Consulta: subjectFacets:"Embryo implantation"
Registros recuperados: 3
Data/hora: 07/06/2024 08:24:21

Interleukin-1&amp;#946; regulates metalloproteinase activity and leptin secretion in a cytotrophoblast model
Provedor de dados: 47
Autores: Fontana,Vanina Andrea; Sanchez,Melisa; Cebral,Elisa; Calvo,Juan Carlos.
Implantation is one of the most regulated processes in human reproduction, by endocrine and immunological systems. Cytokines are involved in embryo-maternal communication and an impaired balance could result in pregnancy loss. Here we investigated the effect of interleukin 1-&amp;#946; on the activity of two important metalloproteinases (MMP-2 and MMP-9) that are involved in extracellular matrix remodeling as well as the secretion of leptin, one of the reproductive hormones actively regulating their activity and secretion. We found that IL-1&amp;#946; activates matrix metalloproteinase activity as well as increases leptin secretion. We propose that this interleukin, through the regulation of leptin, in turn activates matrix metalloproteinases which results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytokines; Embryo implantation; Placenta; Extracellular matrix.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452010000100005

Characterization of Calreticulin Expression in Mouse Endometrium during Embryo Implantation
Provedor de dados: 48
Autores: CHENG,SHU-QUN; HE,JUN-LIN; DONG,YAN-LING; LIU,XUE-QING; DING,YU-BIN; GAO,RU-FEI; TAN,YI; YE,QIAN; TIAN,ZHEN-LING; WANG,YING-XIONG.
Calreticulin (CRT), a Ca2+-binding storage protein and chaperone in the endoplasmic reticulum, modulates cell adhesiveness and integrin-dependent Ca2+ signaling. However, the role of CRT during implantation remains poorly understood. In the present study, we characterized the expression of CRT mRNA and the protein in mouse endometria from pregnancy DI to D7. Real-Time PCR and in situ hybridization results showed that the levels of CRT mRNA in the endometria of pregnant mice were significantly higher than those of non-pregnant mice (P&lt;0.05), and increased gradually from pregnancy DI to D4, reaching the máximum level on D4, followed by a plateau from D4 to D7. Using immunofluorescence histochemistry and western blot, changes of CRT expression in the...
Tipo: Journal article
Palavras-chave: Calreticulin; Endometrium; Embryo implantation; Mouse.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602009000400012

Blastocyst-endometrium interaction: intertwining a cytokine network
Provedor de dados: 56
Autores: Castro-Rendón,W.A.; Castro-Álvarez,J.F.; Guzmán-Martinez,C.; Bueno-Sanchez,J.C.
The successful implantation of the blastocyst depends on adequate interactions between the embryo and the uterus. The development of the embryo begins with the fertilized ovum, a single totipotent cell which undergoes mitosis and gives rise to a multicellular structure named blastocyst. At the same time, increasing concentrations of ovarian steroid hormones initiate a complex signaling cascade that stimulates the differentiation of endometrial stromal cells to decidual cells, preparing the uterus to lodge the embryo. Studies in humans and in other mammals have shown that cytokines and growth factors are produced by the pre-implantation embryo and cells of the reproductive tract; however, the interactions between these factors that converge for successful...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Embryo implantation; Trophoblast; Cytokines; Prostaglandins; Aspirin.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006001100001