Tethered Dimers as NAD Synthetase Inhibitors with Antibacterial Activity
作者:Sadanandan E. Velu、Walter A. Cristofoli、Gabriel J. Garcia、Christie G. Brouillette、Milton C. Pierson、Chi-Hao Luan、Lawrence J. DeLucas、Wayne J. Brouillette
DOI:10.1021/jm030003x
日期:2003.7.1
The solution-phase parallel synthesis of tethered dimers was employed to identify lead inhibitors of bacterial NAD synthetase. Active dimers contained two aromatic end groups joined by a polymethylene linker, with one end group containing a permanent positive charge. Effective inhibitors of NAD synthetase also inhibited the growth of Gram-positive (but not Gram-negative) bacteria, including antibiotic-resistant strains. The desmethyl precursors of active inhibitors lacked a permanent positive charge and were inactive as either enzyme inhibitors or antibacterial agents. Similarly, a close structural analogue of the most active inhibitors contained two additional ether oxygens in the tether and was inactive in both assays. These results are consistent with the premise that NAD synthetase inhibition is responsible for the antibacterial actions and support further studies on NAD synthetase as a new target for antibacterial agents.
[EN] NK CELL ACTIVATING MOLECULES, NK CELLS AND PHARMACEUTICAL COMPOSITONS COMPRISING THE SAME<br/>[FR] MOLÉCULES ACTIVATRICES DES CELLULES NK, CELLULES NK ET COMPOSITIONS PHARMACEUTIQUES CONTENANT CELLES-CI
申请人:IND ACADEMIC COOP
公开号:WO2008117935A1
公开(公告)日:2008-10-02
[EN] The present invention relates to a compound represented by specific Formula 1; a process for preparing the same; NK cells treated with said compound; a process for treating NK cells with said compound; and a pharmaceutical composition comprising said compound or said NK cells. The present compound of Formula 1 may outstandingly increase expression of natural cytotoxicity receptors on NK cells such as NCR1, NCR2 and NCR3 and death ligands such as FasL and TRAIL. Thus, NK cel ls treated with the present compound have highly increased cytotoxicity against target cells such as cancer cells and host cells infected with viruses. Therefore, the present compound or NK cells treated with the same may be usefully used as a medical use such as anticancer agents and antiviral agents. [FR] La présente invention concerne un composé représenté par la formule spécifique 1, un procédé de préparation de ce composé, des cellules NK traitées avec ledit composé, un procédé de traitement de cellules NK avec ledit composé, et une composition pharmaceutique contenant ledit composé ou lesdites cellules NK. Le composé de formule 1 permet d'augmenter de manière importante l'expression des récepteurs activateurs NCR des cellules NK, tels que NCR1, NCR2 et NCR3 et des ligands de mort tels que FasL et TRAIL. Les cellules NK traitées avec le présent composé présentent de ce fait une cytotoxicité accrue contre des cellules cibles telles que des cellules cancéreuses et des cellules hôtes infectées par des virus. Ce composé ou les cellules NK traitées avec celui-ci peuvent par conséquent être utilisés de manière efficace dans les applications médicales, par exemple en tant qu'agents anticancéreux et agents antiviraux.