Comparative study on the expression of cytokine – receptor genes in normal and preeclamptic human placentas using DNA microarrays
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Z.-J. Pang
Abstract
Aims: To study the relationship between the expression levels of cytokine/receptor genes in placenta and the pathogenesis of pre-eclampsia.
Methods: The study was performed to compare the mRNA contents of cytokine (receptor) superfamily genes in placentas from 5 patients with pre-eclampsia and 5 strictly matched normal pregnancies. A complementary DNA microarray representing over 220 cytokine-associated genes was employed to complete the detection.
Results: It was shown that, among the 221 kinds of cytokine-associated genes, 162 of those including 22 interleukin/interleukin receptor genes presented with a difference of over two times in pre-eclamptic placentas compared to normal placentas. Most of the 22 interleukin/interleukin receptor genes were shown to be highly expressed in preeclamptic placenta, while the expression of IL-2 receptor (IL-2Rα, GenBank: X01057) gene in preeclamptic placenta was comparatively lower than that in normal placenta. Furthermore, some tumor necrosis factor (TNF)/receptor superfamily genes, including TNF (GenBank: X02910), TNF ligands (Gen-Bank: U03398, U37518, AF053712, AF055872) and TNF receptors (GenBank: X60592, X63717, M83554, AF016266, AF016267, U81232) were also shown to be highly expressed in pre-eclamptic placenta. Besides interleukin and tumor necrosis factor (receptor) gene superfamily, the mRNA levels of another 39 cytokine and 15 cytokine receptor genes showed a two-fold difference between pre-eclamptic and normal placental tissues. Additionally, most of the genes were up-regulated in pre-eclamptic placenta.
Conclusions: The up-regulation of cytokine-associated genes including interleukin and TNF (receptor) superfamily expression in placenta might be intensively related to the pathogenesis of pre-eclampsia.
Copyright © 2003 by Walter de Gruyter GmbH & Co. KG
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Articles in the same Issue
- Mode of conception, placental morphology and perinatal outcome of twin gestations
- The effects of birth weight discordance and prematurity on twin neonatal outcome
- Esophageal atresia and tracheoesophageal fistula: the impact of prenatal suspicion on neonatal outcome in a tertiary care center
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- Is treatment with vaginal pessaries an option in patients with a sonographically detected short cervix?
- The effects of intramuscular administration of corticosteroids on the induction of parturition
- Perinatal significance of diagnosing glucose intolerance during pregnancy with portable glucose meter
- Biovar diversity of Ureaplasma urealyticum in amniotic fluid: distribution, intrauterine inflammatory response and pregnancy outcomes
- Comparative study on the expression of cytokine – receptor genes in normal and preeclamptic human placentas using DNA microarrays
- Chorioangioma – new insights into a well-known problem I. Results of a clinical and morphological study of 136 cases
- Chorioangiomas – new insights into a well-known problem II. An immuno-histochemical investigation of 136 cases
- Impaired CD14-dependent and independent response of polymorphonuclear leukocytes in preterm infants
- The left portal vein is the watershed of the fetal venous system
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