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The Beta Secretase BACE1 Regulates the Expression of Insulin Receptor in the Liver

Overview
Journal Nat Commun
Specialty Biology
Date 2018 Apr 4
PMID 29610518
Citations 32
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Abstract

Insulin receptor (IR) plays a key role in the control of glucose homeostasis; however, the regulation of its cellular expression remains poorly understood. Here we show that the amount of biologically active IR is regulated by the cleavage of its ectodomain, by the β-site amyloid precursor protein cleaving enzyme 1 (BACE1), in a glucose concentration-dependent manner. In vivo studies demonstrate that BACE1 regulates the amount of IR and insulin signaling in the liver. During diabetes, BACE1-dependent cleavage of IR is increased and the amount of IR in the liver is reduced, whereas infusion of a BACE1 inhibitor partially restores liver IR. We suggest the potential use of BACE1 inhibitors to enhance insulin signaling during diabetes. Additionally, we show that plasma levels of cleaved IR reflect IR isoform A expression levels in liver tumors, which prompts us to propose that the measurement of circulating cleaved IR may assist hepatic cancer detection and management.

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References
1.
Yan R, Bienkowski M, Shuck M, Miao H, Tory M, Pauley A . Membrane-anchored aspartyl protease with Alzheimer's disease beta-secretase activity. Nature. 1999; 402(6761):533-7. DOI: 10.1038/990107. View

2.
. Soluble insulin receptor ectodomain is elevated in the plasma of patients with diabetes. Diabetes. 2007; 56(8):2028-35. DOI: 10.2337/db07-0394. View

3.
Morzyglod L, Cauzac M, Popineau L, Denechaud P, Fajas L, Ragazzon B . Growth factor receptor binding protein 14 inhibition triggers insulin-induced mouse hepatocyte proliferation and is associated with hepatocellular carcinoma. Hepatology. 2016; 65(4):1352-1368. DOI: 10.1002/hep.28972. View

4.
Leibiger B, Leibiger I, Moede T, Kemper S, Kulkarni R, Kahn C . Selective insulin signaling through A and B insulin receptors regulates transcription of insulin and glucokinase genes in pancreatic beta cells. Mol Cell. 2001; 7(3):559-70. DOI: 10.1016/s1097-2765(01)00203-9. View

5.
Frasca F, Pandini G, Scalia P, Sciacca L, MINEO R, Costantino A . Insulin receptor isoform A, a newly recognized, high-affinity insulin-like growth factor II receptor in fetal and cancer cells. Mol Cell Biol. 1999; 19(5):3278-88. PMC: 84122. DOI: 10.1128/MCB.19.5.3278. View