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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1992-4-21
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pubmed:abstractText |
Classical and more recent studies have provided a description of the in vivo behavior of the totipotent hematopoietic stem cell and its clonal progeny. These reconstitution experiments, employing clonotypic markers have shown that single or few engrafted lymphoid-myeloid stem cells are both necessary and sufficient for long-term, stable hematopoiesis in a reconstituted mouse. This underscores the remarkable developmental capacity of individual stem cell clones. Furthermore, the long-term and retransplantation studies have provided an indication of stem cell self-renewal ability. Taken together, the long-term analyses have also shed light on the dynamic behavior of engrafted stem cell clones and of the entire reconstituted hematopoietic system. A model is presented where the developmental and proliferative behavior of totipotent stem cells is a function of time. In this model commitment versus self-renewal decisions may be governed by stochastic mechanisms. However, the actual contribution by stem cells to particular mature cell populations may be more a function of lineage specific demands as they change over post-engraftment time.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
1044-5323
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
3
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
349-55
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pubmed:dateRevised |
2005-11-16
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pubmed:meshHeading |
pubmed-meshheading:1686833-Animals,
pubmed-meshheading:1686833-Biological Markers,
pubmed-meshheading:1686833-Clone Cells,
pubmed-meshheading:1686833-Colony-Forming Units Assay,
pubmed-meshheading:1686833-Hematopoiesis,
pubmed-meshheading:1686833-Hematopoietic Stem Cell Transplantation,
pubmed-meshheading:1686833-Hematopoietic Stem Cells,
pubmed-meshheading:1686833-Mice,
pubmed-meshheading:1686833-Proviruses,
pubmed-meshheading:1686833-Virus Integration
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pubmed:year |
1991
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pubmed:articleTitle |
Clonal, in vivo behavior of the totipotent hematopoietic stem cell.
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pubmed:affiliation |
Department of Molecular Biology, Princeton University, NJ 08544-1014.
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pubmed:publicationType |
Journal Article,
Review
|