Search for dissertations about: "mevalonate"

Showing result 6 - 10 of 29 swedish dissertations containing the word mevalonate.

  2. 6. Requirement for mevalonate-derived lipids in cell proliferation : a study of the role of polyisoprenoid alcohols

    Author : Johan Wejde; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Mevalonic acid constitutes a key intermediate in the biosynthesis of a number of isoprenoid products. These metabolites include cholesterol and sterol-derived molecules, but also a large number of non-sterol isoprene derivatives. READ MORE

  4. 7. In vitro studies on the biosynthesis and reduction of ubiquinone

    Author : Tomas Nordman; Karolinska Institutet; Karolinska Institutet; []
    Keywords : The mevalonate pathway; Ubiquinone; Ubiquinol; Lipoamide dehydrogenase; Thioredoxin reductase; Glutathione reductase; Selenium;

    Abstract : This thesis concerns the role of ubiquinone, the only endogenously synthesised lipid soluble antioxidant, in the cellular defence against peroxidation of proteins and lipids. The aims of the present investigations were to study the biosynthesis of ubiquinone in two different organelle fractions, i.e. READ MORE

  5. 8. Studies on the regulatory roles of cholesterol and bile acids

    Author : Charlotte Murphy; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Cholesterol; cholic acid; bile acids; cholesterol homeostasis; squalene epoxidase; mevalonate kinase; cob I alamin adenotransferase; SREBP; NF-Y;

    Abstract : Cholesterol is essential for normal growth and development in mammals. However, excess cholesterol can be harmful leading to diseases such as atherosclerosis and gallstones. Once formed the ring structure of cholesterol cannot be catabolised by the body and must therefore be converted to other compounds for excretion. READ MORE

  6. 9. Studies on N-linked glycosylation in proliferation and viability of normal and tumor cells in vitro

    Author : Magdalena Carlberg; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Apoptosis; DNA synthesis; IGF-1 receptor; HMG-CoA reductase; lovastatin; mevalonate; N-linked glycosylation; PDGF; SV40-transformation; tumor; tunicamycin.;

    Abstract : A number of studies suggest a critical role of N-linked glycosylation for cellular proliferation. In addition, many transformed and tumor cells have an altered 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase activity and an increased N-linked glycosylation. READ MORE

  7. 10. High-throughput screening using multicellular tumor spheroids to reveal and exploit tumor-specific vulnerabilities

    Author : Wojciech Senkowski; Mårten Fryknäs; Rolf Larsson; Peter Nygren; Mats Gustafsson; Krister Wennerberg; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; spheroids; high-throughput screening; nitazoxanide; OXPHOS; gene expression profiling; statins; drug repositioning; 3D cell culture; quiescent cells; Medical Science; Medicinsk vetenskap;

    Abstract : High-throughput drug screening (HTS) in live cells is often a vital part of the preclinical anticancer drug discovery process. So far, two-dimensional (2D) monolayer cell cultures have been the most prevalent model in HTS endeavors. However, 2D cell cultures often fail to recapitulate the complex microenvironments of in vivo tumors. READ MORE