Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA107577 | ENA |
REPOSITORIES: ENA
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Project description:The human papillomavirus virus (HPV) is a proven cause of most human cervical cancers, and might have a role in other malignancies including vulva, skin, oesophagus, head and neck cancer. HPV has also been speculated to have a role in the pathogenesis of lung cancer. To validate the hypothesis of HPV involvement in small cell lung cancer pathogenesis we performed gene expression profile of transgenic mouse model of SCLC induced by HPV-16 E6/E7 oncoproteins. Gene expression profile of SCLC has been performed using Agilent whole mouse genome (4x44k) representing ~ 41000 genes and mouse transcripts. Samples were obtained from two HPV16-E6/E7 transgenic mouse model and from littermateM-bM-^@M-^Ys normal lung.
2014-05-27 | E-GEOD-23962 | biostudies-arrayexpress
Project description:The human papillomavirus virus (HPV) is a proven cause of most human cervical cancers, and might have a role in other malignancies including vulva, skin, oesophagus, head and neck cancer. HPV has also been speculated to have a role in the pathogenesis of lung cancer. To validate the hypothesis of HPV involvement in small cell lung cancer pathogenesis we performed gene expression profile of transgenic mouse model of SCLC induced by HPV-16 E6/E7 oncoproteins.
2014-05-27 | GSE23962 | GEO
Project description:Background The in vivo properties of HR-HPV E6 and E7 oncoproteins have been previously evaluated through the generation and characterization of HPV transgenic mouse strains. Although K14E6 transgenic mice develop spontaneous tumors of the skin epithelium, no spontaneous reproductive tract malignancies arise, unless the transgenic mice were treated chronically with 17β-estradiol. Taken together, these findings suggest that E6 performs critical functions in normal adult cervix and skin, highlighting the need to define E6-controlled transcriptional programs in these tissues. We evaluated the different expression profile of 14,000 genes in skin or cervix from young K14E6 transgenic mice compared with corresponding tissues from non-transgenic (FVB) mice. Result Microarray analysis identified a total of 676 and 1154 genes that were significantly up and down-regulated, respectively, in skin from K14E6 transgenic mice. On the other hand, in cervix from K14E6 transgenic mice we found that only 97 and 252 genes were significantly up and down-regulated, respectively. One of the most affected processes in the skin from K14E6 transgenic mice was the cell cycle. We also found that skin from transgenic mice showed down-regulation in pro-apoptotic genes expression, particularly in those related to the extrinsic apoptotic pathway. In contrast, we observed up-regulation of anti-apoptotic genes. Another pathway that was severely affected in skin was the immune response. In cervix from transgenic mice, we could not find affected any gene related to the cell cycle and apoptosis pathways. Interestingly, we observed alterations in the expression of immune response genes in cervix from K14E6 transgenic mice. Pathways such as angiogenesis, cell junction, cytoskeleton, keratinocyte differentiation and epidermis development, showed different gene expression in skin or cervix from K14E6 transgenic mice. Conclusion Alterations in gene expression identified in the current study might partially explain why our K14E6 transgenic mice present a more aggressive phenotype in the skin than in the cervix. Expression of the HPV16 E6 oncoprotein alters expression of genes that fell into several functional groups providing insights into pathways by which E6 deregulate cell cycle progression, apoptosis and the host resistance to infection and immune function, providing new opportunities for early diagnostic markers and therapeutic drug targets. Keywords: Human_papillomavirus, transgenic mice, expression profile
2008-09-01 | GSE10702 | GEO
