Hepatic acetyl-CoA content

Hepatic acetyl-CoA content refers to the amount of the metabolite acetyl-coenzyme A present within liver cells. Acetyl-CoA is a central molecule in cellular metabolism, acting as a key intermediate that links carbohydrate, fat, and protein catabolism to energy production via the citric acid cycle[3]. In hepatocytes, it is generated primarily from glycolysis-derived pyruvate or from β-oxidation of fatty acids[1][2]. The fate of hepatic acetyl-CoA includes entry into the citric acid cycle for ATP generation or conversion into ketone bodies during fasting or carbohydrate restriction[2][3]. Regulation of hepatic acetyl-CoA levels involves multiple enzymes such as ACOT12 and ACOT8, which hydrolyze excess acetyl-CoA to acetate—this process helps recycle free Coenzyme A required for ongoing fatty acid oxidation under conditions like starvation or diabetes[1][5]. Abnormal accumulation or depletion of hepatic acetyl-CoA can disrupt normal metabolic fluxes. For example, impaired ketogenesis leads to increased diversion of acetyl-CoA into gluconeogenesis and oxidative pathways—a feature observed in NAFLD progression toward NASH (non-alcoholic steatohepatitis)[2]. Elevated hepatic acetyl-CoA also drives histone hyperacetylation in steatotic livers; this epigenetic change increases DNA damage risk and may initiate hepatocellular carcinoma development in chronic fatty liver disease states[4]. Blood acetate has been proposed as an emerging biomarker reflecting shifts in hepatic energy metabolism during stress conditions such as prolonged fasting or uncontrolled diabetes mellitus[5]. Note: "Hepatic acetyl-CoA content" describes a quantitative state rather than a discrete molecular target like an enzyme or receptor. It is not itself considered a therapeutic target but rather an important readout/parameter reflecting underlying metabolic processes. Therefore, it should not be classified alongside canonical drug targets such as receptors or enzymes.

Other names

Liver acetyl-CoA levelhepatic acetyl coenzyme A concentrationliver acetyl-CoA pool