PXD014134

PXD014134 is an original dataset announced via ProteomeXchange.

Title	Re-expression of SMARCA4/BRG1 in Small Cell Carcinoma of Ovary, Hypercalcemic Type (SCCOHT) promotes an epithelial-like gene signature through an AP-1-dependent mechanism
Description	Small cell carcinoma of the ovary, hypercalcemic type (SCCOHT) is a rare and aggressive form of ovarian cancer. SCCOHT tumors have inactivating mutations in SMARCA4 (BRG1), one of the two mutually exclusive ATPases of the SWI/SNF chromatin remodeling complex. To address the role that BRG1 loss plays in SCCOHT tumorigenesis, we performed integrative multi-omic analyses in SCCOHT cell lines +/- BRG1 re-expression. BRG1 re-expression induced a gene and protein signature similar to an epithelial cell and gained chromatin accessibility sites correlated with other epithelial originating TCGA tumors. Furthermore, AP-1 motifs were enriched at the promoters of highly upregulated epithelial genes. Using a dominant negative AP-1 cell line, we found that both AP-1 DNA binding activity and BRG1 re-expression are necessary for the gene and protein expression of epithelial genes. Our study demonstrates that BRG1 re-expression drives an epithelial-like gene and protein signature in SCCOHT cells that depends upon AP-1 activity.
HostingRepository	PRIDE
AnnounceDate	2021-01-15
AnnouncementXML	Submission_2021-01-15_00:23:05.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Gian Luca Negri
SpeciesList	scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationList	TMT6plex-126 reporter+balance reagent acylated residue; monohydroxylated residue; iodoacetamide derivatized residue
Instrument	Orbitrap Fusion

Revision	Datetime	Status	ChangeLog Entry
0	2019-06-05 01:55:23	ID requested
⏵ 1	2021-01-15 00:23:06	announced

Orlando KA, Douglas AK, Abudu A, Wang Y, Tessier-Cloutier B, Su W, Peters A, Sherman LS, Moore R, Nguyen V, Negri GL, Colborne S, Morin GB, Kommoss F, Lang JD, Hendricks WP, Raupach EA, Pirrotte P, Huntsman DG, Trent JM, Parker JS, Raab JR, Weissman BE, Re-expression of SMARCA4/BRG1 in small cell carcinoma of ovary, hypercalcemic type (SCCOHT) promotes an epithelial-like gene signature through an AP-1-dependent mechanism. Elife, 9():(2020) [pubmed]

submitter keyword: ovarian carcinoma SMARCA4

Gregg Morin
contact affiliation	Canada's Michael Smith Genome Sciences Centre, BC Cancer Agency, Vancouver V5Z 1L3, Canada.
contact email	gmorin@bcgsc.ca
lab head
Gian Luca Negri
contact affiliation	gsc
contact email	gnegri@bcgsc.ca
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD014134
     1. Label: PRIDE project
     2. Name: Re-expression of SMARCA4/BRG1 in Small Cell Carcinoma of Ovary, Hypercalcemic Type (SCCOHT) promotes an epithelial-like gene signature through an AP-1-dependent mechanism