Ins and outs of the TCA cycle: the central role of anaplerosis

M Inigo, S Deja, SC Burgess - Annual review of nutrition, 2021 - annualreviews.org
The reactions of the tricarboxylic acid (TCA) cycle allow the controlled combustion of fat and
carbohydrate. In principle, TCA cycle intermediates are regenerated on every turn and can …

[HTML][HTML] The key role of anaplerosis and cataplerosis for citric acid cycle function

OE Owen, SC Kalhan, RW Hanson - Journal of Biological Chemistry, 2002 - ASBMB
The oxidation of acetyl-CoA to CO2 by the TCA1 cycle is the central process in energy
metabolism. However, the TCA cycle also functions in biosynthetic pathways in which …

[HTML][HTML] Pyruvate-carboxylase-mediated anaplerosis promotes antioxidant capacity by sustaining TCA cycle and redox metabolism in liver

DA Cappel, S Deja, JAG Duarte, B Kucejova, M Iñigo… - Cell metabolism, 2019 - cell.com
The hepatic TCA cycle supports oxidative and biosynthetic metabolism. This dual
responsibility requires anaplerotic pathways, such as pyruvate carboxylase (PC), to …

Anaplerotic molecules: current and future

H Brunengraber, CR Roe - Journal of inherited metabolic disease, 2006 - Springer
This review presents the concepts of anaplerosis and cataplerosis in relation to the
regulation of citric acid cycle operation. Anaplerosis is the re-filling of the catalytic …

[HTML][HTML] ATP-consuming futile cycles as energy dissipating mechanisms to counteract obesity

AJ Brownstein, M Veliova, R Acin-Perez… - Reviews in Endocrine …, 2022 - Springer
Obesity results from an imbalance in energy homeostasis, whereby excessive energy intake
exceeds caloric expenditure. Energy can be dissipated out of an organism by producing …

The tricarboxylic acid (TCA) cycle: a malleable metabolic network to counter cellular stress

A MacLean, F Legendre… - Critical Reviews in …, 2023 - Taylor & Francis
The tricarboxylic acid (TCA) cycle is a primordial metabolic pathway that is conserved from
bacteria to humans. Although this network is often viewed primarily as an energy producing …

Glutamate synthesis has to be matched by its degradation–where do all the carbons go?

U Sonnewald - Journal of neurochemistry, 2014 - Wiley Online Library
The central process in energy production is the oxidation of acetyl‐CoA to CO 2 by the
tricarboxylic acid (TCA, Krebs, citric acid) cycle. However, this cycle functions also as a …

Which way does the citric acid cycle turn during hypoxia? The critical role of α‐ketoglutarate dehydrogenase complex

C Chinopoulos - Journal of neuroscience research, 2013 - Wiley Online Library
The citric acid cycle forms a major metabolic hub and as such it is involved in many disease
states involving energetic imbalance. In spite of the fact that it is being branded as a “cycle” …

[HTML][HTML] Chemical knockout of pantothenate kinase reveals the metabolic and genetic program responsible for hepatic coenzyme A homeostasis

YM Zhang, S Chohnan, KG Virga, RD Stevens… - Chemistry & biology, 2007 - cell.com
Coenzyme A (CoA) is the major acyl group carrier in intermediary metabolism. Hopantenate
(HoPan), a competitive inhibitor of the pantothenate kinases, was used to chemically …

[HTML][HTML] Acetate production from glucose and coupling to mitochondrial metabolism in mammals

X Liu, DE Cooper, AA Cluntun, MO Warmoes, S Zhao… - Cell, 2018 - cell.com
Acetate is a major nutrient that supports acetyl-coenzyme A (Ac-CoA) metabolism and thus
lipogenesis and protein acetylation. However, its source is unclear. Here, we report that …