Project description:Endometriosis is a prevalent health condition in women of reproductive age characterized by ectopic growth of endometrial tissue in the extrauterine environment. Thorough understanding of the molecular mechanisms underlying the disease are still lacking and incomplete. We dissect eutopic and ectopic endometrial primary stromal cell proteomes to a depth of nearly 6900 proteins using quantitative mass-spectrometry with a spike-in SILAC standard. Acquired data reveal metabolic reprogramming of ectopic stromal cells of endometriosis with extensive upregulation of glycolysis and down-regulation of oxidative respiration – a wide-spread metabolic phenotype previously described in many cancers. Our results also underlie other molecular changes of ectopic endometriotic stromal cells indicating reduced apoptotic potential, increased cellular adhesiveness/invasiveness and altered immune function. The changes related to metabolism are additionally reflected by attenuated aerobic respiration of ectopic endometrial stromal cells measured by live cell oximetry and by altered mRNA levels. These comprehensive proteomics data refine the current understanding of endometriosis presenting potential new avenues for therapies.
Project description:Compulsory expression of miR-210 in normal endometrial stromal cells directed the induction of cell proliferation and vascular endothelial growth factor production, and the inhibition of apoptosis in through signal transducer and activator of transcription 3 (STAT3) activation. Accumulating evidence suggests that microRNAs play definite roles in the pathogenesis of endometriosis. The objective of the study was to determine the role of miR-210, one of the upregulated microRNA in endometriotic cyst stromal cells, in the pathogenesis of endometriosis. Downstream targets of miR-210 were identified by Compulsory expression of miR-210 in normal eutopic endometrial stromal cells, a global mRNA microarray technique, and Ingenuity pathways analysis.
Project description:Endometriosis is a prevalent health condition in women of reproductive age characterized by ectopic growth of endometrial tissue in the extrauterine environment. Thorough understanding of the molecular mechanisms underlying the disease are still lacking and incomplete. We dissect eutopic and ectopic endometrial primary stromal cell proteomes to a depth of nearly 6900 proteins using quantitative mass-spectrometry with a spike-in SILAC standard. Acquired data reveal metabolic reprogramming of ectopic stromal cells of endometriosis with extensive upregulation of glycolysis and down-regulation of oxidative respiration – a wide-spread metabolic phenotype previously described in many cancers. Our results also underlie other molecular changes of ectopic endometriotic stromal cells indicating reduced apoptotic potential, increased cellular adhesiveness/invasiveness and altered immune function. The changes related to metabolism are additionally reflected by attenuated aerobic respiration of ectopic endometrial stromal cells measured by live cell oximetry and by altered mRNA levels. These comprehensive proteomics data refine the current understanding of endometriosis presenting potential new avenues for therapies.
Project description:We utilized fluorescence-activated cell sorting to isolate endometrial stromal cells from paired endometrial and endometrioma biopsies and combined it with high-throughput sequencing to determine miRNA alterations in endometriotic stroma. The analysis revealed 149 abnormally expressed miRNAs in endometriotic lesions, including extensive upregulation of miR-139-5p and downregulation of miR-375 compared to eutopic cells. The results of this study provide further insights into the complex molecular mechanisms involved in endometriosis pathogenesis and demonstrate the necessity for cell-type specific analysis of ectopic tissues to understand the interactions between different cell populations in disease onset and progression.
Project description:Endometriosis is an inflammatory disease and bone marrow-derived cells are abundant in endometriotic lesions and in the peritoneal fluid of women with the disease. This study tested the hypothesis that reciprocal communication occurs between macrophages and cultured human endometrial stromal cells and that this communication contributes to the pathology of endometriosis. Changes in gene expression elicited by exposure to factors secreted by the opposing cell type were measured by DNA microarray to test this hypothesis. 716 named genes were differentially expressed in cultured endometrial stromal cells in response to factors secreted by macrophages. Genes that were up-regulated included IL8/CXCL8, MMP3, phospholamban, CYR61/CCN1, CTGF/CCN2, tenascin C, and NNMT, whereas integrin alpha 6 was down-regulated. In contrast, 15 named genes were differentially expressed in macrophages in response to factors secreted by cultured endometrial stromal cells. The data document reciprocal communication between macrophages and endometrial stromal cells and suggest that interaction with macrophages stimulates the expression of genes in endometrial stromal cells that contribute to migration, adhesion, invasion, neovascularization and mitosis of endometrial cells that may support the establishment of endometriosis.
