0000000001301893
AUTHOR
Mónica Gorbe
Synthesis and In Vitro Evaluation of a Photosensitizer-BODIPY Derivative for Potential Photodynamic Therapy Applications
A new photosensitizer (1) based on the 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) scaffold has been synthesized. 1 is water soluble and showed an intense absorption band at 490 nm (e=77600 cm-1M-1) and an emission at 514 nm. In vitro toxicity of 1 in the presence of light and in darkness has been studied with HeLa, HaCaT, MCF-7, and SCC-13 cell lines. Moreover, internalization studies of 1 in these cell lines were also performed. These results suggested that 1 is more toxic for SCC-13 and HeLa carcinoma cells than for the HaCaT noncancerous immortal human keratinocytes. Toxicity upon light irradiation was due to the formation of singlet oxygen and reactive oxygen species (ROS). Cel…
Halogen-containing BODIPY derivatives for photodynamic therapy
Abstract Two iodinated (1 and 2) and two brominated (3 and 4) BODIPY-based photosensitizers are prepared and characterized using slightly modified synthetic procedures previously described. 1–4 present intense absorption bands in the 510–540 nm interval and very weak emissions due to the presence of halogen atoms in their structure. Irradiation of aqueous solutions of 1–4 with visible light (wavelength > 475 nm) induce the generation of singlet oxygen with quantum yields of ca. 0.62–0.66 for the photosensitizers containing iodine atoms (1 and 2) and of ca. 0.16–0.21 for the brominated counterparts (3 and 4). In vitro studies carried out with HeLa, SCC-13 and HaCaT cell lines and the four ph…
Gated mesoporous silica nanoparticles for the controlled delivery of drugs in cancer cells
In recent years, mesoporous silica nanoparticles (MSNs) have been used as effective supports for the development of controlled-release nanodevices that are able to act as multifunctional delivery platforms for the encapsulation of therapeutic agents, enhancing their bioavailability and overcoming common issues such as poor water solubility and poor stability of some drugs. In particular, redox-responsive delivery systems have attracted the attention of scientists because of the intracellular reductive environment related to a high concentration of glutathione (GSH). In this context, we describe herein the development of a GSH-responsive delivery system based on poly(ethylene glycol)- (PEG-)…
CCDC 1819378: Experimental Crystal Structure Determination
Related Article: Mónica Gorbe, Ana M. Costero, Félix Sancenón, Ramón Martínez-Máñez, Rafael Ballesteros-Cillero, Luis. E. Ochando, Katherine Chulvi, Raúl Gotor, Salvador Gil|2019|Dyes Pigm.|160|198|doi:10.1016/j.dyepig.2018.08.007
CCDC 1819380: Experimental Crystal Structure Determination
Related Article: Mónica Gorbe, Ana M. Costero, Félix Sancenón, Ramón Martínez-Máñez, Rafael Ballesteros-Cillero, Luis. E. Ochando, Katherine Chulvi, Raúl Gotor, Salvador Gil|2019|Dyes Pigm.|160|198|doi:10.1016/j.dyepig.2018.08.007
CCDC 1819379: Experimental Crystal Structure Determination
Related Article: Mónica Gorbe, Ana M. Costero, Félix Sancenón, Ramón Martínez-Máñez, Rafael Ballesteros-Cillero, Luis. E. Ochando, Katherine Chulvi, Raúl Gotor, Salvador Gil|2019|Dyes Pigm.|160|198|doi:10.1016/j.dyepig.2018.08.007
CCDC 1819381: Experimental Crystal Structure Determination
Related Article: Mónica Gorbe, Ana M. Costero, Félix Sancenón, Ramón Martínez-Máñez, Rafael Ballesteros-Cillero, Luis. E. Ochando, Katherine Chulvi, Raúl Gotor, Salvador Gil|2019|Dyes Pigm.|160|198|doi:10.1016/j.dyepig.2018.08.007