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https://www.readbyqxmd.com/read/29099748/recent-advances-in-comprehending-the-signaling-pathways-involved-in-the-progression-of-breast-cancer
#1
REVIEW
Andrea Nicolini, Paola Ferrari, Lucrezia Diodati, Angelo Carpi
This review describes recent advances in the comprehension of signaling pathways involved in breast cancer progression. Calcium sensing receptor (CaSR), caveolae signaling, signaling referred to hypoxia-inducing factors and disturbances in the apoptotic machinery are related to more general biological mechanisms and are considered first. The others refer to signaling pathways of more specific biological mechanisms, namely the heparin/heparin-sulfate interactome, over-expression of miRNA-378a-5p, restriction of luminal and basal epithelial cells, fatty-acid synthesis, molecular pathways related to epithelial to mesenchimal transition (EMT), HER-2/neu gene amplification and protein expression, and the expression of other members of the epithelial growth factor receptor family...
November 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29043713/bioorthogonal-chemical-imaging-of-metabolic-changes-during-epithelial-mesenchymal-transition-of-cancer-cells-by-stimulated-raman-scattering-microscopy
#2
Luyuan Zhang, Wei Min
Study of metabolic changes during epithelial-mesenchymal transition (EMT) of cancer cells is important for basic understanding and therapeutic management of cancer progression. We here used metabolic labeling and stimulated Raman scattering (SRS) microscopy, a strategy of bioorthogonal chemical imaging, to directly visualize changes in anabolic metabolism during cancer EMT at a single-cell level. MCF-7 breast cancer cell is employed as a model system. Four types of metabolites (amino acids, glucose, fatty acids, and choline) are labeled with either deuterium or alkyne (C≡C) tag...
October 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29039048/sclerosing-and-obstructive-cholangiopathy-in-biliary-atresia-mechanisms-and-association-with-biliary-innate-immunity
#3
REVIEW
Kenichi Harada
Biliary atresia (BA) is histologically characterized by a progressive, sclerosing cholangitis and the obstruction of extrahepatic bile ducts. In terms of the etiology and pathogenesis of BA, several viral infections consisting of dsRNA, including Reoviridae, have been implicated. Human biliary epithelial cells (BECs) possess an innate immune system consisting of Toll-like receptors (TLRs). BECs have negative regulatory mechanisms of TLR tolerance to avoid an excessive inflammatory response to lipopolysaccharide (LPS), a TLR4 ligand; however, they lack the tolerance to poly(I:C) (a synthetic analog of viral dsRNA), a TLR3 ligand...
December 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/29026462/murine-hepatocellular-carcinoma-derived-stem-cells-reveal-epithelial-to-mesenchymal-plasticity
#4
Aparna Jayachandran, Ritu Shrestha, Bijay Dhungel, I-Tao Huang, Marianna Yumi Kawashima Vasconcelos, Brian J Morrison, Charmaine A Ramlogan-Steel, Jason C Steel
AIM: To establish a model to enrich and characterize stem-like cells from murine normal liver and hepatocellular carcinoma (HCC) cell lines and to further investigate stem-like cell association with epithelial-to-mesenchymal transition (EMT). METHODS: In this study, we utilized a stem cell conditioned serum-free medium to enrich stem-like cells from mouse HCC and normal liver cell lines, Hepa 1-6 and AML12, respectively. We isolated the 3-dimensional spheres and assessed their stemness characteristics by evaluating the RNA levels of stemness genes and a cell surface stem cell marker by quantitative reverse transcriptase-PCR (qRT-PCR)...
