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FoxP1

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https://www.readbyqxmd.com/read/27909217/the-small-foxp1-isoform-predominantly-expressed-in-activated-b-cell-like-diffuse-large-b-cell-lymphoma-and-full-length-foxp1-exert-similar-oncogenic-and-transcriptional-activity-in-human-b-cells
#1
Martine van Keimpema, Leonie J Grüneberg, Esther J M Schilder-Tol, Monique E C M Oud, Esther Beuling, Paul J Hensbergen, Johann de Jong, Steven T Pals, Marcel Spaargaren
The forkhead transcription factor FOXP1 is generally regarded as an oncogene in activated B cell-like diffuse large B-cell lymphoma. Previous studies have suggested that a small isoform of FOXP1 (FOXP1-iso), rather than full-length FOXP1 (FOXP1-FL), may possess this oncogenic activity. Corroborating those studies, we here show that activated B cell-like diffuse large B-cell lymphoma cell-lines and primary activated B cell-like diffuse large B-cell lymphoma cells predominantly express FOXP1-iso and that the 5-end of the Foxp1 gene is a common insertion site in murine lymphomas in leukaemia virus- and transposon-mediated insertional mutagenesis screens...
December 1, 2016: Haematologica
https://www.readbyqxmd.com/read/27895094/crosstalk-between-microrna-122-and-fox-family-genes-in-hepg2-cells
#2
Subodh Kumar, Ankita Batra, Shruthi Kanthaje, Sujata Ghosh, Anuradha Chakraborti
MicroRNA-122 (miR-122) is liver specific and plays an important role in physiology as well as diseases including hepatocellular carcinoma (HCC). Downregulation of miR-122 in HCC modulates apoptosis. Similarly, the putative targets of miR-122, the forkhead box (FOX) family genes also play an important role in the regulation of apoptosis. Hence, an interplay between miR-122 and FOX family genes has been explored in this study. Initially, an augmentation of apoptosis was noticed in HepG2 cells after transfection with miR-122...
November 28, 2016: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27871902/the-effects-of-long-term-estradiol-treatment-on-social-behavior-and-gene-expression-in-adult-female-rats
#3
Alexandra N Garcia, Kelsey Bezner, Christina Depena, Weiling Yin, Andrea C Gore
This study tested the effects of long-term estradiol (E2) replacement on social behavior and gene expression in brain nuclei involved in the regulation of these social behaviors in adult female rats. We developed an ultrasonic vocalization (USV) test and a sociability test to examine communications, social interactions, and social preference, using young adult female cagemates. All rats were ovariectomized (OVX) and implanted with a Silastic capsule containing E2 or vehicle, and housed in same-treatment pairs for a 3-month period...
November 18, 2016: Hormones and Behavior
https://www.readbyqxmd.com/read/27870152/practical-aspects-of-gene-regulatory-inference-via-conditional-inference-forests-from-expression-data
#4
Kyrylo Bessonov, Kristel Van Steen
Gene regulatory network (GRN) inference is an active area of research that facilitates understanding the complex interplays between biological molecules. We propose a novel framework to create such GRNs, based on Conditional Inference Forests (CIFs) as proposed by Strobl et al. Our framework consists of using ensembles of Conditional Inference Trees (CITs) and selecting an appropriate aggregation scheme for variant selection prior to network construction. We show on synthetic microarray data that taking the original implementation of CIFs with conditional permutation scheme (CIFcond ) may lead to improved performance compared to Breiman's implementation of Random Forests (RF)...
