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Expression of lymphocyte activation markers of preterm neonates is associated with perinatal complications
BACKGROUND: Inappropriate activation of T lymphocytes plays an important role in perinatal complications. However, data on T lymphocyte activation markers of preterm infants is scarce. We investigated the association between gender, gestational and postnatal age, preeclampsia (PE), premature rupture...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4915083/ https://www.ncbi.nlm.nih.gov/pubmed/27328920 http://dx.doi.org/10.1186/s12865-016-0159-7 |
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author | Sava, Florentina Toldi, Gergely Treszl, András Hajdú, Júlia Harmath, Ágnes Tulassay, Tivadar Vásárhelyi, Barna |
author_facet | Sava, Florentina Toldi, Gergely Treszl, András Hajdú, Júlia Harmath, Ágnes Tulassay, Tivadar Vásárhelyi, Barna |
author_sort | Sava, Florentina |
collection | PubMed |
description | BACKGROUND: Inappropriate activation of T lymphocytes plays an important role in perinatal complications. However, data on T lymphocyte activation markers of preterm infants is scarce. We investigated the association between gender, gestational and postnatal age, preeclampsia (PE), premature rupture of membranes (PROM) as well as prenatal steroid treatment (PS) and the frequency of activated T lymphocyte subsets (HLA-DR+, CD69+, CD25+, CD62L+) and major T lymphocyte subpopulations (CD4, CD8, Th1, Th2, naïve, memory) in peripheral blood during the first postnatal week in preterm infants. RESULTS: Cord blood and peripheral blood samples were collected from 43 preterm infants on the 1st, 3rd, and 7th days of life. We assessed the frequency of the above T lymphocyte subsets using flow cytometry. The ‘mixed effect model’ was used to analyze the effects of clinical parameters on T lymphocyte markers. The frequency of CD25+ T lymphocytes was higher in PROM. The frequency of CD4+ and CD8+ cells and the CD4+/CD8+ cell ratio was decreased in PE. The frequency of CD62L+ T lymphocytes was higher in male compared with female infants. PS did not affect the frequency of the investigated markers. CD4+ CD25+ cells had a lower frequency at birth than on day 7. Th2 lymphocytes had a lower frequency on postnatal days 1 and 3 when compared to day 7. CONCLUSIONS: Our observations indicate that alterations affecting the expression of T lymphocyte activation markers are associated with the above factors and may play a role in the development of perinatal complications. |
format | Online Article Text |
id | pubmed-4915083 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-49150832016-06-22 Expression of lymphocyte activation markers of preterm neonates is associated with perinatal complications Sava, Florentina Toldi, Gergely Treszl, András Hajdú, Júlia Harmath, Ágnes Tulassay, Tivadar Vásárhelyi, Barna BMC Immunol Research Article BACKGROUND: Inappropriate activation of T lymphocytes plays an important role in perinatal complications. However, data on T lymphocyte activation markers of preterm infants is scarce. We investigated the association between gender, gestational and postnatal age, preeclampsia (PE), premature rupture of membranes (PROM) as well as prenatal steroid treatment (PS) and the frequency of activated T lymphocyte subsets (HLA-DR+, CD69+, CD25+, CD62L+) and major T lymphocyte subpopulations (CD4, CD8, Th1, Th2, naïve, memory) in peripheral blood during the first postnatal week in preterm infants. RESULTS: Cord blood and peripheral blood samples were collected from 43 preterm infants on the 1st, 3rd, and 7th days of life. We assessed the frequency of the above T lymphocyte subsets using flow cytometry. The ‘mixed effect model’ was used to analyze the effects of clinical parameters on T lymphocyte markers. The frequency of CD25+ T lymphocytes was higher in PROM. The frequency of CD4+ and CD8+ cells and the CD4+/CD8+ cell ratio was decreased in PE. The frequency of CD62L+ T lymphocytes was higher in male compared with female infants. PS did not affect the frequency of the investigated markers. CD4+ CD25+ cells had a lower frequency at birth than on day 7. Th2 lymphocytes had a lower frequency on postnatal days 1 and 3 when compared to day 7. CONCLUSIONS: Our observations indicate that alterations affecting the expression of T lymphocyte activation markers are associated with the above factors and may play a role in the development of perinatal complications. BioMed Central 2016-06-21 /pmc/articles/PMC4915083/ /pubmed/27328920 http://dx.doi.org/10.1186/s12865-016-0159-7 Text en © The Author(s). 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Article Sava, Florentina Toldi, Gergely Treszl, András Hajdú, Júlia Harmath, Ágnes Tulassay, Tivadar Vásárhelyi, Barna Expression of lymphocyte activation markers of preterm neonates is associated with perinatal complications |
title | Expression of lymphocyte activation markers of preterm neonates is associated with perinatal complications |
title_full | Expression of lymphocyte activation markers of preterm neonates is associated with perinatal complications |
title_fullStr | Expression of lymphocyte activation markers of preterm neonates is associated with perinatal complications |
title_full_unstemmed | Expression of lymphocyte activation markers of preterm neonates is associated with perinatal complications |
title_short | Expression of lymphocyte activation markers of preterm neonates is associated with perinatal complications |
title_sort | expression of lymphocyte activation markers of preterm neonates is associated with perinatal complications |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4915083/ https://www.ncbi.nlm.nih.gov/pubmed/27328920 http://dx.doi.org/10.1186/s12865-016-0159-7 |
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