Ketone bodies and two-compartment tumor metabolism: Stromal ketone production fuels mitochondrial biogenesis in epithelial cancer cells
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چکیده
منابع مشابه
Metabolism of ketone bodies in pregnant sheep.
A combination of isotope-dilution and arteriovenous-difference techniques was used to determine the significance of ketones to energy homoeostasis in fasted pregnant ewes. 2. There was incomplete interconversion of D(-) 3-hydroxybutyrate (3HB) and acetoacetate (AcAc) and therefore neither entry rate nor oxidation of total ketone bodies could be estimated by assuming circulating ketone bodies re...
متن کاملTwo-compartment tumor metabolism
Previously, we proposed a new paradigm to explain the compartment-specific role of autophagy in tumor metabolism. In this model, autophagy and mitochondrial dysfunction in the tumor stroma promotes cellular catabolism, which results in the production of recycled nutrients. These chemical building blocks and high-energy "fuels" would then drive the anabolic growth of tumors, via autophagy resist...
متن کاملRole of ketone bodies in perinatal myocardial energy metabolism.
Metabolic changes at around the time of birth are crucial for life. Here we review the energy utilization in the myocardium, emphasizing ketone body metabolism. Before birth, glucose and lactate are the major energy substrates for the myocardium. Long-chain fatty acids (LCFA) are normally not available as an energy substrate for the fetal heart; however, when LCFA are supplied artificially in n...
متن کاملThe therapeutic implications of ketone bodies: the effects of ketone bodies in pathological conditions: ketosis, ketogenic diet, redox states, insulin resistance, and mitochondrial metabolism.
The effects of ketone body metabolism suggests that mild ketosis may offer therapeutic potential in a variety of different common and rare disease states. These inferences follow directly from the metabolic effects of ketosis and the higher inherent energy present in d-beta-hydroxybutyrate relative to pyruvate, the normal mitochondrial fuel produced by glycolysis leading to an increase in the D...
متن کاملKetone bodies, potential therapeutic uses.
Ketosis, meaning elevation of D-beta-hydroxybutyrate (R-3hydroxybutyrate) and acetoacetate, has been central to starving man's survival by providing nonglucose substrate to his evolutionarily hypertrophied brain, sparing muscle from destruction for glucose synthesis. Surprisingly, D-beta-hydroxybutyrate (abbreviated "betaOHB") may also provide a more efficient source of energy for brain per uni...
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ژورنال
عنوان ژورنال: Cell Cycle
سال: 2012
ISSN: 1538-4101,1551-4005
DOI: 10.4161/cc.22136