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https://www.readbyqxmd.com/read/29747491/gastric-mucosal-atrophy-impedes-housekeeping-gene-methylation-in-gastric-cancer-patients
#1
Jung-Hwan Oh, Mun-Gan Rhyu, Suk-Il Kim, Mi-Ri Yun, Jung-Ha Shin, Seung-Jin Hong
Purpose: Helicobacter pylori infection induces phenotype-stabilizing methylation and promotes gastric mucosal atrophy that can inhibit CpG-island methylation. Relationship between the progression of gastric mucosal atrophy and the initiation of CpG-island methylation was analyzed to delineate epigenetic period for neoplastic transformation. Materials and Methods: Normal-appearing gastric mucosa was biopsied from 110 H. pylori‒positive controls, 95 H. pylori‒negative controls, 99 gastric cancer patients, and 118 gastric dysplasia patients...
April 30, 2018: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/29723130/trefoil-factor-3-in-perinatal-pancreas-is-increased-by-gestational-low-protein-diet-and-associated-with-accelerated-%C3%AE-cell-maturation
#2
Louise Winkel, Annika Bagge, Louise Larsen, Tobias N Haase, Morten Rasmussen, Jeanette Lykke, Dennis B Holmgaard, Lars Thim, Jens H Nielsen, Louise T Dalgaard
The endocrine pancreas expands markedly in the first postnatal days and the insulin producing β-cells initiate a functional maturation preceded by a morphological change of the islets of Langerhans. Trefoil factor 3 (TFF3) is a secreted peptide expressed in intestinal epithelia, where it promotes migration, but its role in the pancreas is not characterized. The aim of this study was to examine the expression and function of TFF3 in perinatal rat pancreas, ex vivo cultured fetal rat pancreas and in the rat β-cell line INS-1E...
May 3, 2018: Islets
https://www.readbyqxmd.com/read/29715436/detection-of-her2-amplification-in-formalin-fixed-paraffin-embedded-breast-carcinoma-tissue-with-digital-pcr-using-two-tff3-sequences-as-internal-reference
#3
Runliu Yu, Wenjing Xuan, Lei Zhou, Ying Luo, Xinyang Liu, Peiwu Xiong, Xuyi Ren
PURPOSE: Droplet digital PCR (ddPCR) is a highly accurate method to determine DNA concentration and detect copy number variations. We developed an approach to assess HER2 gene amplification status using ddPCR with two sequences of TFF3 as reference probes. EXPERIMENTAL DESIGN: 76 templates of carcinoma DNA were prepared from formalin-fixed paraffin-embedded (FFPE) tissues. Digital PCR assay of the copy number of HER2 and TFF3 DNA was performed on the samples. The results were compared to prior fluorescent in-situ hybridation (FISH) assays performed on the same samples...
April 28, 2018: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/29670469/dietary-n-3-pufa-may-attenuate-experimental-colitis
#4
Cloé Charpentier, Ronald Chan, Emmeline Salameh, Khaly Mbodji, Aito Ueno, Moïse Coëffier, Charlène Guérin, Subrata Ghosh, Guillaume Savoye, Rachel Marion-Letellier
Background: Inflammatory bowel diseases (IBD) occurred in genetically predisposed people exposed to environmental triggers. Diet has long been suspected to contribute to the development of IBD. Supplementation with n-3 polyunsaturated fatty acids (PUFA) protects against intestinal inflammation in rodent models while clinical trials showed no benefits. We hypothesized that intervention timing is crucial and dietary fatty acid pattern may influence intestinal environment to modify inflammation genesis...
2018: Mediators of Inflammation
https://www.readbyqxmd.com/read/29621542/glycolytic-inhibitor-2-deoxy-d-glucose-activates-migration-and-invasion-in-glioblastoma-cells-through-modulation-of-the-mir-7-5p-tff3-signaling-pathway
#5
Akanchha Shukla, Priyanka Gupta, Romila Singh, Durga Prasad Mishra
Glioblastomas (GBMs) are characterized by the metabolic shift towards aerobic glycolysis, rapid proliferation and acquisition of the migratory and invasive phenotype aiding tumor angiogenesis. The glycolytic inhibitor 2-Deoxy-d-glucose (2-DG) used for targeting glycolysis in GBMs is ineffective in inhibiting migration and invasion. In the present study we report that 2-DG treatment downregulates the tumor suppressive miR-7-5p in GBM cell lines in vitro. Overexpression of miR-7-5p significantly reduced migration and invasion in GBM cell lines...
