Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2001-7-26
pubmed:abstractText
Immune recovery after cord blood transplantation (CBT) is of concern owing to the low number of lymphocytes transferred with the graft and their immaturity. Risk factors influencing lymphocyte subset reconstitution related to disease, patient, donor and transplant were studied in 63 children (< 16 years), given either related (n = 14) or unrelated (n = 49) CBT for malignant (n = 33) or non-malignant diseases (n = 30). Only children with sustained myeloid engraftment were analysed. Absolute numbers of T (CD3(+), CD4(+), CD8(+)), B and natural killer (NK) cells were reported 2--3, 6, 9, 12 and 12--24 months after CBT. Median patient age was 4.0 years (0--15) and median follow-up was 23 months (1.7--61.0). Twenty-six patients received human leucocyte antigen (HLA)-matched CBT and 37 received HLA-mismatched CBT. The median number of nucleated cells (NCs) collected/recipient weight was 6.1 x 10(7)/kg. In this selected population, the estimate 2 year survival was 85%. Lymphocyte reconstitution (defined as the median time to reach the normal value of age-matched healthy children) was 3, 6 and 8 months for NK, B and CD8(+) cells, while it was 11.7 months for both CD3(+) and CD4(+) lymphocytes. In the multivariate analysis, factors favouring T-cell recovery were: related donor (P = 0.002); higher NCs/kg (P = 0.005) and recipient cytomegalovirus (CMV)-positive serology (P = 0.04). Presence of acute graft-versus-host disease (GVHD) delayed T-cell recovery (P = 0.04). To summarize, in children with sustained myeloid engraftment the concern that lymphocyte recovery after CBT could be delayed does not appear to be substantiated by our results.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0007-1048
pubmed:author
pubmed:issnType
Print
pubmed:volume
114
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
42-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:11472343-Adolescent, pubmed-meshheading:11472343-Age Factors, pubmed-meshheading:11472343-Antigens, CD3, pubmed-meshheading:11472343-B-Lymphocytes, pubmed-meshheading:11472343-CD4-Positive T-Lymphocytes, pubmed-meshheading:11472343-CD8-Positive T-Lymphocytes, pubmed-meshheading:11472343-Child, pubmed-meshheading:11472343-Child, Preschool, pubmed-meshheading:11472343-Cytomegalovirus Infections, pubmed-meshheading:11472343-Female, pubmed-meshheading:11472343-Fetal Blood, pubmed-meshheading:11472343-Hematologic Diseases, pubmed-meshheading:11472343-Hematopoietic Stem Cell Transplantation, pubmed-meshheading:11472343-Humans, pubmed-meshheading:11472343-Infant, pubmed-meshheading:11472343-Infant, Newborn, pubmed-meshheading:11472343-Killer Cells, Natural, pubmed-meshheading:11472343-Lymphocyte Count, pubmed-meshheading:11472343-Lymphocyte Subsets, pubmed-meshheading:11472343-Male, pubmed-meshheading:11472343-Multivariate Analysis, pubmed-meshheading:11472343-Prognosis, pubmed-meshheading:11472343-Proportional Hazards Models, pubmed-meshheading:11472343-Transplantation Immunology
pubmed:year
2001
pubmed:articleTitle
Factors affecting lymphocyte subset reconstitution after either related or unrelated cord blood transplantation in children -- a Eurocord analysis.
pubmed:affiliation
Department of Paediatric Haematology and Oncology, Heinrich-Heine-University of Düsseldorf, Germany. niehues@uni-duesseldorf.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't