Linked Life Data

2480380

Source:http://linkedlifedata.com/resource/pubmed/id/2480380

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1990-1-19
pubmed:abstractText
We have established an Ag-specific in vitro system for studying the roles of Ag and IL-5 in B cell differentiation and Ig production. The murine B cell leukemia, BCL1B1, was transfected with mu and kappa genomic sequences and VS107 V regions that conferred a T15 Id and phosphocholine-binding specificity upon the cells. Transfected cells were treated with both the T-dependent Ag phosphorylcholine-key-hole limpet hemocyanin (PC-KLH), and 0.5 ng/ml purified IL-5. After 3.5 days steady state mu-mRNA levels increased three- to fourfold over mu-mRNA levels obtained from untreated cultures, or cultures treated with IL-5 or PC-KLH alone. IL-5 alone caused increased Ig secretion and a nearly twofold increase in proliferation. Additionally, cells treated with PC-KLH alone were able to process the Ag and present it to T cells as shown by subsequent lymphokine production. Thus, both Ag and IL-5 used singly appear to interact with their respective receptors, although neither Ag nor IL-5 increased mu-mRNA levels when used singly. The production of increased mu-mRNA levels obtained with Ag plus IL-5 required polymerase II transcription, suggesting that they may act to increase Ig transcription directly.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
143
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3934-9
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Induction of immunoglobulin mu mRNA in a B cell transfectant stimulated with interleukin-5 and a T-dependent antigen.
pubmed:affiliation
Department of Microbiology, University of Texas Southwestern Medical Center, Dallas 75235.
pubmed:publicationType
Journal Article