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Transcriptome sequencing of isolated MNT-1cells after 72 h coculturing with KRT5 downregulation HaCaT cells

ABSTRACT: Transcriptome sequencing of isolated MNT-1cells after 72 h coculturing with KRT5 downregulation HaCaT cells

PROVIDER: PRJNA844319 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR19504609_1.fastq.gz	Fastqsanger.gz
	SRR19504609_2.fastq.gz	Fastqsanger.gz
	SRR19504610_1.fastq.gz	Fastqsanger.gz
	SRR19504610_2.fastq.gz	Fastqsanger.gz
	SRR19504611_1.fastq.gz	Fastqsanger.gz

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Transcriptome sequencing of isolated MNT-1cells after 72 h coculturing with KRT5 downregulation HaCaT cells

Project description:To investigate the effect of KRT5-KD Hecat cells on cocultured melanocytes

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Mnt Represses Epithelial Identity To Promote Epithelial to Mesenchymal Transition

Project description:The multi-step process of epithelial to mesenchymal transition (EMT), whereby static epithelial cells become migratory mesenchymal cells, is heavily involved in development, wound healing, and disease states. Despite the major involvement of basic helix-loop-helix (bHLH) transcription factors (TFs) in cell-fate determination, few have examined them for their involvement in fundamental processes that require EMT. Here, we have identified Max network transcription repressor (MNT) as a potent EMT promoting TF in mammary epithelium. We show that depletion of MNT blocked TGF?-induced phenotypic changes, and transcriptomic analysis revealed that MNT is a transcription repressor of epithelial identity. We show that MNT mediates repression of epithelial identity via direct interaction with HDAC1. Lastly, we show that MNT and its target genes are heavily expressed in EMT-High breast cancer, with MNT required for breast cancer cell migration. Taken together, these findings establish MNT as a critical regulator of cell-fate determination and the EMT transcriptome.

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The impact of the HSPA2 gene downregulation on transcriptome profile in immortalized epidermal keratinocytes (HaCaT line) grown in 3D cell culture

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Lung extracellular matrix modulates KRT5+ basal cell activity in pulmonary fibrosis

Project description:Aberrant expansion of KRT5+ basal cells in the distal lung accompanies progressive alveolar epithelial cell loss and tissue remodelling during fibrogenesis in idiopathic pulmonary fibrosis (IPF). The mechanisms determining activity of KRT5+ cells in IPF have not been delineated. Here, we show an association between KRT5+ cells in human fibrotic lung and regional differences in collagen topography. In vitro, KRT5+ cell migratory characteristics and expression of remodelling genes are modulated by extracellular matrix (ECM) composition and organisation. Mass spectrometry-based proteomics revealed compositional differences in the matrisome secreted by primary human lung fibroblasts (HLF) from IPF patients compared to controls. Over-expression of ECM glycoprotein, Secreted Protein Acidic and Cysteine Rich (SPARC) in the IPF HLF matrisome restricts KRT5+ cell migration in vitro. Together, our findings demonstrate that changes to the ECM in IPF directly influence KRT5+ cell behaviour and function contributing to remodelling events in the fibrotic niche.

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Expression data from skeletal muscles of flies with muscle-specific overexpression of Foxo or Mnt

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Project description:Skeletal muscle senescence influences whole organism aging, yet little is known on the relay of pro-longevity signals from muscles to other tissues. We performed an RNAi screen in Drosophila for muscle-released cytokines (?myokines?) regulating lifespan and identified Myoglianin, the homolog of human Myostatin. Myoglianin is induced in skeletal muscles by the transcription factor Mnt and together they constitute an inter-organ signaling module that regulates lifespan, age-related muscle dysfunction, and protein synthesis across aging tissues. Both Mnt and Myoglianin activate already in young age the protective decline in protein synthesis that is typical of old age, while knock-down of Myoglianin impairs this process. Mechanistically, Mnt decreases the expression of nucleolar components in muscles while also decreasing nucleolar size in distant tissues via Myostatin/p38 MAPK signaling. Our results highlight a myokine-dependent inter-organ longevity pathway that coordinates nucleolar function and protein synthesis across aging tissues. Affymetrix microarrays were used to evaluate genome-wide expression in skeletal muscles of flies with muscle-specific overexpression of FOXO or Mnt (Affymetrix Drosophila Genome 2.0 Array). This design allowed us to identify genes and pathways induced by overexpression of FOXO and/or Mnt, and enabled us to address the degree to which FOXO-induced pathways were independent of those induced by Mnt.

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