Visar resultat 1 - 5 av 29 avhandlingar innehållade ordet CDK4.
Sammanfattning : Pancreatic endocrine tumors (PETs) may cause typical syndromes of hormone excess, or appear clinically non-functioning without hormonal symptoms. PETs occur sporadically, in association with the multiple endocrine neoplasia type 1 (MEN1) syndrome, or rarely the von Hippel-Lindau syndrome. LÄS MER
Sammanfattning : Cancer is a genetic disorder of somatic cells. Neoplastic transformation andmalignant progression may be a consequence of accumulated multiple genetic changes in acell. Astrocytic gliomas are the commonest brain tumors in humans. LÄS MER
Sammanfattning : The main objective of this thesis has been to investigate the involvement of the CDKN2A (p16INK4a and p14ARF) and related cell cycle regulatory genes in melanoma and other types of human cancer. The CDKN2A gene represents a unique locus in the entire human genome. LÄS MER
4. The cell cycle regulators p15, p16, p18 and p19 : functions and regulation during normal cell cycle and in multistep carcinogenesis
Sammanfattning : The tumor suppressor protein p16INK4a and its family members p15INK4b, p18INK4c and p19INK4d (the INK4 proteins) inhibit the cyclin-dependent kinases CDK4 and CDK6, which are key regulators of the retinoblastoma protein (pRb). pRb guards entry into the S phase of the mammalian cell division cycle (the cell cycle), a process evolved to ensure balanced cell proliferation. LÄS MER
Sammanfattning : Uncontrolled proliferation and invasion are two characteristics in tumour development and progression. Previous studies have shown that invading tumour cells in colorectal cancer have low proliferation in parallel to upregulation of the tumour suppressor p16. LÄS MER