Mice deficient for the complement factor B develop and reproduce normally.

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 Immunol

authors

Pekna M,Hietala MA,Landin A,Nilsson AK,Lagerberg C,Betsholtz C,Pekny M

doi

10.1046/j.1365-3083.1998.00313.x

subject

Has Abstract

pub_date

1998-04-01 00:00:00

pages

375-80

issue

4

eissn

0300-9475

issn

1365-3083

journal_volume

47

pub_type

杂志文章
  • The effect of in vivo depletion of NKR-P1+ or CD8+ lymphocytes on the acute rejection of allogeneic lymphocytes (ALC) in the rat.

    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

    doi:10.1046/j.1365-3083.2001.00979.x

    authors: Løvik G,Vaage JT,Rolstad B,Naper C

    更新日期:2001-10-01 00:00:00

  • Transcriptional regulation of serum amyloid A1 gene expression in human aortic smooth muscle cells involves CCAAT/enhancer binding proteins (C/EBP) and is distinct from HepG2 cells.

    abstract::Regulation of acute-phase serum amyloid A (A-SAA) synthesis by proinflammatory cytokines and steroid hormones in human aortic smooth muscle cells (HASMCs) is distinct from that in HepG2 cells. To study the cis- and trans-activating promoter element involved in the SAA1 gene expression by HASMCs and HepG2 cells, we con...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1046/j.1365-3083.2002.01169.x

    authors: Kumon Y,Suehiro T,Faulkes DJ,Hosakawa T,Ikeda Y,Woo P,Sipe JD,Hashimoto K

    更新日期:2002-11-01 00:00:00

  • Fc-signalling in the modulation of immune responses by passive antibody.

    abstract::Passive antibody can both suppress and augment immune responses. Until recently, there was virtual unanimity on the importance of the interaction of the Fc portion of modulating antibody with Fc-receptors (Fc-signalling), especially in experiments involving the suppression by antibody. Experiments reported in the last...

    journal_title:Scandinavian journal of immunology

    pub_type: 历史文章,杂志文章,评审

    doi:10.1046/j.1365-3083.2001.00889.x

    authors: Sinclair NR

    更新日期:2001-04-01 00:00:00

  • Dietary antigen-specific T-cell responses: switch from an interleukin-10-dominated response in normal mice to a T-helper 1 cytokine profile in Galphai2-deficient mice prior to colitis.

    abstract::We investigated dietary antigen-specific T-cell responses in mesenteric lymph nodes (MLN) and Peyer's patches (PP) in noncolitic control mice as well as in colitis-prone mice prior to onset of histological active colitis. T cells were restimulated in vitro with constituents isolated from the mouse diet. Interestingly,...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.0300-9475.2005.01535.x

    authors: Bjursten M,Hultgren Hörnquist E

    更新日期:2005-01-01 00:00:00

  • CD4+ T cells of schistosomiasis naturally resistant individuals living in an endemic area produce interferon-gamma and tumour necrosis factor-alpha in response to the recombinant 14KDA Schistosoma mansoni fatty acid-binding protein.

    abstract::Cellular immune responses to recombinant (r) Sm14 were examined in chronic, treated patients and uninfected individuals living in an endemic area for schistosomiasis. The lymphocyte proliferative responses and cytokine profile to this antigen were evaluated. Peripheral blood mononuclear cells (PBMC) of all groups stud...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1046/j.1365-3083.2000.00710.x

    authors: Brito CF,Caldas IR,Coura Filho P,Correa-Oliveira R,Oliveira SC

    更新日期:2000-06-01 00:00:00

  • Preparative isolation of immune complexes from serum by sucrose gradient ultracentrifugation.

    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

    doi:10.1111/j.1365-3083.1984.tb00973.x

    authors: Rødahl E,Iversen OJ,Dalen AB

    更新日期:1984-07-01 00:00:00

  • Recombinant Mycobacterium smegmatis expressing an ESAT6-CFP10 fusion protein induces anti-mycobacterial immune responses and protects against Mycobacterium tuberculosis challenge in mice.

