Hypoxic Cell (Bioreductive Trapping)

Hypoxic cells within tumors represent a microenvironment with low oxygen levels that can be exploited for targeted therapy and imaging. Bioreductive trapping leverages the preferential enzymatic reduction of certain molecules (e.g., nitroimidazoles) under hypoxic conditions. This process leads to the formation of reactive intermediates that covalently bind to intracellular macromolecules, resulting in their selective retention and/or activation of cytotoxic agents within hypoxic cells, thereby targeting these treatment-resistant cells while sparing normal tissue.

Other names

Tumor HypoxiaBioreductive ActivationHypoxia-Selective TargetingNitroimidazole-based targeting

Enzymatic reduction of compounds in hypoxic conditions, leading to covalent binding to intracellular macromolecules and selective accumulation/activation of cytotoxic agents.