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| Review |
| Homing, cell cycle kinetics and fate of transplanted hematopoietic stem cells |
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| E F Srour1,2,3, A Jetmore1, F M Wolber1, P A Plett1, R Abonour1, M C Yoder2 and C M Orschell-Traycoff1 |
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1Department of Medicine, Herman B Wells Center for Pediatric Research, Indianapolis, IN, USA
2Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indianapolis, IN, USA
3Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis, IN, USA
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Correspondence to: E F Srour, Indiana University School of Medicine, 1044 West Walnut Street, R4-202, Indianapolis, IN 46202-5121, USA; Fax: 317-274-0396
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| Abstract |
| Homing of transplanted hematopoietic stem cells to recipient bone marrow is a critical step in engraftment and initiation of marrow reconstitution. At present, only partial understanding of the cellular and molecular mechanisms governing homing exists. Likewise, only an incomplete list of adhesion molecules implicated in directing the trafficking of stem cells to the marrow microenvironment is available. Opposing hypotheses that attribute homing to an orderly and orchestrated cascade of events or to random migration of circulating cells find ample experimental support. Also unsettled is the fate of marrow-homed cells shortly after transplantation and the rapidity at which they begin to proliferate in their new marrow microenvironment. The limited number of studies in this field and disparities in their experimental design intensifies the confusion surrounding these critical aspects of stem cell biology. However, this area of research is moving forward rapidly and results capable of clarifying many of these issues are forthcoming. |
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| Keywords |
| homing; trafficking; engraftment; cell cycle kinetics |
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| Received 23 April 2001; accepted 19 June 2001 |
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| November 2001, Volume 15, Number 11, Pages 1681-1684 |
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