December 2016: Genetic Epidemiology
https://www.readbyqxmd.com/read/27861791/foxp1-is-a-key-regulator-of-quiescence-in-healthy-human-cd3-cd4-t-cells-and-is-constitutively-repressed-in-cd3-cd4-t-cells-from-patients-with-lymphoproliferative-disorders
#5
Soizic Garaud, Florence Roufosse, Pushpamali De Silva, Chunyan Gu-Trantien, Jean-Nicolas Lodewyckx, Hugues Duvillier, Sarah Dedeurwaerder, Martin Bizet, Matthieu Defrance, François Fuks, Françoise Bex, Karen Willard-Gallo
The forkhead box P1 (FOXP1) transcription factor has been shown to regulate the generation and maintenance of quiescent naïve murine T cells. In humans, FOXP1 expression has been correlated with overall survival in patients with peripheral T-cell lymphoma (PTCL), although its regulatory role in T-cell function is currently unknown. We found that FOXP1 is normally expressed in all human leukocyte subpopulations. Focusing on primary human CD4(+) T cells, we show that nuclear expression of FOXP1 predominates in naïve cells with significant downregulation detected in memory cells from blood and tonsils...
November 8, 2016: European Journal of Immunology
https://www.readbyqxmd.com/read/27859969/foxp1-enhances-tumor-cell-migration-by-repression-of-nfat1-transcriptional-activity-in-mda-mb-231-cells
#6
Sevil Oskay Halacli
Until now, forkhead box P1 (FOXP1) has been identified as a tumor suppressor in several correlation studies in breast cancer. Although FOXP1 is defined as a transcriptional repressor that interacts with other transcription factors in various mechanistic studies, there is no study that explains its repressor functions in breast cancer biology. This study demonstrated the repressor function of FOXP1 on nuclear factor of activated T cells (NFAT1) and the migratory effect of this repression in MDA-MB-231 breast cancer cells...
November 15, 2016: Cell Biology International
https://www.readbyqxmd.com/read/27851915/epigenomic-profiling-of-human-cd4-t-cells-supports-a-linear-differentiation-model-and-highlights-molecular-regulators-of-memory-development
#7
Pawel Durek, Karl Nordström, Gilles Gasparoni, Abdulrahman Salhab, Christopher Kressler, Melanie de Almeida, Kevin Bassler, Thomas Ulas, Florian Schmidt, Jieyi Xiong, Petar Glažar, Filippos Klironomos, Anupam Sinha, Sarah Kinkley, Xinyi Yang, Laura Arrigoni, Azim Dehghani Amirabad, Fatemeh Behjati Ardakani, Lars Feuerbach, Oliver Gorka, Peter Ebert, Fabian Müller, Na Li, Stefan Frischbutter, Stephan Schlickeiser, Carla Cendon, Sebastian Fröhler, Bärbel Felder, Nina Gasparoni, Charles D Imbusch, Barbara Hutter, Gideon Zipprich, Yvonne Tauchmann, Simon Reinke, Georgi Wassilew, Ute Hoffmann, Andreas S Richter, Lina Sieverling, Hyun-Dong Chang, Uta Syrbe, Ulrich Kalus, Jürgen Eils, Benedikt Brors, Thomas Manke, Jürgen Ruland, Thomas Lengauer, Nikolaus Rajewsky, Wei Chen, Jun Dong, Birgit Sawitzki, Ho-Ryun Chung, Philip Rosenstiel, Marcel H Schulz, Joachim L Schultze, Andreas Radbruch, Jörn Walter, Alf Hamann, Julia K Polansky
The impact of epigenetics on the differentiation of memory T (Tmem) cells is poorly defined. We generated deep epigenomes comprising genome-wide profiles of DNA methylation, histone modifications, DNA accessibility, and coding and non-coding RNA expression in naive, central-, effector-, and terminally differentiated CD45RA(+) CD4(+) Tmem cells from blood and CD69(+) Tmem cells from bone marrow (BM-Tmem). We observed a progressive and proliferation-associated global loss of DNA methylation in heterochromatic parts of the genome during Tmem cell differentiation...
