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Renal medullary carcinomas depend upon SMARCB1 loss and are sensitive to proteasome inhibition.

eLife | 2019

Renal medullary carcinoma (RMC) is a rare and deadly kidney cancer in patients of African descent with sickle cell trait. We have developed faithful patient-derived RMC models and using whole-genome sequencing, we identified loss-of-function intronic fusion events in one SMARCB1 allele with concurrent loss of the other allele. Biochemical and functional characterization of these models revealed that RMC requires the loss of SMARCB1 for survival. Through integration of RNAi and CRISPR-Cas9 loss-of-function genetic screens and a small-molecule screen, we found that the ubiquitin-proteasome system (UPS) was essential in RMC. Inhibition of the UPS caused a G2/M arrest due to constitutive accumulation of cyclin B1. These observations extend across cancers that harbor SMARCB1 loss, which also require expression of the E2 ubiquitin-conjugating enzyme, UBE2C. Our studies identify a synthetic lethal relationship between SMARCB1-deficient cancers and reliance on the UPS which provides the foundation for a mechanism-informed clinical trial with proteasome inhibitors.

Pubmed ID: 30860482 RIS Download

Research resources used in this publication

Associated grants

  • Agency: American Cancer Society, International
    Id: 132943-MRSG-18-202-01-TBG
  • Agency: NCI NIH HHS, United States
    Id: T32 CA136432
  • Agency: NIGMS NIH HHS, United States
    Id: T32 GM007226
  • Agency: NICHD NIH HHS, United States
    Id: K12 HD052896
  • Agency: NCI NIH HHS, United States
    Id: P50 CA101942
  • Agency: CureSearch for Children's Cancer, International
    Id: 328545
  • Agency: Alex's Lemonade Stand Foundation for Childhood Cancer, International
    Id: Young Investigator Award
  • Agency: U.S. Department of Defense, International
    Id: W81XWH-15-1-0659
  • Agency: NCI NIH HHS, United States
    Id: U01 CA176058
  • Agency: NCI NIH HHS, United States
    Id: K08 CA188073
  • Agency: Dana-Farber Cancer Institute, International
    Id: Wong Family Award
  • Agency: American Association for Cancer Research, International
    Id: 14-40-31-HONG
  • Agency: Boston Children's Hospital, International
    Id: OFD BTREC CDA
  • Agency: NCI NIH HHS, United States
    Id: U01 CA217848
  • Agency: NHGRI NIH HHS, United States
    Id: T32 HG002295
  • Agency: NIGMS NIH HHS, United States
    Id: T32 GM007753

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This is a list of tools and resources that we have found mentioned in this publication.


Cuffdiff (tool)

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Systems Transcriptional Activity Reconstruction (tool)

RRID:SCR_005622

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Promega (tool)

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QIAGEN (tool)

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Proteintech Group (tool)

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BD Biosciences (tool)

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CummeRbund (tool)

RRID:SCR_014568

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Cufflinks (tool)

RRID:SCR_014597

Software tool for transcriptome assembly and differential expression analysis for RNA-Seq. Includes script called cuffmerge that can be used to merge together several Cufflinks assemblies. It also handles running Cuffcompare as well as automatically filtering a number of transfrags that are likely to be artifacts. If the researcher has a reference GTF file, the researcher can provide it to the script to more effectively merge novel isoforms and maximize overall assembly quality.

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IRE1α (14C10) Rabbit mAb (antibody)

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Anti-α-Tubulin antibody (antibody)

RRID:AB_477593

This monoclonal targets α-Tubulin

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Anti-ARID1A Antibody (C-7) (antibody)

RRID:AB_10917727

This monoclonal targets ARID1A

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Cyclin B1 Antibody (antibody)

RRID:AB_2072132

This unknown targets Cyclin B1

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Cyclin B1 (V152) Mouse mAb (antibody)

RRID:AB_2233956

This monoclonal targets KALRN

View all literature mentions

cyclin D1 (M-20) (antibody)

RRID:AB_2070436

This polyclonal targets CCND1, CCND2

View all literature mentions

BAF47 (antibody)

RRID:AB_399481

This monoclonal targets Mouse BAF47 aa. 257-359

View all literature mentions

Cytokeratin 7 (antibody)

RRID:AB_2134314

This monoclonal targets KRT6A

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c-Myc Antibody (antibody)

RRID:AB_2151827

This polyclonal targets c-Myc

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MYC-human,MYC-mouse (antibody)

RRID:AB_631276

This polyclonal targets MYC

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UBE2C antibody (antibody)

RRID:AB_11232220

This monoclonal targets UBE2C

View all literature mentions

SMARCB1/SNF5 Antibody (antibody)

