Synthesis and in vitro evaluation of novel pro-drugs for the treatment of nephropathic cystinosis
摘要:
As part of our continuing work to obtain new pro-drugs for the treatment of nephropathic cystinosis, a number of glutaric and succinic acid derivatives of cystamine have been designed, synthesised and biologically evaluated in vitro. These compounds have been designed as odourless and tasteless pro-drugs which will release multiple molecules of cysteamine upon administration. All of the synthesised compounds evaluated in this study were non-cytotoxic and displayed a greater ability than cysteamine to deplete the levels of cystine in cultured fibroblasts. (C) 2011 Elsevier Ltd. All rights reserved.
PEGylated derivatives of cystamine as enhanced treatments for nephropathic cystinosis
作者:Ziad Omran、Graeme Kay、Alberto Di Salvo、Rachel M. Knott、Donald Cairns
DOI:10.1016/j.bmcl.2010.11.085
日期:2011.1
The genetic disease, nephropathic cystinosis is characterized by lysosomal accumulation of the amino acid cystine. Crystallization of cystine in affected organs, if untreated, results in mortality of the affected individuals by their middle to late teens. The only approved treatment for cystinosis is administration of cysteamine. However, cysteamine is associated with an offending odor and taste and this, coupled to a rapid first pass metabolism and a 6 h dosing regimen, suggest a clear need to improve the therapy. A number of PEGylated derivatives of cystamine, the disulfide counterpart of cysteamine, have been synthesised and evaluated in cultured cystinotic fibroblasts for toxicity and efficacy. All of the tested compounds were non-cytotoxic and displayed a remarkable depletion of intralysosomal cystine. (C) 2010 Elsevier Ltd. All rights reserved.
Synthesis and in vitro evaluation of novel pro-drugs for the treatment of nephropathic cystinosis
作者:Ziad Omran、Kevin A. Moloney、Amina Benylles、Graeme Kay、Rachel M. Knott、Donald Cairns
DOI:10.1016/j.bmc.2011.04.022
日期:2011.6
As part of our continuing work to obtain new pro-drugs for the treatment of nephropathic cystinosis, a number of glutaric and succinic acid derivatives of cystamine have been designed, synthesised and biologically evaluated in vitro. These compounds have been designed as odourless and tasteless pro-drugs which will release multiple molecules of cysteamine upon administration. All of the synthesised compounds evaluated in this study were non-cytotoxic and displayed a greater ability than cysteamine to deplete the levels of cystine in cultured fibroblasts. (C) 2011 Elsevier Ltd. All rights reserved.
DIHYDRAZIDE COMPOUNDS, PREPARATION AND USES THEREOF