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Homo sapiens

ABSTRACT: Pathogen-host transcriptome analyses of human papillomavirus 16 E6 variants in an organotypic epithelial model

PROVIDER: PRJNA275642 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR1806313_1.fastq.gz	Fastqsanger.gz
	SRR1806313_2.fastq.gz	Fastqsanger.gz
	SRR4771874_1.fastq.gz	Fastqsanger.gz
	SRR4771874_2.fastq.gz	Fastqsanger.gz
	SRR4784226_1.fastq.gz	Fastqsanger.gz

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Expression signatures and cytogenetic aberrations in HPV16 E6, E7 and E6/E7-positive immortalized human epithelial cells

Project description:Identification of genetic/cytogenetic alterations and differentially expressed cellular genes in HPV16 E6, E7 and E6/E7 positive human foreskin keratinocytes Keywords: ordered We used microarrays to identify differentially expressed genes in human foreskin keratinocytes (HFK) transfected with retroviral vectors harboring the human papillomavirus type 16 oncogenes E6, E7, or E6/E7 in comparison to HFK containing the empty vector control pLXSN.

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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.

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Long non-coding RNA FAM83H-AS1 is regulated by human papillomavirus 16 E6 independently of p53 in cervical cancer cells

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.

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Changes in global gene expression profiles induced by HPV 16 E6 oncoprotein variants in cervical carcinoma C33-A cells

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Changes in global gene expression profiles induced by HPV 16 E6 oncoprotein variants in cervical carcinoma C33-A cells

Project description:We analyzed the effects of the expression of HPV 16 E6 oncoprotein variants (AA-a, AA-c, E-A176/G350, E-C188/G350, E-G350), and the E- Prototype in global gene expression profiles in an in vitro model. E6 gene was cloned into an expression vector fused to GFP and was transfected in C33-A cells. Affymetrix GeneChip Human Transcriptome Array 2.0 platform was used to analyze the expression of over 245,000 coding transcripts. We found that HPV16 E6 variants altered the expression of 431 genes in comparison with EPrototype. The altered genes are involved in cellular processes related to the development of cervical carcinoma, such as adhesion, angiogenesis, apoptosis, differentiation, cell cycle, proliferation, transcription and protein translation. Our results show that polymorphic changes in HPV16 E6 natural variants are sufficient to alter the overall gene expression profile in C33-A cells, explaining in part the observed differences in oncogenic potential of HPV16 variants. We analyzed RNA from 16 cell cultures from the cell line C33-A, with the following experimental conditions: C33-A Non-transfected (WT) and C33-A transfected with: 1) mock, 2) HPV16 E-prototype and 3) HPV16 variants: E-G350, E-A176/G350, E-C188/G350, AAa and AAc, performed by duplicate (biological replicates processed independently N=8x2); using the Affymetrix Gene Chip Human Transcriptome Array (HTA) 2.0 platform. Array signal intensities were analyzed with the Affymetrix expression console and normalized data were analyzed by Affymetrix Transcriptome Analysis Console (TAC).

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Project description:Cervical cancer is a leading cause of cancer-related death in women worldwide. Nearly all cases of cervical cancer are attributed to infection with human papillomavirus (HPV), mainly high-risk type HPV16 and HPV18. Two viral genes, E6 and E7, play an important role in viral life cycle, since they delay keratinocyte differentiation and stimulate cell cycle progression, allowing the virus to exploit host DNA replication machinery to replicate its genome. Some of the oncogenic properties of E6 and E7 are mediated by host microRNAs (miRNAs) involved in the control of cell proliferation, senescence, and apoptosis. In order to identify genome-wide changes in miRNA expression profile, miRNA microarray analysis was performed on HFKs transduced with retroviral vectors carrying E6 and E7 genes of either HPV6 or HPV16 and with the LXSN empty vector. This dataset was used to identify and to further investigate the role of miR-146a-5p in cervical cancer.

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Human Papillomavirus 16 E5 modulates the expression of host microRNAs

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