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Coupling of dextran T40 to recombinant trichosanthin created by site-directed mutagenesis: the effect on bioactivities, nephrotoxicity and immunogenicity of trichosanthin.

by Chan Wah Lun. / Thesis (Ph.D.)--Chinese University of Hong Kong, 1995. / Includes bibliographical references (leaves 252-260). / Acknowledgments --- p.i / Abstract --- p.ii / Contents --- p.vi / Naming of TCS mutants and modified TCS protein --- p.x / Abbreviations --- p.xi / Chapter Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Physical and chemical properties of Trichosanthin --- p.1 / Chapter 1.2 --- Biological activities of Trichosanthin --- p.3 / Chapter 1.3 --- Renal tubular reabsorption and nephrotoxicity of Trichosanthin --- p.10 / Chapter 1.4 --- Objective and strategies of study --- p.11 / Chapter Chapter 2 --- Materials and methods --- p.19 / Chapter 2.1 --- General Techniques --- p.19 / Chapter 2.2 --- Site directed mutagenesis of Trichosanthin --- p.21 / Chapter 2.3 --- DNA sequencing --- p.37 / Chapter 2.4 --- Overexpression of modified Trichosanthin in E. coli --- p.42 / Chapter 2.5 --- Purification of modified Trichosanthin --- p.43 / Chapter 2.6 --- Breaking of Disulphide bridge between modified TCS --- p.44 / Chapter 2.7 --- Coupling of DX T40 to modified Trichosanthin --- p.44 / Chapter 2.8 --- Biological activities of modified Trichosanthin and Dextran-modified trichosantin conjugates --- p.46 / Chapter 2.9 --- Immunogenicity of modified Trichosanthin and Dextran-trichosanthin conjugates --- p.50 / Chapter 2.10 --- Nephrotoxicity of Trichosanthin and Dextran-trichosanthin conjugates --- p.53 / Chapter Chapter 3 --- Construction of TCS mutants --- p.61 / Chapter 3.1 --- Introduction --- p.61 / Chapter 3.2 --- Method --- p.61 / Chapter 3.3 --- Results --- p.62 / Chapter 3.3.1 --- Construction of K173C mutant --- p.62 / Chapter 3.3.2 --- Construction of R29C mutant --- p.64 / Chapter 3.3.3 --- Construction of K173C R29C double mutant --- p.65 / Chapter 3.4 --- Discussion --- p.66 / Chapter Chapter 4 --- "Expression,Purification and Ribosome- inactivating activities of Modified Trichosanthin proteins" --- p.87 / Chapter 4.1 --- Introduction --- p.87 / Chapter 4.2 --- Method --- p.87 / Chapter 4.3 --- Results --- p.88 / Chapter 4.3.1 --- "Expression, purification and ribosome-inactivating activity of K173C" --- p.88 / Chapter 4.3.2 --- "Expression ,purification and ribosome-inactivating activity of R29C" --- p.89 / Chapter 4.3.3 --- "Expression, purification and ribosome-inactivating activity of K173C R29C" --- p.90 / Chapter 4.4 --- Discussion --- p.91 / Chapter Chapter 5 --- Coupling of Dextran T40 to modified Trichosanthin --- p.108 / Chapter 5.1 --- Introduction --- p.108 / Chapter 5.2 --- Method --- p.109 / Chapter 5.3 --- Results --- p.109 / Chapter 5.3.1 --- Coupling of R29C --- p.109 / Chapter 5.3.2 --- Coupling of K173C --- p.111 / Chapter 5.3.3 --- Coupling of R29CK173C --- p.111 / Chapter 5.4 --- Discussion --- p.111 / Chapter Chapter 6 --- Biological Activities of modified Trichosanthin and Dextran-modified trichosanthin conjugates --- p.128 / Chapter 6.1 --- Introduction --- p.128 / Chapter 6.2 --- Method --- p.128 / Chapter 6.3 --- Results --- p.130 / Chapter 6.3.1 --- In vivo Biological activity- Mid-term abortifacient activity --- p.130 / Chapter 6.3.2 --- In vitro biological activities / Chapter 6.3.2a --- Ribosome-inactivating activity --- p.131 / Chapter 6.3.2b --- Anti-tumour activity --- p.132 / Chapter 6.4 --- Discussion --- p.133 / Chapter Chapter 7 --- Immunogenicity of Dextran-modified trichosanthin conjugates --- p.156 / Chapter 7.1 --- Introduction --- p.156 / Chapter 7.2 --- Method --- p.157 / Chapter 7.3 --- Results / Chapter 7.3.1 --- Immunogenicity without denaturation of protein --- p.158 / Chapter 7.3.2 --- Immunogenicity with denaturation of protein --- p.161 / Chapter 7.4 --- Discussion --- p.162 / Chapter Chapter 8 --- Nephrotoxicity of Trichosanthin and Dextran-Trichosanthin conjugates --- p.199 / Chapter 8.1 --- Introduction --- p.200 / Chapter 8.2 --- Method --- p.202 / Chapter 8.3 --- Results --- p.202 / Chapter 8.3.1 --- Functional study on nephrotoxicity of Trichosanthin --- p.202 / Chapter 8.3.2 --- Morphological study on the nephrotoxicity of Trichosanthin --- p.203 / Chapter 8.3.3 --- The effect of coupling of Dextran T40 on the nephrotoxicity of Trichosanthin --- p.206 / Chapter 8.4 --- Discussion --- p.207 / Chapter Chapter 9 --- General Discussion --- p.244 / References --- p.252

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_318343
Date January 1995
ContributorsChan, Wah Lun., Chinese University of Hong Kong Graduate School. Division of Basic Medical Sciences.
PublisherChinese University of Hong Kong
Source SetsThe Chinese University of Hong Kong
LanguageEnglish
Detected LanguageEnglish
TypeText, bibliography
Formatprint, xiv, 260 leaves : ill. (some mounted 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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