Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 34 for “"ErbB"”.
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Targeting The Dimerization Of ERBB Receptor Tyrosine Kinases
… of EGF receptors with the related ErbB2 receptor. Three sub-projects were completed in the process. The first project explored the feasibility of inhibiting the EGF receptor by targeting receptor dimerization with small molecules. Two lead compounds were initially predicted by …
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Spatial Stochastic Modeling of the ErbB Receptor Family
ErbB transmembrane receptors are a family of 4 receptor tyrosine kinases that interact with one another through homo and heterodimer interactions. When these dimers form, the kinase domains on the receptor tails interact with one another, transphosphorylating one another, initiating a signal …
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Unraveling the intricacies of spatial organization of the ErbB receptors and downstream signaling pathways
Faced with the complexity of diseases such as cancer which has 1012 mutations, altering gene expression, and disrupting regulatory networks, there has been a paradigm shift in the biological sciences and what has emerged is a much more quantitative field of biology. Mathematical modeling can aid in …
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The role of ErbB inhibitors in promoting nerve regeneration in a mouse model of nerve injury
… this thesis was to investigate whether the dual ErbB1-ErbB2 inhibitor lapatinib or the ErbB1 inhibitor gefitinib could promote nerve regeneration in both in vivo and in vitro models. Using a mouse transection and repair sciatic nerve injury model, lapatinib was found to increase the number of …
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Novel Role of ErbB-2 in Inhibition of Jagged-1-Mediated Trans-Activation of Notch in Breast Cancer
<p>The ErbB-2 gene is amplified and the resulting protein product overexpressed in 15-30% of breast tumors, and associated with aggressive behavior and poor overall survival. Currently, there are two FDA approved therapies targeting ErbB-2 for the treatment of ErbB-2 positive breast cancer: …
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Experimental and computational analysis of epidermal growth factor receptor pathway phosphorylation dynamics
… growth factor receptor (EGFR, also known as ErbB 1) is a prototypical receptor tyrosine kinase (RTK) that activates multi-kinase phosphorylation cascades to regulate diverse cellular processes, including proliferation, migration and differentiation. ErbB 1 heterooligomerizes with three close …
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Investigations into the role of protein phosphatases in the EGFR signaling network
… understand the role of phosphatases in the ErbB signaling network, experimental studies were carried out to validate assays and phosphatase inhibitors for gathering dynamic, system-wide data of phosphatase activity. We verified the use of In-Cell Westerns and phospho-ErbB ELISAs for these …
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Biomarcadores moleculares no esôfago de Barrett: análise comparativa da imunoexpressão tecidual do p53, c-erbB-2, E-caderina, COX-2 e KI-67, na esofagite por refluxo, no esôfago de Barrett e no adenocarcinoma associado ao esôfago de Barrett
… tecidual dos seguintes biomarcadores: p53, c-erbB-2, Ecaderina, COX 2 e Ki-67. As imunorreações qualitativas com p53, COX-2 e c-erbB-2 revelaram maior expressão no grupo III, contrastando com a positividade menor e decrescente dos grupos II e I (p<0,001; p=0,002; p<0,001, respectivamente). O …
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Understanding Acquired Resistance to Lapatinib In Breast Cancer Cells
… through epidermal growth factor receptor (EGFR/ErbB) family members plays a very important role in regulating proliferation, development, and malignant transformation of mammary epithelial cells. ErbB family members are often over-expressed in human breast carcinomas. Lapatinib is an ErbB1 and …
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Approaches towards development of novel fluorogenic biosensors for detection of small protein analytes
… defects and disease states. In particular, the ErbB family of receptors and ligands regulate key cellular processes such as proliferation, differentiation, and apoptosis during embryonic development, cellular homeostasis, and tumorigenesis. The generality of the ErbB-network has made it one of …
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Role of X-Linked Inhibitor of Apoptosis Protein in Therapeutic Resistance of Inflammatory Breast Cancer Cells
… of breast cancer that is often characterized by ErbB2 overexpression and ErbB2 activation. ErbB-targeting is clinically relevant using trastuzumab (anti-ErbB2 antibody) and lapatinib (small molecule ErbB1/2 inhibitor). However, acquired resistance is a common outcome even in IBC patients who show …
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Biophysical characterization of high affinity engineered single chain Fv antibody fragments
… affinity modulation in proteins. First, anti-c-erbB-2 antibodies and their binding partner, the extracellular domain of the glycoprotein tumor antigen c-erbB-2, were examined. Thermodynamic studies were carried out on the originally identified human scFv and three higher affinity mutants. …
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Role of Cuzd1 in mammary gland development and tumorigenesis
… epigen and epiregulin, which act via the ERBB receptors on the mammary epithelial cells. Interestingly, exposure of these cells to the EGF-like growth factors stimulated CUZD1 expression, triggered its nuclear translocation, and promoted CUZD1-dependent mitogenic activity. We postulated …
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Flourescent Biosensor-Based, Cdc42 Activity Imaging For Understanding the Regulation of Epidermal Growth Receptor (EGFR) Signalling in Head and Neck Cancer
… in mediating cancer cell response to EGFR and ErbB-family targeted therapy.Using optical imaging techniques such as, Fluorescence Resonance Energy Transfer (FRET) and Fluorescence Lifetime Imaging Microscopy (FUM) I have analysed Cdc42 activity in Squamous Carcinoma Cell Lines after EGFR …
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Effects of somatic cell nuclear transfer on transcripts related to IGF signaling, EGF signaling and cell adhesion during the peri-implantation period in cattle
… integrin signaling, IGF1R signaling, EGFR/ERBB signaling, and PI3K/AKT and ERK1/2 signaling, two signal transduction pathways induced by integrin clustering and IGF1R and EGFR/ERBB activation, were significantly affected by both implantation and SCNT. In addition, expression levels of genes …
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Characterization of Erbb4 Expression In Osteosarcoma
<p>ERBB4 (Her-4) is a member of the ERBB family of Class I receptor tyrosine kinases. ERBB4 is unique within the ERBB family for alternate splicing in its juxtamembrane and cytoplasmic regions, which produces four juxtamembrane isoforms and two cytoplasmic isoforms. The cleavable juxtamembrane …
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The Functional Roles for SWI/SNF Chromatin Remodeling Complexes in Physiology and Disease
… of mutant islets revealed increased Neuregulin-ERBB-NR4A signaling. Functionally, chemical inhibition of ERBB or NR4A was able to block increased regeneration associated with Arid1a loss. Together, this work defined the role of ARID1A in β-cells and provided new insights into the molecular …
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The Nrg Growth Factors and Their Receptor ErbB4 in the Developing Brain: Delineation of Nrg3 Expression and Neuritogenesis
… of growth factors (Nrg1-4) and their receptor, ErbB4, have been linked to mental illnesses considered to emerge as a result of abnormal neural development, such as schizophrenia, bipolar disorder, and depression. In the normal central nervous system (CNS), Nrg-ErbB ligand- receptor pairs …
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