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The role of polyglutamine oligomer in pathogenesis of polyglutamine diseases.

Wu, Chi Chung. / "September 2010." / Thesis (M.Phil.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (leaves 86-96). / Abstracts in English and Chinese. / Abstract --- p.i / Abstract (Chinese version) --- p.iii / Acknowledgments --- p.iv / List of Abbreviations --- p.v / List of Tables --- p.vii / List of Figures --- p.viii / Chapter 1. --- INTRODUCTION / Chapter 1.1. --- Neurodegenerative disorders 一 a brief overview --- p.1 / Chapter 1.2. --- Polyglutamine diseases --- p.1 / Chapter 1.3. --- Polyglutamine protein conformers and toxicity --- p.5 / Chapter 1.4. --- in vivo modeling of polyglutamine diseases in Drosophila / Chapter 1.4.1. --- GAL4/UAS transgene expression system in Drosophila --- p.13 / Chapter 1.4.2. --- Temporal control of transgene expression systemin Drosophila --- p.15 / Chapter 1.4.3. --- Drosophila as a model to study polyglutamine diseases --- p.16 / Chapter 1.5. --- in vitro polyglutamine diseases models --- p.19 / Chapter 1.6. --- Aim of study --- p.23 / Chapter 2. --- MATERIALS AND METHODS / Chapter 2.1. --- Drosophila culture and manipulation / Chapter 2.1.1. --- Drosophila culture --- p.25 / Chapter 2.1.2. --- Pseudopupil assay of adult retinal degeneration --- p.25 / Chapter 2.2. --- Sodium Dodecyl Sulfate-Polyacrylamide Gel Electrophoresis (SDS-PAGE) / Chapter 2.2.1. --- Protein extraction from adult Drosophila heads --- p.26 / Chapter 2.2.2. --- Preparation of SDS-polyacrylamide gel and electrophoresis --- p.27 / Chapter 2.2.3. --- Western blotting --- p.28 / Chapter 2.2.4. --- Immunodetection --- p.29 / Chapter 2.3. --- Solubilization of SDS-insoluble protein --- p.31 / Chapter 2.4. --- Filter retardation assay --- p.31 / Chapter 2.5. --- Immunoprecipitation --- p.32 / Chapter 2.6. --- Nucleocytoplasmic fractionation --- p.33 / Chapter 2.7. --- PCR cloning / Chapter 2.7.1 . --- Drosophila DNA preparation --- p.34 / Chapter 2.7.2. --- Construction of pGEX4T3-MJDflQ27/81 expression plasmid --- p.34 / Chapter 2.8. --- in vitro aggregation assay / Chapter 2.8.1. --- Expression and purification of GST-MJDAQ27/81 protein --- p.36 / Chapter 2.8.2. --- in vitro aggregation --- p.37 / Chapter 2.8.3. --- Native slot-blot --- p.38 / Chapter 2.9. --- Reagents and buffers / Chapter 2.9.1. --- Reagents for Drosophila culture --- p.39 / Chapter 2.9.2. --- Reagents for SDS-PAGE --- p.39 / Chapter 2.9.3. --- Reagents for filter retardation assay --- p.42 / Chapter 2.9.4. --- Reagents for immunoprecipitation --- p.43 / Chapter 2.9.5. --- Reagents for nucleocytoplasmic fractionation --- p.43 / Chapter 2.9.6. --- Reagents for PCR cloning --- p.44 / Chapter 2.9.7. --- Reagents for in vitro aggregation assay --- p.46 / Chapter 3. --- Establishment of a GAL80ts-mediated transgenic Drosophila model of Machado-Joseph Disease (MJD) / Chapter 3.1. --- Introduction --- p.48 / Chapter 3.2. --- Results / Chapter 3.2.1. --- GAL80ts-mediated expression of expanded full-length MJD protein caused progressive neuronal degenerationin Drosophila --- p.49 / Chapter 3.2.2. --- Detection of SDS-insoluble expanded full-length MJD protein and its correlation with neuronal degeneration / Chapter 3.2.2.1. --- Progressive neuronal degeneration is not mediated by progressive accumulation of expanded full-length MJD protein --- p.51 / Chapter 3.2.2.2. --- SDS-soluble expanded full-length MJD protein does not correlate with progressive neuronal degeneration --- p.53 / Chapter 3.2.2.3. --- Progressive accumulation of SDS-insoluble expanded full-length MJD protein correlate with progressive neuronal degeneration --- p.55 / Chapter 3.3. --- Discussion --- p.57 / Chapter 4. --- Detection of conformational changes of expanded full-length MJD protein and its association with neuronal degeneration / Chapter 4.1. --- Introduction --- p.60 / Chapter 4.2. --- Results / Chapter 4.2.1. --- Expanded full-length MJD protein underwent conformational changes from monomer to fibrils and such conformational changes correlated with neuronal degeneration --- p.61 / Chapter 4.2.2. --- Mechanistic studies of how conformational changes of expanded full-length MJD protein triggers neuronal degeneration / Chapter 4.2.2.1. --- Expanded full-length MJD protein gradually accumulated in the nucleus during the course of neurodegeneration --- p.62 / Chapter 4.2.2.2. --- Fibrillar expanded full-length MJD protein caused transcriptional dysregulation of endogenous Hsp70 gene --- p.66 / Chapter 4.2.3. --- Consolidation of the role of fibrillar expanded full-length MJD protein in neuronal degeneration --- p.67 / Chapter 4.3. --- Discussion --- p.72 / Chapter 5. --- Attempts to generate new conformation-specific antibody against recombinant expanded full-length MJD proteins / Chapter 5.1. --- Introduction --- p.75 / Chapter 5.2. --- Results / Chapter 5.2.1. --- Recombinant expanded full-length MJD protein underwent conformational changes during in vitro aggregation --- p.75 / Chapter 5.3. --- Discussion --- p.77 / Chapter 6. --- GENERAL DISCUSSION --- p.81 / Chapter 7. --- CONCLUSION --- p.84 / Chapter 8. --- REFERENCES --- p.86

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_327107
Date January 2010
ContributorsWu, Chi Chung., Chinese University of Hong Kong Graduate School. Division of Life Sciences.
Source SetsThe Chinese University of Hong Kong
LanguageEnglish, Chinese
Detected LanguageEnglish
TypeText, bibliography
Formatprint, viii, [4], 96 leaves : ill. (chiefly col.) ; 30 cm.
RightsUse of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/)

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