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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1979-12-29
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pubmed:abstractText |
The blastogenesis of human blood lymphocytes has been studied by measuring the distribution of cellular and nuclear volumes in concanavalin A (Con A)-stimulated leucocyte cultures by means of a modified Coulter counter. Agglutinated and adherent cells were dispersed by 3 h of incubation with alpha-methyl-mannoside and EDTA. Fresh suspensions contained 5--35% monocytes with an average cellular volume 2--2.5 times that of small lymphocytes. The nuclear volume of monocytes was similar to that of small lymphocytes within 10% and remained constant upon stimulation. In cultures given the optimal dose of Con A, 30 micrograms/ml, measurable cell growth commenced within 8--12 h, whereas nuclear growth began some 6 h later, which is approximately 6--8 h before increased 3H-thymidine incorporation could be detected. The average volume of responding cells grew by a factor of about 4 until mitosis, which started after around 48 h, whereas the average nuclear volume increased by a factor of about 3. The percentage of cells responding by volume growth increased with mitogen concentration even for hyperoptimal concentrations (150 micrograms/ml) which strongly suppressed 3H-thymidine incorporation. The results exemplify the type of information obtained by volume spectroscopy of leucocyte cultures. This method appears to have several advantages over conventional assays of immune response.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0300-9475
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
10
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
135-43
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:115082-Cell Nucleus,
pubmed-meshheading:115082-Cell Survival,
pubmed-meshheading:115082-Cells, Cultured,
pubmed-meshheading:115082-Concanavalin A,
pubmed-meshheading:115082-Demecolcine,
pubmed-meshheading:115082-Edetic Acid,
pubmed-meshheading:115082-Humans,
pubmed-meshheading:115082-Leukocyte Count,
pubmed-meshheading:115082-Lymphocyte Activation,
pubmed-meshheading:115082-Lymphocytes,
pubmed-meshheading:115082-Mannosides,
pubmed-meshheading:115082-Spectrum Analysis
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pubmed:year |
1979
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pubmed:articleTitle |
Lymphocyte blastogenesis studied by volume spectroscopy.
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pubmed:publicationType |
Journal Article
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