April 2, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29555969/nucleotide-mediated-spdef-modulates-tff3-mediated-wound-healing-and-intestinal-barrier-function-during-the-weaning-process
#6
Sang In Lee, In Ho Kim
Most alterations during weaning involve physiological changes in intestinal structure and function. Here, we evaluated the molecular mechanisms regulating the effects of nucleotides on weaning. Nucleotide treatment induced Trefoil factor 3 (TFF3) expression and IPEC-J2 cell growth and reduced wound width. Treatment with nucleosides and TFF3 in lipopolysaccharide-challenged IPEC-J2 cells increased intestinal transepithelial electrical resistance and decreased intestinal permeability. Additionally, nucleosides improved intestinal barrier function through induction of TFF3-mediated phosphatidylinositol 3-kinase/Akt, extracellular signal-regulated kinase 1/2, p38, and Janus kinase/signal transducer and activator of transcription signaling pathways...
March 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29534576/lentivirus-mediated-shrna-interference-of-trefoil-factor-3-blocks-cell-viability-migration-and-invasion-in-the-papillary-thyroid-carcinoma-cells
#7
J Wu, H Zhang, W Zhang, J Zhang, X Lin, G Xue, F Gao
Trefoil factor 3 (TFF3), a regulatory protein composed of 59 amino acids, has been suggested to be involved in pathogen- esis, proliferation, invasion, migration and apoptosis in multiple malignant tumors. However, the roles of TFF3 concerning the viability, migration and invasion in papillary thyroid carcinoma cells have not yet been studied. This study aimed to investigate the effect of TFF3 knockdown on a thyroid papillary carcinoma TPC-1 cell line both in vitro and in vivo. In the present study, lentivirus-mediated short hairpin RNA (shRNA) targeting TFF3 plasmids were first constructed and stable TPC-1 cells were obtained while their TFF3 gene was silenced with either shTFF3-TPC-1, or a scrambled shRNA control...
2018: Neoplasma
https://www.readbyqxmd.com/read/29511890/urinary-clusterin-a-novel-urinary-biomarker-associated-with-pediatric-lupus-renal-histopathologic-features-and-renal-survival
#8
Chao-Yi Wu, Huang-Yu Yang, Hui-Ping Chien, Min-Hua Tseng, Jing-Long Huang
BACKGROUND: Lupus nephritis (LN) is a major risk factor for systemic lupus erythematous (SLE)-related morbidity and mortality. With the aim of bypassing renal biopsy, we analyzed urinary biomarkers for their ability to predict renal histopathologic features and end-stage kidney disease (ESKD). METHODS: Urinary albumin, ß2-microglobulin (B2M), cystatin C, kidney injury molecule-1 (KIM-1), monocyte chemoattractant protein 1 (MCP-1), clusterin, calbindin, interleukin-18 (IL-18), neutrophil gelatinase-associated lipocalin (NGAL), trefoil factor 3 (TFF3), osteopontin, and glutathione S-transferase π (GST-π) levels were measured at time of renal biopsy...
March 6, 2018: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/29392081/trefoil-factor-3-cholinesterase-and-homocysteine-potential-predictors-for-parkinson-s-disease-dementia-and-vascular-parkinsonism-dementia-in-advanced-stage
#9
Jing Zou, Zhigang Chen, Caiqian Liang, Yongmei Fu, Xiaobo Wei, Jianjun Lu, Mengqiu Pan, Yue Guo, Xinxue Liao, Huifang Xie, Duobin Wu, Min Li, Lihui Liang, Penghua Wang, Qing Wang
Trefoil factor 3 (TFF3), cholinesterase activity (ChE activity) and homocysteine (Hcy) play critical roles in modulating recognition, learning and memory in neurodegenerative diseases, such as Parkinson's disease dementia (PDD) and vascular parkinsonism with dementia (VPD). However, whether they can be used as reliable predictors to evaluate the severity and progression of PDD and VPD remains largely unknown. METHODS: We performed a cross-sectional study that included 92 patients with PDD, 82 patients with VPD and 80 healthy controls...
February 2018: Aging and Disease
https://www.readbyqxmd.com/read/29383490/altered-goblet-cell-function-in-hirschsprung-s-disease
#10
Hiroki Nakamura, Christian Tomuschat, David Coyle, Anne-Marie O'Donnel, Tristan Lim, Prem Puri
AIMS AND OBJECTIVES: Hirschsprung's disease-associated enterocolitis (HAEC) is the most serious complication of Hirschsprung's disease (HSCR). HAEC occurs in 17-50% of patients with HSCR and may occur before or after a properly performed pull-through operation. The pathogenesis of HAEC is poorly understood. It is well recognized that a complex mucosal barrier protects, as the first line of defense, the surface of healthy intestinal tract from adhesion and invasion by luminal micro-organisms...
