[PDF][PDF] Global-run on sequencing identifies Gm11967 as an Akt-dependent long noncoding RNA involved in insulin sensitivity

D Santoleri, HW Lim, MJ Emmett, J Stoute, MJ Gavin… - Iscience, 2022 - cell.com
D Santoleri, HW Lim, MJ Emmett, J Stoute, MJ Gavin, J Sostre-Colón, K Uehara, JE Welles
Iscience, 2022cell.com
The insulin responsive Akt and FoxO1 signaling axis is a key regulator of the hepatic
transcriptional response to nutrient intake. Here, we used global run-on sequencing (GRO-
seq) to measure the nascent transcriptional response to fasting and refeeding as well as
define the specific role of hepatic Akt and FoxO1 signaling in mediating this response. We
identified 599 feeding-regulated transcripts, as well as over 6,000 eRNAs, and mapped their
dependency on Akt and FoxO1 signaling. Further, we identified several feeding-regulated …
Summary
The insulin responsive Akt and FoxO1 signaling axis is a key regulator of the hepatic transcriptional response to nutrient intake. Here, we used global run-on sequencing (GRO-seq) to measure the nascent transcriptional response to fasting and refeeding as well as define the specific role of hepatic Akt and FoxO1 signaling in mediating this response. We identified 599 feeding-regulated transcripts, as well as over 6,000 eRNAs, and mapped their dependency on Akt and FoxO1 signaling. Further, we identified several feeding-regulated lncRNAs, including the lncRNA Gm11967, whose expression was dependent upon the liver Akt-FoxO1 axis. Restoring Gm11967 expression in mice lacking liver Akt improved insulin sensitivity and induced glucokinase protein expression, indicating that Akt-dependent control of Gm11967 contributes to the translational control of glucokinase. More broadly, we have generated a unique genome-wide dataset that defines the feeding and Akt/FoxO1-dependent transcriptional changes in response to nutrient availability.
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