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Comment
. 2023 Sep;33(9):653-654.
doi: 10.1038/s41422-023-00857-5.

Lactylation regulates cardiac function

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Comment

Lactylation regulates cardiac function

Shohini Ghosh-Choudhary et al. Cell Res. 2023 Sep.
No abstract available

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Figures

Fig. 1
Fig. 1. Schematic diagram showing a mechanistic model of α-MHC lactylation in the heart.
Lactylation, a novel PTM, occurs on a specific lysine residue of the α-MHC. This PTM alters the interaction of myosin with titin, thereby modulating cardiac contractility. Levels of lactate are reduced in the failing heart, perhaps due to elevated consumption of this metabolite. The generation of lactate is catalyzed by the enzyme LDHA, while efflux of this metabolite occurs through the transporter MCT4. The small molecule VB124 can inhibit the export of lactate from cells, thereby increasing intracellular levels of this metabolite and potentially aiding the failing heart.

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