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Intracellular signaling mechanisms for the induction of Th cytokines and chemokines from costimulated T helper lymphocytes activated by IL-18 and IL-25.

by Li Pok Wai. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2006. / Includes bibliographical references (leaves 94-114). / Abstracts in English and Chinese. / Acknowledgements --- p.I / Abbreviations --- p.II / Abstract --- p.V / 摘要 --- p.VIII / Publications --- p.XI / Table of contents --- p.XII / Chapter Chapter 1 --- Introduction / Chapter 1.1 --- Human Th lymphocytes and their immunopathogenic roles --- p.1 / Chapter 1.1.1 --- Characteristics of Th lymphocytes --- p.1 / Chapter 1.1.2 --- Migration and activation --- p.1 / Chapter 1.1.3 --- Th cell differentiation --- p.2 / Chapter 1.1.4 --- Pathological roles --- p.4 / Chapter 1.2 --- Cytokines as modulator in Th lymphocyte activation --- p.6 / Chapter 1.2.1 --- IL-18 --- p.6 / Chapter 1.2.2 --- IL-25 --- p.7 / Chapter 1.3 --- Surface marker expression in Th lymphocytes --- p.8 / Chapter 1.3.1 --- Adhesion molecules --- p.8 / Chapter 1.3.2 --- Cytokine and chemokine receptors --- p.9 / Chapter 1.3.3 --- Costimulatory molecules --- p.11 / Chapter 1.4 --- Cytokine and chemokine release from Th lymphocytes / Chapter 1.4.1 --- Thl cytokines --- p.13 / Chapter 1.4.2 --- Th2 cytokines --- p.14 / Chapter 1.4.3 --- Chemokines --- p.15 / Chapter 1.5 --- Intracellular signaling pathways in Th lymphocytes --- p.19 / Chapter 1.5.1 --- p38 MAPK pathway --- p.19 / Chapter 1.5.2 --- ERK pathway --- p.20 / Chapter 1.5.3 --- JNK pathway --- p.20 / Chapter 1.5.4 --- NF- k B pathway --- p.21 / Chapter 1.6 --- Pharmacological intervention of signaling pathways --- p.22 / Chapter 1.7 --- Aims and scope of the study --- p.24 / Chapter Chapter 2 --- Materials and Methods / Chapter 2.1 --- Materials --- p.26 / Chapter 2.1.1 --- Blood samples --- p.26 / Chapter 2.1.2 --- Media and reagents for cell culture --- p.26 / Chapter 2.1.3 --- Antibodies for costimulation of Th cells --- p.28 / Chapter 2.1.4 --- Recombinant human cytokines --- p.28 / Chapter 2.1.5 --- "Signaling pathway inhibitors: SB203580, PD98035, SP600125 and BAY117082" --- p.28 / Chapter 2.1.6 --- Monoclonal antibodies and reagents for immunofluorescent staining --- p.29 / Chapter 2.1.7 --- Reagents and buffers for the purification of human Th lymphocytes --- p.31 / Chapter 2.1.8 --- Reagents and buffers for protein array --- p.32 / Chapter 2.1.9 --- Reagents and buffers for Thl/2 cytokine and chemokine detection --- p.32 / Chapter 2.1.10 --- Reagents and buffers for protein extraction --- p.32 / Chapter 2.1.11 --- Reagents and buffers for SDS-polyacrylamide gel electrophoresis --- p.33 / Chapter 2.1.12 --- Reagents and buffers for Western blot analysis --- p.35 / Chapter 2.1.13 --- Reagents and buffers for non-radioactive electromobility shift assay (EMSA) --- p.37 / Chapter 2.1.14 --- Reagents and buffers for cell viability and proliferation assay --- p.39 / Chapter 2.1.15 --- Reagent kit for endotoxin level assay --- p.39 / Chapter 2.1.16 --- Other reagent kits --- p.40 / Chapter 2.2 --- Methods --- p.41 / Chapter 2.2.1 --- Purification of human Th lymphocytes and cell culture --- p.41 / Chapter 2.2.2 --- Measurement of total and allergen-specific IgE concentrations --- p.41 / Chapter 2.2.3 --- Immunophenotyping of cells by flow cytometry --- p.42 / Chapter 2.2.4 --- Protein