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Regulated expression of cytokines in human endometrium throughout the menstrual cycle: dysregulation in habitual abortion.

Abstract：

:It is widely assumed that, after ovulation, the human endometrium undergoes specific changes and becomes receptive to the implantation of embryo during the mid-secretory phase. When implantation does not take place, further changes occur which eventually result in the shedding of human endometrium. The present study was carried out to examine whether there are changes in the cytokine gene expression in human endometrium which are correlated with endometrial function in various phases of the menstrual cycle. The RNase protection assay was performed on carefully dated endometria from normal subjects to characterize the expression of cytokines which potentially contribute to endometrial function. These included: tumour necrosis factor (TNF), interleukin (IL)-1beta, IL-6, IL-8, leukaemia inhibitory factor (LIF), transforming growth factor beta1 (TGF-beta1), macrophage colony stimulating factor (MCSF or colony stimulating factor-1), and vascular endothelial growth factor (VEGF) mRNAs. A low level of expression of these cytokine mRNAs was found during the proliferative and early secretory phase. Expression of cytokine mRNA increased during the mid-secretory phase and rose to a peak in the late secretory phase. The level of cytokine mRNA expression during gestation was most akin to that observed during the mid-secretory phase. Individuals with habitual abortion presented with an abnormal expression of IL-1beta and IL-6 mRNA in endometrium, during the mid-secretory phase. Taken together, these findings are consistent with a progressive rise in the expression of cytokines in human endometrium during the secretory phase in natural cycles. Furthermore, the findings show that habitual abortion is associated with the abnormal expression of IL-1beta and IL-6 in the mid-secretory phase.

journal_name

Mol Hum Reprod

journal_title

Molecular human reproduction

authors

von Wolff M,Thaler CJ,Strowitzki T,Broome J,Stolz W,Tabibzadeh S

doi

10.1093/molehr/6.7.627

subject

Has Abstract

pub_date

2000-07-01 00:00:00

pages

627-34

issue

eissn

1360-9947

issn

1460-2407

journal_volume

pub_type

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Regulated expression of cytokines in human endometrium throughout the menstrual cycle: dysregulation in habitual abortion.