Distribution of CD4+ CD25 high FoxP3+ regulatory T-cells in umbilical cord blood

The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians
Hanah KimIn Sook Sohn

Abstract

This study aimed to establish reference intervals for lymphocyte subsets including CD4(+)CD25(high)FoxP3(+) regulatory T-cells (Tregs) in umbilical cord blood. Umbilical cord blood was obtained after birth from 120 healthy full-term neonates, who were born between November 2010 and November 2011. Lymphocyte subsets including Tregs were analysed using flow cytometer (Beckman Coulter, Fullerton, CA, USA), and the reference intervals were defined using non-parametrical percentile methods according to the Clinical and Laboratory Standard Institute guideline (C28-A3). The reference intervals for lymphocyte subsets were: helper T-cells (CD3(+)/CD4(+)), 15.40-70.06%; cytotoxic T-cells (CD3(+)/CD8(+)), 9.65-34.28%; B-cells (CD19(+)), 4.50-29.59%; and natural killer cells (CD3(-)/CD16(+)/CD56(+)), 1.42-28.03%. The reference interval for Tregs was 0.35-9.07%. This study provides the reference intervals for lymphocyte subsets including Tregs in umbilical cord blood from healthy full-term neonates. These results could be used as fundamental data for clinical laboratory tests as well as future researches.

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Citations

May 7, 2014·PloS One·Angel A LucianoMorna J Dorsey
May 11, 2016·Clinical and Experimental Immunology·J PagelC Härtel

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