Enhanced IGFL1 translation in response to IL-1β is controlled by distinct 3UTR elements
Cardamone, G.; Flohr, M.; Raue, R.; Bode, I.; Meyer, S. P.; Hauns, S.; Backofen, R.; Schmid, T.
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Translation is a crucial regulatory mechanism involved in several diseases, including cancer, where pro-inflammatory conditions within the microenvironment have been shown to modulate the translation of specific mRNAs. In the present study, we focused on the regulation of insulin growth factor-like family member 1 (IGFL1) in MCF7 breast cancer cells in response to pro-inflammatory IL-1{beta} and observed an induction of both transcription and translation. We characterized the 3 untranslated region as regulatory hub for the post-transcriptional regulation and identified a distinct G-rich region to confer the IL-1{beta}-dependent translational increase. Our study therefore provides new insights into the translation regulation of IGFL1 in the context of an inflammatory tumor microenvironment.
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