RRID:AB_2191714

This unknown targets SMARCB1/SNF5

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PSMB5 antibody (antibody)

RRID:AB_303709

This polyclonal targets PSMB5 antibody

View all literature mentions

BAF57/SMARCE1 Antibody (antibody)

RRID:AB_577243

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Brg-1 (G-7) (antibody)

RRID:AB_626762

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View all literature mentions

Lamin A/C Antibody (antibody)

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β-Actin (D6A8) Rabbit mAb (antibody)

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CrTac:NCr-Foxn1nu (organism)

RRID:IMSR_TAC:ncrnu

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FlowJo (software resource)

RRID:SCR_008520

Software for single-cell flow cytometry analysis. Its functions include management, display, manipulation, analysis and publication of the data stream produced by flow and mass cytometers.

View all literature mentions

G-401 (cell line)

RRID:CVCL_0270

Cell line G-401 is a Cancer cell line with a species of origin Homo sapiens (Human)

View all literature mentions

DESeq2 (software resource)

RRID:SCR_015687

Software package for differential gene expression analysis based on the negative binomial distribution. Used for analyzing RNA-seq data for differential analysis of count data, using shrinkage estimation for dispersions and fold changes to improve stability and interpretability of estimates.

View all literature mentions

TopHat (software resource)

RRID:SCR_013035

Software tool for fast and high throughput alignment of shotgun cDNA sequencing reads generated by transcriptomics technologies. Fast splice junction mapper for RNA-Seq reads. Aligns RNA-Seq reads to mammalian-sized genomes using ultra high-throughput short read aligner Bowtie, and then analyzes mapping results to identify splice junctions between exons.TopHat2 is accurate alignment of transcriptomes in presence of insertions, deletions and gene fusions.

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GATK (software resource)

RRID:SCR_001876

A software package to analyze next-generation resequencing data. The toolkit offers a wide variety of tools, with a primary focus on variant discovery and genotyping as well as strong emphasis on data quality assurance. Its robust architecture, powerful processing engine and high-performance computing features make it capable of taking on projects of any size. This software library makes writing efficient analysis tools using next-generation sequencing data very easy, and second it's a suite of tools for working with human medical resequencing projects such as 1000 Genomes and The Cancer Genome Atlas. These tools include things like a depth of coverage analyzers, a quality score recalibrator, a SNP/indel caller and a local realigner. (entry from Genetic Analysis Software)

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Gene Set Enrichment Analysis (software resource)

RRID:SCR_003199

Software package for interpreting gene expression data. Used for interpretation of a large-scale experiment by identifying pathways and processes.

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GraphPad Prism (software resource)

RRID:SCR_002798

Statistical analysis software that combines scientific graphing, comprehensive curve fitting (nonlinear regression), understandable statistics, and data organization. Designed for biological research applications in pharmacology, physiology, and other biological fields for data analysis, hypothesis testing, and modeling.

View all literature mentions

JMSU-1 (cell line)

RRID:CVCL_2081

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NCI-H2172 (cell line)

RRID:CVCL_1537

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RPMI-8226 (cell line)

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ComBat (software resource)

RRID:SCR_010974

Adjusting batch effects in microarray expression data using Empirical Bayes methods.

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A-549 (cell line)

RRID:CVCL_0023

Cell line A-549 is a Cancer cell line with a species of origin Homo sapiens (Human)

View all literature mentions

TopHat (software resource)

RRID:SCR_013035

Software tool for fast and high throughput alignment of shotgun cDNA sequencing reads generated by transcriptomics technologies. Fast splice junction mapper for RNA-Seq reads. Aligns RNA-Seq reads to mammalian-sized genomes using ultra high-throughput short read aligner Bowtie, and then analyzes mapping results to identify splice junctions between exons.TopHat2 is accurate alignment of transcriptomes in presence of insertions, deletions and gene fusions.

View all literature mentions

DESeq2 (software resource)

RRID:SCR_015687

Software package for differential gene expression analysis based on the negative binomial distribution. Used for analyzing RNA-seq data for differential analysis of count data, using shrinkage estimation for dispersions and fold changes to improve stability and interpretability of estimates.

View all literature mentions

Gene Set Enrichment Analysis (software resource)

RRID:SCR_003199

Software package for interpreting gene expression data. Used for interpretation of a large-scale experiment by identifying pathways and processes.

View all literature mentions

GraphPad Prism (software resource)

RRID:SCR_002798

Statistical analysis software that combines scientific graphing, comprehensive curve fitting (nonlinear regression), understandable statistics, and data organization. Designed for biological research applications in pharmacology, physiology, and other biological fields for data analysis, hypothesis testing, and modeling.

