Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2007-4-4
pubmed:abstractText
Cord blood (CB) units are increasingly used for allogeneic transplantation. Cell dose, a major factor for CB selection, is evaluated before freezing by each CB bank, using various techniques. This may introduce variability and affect the prediction of cell recovery after thawing, or haematopoietic reconstitution. Forty-two children were transplanted at the same institution with unrelated CB units. All units were thawed and evaluated at the same cell therapy facility, using standard procedures. We investigated: (i) factors that affect cell loss after thawing, and (ii) the importance of CD34(+) cell doses. Prefreeze and post-thaw CD34(+) cell doses were statistically correlated, thus suggesting that variability in numeration techniques used by different CB banks does not compromise the biological and clinical value of these figures. CD34(+) cell recovery appeared to be correlated with the absolute number of CD34(+) cells per frozen bag. Infused CD34(+) is the cell dose that better correlates with platelet reconstitution delay; in addition, when using a quartile comparison, haematopoietic recovery appeared to be related with prefreeze and post-thaw CD34(+) cell doses. We conclude that enumeration of CD34(+) cells in CB units is of biological significance, and may help select CB units and identify patients at risk of delayed recovery.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0268-3369
pubmed:author
pubmed:issnType
Print
pubmed:volume
39
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
453-60
pubmed:meshHeading
pubmed-meshheading:17334384-Antigens, CD, pubmed-meshheading:17334384-Antigens, CD34, pubmed-meshheading:17334384-Cell Culture Techniques, pubmed-meshheading:17334384-Child, pubmed-meshheading:17334384-Cord Blood Stem Cell Transplantation, pubmed-meshheading:17334384-Fetal Blood, pubmed-meshheading:17334384-Hematopoietic Stem Cell Transplantation, pubmed-meshheading:17334384-Humans, pubmed-meshheading:17334384-Immunosuppressive Agents, pubmed-meshheading:17334384-Kinetics, pubmed-meshheading:17334384-Leukocyte Count, pubmed-meshheading:17334384-Neoplasms, pubmed-meshheading:17334384-Platelet Count, pubmed-meshheading:17334384-Reproducibility of Results, pubmed-meshheading:17334384-Retrospective Studies, pubmed-meshheading:17334384-Transplantation, Homologous, pubmed-meshheading:17334384-Transplantation Conditioning, pubmed-meshheading:17334384-Whole-Body Irradiation
pubmed:year
2007
pubmed:articleTitle
CD34(+) progenitors are reproducibly recovered in thawed umbilical grafts, and positively influence haematopoietic reconstitution after transplantation.
pubmed:affiliation
Centre de Thérapie Cellulaire et Génique, Département de Biologie, Institut Paoli-Calmettes, Marseille, France. thercell@marseille.fnclcc.fr
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't