Key result
The authors argue that attributing cardiomyopathy in ACC1/2 knockout hearts to excessive fatty acid oxidation alone lacks convincing evidence and ignores ACC1's role in lipidome homeostasis.
This critique suggests that loss of ACC1's role in lipidome homeostasis and mitochondrial maturation, rather than excessive fatty acid oxidation alone, may drive cardiomyopathy in double knockout models.
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Tian et al. (2026) conducted a letter in Cardiomyopathy. Cardiomyocyte-specific deletion of acetyl-CoA carboxylase 1 and 2 vs. Single ACC2 deletion or wild-type was evaluated. The authors argue that attributing cardiomyopathy in ACC1/2 knockout hearts to excessive fatty acid oxidation alone lacks convincing evidence and ignores ACC1's role in lipidome homeostasis.
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