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https://www.readbyqxmd.com/read/28441714/long-non-coding-rna-hotair-functions-as-mirna-sponge-to-promote-the-epithelial-to-mesenchymal-transition-in-esophageal-cancer
#1
Feng Xu, Jing Zhang
BACKGROUND: Accumulating evidence indicates dysregulated expression of the long non-coding RNA HOTAIR (lncRNA-HOTAIR) may play a significant role in tumor progression. LncRNA-HOTAIR promotes several processes in esophageal cancer (EC), including cell growth, differentiation, invasion and migration. However, the mechanisms by which lncRNA-HOTAIR promotes invasion and migration EC remain unclear. METHODS: LncRNA-HOTAIR and miR-148a expression were quantified in 40 paired human EC and tumor-adjacent tissues and EC cell lines by quantitative real-time PCR (qRT-PCR)...
April 21, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28441064/bacillus-calmette-guerin-alleviates-airway-inflammation-and-remodeling-by-preventing-tgf-%C3%AE-1-induced-epithelial-mesenchymal-transition
#2
Xinrui Tian, Xinli Tian, Rujie Huo, Qin Chang, Guoping Zheng, Yan Du, Yan Chen, Bo Niu
Bacillus Calmette-Guerin (BCG) is a potent agent for the prevention of tuberculosis. Current studies have regarded BCG as an immunomodulator. However, there is little information on whether it can be used to inhibit airway inflammation and airway remodeling caused by asthma. Therefore, in this study, we investigate the role of epithelial-mesenchymal transition (EMT) in airway inflammation and airway remodeling as well as the possible therapeutic mechanism of BCG for the treatment of asthma. Wistar rats were sensitized and challenged by ovalbumin for 2 weeks or 8 weeks...
April 25, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28440499/effects-of-tanshinone-iia-on-the-regulation-of-renal-proximal-tubular-fibrosis
#3
Luoyuan Cao, Baoying Huang, Xianguo Fu, Jing Yang, Yinghua Lin, Feng Lin
The development of diabetes mellitus, along with its complications, is a chronic inflammatory response process. Chronic kidney diseases are characterized by renal fibrosis, and fibrosis is an important pathway for end‑stage renal failure. According to previous studies, high glucose (HG) has been demonstrated to be the most important fibrogenesis‑inducing agent. Tanshinone IIA is one of the main components isolated from Danshen (Salvia miltiorrhiza). Although tanshinone IIA has been widely used for the treatment of cardiovascular diseases, the possible role of tanshinone IIA in fibrosis regulation remains to be elucidated and requires investigation...
April 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440489/genome-wide-dna-methylation-sequencing-reveals-mir-663a-is-a-novel-epimutation-candidate-in-cimp-high-endometrial-cancer
#4
Megumi Yanokura, Kouji Banno, Masataka Adachi, Daisuke Aoki, Kuniya Abe
Aberrant DNA methylation is widely observed in many cancers. Concurrent DNA methylation of multiple genes occurs in endometrial cancer and is referred to as the CpG island methylator phenotype (CIMP). However, the features and causes of CIMP-positive endometrial cancer are not well understood. To investigate DNA methylation features characteristic to CIMP-positive endometrial cancer, we first classified samples from 25 patients with endometrial cancer based on the methylation status of three genes, i.e. MLH1, CDH1 (E-cadherin) and APC: CIMP-high (CIMP-H, 2/25, 8...
April 19, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28440402/erk5-regulates-tobacco-smoke%C3%A2-induced-urocystic-epithelial%C3%A2-mesenchymal-transition-in-balb-c-mice
#5
Jie Min, Hao Geng, Zhiqi Liu, Zhaofeng Liang, Zhiqiang Zhang, Dongdong Xie, Yi Wang, Tao Zhang, Dexin Yu, Caiyun Zhong
Tobacco smoke (TS) is an important risk factor of bladder cancer. Epithelial‑mesenchymal transition (EMT) is involved in the initiation and development of cancer. The role of extracellular signal‑regulated kinase (ERK) 5 in regulating TS‑induced EMT remains to be elucidated. The aim of the present study was to investigate the regulatory role of ERK5 in TS‑triggered EMT in the bladder of mice. BALB/c mice were used for an in vivo TS exposure model. Mice were treated for 6 h a day for 12 weeks. The results demonstrated that mice exposed to TS had decreased mRNA and protein expression levels of the epithelial markers E‑cadherin and zonula occludens‑1, whereas expression levels of the mesenchymal markers Vimentin and N‑cadherin were increased...