Project description:Background; The in vivo properties of HR-HPV E6 and E7 oncoproteins have been previously evaluated through the generation and characterization of HPV transgenic mouse strains. Although K14E6 transgenic mice develop spontaneous tumors of the skin epithelium, no spontaneous reproductive tract malignancies arise, unless the transgenic mice were treated chronically with 17β-estradiol. Taken together, these findings suggest that E6 performs critical functions in normal adult cervix and skin, highlighting the need to define E6-controlled transcriptional programs in these tissues. We evaluated the different expression profile of 14,000 genes in skin or cervix from young K14E6 transgenic mice compared with corresponding tissues from non-transgenic (FVB) mice. Result; Microarray analysis identified a total of 676 and 1154 genes that were significantly up and down-regulated, respectively, in skin from K14E6 transgenic mice. On the other hand, in cervix from K14E6 transgenic mice we found that only 97 and 252 genes were significantly up and down-regulated, respectively. One of the most affected processes in the skin from K14E6 transgenic mice was the cell cycle. We also found that skin from transgenic mice showed down-regulation in pro-apoptotic genes expression, particularly in those related to the extrinsic apoptotic pathway. In contrast, we observed up-regulation of anti-apoptotic genes. Another pathway that was severely affected in skin was the immune response. In cervix from transgenic mice, we could not find affected any gene related to the cell cycle and apoptosis pathways. Interestingly, we observed alterations in the expression of immune response genes in cervix from K14E6 transgenic mice. Pathways such as angiogenesis, cell junction, cytoskeleton, keratinocyte differentiation and epidermis development, showed different gene expression in skin or cervix from K14E6 transgenic mice. Conclusion; Alterations in gene expression identified in the current study might partially explain why our K14E6 transgenic mice present a more aggressive phenotype in the skin than in the cervix. Expression of the HPV16 E6 oncoprotein alters expression of genes that fell into several functional groups providing insights into pathways by which E6 deregulate cell cycle progression, apoptosis and the host resistance to infection and immune function, providing new opportunities for early diagnostic markers and therapeutic drug targets. Experiment Overall Design: We compared the expression paterns in the skin and cervix of K14E6 transgenic mice against the same tissues from non-transgenic FVB mice. For each tissue, we pooled total RNA from three different 6 week virgin mice. Total RNA from the cervix and lower reproductive tract and dorsal skin were obtained from fresh frozen tissue using Trizol. Total RNA was processed an hybridized onto Affymetrix Mouse Genome 430A 2.0 Arrays. For each sample, a technical replica was included.
2008-10-25 | E-GEOD-10702 | biostudies-arrayexpress
Project description:Affymetrix Mouse Genome 430 2.0 arrays were used to measure genome-wide gene expression levels. The results show that high-risk human papillomavirus oncogenes E6 and E7 reprogram the cervical cancer microenvironment independently of and synergistically with estrogen, a critical co-factor in cervical cancer development and maintenance. Several potential estrogen-induced paracrine-acting factors were identified in the expression profile of the cervical tumor microenvironment. The microenvironment of estrogen-treated HPV-transgenic mice was significantly enriched for chemokine/cytokine activity and inflammatory and immune functions associated with carcinogenesis.
2018-01-09 | GSE102232 | GEO
Project description:Global long non-coding RNA (lncRNA) expression profile in primary human keratinocytes post-expression of high-risk HPV-16 E6 oncoprotein Purpose: The goal of this study is to utlize high-throughput RNA sequencing (RNA-seq) to identify differentially expressed host lncRNAs with the presence of the high-risk HPV-16 E6 oncoprotein in primary human foreskin keratinocytes. Methods: Primary human foreskin keratinocytes (HEKa) stably expressing HPV-16 E6 compared to GFP control were analyzed, in triplicates, by RNA-seq (Illumina). qRT-PCR validation was performed using SYBR Green assays. Results: 151 up- and 100 down-regulated host lncRNAs were altered greater than 1.5-fold change in HEKa expressing HPV-16 E6 compared to GFP control cells. Altered expression of 16 genes (8 up- and 8 down-regulated) were confirmed by qRT-PCR, demonstrating the high-degree of sensitivity of the RNA-seq method. Conclusions: Our study represents the first global screening of host lncRNAs altered specifically by HPV-16 E6 oncoprotein expression.
