Ionizing radiation sensitization

Ionizing radiation sensitization" represents strategies or interventions designed to increase the vulnerability of cells, primarily tumor cells, to the damaging effects of ionizing radiation. This is typically accomplished by targeting various molecular pathways involved in DNA damage repair, cell cycle regulation, and redox homeostasis. For example, inhibitors of DNA double-strand break repair proteins (such as PARP inhibitors), modulation of cell cycle checkpoint controls (like p53), or agents that enhance mitochondrial or NADPH oxidase-derived ROS production are explored as radiosensitizers[1][3]. These approaches do not define a single molecular entity but instead encompass a variety of pharmacological and genetic interventions directed at multiple cellular components that influence radiation response. Accordingly, "ionizing radiation sensitization" is not itself a molecule, receptor, protein, or gene, but a conceptual therapeutic approach. Any structured information should refer instead to specific molecular targets (such as DNA-dependent protein kinase, PARP1, p53, etc.) that are manipulated to achieve sensitization[1][3].

Other names

Sensitization to ionizing radiationradiosensitizationradiation sensitization

Null—usually involves inhibition of DNA repair, induction of ROS, cell cycle modulation, or apoptotic priming of tumor cells