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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Cellular level of beta-galactoside alpha2,6-sialyltransferase in hepatocellular carcinoma and its role in the formation of tumor specific alpha-fetoprotein isoforms.

January 2001 (has links)
Chiu Hoi Shan Clarissa. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references (leaves 110-126). / Abstracts in English and Chinese. / Abstract in English --- p.i / Abstract in Chinese --- p.iii / Acknowledgement --- p.iv / List of Abbreviations --- p.v / List of Tables --- p.vi / List of Figures --- p.viii / Introduction and Objectives / Hepatocellular Carcinoma / Epidemiology --- p.1 / Sex and Age --- p.1 / Geographic distibution --- p.2 / Risk factors of HCC --- p.2 / Mortality from liver cancer --- p.4 / Treatment for HCC --- p.4 / Tumor markers --- p.5 / Alpha-fetoprotein / Structure --- p.5 / Physiological Functions of AFP --- p.7 / Re-expression of AFP in Adult --- p.7 / Re-expression of AFP in HCC --- p.8 / Isoforms of AFP --- p.8 / Specific AFP isoform in HCC --- p.9 / Sialic Acid --- p.11 / Sialyltransferase / "Galβ 1,4GlcnAc α2,6-sialyitransferase" --- p.12 / "Characterization of ST2,6Gal I" --- p.12 / "Expression of ST2,6Gal I" --- p.12 / "General features of ST2,6Gal I Activity" --- p.15 / Relationship Between AFP isoforms and ST2,6Gal in Fetal Mouse Model --- p.15 / "Change in ST2,6GaI I Activity in Transgenic Mouse Models of HCC" --- p.16 / "Study of Activity of ST2,6Gal I in Colon Carcinoma" --- p.16 / Objective of the Project --- p.18 / Chapter Chapter 1 --- Formation of Monosialyated AFP by Hepatoma Cells / Chapter 1.1 --- Introduction --- p.21 / Chapter 1.2 --- Materials and Methods --- p.23 / Chapter 1.3 --- Results / Chapter 1.3.1 --- AFP obtained from cell culture --- p.34 / Chapter 1.3.2 --- IEF for AFP in cell culture medium --- p.34 / Chapter 1.3.3 --- SDS-PAGE analysis of AFP --- p.34 / Chapter 1.3.4 --- Stability of AFP isoforms after secreted to cell culture medium --- p.39 / Chapter 1.3.5 --- Comparison of the AFP isoforms between liver tissues and serum --- p.38 / Chapter 1.4 --- Discussion / Chapter 1.4.1 --- Origin of the extracellular msAFP - in vitro Model --- p.43 / Chapter 1.4.2 --- Origin of circulating msAFP - in vivo Model --- p.44 / Chapter 1.5 --- Conclusion --- p.46 / Chapter Chapter 2 --- "Presence of msAFP in the serum of HCC patient is a Consequence of Decrease in the Activity of ST2, / Chapter 2.1 --- Introduction --- p.47 / Chapter 2.2 --- Materials and Methods --- p.49 / Chapter 2.3 --- Results / Chapter 2.3.1 --- Semi-quantitation of msAFP --- p.61 / Chapter 2.3.2 --- Evaluation of the ST2,6Gal I Assay --- p.65 / Chapter 2.3.3 --- "Measurements and comparisons of the activity of ST2,6Gal I in non-tumor and tumor tissue" --- p.65 / Chapter 2.3.4 --- "Evaluation of the RT-PCR ELISA for semi-quantitation and comparisons of ST2,6Gal I mRNA levels" --- p.75 / Chapter 2.3.5 --- "Semi-quantitation and comparisons of ST2,6Gal I mRNA levels in the non-tumor and tumor tissues" --- p.84 / Chapter 2.3.6 --- Correlations between the markers --- p.87 / Chapter 2.4 --- Discussion / Chapter 2.4.1 --- "Overproduction of AFP, a possible cause for increased msAFP formation" --- p.99 / Chapter 2.4.2 --- "Decrease of ST2,Gal I activity, a possible cause for increased msAFP formation" --- p.100 / Chapter 2.4.3 --- "ST2,6Gal I activity in tumor is not regulated at transcriptional level" --- p.102 / General Discussion / Origin of blood stream msAFP --- p.103 / Physiological Mechanism for the formation of msAFP in HCC --- p.104 / Regulation of ST2,6Gal I activity in HCC --- p.105 / "Comparison between the ST2,6GaI I activities in human HCC and Colon Cancer" --- p.107 / Conclusion and Future studies / Conclusion --- p.108 / Future studies --- p.109 / References --- p.110

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