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Temporal- and Orbital Shear Stress-Dependent Changes in Opossum Kidney (OK) Cell Transcription

ABSTRACT: Temporal- and Orbital Shear Stress-Dependent Changes in Opossum Kidney (OK) Cell Transcription

PROVIDER: PRJNA649290 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12341175.fastq.gz	Fastqsanger.gz
	SRR12341175_1.fastq.gz	Fastqsanger.gz
	SRR12341175_2.fastq.gz	Fastqsanger.gz
	SRR12341176_1.fastq.gz	Fastqsanger.gz
	SRR12341176_2.fastq.gz	Fastqsanger.gz

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Temporal- and Orbital Shear Stress-Dependent Changes in Opossum Kidney (OK) Cell Transcription

Project description:We previously demonstrated that OK cells cultured under orbital shear stress have morphological and functional features that more closely resemble the proximal tubule in vivo. This study was designed to identify progressive transcriptional changes with increasing exposure time to shear stress and to compare the transcriptome of cells cultured under shear stress vs static conditions.

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The Transcriptome of the Didelphys virginiana Opossum Kidney OK Proximal Tubule Cell Line

Project description:The OK cell line derived from kidney of a female opossum Didelphys virginiana has proven to be a useful model in which to investigate the unique regulation of ion transport and membrane trafficking mechanisms in the proximal tubule (PT). Sequence data and comparison of the transcriptome of this cell line to eutherian mammal PTs would further broaden the utility of this culture model. However, genomic sequence for Didelphys virginiana is not available and although a draft genome sequence for the opossum Monodelphis domestica (sequenced in 2012 by the Broad Institute) exists, its relatedness and similarity of the transcriptome to the Didelphys virginiana species is not known. The Monodelphis domestica sequence is not highly annotated, and the majority of transcripts are predicted rather than experimentally validated. Using deep RNA sequencing of the Didelphys virginiana OK cell line we characterized its transcriptome using de novo transcriptome assembly and alignment to the Monodelphis domestica genome. The quality of the de novo assembled transcriptome was assessed by the extent of homology to sequences in nucleotide and protein databases. Gene expression levels in the OK cell line, from both the de novo transcriptome and genes aligned to the Monodelphis domestica genome, were compared to publicly available rat kidney nephron segment expression data. Our studies demonstrate the expression in OK cells of numerous PT specific ion transporters and other key proteins relevant for rodent and human PT function. The sequence and expression data reported here provide a new and important resource for studies on the regulation of PT mRNA and protein expression.

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Project description:The molecular pathogenesis of orbital lymphoproliferative disorders, such as immunoglobulin G4-related ophthalmic disease (IgG4-ROD) and orbital mucosa-associated lymphoid tissue (MALT) lymphoma, remains essentially unknown. Differentiation between the two disorders, which is important since work-up and treatment can vary greatly, is often challenging due to the lack of specific biomarkers. Although miRNAs play an important role in the regulation of carcinogenesis and inflammation, the relationship between miRNA and orbital lymphoproliferative diseases remains unknown. A comprehensive analysis of 2,565 miRNAs was performed in biopsied specimens and serum of 17 cases with IgG4-ROD and 21 cases with orbital MALT lymphoma. We identified specific miRNA signatures, their miRNA target pathways, and network analysis associated with IgG4-ROD and orbital MALT lymphoma. Machine-learning analysis identified miR-202-3p and miR-7112-3p as the best discriminators of IgG4-ROD and orbital MALT lymphoma, respectively. In the tissue pathway, Longevity regulating pathway in IgG4-ROD and MAPK signaling pathway in orbital MALT lymphoma were most enriched by downregulated miRNAs. This is the first evidence of the miRNA profile in biopsied specimens and serum of patients with IgG4-ROD and orbital MALT lymphoma. These data will be useful for developing diagnostic and therapeutic interventions, as well as elucidating of these disorders.

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Gene expression clusters change and molecular correlation via STING pathway between orbital MALT lymphoma and orbital IgG4-related eye diseases

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