    abstract::The currently used vaccine against tuberculosis, Bacille Calmette-Guérin (BCG), has variable efficacy, so new vaccine development is crucial. In this study, we evaluated a recombinant vaccine prepared from non-pathogenic Mycobacterium smegmatis (rMS) that expresses a fusion of early secreted antigenic target 6-kDa ant...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.2010.02448.x

    authors: Zhang H,Peng P,Miao S,Zhao Y,Mao F,Wang L,Bai Y,Xu Z,Wei S,Shi C

    更新日期:2010-10-01 00:00:00

  • Up-regulation of the expression of secretory component and HLA molecules in a human colonic cell line by tumour necrosis factor-alpha and gamma interferon.

    abstract::Secretory component (SC) acts as a receptor for polymeric IgA (pIgA) and pIgM on the basolateral face of secretory epithelia. This study showed that both the production and surface membrane expression of SC were additively up-regulated by tumour necrosis factor-alpha (TNF) and gamma interferon (IFN-gamma) in a human c...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.1988.tb01460.x

    authors: Kvale D,Brandtzaeg P,Løvhaug D

    更新日期:1988-09-01 00:00:00

  • Natural killer-like cytotoxicity of human T-cell clones against various target cells.

    abstract::MLC-T cells from two different donors were cultured after limiting dilution (0.3 cells/well) in medium containing T-cell growth factor. Clones showing lytic activity against K-562 in a preliminary screening were expanded and tested against various NK-sensitive target-cell lines (Chang, T-24, Daudi, and Molt-4) and phy...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.1983.tb00770.x

    authors: López-Botet M,Moretta A,Moretta L

    更新日期:1983-01-01 00:00:00

  • Interleukin-2-activated natural killer cells may have a direct role in the control of Leishmania (Leishmania) amazonensis promastigote and macrophage infection.

    abstract::To study the role of Natural Killer (NK) cells in Leishmania infection, peritoneal macrophages from BALB/c mice were infected with Leishmania (Leishmania) amazonensis promastigotes and incubated with interleukin-2 (IL-2)-activated NK (A-NK) cells at different ratios of A-NK cells to infected macrophages (5:1, 1:1, 0.2...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.2005.01681.x

    authors: Aranha FC,Ribeiro U Jr,Basse P,Corbett CE,Laurenti MD

    更新日期:2005-10-01 00:00:00

  • Fine specificity and cytolytic activity of continuously growing alloreactive cytotoxic T lymphocyte clones.

    abstract::The role of Lyt 1+ T-cell-derived secondard CTL inducing factor allowed the cloning of alloreactive cytotoxic T lymphocytes (CTL) by the limiting dilution approach. Several monoclonal cell lines were established in vitro. The lytic activity of some of the cell lines exceeded that of CTL from bulk cultures; that is, 50...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.1980.tb00012.x

    authors: Schawaller R,Röllinghoff M,Wagner H

    更新日期:1980-01-01 00:00:00

  • The complement lectin pathway after cardiac arrest.

    abstract::The lectin pathway (LP) of the complement system may initiate inflammatory reactions when body tissue is altered. We aimed to investigate levels of the LP proteins in out-of-hospital cardiac arrest patients, and to compare these with healthy individuals. Furthermore, we aimed to clarify whether duration of targeted te...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/sji.12680

    authors: Haugaard SF,Jeppesen AN,Troldborg A,Kirkegaard H,Thiel S,Hvas AM

    更新日期:2018-06-09 00:00:00

  • Roles of group IIA phospholipase A2 and complement in killing of bacteria by acute phase serum.

    abstract::The complement system is regarded as an important component of the innate defence system against invading bacteria. However, synergistic actions between the complement and the other components of innate immunity are incompletely known. Human group IIA phospholipase A(2) (hGIIA PLA(2)) is an effective antibacterial enz...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.2005.01678.x

    authors: Grönroos JO,Salonen JH,Viander M,Nevalainen TJ,Laine VJ

    更新日期:2005-10-01 00:00:00

  • A solid-phase radioimmunoassay for C1q-binding immune complexes. I. Delta IgG as indicator molecule.

    abstract::A solid-phase radioimmunoassay for detection of circulating C1q-binding immune complexes (IC) or heat-aggregated IgG (delta IgG) is described. Purified human C1q protein was adsorbed to a fixed area of polystyrene tube surface for 1 hr at 22 degrees C, pH 7.3, mu 0.15. Binding of delta IgG or IC to solid-phase C1q at ...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.1975.tb02677.x

    authors: Svehag SE

    更新日期:1975-01-01 00:00:00

  • Changes in serum levels of brain derived neurotrophic factor and nerve growth factor-beta in schizophrenic patients before and after treatment.