April 11, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28439082/expression-of-nestin-associates-with-brca1-mutations-a-basal-like-phenotype-and-aggressive-breast-cancer
#6
Kristi Krüger, Elisabeth Wik, Gøril Knutsvik, Hawa Nalwoga, Tor A Klingen, Jarle B Arnes, Ying Chen, Monica Mannelqvist, Konstantina Dimitrakopoulou, Ingunn M Stefansson, Even Birkeland, Turid Aas, Nicholas P Tobin, Inge Jonassen, Jonas Bergh, William D Foulkes, Lars A Akslen
We here examined whether Nestin, by protein and mRNA levels, could be a predictor of BRCA1 related breast cancer, a basal-like phenotype, and aggressive tumours. Immunohistochemical staining of Nestin was done in independent breast cancer hospital cohorts (Series I-V, total 1257 cases). Also, TCGA proteomic data (n = 103), mRNA microarray data from TCGA (n = 520), METABRIC (n = 1992), and 6 open access breast cancer datasets (n = 1908) were analysed. Patients with Nestin protein expression in tumour cells more often had BRCA1 germline mutations (OR 8...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28439067/perfluorooctanesulfonate-pfos-induced-sertoli-cell-injury-through-a-disruption-of-f-actin-and-microtubule-organization-is-mediated-by-akt1-2
#7
Ying Gao, Haiqi Chen, Xiang Xiao, Wing-Yee Lui, Will M Lee, Dolores D Mruk, C Yan Cheng
PFOS (perfluorooctanesulfonate, or perfluorooctane sulfonic acid) is an anthropogenic fluorosurfactant widely used in consumer products. While its use in Europe, Canada and the U.S. has been banned due to its human toxicity, it continues to be used in China and other developing countries as a global pollutant. Herein, using an in vitro model of Sertoli cell blood-testis barrier (BTB), PFOS was found to induce Sertoli cell injury by perturbing actin cytoskeleton through changes in the spatial expression of actin regulatory proteins...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28439013/biliary-epithelial-injury-induced-regenerative-response-by-il-33-promotes-cholangiocarcinogenesis-from-peribiliary-glands
#8
Hayato Nakagawa, Nobumi Suzuki, Yoshihiro Hirata, Yohko Hikiba, Yoku Hayakawa, Hiroto Kinoshita, Sozaburo Ihara, Koji Uchino, Yuji Nishikawa, Hideaki Ijichi, Motoyuki Otsuka, Junichi Arita, Yoshihiro Sakamoto, Kiyoshi Hasegawa, Norihiro Kokudo, Keisuke Tateishi, Kazuhiko Koike
The carcinogenic mechanism of extrahepatic cholangiocarcinoma (ECC) is unclear, due at least in part to the lack of an appropriate mouse model. Because human studies have reported frequent genetic alterations in the Ras- and TGFβ/SMAD-signaling pathways in ECC, mice with tamoxifen-inducible, duct-cell-specific Kras activation and a TGFβ receptor type 2 (TGFβR2) deletion were first generated by crossing LSL-Kras(G12D) , Tgfbr2(flox/flox) , and K19(CreERT) mice (KT-K19(CreERT) ). However, KT-K19(CreERT) mice showed only mild hyperplasia of biliary epithelial cells (BECs) in the extrahepatic bile duct (EHBD) and died within 7 wk, probably a result of lung adenocarcinomas...
April 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28439009/estrogen-receptor-%C3%AE-a-regulator-of-androgen-receptor-signaling-in-the-mouse-ventral-prostate
#9
Wan-Fu Wu, Laure Maneix, Jose Insunza, Ivan Nalvarte, Per Antonson, Juha Kere, Nancy Yiu-Lin Yu, Virpi Tohonen, Shintaro Katayama, Elisabet Einarsdottir, Kaarel Krjutskov, Yu-Bing Dai, Bo Huang, Wen Su, Margaret Warner, Jan-Åke Gustafsson
As estrogen receptor β(-/-) (ERβ(-/-)) mice age, the ventral prostate (VP) develops increased numbers of hyperplastic, fibroplastic lesions and inflammatory cells. To identify genes involved in these changes, we used RNA sequencing and immunohistochemistry to compare gene expression profiles in the VP of young (2-mo-old) and aging (18-mo-old) ERβ(-/-) mice and their WT littermates. We also treated young and old WT mice with an ERβ-selective agonist and evaluated protein expression. The most significant findings were that ERβ down-regulates androgen receptor (AR) signaling and up-regulates the tumor suppressor phosphatase and tensin homolog (PTEN)...
