Isolation and partial characterization of an immunogenic moiety obtained from Salmonella typhimurium.

Journal of Bacteriology
M R Venneman, N J Bigley

Abstract

Ribosomal preparations obtained from Salmonella typhimurium by differential centrifugation and sodium dodecyl sulfate (SDS) treatment of the bacillary lysate were found to be immunogenic in F(1) hybrid (C(3)H/HeJ x DBA/2J) and albino Swiss mice, as determined by progressive host survival. The immunity obtained was independent of the need for adjuvant and dependent on the dosage of immunogen given. Immunizations with the ribosomal preparations induced an immune response comparable to that obtained by vaccination with living organisms and significantly greater than that obtained by immunization with heat-killed salmonellae, purified lipopolysaccharide, or crude and SDS-treated endotoxin preparations. No effect on the immunogenicity of the ribosomal fraction was observed by enzymatic treatment with trypsin, Pronase, deoxyribonuclease, and pancreatic ribonuclease. Linear sucrose density gradient resolution of the preparations showed that the immunogenicity of the ribosomal fraction was not unique to any one of its subcomponents. Ethyl alcohol-precipitated, crude ribonucleic acid preparations obtained from the ribosomal and sucrose density-resolved ribosomal preparations were found to induce an immune response comparable to that obt...Continue Reading

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Sep 1, 1978·CRC Critical Reviews in Microbiology·M Solotorovsky, M Lynn
Feb 25, 2003·Microbiology and Immunology·Hiroko HaradaEiji Kita
Feb 1, 1977·Infection and Immunity·M LynnM Solotorovsky
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Oct 1, 1971·Infection and Immunity·M R Venneman, L J Berry
Nov 1, 1977·Infection and Immunity·R K BergmanJ J Munoz

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