Literature DB >> 2945929

Monoclonal opsonic mouse antibodies specific for streptococcal IgG Fc-receptor.

M Svensson, P Christensen, D Schalén.   

Abstract

Spleen cells from mice immunised with group-A type-M15 streptococci and boosted with purified IgG Fc-receptor (FcR) from this type were fused with Sp 2/0 mouse myeloma cells. The resulting hybridomas were screened by ELISA for antibody production. Two IgM-secreting cell lines were selected. The monoclonal antibodies and ascites fluids inhibited the binding of 125I-labelled human IgG and IgG Fc-fragments to group-A type-M15 streptococci. The monoclonal antibodies also displaced purified FcR towards the anode in electrophoresis. They opsonised group-A type M-15 streptococci for phagocytosis by human granulocytes in the presence of fresh human serum. It was concluded that FcR is important for group-A streptococcal virulence.

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Year:  1986        PMID: 2945929     DOI: 10.1099/00222615-22-3-251

Source DB:  PubMed          Journal:  J Med Microbiol        ISSN: 0022-2615            Impact factor:   2.472


  4 in total

1.  Binding of IgA and/or IgG is a common property among clinical isolates of group A streptococci.

Authors:  G Lindahl; L Stenberg
Journal:  Epidemiol Infect       Date:  1990-08       Impact factor: 2.451

2.  Immunoglobulin-binding FcrA and Enn proteins and M proteins of group A streptococci evolved independently from a common ancestral protein.

Authors:  A Podbielski; J Weber-Heynemann; P P Cleary
Journal:  Med Microbiol Immunol       Date:  1994-02       Impact factor: 3.402

3.  Mry, a trans-acting positive regulator of the M protein gene of Streptococcus pyogenes with similarity to the receptor proteins of two-component regulatory systems.

Authors:  J Perez-Casal; M G Caparon; J R Scott
Journal:  J Bacteriol       Date:  1991-04       Impact factor: 3.490

4.  Fc-receptor and M-protein genes of group A streptococci are products of gene duplication.

Authors:  D G Heath; P P Cleary
Journal:  Proc Natl Acad Sci U S A       Date:  1989-06       Impact factor: 11.205

  4 in total

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