Systemic metabolic pathways and endogenous transport processes

Systemic metabolic pathways and endogenous transport processes is a broad physiological designation encompassing the complex network of biochemical reactions and cellular transport mechanisms essential for maintaining life. This system includes primary metabolic cycles such as the Krebs cycle and oxidative phosphorylation, as well as the transport of ions, nutrients, and waste products via specialized proteins like Solute Carriers (SLC) and ATP-binding cassette (ABC) transporters (National Center for Biotechnology Information, 2023). Rather than representing a single therapeutic target, this term describes the integrated environment where drug absorption, distribution, metabolism, and excretion (ADME) occur (FDA, 2020). Many pharmacological agents target specific nodes within this system—such as enzymes like HMG-CoA reductase or transporters like SGLT2—to treat conditions like hyperlipidemia or diabetes (StatPearls, 2023). Because these pathways are highly interconnected, therapeutic intervention at one point can lead to systemic shifts in homeostasis or significant drug-drug interactions. Understanding these processes is critical for predicting drug efficacy and safety profiles during clinical development.

Other names

Systemic metabolismEndogenous transport systemsMetabolic and transport networkPhysiological metabolic pathways

Drugs interact with specific enzymes (e.g., HMG-CoA reductase) or transporters (e.g., OAT1/3) within these systemic pathways to modulate metabolic flux or drug clearance (StatPearls, 2023).