Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1992-3-4
pubmed:abstractText
The immunosuppressive drugs FK-506 and mycophenolic acid (MPA) have recently been described, but their mode(s) of action are not well understood. We have compared them to cyclosporine A (CsA) in several assays. We have shown that CsA (1 microgram/ml), MPA (0.1 microgram/ml), and FK-506 (0.5 microgram/ml) all induce a state of unresponsiveness to anti-CD3 stimulation as measured by [3H]-thymidine uptake. This suggests that the target of these drugs may be present only after mitogenic stimulation. These drugs also cause a hyperpolarization of the plasma membrane of lymphocytes. This effect is blocked by quinine or verapamil. All three immunosuppressors only slightly modulate the increase in intracellular Ca++ caused by Con-A or by anti-CD3 stimulation but do not affect Ca++ levels alone. They also decrease expression of IL-2 receptors on alpha CD3-stimulated lymphocytes. Similarities in their modes of action, as measured by these biophysical and cell biological tests, indicate the possibility that these three drugs will show similarities in their clinical performance.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0892-3973
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
563-76
pubmed:dateRevised
2009-5-14
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Comparison of the in vitro and biophysical effects of cyclosporine A, FK-506, and mycophenolic acid on human peripheral blood lymphocytes.
pubmed:affiliation
Division of Research and Testing, Food and Drug Administration, Washington, DC 20205.
pubmed:publicationType
Journal Article, Comparative Study