Linked Life Data

7510992

Source:http://linkedlifedata.com/resource/pubmed/id/7510992

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1994-4-22
pubmed:abstractText
Haemopoietic cytopenias are a frequent occurrence in human immunodeficiency virus type-1 (HIV-1) induced disease. In order to examine the possible direct inhibition of marrow haemopoiesis by HIV-1, we have investigated the effect of HIV-1 infection on myelopoiesis in long-term bone marrow cultures. In vitro exposure of normal marrow cultures to three different lymphocytotropic HIV-1 isolates resulted in productive infection, as demonstrated by a progressive increase of gag p24 antigen. In these experiments, ICR-3 isolate, but not LAV' or NL4-3 isolates, accelerated the loss of non-adherent cells. A differential ability of these HIV-1 isolates to suppress myelopoiesis was confirmed in long-term cultures in which virus was added continuously. In these cultures, ICR-3, and to a lesser extent also NL4-3, but not LAV', induced a progressive decrease in the number of total non-adherent cells as well as non-adherent colony forming units-granulocyte/macrophage (CFU-GM). Furthermore, exposure of normal purified CD34+ cells to ICR-3 induced defects in their ability to form haemopoietic colonies; this inhibitory effect was significantly relieved by pretreatment of ICR-3 with an anti-gp120 antibody. Similar exposure of CD34+ cells to LAV' and NL4-3 induced no such defects. These data indicate that some HIV-1 isolates can impair bone marrow haemopoiesis in a dose-dependent fashion, acting, at least in part, at the level of haemopoietic stem/progenitor cells.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0007-1048
pubmed:author
pubmed:issnType
Print
pubmed:volume
85
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
596-602
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Effect of different human immunodeficiency virus type-1 (HIV-1) isolates on long-term bone marrow haemopoiesis.
pubmed:affiliation
Geraldine Brush Cancer Research Institute, Medical Research Institute, San Francisco, CA 94115.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.