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Mechanism of metallothionein gene regulation involving metal responsive element binding transcription factor-1 and its short-form variant in tilapia.

Au, Yee Man Candy. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2008. / Includes bibliographical references (leaves 128-144). / Abstracts in English and Chinese. / Abstract --- p.i / 摘要 --- p.iii / Acknowledgements --- p.v / List of Tables --- p.x / List of Figures --- p.xi / List of Abbreviations --- p.xiii / Chapter 1. --- Chapter One Introduction / Chapter 1.1 --- Homeostasis and detoxification of metal ions --- p.1 / Chapter 1.2 --- Biochemistry of metallothionein --- p.3 / Chapter 1.2.1 --- Structure of metallothionein --- p.4 / Chapter 1.2.2 --- Isoforms of metallothionein --- p.5 / Chapter 1.2.3 --- Roles of metallothionein --- p.6 / Chapter 1.2.4 --- Structure of metallothionein gene --- p.9 / Chapter 1.2.5 --- Metal responsive element (MRE) --- p.10 / Chapter 1.2.6 --- Regulation of MT gene --- p.11 / Chapter 1.3 --- Metal responsive element-binding transcription factor 1 (MTF-1) --- p.16 / Chapter 1.3.1 --- Structure of MTF-1 --- p.16 / Chapter 1.3.2 --- Target genes of MTF-1 --- p.18 / Chapter 1.4 --- Teleost MT and MTF-1 --- p.20 / Chapter 1.5 --- Tilapia --- p.26 / Chapter 1.6 --- Tilapia MT and MTF-1 --- p.26 / Chapter 1.7 --- Aims of study --- p.30 / Chapter 2. --- Chapter Two Materials and Methods / Chapter 2.1 --- Quantification of MTF-1 isoforms and MT mRNA levels in tilapia and Hepa-Tl cells by real-time PCR --- p.32 / Chapter 2.1.1 --- Heavy metal exposure on tilapia --- p.32 / Chapter 2.1.1.1 --- Animals --- p.32 / Chapter 2.1.1.2 --- Heavy metal exposure --- p.32 / Chapter 2.1.1.3 --- Total RNA extraction --- p.33 / Chapter 2.1.1.4 --- Reverse Transcription --- p.35 / Chapter 2.1.2 --- Heavy metal exposure on Hepa-Tl cells --- p.36 / Chapter 2.1.2.1 --- Cell Culture --- p.36 / Chapter 2.1.2.2 --- Metal treatment on Hepa-Tl cells --- p.37 / Chapter 2.1.3 --- SYBR green --- p.39 / Chapter 2.1.3.1 --- Primer Design --- p.39 / Chapter 2.1.3.2 --- Validation of cycling condition --- p.41 / Chapter 2.1.3.3 --- Determination of relative amount of target gene present in the samples --- p.43 / Chapter 2.1.3.4 --- Statistical analysis --- p.44 / Chapter 2.1.4 --- TaqMan probes --- p.44 / Chapter 2.1.4.1 --- Primer Design --- p.44 / Chapter 2.1.4.2 --- Validation of cycling condition --- p.45 / Chapter 2.2 --- Localization study of MTF-1 isoforms --- p.46 / Chapter 2.2.1 --- Amplification of the full length tilapia MTF-1 isoforms --- p.46 / Chapter 2.2.2 --- Preparation of Escherichia coli competent cells --- p.48 / Chapter 2.2.3 --- Transformation --- p.49 / Chapter 2.2.4 --- Confirmation of the insert of the ligation products --- p.50 / Chapter 2.2.5 --- Cloning of MTF-1-L and MTF-1-S gene into phrGFPII-1 vector --- p.51 / Chapter 2.2.6 --- Transient transfection of plasmids to Hepa-Tl cells --- p.54 / Chapter 2.2.7 --- Staining of the nucleus by Hoechst 33342 --- p.55 / Chapter 2.2.8 --- Metal treatment on Hepa-Tl cells --- p.55 / Chapter 2.3 --- Electrophoretic mobility shift assay (EMSA) --- p.56 / Chapter 2.3.1 --- Preparation of Hepa-Tl whole-cell protein extract --- p.56 / Chapter 2.3.2 --- In vitro transcription/translation of tilapia MTF-1 isoforms --- p.57 / Chapter 2.3.3 --- Annealing of the tiMREg oligonucleotides --- p.58 / Chapter 2.3.4 --- Labeling of the annealed tiMREg oligonucleotides --- p.58 / Chapter 2.3.5 --- Electrophoretic mobility shift assay --- p.59 / Chapter 3. --- Chapter Three Results / Chapter 3.1 --- Quantification of MTF-1 isoforms and MT mRNA levels in tilapia and Hepa-Tl cells by real-time PCR --- p.62 / Chapter 3.1.1 --- Validation of primers for real-time PCR --- p.62 / Chapter 3.1.2 --- Tissue distribution of MTF-1 isoforms in tilapia and Hepa-Tl cell-line --- p.63 / Chapter 3.1.3 --- Effect of metal treatment on MTF-1 isoforms and MT gene expression level in different tissues of tilapia and Hepa-Tl cell-line --- p.68 / Chapter 3.2 --- Localization study of MTF-1 isoforms --- p.82 / Chapter 3.2.1 --- Cloning of MTF-1 isoforms into phrGFPII-1 vector --- p.82 / Chapter 3.2.2 --- Transient transfection of phrGFPII-1 plasmids to Hepa-Tl cells --- p.82 / Chapter 3.3 --- Electrophoretic mobility shift assay (EMSA) --- p.96 / Chapter 4. --- Chapter Four Discussion / Chapter 4.1 --- Tissue distribution of MTF-1 isoforms --- p.104 / Chapter 4.2 --- Effect of metal stress on the mRNA expression level of MT and MTF-1 isoforms --- p.106 / Chapter 4.3 --- In vitro study of the localization of the MTF-1 isoforms --- p.114 / Chapter 4.4 --- DNA binding of MTF-1 synthesized by in vitro transcription/translation method --- p.121 / Chapter 4.5 --- Conclusion --- p.125 / Chapter 5. --- REFERENCES --- p.128

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_326527
Date January 2008
ContributorsAu, Yee Man Candy., Chinese University of Hong Kong Graduate School. Division of Biochemistry.
Source SetsThe Chinese University of Hong Kong
LanguageEnglish, Chinese
Detected LanguageEnglish
TypeText, bibliography
Formatprint, xiv, 144 leaves : ill. (some 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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