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Epithelial growth factor receptor

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https://www.readbyqxmd.com/read/27929428/her2-analysis-in-sporadic-thyroid-cancer-of-follicular-cell-origin
#1
Rosaria M Ruggeri, Alfredo Campennì, Giuseppe Giuffrè, Luca Giovanella, Massimiliano Siracusa, Angela Simone, Giovanni Branca, Rosa Scarfì, Francesco Trimarchi, Antonio Ieni, Giovanni Tuccari
The Epidermal Growth Factor Receoptor (EGFR) family member human epidermal growth factor receptor 2 (HER2) is overexpressed in many human epithelial malignancies, representing a molecular target for specific anti-neoplastic drugs. Few data are available on HER2 status in differentiated thyroid cancer (DTC). The present study was aimed to investigate HER2 status in sporadic cancers of follicular cell origin to better clarify the role of this receptor in the stratification of thyroid cancer. By immunohistochemistry and fluorescence in-situ hybridization, HER2 expression was investigated in formalin-fixed paraffin-embedded surgical specimens from 90 DTC patients, 45 follicular (FTC) and 45 papillary (PTC) histotypes...
December 6, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27927603/lysophosphatidic-acid-signaling-through-its-receptor-initiates-profibrotic-epithelial-cell-fibroblast-communication-mediated-by-epithelial-cell-derived-connective-tissue-growth-factor
#2
Norihiko Sakai, Jerold Chun, Jeremy S Duffield, David Lagares, Takashi Wada, Andrew D Luster, Andrew M Tager
The expansion of the fibroblast pool is a critical step in organ fibrosis, but the mechanisms driving expansion remain to be fully clarified. We previously showed that lysophosphatidic acid (LPA) signaling through its receptor LPA1 expressed on fibroblasts directly induces the recruitment of these cells. Here we tested whether LPA-LPA1 signaling drives fibroblast proliferation and activation during the development of renal fibrosis. LPA1-deficient (LPA1(-/-)) or -sufficient (LPA1(+/+)) mice were crossed to mice with green fluorescent protein expression (GFP) driven by the type I procollagen promoter (Col-GFP) to identify fibroblasts...
December 4, 2016: Kidney International
https://www.readbyqxmd.com/read/27925186/up-regulation-of-transient-receptor-potential-melastatin-6-channel-expression-by-tumor-necrosis-factor-%C3%AE-in-the-presence-of-epidermal-growth-factor-receptor-tyrosine-kinase-inhibitor
#3
Chisa Furukawa, Naoko Fujii, Aya Manabe, Toshiyuki Matsunaga, Satoshi Endo, Hajime Hasegawa, Yoshinori Ito, Masahiko Yamaguchi, Yasuhiro Yamazaki, Akira Ikari
Anti-epidermal growth factor receptor (EGFR) drugs such as erlotinib and gefitinib cause a side effect of hypomagnesemia, but chemotherapy to treat this has not yet been developed. The transient receptor potential melastatin 6 (TRPM6) channel is involved in the reabsorption of Mg(2+) in the renal tubule. We reported previously that the expression of TRPM6 is up-regulated by epidermal growth factor (EGF) in renal tubular epithelial NRK-52E and HEK293 cells. EGF-induced elevation of TRPM6 expression was inhibited by erlotinib, gefitinib, and lapatinib...
December 7, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27923392/the-role-of-hgf-c-met-signaling-pathway-in-lymphoma
#4
REVIEW
Bao Quoc Lam, Lu Dai, Zhiqiang Qin
Inappropriate activation of c-mesenchymal-epithelial transition (MET), the receptor tyrosine kinase (RTK) for hepatocyte growth factor (HGF), has been implicated in tumorigenesis and represented a promising therapeutic target for developing anticancer agents. In contrast to other solid tumors, there are limited data describing the functional role of HGF/c-MET signaling pathway in lymphoma. In the current review, we summarize recent findings about the expression, cellular mechanisms/functions, and therapeutic application of HGF/c-MET in different types of lymphoma, especially B cell lymphoma, T and NK cell lymphoma, and Hodgkin lymphoma...
December 7, 2016: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/27921041/signaling-crosstalk-between-tubular-epithelial-cells-and-interstitial-fibroblasts-after-kidney-injury
#5
REVIEW
Roderick J Tan, Dong Zhou, Youhua Liu
BACKGROUND: A wide variety of kidney diseases ultimately lead to tubulointerstitial damage. The initial site of injury is usually the renal tubules, with activation of fibroblasts occurring later. Self-limited disease is characterized by transient cellular activation with timed deactivation and ultimately a return to normal functioning, whereas sustained responses characterize chronic disease and the development of irreversible fibrosis. The underlying molecular and cellular mechanisms of this cascade of events remain an area of active research...
