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Epithelial growth factor receptor

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https://www.readbyqxmd.com/read/29150934/the-current-status-and-perspectives-regarding-the-clinical-implication-of-intracellular-calcium-in-breast-cancer
#1
REVIEW
Amir Tajbakhsh, Alireza Pasdar, Mehdi Rezaee, Mostafa Fazeli, Saman Soleimanpour, Seyed Mahdi Hassanian, Zahra FarshchiyanYazdi, Tayebe Younesi Rad, Gordon A Ferns, Amir Avan
Calcium ions (Ca(2+) ) act as second messengers in intracellular signaling. Ca(2+) pumps, channels, sensors, and calcium binding proteins, regulate the concentrations of intracellular Ca(2+) as a key regulator of important cellular processes such as gene expression, proliferation, differentiation, DNA repair, apoptosis, metastasis, and hormone secretion. Intracellular Ca(2+) also influences the functions of several organelles, that include: the endoplasmic reticulum, mitochondria, the Golgi, and cell membrane both in normal and breast cancer cells...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29146618/management-of-adverse-events-associated-with-cabozantinib-therapy-in-renal-cell-carcinoma
#2
REVIEW
Manuela Schmidinger, Romano Danesi
Cabozantinib was recently approved for the treatment of advanced renal cell carcinoma (RCC) after treatment with vascular endothelial growth factor (VEGF)-targeted therapy. Cabozantinib is a multikinase inhibitor targeting VEGF receptor (VEGFR) 2, mesenchymal-epithelial transition receptor, and "anexelekto" receptor tyrosine kinase. A 60-mg daily dose led to improved overall survival and progression-free survival (PFS) versus everolimus in advanced RCC patients as a second- or later-line treatment in the METEOR trial...
November 16, 2017: Oncologist
https://www.readbyqxmd.com/read/29144820/pheochromocytoma-a-genetic-and-diagnostic-update
#3
Leilani B Mercado-Asis, Katherine I Wolf, Ivana Jochmanova, David Taïeb
OBJECTIVE: Pheochromocytomas and paragangliomas (PPGLs) are neuroendocrine tumors derived from adrenal or extra-adrenal locations, respectively. Upon suspicion of PPGL, specific metabolomic, molecular, biochemical, imaging, and histopathological studies are performed to prove, localize, treat, and monitor disease progression. Recently, improved diagnostic tools allow physicians to accurately diagnose PPGL, even in patients presenting with small (less than 1 cm) or biochemically silent tumors, which previously delayed proper detection and treatment...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29140406/smad3-stat3-crosstalk-in-pathophysiological-contexts
#4
Yuka Itoh, Masao Saitoh, Keiji Miyazawa
Smad3 and STAT3 are intracellular molecules that transmit signals from plasma membrane receptors to the nucleus. Smad3 operates downstream of growth/differentiation factors that utilize activin receptor-like kinase (ALK)-4, 5, or 7, such as transforming growth factor-β (TGF-β), activin, and myostatin. STAT3 principally functions downstream of cytokines that exert their effects via gp130 and Janus family kinases, including interleukin-6 (IL-6), leukemia inhibitory factor (LIF), and oncostatin M. Accumulating evidence indicates that Smad3 and STAT3 engage in crosstalk in a highly context-dependent fashion, cooperating in some conditions while acting antagonistically each other in others...
November 13, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29137389/targeting-src-attenuates-peritoneal-fibrosis-and-inhibits-the-epithelial-to-mesenchymal-transition
#5
Jun Wang, Li Wang, Liuqing Xu, Yingfeng Shi, Feng Liu, Hualin Qi, Na Liu, Shougang Zhuang
Src has been reported to mediate tissue fibrosis in several organs, but its role in peritoneal fibrosis remains unknown. In this study, we evaluated the therapeutic effect of KX2-391, a highly selective inhibitor of Src, on the development of peritoneal fibrosis in a rat model. Daily intraperitoneal injections of chlorhexidine gluconate induced peritoneal fibrosis, as indicated by thickening of the submesothelial area with an accumulation of collagen fibrils and activation of myofibroblasts. This was accompanied by time-dependent phosphorylation of Src at tyrosine 416...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136943/adam12-induces-emt-and-promotes-cell-migration-invasion-and-proliferation-in-pituitary-adenomas-via-egfr-erk-signaling-pathway
#6
Junwen Wang, Zhuo Zhang, Ran Li, Feng Mao, Wei Sun, Juan Chen, Huaqiu Zhang, Jörg-W Bartsch, Kai Shu, Ting Lei
Pituitary adenomas are the second most common primary brain tumor with invasive properties. We have previously identified that ADAM12 (a disintegrin and metalloprotease 12) overexpression is associated with the tumor invasion of pituitary adenomas, however, the underlying mechanism remains unknown. This study aims to elucidate the mechanistic role of ADAM12 in regulating the tumor invasion of pituitary adenomas. In this study, we first showed that ADAM12 expression was concomitant with epithelial to mesenchymal transition (EMT) process in clinical specimens of human pituitary adenomas...
