Gene expression profiles of mouse cervical primary cells
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE87075 | GEO | 2019/09/01
REPOSITORIES: GEO
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Project description:The cellular origin of cervical cancers remains unclear. Revealing molecular details of transformation in this tissue has been hampered by the lack of culture systems, resembling the in vivo cervical architecture. Here we established a long-term in vitro 3D cervical organoid model derived from stem cells of human or mouse cervical tissue which recapitulates the in vivo stratified ectocervical and columnar endocervical epithelium. Stratified and columnar cervical epithelia arise from two discrete unipotent stem cell populations of the endocervix. Unique stem cell signatures reveal a dependency on intrinsic Notch and Wnt microenvironmental signals. The genetic signatures of KRT5+ stratified vs KRT7+ columnar cervical cells establish discrete groups of cervical cancer of the squamous and adenocarcinoma types, respectively. Cervical tissue morphology is guided by the interplay of two discrete unipotent cervical stem cell populations and the spatio-temporal distribution of signals from the stroma.
2019-09-01 | GSE87074 | GEO
Project description:Cervical cancer is a common gynecological malignancy, often caused by high-risk human papillomavirus. There is a paucity of human-derived culture systems to study cervical epithelium and the cancers derived thereof. Here, we describe a long-term culturing protocol for ecto- and endocervical epithelia, which generates 3D organoids that stably recapitulate the two tissues of origin. In the example of successful HSV-1 infection, we show that the organoid-based cervical models serve as promising platforms for studying sexually transmitted pathogens. Starting from Pap-brush material, a small biobank of patient-derived tumoroids was established that retained the causative HPV genomes. One of these uniquely carried the poorly characterized HPV30 subtype, implying a potential role in carcinogenesis. The tumoroids displayed differential responses to common chemotherapeutics and grew as xenografts in mice. This study describes an experimental platform for cervical (cancer) research and for future personalized medicine approaches. Purpose: Transcriptome analysis was performed on organoids/tissues derived from human ecto- and endocervix as well as associated malignancies to characterize the new organoid-based platform. Methods: Ectocervical organoids and tumoroid lines were cultured in M7 media, whereas endocervical organoids in M7+4 media prior harvesting for RNA extraction (see paper for details). Additionally, RNA was extracted from healthy ecto-and endocervical tissue biopsies as well as from primary cells collected via Pap brush method from cervical cancer patients. The libraries were prepared by the Utrecht Sequencing Facility (USEQ) based on polyA enrichment. Sequencing was performed on an Illumina NextSeq500 by using 75-bp single-end or paired-end sequencing. Reads were aligned to the human reference genome (GRCh37) using Burrows-Wheeler Aligner (BWA) (v0.5.9). Viral sequences of different HPV subtypes were detected in the RNA-seq data of the different tumoroid lines and tissues by using VirusSeq-CLI, a wrapper around the VirusSeq pipeline. Results: Ectocervical and endocervical organoids display distinct transcriptomic profiles that can be maintained in cultures for long term. Similarily, the the gene expression profile of tumor organoids clusters apart from healthy counterparts and shows evident tumor-like characteristics. Tumor organoids show expression of causative HPV oncogenes.
2021-03-05 | GSE168244 | GEO
Project description:Endocervical mucus changes play a key role in regulating fertility throughout the menstrual cycle and in response to hormonal contraceptives. Non-human primates (NHP) provide the most translational animal model for reproductive tract studies, as they have hormonally-regulated menstrual cycles and mucus changes, similar to women. We used TMT labelling and LC-LC/MS to compare the proteins found in the mucus of the rhesus macaque to the mucus of the human endocervix. We found 3,048 total proteins present in both rhesus mucus and human mucus, and of these, 57% showed a similar expression pattern. An even higher similarity occurred in the top 500 most prevalent proteins, with overlap in 341 (68%) proteins. Mucin MUC5B was the most highly expressed mucin protein (top 10 expressed proteins in both) but other key proteins related to mucus structure were present in both samples. We find that the mucus proteome of the endocervical mucus is highly conserved in NHP and women. This supports use of the NHP model system for studies of the endocervix and trials of novel fertility treatments targeting the cervix.
