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Mechanisms underlying chemopreventive effect of celecoxib in gastric carcinogenesis.

Chu Wai Kit. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2006. / Includes bibliographical references (leaves 87-96). / Abstracts in English and Chinese. / Acknowledgments --- p.ii / Publication --- p.iii / List of Abbreviations --- p.iv / List of Tables --- p.v / List of Figures --- p.vi / Abstract --- p.vii / 摘要 --- p.x / Table of Contents --- p.xii / Chapter Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Epidemiology of gastric cancer --- p.1 / Chapter 1.2 --- Risk factors associated with gastric cancer --- p.7 / Chapter 1.3 --- Prevention of Gastric Cancer --- p.9 / Chapter 1.4 --- H. pylori eradication and gastric cancer development --- p.11 / Chapter 1.5 --- Non-steroidal anti-inflammatory drugs and gastric cancer prevention --- p.13 / Chapter 1.6 --- COX-2 independent pathway --- p.14 / Chapter 1.7 --- Animal model of gastric cancer --- p.15 / Chapter 1.8 --- Microarray system --- p.16 / Chapter 1.9 --- Hypothesis --- p.18 / Chapter 1.10 --- Aim of study --- p.19 / Chapter Chapter 2 --- Chemoprevention of gastric cancer by celecoxib --- p.20 / Chapter 2.1 --- Introduction --- p.20 / Chapter 2.2 --- Material and Methods --- p.22 / Chapter 2.2.1 --- Animals --- p.22 / Chapter 2.2.2 --- Chemicals --- p.22 / Chapter 2.2.3 --- Study design --- p.23 / Chapter 2.2.4 --- Cell Culture --- p.24 / Chapter 2.2.5 --- Celecoxib treatment --- p.24 / Chapter 2.2.6 --- Cell proliferation assay --- p.25 / Chapter 2.3 --- Results --- p.26 / Chapter 2.3.1 --- Chemoprevention of gastric cancer by celecoxib in rats --- p.26 / Chapter 2.3.2 --- Effects of celecoxib on growth of human gastric cancer cells --- p.29 / Chapter 2.4 --- Discussion --- p.30 / Chapter 2.4.1 --- MNNG induced gastric cancer effectively --- p.30 / Chapter 2.4.2 --- Celecoxib significantly suppressed gastric carcinogenesis in rats --- p.31 / Chapter 2.4.3 --- Celecoxib inhibited the growth of MKN 45 in a concentration-dependent manner --- p.31 / Chapter 2.4.4 --- Celecoxib may exert its anti-tumor property through COX independent pathway --- p.32 / Chapter Chapter 3 --- Gene expression profiles of celecoxib treated rat gastric tumor and human gastric cells --- p.34 / Chapter 3.1 --- Introduction --- p.34 / Chapter 3.2 --- Material and Methods --- p.34 / Chapter 3.2.1 --- RNA extraction --- p.34 / Chapter 3.2.2 --- Target preparation and Array hybridization --- p.35 / Chapter 3.2.3 --- Post-hybridization processing and Scanning --- p.36 / Chapter 3.2.4 --- Microarray data analysis --- p.36 / Chapter 3.2.5 --- Quantitative RT-PCR --- p.37 / Chapter 3.3 --- Results --- p.39 / Chapter 3.3.1 --- Gene expression profiles of rat gastric tumors --- p.39 / Chapter 3.3.1.1 --- Genes differentially expressed in MNNG induced gastric tumors --- p.39 / Chapter 3.3.1.2 --- Genes differentially expressed in celecoxib treated group --- p.42 / Chapter 3.3.1.3 --- Mechanisms underlying chemoprevention of celecoxib --- p.43 / Chapter 3.3.2 --- Verification of gene expression by quantitative RT-PCR --- p.55 / Chapter 3.3.3 --- Confirmation of the gene expression profiles in human by quantitative RT-PCR --- p.59 / Chapter 3.4 --- Discussions --- p.63 / Chapter Chapter 4 --- Effects of celecoxib on Akt pathway in gastric cancer cells --- p.68 / Chapter 4.1 --- Introduction --- p.68 / Chapter 4.2 --- Material and methods --- p.72 / Chapter 4.2.1 --- Protein extraction --- p.72 / Chapter 4.2.2 --- Western blotting --- p.72 / Chapter 4.3 --- Results --- p.74 / Chapter 4.3.1 --- Expression of the Akt pathway after treatment with celecoxib --- p.74 / Chapter 4.4 --- Discussions --- p.78 / Chapter Chapter 5 --- Conclusion --- p.82 / References --- p.87

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_325625
Date January 2006
ContributorsChu, Wai Kit., Chinese University of Hong Kong Graduate School. Division of Medical Sciences.
Source SetsThe Chinese University of Hong Kong
LanguageEnglish, Chinese
Detected LanguageEnglish
TypeText, bibliography
Formatprint, xiv, 96 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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