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https://www.readbyqxmd.com/read/28731189/identification-of-pivotal-genes-and-pathways-for-spinal-cord-injury-via-bioinformatics-analysis
#1
Zonghao Zhu, Qiang Shen, Liang Zhu, Xiaokang Wei
The present study aimed to identify key genes and pathways associated with spinal cord injury (SCI) and subsequently investigate possible therapeutic targets for the condition. The array data of GSE20907 was downloaded from the Gene Expression Omnibus database and 24 gene chips, including 3‑day, 4‑day, 1‑week, 2‑week and 1‑month post‑SCI together with control propriospinal neurons, were used for the analysis. The raw data was normalized and then the differentially expressed genes (DEGs) in the (A) 2‑week post‑SCI group vs...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28727685/erbb4-signaling-in-dopaminergic-axonal-projections-increases-extracellular-dopamine-levels-and-regulates-spatial-working-memory-behaviors
#2
M Skirzewski, I Karavanova, A Shamir, L Erben, J Garcia-Olivares, J H Shin, D Vullhorst, V A Alvarez, S G Amara, A Buonanno
Genetic variants of Neuregulin 1 (NRG1) and its neuronal tyrosine kinase receptor ErbB4 are associated with risk for schizophrenia, a neurodevelopmental disorder characterized by excitatory/inhibitory imbalance and dopamine (DA) dysfunction. To date, most ErbB4 studies have focused on GABAergic interneurons in the hippocampus and neocortex, particularly fast-spiking parvalbumin-positive (PV+) basket cells. However, NRG has also been shown to modulate DA levels, suggesting a role for ErbB4 signaling in dopaminergic neuron function...
July 20, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28725482/systems-biology-driving-drug-development-from-design-to-the-clinical-testing-of-the-anti-erbb3-antibody-seribantumab-mm-121
#3
REVIEW
Birgit Schoeberl, Art Kudla, Kristina Masson, Ashish Kalra, Michael Curley, Gregory Finn, Emily Pace, Brian Harms, Jaeyeon Kim, Jeff Kearns, Aaron Fulgham, Olga Burenkova, Viara Grantcharova, Defne Yarar, Violette Paragas, Jonathan Fitzgerald, Marisa Wainszelbaum, Kip West, Sara Mathews, Rachel Nering, Bambang Adiwijaya, Gabriela Garcia, Bill Kubasek, Victor Moyo, Akos Czibere, Ulrik B Nielsen, Gavin MacBeath
The ErbB family of receptor tyrosine kinases comprises four members: epidermal growth factor receptor (EGFR/ErbB1), human EGFR 2 (HER2/ErbB2), ErbB3/HER3, and ErbB4/HER4. The first two members of this family, EGFR and HER2, have been implicated in tumorigenesis and cancer progression for several decades, and numerous drugs have now been approved that target these two proteins. Less attention, however, has been paid to the role of this family in mediating cancer cell survival and drug tolerance. To better understand the complex signal transduction network triggered by the ErbB receptor family, we built a computational model that quantitatively captures the dynamics of ErbB signaling...
2017: NPJ Systems Biology and Applications
https://www.readbyqxmd.com/read/28724608/erbb4-deletion-accelerates-renal-fibrosis-following-renal-injury
#4
Fenghua Zeng, Tomoki Miyazawa, Lance A Kloepfer, Raymond C Harris
Tubulointerstitial fibrosis (TIF) is a prominent factor in the progression of chronic kidney disease (CKD) regardless of etiology. ErbB4 expression levels were inversely correlated to renal fibrosis in human fibrotic kidneys. In both unilateral ureteral obstruction (UUO) and ischemia reperfusion injury followed by uninephrectomy (IRI/UNx) mouse models, expression levels of ErbB4 were elevated in the early stage of renal injury. Using mice with global ErbB4 deletion except for transgenic rescue in cardiac tissue (ErbB4-/-ht+), we determined that UUO induced similar injury in proximal tubules compared to wild-type mice but more severe injury in distal nephrons...