November 15, 2016: Immunity
https://www.readbyqxmd.com/read/27806315/primary-mediastinal-large-b-cell-lymphoma-transcriptional-regulation-by-mir-92a-through-foxp1-targeting
#8
Martha Romero, Guillaume Gapihan, Luis Jaime Castro-Vega, Andrés Acevedo, Li Wang, Zhao Wei Li, Morad El Bouchtaoui, Mélanie Di Benedetto, Philippe Ratajczak, Jean-Paul Feugeas, Catherine Thieblemont, Carlos Saavedra, Anne Janin
BACKGROUND: Primary mediastinal large B-cell lymphoma (PMBL) shares pathological features with diffuse large B-cell lymphoma (DLBCL), and molecular features with classical Hodgkin lymphoma (cHL). The miR-17~92 oncogenic cluster, located at chromosome 13q31, is a region that is amplified in DLBCL. METHODS: Here we compared the expression of each member of the miR-17~92 oncogenic cluster in samples from 40 PMBL patients versus 20 DLBCL and 20 cHL patients, and studied the target genes linked to deregulated miRNA in PMBL...
October 28, 2016: Oncotarget
https://www.readbyqxmd.com/read/27775850/clinicopathological-characteristics-and-genomic-profile-of-primary-sinonasal-tract-diffuse-large-b-cell-lymphoma-dlbcl-reveals-gain-at-1q31-and-rgs1-encoding-protein-high-rgs1-immunohistochemical-expression-associates-with-poor-overall-survival-in-dlbcl-nos
#9
Joaquim Carreras, Yara Yukie Kikuti, Sílvia Beà, Masashi Miyaoka, Shinichiro Hiraiwa, Haruka Ikoma, Ryoko Nagao, David Martin-Garcia, Itziar Salaverria, Ai Sato, Ichiki Akifumi, Giovanna Roncador, Juan F Garcia, Kiyoshi Ando, Elias Campo, Naoya Nakamura
AIMS AND METHODS: We aimed to define the clinicopathological characteristics of 29 primary sinonasal diffuse large B-cell lymphoma (DLBCL(sn) ) in a series of 240 DLBCL(all ()(NOS)()) including DLBCL(sn) training set (n=11) and validation set (n=18), and DLBCL(non-sn) (n=211). RESULTS: In the training set 82% had non-GCB phenotype and 18% were EBER(+) . The genomic profile showed gains((+)) of 1q21.3q31.2 (55%), 10q24.1 (46%), 11q14.1 (46%) and 18q12.1q23 (46%); losses((-)) of 6q26q27 (55%) and 9p21...
October 24, 2016: Histopathology
https://www.readbyqxmd.com/read/27721656/role-of-mirna-9-in-brain-development
#10
Balachandar Radhakrishnan, A Alwin Prem Anand
MicroRNAs (miRNAs) are a class of small regulatory RNAs involved in gene regulation. The regulation is effected by either translational inhibition or transcriptional silencing. In vertebrates, the importance of miRNA in development was discovered from mice and zebrafish dicer knockouts. The miRNA-9 (miR-9) is one of the most highly expressed miRNAs in the early and adult vertebrate brain. It has diverse functions within the developing vertebrate brain. In this article, the role of miR-9 in the developing forebrain (telencephalon and diencephalon), midbrain, hindbrain, and spinal cord of vertebrate species is highlighted...
2016: Journal of Experimental Neuroscience
https://www.readbyqxmd.com/read/27709373/novel-snps-and-indels-discovered-in-two-promoter-regions-of-porcine-pregnancy-associated-glycoprotein-2-like-subfamily-ppag2-ls-in-crossbreed-pigs
#11
Martyna Bieniek-Kobuszewska, Grzegorz Panasiewicz, Aleksandra Lipka, Marta Majewska, Bozena Szafranska
This is a pioneer study of single nucleotide polymorphisms (SNPs) within the entire promoter region (1204 bp) of the dominant pPAG2-L subfamily in the pig. The pPAG2-L subfamily was sequenced/examined using genomic deoxyribonucleic acid (gDNA) templates of crossbreed pigs (Landrace x Large White), and compared to two bacterial artificial chromosome (BAC) clones containing gDNA of the Duroc breed (as the positive controls). Our analysis of the pPAG2-L promoter identified 31 SNPs and one InDel mutation in crossbreed pigs...