November 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29136529/yap-dependent-axl-overexpression-mediates-resistance-to-egfr-inhibitors-in-nsclc
#7
Elena Ghiso, Cristina Migliore, Vito Ciciriello, Elena Morando, Annalisa Petrelli, Simona Corso, Emmanuele De Luca, Gaia Gatti, Marco Volante, Silvia Giordano
The Yes-associated protein (YAP) is a transcriptional co-activator upregulating genes that promote cell growth and inhibit apoptosis. The main dysregulation of the Hippo pathway in tumors is due to YAP overexpression, promoting epithelial to mesenchymal transition, cell transformation, and increased metastatic ability. Moreover, it has recently been shown that YAP plays a role in sustaining resistance to targeted therapies as well. In our work, we evaluated the role of YAP in acquired resistance to epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors in lung cancer...
November 11, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29130787/mir-19a-and-mir-424-target-tgfbr3-to-promote-epithelial-to-mesenchymal-transition-and-migration-of-tongue-squamous-cell-carcinoma-cells
#8
Duo Li, Ke Liu, Zhiyong Li, Jian Wang, Xiaofeng Wang
Previous studies indicate that TGFBR3 (transforming growth factor type III receptor, also known as betaglycan), a novel suppressor of progression in certain cancers, is down-regulated in tongue squamous cell carcinoma (TSCC). However, the role of this factor as an upstream regulator in TSCC cells remains to be elucidated. The present study was designed to elucidate whether TGFBR3 gene expression is regulated by two microRNA molecules, miR-19a and miR-424. The study also aimed to determine if these microRNAs promote migration of CAL-27 human oral squamous cells...
November 13, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/29128616/di-n-octylphthalate-acts-as-a-proliferative-agent-in-murine-cell-hepatocytes-by-regulating-the-levels-of-tgf-%C3%AE-and-pro-apoptotic-proteins
#9
Shelby Buckner, Allison Pruitt, Cecilia Thomas, Monisha Amin, Laurence Miller, Faith Wiley, Maria Eugenia Sabbatini
Di-n-octylphthalate (DNOP) is a phthalate used in the manufacturing of a wide variety of polyvinyl chloride-containing medical and consumer products. A study on chronic exposure to DNOP in rodents showed the development of pre-neoplastic hepatic lesions following exposure to a tumor initiator. The objective of this study was to identify the mechanisms by which DNOP leads to pre-neoplastic hepatic lesions. Mouse hepatocyte AML-12 and FL83B cells were treated with DNOP. The rate of cell proliferation was increased in treated cells in a concentration-dependent manner...
November 8, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29125991/effects-of-quercetin-combined-with-anticancer-drugs-on-metastasis-associated-factors-of-gastric-cancer-cells-in-vitro-and-in-vivo-studies
#10
Cing-Syuan Lei, Yu-Chen Hou, Man-Hui Pai, Ming-Tsan Lin, Sung-Ling Yeh
Chemotherapy is essential to most patients with gastric cancer and the anticancer drug, irinotecan (CPT-11), and its metabolite, SN-38, an inhibitor of DNA topoisomerase I, are first-line chemotherapies for gastric cancer. Quercetin, a flavonoid that is widely found in various vegetables and fruits, has the ability to potentiate the efficacy of anticancer drugs. The purpose of this study was to investigate the therapeutic effect of quercetin combined with irinotecan/SN-38 in the AGS human gastric cancer cell line in vitro and in vivo...
September 28, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29124875/emerging-functions-of-the-egfr-in-cancer
#11
REVIEW
Sara Sigismund, Daniele Avanzato, Letizia Lanzetti
The physiological function of the Epidermal Growth Factor Receptor (EGFR) is to regulate epithelial tissue development and homeostasis. In pathological settings, mostly in lung and breast cancer and in glioblastoma, the EGFR is a driver of tumorigenesis. Inappropriate activation of the EGFR in cancer mainly results from amplification and point mutations at the genomic locus, but transcriptional upregulation or ligand overproduction due to autocrine/paracrine mechanisms have also been described. Moreover, the EGFR is increasingly recognized as a biomarker of resistance in tumors, since its amplification or secondary mutations have been found to arise under drug pressure...
