Synthetic Cell/Condition-Specific Promoters and Enhancers

Synthetic promoters that are differentially modulated between certain diseased cells (e.g., cancer cells) and normal cells (e.g., non-cancer cells) are described. The synthetic promoters may be used to drive expression of gene(s) of interest in a specific cell type or during a specific cellular state. These synthetic promoters are useful, for example, for targeted expression of therapeutic molecules in diseased cells.