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https://www.readbyqxmd.com/read/29113229/fatty-acid-synthase-affects-expression-of-erbb-receptors-in-epithelial-to-mesenchymal-transition-of-breast-cancer-cells-and-invasive-ductal-carcinoma
#1
Tingting Chen, Lan Zhou, Hua Li, Yuan Tian, Junqin Li, Lihua Dong, Yuhua Zhao, Dapeng Wei
The aim of the present study was to investigate changes in the expression of ErbBs during epithelial-mesenchymal transition (EMT) of breast cancer cells and its association with the expression of fatty acid synthase (FASN). MCF-7-MEK5 cells were used as the experimental model, while MCF-7 cells were used as a control. Tumor cells were implanted into nude mice for in vivo analysis. Cerulenin was used as a FASN inhibitor. Reverse transcription-polymerase chain reaction and western blot analysis were used to detect expression levels of FASN and ErbB1-4...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29109006/the-rs2292239-polymorphism-in-erbb3-gene-is-associated-with-risk-for-type-1-diabetes-mellitus-in-a-brazilian-population
#2
Natália Emerim Lemos, Cristine Dieter, Luiza Emy Dorfman, Taís Silveira Assmann, Guilherme Coutinho Kullmann Duarte, Luis Henrique Canani, Andrea Carla Bauer, Daisy Crispim
The Erb-b2 receptor tyrosine kinase 3 (ERBB3) belongs to a family of epidermal growth factor receptors of protein tyrosine kinases, and regulates cell survival, differentiation and proliferation in several cell types. Previous studies have suggested that ERBB3 contributes to T1DM pathogenesis by modulating antigen presenting cell function, autoimmunity and cytokine-induced beta-cell apoptosis. Accordingly, some genome-wide association studies identified ERBB3 gene as a susceptibility locus for T1DM, with the strongest association signal being observed for the rs2292239 single nucleotide polymorphism (SNP) in intron 7 of the gene...
November 3, 2017: Gene
https://www.readbyqxmd.com/read/29080678/genome-wide-microrna-analysis-implicates-mir-30b-d-in-the-etiology-of-alopecia-areata
#3
Aylar Tafazzoli, Andreas J Forstner, David Broadley, Andrea Hofmann, Silke Redler, Lynn Petukhova, Kathrin A Giehl, Roland Kruse, Bettina Blaumeiser, Markus Böhm, Marta Bertolini, Alfredo Rossi, Natalie Garcia Bartels, Gerhard Lutz, Hans Wolff, Ulrike Blume-Peytavi, Hermona Soreq, Angela M Christiano, Natalia V Botchkareva, Markus M Nöthen, Regina C Betz
Alopecia areata (AA) is one of the most common forms of human hair loss. Although genetic studies have implicated autoimmune processes in AA etiology, understanding of the etiopathogenesis is incomplete. Recent research has implicated microRNAs, a class of small non-coding RNAs, in diverse autoimmune diseases. To date, no study has investigated the role of microRNAs in AA. In the present study, gene-based analyses were performed for microRNAs using data of the largest genome-wide association (GWA) meta-analysis of AA to date...
October 25, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29080385/evaluation-of-patritumab-with-or-without-erlotinib-in-combination-with-standard-cytotoxic-agents-against-pediatric-sarcoma-xenograft-models
#4
Abhik Bandyopadhyay, Edward Favours, Doris A Phelps, Vanessa Del Pozo, Samson Ghilu, Dias Kurmashev, Joel Michalek, Aron Trevino, Denis Guttridge, Cheryl London, Kenji Hirotani, Ling Zhang, Raushan T Kurmasheva, Peter J Houghton
BACKGROUND: Integrating molecularly targeted agents with cytotoxic drugs used in curative treatment of pediatric cancers is complex. An evaluation was undertaken with the ERBB3/Her3-specific antibody patritumab (P) either alone or with the ERBB1/epidermal growth factor receptor inhibitor erlotinib (E) in combination with standard cytotoxic agents, cisplatin, vincristine, and cyclophosphamide, in pediatric sarcoma xenograft models that express receptors and ligands targeted by these agents...