    abstract::Schizophrenia is one of the most debilitating diseases among psychiatric disorders. Recent studies suggest the existence of effective immunological changes in the pathophysiology of this disease. The purpose of the current study was to determine the changes in serum levels of Brain Derived Neurotrophic Factor (BDNF) a...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/sji.12158

    authors: Ajami A,Hosseini SH,Taghipour M,Khalilian A

    更新日期:2014-07-01 00:00:00

  • Papain-Based Vaccination Modulates Schistosoma mansoni Infection-Induced Cytokine Signals.

    abstract::We have previously shown that immunization of outbred rodents with cysteine peptidases-based vaccine elicited type 2-biased immune responses associated with consistent and reproducible protection against challenge Schistosoma mansoni. We herein start to elucidate the molecular basis of C57BL/6 mouse resistance to S. m...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/sji.12399

    authors: Abdel Aziz N,Tallima H,Hafez EA,El Ridi R

    更新日期:2016-02-01 00:00:00

  • Suppressor activity of T cells bearing Fc receptors for IgG on lymphoid colony formation.

    abstract::Human T lymphocytes, upon phytohaemagglutinin stimulation, are able to form colonies in semisolid media. Peripheral T cell bearing Fc receptors (TG) were studied for their possible regulatory activity on lymphoid colony development. Although no substantial differences were observed between the cloning efficiency of un...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.1980.tb00099.x

    authors: Canonica GW,Pistoia V,Ghio R,Mingari MC,Moretta L

    更新日期:1980-01-01 00:00:00

  • Natural killer-cell cytotoxicity in HIV-positive and HIV-negative patients with and without severe course of hepatitis B virus infection.

    abstract::Natural killer (NK) cells represent the first line of defence against viral infections but, in the case of hepatitis B virus (HBV), may also be involved in liver injury. We here compared NK-cell activity of 11 patients with acute HBV infection, either HIV-positive or HIV-negative, with that of 11 healthy subjects. One...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.2005.01659.x

    authors: Morsica G,Tasca S,Biswas P,Galli A,Malnati M,Paties C,Marinelli M,Bagaglio S,Lazzarin A,Fortis C

    更新日期:2005-09-01 00:00:00

  • Molecular characteristics of IgA in infant saliva.

    abstract::Saliva was collected from 57 infants aged 6 weeks to 2.5 years and the molecular form of IgA was studied by centrifugation on sucrose density gradients. Two distinct populations were identified. Seventy-two per cent of the children had secretory IgA in their salivary secretions, while 28% had a molecular form correspo...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.1989.tb01130.x

    authors: Cripps AW,Gleeson M,Clancy RL

    更新日期:1989-03-01 00:00:00

  • Claudin-1, claudin-2 and claudin-11 genes differentially associate with distinct types of anti-inflammatory macrophages in vitro and with parasite- and tumour-elicited macrophages in vivo.

    abstract::Macrophages altered by various Th2-associated and anti-inflammatory mediators--including IL-4 and IL-13 [inducing alternatively activated macrophages (AAMs)], IL-10 and TGF-β--were generically termed M2. However, markers that discriminate between AAMs and other M2 remain scarce. We previously described E-cadherin as a...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.2012.02689.x

    authors: Van den Bossche J,Laoui D,Morias Y,Movahedi K,Raes G,De Baetselier P,Van Ginderachter JA

    更新日期:2012-06-01 00:00:00

  • Pandemic influenza vaccination elicits influenza-specific CD4+ Th1-cell responses in hypogammaglobulinaemic patients: four case reports.

    abstract::In these case reports, we investigated pandemic influenza 2009 vaccination of primary hypogammaglobulinaemic patients. Three combined variable immunodeficiency (CVID) patients and one X-linked agammaglobulinaemia (XLA) patient were vaccinated with the pandemic vaccine A/California/7/2009 (H1N1)-like split virus (X179a...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.2011.02561.x

    authors: Pedersen G,Halstensen A,Sjursen H,Naess A,Kristoffersen EK,Cox RJ

    更新日期:2011-08-01 00:00:00

  • Analysis of the antigenic profile of Mycobacterium leprae: cross-reactive and unique specificities of human and rabbit antibodies.

