Search Results
Results 1 - 50 of 1989
1 2 3 4 5 6 7 8 9 10 >
Brown Taylor C TC Yale Endocrine Neoplasia Laboratory, Department of Surgery, Yale University School of Medicine, New Haven, - - 2014
Follicular thyroid hyperplasia (FTH) refers to enlargement of the thyroid gland due to cellular hyperplasia. It is frequently encountered in clinical practice in nontoxic uninodular or multinodular goiter. The genetic and epigenetic events associated with the origin and malignant potential of FTH are poorly understood. To analyze FTH samples for ...
Waser Beatrice B Cell Biology and Experimental Cancer Research, Institute of Pathology, University of Berne, Berne, - - 2014
Glucagon-like-peptide-1 (GLP1) analogs may induce thyroid or pancreatic diseases in animals, raising questions about their use in diabetic patients. There is, however, controversy regarding expression of GLP1 receptors (GLP1R) in human normal and diseased thyroid and pancreas. Here, 221 human thyroid and pancreas samples were analyzed for GLP1R immunohistochemistry and ...
Giménez-Barcons Mireia M Divisió d'Immunologia, Hospital Universitari Vall d'Hebron, Vall d'Hebron Institut de Recerca, Barcelona 08035, - - 2014
Down syndrome (DS), or trisomy of chromosome 21, is the most common genetic disorder associated with autoimmune diseases. Autoimmune regulator protein (AIRE), a transcription factor located on chromosome 21, plays a crucial role in autoimmunity by regulating promiscuous gene expression (pGE). To investigate if autoimmunity in DS is promoted by ...
Balla B B 1st Department of Internal Medicine, Semmelweis University, Korányi S. u. 2/a, Budapest, 1083, Hungary, - - 2014
The aims of the present study were to examine gene and protein expression of the vitamin D-inactivating 24-hyroxylase (CYP24A1) and the activating 1-alpha-hydroxylase (CYP27B1) enzyme in human papillary thyroid cancer (PTC), furthermore, to investigate the association between CYP24A1 expression and numerous clinical, histological parameters and somatic oncogene mutation status of ...
Zhang Hongmei H Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, - - 2014
Histone deacetylase4, which is a class II histone deacetylase, plays a critical role in development, differentiation of muscle, cell proliferation and metabolism. In our study, we obtained the full-length HDAC4 cDNA, which included the coding region of 3171bp, an 180bp 5'untranslated region (UTR) and a 760bp 3'UTR.The deduced HDAC4 protein ...
Frau Carla C Department of Biomedical Sciences, Unit of Oncology and Molecular Pathology, University of Cagliari, Cagliari, - - 2014
Thyroid hormone receptors (TRs) are ligand-dependent transcription factors that mediate most of the effects elicited by the thyroid hormone 3,5,3'-L-triiodothyronine (T3). TRs have been implicated in tumorigenesis, although it is unclear whether they act as oncogenes or tumor suppressors, and at which stage of tumorigenesis their dysregulation occurs. Using the ...
Cheng Qianpeng Q Department of endocrinology, The Military General Hospital of Beijing PLA, 100700 Beijing, PR - - 2014
X-linked inhibitor of apoptosis protein (XIAP) is a major factor in cancer growth and progression. Reduction of XIAP induces apoptosis of anaplastic thyroid cancer (ATC), which accounts for more than 50% of thyroid cancer mortality. MicroRNAs (miRNAs) are short non-coding RNA molecules, which modulate gene expression via interaction with mRNA ...
Kerr Shana C SC School of Biology, Georgia Institute of Technology, Atlanta, GA 30332;Fellowships in Research and Science Teaching - - 2014
The Caenorhabditis elegans LSD1 H3K4me2 demethylase SPR-5 reprograms epigenetic transcriptional memory during passage through the germ line. Here we show that mutants in the H3K9me2 methyltransferase, met-2, result in transgenerational epigenetic effects that parallel spr-5 mutants. In addition, we find that spr-5;met-2 double mutants have a synergistic effect on sterility, ...
