3'-UTR) of 39 bp, a 5'-terminal untranslated region (5'-UTR) of 52 bp, and an open reading frame (ORF) of 348 bp encoding 115 amino acids...
November 16, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/29143455/understanding-the-functional-role-of-microrna-214-3p-in-atherosclerosis-for-the-identification-of-novel-targeted-therapies-to-prevent-or-reverse-endothelial-cell-dysfunction-and-stimulate-autophagy
#14
EDITORIAL
Adriana Georgescu
The original article by Jing Wang and collaborators, entitled "MicroRNA-214-3p: A Link between Autophagy and Endothelial Cell Dysfunction in Atherosclerosis", brings new data concerning molecular mechanisms linking decreased autophagy to endothelial dysfunction in atherosclerosis. In this issue of Acta Physiologica, the authors concluded that microRNA-214-3p (miR-214-3p) controls oxidized low-density lipoprotein (ox-LDL)-induced autophagy in human umbilical vein endothelial cells (HUVECs) by regulating intracellular levels of autophagy-related protein 5 (ATG5), and may have a relevant role in the pathogenesis of atherosclerosis...
November 16, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/29141666/intron-retention-enhances-gene-regulatory-complexity-in-vertebrates
#15
Ulf Schmitz, Natalia Pinello, Fangzhi Jia, Sultan Alasmari, William Ritchie, Maria-Cristina Keightley, Shaniko Shini, Graham J Lieschke, Justin J-L Wong, John E J Rasko
BACKGROUND: While intron retention (IR) is now widely accepted as an important mechanism of mammalian gene expression control, it remains the least studied form of alternative splicing. To delineate conserved features of IR, we performed an exhaustive phylogenetic analysis in a highly purified and functionally defined cell type comprising neutrophilic granulocytes from five vertebrate species spanning 430 million years of evolution. RESULTS: Our RNA-sequencing-based analysis suggests that IR increases gene regulatory complexity, which is indicated by a strong anti-correlation between the number of genes affected by IR and the number of protein-coding genes in the genome of individual species...
November 16, 2017: Genome Biology
https://www.readbyqxmd.com/read/29141229/widespread-translational-remodeling-during-human-neuronal-differentiation
#16
John D Blair, Dirk Hockemeyer, Jennifer A Doudna, Helen S Bateup, Stephen N Floor
Faithful cellular differentiation requires temporally precise activation of gene expression programs, which are coordinated at the transcriptional and translational levels. Neurons express the most complex set of mRNAs of any human tissue, but translational changes during neuronal differentiation remain incompletely understood. Here, we induced forebrain neuronal differentiation of human embryonic stem cells (hESCs) and measured genome-wide RNA and translation levels with transcript-isoform resolution. We found that thousands of genes change translation status during differentiation without a corresponding change in RNA level...
November 14, 2017: Cell Reports
https://www.readbyqxmd.com/read/29138368/-regulatory-mechanisms-of-pd-l1-expression-and-its-role-in-immune-evasion
#17
Keisuke Kataoka
Immune checkpoint blockade therapy using anti-PD-1 or anti-PD-L1 antibodies can unleash anti-tumor immunity and induce durable remission in a variety ofhuman cancers. However, the regulatory mechanisms of PD-L1 expression mediating immune evasion ofcancer cells have not been fully elucidated, including the genetic alterations causing PD-L1 overexpression. Recently, we have reported a novel genetic mechanism ofimmune evasion associated with structural variations(SVs)disrupting the 3'-untranslated region(UTR)ofthe PD-L1 gene in various malignancies, such as aggressive lymphomas and gastrointestinal cancers...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29137386/mitochondrial-calcium-uniporter-as-a-target-of-microrna-340-and-promoter-of-metastasis-via-enhancing-the-warburg-effect
#18
Changhui Yu, Yuhao Wang, Jiawen Peng, Qiang Shen, Mimi Chen, Wei Tang, Xiumei Li, Chunqing Cai, Bin Wang, Shaoxi Cai, Xiaojing Meng, Fei Zou
Background: A shift from oxygen phosphorylation to aerobic glycolysis was known as the Warburg effect and a characteristic of cancer cell metabolism facilitating metastasis. Mitochondrial calcium uniporter (MCU), a key ion channel that mediates Ca(2+) uptake into mitochondria, was found to promote cancer progression and metastasis. However, its explicit role in shifting metabolism of breast cancer cells has not been defined. Methods: We evaluated MCU overexpression or knock-down on migration, invasion and glucose metabolismin breast cancer cells...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137361/downregulation-of-mir-199a-5p-promotes-prostate-adeno-carcinoma-progression-through-loss-of-its-inhibition-of-hif-1%C3%AE
#19
Jinjing Zhong, Rui Huang, Zhengzheng Su, Mengni Zhang, Miao Xu, Jing Gong, Ni Chen, Hao Zeng, Xueqin Chen, Qiao Zhou
Hypoxia-inducible factor-1 alpha (HIF-1α) plays key roles in cell survival under both hypoxia and normoxia conditions. Regulation of HIF-1α is complex and involves numerous molecules and pathways, including post-transcriptional regulation by microRNAs (miRNAs). Although upregulation of HIF-1α has been shown to promote prostate adenocarcinoma (PCa) progression, the mechanism by which miRNAs modulate HIF-1α in prostate cancer has not been clarified. Here, we show that miR-199a-5p is underexpressed in prostate adenocarcinoma...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137246/apigenin-sensitizes-bel-7402-adm-cells-to-doxorubicin-through-inhibiting-mir-101-nrf2-pathway
#20
Ai-Mei Gao, Xiao-Yu Zhang, Zun-Ping Ke
Chemo-resistance is one of the main obstacle in hepatocellular carcinoma therapy. Apigenin as a natural bioflavonoid has been exhibited anti-cancer properties in various malignant cancers. The aim of this study is to evaluate the potential chemo-sensitization effect of apigenin in doxorubicin-resistant hepatocellular carcinoma cell line BEL-7402/ADM and to investigate its possible mechanism. We found that apigenin significantly reversed doxorubicin sensitivity and induced caspase-dependent apoptosis in BEL-7402/ADM cells...
October 10, 2017: Oncotarget
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