October 5, 2016: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/27678023/the-significance-of-foxp1-in-diffuse-large-b-cell-lymphoma
#12
Duncan M Gascoyne, Alison H Banham
Diffuse large B-cell lymphoma (DLBCL) is the most common subtype of mature B-cell lymphoma. While the majority of patients are cured with immunochemotherapy incorporating the anti-CD20 monoclonal antibody rituximab (R-CHOP), relapsed and refractory patients still have a dismal prognosis. DLBCL subtypes including an aggressive activated B-cell-like (ABC) and a more favorable prognosis germinal center-like (GCB) DLBCL have been identified by gene expression profiling and are characterized by distinct genetic abnormalities and oncogenic pathways...
September 27, 2016: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/27618020/downregulation-of-foxp1-inhibits-cell-proliferation-in-hepatocellular-carcinoma-by-inducing-g1-s-phase-cell-cycle-arrest
#13
Xin Wang, Ji Sun, Meiling Cui, Fangyu Zhao, Chao Ge, Taoyang Chen, Ming Yao, Jinjun Li
Forkhead box P1 (FOXP1) belongs to a family of winged-helix transcription factors that are involved in the processes of cellular proliferation, differentiation, metabolism, and longevity. FOXP1 can affect cell proliferation and migratory ability in hepatocellular carcinoma (HCC) in vitro. However, little is known about the mechanism of FOXP1 in the proliferation of HCC cells. This study aimed to further explore the function of FOXP1 on the proliferation of HCC cells as well as the relevant mechanism involved...
2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27604177/fast-set-based-association-analysis-using-summary-data-from-gwas-identifies-novel-gene-loci-for-human-complex-traits
#14
Andrew Bakshi, Zhihong Zhu, Anna A E Vinkhuyzen, W David Hill, Allan F McRae, Peter M Visscher, Jian Yang
We propose a method (fastBAT) that performs a fast set-based association analysis for human complex traits using summary-level data from genome-wide association studies (GWAS) and linkage disequilibrium (LD) data from a reference sample with individual-level genotypes. We demonstrate using simulations and analyses of real datasets that fastBAT is more accurate and orders of magnitude faster than the prevailing methods. Using fastBAT, we analyze summary data from the latest meta-analyses of GWAS on 150,064-339,224 individuals for height, body mass index (BMI), and schizophrenia...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27588474/direct-interaction-of-ikaros-and-foxp1-modulates-expression-of-the-g-protein-coupled-receptor-g2a-in-b-lymphocytes-and-acute-lymphoblastic-leukemia
#15
Jonathan Bond, Renae Domaschenz, Mónica Roman-Trufero, Pierangela Sabbattini, Isabel Ferreiros-Vidal, Gareth Gerrard, Vahid Asnafi, Elizabeth Macintyre, Matthias Merkenschlager, Niall Dillon
Ikaros and Foxp1 are transcription factors that play key roles in normal lymphopoiesis and lymphoid malignancies. We describe a novel physical and functional interaction between the proteins, which requires the central zinc finger domain of Ikaros. The Ikaros-Foxp1 interaction is abolished by deletion of this region, which corresponds to the IK6 isoform that is commonly associated with high-risk acute lymphoblastic leukemia (ALL). We also identify the Gpr132 gene, which encodes the orphan G protein-coupled receptor G2A, as a novel target for Foxp1...