Muzzey Dale D University of California, San - - 2014
Though sequence differences between alleles are often limited to a few polymorphisms, these differences can cause large and widespread allelic variation at the expression level. Such allele-specific expression (ASE) has been extensively explored at the level of transcription but not translation. Here we measured ASE in the diploid yeast Candida ...
Herberg Maria M Institute for Medical Informatics and Biometry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, - - 2014
Mouse embryonic stem cells (mESCs) can be maintained in a proliferative and undifferentiated state over many passages (self-renewal) while retaining the potential to give rise to every cell type of the organism (pluripotency). Autocrine FGF4/Erk signalling has been identified as a major stimulus for fate decisions and lineage commitment in ...
Hébrant Aline A Institute of Interdisciplinary Research (IRIBHM), School of Medicine, Université libre de Bruxelles, Campus Erasme, Brussels, - - 2014
Anaplastic thyroid carcinoma (ATC) is the most lethal form of thyroid neoplasia and represents an end stage of thyroid tumor progression. No effective treatment exists so far. In this study, we analyzed the miRNA expression profiles of 11 ATC by microarrays and their relationship with the mRNA expression profiles of ...
Liu Zeming Z Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan, - - 2014
To assess usefulness of cytokeratin 19 (CK19), thyroperoxidase (TPO), Hector Battifora mesothelial epitope-1 (HBME-1) and galectin-3 (GAL3) in evaluation of aggressive behavior of PTCs. All available clinical and pathological data were reviewed in 168 papillary thyroid cancer patients; while the values as predictive markers of PTC were tested by univariate ...
Deneke Carlus - - 2013
Based on the experimental evidence that translating ribosomes stabilize the mRNAs, we introduce and study a theoretical model for the dynamic shielding of mRNA by ribosomes. We present an improved fitting of published decay assay data in E. coli and show that only one third of the decay patterns are exponential. ...
Hertel Stefanie - - 2013
Molecular genetic studies in the circadian model organism Synechococcus have revealed that the KaiC protein, the central component of the circadian clock in cyanobacteria, is involved in activation and repression of its own gene transcription. During 24 hours, KaiC hexamers run through different phospho-states during daytime. So far, it has ...
Zhang Shaojun - - 2013
To search for genetic regulators influencing miRNA transcript abundance, we performed a genome-wide association study (GWAS) to identify quantitative trait loci associated with primary miRNA transcript abundance (pri-miQTL) using genotype data from HapMap CEU phased data. We detected robust expression for 150 pri-miRNAs out of 1523 interrogated using RNA-seq. We ...
Hu Jianran - - 2013
We have observed low expression levels of MARVELD1, a novel tumor repressor, in multiple tumors; however, its function in normal cells has not been explored. We recently reported that MARVELD1 interacts with importin β1, which plays an important role in nonsense-mediated RNA decay(NMD). Here, we demonstrate that MARVELD1 substantially inhibits ...
Kojima Shihoko - - 2012
Poly(A) tails are 3' modifications of eukaryotic mRNAs that are important in the control of translation and mRNA stability. We identified hundreds of mouse liver mRNAs that exhibit robust circadian rhythms in the length of their poly(A) tails. Approximately 80% of these are primarily the result of nuclear adenylation coupled ...
Pereira Paulo N G - - 2012
The strength and spatiotemporal activity of Nodal signaling is tightly controlled in early implantation mouse embryos, including by autoregulation and feedback loops, and involves secreted and intracellular antagonists. These control mechanisms, which are established at the extra-embryonic/embryonic interfaces, are essential for anterior-posterior patterning of the epiblast and correct positioning of ...
Mestdagh Pieter - - 2012
MicroRNAs (miRNAs) are small noncoding RNA molecules that function as negative regulators of gene expression. They are essential components of virtually every biological process and deregulated miRNA expression has been reported in a multitude of human diseases including cancer. Owing to their small size (20-22 nucleotides), accurate quantification of miRNA ...
