CaMKII oxidation is a critical performance/disease trade-off acquired at the dawn of vertebrate evolution
Hernández-Ochoa, Erick O
Viswanathan, Meera C
Blum, Ian D
Do, Danh C
Granger, Jonathan M
Murphy, Kevin R
Antonescu, Corina M
Florea, Liliana D
Talbot, C Conover
Wagner, Kathryn R
Lovering, Richard M
Bianchet, Mario A
Wu, Mark N
Schneider, Martin F
Bever, Gabriel S
Anderson, Mark E
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AbstractAntagonistic pleiotropy is a foundational theory that predicts aging-related diseases are the result of evolved genetic traits conferring advantages early in life. Here we examine CaMKII, a pluripotent signaling molecule that contributes to common aging-related diseases, and find that its activation by reactive oxygen species (ROS) was acquired more than half-a-billion years ago along the vertebrate stem lineage. Functional experiments using genetically engineered mice and flies reveal ancestral vertebrates were poised to benefit from the union of ROS and CaMKII, which conferred physiological advantage by allowing ROS to increase intracellular Ca2+ and activate transcriptional programs important for exercise and immunity. Enhanced sensitivity to the adverse effects of ROS in diseases and aging is thus a trade-off for positive traits that facilitated the early and continued evolutionary success of vertebrates.
Calcium-Calmodulin-Dependent Protein Kinase Type 2
Reactive Oxygen Species--adverse effects
Identifier to cite or link to this itemhttp://hdl.handle.net/10713/15913
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