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Polyploidy of MDA-MB-231 cells drives increased extravasation with enhanced cell-matrix adhesion

ABSTRACT: Polyploidy of MDA-MB-231 cells drives increased extravasation with enhanced cell-matrix adhesion

PROVIDER: PRJNA1129276 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR29635278_1.fastq.gz	Fastqsanger.gz
	SRR29635278_2.fastq.gz	Fastqsanger.gz
	SRR29635279_1.fastq.gz	Fastqsanger.gz
	SRR29635279_2.fastq.gz	Fastqsanger.gz
	SRR29635280_1.fastq.gz	Fastqsanger.gz

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Polyploidy of MDA-MB-231 cells drives increased extravasation with enhanced cell-matrix adhesion

Project description:Metastasis, the leading cause of cancer-related deaths, involves a complex cascade of events, including extravasation. Despite extensive research into metastasis, the mechanisms underlying extravasation remain unclear. Molecular targeted therapies have advanced cancer treatment, yet their efficacy is limited, prompting exploration into novel therapeutic targets. Here, we showed the association of polyploidy in MDA-MB-231 breast cancer cells and their extravasation, using microfluidic systems to reproduce the in vivo microvascular environment. We observed enhanced extravasation in polyploid cells alongside upregulated expression of genes involved in cell-substrate adhesion and cell mechanical dynamics. These findings offer insights into the relationship between polyploidy and extravasation, highlighting potential targets for cancer therapy.

2025-01-16 | GSE272066 | GEO

Polyploidy of MDA-MB-231 cells drives increased extravasation with enhanced cell-matrix adhesion

2025-01-16 | GSE271013 | GEO

Polyploidy of MDA-MB-231 cells drives increased extravasation with enhanced cell-matrix adhesion

Project description:Polyploidy of MDA-MB-231 cells drives increased extravasation with enhanced cell-matrix adhesion

| PRJNA1134758 | ENA

The miRNA profiling in MDA-MB-231, MDA-MB-231/E1A and knockdown of Dicer in MDA-MB-231/E1A cells

Project description:Dicer, RNase III endonuclease, is an essential enzyme in miRNA biogenesis that regulates target gene expression, and it has been reported that aberrant expressions of Dicer associate with the clinical outcomes of patients in various cancers. To explore the miRNA differencial expression regulated by Dicer in MDA-MB-231/E1A cells, the microarray profiling analysis was employed to conduct differentially expressed miRNAs in stable MDA-MB-231/vector, MDA-MB-231/E1A, and MDA-MB-231/E1A/shDicer cells.

2016-01-16 | GSE76924 | GEO

The miRNA profiling in MDA-MB-231, MDA-MB-231/E1A and knockdown of Dicer in MDA-MB-231/E1A cells

2016-01-16 | E-GEOD-76924 | biostudies-arrayexpress

RU486 Metabolite Inhibits CCN1/Cyr61 Secretion by MDA-MB-231-Endothelial Adhesion.

Project description:Successful adhesion of circulating tumor cells (CTCs) to microvascular endothelium of distant metastatic tissue is the key starting step of metastatic cascade that could be effectively chemoprevented as we demonstrated previously. Here, we hypothesize that the hetero-adhesion may produce secretory biomarkers that may be important for both premetastatic diagnosis and chemoprevention. We show that co-incubation of triple-negative breast cancer (TNBC) cell line MDA-MB-231 with human pulmonary microvascular endothelial monolayers (HPMEC) secretes Cyr61 (CCN1), primarily from MDA-MB-231. However, addition of metapristone (RU486 metabolite) to the co-incubation system inhibits Cyr61 secretion probably via the Cyr61/integrin αvβ1 signaling pathway without significant cytotoxicity on both MDA-MB-231 and HPMEC. Transfection of MDA-MB-231 with Cyr61-related recombinant plasmid or siRNA enhances or reduces Cyr61 expression, accordingly. The transfection significantly changes hetero-adhesion and migration of MDA-MB-231, and the changed bioactivities by overexpressed CYR61 could be antagonized by metapristone in vitro. Moreover, the circulating MDA-MB-231 develops lung metastasis in mice, which could be effectively prevented by oral metapristone without significant toxicity. The present study, for the first time, demonstrates that co-incubation of MDA-MB-231 with HPMEC secrets CYR61 probably via the CYR61/integrin αvβ1 signaling pathway to promote adhesion-invasion of TNBC (early metastatic step). Metapristone, by interfering the adhesion-invasion process, prevents metastasis from happening.

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Expression profiles of MDA-MB-231, MDA-231 S1a and S1b

Project description:Identification of genes that are involved in self-seeding by comparing gene expression profiles between parental MDA-MB-231 cells and seeder cells (MDA-231-S1a and S1b) 2 replicates from each sample (parental MDA-MB-231, MDA-MB-231 S1a and MDA-MB-231 S1b) were analyzed

2010-04-07 | E-GEOD-18833 | biostudies-arrayexpress

Expression profiles of MDA-MB-231, MDA-231 S1a and S1b

Project description:Identification of genes that are involved in self-seeding by comparing gene expression profiles between parental MDA-MB-231 cells and seeder cells (MDA-231-S1a and S1b)

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Membrane palmitoylated protein 7 depletion effect on MDA-MB-231 cells

Project description:Analysis of MDA-MB-231 cells depleted for membrane palmitoylated protein 7 (MPP7). MPP7 is a member of MPP subfamily of cell polarity-related proteins that function in cell junction and adhesion. Results provide insight into the identification of MPP7 target genes.

2023-01-01 | GSE153619 | GEO

Expression data from CD44-knockdown MDA-MB-231 human breast cancer cells.

Project description:CD44, an adhesion molecule that binds to extracellular matrix, primarily to hyaluronan (HA), has been implicated in cancer cell migration, invasion, and metastasis. CD44 has also recently been recognized as a marker for stem cells of several types of cancer. However, the roles of CD44 in the development of bone metastasis still remain unclear. To explore this issue, we established the MDA-MB-231 human breast cancer cells stably expressing short hairpin RNA against CD44. The CD44-knockdown MDA-MB-231 cells (MDA-MB-231 shCD44-2 and shCD44-3) were analyzed. As control, MDA-MB-231 cells stably expressing shRNA against firefly luciferase (shLuc) were used. Total of three samples. No replicates.

2013-04-24 | E-GEOD-45613 | biostudies-arrayexpress

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