Sökning: "TGF-beta"

Visar resultat 1 - 5 av 62 avhandlingar innehållade ordet TGF-beta.

1. 1. TGF-beta signaling in cancer

   Författare :Erik Johansson; Göteborgs universitet; []
   Nyckelord :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;

   Sammanfattning : 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. LÄS MER

3. 2. Studies of human endogenous retroviruses and of the TGF-beta signaling pathway

   Författare :Christian Kjellman; Institutionen för experimentell medicinsk vetenskap; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; high-density filter array; gliom; TGF-beta; XA34; Human endogenous retrovirus; HERV-F; transplantation; serologi; Immunologi; serology; Immunology;

   Sammanfattning : The human genome, in common with all mammalian genomes, carries a high load of inheritable retroviral sequences. We have identified and characterized a novel family of these endogenous retroviruses and have named this family HERV-F as based on the primer binding sites of three members. LÄS MER

4. 3. Mechanisms for TGF-β-Mediated Regulation of the Actin Filament System and Apoptosis

   Författare :Sofia Edlund; Pontus Aspenström; Maréne Landström; Tommy Andersson; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cell and molecular biology; TGF-beta; cytoskeleton; GTPases; mitogen-activated protein kinase kinase 3; TGF-beta-activated kinase 1; Apoptosis; Smad7; beta-catenin; p38 MAPK; Cell- och molekylärbiologi; Cell and molecular biology; Cell- och molekylärbiologi; molekylär cellbiologi; Molecular Cellbiology;

   Sammanfattning : Transforming growth factor-β (TGF-β) is a member of a large superfamily of cytokines which participate in many different types of cellular processes, such as growth inhibition, cell migration, differentiation, cell adhesion, wound healing and immunosuppression. Alterations of TGF-β superfamily signalling results in several different disorders, including bone disease, vascular disease and cancer. LÄS MER

5. 4. Growth factor regulation of the urokinase plasminogen activator (uPA) system in human endometrium, and the significance of uPA receptor activation in endometrial angiogenesis

   Författare :Tove Sandberg; Lund Obstetrik och gynekologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Obstetrics; endothelial cell migration; angiogenesis; uPA:PAI-1 complex; uPAR; TGF-beta; PAI-1; EGF; uPA; Growth factor; gynaecology; andrology; reproduction; sexuality; Obstetrik; gynekologi; andrologi; reproduktion; sexualitet;

   Sammanfattning : The purpose of this thesis was to examine the role of growth factors and the urokinase plasminogen activator (uPA) system in human endometrial angiogenesis. Growth factors as well as progesterone increased expression of the main inhibitor of uPA (PAI-1) in primary cultures of endometrial stromal cells. LÄS MER

7. 5. Regulation of mucosal inflammation by fibroblasts

   Författare :Tanya (De L.) Karlson; Göteborgs universitet; []
   Nyckelord :inflammatory bowel diseases; fibroblasts; CD40; C-EBPbeta; apoptosis; TGF-beta;

   Sammanfattning : ABSTRACT Acute inflammation in the bowel, a response of the immune system to infections or trauma, is probably a frequent but localized event, but when the barrier is repaired and the infection cleared, it is quickly followed by wound healing and resolution. However, in some individuals these mechanisms are not effective and the inflammatory bowel diseases, Crohn?s disease and ulcerative colitis result. LÄS MER