October 2016: Kidney Diseases
https://www.readbyqxmd.com/read/27918764/effect-of-fluorouracil-leucovorin-and-oxaliplatin-with-or-without-onartuzumab-in-her2-negative-met-positive-gastroesophageal-adenocarcinoma-the-metgastric-randomized-clinical-trial
#6
Manish A Shah, Yung-Jue Bang, Florian Lordick, Maria Alsina, Meng Chen, Stephen P Hack, Jean Marie Bruey, Dustin Smith, Ian McCaffery, David S Shames, See Phan, David Cunningham
Importance: Dysregulation of the mesenchymal-epithelial transition (MET) signaling pathway is associated with poor prognosis in gastroesophageal adenocarcinoma (GEC). We report results of METGastric, a phase 3 trial of the MET inhibitor onartuzumab plus standard first-line chemotherapy for human epidermal growth factor receptor 2 (HER2)-negative, MET-positive, advanced GEC. Objective: To determine whether the addition of onartuzumab to first-line fluorouracil, leucovorin, and oxaliplatin (mFOLFOX6) improves efficacy compared with mFOLFOX6 plus placebo in HER2-negative, MET-positive GEC...
December 1, 2016: JAMA Oncology
https://www.readbyqxmd.com/read/27916908/epidermal-growth-factor-receptor-status-in-circulating-tumor-cells-as-a-predictive-biomarker-of-sensitivity-in-castration-resistant-prostate-cancer-patients-treated-with-docetaxel-chemotherapy
#7
Takatsugu Okegawa, Naoshi Itaya, Hidehiko Hara, Mitsuhiro Tambo, Kikuo Nutahara
OBJECTIVE: We examined whether epidermal growth factor receptor (EGFR) expression in circulating tumor cells (CTCs) can be used to predict survival in a population of bone-metastatic castration-resistant prostate cancer (mCRPC) patients treated with docetaxel chemotherapy. METHODS: All patients with mCRPC who had experienced treatment failure with androgen-deprivation therapy and had received docetaxel chemotherapy were eligible. CTCs and EGFR expression in CTCs were enumerated with the CellSearch System in whole blood...
November 30, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27913793/inflammatory-signaling-pathways-induced-by-helicobacter-pylori-in-primary-human-gastric-epithelial-cells
#8
Cong Tri Tran, Magali Garcia, Martine Garnier, Christophe Burucoa, Charles Bodet
Inflammatory signaling pathways induced by Helicobacter pylori remain unclear, having been studied mostly on cell-line models derived from gastric adenocarcinoma with potentially altered signaling pathways and nonfunctional receptors. Here, H. pylori-induced signaling pathways were investigated in primary human gastric epithelial cells. Inflammatory response was analyzed on chemokine mRNA expression and production after infection of gastric epithelial cells by H. pylori strains, B128 and B128ΔcagM, a cag type IV secretion system defective strain...
December 1, 2016: Innate Immunity
https://www.readbyqxmd.com/read/27913191/the-shedding-derived-soluble-receptor-for-advanced-glycation-endproducts-sustains-inflammation-during-acute-pseudomonas-aeruginosa-lung-infection
#9
Antonella Antonelli, Stefania Di Maggio, Joanna Rejman, Francesca Sanvito, Alice Rossi, Alessandro Catucci, Andrea Gorzanelli, Alessandra Bragonzi, Marco E Bianchi, Angela Raucci
BACKGROUND: The membrane-bound isoform of the receptor for advanced glycation end products (FL-RAGE) is primarily expressed by alveolar epithelial cells and undergoes shedding by the protease ADAM10, giving rise to soluble cleaved RAGE (cRAGE). RAGE has been associated with the pathogenesis of several acute and chronic lung disorders. Whether the proteolysis of FL-RAGE is altered by a given inflammatory stimulus is unknown. Pseudomonas aeruginosa causes nosocomial infections in hospitalized patients and is the major pathogen associated with chronic lung diseases...
November 29, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27908934/gata6-promotes-hair-follicle-progenitor-cell-renewal-by-genome-maintenance-during-proliferation
#10
Alex B Wang, Ying V Zhang, Tudorita Tumbar
Cell proliferation is essential to rapid tissue growth and repair, but can result in replication-associated genome damage. Here, we implicate the transcription factor Gata6 in adult mouse hair follicle regeneration where it controls the renewal of rapidly proliferating epithelial (matrix) progenitors and hence the extent of production of terminally differentiated lineages. We find that Gata6 protects against DNA damage associated with proliferation, thus preventing cell cycle arrest and apoptosis. Furthermore, we show that in vivo Gata6 stimulates EDA-receptor signaling adaptor Edaradd level and NF-κB pathway activation, known to be important for DNA damage repair and stress response in general and for hair follicle growth in particular...
