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Acta Obstet Gynecol Scand. 2008;87(2):190-4. doi: 10.1080/00016340701823991.

Alteration of peripheral CD4+CD25+ regulatory T lymphocytes in pregnancy and pre-eclampsia.

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1
Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China.

Abstract

OBJECTIVES:

To clarify the change of peripheral CD4+CD25+ regulatory T lymphocytes in normal pregnancy and pre-eclampsia and to explore its role in the pathogenesis of pre-eclampsia.

METHODS:

Twenty-seven women with pre-eclampsia, 27 with normal third trimester pregnancy and 27 healthy non-pregnant women were recruited. Blood samples were taken and surface antigen CD4 and CD25 were labelled with fluorescence-conjugated antibodies. CD4+CD25+ regulatory T cells were analysed by flow cytometry, and the proportion in T cells and the amount of regulatory T lymphocytes were calculated.

RESULTS:

The amount and the proportion of regulatory T cells were not significantly different among non-pregnant, normal pregnancy and pre-eclampsia groups (p>0.05 for both). There were no significant differences in the proportion and the amount of CD4+CD25+ regulatory T cells between mild and severe pre-eclampsia subgroups (p>0.05 for both).

CONCLUSIONS:

No significant change of peripheral regulatory T cells was observed in the current investigation, suggesting other mechanisms rather than CD4+CD25+ regulatory T cells were involved in the pathogenesis of pre-eclampsia.

PMID:
18231887
DOI:
10.1080/00016340701823991
[Indexed for MEDLINE]

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