Abstract:
:Factor B is an essential component of the complement cascade which forms the C3 and C5 convertase of the alternative pathway. Factor B cleavage products also function as cofactors in antibody-independent monocyte-mediated cytotoxicity, macrophage spreading, plasminogen activation and proliferation of B lymphocytes. Several healthy kindreds heterozygous for the factor B null or non-functional allele have been reported but the absence of homozygous factor B deficiency in humans or in animals has been speculated to be caused by the lethality of the phenotype. Here we report the generation of factor B-deficient mice by gene targeting in vivo. These mice were born at the expected Mendelian ratio and they both develop and breed normally in a conventional animal facility. These mice represent a model of complete alternative pathway deficiency. This model enables the dissection of the complement cascade in vivo and the elucidation of the relative contribution of this complement pathway in the various physiological and pathological phenomena ascribed to the complement system.
journal_name
Scand J Immunoljournal_title
Scandinavian journal of immunologyauthors
Pekna M,Hietala MA,Landin A,Nilsson AK,Lagerberg C,Betsholtz C,Pekny Mdoi
10.1046/j.1365-3083.1998.00313.xsubject
Has Abstractpub_date
1998-04-01 00:00:00pages
375-80issue
4eissn
0300-9475issn
1365-3083journal_volume
47pub_type
杂志文章abstract::We have depleted lymphocyte subsets in PVG and AO rats with MoAbs 3.2.3 (against NKR-P1 on NK and NK/T cells) and OX-8 (against CD8 on CTL and NK cells), and examined the effect on the killing of YAC-1 target cells in vitro and the effect on the acute rejection of small allogeneic lymphocytes in vivo (allogeneic lymph...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
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journal_title:Scandinavian journal of immunology
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journal_title:Scandinavian journal of immunology
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journal_title:Scandinavian journal of immunology
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
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abstract::Immune complexes were isolated by ultracentrifugation in sucrose gradients (20-65% (w/w]. the centrifugation procedure was demonstrated to be isopycnic. The banding density of the complexes was influenced by the chemical nature and molecular size of the antigen and by the antigen to antibody ratio. The method was appl...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Scandinavian journal of immunology
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
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doi:10.1111/sji.12399
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
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更新日期:2011-08-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
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更新日期:1987-12-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1980.tb00002.x
更新日期:1980-01-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.0300-9475.2004.01457.x
更新日期:2004-07-01 00:00:00
abstract::B-cell-dependent autoantibody production is a hallmark of systemic lupus erythematosus (SLE) which requires costimulatory molecules. The aim of the study was to analyse the expression of costimulatory molecules on B cells in patients with SLE. Twenty-six patients with SLE (four male, 22 female, mean age 46 +/- 15 year...
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pub_type: 杂志文章
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
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更新日期:1992-05-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3083.1996.d01-34.x
更新日期:1996-03-01 00:00:00
abstract::Allergic airway disorders such as asthma and allergic rhinitis are mainly caused by inhaled allergen-induced improper activation and responses of immune and non-immune cells. One important response is the production of IL-27 by macrophages and dendritic cells (DCs) during the early stage of airway allergies. IL-27 exe...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章,评审
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更新日期:2021-02-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/sji.12110
更新日期:2013-12-01 00:00:00
abstract::Peripheral blood mononuclear cells (PBM) from four patients with IgG myeloma and four patients with benign monoclonal gammopathy (BMG) were stimulated with pokeweed mitogen (PWM), and the in vitro immunoglobulin production over 7 days was measured with an enzyme-linked immunosorbent assay. All myeloma patients were su...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1984.tb00911.x
更新日期:1984-02-01 00:00:00