System-level metabolic pathways

System-level metabolic pathways refer to the complex, interconnected network of biochemical reactions that sustain life by converting nutrients into energy and biosynthetic precursors. These pathways, including glycolysis, the citric acid cycle, and oxidative phosphorylation, are highly regulated to maintain cellular and systemic homeostasis (Source: NIH, StatPearls). In many diseases, such as cancer and diabetes, these pathways are significantly altered, leading to metabolic reprogramming that supports pathological growth or causes systemic dysfunction (Source: PubMed, Nature Reviews Cancer). While not a single molecular target, the individual enzymes and transporters within these pathways serve as critical points for therapeutic intervention. Pharmacological agents often aim to normalize metabolic flux or selectively inhibit pathways that are overactive in disease states, though such interventions require careful management to avoid disrupting essential physiological processes (Source: Wikipedia, KEGG).

Other names

Metabolic networkCellular metabolismIntermediary metabolismMetabolic system

Drugs typically target specific rate-limiting enzymes or transporters within these pathways to modulate overall metabolic flux and restore homeostasis.