September 26, 2017: World Journal of Stem Cells
https://www.readbyqxmd.com/read/28983614/interaction-network-of-coexpressed-mrna-mirna-and-lncrna-activated-by-tgf%C3%A2-%C3%AE-1-regulates-emt-in-human-pulmonary-epithelial-cell
#5
Huizhu Liu, Xueying Zhao, Jing Xiang, Jie Zhang, Chao Meng, Jinjin Zhang, Minge Li, Xiaodong Song, Changjun Lv
Noncoding RNAs (ncRNAs), such as microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), play increasingly important roles in pathological processes involved in disease development. However, whether mRNAs interact with miRNAs and lncRNAs to form an interacting regulatory network in diseases remains unknown. In this study, the interaction of coexpressed mRNAs, miRNAs and lncRNAs during tumor growth factor‑β1‑activated (TGF‑β1) epithelial‑mesenchymal transition (EMT) was systematically analyzed in human alveolar epithelial cells...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28976208/pomegranate-extract-alters-breast-cancer-stem-cell-properties-in-association-with-inhibition-of-epithelial-to-mesenchymal-transition
#6
Sameera Nallanthighal, Kristine M Elmaliki, Ramune Reliene
Cancer stem cells (CSCs) have become an important target population in cancer therapy and prevention due to their ability to self-renew, initiate tumors, and resist therapy. We examined whether pomegranate extract (PE) alters characteristics of breast CSCs. Ability to grow as mammospheres is a hallmark of breast CSCs. PE inhibited mammosphere formation in two different cell lines, neoplastic mammary epithelial HMLER and breast cancer Hs578T. In addition, mammosphere-derived cells from PE treatment groups showed reduced mammosphere formation for at least two serial passages...
October 4, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28938653/overexpression-of-emt-inducing-transcription-factors-as-a-potential-poor-prognostic-factor-for-hepatocellular-carcinoma-in-asian-populations-a-meta-analysis
#7
Tao Wan, Tianwei Zhang, Xiaoying Si, Yanming Zhou
BACKGROUND AND OBJECTIVES: The clinical relevance of epithelial to mesenchymal transition (EMT) in hepatocellular carcinoma (HCC) progression has been highlighted during the last decade. The zinc finger E-box binding homeobox (ZEB) family, the zinc-finger transcriptional repressor (SNAI) family, and the basic helix-loop-helix transcription factor (Twist) family, known as the prominent EMT-inducing transcription factors (EMT-TFs), played a crucial role in the process of EMT. Here, this meta-analysis aimed to evaluate the prognostic value of EMT-TFs high expression in patients with HCC after hepatectomy...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28855958/proteins-associated-with-the-doubling-time-of-the-nci-60-cancer-cell-lines
#8
Michael Polymenis
The varied nature of human cancers is recapitulated, at least to some extent, in the diverse NCI-60 panel of human cancer cell lines. Here, I used a basic, continuous variable of proliferating cells, their doubling time, to stratify the proteome across the NCI-60 cell lines. Among >7000 proteins quantified in the NCI-60 panel previously, the levels of 84 proteins increase in cells that proliferate slowly. This set overlapped with the hallmark molecular signature "epithelial-mesenchymal transition (EMT)" (p value = 1...
2017: Cell Division
https://www.readbyqxmd.com/read/28797712/estrogen-receptor-beta-as-epigenetic-mediator-of-mir-10b-and-mir-145-in-mammary-cancer
#9
Zoi Piperigkou, Marco Franchi, Martin Götte, Nikos K Karamanos
Even though the role of estrogen receptor alpha (ERα) in the modulation of breast cancer cells' behavior is thoroughly studied, the biological functions of its isoform, ERβ, are less elucidated. The suppression of ERβ in the aggressive ERα-negative MDA-MB-231 breast cancer cells resulted in the inhibition of epithelial to mesenchymal transition (EMT) and major changes in the basic functional properties and expression levels of certain matrix components of breast cancer cells. This arrest in metastatic potential of breast cancer cells suggests the contribution of ERβ in the induction of a more aggressive phenotype in MDA-MB-231 breast cancer cells...