February 2018: Pediatric Surgery International
https://www.readbyqxmd.com/read/29241727/simple-classifiers-for-molecular-subtypes-of-colorectal-cancer
#11
Woo Gyeong Kim, Joo Yeon Kim, Do Youn Park
BACKGROUND AND STUDY AIM: Colorectal cancer (CRC) is a heterogeneous disease entity with a diverse biological pathogenesis. This study aims to validate the two studies published in 2013 which established a separate CRC molecular subtype classification by utilizing a rapidly accessible miniclassifier, and verify a simplified version thereof. PATIENTS AND METHODS: Participants diagnosed with CRC (n = 568) were subtyped in three classifications for characteristic, and prognostic purposes...
December 2017: Arab Journal of Gastroenterology: the Official Publication of the Pan-Arab Association of Gastroenterology
https://www.readbyqxmd.com/read/29151819/production-of-monoclonal-antibodies-against-human-trefoil-factor-3-and-development-of-a-modified-sandwich-elisa-for-detection-of-trefoil-factor-3-homodimer-in-saliva
#12
Saichit Khummuang, Waraporn Phanphrom, Witida Laopajon, Watchara Kasinrerk, Ponlatham Chaiyarit, Supansa Pata
Background: Human trefoil factor (TFF) peptides consist of three members: TFF1, TFF2 and TFF3. TFF3 is the most abundant TFF peptide in saliva. TFF3 homodimer was suggested to be involved in apoptosis inhibition and malignancy. Determination of TFF3 homodimer expression profiles in saliva may lead to new information about oral biology and diseases. The objective of this study was to generate monoclonal antibodies (mAbs) against TFF3 and apply the produced mAbs for the establishment of ELISA for quantification of dimeric TFF3 in saliva...
2017: Biological Procedures Online
https://www.readbyqxmd.com/read/29100386/hypomethylation-associated-enhanced-transcription-of-trefoil-factor-3-mediates-tamoxifen-stimulated-oncogenicity-of-er-endometrial-carcinoma-cells
#13
Vijay Pandey, Min Zhang, Qing-Yun Chong, Mingliang You, Ainiah Rushdiana Raquib, Amit K Pandey, Dong-Xu Liu, Liang Liu, Lan Ma, Sudhakar Jha, Zheng-Sheng Wu, Tao Zhu, Peter E Lobie
Tamoxifen (TAM) is widely used as an adjuvant therapy for women with breast cancer (BC). However, TAM possesses partial oestrogenic activity in the uterus and its use has been associated with an increased incidence of endometrial carcinoma (EC). The molecular mechanism for these observations is not well understood. Herein, we demonstrated that forced expression of Trefoil factor 3 ( TFF3) , in oestrogen receptor-positive (ER+) EC cells significantly increased cell cycle progression, cell survival, anchorage-independent growth, invasiveness and tumour growth in xenograft models...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29100347/trefoil-factor-3-contributes-to-the-malignancy-of-glioma-via-regulating-hif-1%C3%AE
#14
Shuo Diao, Qianqian Zheng, Jian Gao, Yiqun Yao, Siyang Ren, Yongjian Liu, Yinghui Xu
Trefoil factor 3 (TFF3) plays significant roles in several solid tumors. However, the expression pattern and function of TFF3 in glioblastoma (GBM) have not been reported. Here, we report that expression level of TFF3 significantly elevated in glioma and correlated with the prognosis of glioma patients. Then we found TFF3 promotes proliferation, invasion, and migration and inhibits apoptosis of glioma cells in vitro , and delayed tumor progression in subcutaneous xenograft nude mice, and prolonged the median survival time in orthotopic xenograft mice...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29099279/mtor-signaling-is-essential-for-the-development-of-thymic-epithelial-cells-and-the-induction-of-central-immune-tolerance
#15
Zhanfeng Liang, Lianjun Zhang, Huiting Su, Rong Luan, Ning Na, Lina Sun, Yang Zhao, Xiaodong Zhang, Qian Zhang, Juan Li, Lianfeng Zhang, Yong Zhao
Thymic epithelial cells (TECs) are critical for the establishment and maintenance of appropriate microenvironment for the positive and negative selection of thymocytes and the induction of central immune tolerance. Yet, little about the molecular regulatory network on TEC development and function is understood. Here, we demonstrate that MTOR (mechanistic target of rapamycin [serine/threonine kinase]) is essential for proper development and functional maturation of TECs. Pharmacological inhibition of MTOR activity by rapamycin (RPM) causes severe thymic atrophy and reduction of TECs...
