Linked Life Data

11675129

Source:http://linkedlifedata.com/resource/pubmed/id/11675129

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2001-10-24
pubmed:abstractText
ETV6/CBFA2 (TEL/AML1) is the most frequent genetic abnormality associated with acute lymphoblastic leukemias in children, and is associated with a favorable prognosis. To investigate the influence of ETV6/CBFA2 on cellular transformation, the fusion gene was cloned into a murine ecotropic retroviral vector and transduced into IL-3-dependent Ba/F3 and 32Dcl.3 and IL-7-dependent IxN/2b murine hematopoietic cell lines. Different variants of ETV6/CBFA2, corresponding to CBFA2 alternatively spliced variants, and the reciprocal product CBFA2/ETV6, were stably expressed in each of these cell lines. However, although Western blot analysis demonstrated expression of each variant, none of the stable cell lines expressing CBFA2/ETV6 or the variants conferred factor-independent growth. We further investigated the effect of ETV6/CBFA2 expression in vivo by generating transgenic mice in which expression of the fusion was directed to lymphoid cells using the immunoglobulin heavy chain enhancer/promoter. Four founder mice were identified showing transmission and expression of the chimeric product. The mice were bred for five generations and followed for more than 24 months. The mice did not develop a malignant hematologic disorder, nor did they display histopathologic, morphologic, or immunophenotypic abnormalities, although ETV6/CBFA2 expression was confirmed in each line. We conclude that the expression of ETV6/CBFA2 alone is not sufficient for induction of growth factor independence in hematopoietic cell lines or hematologic disease in transgenic mice.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0165-4608
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
130
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
93-104
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:11675129-Animals, pubmed-meshheading:11675129-Blotting, Western, pubmed-meshheading:11675129-Cell Differentiation, pubmed-meshheading:11675129-Cell Line, pubmed-meshheading:11675129-Cell Transformation, Neoplastic, pubmed-meshheading:11675129-Core Binding Factor Alpha 2 Subunit, pubmed-meshheading:11675129-Electroporation, pubmed-meshheading:11675129-Enhancer Elements, Genetic, pubmed-meshheading:11675129-Flow Cytometry, pubmed-meshheading:11675129-Hematologic Neoplasms, pubmed-meshheading:11675129-Hematopoietic Stem Cells, pubmed-meshheading:11675129-Humans, pubmed-meshheading:11675129-Immunoglobulin Heavy Chains, pubmed-meshheading:11675129-Leukemia, pubmed-meshheading:11675129-Mice, pubmed-meshheading:11675129-Mice, Transgenic, pubmed-meshheading:11675129-Oncogene Proteins, Fusion, pubmed-meshheading:11675129-Plasmids, pubmed-meshheading:11675129-Promoter Regions, Genetic, pubmed-meshheading:11675129-Retroviridae, pubmed-meshheading:11675129-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:11675129-Time Factors, pubmed-meshheading:11675129-Transcriptional Activation, pubmed-meshheading:11675129-Transduction, Genetic
pubmed:year
2001
pubmed:articleTitle
The expression of ETV6/CBFA2 (TEL/AML1) is not sufficient for the transformation of hematopoietic cell lines in vitro or the induction of hematologic disease in vivo.
pubmed:affiliation
Division of Hematology, Brigham and Women's Hospital, 4 Blackfan Circle, Boston, MA, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't