Linked Life Data

14576056

Source:http://linkedlifedata.com/resource/pubmed/id/14576056

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2004-2-3
pubmed:abstractText
The physiologic function of BUBR1, a key component of the spindle checkpoint, was examined by generating BUBR1-mutant mice. BUBR1(-/-) embryos failed to survive beyond day 8.5 in utero as a result of extensive apoptosis. Whereas BUBR1(+/-) blastocysts grew relatively normally in vitro, BUBR1(-/-) blastocysts exhibited impaired proliferation and atrophied. Adult BUBR1(+/-) mice manifested splenomegaly and abnormal megakaryopoiesis. BUBR1 haploinsufficiency resulted in an increase in the number of splenic megakaryocytes, which was correlated with an increase in megakaryocytic, but a decrease in erythroid, progenitors in bone marrow cells. RNA interference-mediated down-regulation of BUBR1 also caused an increase in polyploidy formation in murine embryonic fibroblast cells and enhanced megakaryopoiesis in bone marrow progenitor cells. However, enhanced megakaryopoiesis in BUBR1(+/-) mice was not correlated with a significant increase in platelets in peripheral blood, which was at least partly due to a defect in the formation of proplatelet-producing megakaryocytes. Together, these results indicate that BUBR1 is essential for early embryonic development and normal hematopoiesis.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
103
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1278-85
pubmed:dateRevised
2010-12-3
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
BUBR1 deficiency results in abnormal megakaryopoiesis.
pubmed:affiliation
Division of Molecular Carcinogenesis, Department of Medicine, Brander Cancer Institute, New York Medical College, Valhalla, NY 10595, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.