August 30, 2016: Oncotarget
https://www.readbyqxmd.com/read/27573776/common-variants-confer-susceptibility-to-barrett-s-esophagus-insights-from-the-first-genome-wide-association-studies
#16
Claire Palles, John M Findlay, Ian Tomlinson
Eight loci have been identified by the two genome-wide association studies of Barrett's esophagus that have been conducted to date. Esophageal adenocarcinoma cases were included in the second study following evidence that predisposing genetic variants for this cancer overlap with those for Barrett's esophagus. Genes with roles in embryonic development of the foregut are adjacent to 6 of the loci identified (FOXF1, BARX1, FOXP1, GDF7, TBX5, and ALDH1A2). An additional locus maps to a gene with known oncogenic potential (CREB-regulated transcription coactivator 1), but expression quantitative trait data implicates yet another gene involved in esophageal development (PBX4)...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27539385/gene-expression-analysis-of-developing-cell-groups-in-the-pretectal-region-of-xenopus-laevis
#17
Ruth Morona, José Luis Eduardo Ferran, Luis Puelles, Agustín González
Our previous analysis of progenitor domains in the pretectum of Xenopus revealed three molecularly distinct anteroposterior subdivisions identified as precommissural (PcP), juxtacommissural (JcP), and commissural (CoP) histogenetic domains (Morona et al. [2011] J Comp Neurol 519:1024-1050). Here we analyzed at later developmental stages the nuclei derived from these areas, attending to their gene expression patterns and histogenesis. Transcription-factor gene markers were used to selectively map derivatives of each domain: Pax7 and Pax6 (CoP); Foxp1 and Six3 (JcP); and Xiro1, VGlut2, Ebf1, and Ebf3 (PcP)...
August 19, 2016: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/27484700/mapping-epigenetic-changes-to-the-host-cell-genome-induced-by-burkholderia-pseudomallei-reveals-pathogen-specific-and-pathogen-generic-signatures-of-infection
#18
Deniz Cizmeci, Emma L Dempster, Olivia L Champion, Sariqa Wagley, Ozgur E Akman, Joann L Prior, Orkun S Soyer, Jonathan Mill, Richard W Titball
The potential for epigenetic changes in host cells following microbial infection has been widely suggested, but few examples have been reported. We assessed genome-wide patterns of DNA methylation in human macrophage-like U937 cells following infection with Burkholderia pseudomallei, an intracellular bacterial pathogen and the causative agent of human melioidosis. Our analyses revealed significant changes in host cell DNA methylation, at multiple CpG sites in the host cell genome, following infection. Infection induced differentially methylated probes (iDMPs) showing the greatest changes in DNA methylation were found to be in the vicinity of genes involved in inflammatory responses, intracellular signalling, apoptosis and pathogen-induced signalling...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27457567/prognostic-value-of-decreased-foxp1-protein-expression-in-various-tumors-a-systematic-review-and-meta-analysis
#19
Jian Xiao, Bixiu He, Yong Zou, Xi Chen, Xiaoxiao Lu, Mingxuan Xie, Wei Li, Shuya He, Shaojin You, Qiong Chen
The prognostic value of forkhead box protein P1 (FOXP1) protein expression in tumors remains controversial. Therefore, we conducted a systematic review and meta-analysis, searching the PubMed, Embase and Web of Science databases to identify eligible studies. In total, we analyzed 22 articles that examined 9 tumor types and included 2468 patients. Overall, decreased expression of FOXP1 protein was associated with favorable overall survival (OS) in lymphoma patients (HR = 0.38, 95%CI: 0.30-0.48, p < 0...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27441287/foxp1-forkhead-transcription-factor-is-associated-with-the-pathogenesis-of-endometrial-cancer
#20
Makito Mizunuma, Yoshihito Yokoyama, Masayuki Futagami, Kayo Horie, Jun Watanabe, Hideki Mizunuma
Endometrial cancers are mostly estrogen-dependent. FOXP1 is a P subfamily of forkhead box (FOX), and known as an estrogen-responsive transcription factor. The aims of this study were to examine histological location of FOXP1 in normal and malignant endometrium, and to investigate a possible association between FOXP1 and other factors considered to be involved in pathogenesis of endometrial cancer. The levels of FOXP1, estrogen receptor (ER)α, and ERβ expression were examined immunohistochemically in normal and malignant endometrium obtained from 75 women (8 normal, 8 atypical endometrial hyperplasia, and 59 endometrial cancers from grade 1 to 3)...
May 2016: Heliyon
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