Sökning: "hypoxia-inducible factor 1α"

Visar resultat 1 - 5 av 24 avhandlingar innehållade orden hypoxia-inducible factor 1α.

  1. 1. Hypoxia inducible factor 1 alpha : dependent and independent regulation of hematopoietic stem cells and leukemia

    Författare :Camilla Halvarsson; Jan-Ingvar Jönsson; Mikael Sigvardsson; Kamil Kranc; Linköpings universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : This thesis has studied the role of low oxygen levels, or hypoxia, in hematopoietic stem cells (HSCs) and how, at the molecular level, it regulates stem cell maintenance and protects against oxidative stress induced by reactive oxygen species (ROS). HSCs reside within the bone marrow in specific niches created by a unique vascularized environment, which is suggested to be hypoxic and crucial for HSCs by maintaining a quiescent state of cell cycle and by redirecting metabolism away from the mitochondria to glycolysis. LÄS MER

  3. 2. Hypoxia inducible factor-1α in renal cell carcinoma

    Författare :Anders Lidgren; Börje Ljungberg; Torgny Rasmuson; Kjell Grankvist; Anders Bergh; Per-Uno Malmström; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; renal cell carcinoma; hypoxia; RT-PCR; angiogenesis; western blot; tissue microarray; protein; mRNA; HIF-1 alpha; GLUT-1; survival; Urology and andrology; Urologi och andrologi;

    Sammanfattning : Hypoxia Inducible Factor-1α in Renal Cell Carcinoma Departments of Surgical and Perioperative Sciences, Urology and Andrology; Radiation Sciences, Oncology; Medical Biosciences, Pathology; and Medical Biosciences, Clinical Chemistry, Umeå University, Umeå, Sweden Background: Renal cell carcinoma (RCC) accounts for approximately 2-3% of all human cancers. A distinguished feature of RCC is vascularisation and among the three dominating RCC types conventional RCC (cRCC) generally is more vascularised than papillary RCC (pRCC) and chromophobe RCC (chRCC). LÄS MER

  4. 3. Effects of Ischaemia on the Neuroretina and Retinal Blood Vessels

    Författare :Bodil Gesslein; Lund Oftalmologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; protein kinase C; tumor necrosis factor; mitogen-activated protein kinases; pig; blood vessels; mfERG; Retinal ischaemia; vascular endothelial growth factor; hypoxia-inducible factor;

    Sammanfattning : Identification of the intracellular signal transduction pathways activated in retinal ischaemia may be important in revealing novel pharmacological targets. The retinal blood vessels are key organs in circulatory failure, and in this work the retinal vasculature was therefore examined separately from the neuroretina. LÄS MER

  5. 4. Hypoxia and Hypoxia-Inducible Factors in Normal and Malignant Breast Epithelium

    Författare :Karolina Helczynska; Institutionen för translationell medicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Differentiation; Hypoxia; Breast cancer; Breast; HiF-1; HiF-2; 3D-cultures; prognosis;

    Sammanfattning : Breast cancer treatment is based on tumor and patient related factors such as tumor stage, grade, hormonal status, HER2 status, patient age, and family history to name a few. It is today widely acknowledged that hypoxia and hypoxia-inducible factors (HIF:s) contribute to tumor progression. LÄS MER

  7. 5. New Roles of Filamins in Cell Signaling, Transcription and Organ Development

    Författare :Xianghua Zhou; Göteborgs universitet; []
    Nyckelord :filamins; cell movement; hypoxia-inducible factor 1; proto-oncogene proteins c-met; mice; knockout; F-actin-binding proteins; integrins; GTB phosphohydrolases; genetic diseases; inborn; vascular endothelial cell growth factor A; Smad2 protein; hepatocyte growth factor; cartilage; osteogenesis; neovascularization; neoplasm metastasis;

    Sammanfattning : Filamins are large actin-binding proteins that stabilize delicate three-dimensional actin networks and link them to cellular membranes. They integrate cell architectural and signaling functions and are essential for cell locomotion and development. LÄS MER