October 28, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29078343/dual-origin-of-enteric-neurons-in-vagal-schwann-cell-precursors-and-the-sympathetic-neural-crest
#5
Isabel Espinosa-Medina, Ben Jevans, Franck Boismoreau, Zoubida Chettouh, Hideki Enomoto, Thomas Müller, Carmen Birchmeier, Alan J Burns, Jean-François Brunet
Most of the enteric nervous system derives from the "vagal" neural crest, lying at the level of somites 1-7, which invades the digestive tract rostro-caudally from the foregut to the hindgut. Little is known about the initial phase of this colonization, which brings enteric precursors into the foregut. Here we show that the "vagal crest" subsumes two populations of enteric precursors with contrasted origins, initial modes of migration, and destinations. Crest cells adjacent to somites 1 and 2 produce Schwann cell precursors that colonize the vagus nerve, which in turn guides them into the esophagus and stomach...
October 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29050225/hcarg-commd5-inhibits-erbb-receptor-driven-renal-cell-carcinoma
#6
Hiroyuki Matsuda, Carole G Campion, Kyoko Fujiwara, Jin Ikeda, Suzanne Cossette, Thomas Verissimo, Maiko Ogasawara, Louis Gaboury, Kosuke Saito, Kenya Yamaguchi, Satoru Takahashi, Morito Endo, Noboru Fukuda, Masayoshi Soma, Pavel Hamet, Johanne Tremblay
Hypertension-related, calcium-regulated gene (HCaRG/COMMD5) is highly expressed in renal proximal tubules, where it contributes to the control of cell proliferation and differentiation. HCaRG accelerates tubular repair by facilitating re-differentiation of injured proximal tubular epithelial cells, thus improving mouse survival after acute kidney injury. Sustained hyper-proliferation and de-differentiation are important hallmarks of tumor progression. Here, we demonstrate that cancer cells overexpressing HCaRG maintain a more differentiated phenotype, while several of them undergo autophagic cell death...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29048654/telmisartan-inhibits-hepatocellular-carcinoma-cell-proliferation-in-vitro-by-inducing-cell-cycle-arrest
#7
Kyoko Oura, Tomoko Tadokoro, Shintaro Fujihara, Asahiro Morishita, Taiga Chiyo, Eri Samukawa, Yoshimi Yamana, Koji Fujita, Teppei Sakamoto, Takako Nomura, Hirohito Yoneyama, Hideki Kobara, Hirohito Mori, Hisakazu Iwama, Keiichi Okano, Yasuyuki Suzuki, Tsutomu Masaki
Hepatocellular carcinoma (HCC) is the most common primary malignancy of the liver and the third leading cause of cancer-related death. Telmisartan, a widely used antihypertensive drug, is an angiotensin II type 1 (AT1) receptor blocker (ARB) that might inhibit cancer cell proliferation, but the mechanisms through which telmisartan affects various cancers remain unknown. The aim of the present study was to evaluate the effects of telmisartan on human HCC and to assess the expression of microRNAs (miRNAs). We studied the effects of telmisartan on HCC cells using the HLF, HLE, HepG2, HuH-7 and PLC/PRF/5 cell lines...
September 20, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28978093/molecular-characterization-of-circulating-colorectal-tumor-cells-defines-genetic-signatures-for-individualized-cancer-care
#8
Say Li Kong, Xingliang Liu, Nur-Afidah Mohamed Suhaimi, Kenneth Jia Hao Koh, Min Hu, Daniel Yoke San Lee, Igor Cima, Wai Min Phyo, Esther Xing Wei Lee, Joyce A Tai, Yu Miin Foong, Jess Honganh Vo, Poh Koon Koh, Tong Zhang, Jackie Y Ying, Bing Lim, Min-Han Tan, Axel M Hillmer
Studies on circulating tumor cells (CTCs) have largely focused on platform development and CTC enumeration rather than on the genomic characterization of CTCs. To address this, we performed targeted sequencing of CTCs of colorectal cancer patients and compared the mutations with the matched primary tumors. We collected preoperative blood and matched primary tumor samples from 48 colorectal cancer patients. CTCs were isolated using a label-free microfiltration device on a silicon microsieve. Upon whole genome amplification, we performed amplicon-based targeted sequencing on a panel of 39 druggable and frequently mutated genes on both CTCs and fresh-frozen tumor samples...
September 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28949336/disrupted-hippocampal-neuregulin-1-erbb3-signaling-and-dentate-gyrus-granule-cell-alterations-in-suicide
#9
I Mahar, B Labonte, S Yogendran, E Isingrini, L Perret, M A Davoli, A Rachalski, B Giros, G Turecki, N Mechawar
This corrects the article DOI: 10.1038/tp.2017.132.
