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RNA-seq of the lacrimal gland epithelial tissue in control vs Pea3-depleted tissue in mouse embyro

ABSTRACT: RNA-seq of the lacrimal gland epithelial tissue in control vs Pea3-depleted tissue in mouse embyro

PROVIDER: PRJNA471632 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR7170030.fastq.gz	Fastqsanger.gz
	SRR7170031.fastq.gz	Fastqsanger.gz
	SRR7170032.fastq.gz	Fastqsanger.gz
	SRR7170033.fastq.gz	Fastqsanger.gz
	SRR7170034.fastq.gz	Fastqsanger.gz

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RNA-seq of the lacrimal gland epithelial tissue in control vs Pea3-depleted tissue in mouse embyro

Project description:The goal of the study is to find the transcriptional targets downstream of Pea3-mediated signaling in the lacrimal gland epithelium. In order to look for the potential targets, we performed laser capture microdissection of the lacrimal gland epithelial tissue at embryonic day E14.5 from control embryos as well as mutant embryos containing epithelium-specific deletion of Pea3. After tissue harvest, RNA was extracted. Conversion to cDNA as well as amplification was performed by Clontech SMART-seq v4 Ultra low input RNA kit, as well as cDNA library construction was performed using Nextera XT DNA library preparation kit by core facility at Columbia university prior to RNA sequencing. After preparation of cDNA library, each sample was sequenced using Illumina platform.

2018-08-29 | GSE114509 | GEO

Human Lacrimal Gland Gene Expression

Project description:Background: The study of human lacrimal gland biology and development is limited. Lacrimal gland tissue is damaged or poorly functional in a number of disease states including dry eye disease. Development of cell based therapies for lacrimal gland diseases requires a better understanding of the gene expression and signaling pathways in lacrimal gland. Differential gene expression analysis between lacrimal gland and other embryologically similar tissues may be helpful in furthering our understanding of lacrimal gland development. Methods: We performed global gene expression analysis of human lacrimal gland tissue using Affymetrix ® gene expression arrays. Primary data from our laboratory was compared with datasets available in the NLM GEO database for other surface ectodermal tissues including salivary gland, skin, conjunctiva and corneal epithelium. Results: The analysis revealed statistically significant difference in the gene expression of lacrimal gland tissue compared to other ectodermal tissues. The lacrimal gland specific, cell surface secretory protein encoding genes and critical signaling pathways which distinguish lacrimal gland from other ectodermal tissues are described. Conclusions: Differential gene expression in human lacrimal gland compared with other ectodermal tissue types revealed interesting patterns which may serve as the basis for future studies in directed differentiation among other areas.

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Project description:The transcriptional expression analysis of 17.5, 19.5 days embryonic lacrimal gland (LG), adult lacrimal gland, lacrimal gland stem cells (LGSCs) P2 cultured for 5, 7, 10, 14 days and LGSCs P6, P10, P20 cultured for 7 days, respectively.

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Project description:Human lacrimal gland tissue and organoids, cultured in expansion or differentiation, were FAC sorted into plates to follow the SORTseq protocol (Muraro et al., 2016).

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RNA-seq of the E14.5 lacrimal gland

Project description:The goal of this study is to find the transcriptional targets downstream of PI3K signaling during lacrimal gland development. We performed laser capture microdissection of the lacrimal gland epithelial tissue at embryonic day E14.5 from control embryos and mutant embryos containing lacrimal gland-specific deletion of PI3K subunits. After tissue harvest, RNA was extracted, conversion to cDNA and amplification was performed by Clontech SMART-seq v4 Ultra low input RNA kit,and cDNA library construction was performed using Nextera XT DNA library preparation kit by core facility at Columbia university prior to RNA sequencing. After preparation of cDNA library, each sample was sequenced using Illumina platform

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Differential gene expression of adenoid cystic carcinoma of the lacrimal gland compared to normal lacrimal gland

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Project description:To analyze the gene expression of mouse embryonic lacrimal gland and its developmental related organs such as harderian gland and eye lid. We performed microarray using them.

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miR-205 is a critical regulator of lacrimal gland development

Project description:Tears are essential for the maintenance of the terrestrial animal ocular surface and the lacrimal gland is the source of the aqueous layer of the tear film. Despite the importance of the lacrimal gland in ocular health, molecular aspects of its development remain poorly understood. We have identified a noncoding RNA (miR-205) as an essential gene for lacrimal gland development. Knockout mice lacking miR-205 fail to develop lacrimal glands, establishing this noncoding RNA as a key regulator of lacrimal bud initiation. RNA-seq analysis uncovered several up-regulated miR-205 targets, including Inppl1, a negative regulator of Akt signaling. Data indicate that Akt signaling is required within lacrimal gland epithelia and is activated by Fgf10. Furthermore, combinatorial epistatic deletion of Fgf10 and miR-205 in mice exacerbates the lacrimal gland phenotype. We develop a molecular rheostat model where miR-205 modulates signaling pathways downstream of Fgf10 to regulate glandular development. These data show that a single microRNA is a key regulator for lacrimal gland initiation in mice and highlights the important role of microRNAs during organogenesis.

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