Exceptional response of high-risk neuroblastoma to RBM39 degrader Indisulam (ATAC-Seq)
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA691027 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR13397484_1.fastq.gz | Fastqsanger.gz | |||
| SRR13397484_2.fastq.gz | Fastqsanger.gz | |||
| SRR13397485_1.fastq.gz | Fastqsanger.gz | |||
| SRR13397485_2.fastq.gz | Fastqsanger.gz | |||
| SRR13397486_1.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 12 |
Similar Datasets
Project description:Indisulam selectively bridges splicing factor RBM39 to DCAF15 for proteasomal degradation. However, clinical trials indicate that patient stratification based upon the mechanism of action of indisulam may be required to achieve the best response. Here we show that neuroblastoma, a MYC-driven cancer characterized by splicing dysregulation, requires RBM39 for survival, expresses high levels of DCAF15 among different solid tumor lineages, and is the most sensitive cancer lineage to indisulam that achieves therapeutic effect by specifically targeting RBM39 in neuroblastoma. Genetic depletion or proteasomal degradation of RBM39 by indisulam induces drastic splicing event changes in neuroblastoma cells. Through specifically targeting RBM39, indisulam induces exceptional tumor response in multiple high-risk neuroblastoma models. Collectively we demonstrate that high RBM39 dependency and high-level expression of DCAF15 provide indisulam a more efficacious therapeutic window to treating high-risk neuroblastoma.
2021-11-24 | GSE164504 | GEO
Project description:Indisulam selectively bridges splicing factor RBM39 to DCAF15 for proteasomal degradation. However, clinical trials indicate that patient stratification based upon the mechanism of action of indisulam may be required to achieve the best response. Here we show that neuroblastoma, a MYC-driven cancer characterized by splicing dysregulation, requires RBM39 for survival, expresses high levels of DCAF15 among different solid tumor lineages, and is the most sensitive cancer lineage to indisulam that achieves therapeutic effect by specifically targeting RBM39 in neuroblastoma. Genetic depletion or proteasomal degradation of RBM39 by indisulam induces drastic splicing event changes in neuroblastoma cells. Through specifically targeting RBM39, indisulam induces exceptional tumor response in multiple high-risk neuroblastoma models. Collectively we demonstrate that high RBM39 dependency and high-level expression of DCAF15 provide indisulam a more efficacious therapeutic window to treating high-risk neuroblastoma.
2021-11-24 | GSE164505 | GEO
Project description:Exceptional response of high-risk neuroblastoma to RBM39 degrader Indisulam
| PRJNA691028 | ENA
Project description:Exceptional response of high-risk neuroblastoma to RBM39 degrader Indisulam (RNA-Seq)
| PRJNA691032 | ENA
Project description:Neuroblastoma is the most common solid tumour in childhood and prognosis remains poor for high-risk cases despite the use of multimodal treatment. Analysis of public drug sensitivity data showed neuroblastoma lines to be particularlysensitive to indisulam, a molecular glue that selectively targets the RNA splicing factor RBM39 for proteosomal degradation via DCAF15-E3-ubiquitin ligase. In neuroblastoma models indisulam induced rapid loss of RBM39, accumulation of splicing errors and growth inhibition in a DCAF15-dependent manner. Integrative analysis of RNAseq and proteomics data highlighted a particular disruption to cell cycle and metabolism. Metabolic profiling demonstrated metabolome perturbations and mitochondrial dysfunction resulting from indisulam. Complete tumour without relapse was observed in both xenografts and the Th-MYCN transgenic model of neuroblastoma after indisulam treatment, with RBM39 loss confirmed in vivo. Our data imply that dual targeting of metabolism and RNA splicing with anti-cancer sulfonamides such as indisulam is promising therapeutic approach for high-risk neuroblastoma.
2022-01-13 | PXD022164 | Pride
Project description:The lineage plasticity of neuroblastoma cells is defined by a mixture of two major cell states, adrenergic (ADRN) and mesenchymal (MES), which presumably contributes to therapy resistance. However, how the neuroblastoma cells switch their cell states during therapy remains largely unknown and how to eradicate neuroblastoma cells regardless of their cell state alterations is a clinical challenge. By using four distinct human and murine neuroblastoma models treated with indisulam, a molecular glue drug serving as a selective RBM39 degrader, we show that cancer cells not only can undergo bidirectional switch of ADRN and MES cell states, but also can acquire additional cell states of melanoma and Schwann cell progenitors, reminiscent of the cellular pliancy of neural crest cells. The lineage alterations of neuroblastoma cells are coupled with epigenetic changes and dependency switch of lineage-specific transcription factors. Nevertheless, indisulam treatment induces an inflamed tumor microenvironment leading to an immune cell infiltration. The combination of indisulam with anti-GD2 monoclonal immunotherapy results in a durable complete response in transgenic neuroblastoma models driven by MYCN and ALK mutant oncogenes, providing a therapeutic rationale to eradicate tumor cells even when they acquire alternative cell lineage(s) in response to treatment.
