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https://www.readbyqxmd.com/read/29329291/ovule-identity-mediated-by-pre-mrna-processing-in-arabidopsis
#1
Encarnación Rodríguez-Cazorla, Samanta Ortuño-Miquel, Héctor Candela, Lindsay J Bailey-Steinitz, Martin F Yanofsky, Antonio Martínez-Laborda, Juan-José Ripoll, Antonio Vera
Ovules are fundamental for plant reproduction and crop yield as they are the precursors of seeds. Therefore, ovule specification is a critical developmental program. In Arabidopsis thaliana, ovule identity is redundantly conferred by the homeotic D-class genes SHATTERPROOF1 (SHP1), SHP2 and SEEDSTICK (STK), phylogenetically related to the MADS-domain regulatory gene AGAMOUS (AG), essential in floral organ specification. Previous studies have shown that the HUA-PEP activity, comprised of a suite of RNA-binding protein (RBP) encoding genes, regulates AG pre-mRNA processing and thus flower patterning and organ identity...
January 12, 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29322631/cold-inducible-rna-binding-protein-in-cancer-and-inflammation
#2
REVIEW
Daniel A Lujan, Joey L Ochoa, Rebecca S Hartley
RNA binding proteins (RBPs) play key roles in RNA dynamics, including subcellular localization, translational efficiency and metabolism. Cold-inducible RNA binding protein (CIRP) is a stress-induced protein that was initially described as a DNA damage-induced transcript (A18 hnRNP), as well as a cold-shock domain containing cold-stress response protein (CIRBP) that alters the translational efficiency of its target messenger RNAs (mRNAs). This review summarizes recent work on the roles of CIRP in the context of inflammation and cancer...
January 11, 2018: Wiley Interdisciplinary Reviews. RNA
https://www.readbyqxmd.com/read/29302577/rna-binding-protein-as-an-emerging-therapeutic-target-for-cancer-prevention-and-treatment
#3
REVIEW
Suntaek Hong
After transcription, RNAs are always associated with RNA binding proteins (RBPs) to perform biological activities. RBPs can interact with target RNAs in sequence- and structure-dependent manner through their unique RNA binding domains. In development and progression of carcinogenesis, RBPs are aberrantly dysregulated in many human cancers with various mechanisms, such as genetic alteration, epigenetic change, noncoding RNA-mediated regulation, and post-translational modifications. Upon deregulation in cancers, RBPs influence every step in the development and progression of cancer, including sustained cell proliferation, evasion of apoptosis, avoiding immune surveillance, inducing angiogenesis, and activating metastasis...
December 2017: Journal of Cancer Prevention
https://www.readbyqxmd.com/read/29275974/implementation-of-prospective-surgeon-driven-risk-based-pathway-for-pancreatoduodenectomy-results-in-improved-clinical-outcomes-and-first-year-cost-savings-of-1-million
#4
Christopher R Shubert, Michael L Kendrick, Elizabeth B Habermann, Amy E Glasgow, Bijan J Borah, James P Moriarty, Sean P Cleary, Rory L Smoot, Michael B Farnell, David M Nagorney, Mark J Truty, Florencia G Que
BACKGROUND: Morbidity and costs after pancreatoduodenectomy remain increased, driven by postoperative pancreatic fistula (POPF). A risk-based pathway for pancreatoduodenectomy (RBP-PD) was implemented and the clinical and cost outcomes compared with that of our historic practice. METHODS: Prospective clinical and cost outcomes for our RBP-PD cohort treated from September 2014 to September 2015 were compared with a previously published cohort of pancreatoduodenectomies from January 2007 to February 2014...
December 21, 2017: Surgery
https://www.readbyqxmd.com/read/29273772/reducing-the-rna-binding-protein-tia1-protects-against-tau-mediated-neurodegeneration-in-vivo
#5
Daniel J Apicco, Peter E A Ash, Brandon Maziuk, Chelsey LeBlang, Maria Medalla, Ali Al Abdullatif, Antonio Ferragud, Emily Botelho, Heather I Ballance, Uma Dhawan, Samantha Boudeau, Anna Lourdes Cruz, Daniel Kashy, Aria Wong, Lisa R Goldberg, Neema Yazdani, Cheng Zhang, Choong Y Ung, Yorghos Tripodis, Nicholas M Kanaan, Tsuneya Ikezu, Pietro Cottone, John Leszyk, Hu Li, Jennifer Luebke, Camron D Bryant, Benjamin Wolozin
Emerging studies suggest a role for tau in regulating the biology of RNA binding proteins (RBPs). We now show that reducing the RBP T-cell intracellular antigen 1 (TIA1) in vivo protects against neurodegeneration and prolongs survival in transgenic P301S Tau mice. Biochemical fractionation shows co-enrichment and co-localization of tau oligomers and RBPs in transgenic P301S Tau mice. Reducing TIA1 decreased the number and size of granules co-localizing with stress granule markers. Decreasing TIA1 also inhibited the accumulation of tau oligomers at the expense of increasing neurofibrillary tangles...