July 19, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28699232/acetylated-stat3-functions-as-molecular-adaptor-independent-of-transcriptional-activity-during-human-cardiogenesis
#5
Ashish Mehta, Chrishan J A Ramachandra, Anuja Chitre, Pritpal Singh, Chong Hui Lua, Winston Shim
Activation of signal transducer and activator of transcription 3 (STAT3) is imperative for mammalian development, specifically cardiogenesis. STAT3 phosphorylation and acetylation are key post-translational modifications that regulate its transcriptional activity. Significance of such modifications during human cardiogenesis remains elusive. Using human pluripotent stem cells (hPSCs) to recapitulate cardiogenesis, two independently modified STAT3α (92kDa) isoforms (phosphorylated and acetylated), which perform divergent functions were identified during cardiomyocyte formation...
July 11, 2017: Stem Cells
https://www.readbyqxmd.com/read/28684271/ablating-erbb4-in-pv-neurons-attenuates-synaptic-and-cognitive-deficits-in-an-animal-model-of-alzheimer-s-disease
#6
Heng Zhang, Ling Zhang, Dongming Zhou, Xiao He, Dongpi Wang, Hongyu Pan, Xiaoqin Zhang, Yufei Mei, Qi Qian, Tingting Zheng, Frank E Jones, Binggui Sun
Accumulation of amyloid β (Aβ) induces neuronal, synaptic, and cognitive deficits in patients and animal models of Alzheimer's disease (AD). The underlying mechanisms, however, remain to be fully elucidated. In the present study, we found that Aβ interacted with ErbB4, a member of the receptor tyrosine kinase family and mainly expressed in GABAergic interneurons. Deleting ErbB4 in parvalbumin-expressing neurons (PV neurons) significantly attenuated oligomeric Aβ-induced suppression of long term potentiation (LTP)...
July 4, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28675393/erbb4-signaling-in-the-prelimbic-cortex-regulates-fear-expression
#7
Y-H Chen, Y-J Lan, S-R Zhang, W-P Li, Z-Y Luo, S Lin, J-P Zhuang, X-W Li, S-J Li, J-M Yang, T-M Gao
Many psychiatric diseases such as post-traumatic stress disorder (PTSD) are characterized by abnormal processing of emotional stimuli particularly fear. The medial prefrontal cortex (mPFC) is critically involved in fear expression. However, the molecular mechanisms underlying this process are largely unknown. Neuregulin-1 (NRG1) reportedly regulates pyramidal neuronal activity via ErbB4 receptors, which are abundant in parvalbumin (PV)-expressing interneurons in the PFC. In this study, we aimed to determine how NRG1/ErbB4 signaling in the mPFC modulates fear expression and found that tone-cued fear conditioning increased NRG1 expression in the mPFC...
July 4, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28671339/role-of-erbb-her-family-of-receptor-tyrosine-kinases-in-cholangiocyte-biology
#8
REVIEW
Anna Pellat, Javier Vaquero, Laura Fouassier
The ErbB/HER family comprises four distinct tyrosine kinase receptors, EGFR/ErbB1/HER1, ErbB2/HER2, ErbB3/HER3 and ErbB4/HER4, which trigger intracellular signals at the origin of essential cellular functions including differentiation, proliferation, survival and migration. Epithelial cells, named cholangiocytes, that line intrahepatic and extrahepatic bile ducts, contribute substantially to biliary secretory functions and bile transport. Although ErbB receptors have been widely studied in cholangiocarcinoma (CCA), a malignancy of the biliary tract, knowledge of these receptors in biliary epithelium physiology and in non-malignant cholangiopathies is far from completed...
July 3, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28670936/identification-and-characterization-of-erbb4-kinase-inhibitors-for-effective-breast-cancer-therapy
#9
Ankita Sahu, P K Patra, Manoj Kumar Yadav, Meena Varma
The overexpression of ErbB4 is associated with aggressive disease biology and reduced the survival of breast cancer patients. We have used ErbB4 receptor as a novel drug target to spearhead the rational drug design. The present study is divided into two parts. In the first part, we have exploited the hidden information inside ErbB4 kinase receptor both at sequence and structural level. PSI-BLAST algorithm is used to search similar sequences against ErbB4 kinase sequence. Top 15 sequences with high identity were selected for finding conserved and variable regions among sequences using multiple sequence alignment...
