Linked Life Data

1607548

Source:http://linkedlifedata.com/resource/pubmed/id/1607548

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1992-7-21
pubmed:abstractText
Inhalation of an antigen, ovalbumin (OVA), in the absence of adjuvant has been demonstrated to induce an immune response that is associated with increased airway responsiveness. Determination of OVA-specific serum IgE and IgG antibody responses revealed an early increase in antibody titers that were initially restricted to the IgE class. Subsequently, IgG antibody titers increased and IgE antibody plateaued. Furthermore, we observed a tenfold increase in the number of lymphocytes caused by a predominant expansion of CD3+ T cells in the peribronchial-associated lymph modes (PBLNs) of sensitized animals compared with the numbers of cells in control animals or in the gut-associated lymphoid tissue. The sensitized animals demonstrated an increase in airway responsiveness to intravenous methacholine challenge. Analysis of in vitro immunoglobulin production by spleen mononuclear cells revealed increased spontaneous IgE production that was more than fourfold enhanced in the presence of OVA, but IgG production was not increased. Spleen and PBLN lymphocytes, but not lymphocytes from gut-draining lymph nodes, demonstrated a proliferative response to OVA. Control animals exhibited no proliferative response to OVA. Histopathologic examination of the sensitized lung revealed an absence of acute inflammatory cells (e.g., neutrophils and macrophages), lymphocytes, or monocytes at the time of the increased airway hyperresponsiveness. These data indicate that, after sensitization of mice by inhalation of antigen, the animals develop a specific IgE antibody response, expansion of PBLN lymphocyte numbers, and increased airway hyperresponsiveness in the absence of signs of airway inflammation.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0091-6749
pubmed:author
pubmed:issnType
Print
pubmed:volume
89
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1127-38
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Aerosolized antigen exposure without adjuvant causes increased IgE production and increased airway responsiveness in the mouse.
pubmed:affiliation
Department of Pediatrics, National Jewish Center for Immunology and Respiratory Medicine, Denver, CO 80206.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't