Sökning: "differentiation"

Visar resultat 21 - 25 av 2089 avhandlingar innehållade ordet differentiation.

1. 21. Proteolytic processing of the Alzheimer APP protein family during neuronal differentiation

   Författare :Sofia Holback; Kerstin Iverfeldt; Nigel Hooper; Stockholms universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; APP; APLP1; APLP2; differentiation; processing; retinoic acid; secretase; Neurochemistry; Neurokemi; Neurochemistry and Molecular Neurobiology; neurokemi med molekylär neurobiologi;

   Sammanfattning : Increased amyloid-β (Aβ) load in the brain, neurite degeneration, neuronal loss, and decreased levels of several neurotrophins are among the characteristics of Alzheimer’s disease (AD). Generation of Aβ occurs when the amyloid precursor protein (APP) is proteolytically processed by β- and γ-secretases in the amyloidogenic pathway. LÄS MER

3. 22. On the Role of the Tumor Suppressor p53 in Leukemic Cell Differentiation

   Författare :Mats Ehinger; Tumörmikromiljö; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Haematology; p53; Tumor Suppressor Genes; Leukemia; Differentiation; extracellular fluids; Hematologi; extracellulära vätskor;

   Sammanfattning : Leukemic cells suffer from an impaired ability to differentiate due to inherited or acquired genetic lesions. These genetic changes can sometimes be bypassed with various compounds both in vitro, and, more rarely, in vivo, thus inducing terminal differentiation of the leukemic cells. LÄS MER

4. 23. On the role of the retinoblastoma tumor suppressor gene in hematopoietic differentiation

   Författare :Gösta Bergh; Helsingborg Kliniska Vetenskaper; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; antisense; leukemia; cell cycle; differentiation; hematopoiesis; p16; p53; tumor suppressor genes; RB; oligonucleotides; Haematology; extracellular fluids; Hematologi; extracellulära vätskor;

   Sammanfattning : The aim of this study was to investigate the role of some tumor suppressor gene products (with emphasis on the retinoblastoma suppressor gene product) in the regulation of differentiation and proliferation in leukemic and normal hematopoietic cells. For this purpose, the expression of the tumor suppressor genes RB, p53 and p16 were artificially altered. LÄS MER

5. 24. The role of nuclear envelope proteins in chromatin organization, differentiation and disease

   Författare :Cecilia Bergqvist; Einar Hallberg; Philippe Collas; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nuclear envelope proteins; chromatin organization; epigenetics; differentiation; quantitative image analysis; Samp1; neurokemi med molekylär neurobiologi; Neurochemistry with Molecular Neurobiology;

   Sammanfattning : In eukaryotes the genetic material is separated from the cytoplasm by the nuclear envelope (NE), consisting of the outer and inner nuclear membrane, the nuclear lamina and the nuclear pores. The genetic material is highly structured with transcriptionally inactive heterochromatin enriched at the nuclear periphery and transcriptionally active euchromatin in the nuclear interior. LÄS MER

7. 25. Regulation of growth, differentiation and survival of B-chronic lymphocytic leukemia cells

   Författare :Ola Söderberg; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pathology; B-CLL; B cells; IL-2; IL-4; IL-10; IL-15; CD40-stimulation; SAC; Thioredoxin; proliferation; differentiation; survival; in vitro; EBV; Patologi; Pathology; Patologi; Pathology; patologi;

   Sammanfattning : Chronic lymphocytic leukemia of B cell type (B-CLL) is the most commonform of leukemia in the Western countries. The signals regulating theexpansion of the B-CLL clone in vivo is yet far from being fully understood. LÄS MER