Project description:Accumulating evidence suggests that microRNAs play definite roles in the pathogenesis of endometriosis. The objective of the study was to determine the role of miR-100-5p, one of the upregulated microRNA in endometriotic cyst stromal cells, in the pathogenesis of endometriosis. Downstream targets of miR-100-5p were identified by compulsory expression of miR-100-5p in normal eutopic endometrial stromal cells (NESCs), a global mRNA microarray technique, and pathways analysis.Compulsory expression of miR-100-5p in NESCs directed the induction of cell motility through SWItch/sucrose non-fermentable (SWI/SNF)-related matrix-associated actin-dependent regulator of chromatin subfamily D member 1 (SMARCD1) supression and matrix metallopeptidase 1 (MMP1) activation.
Project description:Compulsory expression of miR-210 in normal endometrial stromal cells directed the induction of cell proliferation and vascular endothelial growth factor production, and the inhibition of apoptosis in through signal transducer and activator of transcription 3 (STAT3) activation. Accumulating evidence suggests that microRNAs play definite roles in the pathogenesis of endometriosis. The objective of the study was to determine the role of miR-210, one of the upregulated microRNA in endometriotic cyst stromal cells, in the pathogenesis of endometriosis. Downstream targets of miR-210 were identified by Compulsory expression of miR-210 in normal eutopic endometrial stromal cells, a global mRNA microarray technique, and Ingenuity pathways analysis. NESCs were transfected with precursor hsa-miR-210 (Pre-miRTM miRNA precursor- hsa-miR-210, Ambion, Austin, TX, USA) or negative control precursor miRNA (Pre-miRTM miRNA precursor-negative control #1 Ambion) at a final concentration of 10 nM, using LipofectamineTM RNAiMAX (Invitrogen, Carlsbad, CA, USA). Forty-eight hours after transfection, total RNA from cultured NESCs transfected with precursor hsa-miR-210 (n=4) and NESCs (n=4) transfected with negative control precursor miRNA was extracted with an RNeasy Mini kit (Qiagen, Valencia, CA, USA). Then, the samples were subjected to a gene expression microarray analysis with a commercially available human mRNA microarray (G4845A, Human Gene Expression 4x44K v2, Agilent Technologies, Santa Clara, CA, USA).
Project description:In this study, we characterize the fusion protein produced by the EPC1-PHF1 translocation in Low Grade Endometrial Stromal Sarcoma (LG-ESS) and Ossifying FibroMyxoid Tumors (OFMT). We express the fusion protein and necessary controls in K562 Cells. The fusion protein assembles a mega-complex harboring both NuA4/TIP60 and PRC2 subunits and enzymatic activities and leads to mislocalization of chromatin marks in the genome, linked to aberrant gene expression.
Project description:It is hypothesized that impaired endometrial decidualization contributes to decreased fertility in endometriosis patients. To identify the molecular defects that underpin defective decidualization in endometriosis, we subjected endometrial stromal cells from healthy individuals or with endometriosis to time course in vitro decidualization with estradiol, progesterone, and 8-bromo-cyclic-AMP (EPC) for 2, 4, 6, or 8 days. Transcriptomic profiling identified novel differences in key pathways between normal and endometriosis, including defective bone morphogenetic protein (BMP) signaling (ID1, ID2, ID3, BMP6), altered iron transport (SLC40A1, TFRC), endometrial stem cell markers (CD44, SUSD2), and retinoid signaling pathways (RORB, ALDH1L1, RARA). Genome-wide binding analyses identified an altered genomic distribution of SMAD4 in decidualized stromal cells from endometriosis patients relative to normal individuals, with an overrepresentation of gene ontologies related to signaling by transforming growth factor β (TGFβ), neurotrophic tyrosine kinase receptors (NTRK), and nerve growth factor (NGF)-stimulated transcription. We found that direct SMAD1/5/4 target genes control FOXO, PI3K/AKT, and progesterone-mediated signaling in decidualizing cells and that BMP2 supplementation of patient-derived assembloids from endometriosis patients restored decidualization. In summary, transcriptomic and genomic profiling of patient-derived endometrial cells and assembloids identified that restoring BMP/SMAD1/5/4 signaling is crucial for engaging a robust decidualization program in women with endometriosis.
Project description:In this study, we characterize the fusion protein produced by the EPC1-PHF1 translocation in Low Grade Endometrial Stromal Sarcoma (LG-ESS) and Ossifying FibroMyxoid Tumors (OFMT). We express the fusion protein and necessary controls in K562 Cells. The fusion protein assembles a mega-complex harboring both NuA4/TIP60 and PRC2 subunits and enzymatic activities and leads to mislocalization of chromatin marks in the genome, linked to aberrant gene expression.