Skip to main content

Main menu

  • Home
  • Articles
    • Newest Articles
    • Current Issue
    • Archive
    • Subject Collections
    • Meeting Collections
  • Reviews & Opinions
    • Editorials
    • Insights
    • Perspectives
    • Reviews
  • Alerts
  • About
    • History
    • Editors & Staff
    • Policies & Permissions
    • Advertise
    • Contact Us
  • Submit
    • Submit a Manuscript
    • Instructions for Authors
    • Publication Fees
    • Author Services
  • Subscriptions
  • Rockefeller University Press
  • JCB
  • JEM
  • JGP
  • LSA

User menu

  • Log in

Search

  • Advanced search
JEM
  • Rockefeller University Press
  • JCB
  • JEM
  • JGP
  • LSA
  • Log in
JEM

Advanced Search

  • Home
  • Articles
    • Newest Articles
    • Current Issue
    • Archive
    • Subject Collections
    • Meeting Collections
  • Reviews & Opinions
    • Editorials
    • Insights
    • Perspectives
    • Reviews
  • Alerts
  • About
    • History
    • Editors & Staff
    • Policies & Permissions
    • Advertise
    • Contact Us
  • Submit
    • Submit a Manuscript
    • Instructions for Authors
    • Publication Fees
    • Author Services
  • Subscriptions

You are here

jem Home » 1985 Archive » 1 December » 162 (6): 1837
Article

Escherichia coli K51 and K93 capsular polysaccharides are crossreactive with the group A capsular polysaccharide of Neisseria meningitidis. Immunochemical, biological, and epidemiological studies.

N Guirguis, R Schneerson, A Bax, W Egan, J B Robbins, J Shiloach, I Orskov, F Orskov, A el Kholy
N Guirguis
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
R Schneerson
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
A Bax
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
W Egan
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
J B Robbins
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
J Shiloach
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
I Orskov
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
F Orskov
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
A el Kholy
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
DOI: 10.1084/jem.162.6.1837 | Published December 1, 1985
  • Article
  • Info
  • Metrics
  • Preview PDF
Loading

Abstract

Eleven Escherichia coli strains, crossreactive with the capsular polysaccharide (CPS) of Neisseria meningitidis group A (GrA), were detected among 645 stool isolates from healthy families in Cairo, Egypt. 10 of these strains were of the O107:K93:H27 or O107:K93:SP serotypes and may be considered descendents of a single bacterium or as a clone. The remaining crossreactive strain was of the O7:K51:H18 serotype. None of the 11 strains produced enterotoxins and none were enteroinvasive. The purified CPS of these E. coli strains, as well as a polysaccharide (PS) from B. pumilis, strain Sh17, precipitated with equine GrA (H49) antiserum. A partial identity between the E. coli K93, K51 and Sh17 PS on the one hand and the GrA CPS on the other was observed by double immunodiffusion when reacted against the H49 antiserum. Four K93 strains and one K51 strain were found among 320 E. coli strains from patients at the Clinical Center, National Institutes of Health, and three K93 strains were found in 105 stool samples from children in Copenhagen. The data from these three surveys suggest that these crossreactive E. coli are common organisms and could serve as a stimulus for "natural" GrA CPS antibodies. Quantitative precipitation analysis showed that K51, K93, and Sh17 PS precipitated 25, 46.8, and 50% of H49 antibodies, respectively. Absorption of H49 antiserum with the GrA CPS removed its precipitating activity with the E. coli K93, K51, and Sh17 PS. Absorption of H49 antiserum with either K51 CPS or Sh17 PS removed the homologous crossreactivity only, whereas K93 CPS absorbed both K93 and K51 reactivities. Antibodies, raised by intravenous injection of formalinized E. coli K93 or K51 cells into rabbits, precipitated with GrA CPS and were bactericidal against GrA meningococci. The crossreaction between the E. coli K93 and the GrA CPS was unexpected since these two CPS are compositionally so dissimilar.

© 1985 Rockefeller University Press
Previous articleNext article
Back to top
Download PDF
Citation Tools
Escherichia coli K51 and K93 capsular polysaccharides are crossreactive with the group A capsular polysaccharide of Neisseria meningitidis. Immunochemical, biological, and epidemiological studies.
N Guirguis, R Schneerson, A Bax, W Egan, J B Robbins, J Shiloach, I Orskov, F Orskov, A el Kholy
Journal of Experimental Medicine Dec 1985, 162 (6) 1837-1851; DOI: 10.1084/jem.162.6.1837

Citation Manager Formats

  • BibTeX
  • Bookends
  • EasyBib
  • EndNote (tagged)
  • EndNote 8 (xml)
  • Medlars
  • Mendeley
  • Papers
  • RefWorks Tagged
  • Ref Manager
  • RIS
  • Zotero
Alerts
Sign In to Email Alerts with your Email Address

Email logo Twitter logo Facebook logo Mendeley logo Reddit logo CiteULike logo LinkedIn logo
The Journal of Experimental Medicine: 215 (4)

Current Issue

April 2, 2018
Volume 215, No. 4

  • Table of Contents
  • All Issues

Jump To

  • Article
  • Info
  • Metrics
  • Preview PDF
 

ARTICLES

  • Current Issue
  • Newest Articles
  • Archive
  • Alerts
  • RSS feeds

FOR AUTHORS

  • Submit a Manuscript
  • Instructions for Authors

ABOUT

  • About JEM
  • Editors & Staff
  • Policies & Permissions
  • Advertise
  • Contact Us
  • Feedback
  • Newsroom

CONNECT WITH JEM

  • Email
  • Facebook
  • Twitter
  • RSS
  • Instagram

Online ISSN: 1540-9538
Print ISSN: 0022-1007

Copyright © 2018 JEM by Rockefeller University Press