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Antigenic activity of extracts of pneumococci

Published online by Cambridge University Press:  15 May 2009

Allan W. Downie
Affiliation:
From the Laboratories of the Hospital of the Rockefeller Institute and the Bacteriological Department of the London Hospital and Medical College
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Antigenic substances have recently been extracted in soluble form from many bacteria, and the work of Boivin & Mesrobeanu (1934), Raistrick & Topley (1934) and Topley et al. (1937) has shown that polysaccharides in combination with other non-protein substances extracted from certain Gram-negative bacilli stimulate an effective immunity in mice and specific antibody formation in rabbits. The antigenicity of similar extracts of pneumococci has not been so readily demonstrated. Berkefeld filtrates of pneumococci lysed by bile or by alternate freezing and thawing were found to be non-antigenic in rabbits (Avery & Morgan, 1925; Avery & Neill, 1925), although it was possible to immunize mice effectively with bacteria-free solutions obtained from cultures of pneumococci (Perlzweig & Steffen, 1923; Perlzweig & Keefer, 1925; Meyer, 1927). The essential antigen for the production of immunity in mice has been shown to be the type-specific polysaccharide which is effective only in small doses, usually between 0.01 and 0.00001 mg. (Schiemann & Caspar, 1927; Schiemann, 1929; Enders, 1930; Wadsworth & Brown, 1931; Avery & Goebel, 1933). The type-specific polysaccharide has, however, been found to be without antigenic activity in rabbits (Avery & Goebel, 1933; Downie, 1937).

Type
Research Article
Copyright
Copyright © Cambridge University Press 1938

References

REFERENCES

Avery, O. T. & Goebel, W. F. (1933). J. Exp. Mad. 58, 731.CrossRefGoogle Scholar
Avery, O. T. & Morgan, H. J. (1925). J. Exp. Mad. 42, 347.CrossRefGoogle Scholar
Avery, O. T. & Neill, J. M. (1925). J. Exp. Mad. 42, 355.CrossRefGoogle Scholar
Barach, A. L. (1928). J. Exp. Mad. 48, 83.CrossRefGoogle Scholar
Boivin, A. & Mesrobeanu, L. (1934). C.R. Soc. Biol., Paris, 115, 304, 309.Google Scholar
Boivin, A. & Mesrobeanu, L. (1935). C.E. Acad. Sci., Paris, 201, 168.Google Scholar
Day, H. B. (1930). Brit. J. Exp. Path. 11, 164.Google Scholar
Day, H. B. (1933). J. Path. Bact. 36, 77.CrossRefGoogle Scholar
Downie, A. W. (1937). J. Path. Bact. 45, 149.CrossRefGoogle Scholar
Dubos, R. J. (1937). J. Exp. Med. 66, 113.CrossRefGoogle Scholar
Enders, J. F. (1930). J. Exp. Med. 52, 235.CrossRefGoogle Scholar
Felton, L. D. (1932). J. Immunol. 23, 405.CrossRefGoogle Scholar
Felton, L. D. (1934). J. Immunol. 27, 379.CrossRefGoogle Scholar
Goodner, K. (1928). J. Exp. Med. 48, 1, 413.CrossRefGoogle Scholar
Harley, D. (1934). Brit. J. Exp. Path. 15, 161.Google Scholar
Heidelberger, M., Goebel, W. F. & Avery, O. T. (1925). J. Exp. Med. 42, 727.CrossRefGoogle Scholar
Jungeblut, C. W. (1927). J. Exp. Med. 45, 227.CrossRefGoogle Scholar
Killian, H. (1924). Z. Hyg. InfektKr. 102, 179.CrossRefGoogle Scholar
Meyer, H. (1927). Z. Hyg. InfektKr. 107, 416.CrossRefGoogle Scholar
Perlzweig, W. A. & Steffen, G. I. (1923). J. Exp. Med. 38, 163.CrossRefGoogle Scholar
Perlzweig, W. A. & Keefer, C. S. (1925). J. Exp. Med. 42, 747.CrossRefGoogle Scholar
Raistrick, H. & Topley, W. W. C. (1934). Brit. J. Exp. Path. 15, 113.Google Scholar
Schiemann, O. & Caspar, W. (1927). Z. Hyg. InfektKr. 108, 220.CrossRefGoogle Scholar
Schiemann, O. (1929). Z. Hyg. InfektKr. 110, 567.CrossRefGoogle Scholar
Schiemann, O., Loewenthal, H. & Hackenthal, H. (1931). Z. Hyg. InfektKr. 112, 315.CrossRefGoogle Scholar
Smith, W. (1932). J. Path. Bact. 35, 509.CrossRefGoogle Scholar
Topley, W. W. C., Raistrick, H., Wilson, J., Stacey, M., Challinor, S. W. & Clark, R. O. J. (1937). Lancet, 1, 252.CrossRefGoogle Scholar
Wadsworth, A. & Brown, R. (1931). J. Immunol. 21, 245.CrossRefGoogle Scholar