BACKGROUND: The adjunction of exogenous hormones for controlled ovarian stimulation (COS) may alter endometrial receptiveness. In order to identify the genes misregulated under COS, we compared the endometrium gene expression profiles, from the same patients, in a natural cycle and in a subsequent COS cycle. METHODS: For the same normal-responder patients (n = 21), endometrial biopsies (n = 84) were collected during the pre-receptive (LH + 2) and receptive stages (LH + 7) of a natural cycle and, subsequently, on oocyte retrieval day (hCG + 2) and on transfer day (hCG + 5) of a stimulated cycle. Samples were analyzed using DNA microarrays. Gene expression profiles and biological pathways involved in endometrial receptivity were analyzed. RESULTS: Although endometrium transition profiles from pre-receptive to receptive phases are similar between patients, COS regimens alter endometrial receptivity in comparison with natural cycle. Under COS conditions, two endometrial profiles were identified and were associated either with a moderately altered receptivity profile for the majority of the patients or a strongly altered profile for a sub-category of patients. The receptive endometrium transcription profile under COS was defective for biological functions such as TGFbeta signaling, leukocyte transendothelial migration and the cell cycle. CONCLUSIONS: Gonadotrophin treatments in COS cycles led to disruptions of the transcriptional activation of genes involved in normal endometrial receptivity. We propose that when the receptiveness of the endometrium is seriously compromised by the COS protocol, fresh embryo replacement should be cancelled, the embryo frozen and thawed embryo replacement should be performed under natural cycles.
BACKGROUND: The adjunction of exogenous hormones for controlled ovarian stimulation (COS) may alter endometrial receptiveness. In order to identify the genes misregulated under COS, we compared the endometrium gene expression profiles, from the same patients, in a natural cycle and in a subsequent COS cycle. METHODS: For the same normal-responder patients (n = 21), endometrial biopsies (n = 84) were collected during the pre-receptive (LH + 2) and receptive stages (LH + 7) of a natural cycle and, subsequently, on oocyte retrieval day (hCG + 2) and on transfer day (hCG + 5) of a stimulated cycle. Samples were analyzed using DNA microarrays. Gene expression profiles and biological pathways involved in endometrial receptivity were analyzed. RESULTS: Although endometrium transition profiles from pre-receptive to receptive phases are similar between patients, COS regimens alter endometrial receptivity in comparison with natural cycle. Under COS conditions, two endometrial profiles were identified and were associated either with a moderately altered receptivity profile for the majority of the patients or a strongly altered profile for a sub-category of patients. The receptive endometrium transcription profile under COS was defective for biological functions such as TGFbeta signaling, leukocyte transendothelial migration and the cell cycle. CONCLUSIONS: Gonadotrophin treatments in COS cycles led to disruptions of the transcriptional activation of genes involved in normal endometrial receptivity. We propose that when the receptiveness of the endometrium is seriously compromised by the COS protocol, fresh embryo replacement should be cancelled, the embryo frozen and thawed embryo replacement should be performed under natural cycles.
Authors: José A Horcajadas; Pablo Mínguez; Joaquín Dopazo; Francisco J Esteban; Francisco Domínguez; Linda C Giudice; Antonio Pellicer; Carlos Simón Journal: J Clin Endocrinol Metab Date: 2008-08-12 Impact factor: 5.958
Authors: Daniel D Carson; Errin Lagow; Amantha Thathiah; Rania Al-Shami; Mary C Farach-Carson; Michael Vernon; Lingwen Yuan; Marc A Fritz; Bruce Lessey Journal: Mol Hum Reprod Date: 2002-09 Impact factor: 4.025
Authors: Anne Riesewijk; Julio Martín; Roselinde van Os; José Antonio Horcajadas; Jan Polman; Antonio Pellicer; Sietse Mosselman; Carlos Simón Journal: Mol Hum Reprod Date: 2003-05 Impact factor: 4.025
Authors: N Pereira; R T Elias; P J Christos; A C Petrini; K Hancock; J P Lekovich; Z Rosenwaks Journal: Hum Reprod Date: 2017-07-01 Impact factor: 6.918
Authors: Laura Detti; Rebecca A Uhlmann; Nicole M Fletcher; Michael P Diamond; Ghassan M Saed Journal: Fertil Steril Date: 2013-06-24 Impact factor: 7.329