array --- p.42 / Chapter 2.2.5 --- Quantitative analysis of cytokines and chemokines by flow cytometry --- p.43 / Chapter 2.2.6 --- Quantitative analysis of IFN-γ by ELISA --- p.43 / Chapter 2.2.7 --- SDS-PAGE --- p.44 / Chapter 2.2.8 --- Western blot analysis --- p.44 / Chapter 2.2.9 --- EMSA / gel shift assay --- p.45 / Chapter 2.2.10 --- MTT assay --- p.46 / Chapter 2.2.11 --- Cell proliferation assay --- p.46 / Chapter 2.2.12 --- Endotoxin level assay --- p.47 / Chapter 2.2.13 --- Statistical analysis --- p.47 / Chapter Chapter 3 --- Results / Chapter 3.1 --- Effects of IL-18 and IL-25 on the induction of Thl/2 cytokine and chemokine release from costimulated Th lymphocytes --- p.48 / Chapter 3.1.1 --- IL-18 and IL-25 could up-regulate the protein expression of cytokines and chemokines --- p.48 / Chapter 3.1.2 --- IL-18 but not IL-25 induced the release of IFN-γ and TNF-α --- p.48 / Chapter 3.1.3 --- "IL-18 and IL-25 induced the release of IL-5, IL-6 and IL-10" --- p.49 / Chapter 3.1.4 --- "IL-18 induced the release of IP-10, MIG, RANTES, MlP-lα and IL-8" --- p.49 / Chapter 3.1.5 --- "IL-25 induced the release of IP-10, MIG and RANTES" --- p.49 / Chapter 3.1.6 --- IL-18 and IL-25 did not enhance the proliferation of costimulated Th cells --- p.49 / Chapter 3.2 --- "Effects of IL-18 and IL-25 on the activation of p38 MAPK, ERK, JNK and NF- k B" --- p.58 / Chapter 3.2.1 --- "Costimulation with or without IL-18 and IL-25 could activate p38 MAPK, ERK and JNK" --- p.58 / Chapter 3.2.2 --- Costimulation with or without IL-18 and IL-25 could induce NF- k B activity --- p.58 / Chapter 3.3 --- Effects of inhibitors on the IL-18 and IL-25-induced release of Thl/2 cytokines and chemokines --- p.63 / Chapter 3.3.1 --- "Optimal dosage of SB203580, PD98035, SP600125 and BAY117082" --- p.63 / Chapter 3.3.2 --- "SB203580, PD98035 and BAY 117082 but not SP600125 suppressed the IL-18 and IL-25-induced release of Thl/2 cytokines" --- p.63 / Chapter 3.3.3 --- SP600125 suppressed the IL-18 and IL-25-induced release of chemokines --- p.64 / Chapter 3.4 --- Effects of inhibitors on the cell surface expression of IL-18 and IL-25 receptors --- p.72 / Chapter 3.4.1 --- "SB203580, PD98035, BAY 117082 but not SP600125 could suppress IL-18 receptor on costimulated Th cells" --- p.72 / Chapter 3.4.2 --- "SB203580, SP600125, PD98035 and BAY 117082 could not suppress IL-25 receptor on costimulated Th cells" --- p.72 / Chapter 3.5 --- Effects of costimulation on the expression of cell surface markers on Th lymphocytes --- p.75 / Chapter Chapter 4 --- Discussion / Chapter 4.1 --- Effects of IL-18 and IL-25 on the release of Th1/2 cytokines and chemokines --- p.80 / Chapter 4.2 --- "Regulation of Thl/2 cytokines and chemokines through intracellular p38 MAPK, ERK, JNKand NF-kB" --- p.83 / Chapter 4.3 --- Effects of costimulation on different surface markers in Th cells --- p.87 / Chapter 4.4 --- Concluding remarks and future perspectives --- p.90 / References --- p.94

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_325637
Date January 2006
ContributorsLi, Pok Wai., Chinese University of Hong Kong Graduate School. Division of Chemical Pathology.
Source SetsThe Chinese University of Hong Kong
LanguageEnglish, Chinese
Detected LanguageEnglish
TypeText, bibliography
Formatprint, xv, 114 leaves : ill. ; 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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