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Showing result 1 - 5 of 438 swedish dissertations matching the above criteria.

  2. 1. Molecular mechanisms in cervical carcinogenesis : Studies of clonality, somatic genetic alterations and human papillomavirus variants in cervical pre-invasive and invasive cancer

    Author : Zhongmin Guo; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Genetics; cervical cancer; CIN; clonality; X-chromosome inactivation; LOH; HPV; chromosome 3p; chromosome 6; Genetik; Clinical genetics; Klinisk genetik; Pathology; patologi;

    Abstract : Cervical cancer derives from a series of pre-invasive cervical neoplastic lesions termed CIN I-III (Cervical Intraepithelial Neoplasia) via typical multiple-step processes. In contrast to premalignant disorders in other organs, different degrees of CIN possess a distinct biological behaviour where a proportion spontaneously regress or persist, whereas some progress to invasive cancer. READ MORE

  4. 2. Genetic studies of neuroblastoma with emphasis on the apoptotic pathway

    Author : Frida Abel; Göteborgs universitet; []
    Keywords : child; cancer; neuroectodermal; neural crest; loss of heterozygosity; LOH; bcl-2; mcl-1; apaf-1; caspase-2; caspase-3; caspase-9; PIN; DLC-1; caspase-2;

    Abstract : Aim: The objective of this thesis was to find genes and chromosomal regions involved in neuroblastoma (NB) tumor progression. NB is a childhood tumor of the sympathetic nervous system that generally occurs spontaneously. READ MORE

  5. 3. Characterization of chromosome abnormalities

    Author : Anna Lindstrand; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Inborn chromosome abnormalities are a frequent cause of mental retardation and birth defects. Apart from aberrations that are visible in the microscope, a number of submicroscopic alterations have recently been discovered, and all of these chromosome changes are in fact the result of DNA alterations at the molecular level. READ MORE

  6. 4. Chromosomal Instability and Genomic Amplification in Bone and Soft Tissue Tumours

    Author : David Gisselsson Nord; Avdelningen för klinisk genetik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; nuclear atypia; kinetochore; anaphase bridge; p53; breakage-fusion-bridge cycle; TP53; HMGIC; MDM2; mitotic instability; genomic instability; FISH; osteosarcoma; liposarcoma; amplification; tumour; chromosome; cytogenetics; Clinical genetics; Klinisk genetik;

    Abstract : Acquired genetic abnormalities are found in all types of malignant tumours and may contribute to neoplastic processes by altering protein structure or dosage. Many bone and soft tissue tumours (BSTT) are characterised by complex patterns of chromosome changes, including extensive intratumour heterogeneity and amplification of DNA sequences. READ MORE

  7. 5. Identification and characterization of candidate genes for neuroblastoma development

    Author : Cecilia Krona; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; cancer; tumor; child; embryonal; neural crest; neuroblastoma; chromosome 1; 1p36; mutation; expression; tumor suppressor gene; UBE4B; KIF1B; PGD; CORT; DFFA; PEX14; ICAT; CASP9; ENO1; MBP1; APITD1; PHOX2B;

    Abstract : Neuroblastoma (NB) is the most common tumor during infancy. It arises from undifferentiated cells in the sympathetic nervous system and is characterized by both clinical and genetic heterogeneity. One of the features of NBs with unfavorable outcome is loss on distal chromosome 1p. READ MORE