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KDM6 histone demethylase inhibitor GSK-J4 induces metal and stress responses in multiple myeloma cells [GSK-J4]

ABSTRACT: Thioneins are cysteine-rich, evolutionary conserved apoproteins that regulate divalent metal homeostasis by virtue of their metal-chelation properties resulting in the ligand-bound metallothionein state. Previous studies have demonstrated a transient upregulation (102- 103-fold) of a cluster of metallothionein genes as part of a transcriptional response to a class of histone demethylase tool compounds targeting human Fe2+ dependent ketoglutarate oxygenases KDM6A (UTX) and KDM6B (JmjD3). Exposure of multiple myeloma cells to the prototypic bioactive KDM6 inhibitor GSK-J4 induces apoptotic cell death and transcriptomic profiles that are dominated by metal and metabolic stress response signatures. We here investigate the hypothesis that the metal-chelating property of GSK-J4 provides the means for transport and intracellular release of Zn2+ leading to a metallothionein transcriptomic response signature. Live cell imaging upon myeloma cell exposure to GSK-J4 shows a transient increase of intracellular free Zn2+ concentrations upon KDM6 inhibitor treatment consistent with a model of inhibitor mediated metal transport. Comparison of KDM6 inhibitor and ZnSO4 treatments in the presence or absence of metal chelators show that both treatment conditions induce different transcription factor repertoires with an overlapping MTF1 transcriptional regulation responsible for metallothionein and metal ion transport regulation.

ORGANISM(S): Homo sapiens

PROVIDER: GSE213291 | GEO | 2022/09/16

REPOSITORIES: GEO

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KDM6 histone demethylase inhibitor GSK-J4 induces metal and stress responses in multiple myeloma cells [ZNSO]

Project description:Thioneins are cysteine-rich, evolutionary conserved apoproteins that regulate divalent metal homeostasis by virtue of their metal-chelation properties resulting in the ligand-bound metallothionein state. Previous studies have demonstrated a transient upregulation (102- 103-fold) of a cluster of metallothionein genes as part of a transcriptional response to a class of histone demethylase tool compounds targeting human Fe2+ dependent ketoglutarate oxygenases KDM6A (UTX) and KDM6B (JmjD3). Exposure of multiple myeloma cells to the prototypic bioactive KDM6 inhibitor GSK-J4 induces apoptotic cell death and transcriptomic profiles that are dominated by metal and metabolic stress response signatures. We here investigate the hypothesis that the metal-chelating property of GSK-J4 provides the means for transport and intracellular release of Zn2+ leading to a metallothionein transcriptomic response signature. Live cell imaging upon myeloma cell exposure to GSK-J4 shows a transient increase of intracellular free Zn2+ concentrations upon KDM6 inhibitor treatment consistent with a model of inhibitor mediated metal transport. Comparison of KDM6 inhibitor and ZnSO4 treatments in the presence or absence of metal chelators show that both treatment conditions induce different transcription factor repertoires with an overlapping MTF1 transcriptional regulation responsible for metallothionein and metal ion transport regulation.

2022-09-16 | GSE213292 | GEO

RNA-seq of GSK-J4 Treated Neuroblastoma Cell Lines

Project description:High-risk neuroblastoma is often distinguished by amplification of MYCN and loss of differentiation potential with tumors refractory to retinoic acid differentiation based therapies. Here, we leverage high-throughput drug screening of epigenetic targeted therapies across a large and diverse tumor cell line panel to uncover the hypersensitivity of neuroblastoma cells to GSK-J4, a small molecule dual inhibitor of H3K27 demethylases UTX and JMJD3. Mechanistically, GSK-J4 induced neuroblastoma differentiation and ER stress with accompanying upregulation of PUMA and apoptosis induction. Retinoic acid (RA)-resistant neuroblastoma cells were sensitive to GSK-J4. Additionally, GSK-J4 was effective at blocking the growth of chemorefractory and patient-derived xenograft models of high-risk neuroblastoma in vivo. Further, GSK-J4 and RA combined to induce differentiation, ER-stress and limit the growth of neuroblastomas resistant to either drug alone. In MYCN-amplified neuroblastoma, which is the most prevalent driver gene alteration in the refractory population, PUMA induction by GSK-J4 sensitized tumors to the BCL-2 inhibitor venetoclax, demonstrating that epigenetic targeted therapies and BH3 mimetics can be rationally combined to treat high-risk subset of neuroblastoma. Therefore, H3K27 demethylation inhibition is a promising therapeutic target to treat high-risk neuroblastoma, and H3K27 demethylation can be part of rational combination therapies to induce robust anti-neuroblastoma activity.