September 26, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28939861/multiplexed-exchange-paint-imaging-reveals-ligand-dependent-egfr-and-met-interactions-in-the-plasma-membrane
#10
Jeffrey L Werbin, Maier S Avendaño, Verena Becker, Ralf Jungmann, Peng Yin, Gaudenz Danuser, Peter K Sorger
Signal transduction by receptor tyrosine kinases (RTKs) involves complex ligand- and time-dependent changes in conformation and modification state. High resolution structures are available for individual receptors dimers, but less is known about receptor clusters that form in plasma membranes composed of many different RTKs with the potential to interact. We report the use of multiplexed super-resolution imaging (Exchange-PAINT) followed by mean-shift clustering and random forest analysis to measure the precise distributions of five receptor tyrosine kinases (RTKs) from the ErbB, IGF-1R and Met families in breast cancer cells...
September 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28938595/multiple-receptor-tyrosine-kinase-activation-related-to-alk-inhibitor-resistance-in-lung-cancer-cells-with-alk-rearrangement
#11
Se Hoon Choi, Dong Ha Kim, Yun Jung Choi, Seon Ye Kim, Jung-Eun Lee, Ki Jung Sung, Woo Sung Kim, Chang-Min Choi, Jin Kyung Rho, Jae Cheol Lee
The activation of alternative receptor tyrosine kinases (RTKs) is known to mediate resistance to ALK inhibitors. However, the role of multiple RTK activation in resistance has yet to be determined. Two crizotinib-resistant (H3122/CR-1 and H3122/CR-2) and one TAE684-resistant (H2228/TR) cell lines were established. Multi-RTK arrays and Western blots were performed to detect the activation of bypass signals. There were no secondary mutations in the sequencing. EGFR and MET were activated in H3122/CR-1 cells whereas EGFR and IGF1R were activated in H3122/CR-2 cells...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938399/gonadotropin-dependent-neuregulin-1-signaling-regulates-female-rat-ovarian-granulosa-cell-survival
#12
Indrajit Chowdhury, Alicia Branch, Sharifeh Mehrabi, Byron D Ford, Winston E Thompson
Mammalian ovarian follicular development and maturation of an oocyte competent to be fertilized and develop into an embryo depends on tightly regulated, spatiotemporally orchestrated crosstalk among cell death, survival, and differentiation signals through extra- and intraovarian signals, as well as on a permissive ovarian follicular microenvironment. Neuregulin-1 (NRG1) is a member of the epidermal growth factor-like factor family that mediates its effects by binding to a member of the erythroblastoma (ErbB) family...
October 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28924391/snp-rs3202538-in-3-utr-region-of-erbb3-regulated-by-mir-204-and-mir-211-promote-gastric-cancer-development-in-chinese-population
#13
Yaxiang Shi, Xuan Chen, Biao Xi, Xiaowen Yu, Jun Ouyang, Chunxia Han, Yucheng Qin, Defeng Wu, Hong Shen
BACKGROUND/AIMS: ErbB3 is an oncogene which has proliferation and metastasis promotion effects by several signaling pathways. However, the individual expression difference regulated by miRNA was almost still unknown. We focused on the miRNAs associated SNPs in the 3'-UTR of ErbB3 to investigate the further relationship of the SNPs with miRNAs among Chinese gastric cancer (GC) patients. METHODS: We performed case-control study including 851 GC patients and 799 cancer-free controls...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28901268/nrg1-erbb-lost-in-translation-a-new-paradigm-for-lung-cancer
#14
Domenico Trombetta, Antonio Rossi, Federico Pio Fabrizio, A Sparaneo, Paolo Graziano, Vito Michele Fazio, Lucia Anna Muscarella
The ErbB network of receptor tyrosine kinases represents one of the best examples of how the understanding of molecular basis of tumor pathogenesis can give a significant improvement for patients treatment, suggesting new therapeutic options to overcome acquired treatment resistance. This amazing bridge between growth factor receptors and cancer has been consolidated during the last decades through the identification of many driver mutations in the gene key of the RTKs network. Unexpected molecular lesions of the NRG1 gene followed by an aberrant ErbB signaling were recently described as a new molecular features of non-small cell lung cancer, but it has been also sporadically reported in other tumors...
