Search for dissertations about: "complement receptors 1 and 2"

Showing result 1 - 5 of 25 swedish dissertations containing the words complement receptors 1 and 2.

  1. 1. Antibody Feedback Regulation and T Cells

    Author : Fredrik Carlsson; Birgitta Heyman; Alf Grandien; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Fc receptors; B cell; T cell; antigen presentation; complement receptors; complement; IgE; IgG3; CD23; antibody; Immunology; Immunologi;

    Abstract : Antibodies, passively administered or actively produced, regulate immune responses to the antigen they recognize. This phenomenon is called antibody-mediated feedback regulation. Feedback regulation can be positive or negative, resulting in >1000-fold enhancement or >99% suppression of the specific antibody response. READ MORE

  2. 2. The Role of IgM and Complement in Antibody Responses

    Author : Christian Rutemark; Birgitta Heyman; Claus Nielsen; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Complement; antibody response; mutated IgM; natural IgM; complement receptors; SIGN-R1; SAP; CRP; B cells; Medical Science; Medicinsk vetenskap;

    Abstract : An intact complement system including the complement receptors 1 and 2 (CR1/2) is crucial for the generation of a normal antibody response in animals and humans. Moreover, activation of the classical pathway is thought to be important since deficiency in complement components C1q, C2, C4 or C3 lead to impaired antibody responses. READ MORE

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

    Author : Jörgen Dahlström; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; 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;

    Abstract : 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. READ MORE

  4. 4. B cells in Autoimmunity : Studies of Complement Receptor 1 & 2 and FcγRIIb in Autoimmune Arthritis

    Author : Kajsa Prokopec; Sandra Kleinau; Anna Erdei; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; B cells; complement receptors; fc gamma receptor IIb; autoimmune arthritis; rheumatoid arthritis; Immunology; Immunologi;

    Abstract : B cells are normally regulated to prevent activation against self-proteins through tolerance mechanisms.  However, occasionally there is a break in tolerance and B cells can become self-reactive, which might lead to the development of autoimmune disease. READ MORE

  5. 5. Feedback Enhancement of Immune Responses by IgE, IgM, and IgG3 Antibodies

    Author : Zhoujie Ding; Birgitta Heyman; Eva Severinson; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; IgE; IgM; IgG3; antibody responses; T-cell responses; antigen transportation; antigen presentation; complement; complement receptors 1 and 2; Immunologi; Immunology;

    Abstract : Antibodies can enhance or suppress the immune responses against their specific antigens. This phenomenon is known as antibody-mediated feedback regulation. We have studied the mechanisms underlying IgE-, IgM-, and IgG3-mediated enhancement of immune responses in mouse models using intravenous immunization. READ MORE