December 1, 2016: EMBO Journal
https://www.readbyqxmd.com/read/27901498/targeting-the-vegf-c-vegfr3-axis-suppresses-slug-mediated-cancer-metastasis-and-stemness-via-inhibition-of-kras-yap1-signaling
#11
REVIEW
Yu-Wen Yeh, Ching-Chia Cheng, Shu-Ting Yang, Chi-Feng Tseng, Ting-Yu Chang, Sin-Ying Tsai, Earl Fu, Chien-Ping Chiang, Li-Chuan Liao, Pei-Wen Tsai, Yung-Luen Yu, Jen-Liang Su
Vascular endothelial growth factor-C (VEGF-C) has been implicated in epithelial-mesenchymal transition (EMT) processes and various human cancers, including skin cancer. Skin cancer is an aggressive human malignancy with increasing incidence worldwide; however, the underlying mechanisms involved in VEGF-C-induced skin cancer stemness and metastasis remain unclear. Here, we report that VEGF-C enhances skin cancer migration, invasion and stemness through Slug up-regulation. Oncomine database analysis indicated that the KRAS/MAPK (mitogen-activated protein kinases) pathway and YAP1 (yes-associated protein 1) expression are positively correlated with metastatic skin cancer...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27898984/transforming-growth-factor-%C3%AE-signaling-cascade-induced-by-mechanical-stimulation-of-fluid-shear-stress-in-cultured-corneal-epithelial-cells
#12
Tsugiaki Utsunomiya, Akihiro Ishibazawa, Taiji Nagaoka, Kazuomi Hanada, Harumasa Yokota, Nobuhito Ishii, Akitoshi Yoshida
Purpose: Because blinking is regarded as mechanical stimulation of fluid shear stress on the corneal epithelial cells, we investigated the effects of fluid shear stress on cultured human corneal epithelial cells (HCECs). Methods: The HCECs were exposed to shear stress (0, 1.2, 12 dyne/cm2) with the parallel-plate type of flow chamber. Wound healing, cellular proliferation, growth factor expression, TGF-β1 concentration in the culture supernatant, and phosphorylation of SMAD2 were investigated...
November 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27898738/receptor-type-protein-tyrosine-phosphatase-%C3%AE-and-colony-stimulating-factor-1-receptor-in-the-intestine-cellular-expression-and-cytokine-and-chemokine-responses-by-interleukin-34-and-colony-stimulating-factor-1
#13
Stephanie Zwicker, Daniela Bureik, Madeleen Bosma, Gisele Lago Martinez, Sven Almer, Elisabeth A Boström
Differential intestinal expression of the macrophage growth factors colony stimulating factor-1 (CSF-1), interleukin (IL)-34, and their shared CSF-1 receptor (CSF-1R) in inflammatory bowel disease (IBD) has been shown. Diverse expression between CSF-1 and IL-34, suggest that IL-34 may signal via an alternate receptor. Receptor-type protein-tyrosine phosphatase ζ (PTPRZ1, RPTP-ζ), an additional IL-34 receptor, was recently identified. Here, we aimed to assess PTPRZ1 expression in IBD and non-IBD intestinal biopsies...
2016: PloS One
https://www.readbyqxmd.com/read/27895757/expression-of-semaphorin-6d-and-its-receptor-plexin-a1-in-gastric-cancer-and-their-association-with-tumor-angiogenesis
#14
Yanjie Lu, Qian Xu, Lei Chen, Yanzhen Zuo, Shaochen Liu, Yatao Hu, Xiaoru Li, Yuhong Li, Xiangyang Zhao
The semaphorin and plexin family of ligands and receptor proteins provides important axon growth and guidance cues required for development. In recent years, studies have expanded their role in the regulation of cardiac morphogenesis and tumorigenesis. However, the mechanism responsible for their role in regulating cancer development and progression has not been clarified. In the present study, semaphorin 6D (Sema6D) and its receptor plexin-A1 were identified to be expressed at high levels in vascular epithelial cells within gastric cancer, and were positively correlated with vascular endothelial growth factor receptor 2 (VEGFR2)...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27894335/everolimus-and-exemestane-in-long-survival-hormone-receptor-positive-male-breast-cancer-case-report
#15
Z Ballatore, M Pistelli, N Battelli, A Pagliacci, M De Lisa, R Berardi, S Cascinu
BACKGROUND: Male breast cancer is a rare event, accounting for approximately 1% of all breast carcinomas. Although men with breast cancer had poorer survival when compared with women, data on prognosis principally derive from retrospective studies and from extrapolation of female breast cancer series. We reported the case of a very long survival patient. CASE PRESENTATION: A caucasian 42-year-old man underwent radical mastectomy with axillary dissection for breast cancer in 1993...
