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DE-627 |
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240629s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.clim.2024.110302
|2 doi
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|a pubmed24n1476.xml
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|a (DE-627)NLM374300461
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Kielsen, Katrine
|e verfasserin
|4 aut
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|a Cytomegalovirus infection is associated with thymic dysfunction and chronic graft-versus-host disease after pediatric hematopoietic stem cell transplantation
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 19.07.2024
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|a Date Revised 19.07.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024. Published by Elsevier Inc.
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|a Pediatric hematopoietic stem cell transplantation (HSCT) is challenged by chronic graft-versus-host disease (cGvHD) significantly affecting survival and long-term morbidity, but underlying mechanisms including the impact of post-HSCT CMV infection are sparsely studied. We first investigated the impact of CMV infection for development of cGvHD in 322 children undergoing standard myeloablative HSCT between 2000 and 2018. Clinically significant CMV infection (n = 61) was an independent risk factor for chronic GvHD in a multivariable Cox regression analysis (HR = 2.17, 95% CI = 1.18-3.97, P = 0.013). We next explored the underlying mechanisms in a subcohort of 39 children. CMV infection was followed by reduced concentration of recent thymic emigrants (17.5 vs. 51.9 × 106/L, P = 0.048) and naïve CD4+ and CD8+ T cells at 6 months post-HSCT (all P < 0.05). Furthermore, CD25highFOXP3+ Tregs tended to be lower in patients with CMV infection (2.9 vs. 9.6 × 106/L, P = 0.055), including Tregs expressing the naivety markers CD45RA and Helios. CD8+ T-cell numbers rose after CMV infection and was dominated by exhausted PD1-expressing cells (66% vs. 39%, P = 0.023). These findings indicate that post-HSCT CMV infection is a main risk factor for development of chronic GvHD after pediatric HSCT and suggest that this effect is caused by reduced thymic function with a persistently impaired production of naïve and regulatory T cells in combination with increased peripheral T-cell exhaustion
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|a Journal Article
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|a CMV infection
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|a Chronic graft-versus-host disease
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| 650 |
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|a Hematopoietic stem cell transplantation
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| 650 |
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|a Regulatory T cells
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| 650 |
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|a Thymic function
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| 700 |
1 |
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|a Møller, Dina Leth
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pedersen, Anders Elm
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nielsen, Claus Henrik
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ifversen, Marianne
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ryder, Lars Peter
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Müller, Klaus
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Clinical immunology (Orlando, Fla.)
|d 1999
|g 265(2024) vom: 21. Juli, Seite 110302
|w (DE-627)NLM098196855
|x 1521-7035
|7 nnns
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| 773 |
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|g volume:265
|g year:2024
|g day:21
|g month:07
|g pages:110302
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|u http://dx.doi.org/10.1016/j.clim.2024.110302
|3 Volltext
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