2025-06-05 | GSE251918 | GEO
Project description:The lineage plasticity of neuroblastoma cells is defined by a mixture of two major cell states, adrenergic (ADRN) and mesenchymal (MES), which presumably contributes to therapy resistance. However, how the neuroblastoma cells switch their cell states during therapy remains largely unknown and how to eradicate neuroblastoma cells regardless of their cell state alterations is a clinical challenge. By using four distinct human and murine neuroblastoma models treated with indisulam, a molecular glue drug serving as a selective RBM39 degrader, we show that cancer cells not only can undergo bidirectional switch of ADRN and MES cell states, but also can acquire additional cell states of melanoma and Schwann cell progenitors, reminiscent of the cellular pliancy of neural crest cells. The lineage alterations of neuroblastoma cells are coupled with epigenetic changes and dependency switch of lineage-specific transcription factors. Nevertheless, indisulam treatment induces an inflamed tumor microenvironment leading to an immune cell infiltration. The combination of indisulam with anti-GD2 monoclonal immunotherapy results in a durable complete response in transgenic neuroblastoma models driven by MYCN and ALK mutant oncogenes, providing a therapeutic rationale to eradicate tumor cells even when they acquire alternative cell lineage(s) in response to treatment.
2025-06-05 | GSE251915 | GEO
Project description:This SuperSeries is composed of the SubSeries listed below.
2021-11-24 | GSE164506 | GEO
Project description:Neuroblastoma is the most common solid tumour in childhood. Prognosis remains poor for high risk cases despite the use of multimodal treatment, highlighting the urgent need for novel therapeutic strategies. Analysis of cell line drug sensitivity data suggested that among solid tumours neuroblastoma could be the most sensitive to treatment with indisulam (E7070). Indisulam is a clinical aryl sulphonamide and selective promoter of DCAF15-E3-ubiquitin ligase dependent degradation of the RNA splicing factor and transcriptional coactivator RBM39. Here, we demonstrate for the first time that indisulam is highly efficacious in vitro and in vivo in experimental models of neuroblastoma. Indisulam induced rapid depletion of RBM39, accumulation of splicing errors in mRNA and growth inhibition in a DCAF15-dependent manner. Global analysis of protein and RNA alterations in IMR32 cells demonstrated a significant overlap between mis-spliced RNA and decrease in protein levels. Pathway analysis indicated an enrichment for genes involved in cell cycle and one-carbon metabolism, including CDK4 and TYMS. Finally, indisulam induces mitochondrial dysfunction, metabolome perturbations, alterations to redox balance and NAD/NADH ratio in vitro. Metabolic changes were validated in IMR32 xenografts in vivo. Collectively, our data suggest that high-risk neuroblastomas, which are frequently MYCN/MYC-driven, may be particularly susceptible to the dual targeting of metabolism and RNA splicing with anticancer sulfonamides such as indisulam
2021-12-30 | GSE160446 | GEO
Project description:Ovarian high-grade serous carcinoma (HGSC) is the most common and lethal subtype of ovarian cancer with limited therapeutic options. In recent years, PARP inhibitors have demonstrated significant clinical benefits, especially in patients with BRCA1/2 mutations. However, acquired drug resistance and relapse is a major challenge. Therapies disrupting the spliceosome alter cancer transcriptomes and have shown potential to improve PARP inhibitor response. Indisulam (E7070) has been identified as a molecular glue that brings splicing factor RBM39 and DCAF15 E3 ubiquitin ligase in close proximity. Exposure to indisulam induces RBM39 proteasomal degradation through DCAF15-mediated polyubiquitination and subsequent RNA splicing defects. In this study, we demonstrate that loss of RBM39 induces splicing errors in DNA damage repair genes in ovarian cancer, leading to increased sensitivity to PARP inhibitors such as olaparib. Indisulam synergized with olaparib in multiple in vitro models of ovarian cancer regardless of PARP inhibitor sensitivity and improved olaparib response in mice bearing PARP inhibitor-resistant tumors. DCAF15 expression, but not BRCA1/2 mutational status, was essential for the synergy between indisulam and olaparib, suggesting that the combination therapy may benefit patients irrespective of their BRCA1/2 status. These findings demonstrate that combining RBM39 degraders and PARP inhibitors is a promising therapeutic approach to improving PARP inhibitor response in ovarian HGSC
2023-01-22 | GSE223011 | GEO