Electroeluted outer membrane proteins as immunogens.

Abstract:

:Electroeluted outer membrane proteins [(EOmp), (35-37 KDa, porins)] were highly immunogenic in New Zealand White rabbits. An ELISA peak titer of 51,200 to EOmp as compared to 6,400 for non-eluted outer membrane protein (Omp) was demonstrated. EOmp enhanced the antigenicity of Omp possibly due to epitopes which were masked in the non-eluted antigen. Non-eluted, partially purified, Omp elicited high anti-lipopolysaccharide (LPS) titers (25,600); however, electroelution diminished LPS contamination (non detection of LPS chemically and on immunoblots) and greatly reduced the anti-LPS titer (400). It is biologically significant that anti-EOmp antibodies cross-reacted with wild-type urinary pathogens. Specificity for Omp reactivity was demonstrated by ELISA and on immunoblots with absorbed EOmp (LPS-free) antisera. These findings strengthen the rationale for exploring the protective potential of anti-Omp antibodies.

journal_name

Immunol Invest

authors

Kawahara M,Human LG,Kawahara K,Domingue GJ

doi

10.3109/08820139409087802

subject

Has Abstract

pub_date

1994-04-01 00:00:00

pages

223-30

issue

3

eissn

0882-0139

issn

1532-4311

journal_volume

23

pub_type

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