April 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28438789/desmoglein-2-modulates-extracellular-vesicle-release-from-squamous-cell-carcinoma-keratinocytes
#10
Andrew M Overmiller, Jennifer A Pierluissi, Peter J Wermuth, Sami Sauma, Ubaldo Martinez-Outschoorn, Madalina Tuluc, Adam Luginbuhl, Joseph Curry, Larry A Harshyne, James K Wahl, Andrew P South, Mỹ G Mahoney
Extracellular vesicles (EVs) are nanoscale membrane-derived vesicles that serve as intercellular messengers carrying lipids, proteins, and genetic material. Substantial evidence has shown that cancer-derived EVs, secreted by tumor cells into the blood and other bodily fluids, play a critical role in modulating the tumor microenvironment and affecting the pathogenesis of cancer. Here we demonstrate for the first time that squamous cell carcinoma (SCC) EVs were enriched with the C-terminal fragment of desmoglein 2 (Dsg2), a desmosomal cadherin often overexpressed in malignancies...
April 24, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28438134/poly-i-c-induces-collective-migration-of-hacat-keratinocytes-via-il-8
#11
Kazuhide Takada, Shihoko Komine-Aizawa, Naoko Hirohata, Quang Duy Trinh, Atsuyoshi Nishina, Hirokazu Kimura, Satoshi Hayakawa
BACKGROUND: Delayed wound healing reduces the quality of life (QOL) of patients. Thus, understanding the mechanism of wound healing is indispensable for better management. However, the role of innate immunity in wound healing is thus far unknown. Recently the involvement of TLR3 in wound healing has been evaluated. The systemic administration of polyriboinosinic-polyribocytidylic acid (poly I:C ; a substitute for viral dsRNA and a ligand of toll-like receptor 3), enhances wound healing in vivo...
April 24, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28438065/reduced-expression-of-eukaryotic-translation-initiation-factor-3-subunit-e-and-its-possible-involvement-in-the-epithelial-mesenchymal-transition-in-endometriosis
#12
Xianjun Cai, Minhong Shen, Xishi Liu, Sun-Wei Guo
Epithelial-mesenchymal transition (EMT) is now well documented to be involved in the development of endometriosis through the promotion of invasion and fibrogenesis. To date, several factors have been reported to be involved in EMT in endometriosis. The eukaryotic translation initiation factor 3 subunit e (eIF3e) protein is a component of the multisubunit eIF3 complex essential for cap-dependent translation initiation. The aim of this study was to investigate whether eIF3e is involved in EMT in endometriosis...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28437578/klrg1-impairs-treg-competitive-fitness-in-the-gut
#13
Holger Meinicke, Anna Bremser, Maria Brack, Klaudia Schrenk, Hanspeter Pircher, Ana Izcue
Immune homeostasis requires the tight, tissue-specific control of the different CD4(+) Foxp3(+) regulatory T cells (Treg) populations. The cadherin-binding inhibitory receptor KLRG1 is expressed by a subpopulation of Treg with GATA3(+) effector phenotype. Although such Treg are important for the immune balance, especially in the gut, the role of KLRG1 in Treg has not been assessed. Using KLRG1 KO mice, we found that KLRG1 deficiency does not affect Treg frequencies in spleen, mesenteric lymph nodes or intestine, or frequencies of GATA3(+) Treg in the gut...
April 24, 2017: Immunology
https://www.readbyqxmd.com/read/28437001/tumor-associated-changes-in-intestinal-epithelial-cells-cause-local-accumulation-of-klrg1-gata3-regulatory-t-cells-in-mice
#14
Holger Meinicke, Anna Bremser, Maria Brack, Paulina Akeus, Claire Pearson, Samuel Bullers, Katrin Hoffmeyer, Marc P Stemmler, Marianne Quiding-Järbrink, Ana Izcue
CD4(+) Foxp3(+) regulatory T cells (Treg) include differentiated populations of effector Treg characterized by the expression of specific transcription factors. Tumors, including intestinal malignancies, often present with local accumulation of Treg that can prevent tumor clearance, but how tumor progression leads to Treg accumulation is incompletely understood. Here using genetically modified mouse models we show that ablation of E-cadherin, a process associated with epithelial to mesenchymal transition (EMT) and tumor progression, promotes the accumulation of intestinal Treg by the specific accumulation of the KLRG1(+) GATA3(+) Treg subset...
April 24, 2017: Immunology
https://www.readbyqxmd.com/read/28435999/neonatal-propofol-anesthesia-changes-expression-of-synaptic-plasticity-proteins-and-increases-stereotypic-and-anxyolitic-behavior-in-adult-rats
#15
Desanka Milanovic, Vesna Pesic, Natasa Loncarevic-Vasiljkovic, Vladimir Avramovic, Vesna Tesic, Vesna Jevtovic-Todorovic, Selma Kanazir, Sabera Ruzdijic
Propofol is a general anesthetic commonly used in pediatric clinical practices. Experimental findings demonstrate that anesthetics induce widespread apoptosis and cognitive decline in a developing brain. Although anesthesia-mediated neurotoxicity is the most prominent during intense period of synaptogenesis, the effects of an early anesthesia exposure on the synapses are not well understood. The aim of this study was to examine the effects of neonatal propofol anesthesia on the expression of key proteins that participate in synaptogenesis and synaptic plasticity and to evaluate long-term neurobehavioral abnormalities in the mature adult brain...