November 10, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/29118744/two-lactobacillus-species-inhibit-the-growth-and-%C3%AE-toxin-production-of-clostridium-perfringens-and-induced-proinflammatory-factors-in-chicken-intestinal-epithelial-cells-in-vitro
#12
Shuangshuang Guo, Dan Liu, Beibei Zhang, Zhui Li, Yehan Li, Binying Ding, Yuming Guo
Clostridium perfringens is the causative pathogen of avian necrotic enteritis. Lactobacillus spp. are well-characterized probiotics with anti-microbial and immune-modulatory activities. In the present study, we investigated the effects of L. acidophilus and L. fermentum on the growth, α-toxin production and inflammatory responses of C. perfringens. In in vitro culture experiments, both lactobacilli inhibited the growth of C. perfringens (P < 0.01), accompanied with a decrease in pH (P < 0.01). Supernatants from lactobacilli cultures also suppressed the growth of C...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29118542/the-role-of-the-endothelin-axis-in-promoting-epithelial-to-mesenchymal-transition-and-lymph-node-metastasis-in-prostate-adenocarcinoma
#13
Sophia Papanikolaou, Vasiliki Bravou, Helen Papadaki, Kostis Gyftopoulos
Introduction: Aberrant activation of endothelin (ET) axis has been identified as a key player in tumor growth and metastasis in several tumor types. However, little is known about the possible interaction of the ET with epithelial to mesenchymal transition (EMT), a process that transforms tumor cells in a motile, resistant to apoptosis phenotype prone to invasion and metastasis. The aim of this study was to investigate the activation of the ET axis in prostate adenocarcinoma and examine possible associations with EMT markers, lymph node (LN) metastasis, and other clinicopathological parameters...
October 2017: Urology Annals
https://www.readbyqxmd.com/read/29118048/rank-rewires-energy-homeostasis-in-lung-cancer-cells-and-drives-primary-lung-cancer
#14
Shuan Rao, Verena Sigl, Reiner Alois Wimmer, Maria Novatchkova, Alexander Jais, Gabriel Wagner, Stephan Handschuh, Iris Uribesalgo, Astrid Hagelkruys, Ivona Kozieradzki, Luigi Tortola, Roberto Nitsch, Shane J Cronin, Michael Orthofer, Daniel Branstetter, Jude Canon, John Rossi, Manolo D'Arcangelo, Johan Botling, Patrick Micke, Linnea La Fleur, Karolina Edlund, Michael Bergqvist, Simon Ekman, Thomas Lendl, Helmut Popper, Hiroshi Takayanagi, Lukas Kenner, Fred R Hirsch, William Dougall, Josef M Penninger
Lung cancer is the leading cause of cancer deaths. Besides smoking, epidemiological studies have linked female sex hormones to lung cancer in women; however, the underlying mechanisms remain unclear. Here we report that the receptor activator of nuclear factor-kB (RANK), the key regulator of osteoclastogenesis, is frequently expressed in primary lung tumors, an active RANK pathway correlates with decreased survival, and pharmacologic RANK inhibition reduces tumor growth in patient-derived lung cancer xenografts...
November 8, 2017: Genes & Development
https://www.readbyqxmd.com/read/29115931/guanylate-binding-protein-1-is-a-potential-new-therapeutic-target-for-triple-negative-breast-cancer
#15
Melissa Quintero, Douglas Adamoski, Larissa Menezes Dos Reis, Carolline Fernanda Rodrigues Ascenção, Krishina Ratna Sousa de Oliveira, Kaliandra de Almeida Gonçalves, Marília Meira Dias, Marcelo Falsarella Carazzolle, Sandra Martha Gomes Dias
BACKGROUND: Triple-negative breast cancer (TNBC) is characterized by a lack of estrogen and progesterone receptor expression (ESR and PGR, respectively) and an absence of human epithelial growth factor receptor (ERBB2) amplification. Approximately 15-20% of breast malignancies are TNBC. Patients with TNBC often have an unfavorable prognosis. In addition, TNBC represents an important clinical challenge since it does not respond to hormone therapy. METHODS: In this work, we integrated high-throughput mRNA sequencing (RNA-Seq) data from normal and tumor tissues (obtained from The Cancer Genome Atlas, TCGA) and cell lines obtained through in-house sequencing or available from the Gene Expression Omnibus (GEO) to generate a unified list of differentially expressed (DE) genes...
