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Epigenetic modifiers MMSET and EZH2 physically interact and cooperate to support Multiple Myeloma pathophysiology [ChIP-seq]

ABSTRACT: Epigenetic modifiers MMSET and EZH2 physically interact and cooperate to support Multiple Myeloma pathophysiology [ChIP-seq]

PROVIDER: PRJNA1013595 | ENA |

REPOSITORIES: ENA

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Epigenetic modifiers MMSET and EZH2 physically interact and cooperate to support Multiple Myeloma pathophysiology

Project description:Epigenetic modifiers MMSET and EZH2 physically interact and cooperate to support Multiple Myeloma pathophysiology

| PRJNA1013589 | ENA

Epigenetic modifiers MMSET and EZH2 physically interact and cooperate to support Multiple Myeloma pathophysiology [RNA-seq]

Project description:Epigenetic modifiers MMSET and EZH2 physically interact and cooperate to support Multiple Myeloma pathophysiology [RNA-seq]

| PRJNA1013496 | ENA

Epigenetic modifiers MMSET and EZH2 physically interact and cooperate to support Multiple Myeloma pathophysiology [ChIP-seq]

Project description:Multiple myeloma (MM) is a malignant B cell dyscrasia characterized by the accumulation of clonal plasma cells (PC) within the bone marrow. Epigenetic factors are involved in MM initiation, progression, and occurrence of chemoresistance. Among them EZH2, the Polycomb Repressive Complex 2 (PRC2) catalytic subunit and NSD2 (MMSET), the target oncogene of t(4;14) primary translocation, are both associated with poor prognosis values and contribute to MM disease. In this study, we identified a physical interaction between EZH2 and MMSET in MM. We used MMSET-depleted MM cells and MAK-683, an allosteric inhibitor of EZH2, to disrupt this interaction and understand its implication in MM biology and resistance to anti-MM drugs. Through its interaction with EZH2, MMSET regulates PRC2 nuclear localization in MM cells, promotes a particularly poor prognosis in MM patients, and modulates the expression of tumor-suppressor genes involved in p53 pathway. We also demonstrated that MAK-683 can interfere with this interaction and synergizes with conventional drugs used in MM treatment: Melphalan, an alkylating agent triggering DNA Damage Response (DDR); and Panobinostat, a Histone De-Acetylase (HDAC) inhibitor directedly regulating p53 acetylation and stability.

2024-08-09 | GSE242500 | GEO

Epigenetic modifiers MMSET and EZH2 physically interact and cooperate to support Multiple Myeloma pathophysiology [RNA-seq]

2024-08-09 | GSE242451 | GEO

Epigenetic modifiers MMSET and EZH2 physically interact and cooperate to support Multiple Myeloma pathophysiology

Project description:This SuperSeries is composed of the SubSeries listed below.

2024-08-09 | GSE242505 | GEO

Characterization of the EZH2-MMSET histone methyltransferase regulatory axis in cancer [expression]

Project description:Histone methyltransferases (HMTases), as chromatin modifiers, regulate the transcriptomic landscape in normal development as well in diseases such as cancer. Here, we molecularly order two HMTases, EZH2 and MMSET that have established genetic links to oncogenesis. EZH2, which mediates histone H3K27 trimethylation and is associated with gene silencing, was shown to be coordinately expressed and function upstream of MMSET, which mediates H3K36 dimethylation and is associated with active transcription. We found that the EZH2-MMSET HMTase axis is coordinated by a microRNA network and that the oncogenic functions of EZH2 require MMSET activity. Together, these results suggest that the EZH2-MMSET HMTase axis coordinately functions as a master regulator of transcriptional repression, activation, and oncogenesis and may represent an attractive therapeutic target in cancer. LacZ control vs MMSET overexpression or MMSET DeltaSET overexpression in replicates

2012-11-15 | E-GEOD-41651 | biostudies-arrayexpress

Characterization of the EZH2-MMSET histone methyltransferase regulatory axis in cancer [expression]

2012-11-15 | GSE41651 | GEO

Characterization of the EZH2-MMSET histone methyltransferase regulatory axis in cancer [ChIP-seq]

Project description:Histone methyltransferases (HMTases), as chromatin modifiers, regulate the transcriptomic landscape in normal development as well in diseases such as cancer. Here, we molecularly order two HMTases, EZH2 and MMSET that have established genetic links to oncogenesis. EZH2, which mediates histone H3K27 trimethylation and is associated with gene silencing, was shown to be coordinately expressed and function upstream of MMSET, which mediates H3K36 dimethylation and is associated with active transcription. We found that the EZH2-MMSET HMTase axis is coordinated by a microRNA network and that the oncogenic functions of EZH2 require MMSET activity. Together, these results suggest that the EZH2-MMSET HMTase axis coordinately functions as a master regulator of transcriptional repression, activation, and oncogenesis and may represent an attractive therapeutic target in cancer. Examination of H3K36me2 mark in control and stable EZH2 knockdown cells

2012-11-15 | E-GEOD-41652 | biostudies-arrayexpress

Characterization of the EZH2-MMSET histone methyltransferase regulatory axis in cancer [ChIP-seq]

2012-11-15 | GSE41652 | GEO

Effects of MMSET on gene expression in multiple myeloma

Project description:The MMSET (Multiple Myeloma SET domain) protein is overexpressed in multiple myeloma patients with the translocation t(4;14). Although studies have shown the involvement of MMSET/WHSC1 in development, its mode of action in the pathogenesis of multiple myeloma (MM) is largely unknown. We found that MMSET is a major regulator of chromatin structure and transcription in t(4;14) MM cells. High levels of MMSET correlate with an increase in lysine 36 methylation of histone H3 and a decrease in lysine 27 methylation across the genome, leading to a more open structural state of the chromatin. Loss of MMSET expression alters adhesion properties, suppresses growth and induces apoptosis in MM cells. Consequently, genes affected by high levels of MMSET are implicated in the p53 pathway, cell cycle regulation and integrin signaling. Regulation of many of these genes required functional histone methyl-transferase (HMT) activity of MMSET. These results implicate MMSET as a major epigenetic regulator in t(4;14)+ MM.

2010-10-20 | GSE24746 | GEO

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