Nielsen Boye Schnack - - 2012
In situ hybridization (ISH) is a technology that allows detection of specific nucleic acid sequences in tissue samples at the cellular level. For detection of individual microRNAs (miRNAs) and mRNAs, the ISH technology determines the cellular origin of expression and provides information on expression levels in different tissue compartments and ...
Tarazona Sonia - - 2011
Next-generation sequencing (NGS) technologies are revolutionizing genome research, and in particular, their application to transcriptomics (RNA-seq) is increasingly being used for gene expression profiling as a replacement for microarrays. However, the properties of RNA-seq data have not been yet fully established, and additional research is needed for understanding how these ...
Zhao Wenming - - 2011
SUMMARY: mRNA/miRNA-seq technology is becoming the leading technology to globally profile gene expression and elucidate the transcriptional regulation mechanisms in living cells. Although there are many tools available for analyzing RNA-seq data, few of them are available as easy accessible online web tools for processing both mRNA and miRNA data ...
Kumar S - - 2011
Vaccines, antibiotics, and other therapeutic agents used to combat disease in poultry generate recurring costs and the potential of residues in poultry products. Enhancing the immune response using alternative approaches such as selection for increased disease resistance or dietary immunomodulation may be effective additions to the portfolio of strategies the ...
Qi Xiao-Ying - - 2011
To investigate the presence of transforming growth factor-beta 1 (TGF-ß1) and connective tissue growth factor (CTGF) in women with pelvic organ prolapse (POP). This study was conducted from May to December 2009. Fifty patients with POP that underwent vaginal hysterectomy in the Department of Gynecology, Renmin Hospital of Wuhan University, ...
Emanuele Enzo - - 2011
Cellulite, which appears as orange peel-type or cottage cheese-like dimpling of the skin on the thighs and buttocks, is a complex, multifactorial, cosmetic disorder of the subcutaneous fat layer and the overlying superficial skin. Adiponectin is an adipocyte-derived hormone mainly produced by subcutaneous fat that shows important protective anti-inflammatory and ...
Nagi Fayed Mohamad - - 2011
Genetic alterations in renal cell carcinoma (RCC) involve tumor suppressor genes such as Von Hippel-Lindau (VHL); proto-oncogenes such as MET and transcription factors such as TFE3 oncoprotein. To examine the clinicopathologic features and the expression of some oncogenic molecules in various RCCs in patients from Upper Egypt. The authors examined ...
Yamaguchi Yukie Y Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, - - 2011
Our previous studies have demonstrated increased expression of insulin-like growth factor binding protein-5 (IGFBP-5) in fibrotic tissues and IGFBP-5 induction of extracellular matrix (ECM) components. The mechanism resulting in increased IGFBP-5 in the extracellular milieu of fibrotic fibroblasts is unknown. Since Caveolin-1 (Cav-1) has been implicated to play a role ...
Medina Villaamil V - - 2011
The aim of this study was to provide a methodology to make a clear distinction between malignant tumors and morphologically similar benign processes, by examining the expression of EGFR, VEGF, HIF1-α, survivin, Bcl-2 and p53 proteins. Four groups of patient samples were studied: group 1, low-grade astrocytomas (WHO grades I-II) (n=6); group 2, ...
Thakral Beenu - - 2011
BACKGROUND:: Cellular neurothekeoma (CNT) is a benign cutaneous mesenchymal neoplasm. Most demonstrate a lobulated to micronodular architecture. Rarely, CNT demonstrates a predominantly fascicular growth pattern, without prominent sclerosis and thus can mimic cellular dermatofibroma (DF). METHODS:: Three CNT with a predominantly fascicular pattern were obtained. The clinicopathologic features and accompanying ...
Kalungi Sam - - 2011
Burkitt lymphoma accounts for approximately 50% of pediatric cancers in equatorial Africa and a majority of NHL in Uganda. The aim of the study was to examine the expression profile of the RB (pRb2 or p16) and p53 (p53, p14, or p21) pathways in biopsies of endemic BL, and compare ...
