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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2005-9-1
pubmed:abstractText
In immune-competent individuals, human cytomegalovirus (HCMV) infection is associated with impairment of T-cell function. Our goal was to evaluate prospectively whether clinically asymptomatic HCMV infection in allogeneic hematopoietic stem cell transplantation (alloHSCT) recipients, treated pre emptively with ganciclovir, influences T-cell function as well. Mitogen-stimulated T-cell proliferative activity, together with cell surface markers, was tested in 49 patients on days + 30, + 45, + 60, and + 90 after alloHSCT and, additionally, in cases of positive HCMV pp65-antigenemia. HCMV infection was diagnosed in 19 patients. None of them developed HCMV disease. T-cell proliferative activity was significantly decreased on days when HCMV antigenemia was positive as compared to days without antigenemia. The number of pp65-positive cells negatively correlated with proliferative response. Comparison of patients who did experience HCMV infection with those who did not reveals significant decrease of T-cell proliferative activity observed on days + 30 and + 45, a time period when antigenemia was most frequently found to be positive, whereas no difference was detected on days + 60 and + 90. We conclude that, even clinically asymptomatic, HCMV infection has negative impact on T-cell proliferation capacity in alloHSCT recipients. However, pre emptive therapy with ganciclovir makes this immunosuppressive effect transient and restricted to the time of infection duration.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0268-3369
pubmed:author
pubmed:issnType
Print
pubmed:volume
36
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
503-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:16007103-Adolescent, pubmed-meshheading:16007103-Adult, pubmed-meshheading:16007103-Cell Proliferation, pubmed-meshheading:16007103-Child, pubmed-meshheading:16007103-Child, Preschool, pubmed-meshheading:16007103-Cytomegalovirus Infections, pubmed-meshheading:16007103-Female, pubmed-meshheading:16007103-Ganciclovir, pubmed-meshheading:16007103-Hematopoietic Stem Cell Transplantation, pubmed-meshheading:16007103-Humans, pubmed-meshheading:16007103-Immune Tolerance, pubmed-meshheading:16007103-Infant, pubmed-meshheading:16007103-Lymphocyte Activation, pubmed-meshheading:16007103-Male, pubmed-meshheading:16007103-Mitogens, pubmed-meshheading:16007103-Premedication, pubmed-meshheading:16007103-T-Lymphocytes, pubmed-meshheading:16007103-Time Factors, pubmed-meshheading:16007103-Transplantation, Homologous
pubmed:year
2005
pubmed:articleTitle
The immunosuppressive effect of human cytomegalovirus infection in recipients of allogeneic hematopoietic stem cell transplantation.
pubmed:affiliation
Oncoematologia Pediatrica, IRCCS Policlinico San Matteo, Pavia, Italy. sgiebel@poczta.onet.pl
pubmed:publicationType
Journal Article, Clinical Trial, Research Support, Non-U.S. Gov't