pubmed-article:6172373 | rdf:type | pubmed:Citation | lld:pubmed |
pubmed-article:6172373 | lifeskim:mentions | umls-concept:C0024501 | lld:lifeskim |
pubmed-article:6172373 | lifeskim:mentions | umls-concept:C0004561 | lld:lifeskim |
pubmed-article:6172373 | lifeskim:mentions | umls-concept:C0039194 | lld:lifeskim |
pubmed-article:6172373 | lifeskim:mentions | umls-concept:C0034789 | lld:lifeskim |
pubmed-article:6172373 | lifeskim:mentions | umls-concept:C0002198 | lld:lifeskim |
pubmed-article:6172373 | lifeskim:mentions | umls-concept:C0332281 | lld:lifeskim |
pubmed-article:6172373 | lifeskim:mentions | umls-concept:C0243127 | lld:lifeskim |
pubmed-article:6172373 | lifeskim:mentions | umls-concept:C1521761 | lld:lifeskim |
pubmed-article:6172373 | lifeskim:mentions | umls-concept:C1948023 | lld:lifeskim |
pubmed-article:6172373 | lifeskim:mentions | umls-concept:C1999230 | lld:lifeskim |
pubmed-article:6172373 | lifeskim:mentions | umls-concept:C0721534 | lld:lifeskim |
pubmed-article:6172373 | lifeskim:mentions | umls-concept:C0443331 | lld:lifeskim |
pubmed-article:6172373 | pubmed:issue | 4 | lld:pubmed |
pubmed-article:6172373 | pubmed:dateCreated | 1982-3-26 | lld:pubmed |
pubmed-article:6172373 | pubmed:abstractText | The supernatant of 'crowded' but not 'spread' rabbit spleen cell cultures contains a macroglobulin factor which behaves in an Ig-turnover assay as any T-independent antigen or polyclonal B-cell activator (PBA). In the supernatants of crowded rabbit lymphoid cell cultures prepared in serum free medium, the factor was found to be associated entirely with the alpha-macroglobulin (alpha M) fraction (alpha 1 + alpha 2). This alpha M was most probably actively secreted by the lymphocytes because: (i) sequential supernatants obtained in serum free medium of crowded cultures contained equal amounts of alpha M as well as equal PBA activity; (ii) the alpha M became labelled when the cells were grown in medium containing a radioactive amino acid. Macrophages were not required for the production of PBA. PBA was not produced when either crowded B or T cells were cultured alone but only when they were cultured together. Purified T cells were not triggered by any plant lectin to produce PBA. By use of anti-alpha 2M allotype antibodies and B and T cells from different rabbits, the PBA was shown to have the allotype of the T-cell donor. The PBA was associated with rabbit alpha 2M but not alpha 1M. We concluded that upon close contact, B cells stimulate T cells to produce a PBA associated with alpha 2M. | lld:pubmed |
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pubmed-article:6172373 | pubmed:language | eng | lld:pubmed |
pubmed-article:6172373 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
pubmed-article:6172373 | pubmed:citationSubset | IM | lld:pubmed |
pubmed-article:6172373 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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pubmed-article:6172373 | pubmed:status | MEDLINE | lld:pubmed |
pubmed-article:6172373 | pubmed:month | Dec | lld:pubmed |
pubmed-article:6172373 | pubmed:issn | 0019-2805 | lld:pubmed |
pubmed-article:6172373 | pubmed:author | pubmed-author:DraySS | lld:pubmed |
pubmed-article:6172373 | pubmed:author | pubmed-author:TeodorescuMM | lld:pubmed |
pubmed-article:6172373 | pubmed:author | pubmed-author:GaneaDD | lld:pubmed |
pubmed-article:6172373 | pubmed:author | pubmed-author:ChangJ LJL | lld:pubmed |
pubmed-article:6172373 | pubmed:issnType | Print | lld:pubmed |
pubmed-article:6172373 | pubmed:volume | 44 | lld:pubmed |
pubmed-article:6172373 | pubmed:owner | NLM | lld:pubmed |
pubmed-article:6172373 | pubmed:authorsComplete | Y | lld:pubmed |
pubmed-article:6172373 | pubmed:pagination | 745-54 | lld:pubmed |
pubmed-article:6172373 | pubmed:dateRevised | 2009-11-18 | lld:pubmed |
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pubmed-article:6172373 | pubmed:meshHeading | pubmed-meshheading:6172373-... | lld:pubmed |
pubmed-article:6172373 | pubmed:year | 1981 | lld:pubmed |
pubmed-article:6172373 | pubmed:articleTitle | An alpha2-macroglobulin associated factor produced by T lymphocytes which provides polyclonal stimulation of B lymphocytes to maintain the turnover of their surface Ig. | lld:pubmed |
pubmed-article:6172373 | pubmed:publicationType | Journal Article | lld:pubmed |
pubmed-article:6172373 | pubmed:publicationType | Research Support, U.S. Gov't, P.H.S. | lld:pubmed |
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