2021-05-21 | PXD021710 | Pride
Project description:The transition zones (TZs) of the squamous and columnar epithelium constitute hotspots for the emergence of cancers, often preceded by metaplasia, where one epithelial type is replaced by cells of another type. Yet, it remains uncertain how the spatial organization of the epithelia is maintained and how the TZ niche is remodeled during metaplasia. Here, we used single-cell RNA-sequencing to characterize subpopulations of the epithelium as well as the underlying stromal compartment of endo and ectocervix, encompassing the TZ. Mouse lineage tracing, organoid culture and smRNA-ISH revealed that the two epithelia derive from two separate cervix-resident lineage-specific stem cell populations that are regulated by opposing WNT signals from the stroma. Using a mouse model of cervical metaplasia, we further show that the endocervical stroma undergoes remodeling and increased expression of WNT signaling inhibitor Dickkopf-2 (DKK2), promoting the outgrowth of ectocervical stem cells. Thus, homeostasis at the TZ results from divergent stromal signals, driving the differential proliferation of resident epithelial lineages.
2020-12-26 | GSE128987 | GEO
Project description:Whole transcriptome amplification of RNA purified from cervical explants (endocervix/ectocervix) cultured with different forms of HIV (free, complement opsonized and complement and antibody opsonized HIV) or mock treated for 6h or 24h.
2021-05-11 | GSE160774 | GEO
Project description:We conducted a prospective, open-label study to determine the effect of the NuvaRing on gene expression in the endocervix and immune-related protein expression in cervicovaginal secretions. Women provided endocervical cytobrush samples during the luteal and follicular phases of the menstrual cycle (as determined by progesterone levels) as well as during NuvaRing use. Gene expression was measured using Illumina Human HT12 v4 BeadChip microarrays. We compared the NuvaRing visit to each phase of the menstrual cycle separately, as well as follicular and luteal phase samples to each other, adjusting for technical batch, presence of blood in vaginal discharge, and BV status by Nugent score, and blocking on participant. We found that gene expression in the endocervical canal changed across the menstrual cycle and in response to NuvaRing use. In particular, we observed a continuum of expression of immune-related genes and gene sets in the endocervical canal: highest during NuvaRing use, intermediate in the follicular phase, and lowest in the luteal phase.
2020-12-30 | GSE142058 | GEO
Project description:Despite major advances with embryonic and induced pluripotent stem cells or lineage-committed, p63-expressing stem cells of stratified epithelia, we know less about the indigenous stem cells of the gastrointestinal tract, pancreas, liver, and other columnar epithelia which collectively resist cloning in their elemental states. Here we demonstrate the cloning of highly immature epithelial stem cells from defined regions of the human intestine and colon. In this study, we have isolated ileal stem cells and performed air-liquid interface method to induce differentiation of human ileal stem cells. The differentiated structure showed villi-like epithelia which contains enterocytes, goblet cells, endocrine cells and paneth cells.
2015-05-29 | GSE66115 | GEO
Project description:Despite extensive studies suggesting increased susceptibility to HIV during the secretory phase of the menstrual cycle, there is limited knowledge of the molecular mechanisms involved. We aimed to explore the ectocervical and endocervical tissue transcriptomes during the proliferative and secretory phases of the cycle using RNA sequencing (RNAseq) to identify potential signatures of susceptibility to HIV. We utilized hysterectomy tissue specimens from subjects not using hormonal contraception/treatment for gynecological conditions. Ectocervical (n=10) and endocervical tissues (n=15) were used for this study. The cycle phase was determined by assessing the histopathology of hematoxylin-and-eosin stained sections of the endometrial mucosa by gynecologic pathologists. Total RNA was isolated from tissues frozen in RNAlater (Ambion) following manufacturer’s instructions (Qiagen RNeasy Fibrous Tissue Mini Kit). After extraction, the quality and the purity of the RNA were measured by the Agilent Bioanalyzer (Agilent, Santa Clara, CA). RNA was labeled and sequenced at the RU Genomics center by using Illumina TruSeq technology (75bp, >30M coverage). The data were analyzed using Ingenuity Pathway Analysis (IPA) software (QIAGEN Inc., https://www.qiagenbioinformatics.com/products/ingenuitypathway-analysis). To inquire into changes in gene expression irrespectively of p-value cut off, pre-ranked genes based on proliferative vs. secretory phase expression were subjected to Gene Set Enrichment Analysis (GSEA) against the Hallmark Gene sets (H) and Immunologic Signatures Gene sets (collection C7) from the Molecular Signatures Database (MSigDB)(http://software.broadinstitute.org/gsea/msigdb/index.jsp). Our data show menstrual cycle phase-associated changes in the transcriptomic landscape of the endocervix and ectocervix, some of which may contribute to changes in HIV susceptibility.
