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Now showing items 21-30 of 65
Raman spectroscopy: the gateway into tomorrow's virology
(East Carolina University, 2006-06-28)
In the molecular world, researchers act as detectives working hard to unravel the mysteries surrounding cells. One of the researchers' greatest tools in this endeavor has been Raman spectroscopy. Raman spectroscopy is a ...
The Pseudomonas Quinolone Signal Regulates rhl Quorum Sensing in Pseudomonas aeruginosa
(East Carolina University, 2000-05)
The opportunistic pathogen Pseudomonas aeruginosa uses intercellular signals to control the density-dependent expression of many virulence factors. The las and rhl quorum-sensing systems function, respectively, through the ...
Thioredoxin Reductase Is Essential for Thiol/Disulfide Redox Control and Oxidative Stress Survival of the Anaerobe Bacteroides fragilis
(East Carolina University, 2007-11)
Results of this study showed that the anaerobic, opportunistic pathogen Bacteroides fragilis lacks the
glutathione/glutaredoxin redox system and possesses an extensive number of putative thioredoxin (Trx)
orthologs. ...
Invasion and Intracellular Survival of Burkholderia cepacia
(East Carolina University, 2000-01)
Burkholderia cepacia has emerged as an important pulmonary pathogen in immunocompromised patients
and in patients with cystic fibrosis (CF). Little is known about the virulence factors and pathogenesis of B.
cepacia, ...
Production of the Siderophore 2,3-Dihydroxybenzoic Acid Is Required for Wild-Type Growth of Brucella abortus in the Presence of Erythritol under Low-Iron Conditions In Vitro
(East Carolina University, 2003-05)
Production of the siderophore 2,3-dihyroxybenzoic acid (2,3-DHBA) is required for the wild-type virulence of Brucella abortus in cattle. A possible explanation for this requirement was uncovered when it was determined that ...
Roles of the RAF/MEK/ERK Pathway in Cell Growth, Malignant Transformation and Drug Resistance
(East Carolina University, 2007-08)
Growth factors and mitogens use the Ras/Raf/MEK/ERK signaling cascade to transmit signals from their receptors to regulate gene expression and prevent apoptosis. Some components of these pathways are mutated or aberrantly ...
Targeting the leukemic stem cell: the Holy Grail of leukemia therapy
(East Carolina University, 2009-01)
Since the discovery of leukemic stem cells (LSCs) over a decade ago, many of their critical biological
properties have been elucidated, including their distinct replicative properties, cell surface
phenotypes, their ...
Enforced expression of HoxA9 in b-lineage all promotes survival and proliferation of leukemic cells
(East Carolina University, 2009)
HoxA9 is frequently overexpressed in acute myeloid leukemia, myelodysplastic syndrome and a subset of acute lymphoblastic leukemia. In mouse models, HoxA9 has been shown to promote leukemogenesis. In spite of a seemingly ...
The Redox-Sensitive Transcriptional Activator OxyR Regulates the Peroxide Response Regulon in the Obligate Anaerobe Bacteroides fragilis
(East Carolina University, 2000-09)
The peroxide response-inducible genes ahpCF, dps, and katB in the obligate anaerobe Bacteroides fragilis are
controlled by the redox-sensitive transcriptional activator OxyR. This is the first functional oxidative ...
The Pseudomonas aeruginosa devB/SOL Homolog, pgl, Is a Member of the hex Regulon and Encodes 6-Phosphogluconolactonase
(East Carolina University, 2000-07)
A cyclic version of the Entner-Doudoroff pathway is used by Pseudomonas aeruginosa to metabolize carbohydrates. Genes encoding the enzymes that catabolize intracellular glucose to pyruvate and glyceraldehyde 3- phosphate ...