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Visar resultat 1 - 5 av 12 avhandlingar som matchar ovanstående sökkriterier.

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

   Författare :Karthik Aripaka; Maréne Landström; Jonas von Hofsten; Carl-Henrik Heldin; Ruth Palmer; Lars-Gunnar Larsson; Umeå universitet; []
   Nyckelord :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;

   Sammanfattning : 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. LÄS MER

3. 2. Exploiting Drosophila as a model system for studying anaplastic lymphoma kinase in vivo

   Författare :Therese Eriksson; Ruth Palmer; Stefan Thor; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Anaplastic lymphoma kinase; Receptor tyrosine kinase; Jeb; neuroblastoma; actin polymerization; Wasp; Scar; Vrp1; Arp2 3; Molecular biology; Molekylärbiologi; molekylärbiologi; Molecular Biology;

   Sammanfattning : Anaplastic Lymphoma Kinase (ALK) is a Receptor Tyrosine Kinase (RTK) and an oncogene associated with several human diseases, but its normal function in humans and other vertebrates is unclear. Drosophila melanogaster has an ALK homolog, demonstrating that the RTK has been conserved throughout evolution. LÄS MER

4. 3. Protein tyrosine kinases and the regulation of signalling and adhesion in drosophila melanogaster

   Författare :Caroline Grabbe; Ruth Palmer; Tapio Heino; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Drosophila; Signalling; Adhesion; Protein Tyrosine Kinase; Development; Endocytosis; Molecular biology; Molekylärbiologi;

   Sammanfattning : In order to build a multi-cellular organism and to regulate cellular functions, cells need to communicate with each other, as well as tightly regulate their behaviour in response to environmental changes. For these purposes all eukaryotic cells express a large number of membrane spanning receptors that either themselves contain catalytic activity or via cytoplasmic effector enzymes, function to transmit “signals” from the cell exterior to induce appropriate responses within the cell. LÄS MER

5. 4. Deciphering the Alk signaling pathway in Drosophila

   Författare :Fredrik Hugosson; Ruth H. Palmer; Osamu Shimmi; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Drosophila; Alk; RTK; visceral mesoderm; signal transduction; growth factor; transcription factor; molekylärbiologi; Molecular Biology;

   Sammanfattning : In Drosophila melanogaster the visceral mesoderm (VM) develops during embryogenesis in a process where myoblasts become specified to generate two distinct cell types, the founder cells (FCs) and the fusion competent myoblasts (FCMs) that consequently fuses. The cell specification is dependent on cell signaling mediated by the receptor tyrosine kinase (RTK) Anaplastic lymphoma kinase (Alk) and its ligand Jelly belly (Jeb), how this further sets up different identity programs that drive myoblasts to differentiate into FCs and FCMs is still not well understood. LÄS MER

7. 5. Adaptor Proteins in Regulation of Receptor Endocytosis

   Författare :Katarzyna Kowanetz; Carl-Henrik Heldin; Ivan Dikic; Ruth Palmer; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cell and molecular biology; Cell- och molekylärbiologi; Cell and molecular biology; Cell- och molekylärbiologi;

   Sammanfattning : Ligand-induced endocytosis of receptor tyrosine kinases (RTKs) is a dynamic process governed by numerous protein-protein and protein-lipid interactions. This is a major mechanism of signal termination and is also frequently impaired in cancer. LÄS MER