The contraceptive effectiveness of intrauterine devices has been attributed in part to effects of a foreign body reaction on the endometrium. We performed this study to identify compare the effects on the endometrial transcriptome of intrauterine devices and combined oral contraceptives, to better understand their mechanisms of action. We collected endometrial and cervical biopsies from women using the levonorgestrel-intrauterine device, copper intrauterine device or levonorgestrel-containing combined oral contraceptives, and from women not using contraceptives (control group). Transcriptional profiling was performed with Affymetrix arrays, Principal Component Analysis and the bioconductor package limma. Pathway analysis was performed using EnrichR and Reactome 2016. In endometrial samples from copper intrauterine device users (n=13), there were no genes with statistically significant differential expression compared to controls (n=11), whereas in levonorgestrel-intrauterine device users (n=11), 2509 genes were significantly dysregulated and mapped onto several immune and inflammatory pathways. In combined oral contraceptive users (n=12), 133 genes were significantly dysregulated and mapped predominantly onto pathways involving regulation of metal ions. Both levonorgestrel-intrauterine device and combined oral contraceptive use were associated with significant downregulation of members of the metallothionein gene family. In cervical samples, none of the groups showed statistically significant differential gene expression compared to controls. In conclusion, hormonal and copper intrauterine devices differ significantly in their effects on the endometrial transcriptome, with endometrium from copper intrauterine device users being indistinguishable from luteal phase endometrium. These results suggest that the contraceptive mechanisms of intrauterine devices are unlikely to rely on a common pathway involving a foreign body reaction in the endometrium.
Differential Effects of the Hormonal and Copper Intrauterine Device on the Endometrial Transcriptome.
Age, Specimen part
View SamplesHerein, we investigated eMSC and eSF freshly isolated from endometrium from women with and without endometriosis and compared them to their respective short- and long-term cultures and subsequent decidualization response to progesterone.
Human Endometrial Fibroblasts Derived from Mesenchymal Progenitors Inherit Progesterone Resistance and Acquire an Inflammatory Phenotype in the Endometrial Niche in Endometriosis.
Age, Specimen part, Disease
View SamplesThe sense of hearing depends on the faithful transmission of sound information from the ear to the brain by spiral ganglion (SG) neurons. However, how SG neurons develop the connections and properties that underlie auditory processing is largely unknown.
Developmental profiling of spiral ganglion neurons reveals insights into auditory circuit assembly.
Specimen part
View SamplesWe have analysed the activity of the nuclear exosome during meiosis by deletion of TRF4, which encodes a key component of the exosome targeting complex TRAMP. We find that TRAMP mutants produce high levels of CUTs during meiosis that are undetectable in wild-type cells, showing that the nuclear exosome remains functional for CUT degradation. Lack of TRAMP activity stabilises ~1600 CUTs in meiotic cells, which occupy 40% of the binding capacity of the nuclear cap binding complex (CBC). Overall design: One sample each of Cbc2-associated RNA from wild-type and trf4-deleted cells at 6 hours of meiosis
The nuclear exosome is active and important during budding yeast meiosis.
Subject, Time
View SamplesDecidual macrophage populations, CD11cHI and CD11cLO cells were analyzed for expression profiles and unique characteristics.
Two unique human decidual macrophage populations.
Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Brain iron accumulation affects myelin-related molecular systems implicated in a rare neurogenetic disease family with neuropsychiatric features.
Sex, Age, Specimen part, Disease
View SamplesDifferential gene expression is assessed in substantia nigra and basal ganglia of neurodegenertion with brain iron accumulation cases (BIA) compared to matched normal controls (c).
Brain iron accumulation affects myelin-related molecular systems implicated in a rare neurogenetic disease family with neuropsychiatric features.
Sex, Age, Specimen part, Disease
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Integrative DNA methylation and gene expression analyses identify DNA packaging and epigenetic regulatory genes associated with low motility sperm.
No sample metadata fields
View SamplesUsing 5 differents approaches, including RNA sequencing, we demonstrated that macrophages that specifically infiltrate renal tumors, express the immunosuppressive transcription factor Foxp3. Overall design: Examination of the Foxp3 mRNA expression in 3 different cell subsets (including CD4 T cells (CD4), type-1 macrophages (M1) and type-2 macrophages (M2))
Foxp3 expression in macrophages associated with RENCA tumors in mice.
No sample metadata fields
View SamplesRNA localization is a fundamental mechanism for controlling the spatial regulation of protein synthesis within cells, as well as differential cell fates during early development. Localized RNAs are known to control critical aspects of early Xenopus development, but few have been studied in detail. We set out to identify novel transcripts localized to the vegetal cortex of Xenopus oocytes, one of the best-studied examples of RNA localization. We identified over 400 transcripts enriched in the vegetal cortex, compared with whole oocytes. Included were many novel genes, as well as known genes not thought to undergo RNA localization. These data suggest that the role of RNA localization in early development is extensive and will provide a resource for identifying candidate regulatory genes for early developmental processes.
Identification of germ plasm-associated transcripts by microarray analysis of Xenopus vegetal cortex RNA.
Specimen part, Treatment
View Samples