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https://www.readbyqxmd.com/read/28542597/mir-193b-downregulated-in-ewing-sarcoma-targets-the-erbb4-oncogene-to-inhibit-anchorage-independent-growth
#1
Colin Moore, Janet K Parrish, Paul Jedlicka
Ewing Sarcoma is an aggressive, oncofusion-driven, malignant neoplasm of bone and soft tissue affecting predominantly children and young adults. Seeking to identify potential novel therapeutic targets/agents for this disease, our previous studies uncovered microRNAs regulated by EWS/Fli1, the most common oncofusion, with growth modulatory properties. In the present study, we sought to identify EWS/Fli1-repressed, growth suppressive, microRNAs potentially amenable to replacement in Ewing Sarcoma cells. Eight microRNAs (143, 153, 184, 193b, 195, 203, 206 and 223) were selected for evaluation as EWS/Fli1-repressed and underexpressed in Ewing Sarcoma cells, and reported to be growth suppressive in other pediatric or/and adult cancers...
2017: PloS One
https://www.readbyqxmd.com/read/28536037/identification-of-molecular-targets-in-vulvar-cancers
#2
Marguerite L Palisoul, Mary M Mullen, Rebecca Feldman, Premal H Thaker
OBJECTIVES: To identify molecular alterations that contribute to vulvar cancer pathogenesis with the intent of identifying molecular targets for treatment. METHODS: After retrospective analysis of a database of molecularly-profiled gynecologic cancer patients, 149 vulvar cancer patients were included and tested centrally at a CLIA laboratory (Caris Life Sciences, Phoenix, AZ). Tests included one or more of the following: gene sequencing (Sanger or next generation sequencing [NGS]), protein expression (immunohistochemistry [IHC]), and gene amplification (C/FISH)...
May 20, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28514724/sirna-mediated-inactivation-of-her3-improves-the-antitumour-activity-and-sensitivity-of-gefitinib-in-gastric-cancer-cells
#3
Heng-Heng Yuan, Ying-Nan Yang, Jian-Hua Zhou, Yan-Jing Li, Li-Ying Wang, Jun-Wei Qin, Tao Liu, Zhen-Zhen Li, Qing-Xin Zhou, Xiao-Li Wei, Ting-Ting Zhang, Peng Huang, Wen-Jie Zhang, Lei Liu, Xiao-Xue Du, Yu Han
The human EGFR family consists of four type-1 transmembrane tyrosine kinase receptors: HER1 (EGFR, ErbB1), HER2 (Neu, ErbB2), HER3 (ErbB3), and HER4 (ErbB4). HER3 can dimerize with EGFR, HER2 and even c-Met and likely plays a central role in the response to EGFR-targeted therapy. Because HER3 lacks significant kinase activity and cannot be inhibited by tyrosine kinase inhibitors, neutralizing antibodies and alternative inhibitors of HER3 have been sought as cancer therapeutics. Here, we describe the stable suppression of HER3 mRNA and protein using siRNA...
April 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28508829/the-association-between-rs1972820-and-the-risk-of-breast-cancer-in-isfahan-population
#4
Narges Zabihi, Samira Sadeghi, Hossein Tabatabaeian, Kamran Ghaedi, Mansoureh Azadeh, Mohammad Fazilati
CONTEXT: A number of single nucleotide polymorphisms (SNPs) in ERBB4 gene have been linked to increase the risk of breast cancer. However, no study has been dedicated to analyze the significance of microRNA-related SNP rs1972820, located in ERBB4 3'-untranslated region (UTR), in breast tumors. AIMS: Here, we investigated the frequency and association between rs1972820 and breast cancer. SUBJECTS AND METHODS: The rs1972820 genotypes in 182 samples were collected from 96 healthy people, and 86 breast cancer patients were determined using tetra-primer amplification refractory mutation system-polymerase chain reaction...
January 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28501849/mir-551b-regulates-epithelial-mesenchymal-transition-and-metastasis-of-gastric-cancer-by-inhibiting-erbb4-expression
#5
Guangyuan Song, Hongcheng Zhang, Chenlin Chen, Lijie Gong, Biao Chen, Shaoyun Zhao, Ji Shi, Ji Xu, Zaiyuan Ye
Epithelial-mesenchymal transition (EMT) is an important biological process that is characteristic of malignant tumor cells with metastatic potential. We investigated the role of miR-551b in EMT and metastasis in gastric cancer (GC). We found that low miR-551b levels were associated with EMT, metastasis and a poor prognosis in GC patients. Further, two GC cell lines, MNK45 and SGC7901, exhibited lower miR-551b levels than the GES normal stomach cell line. Exposing MNK45 and SGC7901 cells to TGF-β1 resulted in cell morphology changes characteristic of EMT, which was confirmed by western blot analysis demonstrating low E-Cadherin and high N-Cadherin and Vimentin levels...
