Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1990-10-19
pubmed:abstractText
Reconstitution of levels of pheripheral blood cells following bone marrow transplantation is dependent on the engraftment of the pluripotent hemopoietic stem cells of the transplant. In the case of allogeneic transplants, a successful engraftment carries a high risk of the development of GvHD, which is a serious and often life-threatening complication. T cell depletion of the allogeneic bone marrow graft can completely prevent GvHD provided a sufficient degree of depletion is achieved. Experiments with laboratory animals and clinical experience have shown that the higher rate of graft failure that occurs with T cell depleted marrow grafts can be avoided by increasing the conditioning dose of TBI with approximately 2 Gy. Experiments with T cell depleted autologous bone marrow grafts and with grafts of autologous purified stem cells in monkeys demonstrate that the decreased engraftment of T cell depleted bone marrow cannot be ascribed to a trophic function of T lymphocytes, e.g. via production of hemopoietic growth factors. Using sublethally irradiated Rhesus monkeys, the effect of post-irradiation treatment with GM-CSF or with Rhesus monkey r IL-3 was studied. Enhancement of blood cell regeneration was only recorded within a relatively small TBI dose range. When the dose of TBI induces more than approximately a 3-log stem cell kill, treatment with growth factors becomes ineffective. Comparable results are obtained when supralethally irradiated monkeys given relatively small grafts of T cell depleted autologous bone marrow were treated with the hemopoietic growth factors.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0361-7742
pubmed:author
pubmed:issnType
Print
pubmed:volume
352
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
479-91
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed-meshheading:1698302-Animals, pubmed-meshheading:1698302-Bone Marrow Transplantation, pubmed-meshheading:1698302-Colony-Stimulating Factors, pubmed-meshheading:1698302-Graft Enhancement, Immunologic, pubmed-meshheading:1698302-Graft Survival, pubmed-meshheading:1698302-Granulocyte Colony-Stimulating Factor, pubmed-meshheading:1698302-Granulocyte-Macrophage Colony-Stimulating Factor, pubmed-meshheading:1698302-Growth Substances, pubmed-meshheading:1698302-Hematopoietic Stem Cells, pubmed-meshheading:1698302-Humans, pubmed-meshheading:1698302-Immunosuppression, pubmed-meshheading:1698302-Lymphocyte Depletion, pubmed-meshheading:1698302-Macaca mulatta, pubmed-meshheading:1698302-Mice, pubmed-meshheading:1698302-Rats, pubmed-meshheading:1698302-Recombinant Proteins, pubmed-meshheading:1698302-T-Lymphocytes, pubmed-meshheading:1698302-Transplantation, Autologous, pubmed-meshheading:1698302-Transplantation, Heterologous, pubmed-meshheading:1698302-Transplantation, Homologous
pubmed:year
1990
pubmed:articleTitle
Factors influencing reconstitution by bone marrow transplantation.
pubmed:affiliation
Radiobiological Institute, Rijswijk, The Netherlands.
pubmed:publicationType
Journal Article