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Author Spotlight: Assessing the Potential of Circulating Tumor Cells in Leptomeningeal Disease Research
Published on: March 29, 2024
SFPQ promotes an oncogenic transcriptomic state in melanoma
O Bi1, C A Anene2, J Nsengimana3
1School of Applied Sciences, University of Huddersfield, Huddersfield, UK.
Splicing factor, proline- and glutamine-rich (SFPQ) protein drives melanoma by interacting with oncogenic RNAs. Lowering SFPQ slows cancer growth, migration, and impacts key melanoma-associated genes, suggesting SFPQ as a prognostic biomarker.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Splicing factor, proline- and glutamine-rich (SFPQ) is linked to various cancers via RNA interactions.
- The specific role of SFPQ in melanoma pathogenesis is not well understood.
Purpose of the Study:
- To investigate the function and molecular mechanisms of SFPQ in melanoma.
- To evaluate SFPQ as a potential prognostic biomarker for melanoma.
Main Methods:
- SFPQ knockdown in melanoma cells.
- RNA immunoprecipitation sequencing (RIP-seq) to identify SFPQ-RNA interactions.
- Functional assays for cell growth, migration, EMT, apoptosis, and glycolysis.
- Analysis of clinical melanoma patient cohorts.
Main Results:
- SFPQ knockdown inhibited melanoma cell growth, migration, epithelial-mesenchymal transition, apoptosis, and glycolysis.
- RIP-seq revealed a reprogrammed SFPQ-RNA interactome in melanoma, enriched with oncogenic transcripts like SOX10, AMIGO2, and LINC00511.
- SFPQ is essential for the expression of several melanoma-associated coding and long non-coding RNAs (lncRNAs).
- lncRNAs LINC00511 and LINC01234 promote melanoma phenotypes, with LINC00511 modulating the miR-625-5p/PKM2 axis.
- Elevated SFPQ expression in primary tumors correlates with melanoma prognosis.
Conclusions:
- SFPQ acts as a significant driver of melanoma progression through RNA interactions that enhance oncogenic transcript expression.
- SFPQ and its associated lncRNAs represent potential therapeutic targets and prognostic biomarkers in melanoma.
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