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MLL3 Loss Drives Metastasis by Promoting a Hybrid Epithelial-Mesenchymal Transition State [RNA-seq EM vs M]

ABSTRACT: MLL3 Loss Drives Metastasis by Promoting a Hybrid Epithelial-Mesenchymal Transition State [RNA-seq EM vs M]

PROVIDER: PRJNA851733 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR19780570_1.fastq.gz	Fastqsanger.gz
	SRR19780570_2.fastq.gz	Fastqsanger.gz
	SRR19780571_1.fastq.gz	Fastqsanger.gz
	SRR19780571_2.fastq.gz	Fastqsanger.gz
	SRR19780572_1.fastq.gz	Fastqsanger.gz

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MLL3 Loss Drives Metastasis by Promoting a Hybrid Epithelial-Mesenchymal Transition State [RNA-seq EM vs M]

Project description:Loss of MLL3 facilitates mesenchymal cells to acquire a mesenchymal/epithelial hybrid state during metastatic colonization. The MET occurring in distant metastases is likely driven by stromal signals in the metastatic niche. One signaling pathway that promotes the MET is the activation of protein kinase A (PKA). The MET hybrid cells can be identified as CD44+CD104+/high. Forskolin treatment generated significantly more CD44+CD104high hybrid cells in MLL3-mutant cells than the WT MDA-MB-231 cells. While both WT and MLL3-mutant CD44+CD104high hybrid EMT cells showed significantly increased lung metastatic ability than the counterpart CD44+CD104low mesenchymal cells, the MLL3-mutant hybrid cells showed a much greater metastasis-initiating ability than the WT hybrid cells. Here we reported the gene expression profiles of CD44+CD104high E/M hybird and CD44+CD104-/low mesenchymal cell populations sorted from Foskolin-treated, WT MDA-MB-231 cells.

2022-10-07 | GSE206653 | GEO

MLL3 Loss Drives Metastasis by Promoting a Hybrid Epithelial-Mesenchymal Transition State [RNA-seq MDA231 KO vs WT]

Project description:Loss of MLL3 facilitates mesenchymal cells to acquire a mesenchymal/epithelial hybrid state during metastatic colonization. MLL3 loss led to IFNg signaling upregulation, which contributes to the induction of hybrid EMT cells and the enhanced metastatic capacity. Here we reported the gene expression profiles of WT and MLL3-KO MDA-MB-231 cells.

2022-10-07 | GSE206655 | GEO

MLL3 Loss Drives Metastasis by Promoting a Hybrid Epithelial-Mesenchymal Transition State [ATAC-seq]

Project description:Phenotypic plasticity associated with the hybrid epithelial-mesenchymal transition (EMT) state is crucial to metastatic seeding and outgrowth. We showed that deletion of the epigenetic regulator MLL3, a tumor suppressor frequently altered in human cancer, promoted the acquisition of the hybrid EMT state in both epithelial and mesenchymal breast cancer cells by facilitating EMT and MET, distinct from other known EMT regulators mediating unidirectional changes. MLL3 deletion greatly increased metastasis by enhancing metastatic outgrowth during colonization. Mechanistically, MLL3 loss led to IFNγ signaling upregulation, which contributes to the induction of hybrid EMT cells and the enhanced metastatic capacity.

2022-10-07 | GSE206658 | GEO

MLL3 Loss Drives Metastasis by Promoting a Hybrid Epithelial-Mesenchymal Transition State [ChIP-seq histone marker]

Project description:Phenotypic plasticity associated with the hybrid epithelial-mesenchymal transition (EMT) state is crucial to metastatic seeding and outgrowth. However, the mechanisms controlling the induction of hybrid EMT remain poorly defined. We showed that deletion of the epigenetic regulator MLL3, a tumor suppressor frequently altered in human cancer, promoted the acquisition of the hybrid EMT state in both epithelial and mesenchymal breast cancer cells by facilitating EMT and MET, distinct from other known EMT regulators mediating unidirectional changes. Consequently, MLL3 deletion greatly increased metastasis by enhancing metastatic outgrowth during colonization. Mechanistically, MLL3 loss led to IFNγ signaling upregulation, which contributes to the induction of hybrid EMT cells and the enhanced metastatic capacity.

2022-10-07 | GSE206656 | GEO

MLL3 Loss Drives Metastasis by Promoting a Hybrid Epithelial-Mesenchymal Transition State [ChIP-seq UTX and MLL4]

2022-10-07 | GSE206657 | GEO

MLL3 loss drives metastasis and therapeutic resistance by promoting a hybrid EMT state [RNA-seq]

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MLL3 Loss Drives Metastasis by Promoting a Hybrid Epithelial-Mesenchymal Transition State [ATAC-seq]

Project description:MLL3 Loss Drives Metastasis by Promoting a Hybrid Epithelial-Mesenchymal Transition State [ATAC-seq]

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MLL3 loss drives metastasis by promoting a hybrid epithelial-mesenchymal transition state.

Project description:Phenotypic plasticity associated with the hybrid epithelial-mesenchymal transition (EMT) is crucial to metastatic seeding and outgrowth. However, the mechanisms governing the hybrid EMT state remain poorly defined. Here we showed that deletion of the epigenetic regulator MLL3, a tumour suppressor frequently altered in human cancer, promoted the acquisition of hybrid EMT in breast cancer cells. Distinct from other EMT regulators that mediate only unidirectional changes, MLL3 loss enhanced responses to stimuli inducing EMT and mesenchymal-epithelial transition in epithelial and mesenchymal cells, respectively. Consequently, MLL3 loss greatly increased metastasis by enhancing metastatic colonization. Mechanistically, MLL3 loss led to increased IFNγ signalling, which contributed to the induction of hybrid EMT cells and enhanced metastatic capacity. Furthermore, BET inhibition effectively suppressed the growth of MLL3-mutant primary tumours and metastases. These results uncovered MLL3 mutation as a key driver of hybrid EMT and metastasis in breast cancer that could be targeted therapeutically.

| S-EPMC10003829 | biostudies-literature

MLL3 Loss Drives Metastasis by Promoting a Hybrid Epithelial-Mesenchymal Transition State [RNA-seq MDA231 KO vs WT]

Project description:MLL3 Loss Drives Metastasis by Promoting a Hybrid Epithelial-Mesenchymal Transition State [RNA-seq MDA231 KO vs WT]

| PRJNA851732 | ENA

MLL3 Loss Drives Metastasis by Promoting a Hybrid Epithelial-Mesenchymal Transition State [ChIP-seq histone marker]

Project description:MLL3 Loss Drives Metastasis by Promoting a Hybrid Epithelial-Mesenchymal Transition State [ChIP-seq histone marker]

| PRJNA851731 | ENA