April 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28496106/neuregulin-1-improves-complex-2-mediated-mitochondrial-respiration-in-skeletal-muscle-of-healthy-and-diabetic-mice
#6
Gaël Ennequin, Frederic Capel, Kevin Caillaud, Vivien Chavanelle, Monique Etienne, Allison Teixeira, Xinyan Li, Nathalie Boisseau, Pascal Sirvent
It has been reported that neuregulin1 (NRG1) improves glucose tolerance in healthy and diabetic rodents. In vitro studies also suggest that NRG1 regulates myocyte oxidative capacity. To confirm this observation in vivo, we evaluated the effect on mitochondrial function of an 8-week treatment with NRG1 in db/db diabetic mice and C57BL/6JRJ healthy controls. NRG1 treatment improved complex 2-mediated mitochondrial respiration in the gastrocnemius of both control and diabetic mice and increased mitochondrial complex 2 subunit content by 2-fold...
May 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28467773/mir-302b-inhibits-cancer-related-inflammation-by-targeting-erbb4-irf2-and-cxcr4-in-esophageal-cancer
#7
Mingxin Zhang, Lingmin Zhang, Manli Cui, Wenguang Ye, Pengjiang Zhang, Suna Zhou, Jingjie Wang
Cancer related inflammation (CRI) plays an important role in the development of esophageal cancer (EC), and the target gene analysis shows that miR-302b potential target genes closely correlated to CRI important signaling pathways. The present study was to evaluate the inhibition of miR-302b on CRI in EC and its mechanism. We found that the expression levels of miR-302b in EC cells were lower than that in Het-1A cells, while TE11 with the lowest expression and OE33 with the highest. Inflammatory stimuli at 48 h significantly reduced expression of miR-302b in EC cells, but had no effect in Het-1A...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28435121/proteome-analysis-of-human-embryonic-stem-cells-organelles
#8
Faezeh Shekari, Hossein Nezari, Mehran Rezaei Larijani, Chia-Li Han, Hossein Baharvand, Yu-Ju Chen, Ghasem Hosseini Salekdeh
As the functions of proteins are associated with their cellular localization, the comprehensive sub-cellular proteome knowledge of human embryonic stem cells (hESCs) is indispensable for ensuring a therapeutic effect. Here, we have utilized a sub-cellular proteomics approach to analyze the localization of proteins in the nucleus, mitochondria, crude membrane, cytoplasm, heavy and light microsomes. Out of 2002 reproducibly identified proteins, we detected 762 proteins in a single organelle whereas 160 proteins were found in all sub-cellular fractions...
April 20, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28432142/structural-similarities-between-neuregulin-1-3-isoforms-determine-their-subcellular-distribution-and-signaling-mode-in-central-neurons
#9
Detlef Vullhorst, Tanveer Ahmad, Irina Karavanova, Carolyn Keating, Andres Buonanno
The Neuregulin (NRG) family of ErbB ligands is comprised of numerous variants originating from the use of different genes, alternative promoters and splice variants. NRGs have generally been thought to be transported to axons and presynaptic terminals where they signal via ErbB3/4 receptors in paracrine or juxtacrine mode. However, we recently demonstrated that unprocessed pro-NRG2 accumulates on cell bodies and proximal dendrites, and that NMDAR activity is required for shedding of its ectodomain by metalloproteinases...
