Linked Life Data

1370604

Source:http://linkedlifedata.com/resource/pubmed/id/1370604

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3-4
pubmed:dateCreated
1992-2-18
pubmed:abstractText
The effect of increasing concentrations (from 0.01 to 10 micrograms/ml) of HIV-1 envelope glycoproteins gp160, gp120, gp41 and core protein p24 was evaluated on the in vitro growth of enriched hematopoietic progenitors (CD34+ cells). Both gp120 and gp160, at concentrations from 0.01 to 10 micrograms/ml, caused a progressive and significant (p less than 0.05) decrease in viable CD34+ cell count in liquid cultures supplemented with 2 ng/ml of human recombinant (r) interleukin-3 (IL-3), evaluated by means of Trypan-blue exclusion and [3H]thymidine ([3H]TdR) incorporation. In the absence of rIL-3, no inhibitory effects were observed even at the highest gp160 and gp120 concentrations explored (10 micrograms/ml). On the contrary, gp41 and p24 did not affect the number of viable CD34+ cells, either in the presence or in the absence of rIL-3. Moreover, gp160 and gp120, but not gp41 and p24, significantly (p less than 0.05) inhibited the in vitro growth of granulomacrophage progenitors (CFU-GM) in a dose-dependent fashion. These data clearly demonstrate that HIV-1 envelope glycoproteins inhibit the growth of purified hematopoietic progenitors. We propose that HIV-1 can impair hematopoiesis through the interaction of gp120/gp160 with CD34+ cell surface, independently of an infectious process.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0304-8608
pubmed:author
pubmed:issnType
Print
pubmed:volume
122
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
271-80
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Inhibitory effect of HIV-1 envelope glycoproteins gp120 and gp160 on the in vitro growth of enriched (CD34+) hematopoietic progenitor cells.
pubmed:affiliation
Institute of Microbiology, University of Bologna, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't