Proteomics

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Schlafen 5 as a Novel Therapeutic Target in Pancreatic Ductal Adenocarcinoma

ABSTRACT: We provide evidence that a member of the human Schlafen (SLFN) family of proteins, SLFN5, is overexpressed in human pancreatic ductal adenocarcinoma (PDAC). Targeted deletion of SLFN5 results in decreased PDAC cell proliferation and suppresses PDAC tumorigenesis in in vivo PDAC models. Importantly, high expression levels of SLFN5 correlate with worse outcomes in PDAC patients, implicating SLFN5 in the pathophysiology of PDAC that leads to poor outcomes. Our studies establish novel regulatory effects of SLFN5 on cell cycle progression through binding/blocking of the transcriptional repressor E2F7, promoting transcription of key genes that stimulate S phase progression. Together, our studies suggest an essential role for SLFN5 in PDAC and support the potential for developing new therapeutic approaches for the treatment of pancreatic cancer through SLFN5 targeting.

INSTRUMENT(S): LTQ Orbitrap Velos

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Cell Culture

SUBMITTER: Paul Thomas  

LAB HEAD: Leonidas C. Platanias

PROVIDER: PXD021749 | Pride | 2021-04-14

REPOSITORIES: pride

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Action DRS
19-1638.sf3 Other
20190329_vcs075_19-1638_Platanias_DOX-IFNa4A.raw Raw
20190329_vcs075_19-1638_Platanias_DOX-IFNa4B.raw Raw
20190329_vcs075_19-1638_Platanias_DOX-IFNa4C.raw Raw
20190329_vcs075_19-1638_Platanias_DOX-IFNa4D.raw Raw
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Publications

We provide evidence that a member of the human Schlafen (SLFN) family of proteins, SLFN5, is overexpressed in human pancreatic ductal adenocarcinoma (PDAC). Targeted deletion of SLFN5 results in decreased PDAC cell proliferation and suppresses PDAC tumorigenesis in in vivo PDAC models. Importantly, high expression levels of SLFN5 correlate with worse outcomes in PDAC patients, implicating SLFN5 in the pathophysiology of PDAC that leads to poor outcomes. Our studies establish novel regulatory eff  ...[more]

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