April 21, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28425244/genetic-association-analysis-of-erbb4-polymorphisms-with-the-risk-ofschizophrenia-susceptibility-in-a-jordanian-population-of-arab-descent
#10
Laith Al-Eitan, Sahar Al-Habahbeh, Rami Alkhatib
BACKGROUND/AIM: The ERBB4 gene encodes a transmembrane tyrosine kinase and is considered to be one of the risk genes of schizophrenia. Although there is evidence of the roles of genes and the environment in the etiology of schizophrenia, a comprehensive biological and genetic background of the disease is still lacking. The aim of this study is to assess whether genetic variation in the human ERBB4 gene is associated with vulnerability to schizophrenia in the Jordanian Arab population...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28421673/endothelial-erbb4-deficit-induces-alterations-in-exploratory-behavior-and-brain-energy-metabolism-in-mice
#11
Gang Wu, Xiu-Xiu Liu, Nan-Nan Lu, Qi-Bing Liu, Yun Tian, Wei-Feng Ye, Guo-Jun Jiang, Rong-Rong Tao, Feng Han, Ying-Mei Lu
AIMS: The receptor tyrosine kinase ErbB4 is present throughout the primate brain and has a distinct functional profile. In this study, we investigate the potential role of endothelial ErbB4 receptor signaling in the brain. RESULTS: Here, we show that the endothelial cell-specific deletion of ErbB4 induces decreased exploratory behavior in adult mice. However, the water maze task for spatial memory and the memory reconsolidation test reveal no changes; additionally, we observe no impairment in CaMKII phosphorylation in Cdh5Cre;ErbB4(f/f) mice, which indicates that the endothelial ErbB4 deficit leads to decreased exploratory activity rather than direct memory deficits...
June 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/28402449/enhancement-of-trophoblast-differentiation-and-survival-by-low-molecular-weight-heparin-requires-heparin-binding-egf-like-growth-factor
#12
Alan D Bolnick, Jay M Bolnick, Hamid-Reza Kohan-Ghadr, Brian A Kilburn, Omar J Pasalodos, Pankaj K Singhal, Jing Dai, Michael P Diamond, D Randall Armant, Sascha Drewlo
STUDY QUESTION: Does low molecular weight heparin (LMWH) require heparin-binding epidermal growth factor (EGF)-like growth factor (HBEGF) signaling to induce extravillous trophoblast differentiation and decrease apoptosis during oxidative stress? SUMMARY ANSWER: LMWH increased HBEGF expression and secretion, and HBEGF signaling was required to stimulate trophoblast extravillous differentiation, increase invasion in vitro and reduce trophoblast apoptosis during oxidative stress...
June 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28394918/a-novel-technique-of-serial-biopsy-in-mouse-brain-tumour-models
#13
Sasha Rogers, Hilary Hii, Joel Huang, Mathew Ancliffe, Nick G Gottardo, Peter Dallas, Sharon Lee, Raelene Endersby
Biopsy is often used to investigate brain tumour-specific abnormalities so that treatments can be appropriately tailored. Dacomitinib (PF-00299804) is a tyrosine kinase inhibitor (TKI), which is predicted to only be effective in cancers where the targets of this drug (EGFR, ERBB2, ERBB4) are abnormally active. Here we describe a method by which serial biopsy can be used to validate response to dacomitinib treatment in vivo using a mouse glioblastoma model. In order to determine the feasibility of conducting serial brain biopsies in mouse models with minimal morbidity, and if successful, investigate whether this can facilitate evaluation of chemotherapeutic response, an orthotopic model of glioblastoma was used...
2017: PloS One
https://www.readbyqxmd.com/read/28394697/genetic-study-of-neuregulin-1-and-receptor-tyrosine-protein-kinase-erbb-4-in-tardive-dyskinesia
#14
Clement C Zai, Arun K Tiwari, Nabilah I Chowdhury, Zeynep Yilmaz, Vincenzo de Luca, Daniel J Müller, Steven G Potkin, Jeffrey A Lieberman, Herbert Y Meltzer, Aristotle N Voineskos, Gary Remington, James L Kennedy
OBJECTIVES: Tardive dyskinesia (TD) is a movement disorder that may develop as a side effect of antipsychotic medication. The aetiology underlying TD is unclear, but a number of mechanisms have been proposed. METHODS: We investigated single-nucleotide polymorphisms (SNPs) in the genes coding for neuregulin-1 and erbB-4 receptor in our sample of 153 European schizophrenia patients for possible association with TD. RESULTS: We found the ERBB4 rs839523 CC genotype to be associated with risk for TD occurrence and increased severity as measured by the Abnormal Involuntary Movement Scale (AIMS) (P = ...
April 10, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/28394324/abnormal-wiring-of-cck-basket-cells-disrupts-spatial-information-coding
#15
Isabel Del Pino, Jorge R Brotons-Mas, André Marques-Smith, Aline Marighetto, Andreas Frick, Oscar Marín, Beatriz Rico
The function of cortical GABAergic interneurons is largely determined by their integration into specific neural circuits, but the mechanisms controlling the wiring of these cells remain largely unknown. This is particularly true for a major population of basket cells that express the neuropeptide cholecystokinin (CCK). Here we found that the tyrosine kinase receptor ErbB4 was required for the normal integration into cortical circuits of basket cells expressing CCK and vesicular glutamate transporter 3 (VGlut3)...
