0000000001306306
AUTHOR
Elsa Hernando
Bis(imidazolium) salts derived from amino acids as receptors and transport agents for chloride anions
The binding properties of bis(imidazolium) hosts 1a–c derived from amino acids towards different anions have been studied by 1H NMR titration experiments in 95 : 05 CD3CN : H2O at 303 K, ESI-MS and theoretical calculations. Among this family, the salt 1c showed a strong and high selectivity for chloride anions. Transmembrane chloride transport activity has also been studied for the three bis(imidazolium) based transporters in POPC liposome models, and compound 1a was identified as an active chloride/nitrate exchanger.
Facilitated Anion Transport Induces Hyperpolarization of the Cell Membrane That Triggers Differentiation and Cell Death in Cancer Stem Cells
Facilitated anion transport potentially represents a powerful tool to modulate various cellular functions. However, research into the biological effects of small molecule anionophores is still at an early stage. Here we have used two potent anionophore molecules inspired in the structure of marine metabolites tambjamines to gain insight into the effect induced by these compounds at the cellular level. We show how active anionophores, capable of facilitating the transmembrane transport of chloride and bicarbonate in model phospholipid liposomes, induce acidification of the cytosol and hyperpolarization of plasma cell membranes. We demonstrate how this combined effect can be used against canc…
CCDC 1414524: Experimental Crystal Structure Determination
Related Article: Vanessa Soto-Cerrato, Pilar Manuel-Manresa, Elsa Hernando, Silvia Calabuig-Fariñas, Alicia Martínez-Romero, Víctor Fernández-Dueñas, Kristoffer Sahlholm, Thomas Knöpfel, María García-Valverde, Ananda M. Rodilla, Eloisa Jantus-Lewintre, Rosa Farràs, Francisco Ciruela, Ricardo Pérez-Tomás, and Roberto Quesada|2015|J.Am.Chem.Soc.|137|15892|doi:10.1021/jacs.5b09970
CCDC 1414523: Experimental Crystal Structure Determination
Related Article: Vanessa Soto-Cerrato, Pilar Manuel-Manresa, Elsa Hernando, Silvia Calabuig-Fariñas, Alicia Martínez-Romero, Víctor Fernández-Dueñas, Kristoffer Sahlholm, Thomas Knöpfel, María García-Valverde, Ananda M. Rodilla, Eloisa Jantus-Lewintre, Rosa Farràs, Francisco Ciruela, Ricardo Pérez-Tomás, and Roberto Quesada|2015|J.Am.Chem.Soc.|137|15892|doi:10.1021/jacs.5b09970