Sökning: "NK cell"

Visar resultat 21 - 25 av 314 avhandlingar innehållade orden NK cell.

1. 21. NK cell and dendritic cell interactions in innate immune responses

   Författare :Catrine M Persson; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :NK cells; Dendritic cells; crosstalk; recruitment; activation; CD94 NKG2AQa1; Toxoplasma gondii;

   Sammanfattning : Natural killer (NK) cells are cytotoxic cells of the innate immune system. They have been found to be critical in the defense against infections and also against some tumors. Recent studies have shown that NK cells require signals from accessory cells to induce their recruitment and activation at the site of infection or tumor growth. LÄS MER

3. 22. Neuropeptides and neurotrophins in arthritis : studies on the human and mouse knee joint

   Författare :Ola Grimsholm; Sture Forsgren; Solbritt Rantapää-Dahlqvist; Elvar Theodorsson; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; neuropeptides; neurotrophins; bombesin gastrin-releasing peptide; substance P; brain-derived neurotrophic factor; synovial tissue; knee joint; rheumatoid arthritis; Anatomy; Anatomi;

   Sammanfattning : Neuropeptides, such as substance P (SP) and bombesin/gastrin-releasing peptide (BN/GRP), and neurotrophins are involved in neuro-immunomodulatory processes and have marked trophic, growth-promoting and inflammation-modulating properties. The impact of these modulators in rheumatoid arthritis (RA) is, however, unclear. LÄS MER

4. 23. Early events in T cell development

   Författare :Karin Leandersson; Malmö Cancerimmunologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Immunology; pTalpha; gammadelta T cell; alphabeta T cell; development; thymus; thymocyte; serology; transplantation; Immunologi; serologi;

   Sammanfattning : T cells constitute a heterogenous population of lymphocytes. Their unifying property is that they express surface bound antigen-receptors, called T cell receptors (TCRs). The TCR is a heterodimer composed of either TCRalpha and beta chain proteins (alphabeta TCR) or gamma and delta chain proteins (gammadelta TCR). LÄS MER

5. 24. Early induced immune responses : regulation of dendritic cell and NK cell functions

   Författare :Robert Wallin; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Dendritic cell; Natural killer cell; Cytoskeleton; cAMP; cytotoxicity;

   Sammanfattning : The evolution of the advanced vertebrate adaptive immune system has required co-evolution of sophisticated immune regulating systems that determine immune class of cytokines, antibodies as well as effector mechanisms used by killer cells. The co-ordination of these responses are likely to be carried out by dendritic cells (DC) under the influence of the tissue cells and innate immune cells resident in the tissue from where the DC originates. LÄS MER

7. 25. Modulation of cytokine production by mononuclear cells in allergic inflammation. The effects of allergen exposure and anti-inflammatory agents

   Författare :Katarzyna Wosinska-Becler; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cytokines; seasonal allergy; kinetics; CysLTR1 antagonist; montelukast; rush immunotherapy; monocyte; basophil; eosinophil; NK cell; T cell;

   Sammanfattning : In pollen-sensitized subjects, seasonal allergen exposure results in clinical allergic disease, which in affected tissues displays a morphological picture typical of chronic inflammation. The cellular responses to allergens include the production of inflammatory cytokines that can be examined in peripheral blood cells. LÄS MER