January 2018: Nature Neuroscience
https://www.readbyqxmd.com/read/29273203/transcriptome-wide-identification-and-validation-of-interactions-between-the-mirna-machinery-and-hur-on-mrna-targets
#6
Yahui Li, Jason A Estep, Fedor V Karginov
The 3' UTR of mRNAs is the primary regulatory region that mediates post-transcriptional control by microRNAs and RNA-binding proteins (RBPs) in the cytoplasm. Aside from individual sequence-specific binding and regulation, examples of interaction between these factors at particular 3' UTR sites have emerged. However, the whole picture of such higher-order regulatory modules across the transcriptome is lacking. Here, we investigate the interactions between HuR, a ubiquitous RBP, and Ago2, a core effector of the miRNA pathway, at the transcriptome-wide level...
December 20, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/29248374/multi-omics-reveal-specific-targets-of-the-rna-binding-protein-puf3p-and-its-orchestration-of-mitochondrial-biogenesis
#7
Christopher P Lapointe, Jonathan A Stefely, Adam Jochem, Paul D Hutchins, Gary M Wilson, Nicholas W Kwiecien, Joshua J Coon, Marvin Wickens, David J Pagliarini
Coenzyme Q (CoQ) is a redox-active lipid required for mitochondrial oxidative phosphorylation (OxPhos). How CoQ biosynthesis is coordinated with the biogenesis of OxPhos protein complexes is unclear. Here, we show that the Saccharomyces cerevisiae RNA-binding protein (RBP) Puf3p regulates CoQ biosynthesis. To establish the mechanism for this regulation, we employed a multi-omic strategy to identify mRNAs that not only bind Puf3p but also are regulated by Puf3p in vivo. The CoQ biosynthesis enzyme Coq5p is a critical Puf3p target: Puf3p regulates the abundance of Coq5p and prevents its detrimental hyperaccumulation, thereby enabling efficient CoQ production...
December 12, 2017: Cell Systems
https://www.readbyqxmd.com/read/29244194/arid5a-stabilizes-ox40-mrna-in-murine-cd4-t-cells-by-recognizing-a-stem-loop-structure-in-its-3-utr
#8
Hamza Hanieh, Kazuya Masuda, Hozaifa Metwally, Jaya P Chalise, Maged Mohamed, Kishan K Nyati, Daron M Standley, Songling Li, Mitsuru Higa, Mohammad M Zaman, Tadamitsu Kishimoto
AT-rich interactive domain-containing protein 5a (Arid5a) is an RNA-binding protein (RBP) required for autoimmunity via stabilization of interleukin-6 (Il6) and signal transducer and activator of transcription 3 (STAT3) mRNAs. However, the roles of Arid5a in Th17 cells and its association with autoimmunity remains unknown. Here, we show that the levels of Arid5a and OX40 are correlated in CD4+ T cells under Th17 conditions in an IL-6-dependent manner. Lack of Arid5a in T cells reduced OX40 expression levels and repressed IL-17 production in response to OX40 ligation...
December 15, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/29242583/hybrid-splicing-minigene-and-antisense-oligonucleotides-as-efficient-tools-to-determine-functional-protein-rna-interactions
#9
Piotr Cywoniuk, Katarzyna Taylor, Łukasz J Sznajder, Krzysztof Sobczak
Alternative splicing is a complex process that provides a high diversity of proteins from a limited number of protein-coding genes. It is governed by multiple regulatory factors, including RNA-binding proteins (RBPs), that bind to specific RNA sequences embedded in a specific structure. The ability to predict RNA-binding regions recognized by RBPs using whole-transcriptome approaches can deliver a multitude of data, including false-positive hits. Therefore, validation of the global results is indispensable...
December 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29226076/increasing-the-length-and-hydrophobicity-of-the-c-terminal-sequence-of-transthyretin-strengthens-its-binding-affinity-to-retinol-binding-protein
#10
Rattawan Poodproh, Supavadee Kaewmeechai, Ladda Leelawatwattana, Porntip Prapunpoj
Transthyretin (TTR) is a transporter for thyroid hormone (TH) and retinol, the latter via binding with retinol binding protein (RBP). Both the N-terminal and C-terminal regions of the TTR subunit are located in close proximity to the central binding channel for ligands. During the evolution of vertebrates, these regions changed in length and hydropathy. The changes in the N-terminal sequence were demonstrated to affect the binding affinities for THs and RBP. Here, the effects of changes in the C-terminal sequence were determined...