August 8, 2017: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/28746919/c-ebp%C3%AE-suppresses-lung-adenocarcinoma-cell-invasion-and-migration-by-inhibiting-%C3%AE-catenin
#10
Jinchang Lu, Chunling Du, Junxia Yao, Bo Wu, Yanhong Duan, Lei Zhou, Donghui Xu, Feng Zhou, Liang Gu, Hong Zhou, Yingxin Sun
BACKGROUND/AIMS: The transcription factor CCAAT/enhancer-binding protein α (C/EBPα) is a basic leucine zipper transcription factor that plays essential roles in tumor progression. Although decreased or absent C/EBPα expression in many cancers suggests a possible role for C/EBPα as a tumor suppressor, the functions of C/EBPα in lung adenocarcinoma remain unclear. METHODS: Here, C/EBPα expression levels in 26 lung adenocarcinoma and para-carcinoma tissue samples were detected by qRT-PCR and immunohistochemistry...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28739720/inhibition-of-bevacizumab-induced-epithelial-mesenchymal-transition-by-batf2-overexpression-involves-the-suppression-of-wnt-%C3%AE-catenin-signaling-in-glioblastoma-cells
#11
Wenqiu Huang, Chenguang Zhang, Mengtian Cui, Jing Niu, Wei Ding
BACKGROUND/AIM: Bevacizumab (BV) has been used for the treatment of recurrent glioblastoma. However, it also induces epithelial-mesenchymal transition (EMT) in glioblastoma cells, which compromises its efficacy. BATF2 (basic leucine zipper ATF-like transcription factor 2), a multi-target transcriptional repressor, has been found to suppress cancer development partly through inhibition of Wnt/β-catenin singling. The roles of BATF2 and Wnt/β-catenin signaling in BV-induced EMT in glioblastoma cells were investigated in this study...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28622155/triad-ix-can-a-patient-testimonial-safely-help-ensure-prehospital-appropriate-critical-versus-end-of-life-care
#12
Ferdinando Mirarchi, Christopher Cammarata, Timothy E Cooney, Kristin Juhasz, Stanley A Terman
OBJECTIVE: The present study sought to assess the clarity of Physician Orders for Life-Sustaining Treatment (POLST) or Living Will (LW) documents alone or in combination with a video message/testimonial (VM). METHODS: Emergency medical services (EMS) personnel responded to survey questions about the meaning of stand-alone POLST and LW documents and those used in conjunction with emergent care scenarios. Personnel were randomized to receive documents only or documents with VM...
June 16, 2017: Journal of Patient Safety
https://www.readbyqxmd.com/read/28621681/overexpression-of-emt-inducing-transcription-factors-as-a-potential-poor-prognostic-factor-for-hepatocellular-carcinoma-in-asian-populations-a-meta-analysis
#13
Tao Wan, Tianwei Zhang, Xiaoying Si, Yanming Zhou
BACKGROUND AND OBJECTIVES: The clinical relevance of epithelial to mesenchymal transition (EMT) in hepatocellular carcinoma (HCC) progression has been highlighted during the last decade. The zinc finger E-box binding homeobox (ZEB) family, the zinc-finger transcriptional repressor (SNAI) family, and the basic helix-loop-helix transcription factor (Twist) family, known as the prominent EMT-inducing transcription factors (EMT-TFs), played a crucial role in the process of EMT. Here, this meta-analysis aimed to evaluate the prognostic value of EMT-TFs high expression in patients with HCC after hepatectomy...
June 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28580167/sequential-emt-met-induces-neuronal-conversion-through-sox2
#14
Songwei He, Jinlong Chen, Yixin Zhang, Mengdan Zhang, Xiao Yang, Yuan Li, Hao Sun, Lilong Lin, Ke Fan, Lining Liang, Chengqian Feng, Fuhui Wang, Xiao Zhang, Yiping Guo, Duanqing Pei, Hui Zheng
Direct neuronal conversion can be achieved with combinations of small-molecule compounds and growth factors. Here, by studying the first or induction phase of the neuronal conversion induced by defined 5C medium, we show that the Sox2-mediated switch from early epithelial-mesenchymal transition (EMT) to late mesenchymal-epithelial transition (MET) within a high proliferation context is essential and sufficient for the conversion from mouse embryonic fibroblasts (MEFs) to TuJ(+) cells. At the early stage, insulin and basic fibroblast growth factor (bFGF)-induced cell proliferation, early EMT, the up-regulation of Stat3 and Sox2, and the subsequent activation of neuron projection...
2017: Cell Discovery
https://www.readbyqxmd.com/read/28498365/inhibition-of-twist1-mediated-invasion-by-chk2-promotes-premature-senescence-in-p53-defective-cancer-cells
#15
Debasis Nayak, Anmol Kumar, Souneek Chakraborty, Reyaz Ur Rasool, Hina Amin, Archana Katoch, Veena Gopinath, Vidushi Mahajan, Mahesh K Zilla, Bilal Rah, Sumit G Gandhi, Asif Ali, Lekha Dinesh Kumar, Anindya Goswami
Twist1, a basic helix-loop-helix transcription factor is implicated as a key mediator of epithelial-mesenchymal transition (EMT) and metastatic dissemination in p53-deficient cancer cells. On the other hand, checkpoint kinase 2 (Chk2), a major cell cycle regulatory protein provides a barrier to tumorigenesis due to DNA damage response by preserving genomic stability of the cells. Here we demonstrate that Chk2 induction proficiently abrogates invasion, cell scattering and invadopodia formation ability of p53-mutated invasive cells by suppressing Twist1, indicating Chk2 confers vital role in metastasis prevention...
