Linked Life Data

11259867

Source:http://linkedlifedata.com/resource/pubmed/id/11259867

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2001-3-22
pubmed:abstractText
We have studied the influence of metabolites of chlorinated pesticides (lindane, pentachlorophenol, hexachlorobenzene) on proliferation and differentiation in two stroma-free murine bone marrow culture models, a multipotent progenitor cell line (FDCP-mix) and primary lineage-depleted bone marrow cells. Tetrachlorohydroquinone (Cl(4)pHQ), tetrachloro-p-benzoquinone (Cl(4p)BQ), but not their positional isomers, tetrachlorocatechol (Cl(4)oHQ) and tetrachloro-o-benzoquinone (Cl(4)oBQ), nor 2,4,6-trichlorophenol (2,4,6-Cl(3)P), were much more toxic to FDCP-mix cells cultured under conditions which lead to self-renewal than under conditions which lead to granulocyte-macrophage differentiation. Under the latter conditions, Cl(4)pHQ and Cl(4p)BQ even stimulated growth at intermediate concentration levels. In the primary cell cultures, pronounced differences were observed in the sensitivity between individual developmental pathways and between the different compounds. The percent of cells differentiating into the granulocytic lineage was increased at high concentration levels of each test compound. However, stimulatory effects on the macrophage lineage were observed at intermediate concentration levels of Cl(4)pHQ, Cl(4p)BQ and 2,4,6-Cl(3)P, and differentiation into erythrocytes was stimulated at low concentrations of 2,4,6-Cl(3)P. It is concluded that chlorinated monocyclic pesticides, after biotransformation to quinoid metabolites, may interact directly with haemopoietic progenitor cells with differential effects on self-renewal and differentiation. These mechanisms could lead to myeloplastic disorders.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0887-2333
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
31-7
pubmed:dateRevised
2009-4-10
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Proliferation and differentiation of murine haemopoietic progenitor cells in stroma-free culture in the presence of metabolites of chlorinated pesticides.
pubmed:affiliation
Institute of Transfusion Medicine and Immune Haematology, Sandhofstrasse 1, D-60528 Frankfurt, Germany. thenschler@bsdhessen.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't