Sökning: "FcγRI"

Visar resultat 1 - 5 av 13 avhandlingar innehållade ordet FcγRI.

  1. 1. CD64 (FcγRI) Expression on Neutrophil Granulocytes : A Diagnostic Marker of Acute Bacterial Infections

    Författare :Gustav Fjaertoft; Tony Foucard; Per Venge; Stelllan Håkansson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pediatrics; CD64; FcγRI; Neutrophil; Infection; Newborn; Neonate; Pediatrik; Paediatric medicine; Pediatrisk medicin;

    Sammanfattning : Background. Newborn infants, especially preterm infants, have an increased susceptibility to serious and overwhelming bacterial as well as fungal infections. Symptoms of septicaemia in especially the very preterm neonates are vague and unspecific. LÄS MER

  3. 2. Signal Transduction in Malignant Cells – Transformation, Activation and Differentiation

    Författare :Karin Kårehed; Fredrik Öberg; Jan-Ingvar Jönsson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Molecular medicine; transformation; PDGF; PI3K; Rho-GTPase; U-937; FcγRI; macrophage; Stat1; PKR; NFκB; ATRA; differentiation; Molekylärmedicin; Molecular medicine genetics and pathology ; Molekylär medicin genetik och patologi ; Pathology; Patologi;

    Sammanfattning : All aspects of cell life are regulated by signal transduction mechanisms. This thesis describes the regulatory roles of a few key signal transduction molecules involved in three major biological responses. LÄS MER

  4. 3. Feedback Enhancement of Antibody Responses via Complement and Fc Receptors

    Författare :Jörgen Dahlström; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Genetics; Mouse; transgenic knockout; immune regulation; B lymphocytes; Fc receptors; complement; IgG; IgM; IgE; Fc-gamma-RI; Fc-gamma-RII; Fc-gamma-RIII; CR1; CR2; CD21; CD35; Genetik; Clinical genetics; Klinisk genetik; Pathology; patologi;

    Sammanfattning : IgG, IgM and IgE in complex with antigen have the capacity to regulate specific immune responses. In this investigation, the role of Fc receptors for IgG (FcγRI, FcγRII and FcγRIII) and complement receptors 1 and 2 (CR1/2) for antibody-mediated enhancement of antibody responses are investigated. LÄS MER

  5. 4. The Role of Fc gamma Receptors and Mast Cell Chymase in Autoimmune Arthritis

    Författare :Sofia Magnusson; Sandra Kleinau; Jeanette Leusen; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fc gamma receptors; rheumatoid arthritis; antibodies; mast cells; mast cell; Immunology; Immunologi; Immunologi; Immunology;

    Sammanfattning : In autoimmune diseases such as rheumatoid arthritis (RA), self-reactive antibodies are present at high levels, which contributes to disease pathogenesis. The antibodies mediate their effect predominantly by binding to Fc gamma receptors (FcγR) on various leukocytes, such as monocytes, macrophages and mast cells, where FcγR ligation leads to cell activation. LÄS MER

  7. 5. Fc receptors and feedback regulation by antibodies

    Författare :Mikael Karlsson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Genetics; Mouse; B lymphocytes; Fc; receptors; IgG; IgE; FcgRI; FcgRII; FcgRIII; Fc e RI; CD23; Rh prophylaxis; Haemolytic disease of the newborn; Genetik; Clinical genetics; Klinisk genetik; Pathology; patologi;

    Sammanfattning : The purpose of this investigation was to determine the role of Fc receptors for IgG (FcγRI, FcγRIIB, FcγRIII and FcRn) in immunoregulation. IgG is known to enhance the response to soluble antigens such as bovine serum albumin whereas the response to particulate antigens is suppressed. LÄS MER