1584301-48-3Relevant academic research and scientific papers
Exploring in vitro and in vivo Hsp90 inhibitors activity against human protozoan parasites
Giannini, Giuseppe,Battistuzzi, Gianfranco
supporting information, p. 462 - 465 (2015/01/30)
A set of compounds, previously selected as potent Hsp90α inhibitors, has been studied on a panel of human parasites. 5-Aryl-3,4-isoxazolediamide derivatives (1) were active against two protozoa, Trypanosoma brucei rhodesiense and Plasmodium falciparum, with a good tolerability toward cytotoxicity on non-malignant L6 rat myoblast cell line, unlike the 1,5-diaryl,4-carboxamides-1,2,3-triazole derivatives (2) which, while showing a single-digit nM range activity against the same protozoa, were also highly cytotoxic on L6 cells. In a subsequent in vivo study, two isoxazolediamide derivatives, 1a and 1b, were very efficacious on the sleeping sickness-causing agent with a clear parasitaemia during treatment. These data, however, showed that not all protozoa are sensitive to Hsp90 inhibitors, as well as not all Hsp90 inhibitors are equally active on parasites.
4,5,6,7-Tetrahydro-isoxazolo-[4,5-c]-pyridines as a new class of cytotoxic Hsp90 inhibitors
Baruchello, Riccardo,Simoni, Daniele,Marchetti, Paolo,Rondanin, Riccardo,Mangiola, Stefania,Costantini, Cristiana,Meli, Maria,Giannini, Giuseppe,Vesci, Loredana,Carollo, Valeria,Brunetti, Tiziana,Battistuzzi, Gianfranco,Tolomeo, Manlio,Cabri, Walter
, p. 53 - 60 (2014/03/21)
Hsp90 is considered an interesting therapeutic target for anticancer drug development. Here we describe a new class of 4,5,6,7-tetrahydro-isoxazolo-[4,5- c]-pyridine compounds. A small library of derivatives has been synthesized and investigated. Some reported compounds show interesting properties combining both notable binding to Hsp90 and potent cell growth inhibitory activity. N-5 substitution with a 2,4 resorcinol carboxamide appears crucial for activity. Moreover, a derivative bearing a hydroxamic acid residue bound to C-3 amide portion was found to inhibit both Hsp90 and HDAC6.