2018-10-31 | GSE115334 | GEO
Project description:The K14E6 transgenic mice develop skin hyperplasia, benign tumors, and cancer in the dorsal skin spontaneously. The E6 oncoprotein own its tumorigenic potential to a region located near the C-Terminal domain, better known as the PDZ ligand-domain. The aim of this work was to describe early cellular processes affected by the E6’s PDZ ligand-domain when is expressed in the skin of transgenic mice using microarray technology. Results. A total of 222 genes were differentially expressed (FC:1.5, Adj.p.value <0.05, and b value > 0.5) in the skin of K14E6 mice as compared to K14E6Δ146-151 mice. Out of those, 70 genes were up-regulated and 151 genes were down-regulated. Enzyme linked receptor protein signaling was the most affected process in our data, followed by cell adhesion, development, and lipid biosynthesis. We also found that the K14E6 strains induces the mRNA of the wound-inducible gene K6b, and delocalizes E-cadherin protein in the entire epidermis. Finally, CD34 and K15 epidermal stem cell marker proteins diminish its expression in the skin, in a PDZ-dependent manner. Conclusions. The PDZ ligand-domain of HPV16-E6 oncoprotein affects the expression of several genes involved in cellular processes that could be relevant in the HPV-induced carcinogenesis. Since HPV16-E6 oncoproteins lacking the PDZ ligand-domain loose its oncogenic potential, the knowledge of genes transcriptionally affected by the E6’s PDZ ligand-domain will provide valuable information about HPV-induced skin carcinogenesis.
2017-11-30 | GSE99868 | GEO
Project description:In the preset study we isolated and characterized exosomes from both HPV positive and negative cervical cancer cell lines and identified a subset of mRNA’s enriched specifically in HPV positive exosomes through deep sequencing methods. Potential target prediction gene ontology, KEGG pathway analysis revealed possible functions associated with differentially expressed genes of CaCx exosomes. Profiling of these exosomes also revealed the export of HPV 16 associated transcripts (E1,E2, E5, and L2) within SiHa exosomes, however no such export was observed for major oncogenic transcripts (E6 and E7). Our Reverse transcription PCR experiments could validate our deep sequencing results for the absence of E6, E7 transcripts in exosomes. Interestingly, PCR could amplify a truncated version of E6 transcript in HeLa exosomes, which was not detectable in our sequencing results.
2022-06-01 | GSE161875 | GEO
Project description:Human papillomaviruses (HPV) preferentially infect keratinocytes of mucous membranes or skin and cause numerous benign and malignant lesions at different anatomical locations. We sequenced small RNA (sRNA) libraries of two HPV 16 immortalized cell lines and ten formalin fixed paraffin embedded (FFPE) tissue samples from HPV infected cervical epithelium by SOLiD 4 technology.
2020-06-30 | GSE62239 | GEO
Project description:The high-risk subgroup of Human papilloma viruses (HPVs), exemplified by HPV16/18, are causally linked to human cancers of the anogenital tract, skin, and upper aerodigestive tract. The high-risk HPV oncoproteins E6 and E7 are expressed from a polycistronic transcript that can potentially give rise to alternatively spliced E6 mRNAs, a process important for E6 and E7 expression and oncogenic transformation. Previously, we identified ECD, the human homologue of the Drosophila ecdysoneless gene, as a novel HPV16 E6-interacting protein using Yeast two-hybrid system. Here, we show that the C-terminal region of ECD selectively binds to high-risk but not to low-risk HPV E6 proteins. We demonstrate that ECD is overexpressed in HPV+ as well as HPV- cervical and head and neck patient tumor samples. Using the TCGA dataset, we show that ECD mRNA overexpression predicts shorter survival in these cancer patients. Recent work from our laboratory showed that ECD associates with several components of RNA biogenesis/splicing machinery and are involved in mRNA export. Here, we show that ECD is an RNA binding protein and regulates mRNA splicing. RNAseq analyses of SiHa cells upon ECD knockdown (KD) revealed alterations of many cellular pathways with prominent downregulation of components of the mRNA splicing machinery. Further investigation revealed that ECD KD resulted in dysregulation of E6 RNA splicing, resulting in decreased E7 and increased RB protein. Furthermore, ECD KD dysregulated several cellular mRNAs known to be critical for HPV oncogenesis. Finally, we demonstrate that while ECD KD in cervical cancer cell lines led to a reduction in oncogenic traits, ECD overexpression together with E7 led to the immortalization of keratinocytes. Taken together, our results support a novel role of ECD in transcription and in viral and cellular mRNA splicing to support HPV-driven oncogenesis.
2022-06-01 | GSE174317 | GEO