Linked Life Data

8423098

Source:http://linkedlifedata.com/resource/pubmed/id/8423098

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1993-2-22
pubmed:abstractText
Peripheral blood immunoglobulin A antibody-secreting-cell (ASC) responses are thought to reflect the mucosal immune response to locally presented antigens. We evaluated the ASC response to cholera toxin (CT) and Inaba lipopolysaccharide (LPS) in 26 North American volunteers following immunization with a single oral dose of live attenuated Vibrio cholerae O1 vaccine strain CVD 103-HgR and again upon homologous wild-type challenge with V. cholerae classical Inaba 569B. Challenge occurred at either 7, 30, or 180 days after vaccination. The CT and LPS ASC responses of volunteers following vaccination (83 and 55%, respectively) were similar in magnitude and frequency to those of unvaccinated controls following wild-type challenge (80 and 60%, respectively [0.1 < or = P < or = 0.9]). The responses were primarily immunoglobulin A. Vaccinated volunteers challenged within 30 days of vaccination had reduced or nondetectable CT and LPS ASC responses. Challenge at 6 months resulted in a heightened ASC response to LPS, confirming the existence of mucosal memory. ASC responses to CT upon challenge at 6 months were detectable but not different from that seen following primary immunization, suggesting that secondary ASC responses to different antigens from a single vaccine operate independently. In spite of these variable ASC responses, the vaccine efficacy was 100% following challenge for all vaccinees. V. cholerae-specific ASC responses following antigenic reexposure gave information on the presence of mucosal B memory cells but did not correlate with protective immunity. As such, these ASC assays will have limited usefulness for evaluating vaccine responders in vaccine field trials in cholera-endemic areas where prior V. cholerae O1 exposure is unknown.
pubmed:grant
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-1527420, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-1692813, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-1730487, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-1887673, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-1887674, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-2000374, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-2902187, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-2912896, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-3335402, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-3470804, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-3701119, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-4064375, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-442179, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-6173431, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-6324005, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-6339558, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-6693169, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-6736680, http://linkedlifedata.com/resource/pubmed/commentcorrection/8423098-7252264
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0019-9567
pubmed:author
pubmed:issnType
Print
pubmed:volume
61
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
729-33
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Secondary Vibrio cholerae-specific cellular antibody responses following wild-type homologous challenge in people vaccinated with CVD 103-HgR live oral cholera vaccine: changes with time and lack of correlation with protection.
pubmed:affiliation
Department of Pediatrics, University of Maryland School of Medicine, Baltimore 21201.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't