November 28, 2016: BMC Research Notes
https://www.readbyqxmd.com/read/27894090/gremlin-promotes-retinal-pigmentation-epithelial-rpe-cell-proliferation-migration-and-vegf-production-via-activating-vegfr2-akt-mtorc2-signaling
#16
Yuan Liu, Zhijun Chen, Haixia Cheng, Juan Chen, Jing Qian
Retinopathy of prematurity (ROP) is characterized by late-phase pathologic retinal vasoproliferation. Gremlin is a novel vascular endothelial growth factors (VEGF) receptor 2 (VEGFR2) agonist and promotes angiogenic response. We demonstrated that gremlin expression was significantly increased in retinas of ROP model mice, which was correlated with VEGF upregulation. In retinal pigmentation epithelial (RPE) cells, gremlin activated VEGFR2-Akt-mTORC2 (mammalian target of rapamycin complex 2) signaling, and promoted cell proliferation, migration and VEGF production...
November 23, 2016: Oncotarget
https://www.readbyqxmd.com/read/27893433/regulation-of-brachyury-by-fibroblast-growth-factor-receptor-1-in-lung-cancer
#17
Yunping Hu, Xin Feng, Akiva Mintz, W Jeffrey Petty, Wesley Hsu
Recent evidence suggests that T-box transcription factor brachyury plays an important role in lung cancer development and progression. However, the mechanisms underlying brachyury-driven cellular processes remain unclear. Here we found that fibroblast growth factor receptor 1/mitogen-activated protein kinase (FGFR1/MAPK) signaling regulated brachyury in lung cancer. Analysis of FGFR1-4 and brachyury expression in human lung tumor tissue and cell lines found that only expression of FGFR1 was positively correlated with brachyury expression...
November 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/27892764/stat3-mediated-smad3-activation-underlies-oncostatin-m-induced-senescence
#18
Benjamin L Bryson, Damian J Junk, Rocky Cipriano, Mark W Jackson
Cytokines in the developing tumor microenvironment (TME) can drive transformation and subsequent progression towards metastasis. Elevated levels of the Interleukin-6 (IL-6) family cytokine Oncostatin M (OSM) in the breast TME correlate with aggressive, metastatic cancers, increased tumor recurrence, and poor patient prognosis. Paradoxically, OSM engages a tumor-suppressive, Signal Transducer and Activator of Transcription 3 (STAT3)-dependent senescence response in normal and non-transformed human mammary epithelial cells (HMEC)...
November 28, 2016: Cell Cycle
https://www.readbyqxmd.com/read/27888699/tumor-detection-using-magnetosome-nanoparticles-functionalized-with-a-newly-screened-egfr-her2-targeting-peptide
#19
Zhichu Xiang, Xiaoliang Yang, Junjie Xu, Wenjia Lai, Zihua Wang, Zhiyuan Hu, Jiesheng Tian, Lingling Geng, Qiaojun Fang
A novel peptide (P75) targeting EGFR and HER2 is successfully screened from a one-bead-one-compound (OBOC) library containing approximately 2 × 10(5) peptides built with the aid of computational simulation. In vitro and in vivo analyses show that P75 binds to human epithelial growth factor receptor (EGFR) with nanomolar affinity and to epithelial growth factor receptor-2 (HER2) with a lower affinity but comparable to other reported peptides. The peptide is used to modify the surface of magnetosome nanoparticles (NPs) for targeted magnetic resonance imaging (MRI)...
January 2017: Biomaterials
https://www.readbyqxmd.com/read/27888538/specific-n-glycan-alterations-are-coupled-in-epithelial-mesenchymal-transition-induced-by-egf-in-ge11-epithelial-cells
#20
Qingsong Xu, Chen Qu, Wenjing Wang, Jianguo Gu, Yuguang Du, Linsheng Song
Epithelial-mesenchymal transition (EMT) is a phenomenon in cancer progression during which cancer cells undergo remarkable alteration acquiring highly invasive property. The aim of this study was to evaluate specific N-glycan alterations during EMT induced by epidermal growth factor (EGF) in GE11 epithelial cells. Herein, we demonstrated that EGF activated epidermal growth factor receptor (EGFR)/Akt/extracellular signal-regulated kinase (ERK) phosphorylation and promoted GE11 cell proliferation. Meanwhile, EGF stimulated the epithelial cells to undergo morphological alteration, destroying cell-cell inter-contact and exhibiting mesenchymal cells higher metastatic potential...
November 26, 2016: Cell Biology International
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