An abnormal epigenetic modification of RNA could be related to senescence and aging disorders, pointing towards the enzyme methyltransferase-like 1 (METTL1) as a potential therapeutic target.

With age, senescent cells become detrimental to tissues. Mayo Clinic scientists have observed this phenomenon in the lung alveoli, where senescent macrophages accumulated in aging tissue and in early stages of non-small-cell lung cancer (NSCLC) driven by the Kras oncogene. “We found that the macrophages were present in the earliest stages of the disease. Strategies targeting these cells for elimination or preventing their accumulation would be worthwhile to test in other conditions (assuming we find they occur),” Darren Baker, a Mayo Clinic senescent cell biologist and senior author of the study, told BioWorld.

Integrated Biosciences Inc., an early-stage startup that is combining synthetic biology and machine learning in the hunt for drugs that tackle cell senescence, has demonstrated its capabilities in a newly published study in Nature Aging on May 4, 2023, which employed artificial intelligence (AI) to identify three novel compounds that are highly selective for Bcl-2 and that exhibit favorable medicinal chemistry profiles.