Sökning: "loss of heterozygosity"

Visar resultat 16 - 20 av 60 avhandlingar innehållade orden loss of heterozygosity.

  1. 16. Basis for reclassification of nasopharyngeal carcinoma

    Författare :Jian-Yong Shao; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Nasopharyngeal carcinoma (NPC) shows broad differences in racial and geographical distribution, radiosensitivity, and a multifactorial etiology. This thesis aims to identify molecular biomarkers with potentially valuable for prognostic implications in NPC. LÄS MER

  3. 17. Delection mapping of human 3p in major epithelial types of cancer and fine localization of candidate tumor suppressor genes

    Författare :Jian Liu; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Tumor suppressor gene; epithelial carcinoma; human chromosome 3p;

    Sammanfattning : Allele loss and deletion mapping using microsatellite markers and the detection of homozygous deletions represented until now the most powerful method to localize potential TSGs. Loss of heterozygosity (LOH) involving several chromosome 3p regions accompanied by chromosome 3p deletions are detected in almost 100% of renal cell carcinoma (RCC), small (SCLCs) and more than 90% of non-small (NSCLC) cell lung cancers. LÄS MER

  4. 18. Growth of parathyroid glands : genetic and functional aspects

    Författare :Stiina Välimäki; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Parathyroid; primary hyperparathyroidism; secondary hyperparathyroidism; parathyroid carcinoma; chromosome 1; HDAC1; HRPT2; CASR; CAS; VDR; PTH; loss of heterozygosity; tumor suppressor gene; patch clamp; membrane potential; K channels;

    Sammanfattning : Ca2+ is an essential ion with a variety of important functions in the body and it is crucial that the Ca2+ levels are precisely regulated. One of the hormones regulating these processes is parathyroid hormone (PTH) secreted from the parathyroid glands. LÄS MER

  5. 19. Molecular studies of pancreatic cancer: Characterization of the transforming growth factor beta signaling pathway

    Författare :Tord Jonson; Avdelningen för klinisk genetik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; SMAD4; PCR; FISH; cytogenetics; chromosome; pancreatic cancer; TGFB signaling; cytogenetik; Genetik; Genetics;

    Sammanfattning : In the present thesis, genetic abnormalities in pancreatic cancer were studied, with special emphasis on alterations of components involved in the transforming growth factor beta (TGFB) signaling pathway. In the first study, fluorescence in situ hybridization and cytogenetic analyses revealed aberrations of chromosome 18 in all 13 pancreatic carcinoma cell lines studied, in particular frequent breaks close to the centromere of chromosome arm 18q. LÄS MER

  7. 20. Biological signature of HER2-positive breast cancer

    Författare :Breezy Malakkaran Lindqvist; Sten Wingren; Torbjörn Nilsson; Ingrid Hedenfalk; Örebro universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; HER2 breast cancer; SLC25A43; CpG island; DNA methylation; Homeobox genes; FOXO3a; FOXG1; Biomedicin; Biomedicine;

    Sammanfattning : Human epidermal growth factor receptor 2 (HER2) overexpressing breast cancers (HER2+ breast cancer) are associated with an aggressive disease course. This thesis is focused on improving the understanding of the biological signature of HER2+ breast cancer. LÄS MER