Sökning: "Insulin-like growth factor 1"

Visar resultat 1 - 5 av 155 avhandlingar innehållade orden Insulin-like growth factor 1.

1. 1. Targeting insulin-like growth factor-1 receptor in cancer

   Författare :Ada Girnita; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :IGF1; IGF-1R; MDM2; p53; PPP; Tamoxifen; tyrosine kinase inhibitors; ubiquitin;

   Sammanfattning : Cancer is a multi-step process where the accumulation of several genetic and epigenetic alterations drives the transformation of a normal cell to a malignant cell, skipping the normal control of defense, repair and apoptosis. During the selection process towards a malignant phenotype, the transforming cells make use of normal (physiological) extracellular signaling pathways to create growth advantage over normal cells. LÄS MER

3. 2. Proteolysis of insulin-like growth factor-binding protein-1, -2 and -4 : function of fragments

   Författare :Katrin Brandt; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Insulin-like growth factor;

   Sammanfattning : The insulin-like growth factors (IGF-I and IGF-II) stimulate cell growth, survival and differentiation, and have insulin-like activity. A family of six IGF-binding proteins (IGFBP-1 through -6) bind to IGFs with high affinity and modulate their activity in the circulation and locally at cell-surface receptors. LÄS MER

4. 3. Regulation of insulin-like growth factor-1 receptor expression and signaling

   Författare :Radu Vasilcanu; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :IGF-1R; â-arrestins; MDM2; ubiquitination; internalization;

   Sammanfattning : Insulin-like growth factor-1 receptor (IGF-1R), a member of the insulin receptor tyrosine kinase family is a broadly expressed transmembrane receptor that plays a key role in malignant cell growth. IGF-1R transmits information provided by extracellular stimuli into intracellular signaling pathways resulting in the subsequent regulation of various effector systems. LÄS MER

5. 4. Insulin-like growth factor 1 receptor, novel functions and future possibilities

   Författare :Ahmed Waraky; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Insulin like growth factor-1 receptor (IGF-1R) has been shown to be important for cancer cell growth and survival, and is often overexpressed in malignant and premalignant tissues. Ligand binding to IGF-1R induces transphosphorylation and activation of the receptor, leading to subsequent activation of the phosphatidyl inositol-3 kinase (PI3K), the mitogen-activated protein kinase (MAPK) and the 14-3-3 pathways. LÄS MER

7. 5. Liver regeneration : With reference to malnutrition and growth factors

   Författare :Stefan Skullman; Linköpings universitet; []
   Nyckelord :cholecystokinin; energy substrates; epidermal growth factor; insulin-like growth factor I; liver composition; liver regeneration; malnutrition; pancreaticobiliary diversion; protein synthesis; rat; transfonning growth factor alpha; MEDICINE; MEDICIN;

   Sammanfattning : The liver has a unique capacity to regenerate after damage, irrespective of cause. The regulatory mechanisms of this regeneration are not fully known. Liver regeneration· is associated with rapid growth and thereby increased demands for energy and synthesis of new compounds. LÄS MER