July 3, 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28667174/erbb4-deletion-from-medium-spiny-neurons-of-the-nucleus-accumbens-core-induces-schizophrenia-like-behaviors-via-elevated-gabaar-%C3%AE-1-expression
#10
Hong-Yan Geng, Jing Zhang, Jian-Ming Yang, Yue Li, Ning Wang, Mao Ye, Xiao-Juan Chen, Hong Lian, Xiao-Ming Li
Medium spiny neurons (MSNs), the major GABAergic projection neurons in the striatum, are implicated in many neuropsychiatric diseases, such as schizophrenia, but the underlying mechanisms remain unclear. We found that a deficiency in Erbb4, a schizophrenia risk gene, in MSNs of the nucleus accumbens (NAc) core but not the dorsomedial striatum (DMS) markedly induced schizophrenia-like behaviors such as hyperactivity, abnormal marble-burying behavior, damaged social novelty recognition and impaired sensorimotor gating function in male mice...
June 30, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28646138/uniting-the-neuro-developmental-and-immunological-hypotheses-neuregulin-1-receptor-erbb-and-toll-like-receptor-activation-in-first-episode-schizophrenia
#11
Szabolcs Kéri, Csilla Szabó, Oguz Kelemen
Current pathophysiological models of schizophrenia focus on neurodevelopmental and immunological mechanisms. We investigated a molecular pathway traditionally linked to the neurodevelopmental hypothesis (neuregulin 1 - ErbB), and pathogen-associated pattern recognition receptors associated with the immune hypothesis (Toll-like receptors, TLRs). We recruited 42 first-episode, drug-naïve patients with schizophrenia and 42 matched healthy control subjects. In monocytes TLR4/TLR5 and ErbB expressions were measured with flow-cytometry...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28638929/-research-progress-of-neuregulin-4-biological-function
#12
Fan Yang, Xiao-Nan Li
Neuregulin 4 (NRG4) is a kind of protein containing epidermal growth factor (EGF)-like domains, mainly expressed and secreted by brown adipocytes. It specifically activates EGF receptor ErbB4 (v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 4) to stimulate cell proliferation, inhibit apoptosis and improve energy metabolism of cells. Increasing evidence has shown that NRG4 plays an important role in epithelial cell-related diseases, cardiovascular diseases, tumors and glycolipid metabolic diseases, and therefore it could be a potential therapeutic target of some diseases...
June 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28629469/a-putative-molecular-network-associated-with-colon-cancer-metastasis-constructed-from-microarray-data
#13
Songtao Chu, Haipeng Wang, Miao Yu
BACKGROUND: This study aimed to identify the potential molecular network associated with colon cancer metastasis. METHODS: A gene expression profile dataset (GSE40367) downloaded from Gene Expression Omnibus was used to identify and compare differentially expressed genes (DEGs) between primary colon adenocarcinoma tissues and matched tissue samples of liver metastases of colon adenocarcinoma. After the functional analysis of the DEGs, their protein-protein interactions (PPIs) were analyzed, and the transcription factors (TFs) and microRNAs (miRNAs) that regulated these DEGs were predicted...
June 19, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28623147/neuregulin-1-protects-mouse-cerebellum-against-oxidative-stress-and-neuroinflammation
#14
Junping Xu, Chengliang Hu, Shuangxi Chen, Huifan Shen, Qiong Jiang, Peizhi Huang, Weijiang Zhao
Cerebellum undergoes degenerative changes in neurodegenerative diseases. Two main factors including oxidative stress and neuroinflammation mediate neurodegeneration. Neuregulin-1 (Nrg1) has been implicated in many neurodegenerative diseases, while the underlying mechanisms are unknown. We hypothesized that Nrg1 prevents oxidative stress and neuroinflammation in neurodegeneration. We found a positive correlation between Nrg1 protein levels and ErbB4 and ErbB2 receptor phosphorylation in microarrays of normal human cerebellar tissue...
