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The RNA Binding Protein SRSF1 modulates Immune and Cancer pathways by regulating MyD88 transcription
Title
The RNA Binding Protein SRSF1 modulates Immune and Cancer pathways by regulating MyD88 transcription.
Creator
Ritchie, Anastasia, Caputi, Massimo, Florida Atlantic University, Department of Biomedical Science, Charles E. Schmidt College of Medicine
Abstract/Description
Serine/Arginine splicing factor 1 (SRSF1), a member of the Serine/Arginine rich (SR) RNA-binding proteins (RBPs) family, regulates mRNA biogenesis at multiple steps and is deregulated in cancer and autoimmune diseases. Preliminary studies show that members of the SR protein family play a role in cellular transcription. We investigated SRSF1’s role in cellular gene transcription utilizing time-course RNA-Seq and nuclear run-on assays, validating a subset of genes transcriptionally regulated...
Show moreSerine/Arginine splicing factor 1 (SRSF1), a member of the Serine/Arginine rich (SR) RNA-binding proteins (RBPs) family, regulates mRNA biogenesis at multiple steps and is deregulated in cancer and autoimmune diseases. Preliminary studies show that members of the SR protein family play a role in cellular transcription. We investigated SRSF1’s role in cellular gene transcription utilizing time-course RNA-Seq and nuclear run-on assays, validating a subset of genes transcriptionally regulated following SRSF1 overexpression. Pathway analysis showed that genes in the TNF/IL17 pathways were enriched in this dataset. Furthermore, we showed that MyD88, a strong activator of TNF transcription through transcription factors NF-κB and AP-1, is a primary target of SRSF1’s transcriptional activity. We propose that SRSF1 activates the transcription factors NF-κB and AP-1 through MyD88 pathway. SRSF1 overexpression regulates several genes that are deregulated in malignancies and immune disease, suggesting a role for SRSF1’s transcriptional activity in oncogenesis and immune response regulation.
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Date Issued
2020
PURL
http://purl.flvc.org/fau/fd/FA00013569
Subject Headings
RNA-Binding Proteins, Serine-Arginine Splicing Factors, Cancer, Autoimmune diseases, Transcription, Genetic, RNA, Messenger, Myeloid Differentiation Factor 88.
Format
Document (PDF)