Skip to Main content Skip to Navigation
Journal articles

PDE4 as a target in preterm labour.

Abstract : ABSTRACT : Cyclic nucleotide phosphodiesterases (PDE) are the enzymes catalyzing the hydrolysis and inactivation of the second messengers, cAMP and cGMP. Eleven PDE families are described to date, and selective inhibitors of some PDEs families are currently used in clinic for treating cardiovascular disorders, erectile dysfunction, and pulmonary hypertension. Isoforms of the PDE4 family are involved in smooth muscle contraction and inflammation. PDE4 selective inhibitors are currently in clinical trials for the treatment of diseases related to inflammatory disorders. Because of their myorelaxant properties, we first examined their expression in human myometrium and uncover an increased expression of one specific isoform, PDE4B2, in the near-term myometrium as compared to myometrium in the nonpregnant state. Using human myometrial cells in culture, we demonstrated that PDE4B2 can be induced by its own substrate, under the control of one of the major utero-contractile agonists, PGE2, itself upregulated by the proinflammatory cytokine IL-1beta. Functionally, augmentation of global PDE4 activity decreases the ability of beta-adrenergic agonists (the most commonly used tocolytic drugs) to inhibit myometrial contraction at the end of pregnancy and during pathophysiological situations, such as persistent intrauterine inflammation which is a major cause of very preterm delivery. Currently exploring the anti-inflammatory properties of PDE4 inhibitors in gestational tissues, we recently demonstrated the ability of these drugs to block a persistent inflammatory response of the foetal membranes in Humans and to prevent inflammation-driven preterm delivery and foetal demise in mice. These data open up a new therapeutical strategy to prevent inflammation-induced preterm delivery and its sequelae in very preterm infants.
Document type :
Journal articles
Complete list of metadatas

Cited literature [13 references]  Display  Hide  Download

https://www.hal.inserm.fr/inserm-00159118
Contributor : Celine Mehats <>
Submitted on : Monday, July 2, 2007 - 4:19:06 PM
Last modification on : Tuesday, September 22, 2020 - 3:38:50 AM
Long-term archiving on: : Monday, September 24, 2012 - 10:50:08 AM

Identifiers

Collections

Citation

Céline Méhats, Thomas Schmitz, Stéphanie Oger, Roxane Hervé, Dominique Cabrol, et al.. PDE4 as a target in preterm labour.. BMC Pregnancy and Childbirth, BioMed Central, 2007, 7 Suppl 1, pp.S12. ⟨10.1186/1471-2393-7-S1-S12⟩. ⟨inserm-00159118⟩

Share

Metrics

Record views

464

Files downloads

1417