Abu El-Asrar Ahmed M - - 2011
Fibrotic disorders are associated with activation of fibroblasts into extracellular matrix-secreting myofibroblasts expressing α-smooth muscle actin (α-SMA). Myofibroblasts are the predominant cellular component of proliferative vitreoretinopathy (PVR) epiretinal membranes. We investigated the expression of molecules involved in myofibroblast activation, migration and proliferation in PVR epiretinal membranes. Fifteen membranes were studied ...
Mole D J - - 2011
A transcription regulatory complex (TRC) that includes Ets1, Ets2, PEA3 and β-catenin/T-cell factors regulates osteopontin (OPN) that is implicated in colorectal cancer (CRC) dissemination. The consistency of OPN transcriptional control between primary CRC and metastases is unclear. This study investigates expression and prognostic significance of the OPN-TRC in primary human ...
Butler Marcus W MW Department of Genetic Medicine, Weill Cornell Medical College, New York, New York, - - 2011
The cathepsin inhibitor Cystatin A (CSTA) has antiapoptotic properties linked with neoplastic changes in squamous cell epithelium, where it has been proposed as a diagnostic and prognostic marker of lung cancer. Notably, cystatin A is upregulated in dysplastic epithelium, prompting us to hypothesize that it might be modulated in chronic ...
Wang Aiming - - 2011
Women with polycystic ovary syndrome (PCOS) exhibit a lower pregnancy rate, which may be related to decreased estrogen receptor (ER) expression or endometrial receptivity. We measured expression of ERα, ERβ and the novel G protein-coupled ER (GPR30) in endometrium during window of implantation (WOI) in PCOS patients. Fifteen Chinese women ...
Guay Sophie - - 2011
OBJECTIVE: To investigate interleukin (IL) 1 receptor accessory protein (IL1RAcP) expression in the eutopic endometrium of women with endometriosis. DESIGN: Retrospective study. SETTING: Human reproduction research laboratory. PATIENT(S): Sixty-six women with endometriosis and 60 healthy women with no laparoscopic evidence of endometriosis. INTERVENTION(S): Endometrial tissue samples were obtained during laparoscopic ...
Wu Xueqiong - - 2011
Death-associated protein kinase 1 (DAPK1), a proapoptotic serine/threonine kinase, is a candidate tumor suppressor gene. We studied the methylation status of the promoter region of the DAPK1 gene and the expression of the DAPK1 protein in 78 bone marrow samples from untreated patients with myelodysplastic syndrome (MDS) by PCR and ...
Tsai Wen-Chung - - 2011
Ciprofloxacin-induced tendinopathy and tendon rupture have been previously described, principally affecting the Achilles tendon. This study was designed to investigate the effect of ciprofloxacin on expressions of matrix metalloproteinases (MMP)-2 and -9, tissue inhibitors of metalloproteinase (TIMP)-1 and -2 as well as type I collagen in tendon cells. Tendon cells ...
Sullivan Jack M - - 2011
Post-transcriptional gene silencing (PTGS) agents such as ribozymes, RNAi and antisense have substantial potential for gene therapy of human retinal degenerations. These technologies are used to knockdown a specific target RNA and its cognate protein. The disease target mRNA may be a mutant mRNA causing an autosomal dominant retinal degeneration ...
Pais Helio - - 2011
RNA silencing is a mechanism of genetic regulation that is mediated by short noncoding RNAs, or small RNAs (sRNAs). Regulatory interactions are established based on nucleotide sequence complementarity between the sRNAs and their targets. The development of new high-throughput sequencing technologies has accelerated the discovery of sRNAs in a variety ...
Brumbaugh Christopher D - - 2011
The nCounter analysis system (NanoString Technologies, Seattle, WA) is a technology that enables the digital quantification of multiplexed target RNA molecules using color-coded molecular barcodes and single-molecule imaging. This system gives discrete counts of RNA transcripts and is capable of providing a high level of precision and sensitivity at less ...
Kravchenko-Balasha Nataly - - 2011
Surprisal analysis is a thermodynamic-like molecular level approach that identifies biological constraints that prevents the entropy from reaching its maximum. To examine the significance of altered gene expression levels in tumorigenesis we apply surprisal analysis to the WI-38 model through its precancerous states. The constraints identified by the analysis are ...
