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Native Polyacrylamide Gel Electrophoresis Immunoblot Analysis of Endogenous IRF5 Dimerization
Published on: October 6, 2019
Enhanced IGFL1 translation in response to IL-1β is controlled by distinct 3'UTR elements.
Giulia Cardamone1, Melanie Flohr1, Rebecca Raue1
1Institute of Biochemistry I, Faculty of Medicine, Goethe University Frankfurt, Frankfurt am Main, Germany.
Plos One
|June 25, 2026
Summary
Pro-inflammatory conditions regulate gene translation in cancer. This study reveals how interleukin-1 beta (IL-1β) enhances insulin growth factor-like family member 1 (IGFL1) translation in breast cancer cells via its 3' untranslated region.
Area of Science:
- Molecular Biology
- Cancer Research
- Cell Biology
Background:
- Gene translation is a critical regulatory process implicated in various diseases, including cancer.
- The tumor microenvironment's inflammatory state can significantly influence mRNA translation.
- Understanding specific gene regulation in response to inflammation is key to cancer research.
Purpose of the Study:
- To investigate the translational regulation of insulin growth factor-like family member 1 (IGFL1) in MCF7 breast cancer cells.
- To determine the role of pro-inflammatory interleukin-1 beta (IL-1β) in IGFL1 gene expression.
- To identify regulatory elements within the IGFL1 gene responsible for inflammation-induced translational control.
Main Methods:
- Utilized MCF7 breast cancer cell line.
- Applied pro-inflammatory cytokine IL-1β stimulation.
- Performed transcriptional and translational assays.
- Characterized the 3' untranslated region (3' UTR) of IGFL1 mRNA.
Main Results:
- Observed a significant induction of both transcription and translation of IGFL1 upon IL-1β stimulation.
- Identified the 3' untranslated region of IGFL1 as a key regulatory hub for post-transcriptional control.
- Discovered a specific G-rich region within the 3' UTR that mediates the IL-1β-dependent increase in translation.
Conclusions:
- IL-1β stimulation enhances IGFL1 expression at both transcriptional and translational levels in breast cancer cells.
- The 3' UTR of IGFL1 plays a crucial role in mediating translational responses to inflammatory signals.
- This study provides novel insights into IGFL1 translational regulation within an inflammatory tumor microenvironment.
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