ALKBH5-Dependent m(6)A Demethylation Promotes Cardiac Aging Through SLC38A3 Reduction and Glutamine Metabolic Alteration.

ALKBH5-driven m(6)A demethylation accelerates cardiac aging by decreasing SLC38A3 and disrupting glutamine metabolism, with knockdown delaying aging effects in mice.

• Why it matters: Understanding the molecular mechanisms of cardiac aging is crucial for developing targeted therapies to prevent age-related heart dysfunction, yet the role of m(6)A methylation remains unclear.
• What they did: The study used mouse models and cardiomyocyte cultures to analyze ALKBH5 expression, employing gene modulation techniques and sequencing to identify its targets and effects on cardiac aging processes.
• The result: Inhibiting ALKBH5 reduced aging phenotypes and improved heart function, highlighting the ALKBH5-SLC38A3-glutamine pathway as a promising target for mitigating cardiac aging.