Linked Life Data

8457024

Source:http://linkedlifedata.com/resource/pubmed/id/8457024

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1993-4-20
pubmed:abstractText
The in vitro proliferative response to separated immunologically relevant components of Parietaria judaica pollen extract (PjE) was investigated by proliferation assay and limiting dilution analysis, in peripheral blood mononuclear cells from Parietaria-allergic subjects and nonallergic controls. In the same subjects, the profile of the antibody response to the PjE fractions was also studied by immunoblotting to evaluate the functional significance of allergen-induced T-cell activation in the two groups. The estimated frequency of PjE-reactive T cells in peripheral-blood mononuclear cells was low in both groups. No difference was found between the Parietaria-allergic subjects and nonallergic controls. To assess the overall contribution to the cellular response of PjE components of different molecular weights, we separated the extract by the SDS-PAGE technique, and the fractions were blotted onto nitrocellulose and solubilized. Almost all the 14 fractions tested induced T-cell proliferation, at different degrees of magnitude. Responses were similar in the allergic subjects and nonallergic controls. Immunoblotting demonstrated specific IgG antibodies to the 14 PjE fractions not only in the allergic subjects, but also in the healthy controls, whereas IgE antibodies were found, as expected, only in the sera from atopic subjects. These findings indicate that PjE fractions elicit similar T-cell activation and IgG production in allergic and normal subjects.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0105-4538
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
37-44
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
T-cell and antibody response to Parietaria judaica allergenic fractions in atopic and nonatopic individuals.
pubmed:affiliation
Department of Immunology, Istituto Superiore di Sanità, Rome, Italy.
pubmed:publicationType
Journal Article