BACKGROUND Modeling early endometrial differentiation is a crucial step towards understanding the divergent pathways between normal and ectopic endometrial development as seen in endometriosis. METHODS To investigate these pathways, mouse embryonic stem cells (mESCs) and embryoid bodies (EBs) were differentiated in standard EB medium (EBM). Immunofluorescence (IF) staining and reverse-transcr...

BACKGROUND Repeated Implantation Failure (RIF) is one of the most intricate obstacles in assisted reproduction. The cytokine and chemokine composition of uterine cavity seem to play important roles in the implantation process. OBJECTIVE To compare the cytokine profile in the endometrium of normal fertile women and those with repeated implantation failure. METHODS After enzymatic digestion o...

BACKGROUND Endometrial stem/progenitor cells contribute to the cyclical regeneration of human endometrium throughout a woman's reproductive life. Although the candidate cell populations have been extensively studied, no consensus exists regarding which endometrial population represents the stem/progenitor cell fraction in terms of in vivo stem cell activity. We have previously reported that hum...

STUDY QUESTION Is epigallocatechin-3-gallate (EGCG) treatment effective in the treatment of fibrosis in endometriosis? SUMMARY ANSWER EGCG appears to have antifibrotic properties in endometriosis. WHAT IS KNOWN ALREADY Histologically, endometriosis is characterized by dense fibrous tissue surrounding the endometrial glands and stroma. However, only a few studies to date have evaluated candi...

BACKGROUND Endometriosis is a condition that affects women of reproductive age, where the glandular and/or stromal tissues from the eutopic endometrium implant in ectopic locations. It is well established that the survival of ectopic implants is due to lower levels of apoptosis, but no consensus exists as to which pathway/s this is mediated by. The ubiquitin protein shares a similar sequence ho...

BACKGROUND During early rat pregnancy, trophoblast of the tiny embryo joins with the endometrium and epithelial cells undergo apoptosis. Near the end of pregnancy, regression of the decidua basalis (DB) is also observed (from day 14 to 20). However, little is known about the intra-cellular and molecular mechanisms involved in apoptosis regulation in the uterus during pregnancy. The objective of...

Endometrial growth and repair after menstruation are associated with profound angiogenesis. Abnormalities in these processes result in excessive or unpredictable bleeding patterns and are common in many women. It is therefore important to understand which factors regulate normal endometrial angiogenesis. Vascular endothelial growth factor (VEGF) is an endothelial cell-specific mitogen that play...

BACKGROUND Although several studies have suggested that CXCL12 and its receptor, CXCR4, may play a role in embryo implantation, there are limited reports of expression of CXCR4 and CXCL12 in human endometrium. The aim of this study was to investigate CXCL12 and CXCR4 expression in human endometrium and to see if CXCL12 could affect matrix metalloproteinase (MMP) production by endometrial stroma...

aims: to evaluate the effect of mouse fallopian tube cell co-culture on the proliferation of human endometrial stromal cells. materials and methods: the endometrial cells were collected from the uterus under hysteroscopy. then the cells were isolated withcollagenase type 3 and passed within the filters with 150 and 40 micrometer sizes respectivelyand then the isolated cells were cultured in dme...

Proteinase-activated receptors (PARs) are G protein-coupled receptors activated by various proteinases. PARs play important roles in haemostasis, thrombosis, and inflammation. PAR1 and PAR2 are expressed in endometrial cells from the eutopic endometrium and endometriotic cells derived from endometriotic lesions. A typical activator of PAR1, thrombin, and a typical activator of PAR2, tryptase, a...