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Folate deficiency and repletion affects DNA stability and cellular growth of HPV16-immortalized human keratinocytes

ABSTRACT: Folate deficiency and repletion affects DNA stability and cellular growth of HPV16-immortalized human keratinocytes

PROVIDER: PRJEB25728 | ENA |

REPOSITORIES: ENA

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Folate modulation induces chromosomal instability and higher proliferation of immortalized human keratinocytes

Project description:Gene expression variation upon folate deficiency and repletion in human foreskin keratinocytes immortalized by HPV16E6E7

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Differentiation resistant HPV16-immortalized keratinocytes: Six1 transfected vs. Control.

Project description:The overexpression of Six1, a member of the Six family of homeodomain transcription factors, has been found in various human cancers, and is associated with tumor progression and metastasis. We previously determined that the expression of Six1 mRNA increased during in vitro progression of human papillomavirus type 16 (HPV16)-immortalized human keratinocytes (HKc/HPV16) toward a differentiation-resistant (HKc/DR) phenotype. However, if Six1 promotes HPV16-mediated transformation or not remains unknown. HKc/DR were transfected with a Six1 or control vector and RNA isolated from these cells were used in an Agilent two-color gene expression profiling experiment. The goal was to determine the effects of Six1 on global gene expression.

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Gene expression of cervical cells and immortalized keratinocytes transfected with whole genomes of HPV16 and HPV18

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Project description:We used freshly established immortalized human keratinocytes with a well-defined HPV16 E6 E7 expression cassette to get a more complete and less biased overview about global changes induced by HPV16 using RNA-seq. We identified novel factors regulated by HPV oncogenes that could serve an essential role in cancer development.

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Impact of HPV16 E6 and E7 oncogenes together with Chlamydia trachomatis infection on proteome changes in immortalized oral keratinocytes

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

Dietary folate depletion and repletion

Project description:This SuperSeries is composed of the following subset Series: GSE9242: Dietary folate depletion and repletion in A/J and C57BL/6J mice GSE9243: Dietary folate depletion and repletion in C57BL/6J mice, ApoE knockout mice, and choline supplemented C57BL/6J mice Keywords: SuperSeries Refer to individual Series

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Analysis of gene expression in primary human foreskin keratinocytes (HFK) +/- HPV16 E7

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