View all literature mentions

GATK (software resource)

RRID:SCR_001876

A software package to analyze next-generation resequencing data. The toolkit offers a wide variety of tools, with a primary focus on variant discovery and genotyping as well as strong emphasis on data quality assurance. Its robust architecture, powerful processing engine and high-performance computing features make it capable of taking on projects of any size. This software library makes writing efficient analysis tools using next-generation sequencing data very easy, and second it's a suite of tools for working with human medical resequencing projects such as 1000 Genomes and The Cancer Genome Atlas. These tools include things like a depth of coverage analyzers, a quality score recalibrator, a SNP/indel caller and a local realigner. (entry from Genetic Analysis Software)

View all literature mentions

FlowJo (software resource)

RRID:SCR_008520

Software for single-cell flow cytometry analysis. Its functions include management, display, manipulation, analysis and publication of the data stream produced by flow and mass cytometers.

View all literature mentions

ComBat (software resource)

RRID:SCR_010974

Adjusting batch effects in microarray expression data using Empirical Bayes methods.

View all literature mentions

UBE2C antibody (antibody)

RRID:AB_11232220

This monoclonal targets UBE2C

View all literature mentions

SMARCB1/SNF5 Antibody (antibody)

RRID:AB_2191714

This unknown targets SMARCB1/SNF5

View all literature mentions

Lamin A/C Antibody (antibody)

RRID:AB_2136278

This polyclonal targets Lamin A/C

View all literature mentions

PSMB5 antibody (antibody)

RRID:AB_303709

This polyclonal targets PSMB5 antibody

View all literature mentions

cyclin D1 (M-20) (antibody)

RRID:AB_2070436

This polyclonal targets CCND1, CCND2

View all literature mentions

IRE1α (14C10) Rabbit mAb (antibody)

RRID:AB_823545

This recombinant monoclonal targets IRE1-alpha

View all literature mentions

Cyclin B1 (V152) Mouse mAb (antibody)

RRID:AB_2233956

This monoclonal targets KALRN

View all literature mentions

c-Myc Antibody (antibody)

RRID:AB_2151827

This polyclonal targets c-Myc

View all literature mentions

Cyclin B1 Antibody (antibody)

RRID:AB_2072132

This unknown targets Cyclin B1

View all literature mentions

MYC-human,MYC-mouse (antibody)

RRID:AB_631276

This polyclonal targets MYC

View all literature mentions

BAF57/SMARCE1 Antibody (antibody)

RRID:AB_577243

This unknown targets BAF57/SMARCE1

View all literature mentions

β-Actin (D6A8) Rabbit mAb (antibody)

RRID:AB_10950489

This monoclonal targets β-Actin

View all literature mentions

Brg-1 (G-7) (antibody)

RRID:AB_626762

This monoclonal targets SMARCA4

View all literature mentions

Anti-α-Tubulin antibody (antibody)

RRID:AB_477593

This monoclonal targets α-Tubulin

View all literature mentions

BAF47 (antibody)

RRID:AB_399481

This monoclonal targets Mouse BAF47 aa. 257-359

View all literature mentions

Cytokeratin 7 (antibody)

RRID:AB_2134314

This monoclonal targets KRT6A

View all literature mentions

Anti-ARID1A Antibody (C-7) (antibody)

RRID:AB_10917727

This monoclonal targets ARID1A

View all literature mentions

β-Actin Antibody (C4) (antibody)

RRID:AB_2714189

This monoclonal targets β-Actin

View all literature mentions

A-549 (cell line)

RRID:CVCL_0023

Cell line A-549 is a Cancer cell line with a species of origin Homo sapiens (Human)

View all literature mentions

RPMI-8226 (cell line)

RRID:CVCL_0014

Cell line RPMI-8226 is a Cancer cell line with a species of origin Homo sapiens (Human)

View all literature mentions

G-401 (cell line)

RRID:CVCL_0270

Cell line G-401 is a Cancer cell line with a species of origin Homo sapiens (Human)

View all literature mentions

NCI-H2172 (cell line)

RRID:CVCL_1537

Cell line NCI-H2172 is a Cancer cell line with a species of origin Homo sapiens (Human)

View all literature mentions

JMSU-1 (cell line)

RRID:CVCL_2081

Cell line JMSU-1 is a Cancer cell line with a species of origin Homo sapiens (Human)

View all literature mentions

CrTac:NCr-Foxn1nu (organism)

RRID:IMSR_TAC:ncrnu

Mus musculus with name CrTac:NCr-Foxn1nu from IMSR.

View all literature mentions