PXD037300-1
PXD037300 is an original dataset announced via ProteomeXchange.
Dataset Summary
| Title | FGF2 antiproliferative stimulus triggers proteomic and transcriptional changes associated with nucleolar disorganization in K-ras-driven mouse tumor cells (Chromatin MudPIT data) |
| Description | Chromatin plays a crucial role in the intermediation between cell signaling and gene expression. The nucleolus is sensitive to stress and can orchestrate a chain of cellular events in response to stress signals. Despite being a growth factor, FGF2 has anti-proliferative and tumor-suppressive functions in some cellular contexts. In this work, we investigated how the antiproliferative effect of FGF2 modulates chromatin, nucleolus, and rDNA-associated proteins. The chromatin and nucleolar proteome indicated that FGF2 stimulation modulates proteins related to transcription regulation, particularly rRNA expression, and chromatin remodeling proteins. Upon 24 hrs of FGF2 stimulation, the global transcriptional rate and nucleolus area increased in associationalong with intense nucleolar disorganization detected by fibrillarin dispersion and electron microscopy analyses. We confirmed that FGF2 stimulation induced immature rRNA accumulation by increasing rRNA transcription regardless of changes in ribosome profiling. The rDNA-associated protein analysis reinforced that FGF2 stimulus interferes with transcription and rRNA processing/modification, since the proteins Nolc1 and Tcof1 are were upregulated after FGF2 stimulation. Changes in rRNA expression may be crucial for triggering the antiproliferative effect induced by FGF2 since inhibiting RNA Pol I, responsible for rRNA expression, partially reversed the growth arrest induced by FGF2. Taken together, we demonstrate that the antiproliferative FGF2 stimulus triggers significant transcriptional changes, and modulation modulates of the main cell transcription site, the nucleolus, directly modulating the proteome of the rDNA loci. |
| HostingRepository | MassIVE |
| AnnounceDate | 2023-11-12 |
| AnnouncementXML | Submission_2023-11-12_10:39:03.611.xml |
| DigitalObjectIdentifier | |
| ReviewLevel | Non peer-reviewed dataset |
| DatasetOrigin | Original dataset |
| RepositorySupport | Unsupported dataset by repository |
| PrimarySubmitter | Francisca Nathalia de Luna Vitorino |
| SpeciesList | scientific name: Mus musculus; common name: house mouse; NCBI TaxID: 10090; |
| ModificationList | No PTMs are included in the dataset |
| Instrument | LTQ Orbitrap Elite |
Dataset History
| Revision | Datetime | Status | ChangeLog Entry |
|---|---|---|---|
| 0 | 2022-10-11 14:48:47 | ID requested | |
| ⏵ 1 | 2023-11-12 10:39:03 | announced |
Publication List
| no publication |
Keyword List
| submitter keyword: Proteomics, Chromatin, Nucleolus, FGF2, Transcription |
Contact List
| Julia Pinheiro Chagas da Cunha | |
|---|---|
| contact affiliation | Butantan Institute |
| contact email | julia.cunha@butantan.gov.br |
| lab head | |
| Francisca Nathalia de Luna Vitorino | |
| contact affiliation | Butantan Institute |
| contact email | fran_nathalia@hotmail.com |
| dataset submitter | |
Full Dataset Link List
| MassIVE dataset URI |
| Dataset FTP location NOTE: Most web browsers have now discontinued native support for FTP access within the browser window. But you can usually install another FTP app (we recommend FileZilla) and configure your browser to launch the external application when you click on this FTP link. Or otherwise, launch an app that supports FTP (like FileZilla) and use this address: ftp://massive.ucsd.edu/MSV000090511/ |
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