December 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/29213259/characterization-of-a-suppressive-cis-acting-element-in-the-epstein-barr-virus-lmp1-promoter
#11
Masahiro Yoshida, Takayuki Murata, Keiji Ashio, Yohei Narita, Takahiro Watanabe, H M Abdullah Al Masud, Yoshitaka Sato, Fumi Goshima, Hiroshi Kimura
Latent membrane protein 1 (LMP1) is a major oncogene encoded by Epstein-Barr virus (EBV) and is essential for immortalization of B cells by the virus. Previous studies suggested that several transcription factors, such as PU.1, RBP-Jκ, NFκB, EBF1, AP-2 and STAT, are involved in LMP1 induction; however, the means by which the oncogene is negatively regulated remains unclear. Here, we introduced short mutations into the proximal LMP1 promoter that includes recognition sites for the E-box and Ikaros transcription factors in the context of EBV-bacterial artificial chromosome...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29201241/clinical-value-of-urinary-retinol-binding-protein-in-ascites-due-to-cirrhosis
#12
Yujing Xia, Jingjing Li, Sainan Li, Tong Liu, Yuqing Zhou, Qin Yin, Jianrong Wang, Wenxia Lu, Rong Zhang, Yuanyuan Zheng, Fan Wang, Jie Lu, Kan Chen, Weiqi Dai, Yingqun Zhou, Chuanyong Guo
The aim of the present study was to explore the clinical value of urinary retinol-binding protein (RBP) level in the prognosis of cirrhotic ascites by assessment of the RBP levels prior to and following ascites treatment. The levels of urinary RBP, urinary microalbumin (mAlb), serum urea nitrogen (urea) and serum creatinine (Cr), and the estimated glomerular filtration rate (eGFR) were measured in 90 patients with cirrhosis and ascites hospitalized in a single institution between May 2011 and January 2012, and in 30 healthy controls...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29201206/combined-treatment-of-diabetic-nephropathy-with-alprostadil-and-calcium-dobesilate
#13
Lili Qin, Wenjun Qin, Jianfei Wang, Lin Lin
This study investigated the effects of alprostadil combined with calcium dobesilate on the treatment of diabetic nephropathy. We recruited 80 patients with diabetic nephropathy, who were randomly divided into experimental (n=40) and control (n=40) groups. Patients received high-quality low-protein diabetic diet intervention and subcutaneous injection of insulin to adjust blood glucose, combined with antihypertensive, antiplatelet drugs, and other comprehensive treatments. The control group received alprostadil and the experimental group received alprostadil combined with calcium dobesilate...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29194759/association-between-urine-retinol-binding-protein-levels-and-nonalcoholic-fatty-liver-disease-a-cross-sectional-study-in-chinese-population
#14
Juanwen Zhang, Zeyu Liu, Xuyao Zhang, Li Zhang, Xi Jin
OBJECTIVE: The prevalence of nonalcoholic fatty liver disease (NAFLD) has been rapidly increased, becoming a public health problem worldwide. Our objective was to investigate the association between urine retinol-binding protein (RBP) and NAFLD in a Chinese population and develop a multivariate logistic regression model for NAFLD prediction. METHODS: A total of 317 NAFLD patients and 391 healthy controls were enrolled in this cross-sectional study based on inclusion and exclusion criteria, from whom fasting urine and blood were collected for further study...
November 30, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/29184865/etiological-evaluation-of-repeated-biochemical-pregnancy-in-infertile-couples-who-have-undergone-in-vitro-fertilization
#15
Hyun-Mi Lee, Hwa Jeong Lee, Kwang Moon Yang, Sun Hwa Cha, Hyun Kyong Ahn, Young Joo Kim
Objective: This study aims to investigate whether there are any notable etiologies for repeated biochemical pregnancy (RBP) and, if so, to compare those etiologies associated with repeated spontaneous abortion in infertile couples who have undergone in vitro fertilization (IVF). Methods: Forty-four infertile couples who underwent IVF and experienced RBP were included in this study. RBP was defined as more than 2 early pregnancy losses that occurred before the detection of a gestational sac, with ectopic pregnancies specifically excluded by serial serum beta human chorionic gonadotropin evaluation...
