[Effects of epidermal growth factor (EGF) on prostaglandin E2 synthesis by cultured human endometrial cells]. 1990

S Ishihara, and Y Taketani, and M Mizuno
Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tokyo.

Prostaglandins are considered to participate in the nidation of the embryo. However, so far little is known about the regulation of prostaglandin synthesis in endometrial tissue. In this study, we examined the effect of epidermal growth factor (EGF) on the release of PGE2 with primary cell culture of human endometrium. EGF stimulated PGE2 release dose-dependently in the range between 0.1 ng/ml and 100 ng/ml. PGE2 release was augmented significantly as early as 30 minutes after the addition of EGF, reaching a plateau at 3 hours. The stimulatory effect of EGF was eliminated by the concomitant addition of lipocortin, an inhibitor of phospholipase A2. However, the effect of EGF was not influenced by cycloheximide. Estradiol alone had a weak effect on PGE2 release. However, the stimulatory effect of EGF was more pronounced in cells pretreated with estradiol. In conclusion, this report offers evidence that EGF stimulates the release of PGE2 from human endometrial cells, thus implying the involvement of EGF in implantation.

UI MeSH Term Description Entries
D010741 Phospholipases A Phospholipases that hydrolyze one of the acyl groups of phosphoglycerides or glycerophosphatidates.
D002135 Calcium-Binding Proteins Proteins to which calcium ions are bound. They can act as transport proteins, regulator proteins, or activator proteins. They typically contain EF HAND MOTIFS. Calcium Binding Protein,Calcium-Binding Protein,Calcium Binding Proteins,Binding Protein, Calcium,Binding Proteins, Calcium,Protein, Calcium Binding,Protein, Calcium-Binding
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D004717 Endometrium The mucous membrane lining of the uterine cavity that is hormonally responsive during the MENSTRUAL CYCLE and PREGNANCY. The endometrium undergoes cyclic changes that characterize MENSTRUATION. After successful FERTILIZATION, it serves to sustain the developing embryo. Endometria
D004815 Epidermal Growth Factor A 6-kDa polypeptide growth factor initially discovered in mouse submaxillary glands. Human epidermal growth factor was originally isolated from urine based on its ability to inhibit gastric secretion and called urogastrone. Epidermal growth factor exerts a wide variety of biological effects including the promotion of proliferation and differentiation of mesenchymal and EPITHELIAL CELLS. It is synthesized as a transmembrane protein which can be cleaved to release a soluble active form. EGF,Epidermal Growth Factor-Urogastrone,Urogastrone,Human Urinary Gastric Inhibitor,beta-Urogastrone,Growth Factor, Epidermal,Growth Factor-Urogastrone, Epidermal,beta Urogastrone
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D015232 Dinoprostone The most common and most biologically active of the mammalian prostaglandins. It exhibits most biological activities characteristic of prostaglandins and has been used extensively as an oxytocic agent. The compound also displays a protective effect on the intestinal mucosa. PGE2,PGE2alpha,Prostaglandin E2,Prostaglandin E2alpha,PGE2 alpha,Prepidil Gel,Prostaglandin E2 alpha,Prostenon,E2 alpha, Prostaglandin,E2, Prostaglandin,E2alpha, Prostaglandin,Gel, Prepidil,alpha, PGE2,alpha, Prostaglandin E2
D017302 Annexins Family of calcium- and phospholipid-binding proteins which are structurally related and exhibit immunological cross-reactivity. Each member contains four homologous 70-kDa repeats. The annexins are differentially distributed in vertebrate tissues (and lower eukaryotes) and appear to be involved in MEMBRANE FUSION and SIGNAL TRANSDUCTION. Annexin,Annexin A11,Annexin A8,Annexin B10,Annexin B9,Annexin IX,Annexin VIII,Annexin X,Annexin XI,Calcimedin,Calcimedins,Calelectrins,Calpactins,Lipocortins,Calelectrin,Calpactin,Chromobindins,Lipocortin

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