Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1979-12-29
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0300-9475
pubmed:author
pubmed:issnType
Print
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
135-43
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1979
pubmed:articleTitle
Lymphocyte blastogenesis studied by volume spectroscopy.
pubmed:publicationType
Journal Article