Sökning: "type I IFN system"

Visar resultat 1 - 5 av 61 avhandlingar innehållade orden type I IFN system.

1. 1. Endogenous Type I Interferon Inducers in Systemic Autoimmune Diseases

   Författare :Tanja Lövgren; Lars Rönnblom; Gunnar Alm; Maija-Leena Eloranta; Andrej Tarkowski; Uppsala universitet; []
   Nyckelord :Medicine; Systemic lupus erythematosus; Sjögren s syndrome; type I interferon; plasmacytoid dendritic cell; natural interferon-producing cell; immune complex; RNP; Ro SSA; La SSB; Medicin;

   Sammanfattning : Patients with systemic lupus erythematosus (SLE) have elevated levels of interferon (IFN)-α in blood and IFN-α-producing cells in tissues. In the present thesis, we investigate the mechanisms behind the upregulated IFN-α-production in SLE and also show that the IFN-α system is activated in primary Sjögren’s syndrome (pSS), with IFN-α-producing cells in the major affected organ, the salivary glands. LÄS MER

3. 2. Autoantibodies and the Type I Interferon System in the Etiopathogenesis of Systemic Lupus Erythematosus

   Författare :Stina Blomberg; Johan Frostegård; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicine; Systemic lupus erythematosus; type I interferon; interferon inducer; dendritic cell; natural interferon-alpha producing cell; immune complex; SSA Ro; dsDNA; BDCA; Medicin; Dermatology and venerology; clinical genetics; internal medicine; Dermatologi och venerologi; klinisk genetik; invärtesmedicin; Medicine; medicin;

   Sammanfattning : In sera remitted for anti-nuclear antibody (ANA) analysis, the supplement of a sensitive anti-SSA/Ro ELISA to the conventional ANA screening by immunofluorescence (IF) revealed that one fourth of the individuals with IF-ANA negative, but SSA/Ro ELISA positive sera, had systemic lupus erythematosus (SLE) or cutaneous LE. Consequently, adding a sensitive anti-SSA/Ro ELISA to the ANA screening is valuable for the serological detection of ANA negative SLE/LE patients. LÄS MER

4. 3. Viperin vs. tick-borne encephalitis virus : mechanism of a potent antiviral protein

   Författare :Kirstin Vonderstein; Anna Överby Wernstedt; Magnus Evander; Sonja Best; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Tick-borne encephalitis virus; TBEV; type-I interferon; IFN; Interferon-stimulated gene; ISG; viperin; GBF1; CIAO1; antiviral protein; genome replication; particle release; capsid;

   Sammanfattning : Tick-borne encephalitis virus (TBEV) is a very important virus medically, causing mild or severe encephalitis often with long-lasting sequelae. Treatment of tick-borne encephalitis is limited to supportive care, and antiviral drugs are much needed.The type-I interferon (IFN) system is the first line of host defense against many viruses. LÄS MER

5. 4. Regulation of Type I Interferon Production in Plasmacytoid Dendritic Cells : Effect of Genetic Factors and Interactions with NK Cells and B Cells

   Författare :Olof Berggren; Maija-Leena Eloranta; Niels Heegaard; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Systemic lupus erythemtosus; IFN-alpha; autoimmunity; immune complex; single nuclear polymorphisms; Medicinsk vetenskap; Medical Science;

   Sammanfattning : The type I interferon (IFN) system plays a central role in the etiopathogenesis of many autoimmune diseases, e.g. systemic lupus erythematosus (SLE). Activation of the type I IFN system in SLE is promoted by endogenous nucleic acid-containing immune complexes (ICs) which stimulate plasmacytoid dendritic cells (pDCs). LÄS MER

7. 5. Induction and functional role of type I interferon in bacterial infection of macrophages

   Författare :Elin Movert; Infektionsimmunologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; macrophage; Streptococcal M proteins; Mycobacterium marinum; Type I interferon; Infection;

   Sammanfattning : Infection represents an evolutionary arms race between pathogen and host. Thus, scientists find that pathogenic microbes have evolved elegant strategies to manipulate or avoid our immune system, allowing them to persist within the human population. LÄS MER