June 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28386192/study-of-lung-cancer-regulatory-network-that-involves-erbb4-and-tumor-marker-gene
#16
Xuhui Ma, Lu Li, Tongde Tian, Huaimin Liu, Qiujian Li, Qilong Gao
Our purpose is to screen out serum tumor markers closely correlated to the nature of solitary pulmonary nodule (SPN) and to draw a regulatory network containing genes correlated to lung cancer. Two hundred and sixty cases of SPN patients confirmed through pathological diagnosis were collected as subjects, factors closely correlated to the nature of SPN were screened out from eight tumor markers through Fisher discriminant method, and functional annotation and pathway analysis were conducted on erbB4 as well as its tumor marker genes by GO and KEGG databases...
March 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28384043/association-of-%C3%AE-secretase-functional-polymorphism-with-risk-of-schizophrenia
#17
Simin Rahimi-Aliabadi, Neda Shahmohammadibeni, Javad Jamshidi, Ehsan Esmaili Shandiz, Reza Mirfakhraie, Mina Ohadi, Farhad Ramezani Nejad, Nader Mansoori, Mohammad Taheri, Fatemeh Gholipour, Susan Moudi, Gouya Tayebi, Shahram Divsalar, Hossein Darvish, Abolfazl Movafagh
AIM: The NRG1-ERBB4 neurotransmitter signaling pathway plays a key role in the pathogenesis of schizophrenia (SZ). The intronic single-nucleotide polymorphism rs707284 in ERBB4 links to PI3K-AKT suppression in SZ. Another protein indirectly affecting NRG1-ERBB4 signaling is β-secretase, which is encoded by the BACE1 gene, and activates NRG1 by proteolytic cleavage. In this study, we aimed to investigate the association of ERBB4 rs707284 and BACE1 rs490460 with the risk of SZ in an Iranian population...
April 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28383694/genetic-variations-in-cancer-related-significantly-mutated-genes-and-lung-cancer-susceptibility
#18
Y Zhang, L Zhang, R Li, D W Chang, Y Ye, J D Minna, J A Roth, B Han, X Wu
Background: Cancer initiation and development are driven by key mutations in driver genes. Applying high-throughput sequencing technologies and bioinformatic analyses, The Cancer Genome Atlas (TCGA) project has identified panels of somatic mutations that contributed to the etiology of various cancers. However, there are few studies investigating the germline genetic variations in these significantly mutated genes (SMGs) and lung cancer susceptibility. Patients and Methods: We comprehensively evaluated 1655 tagged SNPs located in 127 SMGs identified by TCGA, and test their association with lung cancer risk in large-scale case-control study...
April 5, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28379301/embryo-arrest-and-reactivation-potential-candidates-controlling-embryonic-diapause-in-the-tammar-wallaby-and-mink%C3%A2
#19
Jane C Fenelon, Geoffrey Shaw, Stephen R Frankenberg, Bruce D Murphy, Marilyn B Renfree
Embryonic diapause is a period of developmental arrest which requires coordination of a molecular cross-talk between the endometrium and blastocyst to ensure a successful reactivation, but the exact mechanisms are undefined. The objectives of this study were to screen the tammar blastocyst for potential diapause control factors and to investigate the potential for members of the epidermal growth factor (EGF) family to coordinate reactivation. A select number of factors were also examined in the mink to determine whether their expression patterns were conserved across diapause species...
April 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28371053/nanoparticulate-tio2-mediated-inhibition-of-the-wnt-signaling-pathway-causes-dendritic-development-disorder-in-cultured-rat-hippocampal-neurons
#20
Fashui Hong, Yuguan Ze, Yaoming Zhou, Jie Hong, Xiaohon Yu, Lei Sheng, Ling Wang
Titanium dioxide nanoparticles (TiO2 NPs) are increasingly used in daily life, in industry and in environmental clearing, but their potential neurodevelopmental toxicity has been highly debated. In this study, we explored whether TiO2 NPs inhibited development of dendritic morphology and identified possible molecular mechanisms associated with this inhibition in primary cultured rat hippocampal neurons. Results showed that TiO2 NPs decreased neurite length, the number of branches and the spine density, and impaired mitochondrial function in the developing neurons...
March 28, 2017: Journal of Biomedical Materials Research. Part A
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