June 13, 2017: Brain Research
https://www.readbyqxmd.com/read/28619094/morphologic-and-molecular-study-of-lung-cancers-associated-with-idiopathic-pulmonary-fibrosis-and-other-pulmonary-fibroses
#15
Alice Guyard, Claire Danel, Nathalie Théou-Anton, Marie-Pierre Debray, Laure Gibault, Pierre Mordant, Yves Castier, Bruno Crestani, Gérard Zalcman, Hélène Blons, Aurélie Cazes
BACKGROUND: Primitive lung cancers developed on lung fibroses are both diagnostic and therapeutic challenges. Their incidence may increase with new more efficient lung fibrosis treatments. Our aim was to describe a cohort of lung cancers associated with idiopathic pulmonary fibrosis (IPF) and other lung fibrotic disorders (non-IPF), and to characterize their molecular alterations using immunohistochemistry and next-generation sequencing (NGS). METHODS: Thirty-one cancer samples were collected from 2001 to 2016 in two French reference centers for pulmonary fibrosis - 18 for IPF group and 13 for non-IPF group...
June 15, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28608461/epidermal-growth-factor-signals-attenuate-phenotypic-and-functional-development-of-neocortical-gaba-neurons
#16
Hisaaki Namba, Tadasato Nagano, Eiichi Jodo, Satoshi Eifuku, Masao Horie, Hirohide Takebayashi, Yuriko Iwakura, Hidekazu Sotoyama, Nobuyuki Takei, Hiroyuki Nawa
Phenotypic development of neocortical GABA neurons is highly plastic and promoted by various neurotrophic factors such as neuregulin-1. A subpopulation of GABA neurons expresses not only neuregulin receptor (ErbB4) but also epidermal growth factor (EGF) receptor (ErbB1) during development, but the neurobiological action of EGF on this cell population is less understood than that of neuregulin-1. Here we examined the effects of exogenous EGF on immature GABA neurons both in culture and in vivo and also explored physiological consequences in adults...
June 13, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28592819/spatial-and-temporal-boundaries-of-nmda-receptor-hypofunction-leading-to-schizophrenia
#17
Kazu Nakazawa, Vivek Jeevakumar, Kazuhito Nakao
The N-methyl-D-aspartate receptor hypofunction is one of the most prevalent models of schizophrenia. For example, healthy subjects treated with uncompetitive N-methyl-D-aspartate receptor antagonists elicit positive, negative, and cognitive-like symptoms of schizophrenia. Patients with anti-N-methyl-D-aspartate receptor encephalitis, which is likely caused by autoantibody-mediated down-regulation of cell surface N-methyl-D-aspartate receptors, often experience psychiatric symptoms similar to schizophrenia initially...
February 3, 2017: NPJ Schizophrenia
https://www.readbyqxmd.com/read/28560253/spatial-and-temporal-boundaries-of-nmda-receptor-hypofunction-leading-to-schizophrenia
#18
Kazu Nakazawa, Vivek Jeevakumar, Kazuhito Nakao
The N-methyl-d-aspartate receptor hypofunction is one of the most prevalent models of schizophrenia. For example, healthy subjects treated with uncompetitive N-methyl-d-aspartate receptor antagonists elicit positive, negative, and cognitive-like symptoms of schizophrenia. Patients with anti-N-methyl-d-aspartate receptor encephalitis, which is likely caused by autoantibody-mediated down-regulation of cell surface N-methyl-d-aspartate receptors, often experience psychiatric symptoms similar to schizophrenia initially...
2017: NPJ Schizophrenia
https://www.readbyqxmd.com/read/28542597/mir-193b-downregulated-in-ewing-sarcoma-targets-the-erbb4-oncogene-to-inhibit-anchorage-independent-growth
#19
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
#20
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
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