2018: Autophagy
https://www.readbyqxmd.com/read/29028798/obstructive-sleep-apnea-and-rhonchopathy-are-associated-with-downregulation-of-trefoil-factor-family-peptide-3-tff3-implications-of-changes-in-oral-mucus-composition
#16
Regina Siber-Hoogeboom, Martin Schicht, Sebastian Hoogeboom, Friedrich Paulsen, Maximilian Traxdorf
STUDY OBJECTIVES: Trefoil factor family (TFF) peptides belong to the family of mucin-associated peptides and are expressed in most mucosal surfaces. TFF peptides carry out functions such as proliferation and migration enhancement, anti-apoptosis, and wound healing. Moreover, TFFs are associated with mucins and interact with them as "linker peptides", thereby influencing mucus viscosity. To test the hypothesis that in rhonchopathy and obstructive sleep apnea (OSA) changes occur in the expression of TFF3 and -2 that could contribute to changes in mucus viscosity, leading to an increase in upper airway resistance during breathing...
2017: PloS One
https://www.readbyqxmd.com/read/28930171/comprehensive-evaluation-of-tff3-promoter-hypomethylation-and-molecular-biomarker-potential-for-prostate-cancer-diagnosis-and-prognosis
#17
Maibritt Nørgaard, Christa Haldrup, Tine Maj Storebjerg, Else Marie Vestergaard, Peter J Wild, Søren Høyer, Michael Borre, Torben Falck Ørntoft, Karina Dalsgaard Sørensen
Overdiagnosis and overtreatment of clinically insignificant tumors remains a major problem in prostate cancer (PC) due to suboptimal diagnostic and prognostic tools. Thus, novel biomarkers are urgently needed. In this study, we investigated the biomarker potential of Trefoil factor 3 (TFF3) promoter methylation and RNA expression levels for PC. Initially, by quantitative methylation specific PCR (qMSP) analysis of a large radical prostatectomy (RP) cohort (n = 292), we found that the TFF3 promoter was significantly hypomethylated in PC compared to non-malignant (NM) prostate tissue samples (p < 0...
September 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28901375/microrna-7-5p-regulates-the-proliferation-and-migration-of-intestinal-epithelial-cells-by-targeting-trefoil-factor-3-via-inhibiting-the-phosphoinositide-3-kinase-akt-signalling-pathway
#18
Jing Guo, Lingfen Xu, Xu Teng, Mei Sun
Trefoil factor 3 (TFF3) reconstructs the epithelial barrier by stimulating epithelial cell migration and proliferation, and significantly contributes to intestinal mucosal damage and healing. In a previous study, TFF3 was identified as a novel target of microRNA-7-5p (miR-7-5p). The aim of the present study was to investigate the roles and mechanisms of miR-7-5p in the proliferation and migration of intestinal epithelial cells. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was performed to determine the expression level of miR-7-5p in the experimental groups...
November 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28877911/hepatic-gale-regulates-whole-body-glucose-homeostasis-by-modulating-tff3-expression
#19
Yi Zhu, Shangang Zhao, Yingfeng Deng, Ruth Gordillo, Alexandra L Ghaben, Mengle Shao, Fang Zhang, Ping Xu, Yang Li, Huachuan Cao, Olga Zagnitko, David A Scott, Rana K Gupta, Chao Xing, Bei B Zhang, Hua V Lin, Philipp E Scherer
Transcripts of key enzymes in the Leloir pathway of galactose metabolism in mouse livers are significantly increased after chronic high-fat/high-sucrose feeding. UDP-galactose-4-epimerase (GALE) is the last enzyme in this pathway that converts UDP-galactose to UDP-glucose and was previously identified as a downstream target of the endoplasmic reticulum (ER) stress effector spliced X-box binding protein 1, suggesting an interesting cross talk between galactose and glucose metabolism in the context of hepatic ER stress and whole-body metabolic fitness...
November 2017: Diabetes
https://www.readbyqxmd.com/read/28861518/butyrate-supplementation-at-high-concentrations-alters-enteric-bacterial-communities-and-reduces-intestinal-inflammation-in-mice-infected-with-citrobacter-rodentium
#20
Janelle A Jiminez, Trina C Uwiera, D Wade Abbott, Richard R E Uwiera, G Douglas Inglis
Butyrate is a short-chain fatty acid by-product of the microbial fermentation of dietary fermentable materials in the large intestine; it is the main energy source for enterocyte regeneration, modulates the enteric microbial community, and contributes to increasing host health via mechanisms that are relatively poorly defined. Limited research has examined the therapeutic potential of butyrate using models of enteric inflammation incited by pathogenic organisms. We used Citrobacter rodentium to incite acute Th1/Th17 inflammation to ascertain the impact of butyrate on the host-microbiota relationship...
July 2017: MSphere
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