November 7, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29115556/role-of-c-met-in-the-progression-of-human-oral-squamous-cell-carcinoma-and-its-potential-as-a-therapeutic-target
#16
Zujun Sun, Qi Liu, Dongxia Ye, Kaichuang Ye, Zhenhua Yang, Dong Li
Mesenchymal-epithelial transition factor (c-Met) is the only high affinity receptor for hepatocyte growth factor (HGF), and is frequently activated in many human cancers. However, little is known about the role of the HGF/c-Met signaling pathway in the progression of human oral squamous cell carcinoma (OSCC). This study evaluated the role of the HGF/c-Met signaling pathway in the progression of human OSCC. We found that the expression of c-Met was significantly increased in human OSCC tissues than in normal mucosa adjacent to the tumor (P<0...
November 2, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29115426/recombinant-truncated-tgf%C3%A2-%C3%AE-receptor-ii-attenuates-carbon-tetrachloride%C3%A2-induced-epithelial%C3%A2-mesenchymal-transition-and-liver-fibrosis-in-rats
#17
Luxin Li, Hongzhi Li, Zhen Zhang, Junya Zheng, Yongping Shi, Jieting Liu, Yanan Cao, Xiaohuan Yuan, Yanhui Chu
Liver fibrosis is a pathological process of chronic liver diseases. In particular, epithelial‑mesenchymal transition (EMT) is a major source of myofibroblast structure in liver fibrosis. The present study investigated the effects of recombinant truncated transforming growth factor‑ß receptor II (rtTGFβRII) on EMT and liver fibrosis in a carbon tetrachloride (CCl4)‑induced rat model. A total of 24 rats were randomly separated into three groups: Normal control (NC), model (CCl4) and treatment (CCl4 + rtTGFβRII) groups...
October 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29113242/eupatolide-inhibits-the-tgf-%C3%AE-1-induced-migration-of-breast-cancer-cells-via-downregulation-of-smad3-phosphorylation-and-transcriptional-repression-of-alk5
#18
Ariundavaa Boldbaatar, Sunyi Lee, Sora Han, Ae Lee Jeong, Hye In Ka, Sumiyasuren Buyanravjikh, Jeong Hyung Lee, Jong-Seok Lim, Myung Sok Lee, Young Yang
The epithelial-mesenchymal transition (EMT) is a hallmark of cancer metastasis, and the associated molecular signaling pathways are regarded as therapeutic targets for cancer treatment. Thus, suppressing EMT with a natural chemical compound may be of therapeutic benefit. Eupatolide is a natural chemical compound extracted from the medicinal plant Inula britannica, which is used in Eastern Asia to treat bronchitis, disorders of the digestive system and inflammation. Besides the anti-inflammatory function of eupatolide, the present study found that eupatolide suppressed the migration and invasion of breast cancer cells, which was associated with the downregulation of vimentin in MDA-MB-231 cells and the upregulation of E-cadherin in MCF-7 cells...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29110101/histological-transformation-after-acquired-resistance-to-epidermal-growth-factor-tyrosine-kinase-inhibitors
#19
REVIEW
Yi Shao, Dian-Sheng Zhong
Non-small-cell lung cancer patients with sensitive epidermal growth factor receptor mutations generally respond well to tyrosine kinase inhibitors (TKIs). However, acquired resistance will eventually develop place after 8-16 months. Several mechanisms contribute to the resistance including T790M mutation, c-Met amplification, epithelial mesenchymal transformation and PIK3CA mutation; however, histological transformation is a rare mechanism. The patterns and mechanisms underlying histological transformation need to be explored...
November 7, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29109091/transcriptomic-profiling-of-mda-mb-231-cells-exposed-to-boswellia-serrata-and-3-o-acetyl-b-boswellic-acid-er-upr-mediated-programmed-cell-death
#20
REVIEW
Elizabeth A Mazzio, Charles A Lewis, Karam F A Soliman
BACKGROUND/AIM: Triple-negative breast cancer (TNBC) is characterized by the absence of hormone receptors (estrogen, progesterone and human epidermal growth factor receptor-2) and a relatively poor prognosis due to inefficacy of hormone receptor-based chemotherapies. It is imperative that we continue to explore natural products with potential to impede growth and metastasis of TNBC. In this study, we screened over 1,000 natural products for capacity to induce cell death in TNBC (MDA-MB -231) cells...
November 2017: Cancer Genomics & Proteomics
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