Penas Tallón, CristinaSánchez López, Mateo IsidroGuerra Varela, JorgeSánchez Piñón, LauraVázquez Sentís, Marco EugenioMascareñas Cid, José Luis2019-03-272019-03-272016C. Penas, M. I. Sánchez, J. Guerra-Varela, L. Sanchez, M. E. Vázquez, J. L. Mascareñas (2016). Light‐Controlled Cellular Internalization and Cytotoxicity of Nucleic Acid‐Binding Agents: Studies in Vitro and in Zebrafish Embryos. ChemBioChem, 17, 37-41. DOI: 10.1002/cbic.201500455http://hdl.handle.net/10347/18485This is the peer reviewed version of the following article: C. Penas, M. I. Sánchez, J. Guerra-Varela, L. Sanchez, M. E. Vázquez, J. L. Mascareñas, ChemBioChem 2016, 17, 37-41, which has been published in final form at https://doi.org/10.1002/cbic.201500455. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived VersionsWe synthesized octa‐arginine conjugates of DNA‐binding agents (bisbenzamidine, acridine and Thiazole Orange) and demonstrated that their DNA binding and cell internalization can be inhibited by appending a (negatively charged) oligoglutamic tail through a photolabile linker. UV irradiation released the parent conjugates, thus restoring cell internalization and biological activity. Assays with zebrafish embryos demonstrates the potential of this prodrug strategy for controlling in vivo cytotoxicityeng© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived VersionsDNA recognitionCaged compoundsFluorescent probesPeptidesSupramolecular chemistryjournal article10.1002/cbic.2015004551439-7633open access