April 24, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28435978/-digoxin-inhibits-migration-and-invasion-of-human-gastric-carcinoma-mkn45-cells-through-down-regulation-of-aeg-1
#16
Ming-Chen Cui, Xing-Hong Wang, Lei Yuan, Jun-Ping Xiong
This study was designed to investigate the effect of digoxin on migration and invasion of human gastric carcinoma MKN45 cells and its possible mechanism. MKN45 cells were treated with different concentrations of digoxin for 24 h. The shRNA-AEG-1 plasmid was transfected into MKN45 cells via lipofectamine to block the expression of astrocyte elevated gene-1 (AEG-1). Western blot was used to analyze the protein levels of matrix metalloproteinase-9 (MMP-9), E-cadherin and AEG-1. The result showed that digoxin reduced the abilities of migration and invasion (P < 0...
April 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28435772/self-assembled-bifunctional-peptide-as-effective-drug-delivery-vector-with-powerful-antitumor-activity
#17
Rangrang Fan, Lan Mei, Xiang Gao, Yuelong Wang, Mingli Xiang, Yu Zheng, Aiping Tong, Xiaoning Zhang, Bo Han, Liangxue Zhou, Peng Mi, Chao You, Zhiyong Qian, Yuquan Wei, Gang Guo
E-cadherin/catenin complex is crucial for cancer cell migration and invasion. The histidine-alanine-valine (HAV) sequence has been shown to inhibit a variety of cadherin-based functions. In this study, by fusing HAV and the classical tumor-targeting Arg-Gly-Asp (RGD) motif and Asn-Gly-Arg (NGR) motif to the apoptosis-inducing peptide sequence-AVPIAQK, a bifunctional peptide has been constructed with enhanced tumor targeting and apoptosis effects. This peptide is further processed as a nanoscale vector to encapsulate the hydrophobic drug docetaxel (DOC)...
April 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/28435292/reg3a-promotes-the-proliferation-migration-and-invasion-of-gastric-cancer-cells
#18
Zhou-Feng Chen, Zhi-Ming Huang, Hai-Bo Xue, Xiu-Qing Lin, Ren-Ping Chen, Meng-Jun Chen, Rui-Fang Jin
The mechanism underlying the metastasis of gastric cancer (GC) cells remains elusive. REG3A is considered an oncogene in various cancers, but in GC its role is unclear. Here, we report that the expression of REG3A was significantly increased in the tumor tissues of patients with GC compared with the matched normal tissues. Knockdown of REG3A induced by specific small interfering RNA (siRNA) significantly repressed the proliferation of GC cells for 24 h or 48 h. Moreover, knockdown of REG3A significantly suppressed the migration, invasion, and adhesion of GC cells in vitro...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28435022/maternal-separation-induced-hippocampal-changes-in-cadherin-1-cdh-1-mrna-and-on-recognition-memory-in-adolescent-mice
#19
Lucas Araújo de Azeredo, Luis Eduardo Wearick-Silva, Thiago Wendt Viola, Saulo Gantes Tractenberg, Anderson Centeno da Silva, Rodrigo Orso, Nadja Schröder, Timothy William Bredy, Rodrigo Grassi-Oliveira
In rodents, disruption of mother-infant attachment induced by maternal separation (MS) is associated with recognition memory impairment and long-term neurobiological consequences. Particularly stress-induced modifications have been associated to disruption of cadherin (CDH) adhesion function, which plays an important role in remodeling of neuronal connection and synaptic plasticity. This study investigated the sex-dependent effect of MS on recognition memory and mRNA levels of classical type I and type II CDH and the related β -catenin (β -Cat) in the hippocampus and prefrontal cortex of late adolescent mice...
April 20, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28434939/calreticulin-is-required-for-tgf-%C3%AE-induced-epithelial-to-mesenchymal-transition-during-cardiogenesis-in-mouse-embryonic-stem-cells
#20
Fereshteh Karimzadeh, Michal Opas
Calreticulin, a multifunctional endoplasmic reticulum resident protein, is required for TGF-β-induced epithelial-to-mesenchymal transition (EMT) and subsequent cardiomyogenesis. Using embryoid bodies (EBs) derived from calreticulin-null and wild-type (WT) embryonic stem cells (ESCs), we show that expression of EMT and cardiac differentiation markers is induced during differentiation of WT EBs. This induction is inhibited in the absence of calreticulin and can be mimicked by inhibiting TGF-β signaling in WT cells...
April 13, 2017: Stem Cell Reports
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