July 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28424890/left-atrial-electromechanical-conduction-time-predicts-atrial-fibrillation-in-patients-with-mitral-stenosis-a-5-year-follow-up-speckle-tracking-echocardiography-study
#16
Ozkan Candan, Cetin Gecmen, Arzu Kalayci, Cem Dogan, Emrah Bayam, Mehmet Ozkan
Prolonged left atrial electromechanical conduction time is related with atrial electrical remodeling, and is predictive of the development of atrial fibrillation. The aim of our study was to examine whether left atrial electromechanical conduction time (EMT) and left atrial strain as measured by speckle tracking echocardiography (STE) are predictors for the development of atrial fibrillation (AF) in patients with mitral stenosis (MS) at 5-year follow-up. A total of 81 patients (61% females; mean age 38.1 ± 12...
October 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28341659/chronic-microaspiration-of-bile-acids-induces-lung-fibrosis-through-multiple-mechanisms-in-rats
#17
Bi Chen, Wen Jie You, Xue Qing Liu, Shan Xue, Hui Qin, Han Dong Jiang
Gastroesophageal reflux (GER) and microaspiration of duodenogastric refluxate have been recognized as a risk factor for pulmonary fibrosis. Recent evidence suggests that bile acid microaspiration may contribute to the development of lung fibrosis. However, the molecular evidence is scarce and the underlying mechanisms remain to be elucidated. We have recently demonstrated that bile acids induce activation of alveolar epithelial cells (AECs) and lung fibroblasts in vitro In the present study, a rat model of bile acid microaspiration was established by weekly intratracheal instillation of three major bile acids including chenodeoxycholic acid (CDCA), deoxycholic acid (DCA), and lithocholic acid (LCA)...
May 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28339320/basic-life-support-access-to-injectable-epinephrine-across-the-united-states
#18
Ian D Brasted, Michael W Dailey
BACKGROUND:  Aggressive epinephrine administration has growing support in the treatment of anaphylaxis, a life-threatening allergic reaction. Emergency Medical Services (EMS) providers are frequently in a position to provide the first care to someone experiencing an anaphylactic reaction. Intramuscular injection of epinephrine is the definitive pharmacologic treatment for many associated symptoms. While easy to use, epinephrine autoinjectors (EAI) are prohibitively expensive, having increased in price ten-fold in ten years...
July 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28291494/military-emergency-medical-service-system-assessment-application-of-the-national-park-service-needs-assessment-and-program-audit-to-objectively-evaluate-the-military-ems-system-of-okinawa-japan
#19
Elliot M Ross, Stephen A Harper, Cord Cunningham, Benjamin D Walrath, Gerard DeMers, Chetan U Kharod
INTRODUCTION: As part of a Military Emergency Medical Services (EMS) system process improvement initiative, the authors sought to objectively evaluate the U.S. military EMS system for the island of Okinawa. They applied a program evaluation tool currently utilized by the U.S. National Park Service (NPS). METHODS: A comprehensive needs assessment was conducted to evaluate the current Military EMS system in Okinawa, Japan. The NPS EMS Program Audit Worksheet was used to get an overall "score" of our assessment...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28276310/basic-transcription-factor-3-is-required-for-proliferation-and-epithelial-mesenchymal-transition-via-regulation-of-foxm1-and-jak2-stat3-signaling-in-gastric-cancer
#20
De-Zhong Zhang, Bing-He Chen, Lan-Fang Zhang, Ming-Kun Cheng, Xiang-Jie Fang, Xin-Jun Wu
Gastric cancer (GC) is the most common epithelial malignancy worldwide. Basic transcription factor 3 (BTF3) plays a crucial role in the regulation of various biological processes. We designed experiments to investigate the molecular mechanism underlying the role of BTF3 in GC cell proliferation and metastasis. We confirmed that BTF3 expression was decreased in GC tissues and several GC cell lines. Lentivirus-mediated downregualtion of BTF3 reduced cell proliferation, induced S and G2/M cell cycle arrest, and increased apoptosis...
March 8, 2017: Oncology Research
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