2019-09-25 | GSE122248 | GEO
Project description:HIV-1 infections of women are mainly acquired through female reproductive tract where cervical and vaginal epithelial cells are the first line of defense. Although HIV-1 does not directly infect epithelial cells, HIV-1 obligatorily interacts with and crosses over epithelial layer to infect susceptible target cells, mainly CD4+ T cells, in the lamina propria to initiate an infection. However, the mechanism and ramification of the interaction of HIV-1 and epithelial cells in vaginal transmission of HIV-1 remain to be elucidated. We hypothesized that cervical epithelial cells are not a passive barrier, but actively respond to HIV-1 to change mucosal milieu and facilitate HIV-1 transmission. We tested this hypothesis by studying the responses of cervical epithelial cells to HIV-1 through profiling genome-wide transcription. We found 1) cervical epithelial cells actively respond to HIV-1. Five hundred forty-three transcripts/genes in cervical epithelial cells were significantly altered in expression at four hours post exposure to HIV-1, of which many relate to important signaling pathways, such as innate immune responses, pattern recognition receptors, apoptosis, biosynthesis, and energy production, 2) HIV-1 increases the expression of CXC Chemokines (IL-8, CXCL1 and CXCL3) in cervical epithelial cells. IL-8 and CXCL1 are potent chemotactic for multinuclear neutrophils (MNP), monocytes and a minority of lymphocytes, and CXCL3 is predominant chemotactic for monocytes, 3) HIV-1 increases the expression of key inflammatory enzymes-COX-1 and COX-2. COX-1 is responsible for the production of prostaglandins that are important for homeostatic functions, and COX-2 is a key enzyme to convert arachidonic acid to prostaglandins, key inflammatory mediators, and 4) the increased expression of IL-8 and COX-2 revealed using microarray analysis was mapped into the endocervical epithelial cells of macaques inoculated with inactivated SIV in vivo. Our date lead to a role model of epithelial cells in HIV-1 vaginal transmission, that is the axis of HIV-1, epithelial cells, proinflammatory molecules (IL-8, CXCL1, CXCL3, COX-1 and COX-2), cell recruitment (MNP, monocytes and T cells), and inflammation. This model implies that moderating epithelial proinflammatory response to HIV-1 may be utilized in prevention of HIV vaginal transmission. Human endocervical epithelial cell line, CRL-2615, was inoculated with HIV-1 ME1 and collected 4hrs post exposure. Biologically duplicated mRNAs were prepared after exposure.
2013-02-01 | E-GEOD-42291 | biostudies-arrayexpress
Project description:Certain types of Human papilloma viruses (HPV) are the etiological agents for cervical cancer. However, not all infections of high-risk HPVs will finally lead to cancer since most HPV infections are cleared without any consequences. Chlamydia trachomatis is the most prevalent sexual transmitted bacteria and is an obligatory intracellular pathogen exhibiting tropism in endocervical epithelial cells. Over the past decades, C. trachomatis is thought to be a potential co-factor for cervical cancer formation, but there are also studies that did not show such a correlation. To address this question in molecular terms, we stably expressed HPV16 E6 and E7 in spontaneously immortalized NOKs (normal oral keratinocytes) and performed SILAC (stable isotope labeling by amino acids in cell culture) with or without C. trachomatis infection to study the impact of HPV16 oncogene expression and C. trachomatis infection on host proteome changes.
2019-03-18 | PXD012186 | Pride