Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2006-3-31
pubmed:abstractText
The aim of this study was to investigate calcineurin (PP2B) activity in different blood cell fractions and its inhibition by tacrolimus. Basal PP2B activity was measured in each blood cellular fraction collected from healthy volunteers. The inhibition profile of PP2B activity was explored in isolated peripheral blood mononuclear cells (PBMC) and platelets exposed directly to tacrolimus and in PBMC and platelets isolated from whole blood previously exposed to tacrolimus. Contrasting with red blood cells (30%) and platelets (25%), PBMC represented only 8.7% of PP2B activity of unfractionated whole blood. After tacrolimus exposure of isolated PBMC and platelets, the concentration of tacrolimus required to inhibit 50% of PP2B activity (EC(50)) in PBMC was significantly lower than in platelets (0.26 ng/mL vs. 0.83 ng/mL, P < 0.001). EC(50) values were similar in PBMC and platelets isolated from whole blood previously exposed to tacrolimus (7.69 ng/mL vs. 7.42 ng/mL, respectively). These results suggest PBMC is a very suitable matrix for PP2B measurement in monitoring transplant recipients but clinical studies are necessary to solve clearly this issue.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0767-3981
pubmed:author
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
137-44
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Distribution of calcineurin activity in blood cell fractions and impact of tacrolimus inhibition.
pubmed:affiliation
Laboratory of Pharmacology and Toxicology, Centre Hospitalier Universitaire Henri Mondor, 51, avenue du Maréchal de Lattre de Tassigny, 94000 Créteil, France.
pubmed:publicationType
Journal Article, In Vitro