ArticleCell cycle (Georgetown, Tex.)2012
Drosha mediates destabilization of Lin28 mRNA targets.
Article in Cell cycle (Georgetown, Tex.), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed, 4 citations in OpenAlex.
- MicroRNA-independent roles of the RNase III enzymes Drosha and Dicer.Open biology · 2013Review
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Authors and funding
6 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Lin28 plays important roles in development, stem cell maintenance, oncogenesis and metabolism. As an RNA-binding protein, it blocks the biogenesis primarily of let-7 family miRNAs and also promotes translation of a cohort of mRNAs involved in cell growth, metabolism and pluripotency, likely through recognition of distinct sequence and structural motifs within mRNAs. Here, we show that one such motif, shared by multiple Lin28-responsive elements (LREs) present in Lin28 mRNA targets also participates in a Drosha-dependent regulation and may contribute to destabilization of its cognate mRNAs. We further show that the same mutations in the LREs known to abolish Lin28 binding and stimulation of translation also abrogate Drosha-dependent mRNA destabilization, and that this effect is independent of miRNAs, uncovering a previously unsuspected coupling between Drosha-dependent destabilization and Lin28-mediated regulation. Thus, Lin28-dependent stimulation of translation of target mRNAs may, in part, serve to compensate for their intrinsic instability, thereby ensuring optimal levels of expression of genes critical for cell viability, metabolism and pluripotency.
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