    abstract::Thirty-two mycobacterial components were detected by antibodies contained in leprosy patients' sera across the clinical spectrum and rabbit anti-M. leprae hyperimmune sera by western blot analysis of armadillo-derived M. leprae antigen preparations. Sera of borderline tuberculoid patients were found to contain antibod...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.1987.tb02303.x

    authors: Ehrenberg JP,Gebre N

    更新日期:1987-12-01 00:00:00

  • Characterization of human lymphocyte surface receptors for mitogenic and non-mitogenic substances.

    abstract::To compare the receptor patterns for mitogenic and non-mitogenic substances, surface glycoproteins of human lymphocytes were labelled with the lactoperioxidase-catalysed iodination technique and with a galactose oxidase-tritiated sodium borohydride technique. Labelled cells were detergent-solubilized, and the lysates ...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.1980.tb00002.x

    authors: Skoog VT,Nilsson SF,Weber TH

    更新日期:1980-01-01 00:00:00

  • Citrullination of self-proteins and autoimmunity.

    abstract::Citrullination (deimination is an enzymatic, posttranslational conversion of arginine residues to citrulline residues) of joint-associated self-proteins may be a possible mechanism in the induction of autoimmune CD4 T-cell responses in rheumatoid arthritis. We have studied the immune response to normal or deiminated h...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.0300-9475.2004.01457.x

    authors: Rubin B,Sønderstrup G

    更新日期:2004-07-01 00:00:00

  • Peripheral circulating activated b-cell populations are associated with nephritis and disease activity in patients with systemic lupus erythematosus.

    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...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.2007.02008.x

    authors: Dolff S,Wilde B,Patschan S,Dürig J,Specker C,Philipp T,Kribben A,Witzke O

    更新日期:2007-11-01 00:00:00

  • The priming of cytotoxic T-cell precursors is strictly helper T cell-dependent.

    abstract::Allogeneic chimaeras that utilize C.B-17 SCID mice (H-2d) as recipients of MHC mismatched bone marrow from C57B1/6 (H-2b) or SJL/J (H-2s) mice have been used to provide experimental evidence demonstrating the necessity for a direct interaction between an effector T helper and the cytotoxic T-cell precursor in order to...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/j.1365-3083.1992.tb03262.x

    authors: Lin Y,Langman R,Cohn M

    更新日期:1992-05-01 00:00:00

  • Wallaby serum amyloid A protein: cDNA cloning, sequence and evolutionary analysis.

    abstract::A serum amyloid A (SAA) clone was isolated from a Tammar wallaby cDNA library, the most distantly related mammalian species for which an SAA has been described to date. The clone predicts a premolecule of 127 amino acids with good homology to other mammalian SAAs, and consists of an 18 residue leader peptide and a mat...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1046/j.1365-3083.1996.d01-34.x

    authors: Uhlar CM,Black IL,Shields DC,Brack CM,Schreiber G,Whitehead AS

    更新日期:1996-03-01 00:00:00

  • The immunomodulatory potentials of interleukin-27 in airway allergies.

    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

    doi:10.1111/sji.12959

    authors: Jafarzadeh A,Nemati M,Jafarzadeh S,Chauhan P,Saha B

    更新日期:2021-02-01 00:00:00

  • The expression and significance of TIPE2 in peripheral blood mononuclear cells from asthmatic children.

    abstract::Tumour necrosis factor-α-induced protein-8 like-2 (TIPE2) is a newly identified immune negative regulator. The abnormal expression of TIPE2 has been found in several human inflammatory diseases. However, the expression level and clinical significance of TIPE2 in childhood asthma remain unclear. In this study, we detec...

    journal_title:Scandinavian journal of immunology

    pub_type: 杂志文章

    doi:10.1111/sji.12110

    authors: Ma Y,Liu X,Wei Z,Wang X,Wang Z,Zhong W,Li Y,Zhu F,Guo C,Zhang L,Wang X

    更新日期:2013-12-01 00:00:00

  • In vitro immunoglobulin production by peripheral blood mononuclear cells from multiple myeloma patients and patients with benign monoclonal gammopathy. Regulation by cell subsets.

    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

    authors: Peest D,Brunkhorst U,Schedel I,Deicher H

    更新日期:1984-02-01 00:00:00