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| Chennoufi, Rahima; Bougherara, Houcine; Gagey-eilstein, Nathalie; Dumat, Blaise; Henry, Etienne; Subra, Frederic; Bury-mone, Stephanie; Mahuteau-betzer, Florence; Tauc, Patrick; Teulade-fichou, Marie-paule; Deprez, Eric. |
| Photodynamic therapy (PDT) leads to cell death by using a combination of a photosensitizer and an external light source for the production of lethal doses of reactive oxygen species (ROS). Since a major limitation of PDT is the poor penetration of UV-visible light in tissues, there is a strong need for organic compounds whose activation is compatible with near-infrared excitation. Triphenylamines (TPAs) are fluorescent compounds, recently shown to efficiently trigger cell death upon visible light irradiation (458 nm), however outside the so-called optical/therapeutic window. Here, we report that TPAs target cytosolic organelles of living cells, mainly mitochondria, triggering a fast apoptosis upon two-photon excitation, thanks to their large two-photon... |
| Tipo: Text |
Palavras-chave: Apoptosis; Small molecules. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00320/43168/42726.pdf |
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| Li, Jiayao; Henry, Etienne; Wang, Lanmei; Delelis, Olivier; Wang, Huan; Simon, Francoise; Tauc, Patrick; Brochon, Jean-claude; Zhao, Yunlong; Deprez, Eric. |
| Fatty acid-binding proteins (FABPs) are small cytosolic proteins, largely distributed in invertebrates and vertebrates, which accomplish uptake and intracellular transport of hydrophobic ligands such as fatty acids. Although long chain fatty acids play multiple crucial roles in cellular functions (structural, energy metabolism, regulation of gene expression), the precise functions of FABPs, especially those of invertebrate species, remain elusive. Here, we have identified and characterized a novel FABP family member, Cq-FABP, from the hepatopancreas of red claw crayfish Cherax quadricarinatus. We report the characterization of fatty acid-binding affinity of Cq-FABP by four different competitive fluorescence-based assays. In the two first approaches, the... |
| Tipo: Text |
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| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00206/31770/30186.pdf |
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