Structural correlation between lipophilicity and lipopolysaccharide-sequestering activity in spermine-sulfonamide analogs
作者:Mark R. Burns、Scott A. Jenkins、Nicolas M. Vermeulen、Rajalakshmi Balakrishna、Thuan B. Nguyen、Matthew R. Kimbrell、Sunil A. David
DOI:10.1016/j.bmcl.2006.09.026
日期:2006.12
Lipopolysaccharides (LPS), otherwise termed 'endotoxins', are outer-membrane constituents of Gram-negative bacteria, and play a key role in the pathogenesis of 'Septic Shock', a major cause of mortality in the critically ill patient. We had previously defined the pharmacophore necessary for small molecules to specifically bind and neutralize this complex carbohydrate. A series of aryl and aliphatic spermine-sulfonamide analogs were synthesized and tested in a series of binding and cell-based assays in order to probe the effect of lipophilicity on sequestration ability. A strong correlation was indeed found, supporting the hypothesis that endotoxin-neutralizing ability involves a lipophilic or membrane attachment event. The research discussed herein may be useful for the design of additional carbohydrate recognizing molecules and endotoxin-neutralizing drugs. (c) 2006 Elsevier Ltd. All rights reserved.
US7411002B2
申请人:——
公开号:US7411002B2
公开(公告)日:2008-08-12
[EN] POLYCATIONIC SULFONAMIDES AND USE THEREOF<br/>[FR] SULFONAMIDES POLYCATIONIQUES ET UTILISATION DE CEUX-CI
申请人:UNIV KANSAS
公开号:WO2007143735A2
公开(公告)日:2007-12-13
[EN] Certain lipophilic polycationic sulfonamides are provided and are useful for treating various diseases or conditions and particularly sepsis. [FR] La présente invention concerne certains sulfonamides polycationiques utiles pour traiter différentes maladies ou pathologies et particulièrement la sepsie.
Polycationic sulfonamides and use thereof
申请人:Burns Mark R.
公开号:US20070287750A1
公开(公告)日:2007-12-13
Certain lipophilic polycationic sulfonamides are provided and are useful for treating various diseases or conditions and particularly sepsis.
提供了某些亲脂性多阳离子磺胺类化合物,可用于治疗各种疾病或症状,尤其是败血症。
Polycationic Sulfonamides for the Sequestration of Endotoxin
作者:Mark R. Burns、Scott A. Jenkins、Matthew R. Kimbrell、Rajalakshmi Balakrishna、Thuan B. Nguyen、Benjamin G. Abbo、Sunil A. David
DOI:10.1021/jm061198m
日期:2007.2.1
Lipopolysaccharides (LPS) play a key role in the pathogenesis of septic shock, a major cause of mortality in the critically ill patient. We had previously shown that monoacylated polyamine compounds specifically bind to and neutralize the activity of LPS with high in vitro potency and afford complete protection in a murine model of endotoxic shock. Fatty acid amides of polyamines may be rapidly cleared from systemic circulation due to their susceptibility to nonspecific serum amidases and, thus, would be predicted to have a short duration of action. In a systematic effort to increase the likelihood of better bioavailability properties together with structural modifications that may result in gains in activity, we now report structure-activity relationships pertaining to endotoxin-binding and -neutralizing activities of homologated polyamine sulfonamides.