Thromb Haemost 1996; 76(05): 761-767
DOI: 10.1055/s-0038-1650657
Original Article
Schattauer GmbH Stuttgart

Decreased Expression of PAI-2 mRNA and Protein in Pregnancies Complicated with Intrauterine Fetal Growth Retardation

Salvador Grancha
1   The Research Center, La Fe Universitary Hospital, Valencia, Spain
,
Amparo Estellés
1   The Research Center, La Fe Universitary Hospital, Valencia, Spain
,
Juan Gilabert
2   Maternal Center, La Fe Universitary Hospital, Valencia, Spain
,
Melitina Chirivella
3   Department of Pathology, La Fe Universitary Hospital, Valencia, Spain
,
Francisco España
1   The Research Center, La Fe Universitary Hospital, Valencia, Spain
,
Justo Aznar
4   Clinical Pathology, La Fe Universitary Hospital, Valencia, Spain
› Author Affiliations
Further Information

Publication History

Received 03 April 1996

Accepted after revision 21 June 1996

Publication Date:
11 July 2018 (online)

Summary

An increase in plasma plasminogen activator inhibitors (PAIs), fundamentally PAI type 2 (PAI-2), has been described in normal pregnancy probably because the placenta is the main source of the high plasma levels of this protein. Although we have previously described plasmatic alterations of these inhibitors in pregnancies complicated with intrauterine fetal growth retardation (IUGR), no reports have been published about placental PAI-2 mRNA expression. In the present study, the placental PAI-2 expression determined in pregnancies complicated with IUGR and in severe preeclamptic patients was compared with that of normal pregnancies in order to identify the placental cell types expressing PAI-2 and to determine whether the production of PAI-2 is altered in placentas from IUGR. In situ hybridization analyses show that the syncytiotrophoblasts are the cells with the greatest PAI-2 expression in placenta. We report that the significant decrease in plasma and placental PAI-2 levels in IUGR groups is fundamentally due to a diminished expression of PAI-2 mRNA in placenta.

 
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