Petit Alain - - 2011
Intervertebral disc (IVD) degeneration is associated with proteolytic degradation of proteoglycan aggregates present within the extracellular matrix of the disc. Link N peptide (DHLSDNYTLDHDRAIH) is the N-terminal peptide of link protein, which stabilizes the proteoglycan aggregates. It is generated in vivo by proteolytic degradation during tissue turnover. It has been ...
Cho Jae-We - - 2010
Conditioned medium from adipose-derived stem cells (ADSCs) stimulates both collagen synthesis and migration of dermal fibroblasts. However, it is still unknown whether conditioned media from tumor growth factor (TGF)-β1-treated ADSCs (TGF-β1-treated ADSCs-CM) induces increased expression of type I collagen, matrix metalloproteinase-1 (MMP-1), and migration as well as cell cycle regulatory ...
Huang Yaqin - - 2010
OBJECTIVE: Our study is to investigate whether tyrosine kinase receptor B (TrkB) is expressed in eutopic endometrium of women with adenomyosis and its association with clinical characteristics. METHODS: We collected endometrial tissues from 31 women with adenomyosis and 30 adenomyosis-free women undergoing surgery for benign indications. TrkB expression was assessed ...
Ye Qingsong - - 2011
Despite the use of collagen-derived scaffolds in regenerative medicine, little is known about the degradation mechanisms of these scaffolds in vivo. Non-crosslinked dermal sheep (NDSC) and gelatin disks were implanted subcutaneously in mice. NDSC disks showed a very low degradation rate, despite the presence of high numbers of macrophages and ...
Weinbaum Justin S JS Department of Biomedical Engineering, University of Minnesota, 7-105 Hasselmo Hall, 312 Church St. SE, Minneapolis, MN 55455, USA. - - 2010
It is advantageous to use biomaterials in tissue engineering that stimulate extracellular matrix (ECM) production by the cellular component. Connective tissue growth factor (CTGF) stimulates type I collagen (COL1A1) transcription, but is functionally limited as a free molecule. Using a matrix-binding domain (MBD) from microfibril-associated glycoprotein-1, the fusion protein MBD-CTGF ...
Sobral Lays M - - 2011
Background: Transforming growth factor-β1 (TGF-β1), its downstream signaling mediators (Smad proteins), and specific targets, including connective tissue growth factor (CTGF), play important roles in tissue remodeling and fibrosis via myofibroblast activation. We investigated the effect of overexpression of Smad7, a TGF-β1 signaling inhibitor, on transition of gingival fibroblast to myofibroblast. ...
Dangi-Garimella S S Division of Hematology/Oncology, Department of Medicine, Northwestern University Medical School, Chicago, IL, USA. - - 2011
Pancreatic ductal adenocarcinoma (PDAC) is associated with a pronounced collagen-rich fibrosis known as desmoplastic reaction; however, the role of fibrosis in PDAC is poorly understood. In this report we show that collagen can regulate the tumor suppressive let-7 family of microRNAs in pancreatic cancer cells. PDAC cells growing in 3D ...
Denecke Bernd B Interdisciplinary Centre for Clinical Research (IZKF) Aachen, RWTH Aachen University, 52074 Aachen, - - 2010
To analyse the influence of Smad7, antagonist of transforming growth factor (TGF)-β canonical signaling pathways on hepatic stellate cell (HSC) transdifferentiation in detail. We systematically analysed genes regulated by TGF-β/Smad7 in activated HSCs by microarray analysis and validated the results using real time polymerase chain reaction and Western blotting analysis. ...
Rao Hui-Ying - - 2010
Hepatic stellate cells (HSC) are the primary cell type mediating hepatic fibrosis. Although known for its antiviral effects, the inhibitory effects of interferon-beta (IFN-β) on HSC treatment have not yet been established. Both human and rat activated HSC cell lines were incubated with increasing concentrations of recombinant human IFN-β1a (rhIFN-β1a) ...
1 2 3 4 5 6 7 8 9 10 >