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Lancefield extracts of 19 types of group A streptococci as well as one group C and one group G strain were examined for agglutination of human red cells coated with various anti-Rh antibodies. Fourteen extracts agglutinated one or more of the coated cell samples, while five did not. The agglutination was inhibited by Fc but not by Fab fragments of human IgG. After mouse passages, three of the non-agglutinating strains acquired agglutinating capacity. At least three different reactivities were distinguished by the action of the extracts on IgG1 and IgG3 coated cells, respectively. Two of the streptococcal extracts, agglutinating the same anti-Rh coated cells, could be further differentiated in hemagglutination inhibition (HAI) experiments using purified IgG3 myeloma proteins. Five selected agglutinating systems were inhibited by purified myeloma proteins of the IgG1, IgG2, and IgG4 subclasses. IgG3 proteins inhibited only two of the five HAI systems.
P Christensen, and
L A Burova, and
A Grubb, and
R Grubb, and
G Samuelsson, and
C Schalén, and
M L Svensson
April 1976,
Acta pathologica et microbiologica Scandinavica. Section C, Immunology,
P Christensen, and
L A Burova, and
A Grubb, and
R Grubb, and
G Samuelsson, and
C Schalén, and
M L Svensson
April 1985,
Zentralblatt fur Bakteriologie, Mikrobiologie, und Hygiene. Series A, Medical microbiology, infectious diseases, virology, parasitology,
P Christensen, and
L A Burova, and
A Grubb, and
R Grubb, and
G Samuelsson, and
C Schalén, and
M L Svensson
March 1940,
The Yale journal of biology and medicine,
P Christensen, and
L A Burova, and
A Grubb, and
R Grubb, and
G Samuelsson, and
C Schalén, and
M L Svensson
February 1978,
Acta pathologica et microbiologica Scandinavica. Section C, Immunology,
P Christensen, and
L A Burova, and
A Grubb, and
R Grubb, and
G Samuelsson, and
C Schalén, and
M L Svensson
October 1989,
Zentralblatt fur Bakteriologie : international journal of medical microbiology,
P Christensen, and
L A Burova, and
A Grubb, and
R Grubb, and
G Samuelsson, and
C Schalén, and
M L Svensson
March 1942,
The Journal of clinical investigation,
P Christensen, and
L A Burova, and
A Grubb, and
R Grubb, and
G Samuelsson, and
C Schalén, and
M L Svensson
December 1984,
European journal of clinical microbiology,
P Christensen, and
L A Burova, and
A Grubb, and
R Grubb, and
G Samuelsson, and
C Schalén, and
M L Svensson
January 2001,
Advances in experimental medicine and biology,
P Christensen, and
L A Burova, and
A Grubb, and
R Grubb, and
G Samuelsson, and
C Schalén, and
M L Svensson
January 1947,
The New England journal of medicine,
P Christensen, and
L A Burova, and
A Grubb, and
R Grubb, and
G Samuelsson, and
C Schalén, and
M L Svensson
September 1987,
Zentralblatt fur Veterinarmedizin. Reihe B. Journal of veterinary medicine. Series B,
