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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1976-7-6
pubmed:abstractText
The transfer of delayed hypersensitivity to Coccidioides immitis and Candida albicans antigens with immunogenic RNA extracts was studied in a mouse model. Sensitivity was measured by skin tests and footpad swelling responses. Immunogenic RNA converted normal spleen cells in vitro so that they produced antigen-specific delayed hypersensitivity in mice that were given injections of the cells. RNase reduced the rate of, but did not abolish, in vitro interaction of immunogenic RNA extracts with lymphocytes. Immunogenic RNA transferred sensitivity on direct intraperitoneal inoculation into mice. The transfer ability was resistant to RNase preparations active against both single- and double-stranded RNA. Sedimentation gradient fractions of the immunogenic RNA were assayed by intraperitoneal injection, and converting activity was found in two fractions, greater than 33S and 6S-13S. After treatment with RNase, all activity was shifted to the less than 6S fraction. Two fractions of the immunogenic RNA in its native state (greater than 33S and 6S-13S) were also able to convert spleen cells. The data indicate that the transfer of delayed hypersensitivity by immunogenic RNA preparations is associated with RNA but may not require the intact RNA molecule.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0022-1899
pubmed:author
pubmed:issnType
Print
pubmed:volume
133
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
523-32
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1976
pubmed:articleTitle
Delayed hypersensitivity to fungal antigens in mice. II. Molecular classes in immunogenic RNA extracts that transfer delayed hypersensitivity.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.