Metabolic memory in diabetes: decoding the molecular basis of persistent cellular programming for next-generation therapeutic strategies
Abstract
Diabetic complications often progress despite successful normalization of blood glucose and glycated hemoglobin (HbA1c), highlighting a major limitation of current glucose-centered therapeutic strategies. Although metabolic memory has traditionally been attributed to epigenetic alterations or oxidative stress, these mechanisms alone cannot adequately explain the persistence, tissue specificity, and progressive nature of diabetic complications. This review introduces Persistent Cellular Programming (PCP) as a novel systems-level conceptual framework that redefines metabolic memory as a stable pathological cellular state maintained by coordinated interactions among metabolic remodeling, epigenetic regulation, protein post-translational modifications, non-coding RNAs, mitochondrial dysfunction, organelle crosstalk, redox imbalance, immune reprogramming, and transcriptional network stabilization. Rather than functioning independently, these regulatory layers establish self-reinforcing molecular circuits that preserve pathological cellular phenotypes long after restoration of normoglycemia. The review critically evaluates how metabolic rewiring, inter-organelle communication, and tissue-specific cellular plasticity collectively sustain diabetic complications and examines why conventional single-target therapies frequently fail to reverse these integrated networks. Major knowledge gaps are identified, including the reversibility of persistent cellular programming, the role of…
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