DMT1 Inhibitors Kill Cancer Stem Cells by Blocking Lysosomal Iron Translocation
作者:Andreea L. Turcu、Antoine Versini、Nadjib Khene、Christine Gaillet、Tatiana Cañeque、Sebastian Müller、Raphaël Rodriguez
DOI:10.1002/chem.202000159
日期:2020.6.10
(DMT1) have been identified that selectively target CSC by blockinglysosomalirontranslocation. This leads to lysosomaliron accumulation, production of reactive oxygen species and cell death with features of ferroptosis. DMT1inhibitors selectively target CSC in primary cancercells and circulating tumor cells, demonstrating the physiological relevance of this strategy. Taken together, this opens up opportunities
Pyrazolyl-pyrimidones inhibit the function of human solute carrier protein SLC11A2 (hDMT1) by metal chelation
作者:Marion Poirier、Jonai Pujol-Giménez、Cristina Manatschal、Sven Bühlmann、Ahmed Embaby、Sacha Javor、Matthias A. Hediger、Jean-Louis Reymond
DOI:10.1039/d0md00085j
日期:——
Solute carrier proteins (SLCs) control fluxes of ions and molecules across biological membranes and represent an emerging class of drug targets. SLC11A2 (hDMT1) mediates intestinal iron uptake and its inhibition might be used to treat iron overload diseases such as hereditary hemochromatosis. Here we report a micromolar (IC50 = 1.1 μM) pyrazolyl-pyrimidone inhibitor of radiolabeled iron uptake in hDMT1
Molecular rectangles from metallomacrocycles: development of dibenzofuran ligands
作者:Paula L. Caradoc-Davies、Lyall R. Hanton
DOI:10.1039/b300761h
日期:2003.4.17
Two new ligands 4,6-bis(4′-pyridylsulfide)dibenzofuran L1 and 4,6-bis(methylsulfanylmethyl)dibenzofuran L2, based on dibenzofuran with exodentate thio-pyridine arms were prepared. The crystal structures of three metallomacrocycles were determined. Reaction of L1 with AgClO4 in a 1 : 1 metal-to-ligand ratio gave a ClO4− clamped metallomacrocycle, 1. The analogous reaction with CuCl2 gave a metallomacrocycle, 2, in which bridging chloride ions bisected the macrocycle. Both metallomacrocycles were rectangular in shape but their cavities were occluded by bridging interactions. Reaction of L2 with CuI in a 1 : 2 metal-to-ligand ratio gave a metallomacrocycle, 3, in which Cu2I2 moieties were incorporated into the edge of the macrocycle. This allowed for clearly defined cavities, which formed channels containing MeCN molecules in the overall three-dimensional honeycomb array.
Discovery of benzylisothioureas as potent divalent metal transporter 1 (DMT1) inhibitors
作者:Zaihui Zhang、Vishnumurthy Kodumuru、Serguei Sviridov、Shifeng Liu、Mikhail Chafeev、Sultan Chowdhury、Nagasree Chakka、Jianyu Sun、Simon J. Gauthier、Maryanne Mattice、Laszlo G. Ratkay、Rainbow Kwan、Jay Thompson、Alison Brownlie Cutts、Jianmin Fu、Rajender Kamboj、Y. Paul Goldberg、Jay A. Cadieux
DOI:10.1016/j.bmcl.2012.05.129
日期:2012.8
Inhibition of intestinal brush border DMT1 offers a novel therapeutic approach to the prevention and treatment of disorders of iron overload. Several series of diaryl and tricyclic benzylisothiourea compounds as novel and potent DMT1 inhibitors were discovered from the original hit compound 1. These compounds demonstrated in vitro potency against DMT1, desirable cell permeability properties and a dose-dependent
Comparisons of activation energies for guest escapes from the inner phases of hemicarcerands with varying numbers of bowl-linking groups
作者:Timothy A. Bobbins、Donald J. Cram
DOI:10.1039/c39950001515
日期:——
The syntheses and characterization of new hemicarcerands 3 and new complexes of 4 are described; the half-lives and activationenergies for incarcerated Me2NCHO and Me2NCOMe escapingfrom the innerphases of 2 and 4 are compared.