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Int J Radiat Oncol Biol Phys. 1994 Aug 30;30(1):229-34.

Radiation induction of immediate early genes: effectors of the radiation-stress response.

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University of Chicago, Department of Radiation and Cellular Oncology, IL.


Recent studies have demonstrated that the early response genes c-jun, Egr-1, c-fos, and NF kappa B are induced following exposure of mammalian cells to ionizing radiation. We propose that the products of these early response genes regulate downstream genes that are important in the adaptation of cells and tissues to radiation-induced stress. Potential downstream targets include cytokine and growth factor genes as well as deoxyribonucleic acid (DNA) repair genes. Early response gene products may also regulate cell cycle progression following cellular x-irradiation. Signal transduction pathways that allow cells to adapt to radiation may provide molecular targets to modify tumor and normal responses to radiotherapy.

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