2018-02-17 | GSE110709 | GEO

Jumonji Demethylase Inhibitor GSK-J4 treated Multiple Myeloma JJN3 and RPMI

Project description:Analysis of Multiple Myeloma Cell lines JJN-3 and RPMI gene expression following treated with GSK-J4 or Bortezomib Total RNA extracted from cells after 6 or 24 hour treatment with either GSK-J4, GSK-J5, Bortezomib or vehicle

2016-08-21 | E-GEOD-60600 | biostudies-arrayexpress

Expression data from neuroblastoma cells treated with GSK-J4 or KTP-330

Project description:Neuroblastoma (NB) is a common pediatric malignancy tumor with poor outcome. Recent studies show that GSK-J4, an inhibitor of lysine 27 of histone 3 (H3K27) demethylases, and KTP-330, a clinically available inhibitor of XPO1 protein, are promising anti-cancer agents. However, their molecular mechanisms in neuroblastoma are still unclear. In this study, we used microarrays to analyze the global change in gene expression as a result of GSK-J4 or KTP-330 treatment in the human neuroblastoma cell line SH-SY5Y.

2022-01-22 | GSE180601 | GEO

KDM6 Inhibition induces DNA Damage Response (DDR) during ESC Differentiation but not during self-renewal.

Project description:The discovery of the first histone demethylase in 2004 (LSD1/KDM1) opened new avenues for the understanding of how histone methylation impacts cellular functions. A great number of histone demethylases have been identified since, which are potentially linked to gene regulation as well as to stem cell self-renewal and differentiation. KDM6A/UTY and KDM6B/JMJD3 are both H3K27me3/2-specific histone demethylases, which are known to play a central role in regulation of posterior development, by regulating HOX gene expression. So far nothing is known about the role of histone lysine demethylases (KDMs) during early hematopoiesis. We are studying the role of KDM6A and KDM6B on self-renewal, global gene expression and on local and global chromatin states in embryonic stem cells (ESCs) and during differentiation. In order to completely abrogate KDM6 demethylase activity in ESCs we employed a specific inhibitor (GSK-J4, Kruidenier et al. 2012). Treatment of ESCs with GSK-J4 had no effect on viability and proliferation . However, ESC differentiation in the presence of GSK-J4 was completely abrogated. In conclusion we show that ESC differentiation is completely blockend in the absence of any H3K27 demethylase activity. We used microarrays to detail the global gene expression program of genes which are differentially expressed during the early differentiation of ESC derived embryoid bodies (EBs) in the presence of GSK-J4 (KDM6 Inhibitor). ESCs (R1) have been cultured and differentiated in the presence of GSK-J4 a KDM6 specific inhibitor.

2016-03-11 | E-GEOD-49886 | biostudies-arrayexpress

A novel synthetic jumonji H3K27 demethylase inhibitor GSK-J4 exert immunosuppressive activities

Project description:Using RNA-seq, we report that jumonji H3K27 demethylase inhibitor, GSK-J4, exerts potent anti-inflammatory effects on LPS-stimulated BV-2 microglial cells.

2016-09-09 | GSE79898 | GEO

Genome-wide RNA-seq from GSK-J4-treated lung adenocarcinoma cell lines

Project description:Purpose: The goals of our study were to identify downstream pathway regulated by GSK-J4 in lung adenocarcinoma Methods: RNAs isolated from GSK-J4-treated or untreated lung adenocarcinoma (HCC827, H23 and A549) were analyzed by using an Illumina Nextseq500 Conclusions: Our study represents the first detailed transcriptomic analysis of effects of GSK-J4 in lung adenocarcinoma.

2021-08-08 | GSE118319 | GEO

Transcriptome analysis of the effects of GSK-J4 and L-ascorbic acid in female embryonic stem cells

Project description:The effects of a histone demethylase inhibitor, GSK-J4, and L-ascorbic acid for the transcriptome in female ES cells were analyzed by RNA-sequence. Total RNA was used for high-throughput sequence with Illumina HiSeq 2500 and mapped to mm10. Total RNA profile

2015-05-08 | E-GEOD-67674 | biostudies-arrayexpress

Genome-wide ChIP-Seq from GSK-J4 or siKDM6B-treated lung adenocarcinoma cell line A549

Project description:Purpose: The goals of our study were to identify downstream pathway regulated by GSK-J4 in lung adenocarcinoma Methods: Chromatin isolated from GSK-J4- or siKDM6B-treated lung adenocarcinoma with proper controls was used to generate ChIP-Seq libraries

2021-08-08 | GSE133967 | GEO

Jumonji Demethylase Inhibitor GSK-J4 treated Multiple Myeloma JJN3 and RPMI

Project description:Analysis of Multiple Myeloma Cell lines JJN-3 and RPMI gene expression following treated with GSK-J4 or Bortezomib

2016-08-21 | GSE60600 | GEO