September 11, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28900130/nectin-like-molecule-4-cell-adhesion-molecule-4-inhibits-the-ligand-induced-dimerization-of-erbb3-with-erbb2
#15
Kiyohito Mizutani, Shin Kedashiro, Masahiro Maruoka, Yuki Ueda, Yoshimi Takai
The ligand-induced dimerization of cell surface single-transmembrane receptors is essential for their activation. However, physiological molecules that inhibit their dimerization and activation have not been identified. ErbB3 dimerizes with ErbB2 upon binding of heregulin (HRG) to ErbB3, causing the ErbB2-catalyzed tyrosine phosphorylation of ErbB3, which leads to the activation of the signalling pathways for cell movement and survival. Genetic disorders of this receptor cause tumorigenesis and metastasis of cancers...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28889394/evaluation-of-protein-levels-of-the-receptor-tyrosine-kinase-erbb3-in-serum
#16
Leandro S D'Abronzo, Chong-Xian Pan, Paramita M Ghosh
The epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases (RTK) consists of four members: EGFR1/ErbB1/HER1, ErbB2/HER2, ErbB3/HER3, and HER4/ErbB4. Signaling through these receptors regulates many key cellular activities, such as cell division, migration, adhesion, differentiation, and apoptosis. The ErbB family has been shown to be overexpressed in different types of cancers and is a target of several inhibitors already in clinical trials. ErbB3 lacks a functional tyrosine kinase domain and therefore has not been as extensively studied as the other members of this family, but its importance in activating downstream pathways, such as the PI3K/Akt pathway, makes this RTK a worthy investigation target, especially in urothelial carcinoma where the PI3K/Akt pathway is vital for progression...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28887860/regulation-of-radial-glial-process-growth-by-glutamate-via-mglur5-trpc3-and-neuregulin-erbb4
#17
Lauri M Louhivuori, Pauli M Turunen, Verna Louhivuori, Venkatram Yellapragada, Tommy Nordström, Per Uhlén, Karl E Åkerman
Radial glial cells play an essential role through their function as guides for neuronal migration during development. Disruption of metabotropic glutamate receptor 5 (mGluR5) function retards the growth of radial glial processes in vitro. Neuregulins (NRG) are activated by proteolytic cleavage and regulate (radial) glial maintenance via ErbB3/ErbB4 receptors. We show here that blocking ErbB4 disrupts radial process extension. Soluble NRG acting on ErbB4 receptors is able to promote radial process extension in particular where process elongation has been impeded by blockade of mGluR5, the nonselective cation channel canonical transient receptor potential 3 (TRPC3), or matrix metalloproteases (MMP)...
January 2018: Glia
https://www.readbyqxmd.com/read/28886748/erbb3-drives-mammary-epithelial-survival-and-differentiation-during-pregnancy-and-lactation
#18
Michelle M Williams, David B Vaught, Meghan Morrison Joly, Donna J Hicks, Violeta Sanchez, Philip Owens, Bushra Rahman, David L Elion, Justin M Balko, Rebecca S Cook
BACKGROUND: During pregnancy, as the mammary gland prepares for synthesis and delivery of milk to newborns, a luminal mammary epithelial cell (MEC) subpopulation proliferates rapidly in response to systemic hormonal cues that activate STAT5A. While the receptor tyrosine kinase ErbB4 is required for STAT5A activation in MECs during pregnancy, it is unclear how ErbB3, a heterodimeric partner of ErbB4 and activator of phosphatidyl inositol-3 kinase (PI3K) signaling, contributes to lactogenic expansion of the mammary gland...
September 8, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28881753/sirna-mediated-inactivation-of-her3-improves-the-antitumour-activity-and-sensitivity-of-gefitinib-in-gastric-cancer-cells
#19
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...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28867611/erbb3-interacts-with-hrs-and-is-sorted-to-lysosomes-for-degradation
#20
Anne Marthe Fosdahl, Markus Dietrich, Kay Oliver Schink, Muhammad Salman Malik, Marianne Skeie, Vibeke Bertelsen, Espen Stang
The ErbB family of receptor tyrosine kinases mediates activation of a wide network of signaling pathways. ErbB3 has weak kinase activity, but its six docking sites for the p85 subunit of phosphoinositide 3-kinase make it an important contributor to proliferative signaling. ErbB3 has a relatively short half-life but the exact mechanisms controlling its turnover are unclear as contradictory reports exist. ErbB-mediated signaling is, however, negatively regulated by endocytosis of the receptors, followed by either recycling or degradation...
December 2017: Biochimica et Biophysica Acta
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