Search for dissertations about: "β cell survival"

Showing result 1 - 5 of 115 swedish dissertations containing the words β cell survival.

2. 1. In vitro Studies of β-cell Death and Survival. Modulation by Adenoviral Vectors and Bcl-2 Overexpression

   Author : Andreea Roxana Barbu; Nils Welsh; Decio Eiziric; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cell biology; β-cell; cytokine; mitochondrial membrane potential; Bcl-2; Adenoviral vector; Adenovirus; IFN-α; Diabetes; Cellbiologi; Cell biology; Cellbiologi;

   Abstract : Type 1 diabetes is a multifactorial disease resulting from the selective destruction of insulin-producing β-cells within the pancreatic islets of Langerhans. The mechanisms of β-cell death are not fully understood but cytokines are important mediators of this process. READ MORE

4. 2. The Tyrosine Kinase GTK : Signal Transduction and Biological Function

   Author : Cecilia Annerén; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cell biology; Protein tyrosine kinases; GTK; SHB; proliferation; survival; differentiation; β cells; pancreatectomy; cytokines; diabetes; PC12 cells; NGF; streptozotocin; focal adhesion kinase; RAP1; Cellbiologi; Cell biology; Cellbiologi; medicinsk cellbiologi; Medical Cell Biology;

   Abstract : Protein tyrosine kinases play an important role in the regulation of various cellular processes such asgrowth, differentiation and survival. GTK, a novel SRC-like cytoplasmic tyrosine kinase, was recently cloned from a mouse insulinoma cell line and the present work was conducted in order to find a biological function of GTK in insulin producing and neuronal cells. READ MORE

5. 3. TGF-beta signaling in cancer

   Author : Erik Johansson; Göteborgs universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TGF-β; proliferation; cancer; tumor suppressor; diffuse-type gastric carcinoma; neuroblastoma; nuclear receptor TLX; cancer stem cell; angiogenesis; ABCG2; VHL; HIF2α; hypoxia; Smad3;

   Abstract : Transforming Growth Factor Beta (TGF-β) is a cytokine regulating a wide range of cellular processes such as proliferation, differentiation, and migration. At the early stages of cancer development TGF-β functions as a tumor suppressor, mainly due to its inhibitory effect on cellular growth, but during cancer progression, mutations in TGF-β signal components switches TGF-β into a promoter of cancer cell proliferation, survival and metastasis. READ MORE

6. 4. The role of Smad7 and TRAF6 in Prostate Cancer Cell Invasion, Migration and Survival

   Author : Maria Ekman; Marene Landström; Carl-Henrik Heldin; Jonas Fuxe; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TGF-beta; cell migration; invasion; apoptosis; Smad7; APC; ATM; TRAF6; p53; PC3U; Medical Cell Biology; Medicinsk cellbiologi;

   Abstract : Transforming growth factor (TGF) β is a tumor suppressor during early tumor development, by inhibiting proliferation and inducing apoptosis. At later stages of cancer, it becomes a tumor promoter, and promotes tumor cell migration and invasion. TGFβ signals via its type II and type I receptors to several downstream signaling pathways. READ MORE

7. 5. Studies on the biological functions of interaction between components in Wnt, TGF-β and HIF pathways for cancer progression

   Author : Karthik Aripaka; Maréne Landström; Jonas von Hofsten; Carl-Henrik Heldin; Ruth Palmer; Lars-Gunnar Larsson; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TRAF6; HIF-1α; HIF-2α; HIF-3α; ALK5; Wnt3a; Hypoxic signalling; TGF-β; zebrafish; β-Catenin; Pathology; patologi; Oncology; onkologi;

   Abstract : Cancer is a disease that involves aggressive changes in the genome and aberrant signals between the living cells. Signalling pathways such as TGF-β (Transforming growth factor-β), Wnt, EGF (epidermal growth factor) and HIF (Hypoxia-inducible factor) evolved to regulate growth and development in mammals. READ MORE