Journal
TRENDS IN ENDOCRINOLOGY AND METABOLISM
Volume 31, Issue 5, Pages 344-356Publisher
CELL PRESS
DOI: 10.1016/j.tem.2020.01.016
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Funding
- National Health and Medical Research Council of Australia [APP535917, APP1081869]
- Diabetes Australia Research Program [Y15G-SCHC, Y18G-SCHC, Y19GSCHC]
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The failure of insulin to suppress glucose production by the liver is a key aspect of the insulin resistance seen in type 2 diabetes. Lipid-activated protein kinase C epsilon has long been identified as an important mediator of diet-induced glucose intolerance and hepatic insulin resistance and the current view emphasizes a mechanism involving phosphorylation of the insulin receptor by the kinase to inhibit downstream insulin action. However, the significance of this direct effect in the liver has now been challenged by tissue-specific deletion of PKCE, which demonstrated a more prominent role for the kinase in adipose tissue to promote glucose intolerance. New insights regarding the role of PKCE therefore contribute to the understanding of indirect effects on hepatic glucose metabolism.
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