Browsing Pharmacology and Toxicology by Title
Now showing items 8-27 of 27
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E-Cadherin negatively modulates delta-catenin-induced morphological changes and RhoA activity reduction by competing with p190RhoGEF for delta-catenin
(East Carolina University, 2008-12-12)δ-Catenin is a member of the p120-catenin subfamily of armadillo proteins. Here, we describe distinctive features of δ-catenin localization and its association with E-cadherin in HEK293 epithelial cells. In HEK293 cells ... -
Hyaluronan Oligosaccharides Inhibit Tumorigenicity of Osteosarcoma Cell Lines MG-63 and LM-8 in Vitro and in Vivo via Perturbation of Hyaluronan-Rich Pericellular Matrix of the Cells
(East Carolina University, 2007-07)Numerous studies have demonstrated a correlation between hyaluronan expression and the malignant properties of various kinds of cancer , and inhibition of hyaluronan production causes decreased tumor growth. Hyaluronan ... -
Identification of a novel Leucine-rich repeat protein and candidate PP1 regulatory subunit expressed in developing spermatids
(East Carolina University, 2008-01-31)Background: Spermatogenesis is comprised of a series of highly regulated developmental changes that transform the precursor germ cell into a highly specialized spermatozoon. The last phase of spermatogenesis, termed ... -
Identification of E2F1 as a positive transcriptional regulator for delta-catenin
(East Carolina University, 2008-05-02)Delta-Catenin is upregulated in human carcinomas. However, little is known about the potential transcriptional factors that regulate delta-catenin expression in cancer. Using a human delta-catenin reporter system, we have ... -
Identification of Extracellular d-Catenin Accumulation for Prostate Cancer Detection
(East Carolina University, 2009-03-01)BACKGROUND—Prostate cancer is the second leading cause of cancer death in men, and early detection is essential to reduce mortality and increase survival. δ-Catenin is a unique β-catenin superfamily protein primarily ... -
Increased DJ-1 expression under oxidative stress and in Alzheimer's disease brains
(East Carolina University, 2009-02-25)Mutations in the DJ-1 gene have been linked to autosomal recessive familial Parkinson's disease. To understand the function of DJ-1, we determined the DJ-1 expression in both zebrafish and post mortem human brains. We found ... -
Increased nucleotide polymorphic changes in the 5'-untranslated region of δ-catenin (CTNND2) gene in prostate cancer
(East Carolina University, 2009-01)Cancer pathogenesis involves multiple genetic and epigenetic alterations, which result in oncogenic changes in gene expression. δ-Catenin (CTNND2) is overexpressed in cancer although the mechanisms of its upregulation are ... -
Interaction of memantine with ethanol consumption and dopaminergic function in high ethanol preferring rats
(East Carolina University, 2009)N-methyl-D-aspartate (NMDA) receptor antagonists have been reported to decrease ethanol consumption in rodents, but these drugs often produce adverse side effects. Memantine is a neuroprotective and low-affinity, ... -
Kif5B and Kifc1 Interact and Are Required for Motility and Fission of Early Endocytic Vesicles in Mouse Liver
(East Carolina University, 2007-05)Early endocytic vesicles loaded with Texas Red asialoorosomucoid were prepared from mouse liver. These vesicles bound to microtubules in vitro, and upon ATP addition, they moved bidirectionally, frequently undergoing fission ... -
Mast cells and the IL-33/ST2 axis are essential determinants of carbon nanotube toxicity
(East Carolina University, 2012)The rise of nanomaterial use in a variety of applications, including biomedical imaging and drug delivery, has led to concern about the potentially hazardous impacts on human health. Mast cells are critical for innate and ... -
Mechanisms for central cannabinoid receptor 1 evoked sympathoexcitation/pressor response in conscious rats
(East Carolina University, 2010)The main goal of the current study was to elucidate the molecular mechanisms implicated in central cannabinoid receptor 1 (CB1R)-evoked sympathoexcitation/pressor response. In pursuit of this goal, the candidate first ... -
Mechanisms Involved in the Cerebrovascular Dilator Effects of N-methyl-D-aspartate in Cerebral Cortex
(East Carolina University, 2007-11)Glutamate and its synthetic analogues N-methyl-D-aspartate (NMDA), kainate, and alpha-amino-3-hydroxy-5-methylisoxazole-4-propionate (AMPA) are potent dilator agents in the cerebral circulation. The close linkage between ... -
Molecular Mechanisms of Peripheral N-Methyl-D-Aspartate Mediated Pressor Response
(East Carolina University, 2012)The primary goal of this study was to characterize the N-Methyl-D-Aspartate (NMDA) receptor within the cardiovascular system and elucidate the molecular mechanisms involved in peripheral NMDA receptor-mediated pressor ... -
Nonreceptor Tyrosine Kinase c-Yes Interacts with Occludin during Tight Junction Formation in Canine Kidney Epithelial Cells
(East Carolina University, 2002-04)Occludin is an integral membrane protein that is tyrosine phosphorylated when localized at tight junctions. When Ca2 was depleted from the culture medium, occludin tyrosine phosphorylation was diminished from Madin-Darby ... -
Oxytocin Modulation of Zebra Finch Vocal Development
(East Carolina University, 2010)Autism spectrum disorder is associated with deficits in three main behavioral areas: social behaviors, repetitive behaviors, and language abnormalities. Accumulating evidence suggests a potential role for oxytocin signaling ... -
Perfluorooctanoic acid-induced developmental cardiotoxicity in an avian model
(East Carolina University, 2013)Perfluorooctanoic acid (PFOA) is a synthetic chemical used in polyfluormer production. It is a widespread environmental contaminant and is known to induce developmental toxicity in rodent models. As several related compounds ... -
Presenilin-1 inhibits delta-catenin-induced cellular branching and promotes delta-catenin processing and turnover
(East Carolina University, 2006-12-29)Although delta-catenin/neural plakophilin-related armadillo protein (NPRAP) was reported to interact with presenilin-1 (PS-1), the effects of PS-1 on delta-catenin have not been established. In this study, we report that ... -
Role of nicotinic acetylcholine receptor subtypes α4β2 and α7 in nicotine-ethanol interaction and cross-tolerance: functional correlation with cerebellar nitric oxide
(East Carolina University, 2010)The prevalent co-abuse of alcohol and tobacco products results in higher morbidity and mortality rates than those caused by either drug alone, thus posing a serious health problem. Understanding the interactive relationship ... -
Small Molecule, Non-Peptide p75NTR Ligands Inhibit Aß-Induced Neurodegeneration and Synaptic Impairment
(East Carolina University, 2008-11-03)The p75 neurotrophin receptor (p75NTR) is expressed by neurons particularly vulnerable in Alzheimer’s disease (AD). We tested the hypothesis that non-peptide, small molecule p75NTR ligands found to promote survival signaling ... -
Tinigible Body Macrophages in Regulation of Germinal Center Reactions
(East Carolina University, 1998)Tingible body macrophages (TBM), long thought simply as scavengers of apoptotic lymphocytes, are located in the unique microenvironment of germinal centers in close proximity to antigen-retaining follicular dendritic cells ...