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Transcriptome analysis of basal and luminal cells treatment with baicalin

ABSTRACT: Transcriptome analysis of basal and luminal cells treatment with baicalin

PROVIDER: PRJNA699483 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13630729_1.fastq.gz	Fastqsanger.gz
	SRR13630729_2.fastq.gz	Fastqsanger.gz
	SRR13630730_1.fastq.gz	Fastqsanger.gz
	SRR13630730_2.fastq.gz	Fastqsanger.gz
	SRR13630731_1.fastq.gz	Fastqsanger.gz

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Transcriptome analysis of basal and luminal cells treatment with baicalin

Project description:Baicalin is the main flavonoid component extracted from Scutellaria root. It has multiple potent biological activities, including estrogen-like activity. In our study, we investigated the function of baicalin on mammary stem cell proliferation and mammary development. Our results demonstrated that baicalin significantly accelerates mammary gland development at puberty and during pregnancy; In vitro, baicalin significantly promotes colony formation ability of mammary basal epithelial cells in a three-dimensional (3D) culture system; In vivo, baicalin improved mammary regeneration efficiency in mouse xenograft model. But the mechanism was unknown. Therefore, transcriptome analysis of basal and luminal cells treatment with baicalin was performed.

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Transcriptome analysis of luminal and basal cell subpopulations in the lactating versus pregnant mammary gland

Project description:To identify genes specifically expressed in lactating mammary glands, the gene expression profiles of luminal and basal cells from different developmental stages were compared. Comparison of gene expression in luminal and basal cells harvested from the mammary glands of virgin, 18.5 day pregnant and 2 day lactating mice (2 mice per stage).

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Transcriptome analyses of luminal-derived basal cells induced by hormones in the mammary gland

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Inactivation of LATS1/2 drives luminal-basal plasticity to initiate basal-like mammary carcinomas

Project description:Basal breast cancers, an aggressive breast cancer subtype that has poor treatment options, are thought to arise from luminal mammary epithelial cells that undergo basal-like plasticity through poorly understood mechanisms. Using genetic mouse models and ex vivo primary organoid cultures, we show that conditional co-deletion of the LATS1 and LATS2 kinases, key effectors of Hippo pathway signaling, in mature mammary luminal epithelial cells promotes the development of basal-like carcinomas that metastasize over time. Genetic co-deletion experiments revealed that phenotypes resulting from the loss of LATS1/2 activity are dependent on the transcriptional regulators YAP/TAZ. Notably, transcriptional analyses of LATS1/2-deleted mammary epithelial cells revealed a gene expression program that associates with human basal breast cancers. Our study demonstrates in vivo roles for the LATS1/2 kinases in mammary epithelial homeostasis and luminal-basal fate control and implicates signaling networks induced upon the loss of LATS1/2 activity in the development of basal breast cancers.

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Transcriptome analysis of luminal and basal cell subpopulations in the lactating versus pregnant mammary gland

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Elucidation of the mechanism behind the potentiating activity of baicalin against Burkholderia cepacia complex biofilms

Project description:Burkholderia cenocepacia J2315 biofilms were described to have an increased susceptibility towards tobramycin when baicalin hydrate was added to the treatment. The goal of this transcriptomic analysis is to elucidate the effect of baicalin hydrate on gene expression levels when added to tobramycin treatment. Therefore, biofilms were grown for 24 hours and treated for another 24 hours with either tobramycin (TOB) (1024ug/ml), baicalin hydrate (BH) (250uM) or a combination of both. Also, an untreated control (physiological saline) was included. This experiment was repeated twice, so three biological replicates per treatment were included for RNAsequencing.

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Interactions with Fibroblasts are Distinct in Basal-like and Luminal Breast Cancers

Project description:Basal-like breast cancers have several well-characterized distinguishing molecular features, but most of these are features of the cancer cells themselves. The unique stromal-epithelial interactions, and more generally, microenvironmental features of basal-like breast cancers, have not been well characterized. To identify characteristic microenvironment features of basal-like breast cancer, we performed cocultures of several basal-like breast cancer cell lines with fibroblasts (reduction mammoplasty-derived fibroblast line; RMF) and compared these to cocultures of luminal breast cancer cell lines with fibroblasts. Interactions between basal-like cancer cells and fibroblasts induced expression of numerous interleukins and chemokines, including IL-6, IL-8, CXCL1, CXCL3, and TGFbeta. Under the influence of fibroblasts, basal-like breast cancer cell lines also showed increased migration in vitro. Migration was less pronounced for luminal lines, but these lines were more likely to have altered proliferation. These differences were relevant to tumor biology in vivo, as the gene set that distinguished luminal and basal-like stromal interactions in coculture also distinguishes basal-like from luminal tumors with 98% accuracy in 10-fold CV and 100% accuracy in an independent test set. However, comparisons between cocultures where cells were in direct contact and cocultures where interaction was solely through soluble factors suggest that there is an important impact of direct cell-to-cell contact. The phenotypes and gene expression changes invoked by cancer cell interactions with fibroblasts support the microenvironment and cell-cell interactions as intrinsic features of breast cancer subtypes. 99 samples were hybridized with Stratagene common reference and profiled on Agilent microarrays.

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