November 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/29183708/posttranscriptional-regulation-of-lipid-metabolism-by-non-coding-rnas-and-rna-binding-proteins
#16
REVIEW
Abhishek K Singh, Binod Aryal, Xinbo Zhang, Yuhua Fan, Nathan Price, Yajaira Suárez, Carlos Fernández-Hernando
Alterations in lipoprotein metabolism enhance the risk of cardiometabolic disorders including type-2 diabetes and atherosclerosis, the leading cause of death in Western societies. While the transcriptional regulation of lipid metabolism has been well characterized, recent studies have uncovered the importance of microRNAs (miRNAs), long-non-coding RNAs (lncRNAs) and RNA binding proteins (RBP) in regulating the expression of lipid-related genes at the posttranscriptional level. Work from several groups has identified a number of miRNAs, including miR-33, miR-122 and miR-148a, that play a prominent role in controlling cholesterol homeostasis and lipoprotein metabolism...
November 25, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/29149906/forebrain-specific-conditional-silencing-of-staufen2-alters-synaptic-plasticity-learning-and-memory-in-rats
#17
Stefan M Berger, Iván Fernández-Lamo, Kai Schönig, Sandra M Fernández Moya, Janina Ehses, Rico Schieweck, Stefano Clementi, Thomas Enkel, Sascha Grothe, Oliver von Bohlen Und Halbach, Inmaculada Segura, José María Delgado-García, Agnès Gruart, Michael A Kiebler, Dusan Bartsch
BACKGROUND: Dendritic messenger RNA (mRNA) localization and subsequent local translation in dendrites critically contributes to synaptic plasticity and learning and memory. Little is known, however, about the contribution of RNA-binding proteins (RBPs) to these processes in vivo. RESULTS: To delineate the role of the double-stranded RBP Staufen2 (Stau2), we generate a transgenic rat model, in which Stau2 expression is conditionally silenced by Cre-inducible expression of a microRNA (miRNA) targeting Stau2 mRNA in adult forebrain neurons...
November 17, 2017: Genome Biology
https://www.readbyqxmd.com/read/29142127/epstein-barr-virus-protein-eb2-stimulates-translation-initiation-of-mrnas-through-direct-interactions-with-both-pabp-and-eif4g
#18
Fabrice Mure, Baptiste Panthu, Isabelle Zanella-Cléon, Frédéric Delolme, Evelyne Manet, Théophile Ohlmann, Henri Gruffat
Epstein-Barr virus (EBV) expresses several mRNAs produced from intronless genes that could potentially be unfavorably translated compared to cellular spliced mRNAs. To overcome this situation, the virus encodes an RNA-binding protein (RBP) called EB2, previously found to both facilitate the export of nuclear mRNAs and increase their translational yield. Here, we show that EB2 binds both nuclear and cytoplasmic cap-binding complexes (respectively, CBC and eIF4F) as well as the poly(A)-binding protein (PABP) to enhance translation initiation of a given mRNP...
November 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29140459/rbm45-competes-with-hdac1-for-binding-to-fus-in-response-to-dna-damage
#19
Juanjuan Gong, Min Huang, Fengli Wang, Xiaolu Ma, Hongmei Liu, Yingfeng Tu, Lingyu Xing, Xuefei Zhu, Hui Zheng, Junjie Fang, Xiaoling Li, Qiaochu Wang, Jiuqiang Wang, Zhongshuai Sun, Xi Wang, Yun Wang, Caixia Guo, Tie-Shan Tang
DNA damage response (DDR) is essential for genome stability and human health. Recently, several RNA binding proteins (RBPs), including fused-in-sarcoma (FUS), have been found unexpectedly to modulate this process. The role of FUS in DDR is closely linked to the pathogenesis of amyotrophic lateral sclerosis (ALS), a progressive neurodegenerative disease that affects nerve cells in the brain and the spinal cord. Given that RBM45 is also an ALS-associated RBP, we wondered whether RBM45 plays any function during this process...
November 13, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29134320/artificial-intelligence-in-neurodegenerative-disease-research-use-of-ibm-watson-to-identify-additional-rna-binding-proteins-altered-in-amyotrophic-lateral-sclerosis
#20
Nadine Bakkar, Tina Kovalik, Ileana Lorenzini, Scott Spangler, Alix Lacoste, Kyle Sponaugle, Philip Ferrante, Elenee Argentinis, Rita Sattler, Robert Bowser
Amyotrophic lateral sclerosis (ALS) is a devastating neurodegenerative disease with no effective treatments. Numerous RNA-binding proteins (RBPs) have been shown to be altered in ALS, with mutations in 11 RBPs causing familial forms of the disease, and 6 more RBPs showing abnormal expression/distribution in ALS albeit without any known mutations. RBP dysregulation is widely accepted as a contributing factor in ALS pathobiology. There are at least 1542 RBPs in the human genome; therefore, other unidentified RBPs may also be linked to the pathogenesis of ALS...
November 13, 2017: Acta Neuropathologica
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