Search for dissertations about: "Tumour biology"

Showing result 11 - 15 of 139 swedish dissertations containing the words Tumour biology.

  2. 11. Pancreatic Endocrine Tumourigenesis : Genes of potential importance

    Author : Térèse A. Johansson; Barbro Eriksson; Britt Skogseid; Gunnar Westin; Martin Bäckdahl; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pancreatic endocrine tumour; Multiple endocrine neoplasia type 1; Tumourigenesis; Notch signalling; Notch1; Hes1; Neurog3; Neurod1; Men1; Ascl1; Pou3f4; Pdx1; Rpl10; Dlk1; Dkk1; Tph1; menin; Tumour biology; Tumörbiologi;

    Abstract : Understanding signalling pathways that control pancreatic endocrine tumour (PET) development and proliferation may reveal novel targets for therapeutic intervention. The pathogenesis for sporadic and hereditary PETs, apart from mutations of the MEN1 and VHL tumour suppressor genes, is still elusive. READ MORE

  4. 12. Oxidized nucleotides as a predictor of radiation sensitivity

    Author : Ali Pour Khavari; Siamak Haghdoost; Marie Öhman; Anders Nilsson; Bo Stenerlöw; Neus Visa; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; 8-oxo-dG; Radiation; Sensitivity; Oxidized; Nucleotides; ROS; NOS; molekylär biovetenskap; Molecular Bioscience;

    Abstract : The direct and indirect effects of IR can lead to DNA damage and activation of DNA repair. The indirect effects of ionizing radiation mediated by reactive oxygen species (ROS) which produced through radiolysis of water and if not taken care of by the antioxidant system, can also give rise to oxidative stress. READ MORE

  5. 13. Extracellular Matrix and Connective Tissue Cells of the Tumor Microenvironment

    Author : Tomas Friman; Christian Sundberg; Kristofer Rubin; Ulf Eriksson; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biochemistry; Biokemi; Morphology; cell biology; pathology; Morfologi; cellbiologi; patologi; Tumour biology; Tumörbiologi; Medical Science; Medicinsk vetenskap;

    Abstract : In addition to malignant cells, solid tumors comprise supporting stromal tissue that consists of extra cellular matrix (ECM), connective tissue cells, inflammatory cells and blood vessels. The stromal compartment and the malignant cells together shape the tumor microenvironment that in turn determines tumor progression and efficacy of anti-tumor treatments. READ MORE

  6. 14. Studies of Mesenchymal Progenitor Cells and Tumour Growth, Integrins and Matrix Metalloproteinases

    Author : Lars Bryngelsson Ohlsson; Immunologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Immunology; Tumour inhibition; cancer; onkologi; cancerology; Cytologi; oncology; Cytology; Biologi; Biology; Medicin människa och djur ; Medicine human and vertebrates ; Integrin matrix metalloproteinase interaction; Immunologi; serologi; transplantation; Proteins; enzymology; Proteiner; enzymologi; serology; Mesenchumal progenitor cells;

    Abstract : In this thesis we characterize the effect of mesenchymal progenitor cells (MPCs) on tumour growth, and show that MPCs can have inhibitory effects on tumour development. We developed a method to subcutaneously transplant tumour cells, cultured in vitro in a pre-formed gelatin matrix, that made it possible to study the early phases of tumour development. READ MORE

  7. 15. Somatostatin Receptor Expression and Biological Functions in Endocrine Pancreatic Cells

    Author : Eva Ludvigsen; Stellan Sandler; Eva Tiensuu Janson; Mats Stridsberg; Frank Sundler; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cell biology; somatostatin; somatostatin receptors; somatostatin analogues; NOD mouse; type 1 diabetes; pancreatic islets; BON-1 cells; Cellbiologi; Cell biology; Cellbiologi;

    Abstract : Type 1 diabetes is resulting from the selective destruction of insulin-producing beta-cells within the pancreatic islets. Somatostatin acts as an inhibitor of hormone secretion through specific receptors (sst1-5). READ MORE